5 работает (город бы добавить и над оформление поработать)

.gitignore

@@ -0,0 +1,38 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+*node_modules/*
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

.idea/misc.xml

@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
+  <component name="ProjectType">
+    <option name="id" value="jpab" />
+  </component>
 </project>

.idea/modules.xml

@@ -2,7 +2,9 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/IP_Ismailov_Pibd-22.iml" filepath="$PROJECT_DIR$/.idea/IP_Ismailov_Pibd-22.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/modules/sbapp.iml" filepath="$PROJECT_DIR$/.idea/modules/sbapp.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/modules/sbapp.main.iml" filepath="$PROJECT_DIR$/.idea/modules/sbapp.main.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/modules/sbapp.test.iml" filepath="$PROJECT_DIR$/.idea/modules/sbapp.test.iml" />
     </modules>
   </component>
 </project>

build.gradle

@@ -0,0 +1,37 @@
+plugins {
+	id 'java'
+	id 'org.springframework.boot' version '2.7.8'
+	id 'io.spring.dependency-management' version '1.0.15.RELEASE'
+}
+
+group = 'ru.ulstu.is'
+version = '0.0.1-SNAPSHOT'
+sourceCompatibility = '17'
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
+	implementation 'org.springframework.boot:spring-boot-devtools'
+	implementation 'nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect'
+
+	implementation 'org.webjars:bootstrap:5.1.3'
+	implementation 'org.webjars:jquery:3.6.0'
+	implementation 'org.webjars:font-awesome:6.1.0'
+
+	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+	implementation 'com.h2database:h2:2.1.210'
+
+	implementation 'org.hibernate.validator:hibernate-validator'
+
+	implementation 'org.springdoc:springdoc-openapi-ui:1.6.5'
+
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+tasks.named('test') {
+	useJUnitPlatform()
+}

front/package.json

@@ -0,0 +1,43 @@
+{
+  "name": "my-app",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
+    "@testing-library/user-event": "^13.5.0",
+    "bootstrap": "^5.2.3",
+    "json-server": "^0.17.1",
+    "npm-run-all": "^4.1.5",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-router-dom": "^6.4.5",
+    "react-scripts": "5.0.1",
+    "web-vitals": "^2.1.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "fake-server": "json-server data.json -p 8079",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

front/src/components/catalogs/CatalogCommunities.jsx

@@ -0,0 +1,47 @@
+import Catalog from "../common/Catalog";
+import { useEffect, useState } from "react";
+
+import DataService from "../../services/DataService";
+
+let headers = [
+  {label: "name", text: "Имя"},
+]
+
+export default function CatalogActors() {
+  const url = "/communities";
+
+  const [data, setData] = useState({
+    name: "",
+  });
+
+  const [communities, setCommunities] = useState([]);
+
+  function handleFormChange(e) {
+    setData({ ...data, [e.target.id]: e.target.value })
+  }
+
+  //уточнить
+  function onAdd() {
+    setData({name: "", music: communities[0]});
+  }
+
+
+  function onChange(data) {
+    setData(data);
+  }
+
+  function validate(data) {
+    if(data.name === "") return false;
+    return true;
+  }
+
+  return (
+    <Catalog url={url} headers={headers} data={data} onAdd={onAdd} onChange={onChange} validate={validate}>
+      <div className="mb-3">
+          <label htmlFor="name" className="form-label">Имя</label>
+          <input type="text" value={data.name} id="name" className="form-control" required autoComplete="off"
+              onChange={handleFormChange}/>
+      </div>
+    </Catalog>
+  )
+}

front/src/components/catalogs/CatalogUsers.jsx

@@ -0,0 +1,169 @@
+import Catalog from "../common/Catalog";
+import { useEffect, useState } from "react";
+
+import DataService from "../../services/DataService"
+
+let headers = [
+  {label: "name", text: "Имя"},
+  {label: "music", text: "Музыка"},
+  {label: "community", text: "Группы"},
+  { label: "city", text: "Город" }
+]
+export default function CatalogUsers() {
+  const url = "/users";
+
+  const [data, setData] = useState({
+    name: "",
+    music: [],
+    community: [],
+    city: ""
+  });
+
+  const [selectedData, setSelectedData] = useState({
+    music: "",
+    community: ""
+  });
+
+  const [musics, setMusics] = useState([]);
+  const [communities, setCommunities] = useState([]);
+
+  useEffect(() => {
+    let music;
+    DataService.readAll("/musics").then(res => {
+      setMusics(res)
+      music = res[0].name;
+    }).then(() => (
+      DataService.readAll("/communities")
+    )).then(res => {
+      setCommunities(res)
+      setSelectedData({music, community: res[0].name});
+    });
+  }, [])
+
+
+  function handleFormChange(e) {
+    console.log(e.target.value);
+    setData({ ...data, [e.target.id]: e.target.value })
+  }
+
+  function handleChangeSelected(e) {
+    setSelectedData({...selectedData, [e.target.id]: e.target.value});
+  }
+
+  function addMusic() {
+    for(let g of data.music) {
+      if(g == selectedData.music) return;
+    }
+    let temp = data.music.slice(0);
+    temp.push(selectedData.music);
+    setData({...data, music: temp});
+  }
+
+  function addCommunity() {
+    for(let a of data.community) {
+      if(a == selectedData.community) return;
+    }
+    let temp = data.community.slice(0);
+    temp.push(selectedData.community);
+    setData({...data, community: temp});
+  }
+
+  function deleteMusic(e) {
+    let musicName = e.target.previousSibling.textContent;
+    let temp = data.music.filter(x => (x != musicName));
+    setData({...data, music: temp})
+  }
+
+  function deleteCommunity(e) {
+    let communityName = e.target.previousSibling.textContent;
+    let temp = data.community.filter(x => (x != communityName));
+    setData({...data, community: temp})
+  }
+
+  function onAdd() {
+    setData({name: "", music: [], community: []});
+  }
+
+  
+  function onChange(data) {
+    setData(data);
+  }
+
+  function validate(data) {
+    if(data.name === "") return false;
+    return true;
+  }
+
+  return (
+    <Catalog url={url} headers={headers} data={data} onAdd={onAdd} onChange={onChange} validate={validate}>
+      <div>
+        <div className="mb-3">
+          <label htmlFor="name" className="form-label">Название</label>
+          <input
+            type="text"
+            value={data.name}
+            id="name"
+            className="form-control"
+            required
+            autoComplete="off"
+            onChange={handleFormChange}
+          />
+        </div>
+        <div className="mb-3">
+                  <label htmlFor="city" className="form-label">Город</label>
+                  <input
+                    type="text"
+                    value={data.city}
+                    id="city"
+                    className="form-control"
+                    required
+                    autoComplete="off"
+                    onChange={handleFormChange}
+                  />
+                </div>
+        <select
+          id="music"
+          className="form-select mb-3"
+          required
+          value={selectedData.music}
+          onChange={handleChangeSelected}
+        >
+          <option disabled value="">Укажите музыку</option>
+          {musics.map(({ name, id }) => (
+            <option key={id} value={name}>{name}</option>
+          ))}
+        </select>
+        {data.music.map(value => (
+          <div className="badge bg-secondary mb-3" key={value}>
+            <span>{value}</span>
+            <button className="btn-close bg-danger" onClick={deleteMusic}></button>
+          </div>
+        ))}
+
+        <br></br>
+        <button onClick={addMusic} className="btn btn-success mb-3">Добавить музыку</button>
+
+        <select
+          id="community"
+          className="form-select mb-3"
+          required
+          value={selectedData.community}
+          onChange={handleChangeSelected}
+        >
+          <option disabled value="">Укажите группу</option>
+          {communities.map(({ name, id }) => (
+            <option key={id} value={name}>{name}</option>
+          ))}
+        </select>
+        {data.community.map(value => (
+          <div className="badge bg-secondary mb-3" key={value}>
+            <span>{value}</span>
+            <button className="btn-close bg-danger" onClick={deleteCommunity}></button>
+          </div>
+        ))}
+        <br></br>
+        <button onClick={addCommunity} className="btn btn-success mb-3">Добавить группу</button>
+      </div>
+    </Catalog>
+  )
+}

front/src/components/pages/User.jsx

@@ -0,0 +1,15 @@
+import playIcon from "../../img/play.png";
+import "./Contacts.css";
+
+export default function User() {
+  return (
+    <main>
+      <div class="player">
+        <div class="player__menu">
+          <button class="player__button"><img class="player__button-img" src={playIcon} alt=""/></button>
+          <div class="player__progress"></div>
+        </div>
+      </div>
+    </main>
+  )
+}

front/src/components/pages/Users.jsx

@@ -0,0 +1,21 @@
+import Banner from "../Banner";
+
+export default function Users() {
+  return (
+    <main>
+      <section className="categories">
+
+        <h2 className="text-white">Музыка</h2>
+        <div className="btn-group">
+          <button className="btn btn-success">Комедии</button>
+          <button className="btn btn-success">Драмы</button>
+          <button className="btn btn-success">Трилер</button>
+        </div>
+      </section>
+      <section className="banner">
+        <h2 className="text-white">Все фильмы</h2>
+        <Banner images={images}/>
+    </section>
+  </main>
+  )
+}

front/src/components/reports/ReportUsers.jsx

@@ -0,0 +1,25 @@
+import Catalog from "../common/Catalog";
+import { useEffect, useState } from "react";
+
+import DataService from "../../services/DataService"
+import Table from "../common/Table";
+
+import ReportSelector from "./ReportSelector";
+
+let headers = [
+  {label: "name", text: "Имя"},
+  {label: "music", text: "Музыка"}
+]
+
+export default function ReportsFilms() {
+  const [url, setUrl] = useState("/users?music=mus1");
+
+  function formData(music) {
+    console.log(music);
+    setUrl("/users?music=" + music);
+  }
+
+  return (
+    <ReportSelector headers={headers} url={url} formData={formData}/>
+  )
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'sbapp'

src/main/java/ru/ulstu/is/sbapp/SbappApplication.java

@@ -0,0 +1,16 @@
+package ru.ulstu.is.sbapp;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@SpringBootApplication
+@RestController
+public class SbappApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SbappApplication.class, args);
+	}
+}

src/main/java/ru/ulstu/is/sbapp/WebConfiguration.java

@@ -0,0 +1,29 @@
+package ru.ulstu.is.sbapp;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**").allowedMethods("*");
+    }
+    public static final String REST_API = "/api";
+
+    @Override
+    public void addViewControllers(ViewControllerRegistry registry) {
+        WebMvcConfigurer.super.addViewControllers(registry);
+        registry.addViewController("users");
+        registry.addViewController("contacts");
+        registry.addViewController("catalogs");
+    }
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        registry.addResourceHandler("/static/css/**").addResourceLocations("/static/css/");
+    }
+
+}

src/main/java/ru/ulstu/is/sbapp/calculator/controller/CalcController.java

@@ -0,0 +1,44 @@
+package ru.ulstu.is.sbapp.calculator.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import ru.ulstu.is.sbapp.calculator.service.CalculatorService;
+
+@RestController
+public class CalcController {
+    private final CalculatorService speakerService;
+
+    public CalcController(CalculatorService speakerService) {
+        this.speakerService = speakerService;
+    }
+
+    @GetMapping("/sum")
+    public String Sum(@RequestParam(value = "first", defaultValue = "1") Object first,
+                      @RequestParam(value = "second", defaultValue = "1") Object second,
+                      @RequestParam(value = "type", defaultValue = "int") String type) {
+        return speakerService.Sum(first, second, type);
+    }
+
+    @GetMapping("/minus")
+    public String Ras(@RequestParam(value = "first", defaultValue = "1") Object first,
+                      @RequestParam(value = "second", defaultValue = "1") Object second,
+                      @RequestParam(value = "type", defaultValue = "int") String type) {
+        return speakerService.Ras(first, second, type);
+    }
+
+    @GetMapping("/reverse")
+    public String Pros(@RequestParam(value = "first", defaultValue = "1") Object first,
+                       @RequestParam(value = "second", defaultValue = "1") Object second,
+                       @RequestParam(value = "type", defaultValue = "int") String type) {
+        return speakerService.Rev(first, second, type);
+    }
+
+    @GetMapping("/comparison")
+    public String Del(@RequestParam(value = "first", defaultValue = "1") Object first,
+                      @RequestParam(value = "second", defaultValue = "1") Object second,
+                      @RequestParam(value = "type", defaultValue = "int") String type) {
+        return speakerService.Com(first, second, type);
+    }
+}

src/main/java/ru/ulstu/is/sbapp/calculator/domain/Calculator.java

@@ -0,0 +1,11 @@
+package ru.ulstu.is.sbapp.calculator.domain;
+
+public interface Calculator<T>{
+    public T Sum(T first, T second);
+
+    public T Minus(T first, T second);
+
+    public T Reverse(T first, T second);
+
+    public T Comparison(T first, T second);
+}

src/main/java/ru/ulstu/is/sbapp/calculator/domain/DateCalculator.java

@@ -0,0 +1,39 @@
+package ru.ulstu.is.sbapp.calculator.domain;
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
+
+@Component(value="date")
+public class DateCalculator implements Calculator<LocalDate> {
+
+    @Override
+    public LocalDate Sum(LocalDate first, LocalDate second) {
+        return first.plusYears(second.getYear()).
+                plusMonths(second.getMonthValue()).plusDays(second.getDayOfMonth());
+    }
+
+    @Override
+    public LocalDate Minus(LocalDate first, LocalDate second) {
+        return first.minusYears(second.getYear()).
+                minusMonths(second.getMonthValue()).minusDays(second.getDayOfMonth());
+    }
+
+    @Override
+    public LocalDate Reverse(LocalDate first, LocalDate second) {
+
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
+        String formattedFirst = first.format(formatter);
+        return LocalDate.parse(formattedFirst, formatter);
+    }
+
+    @Override
+    public LocalDate Comparison(LocalDate first, LocalDate second) {
+        int comparisonResult = first.compareTo(second);
+
+        if (comparisonResult < 0)
+            return second;
+        else return first;
+    }
+}

src/main/java/ru/ulstu/is/sbapp/calculator/domain/IntCalculator.java

@@ -0,0 +1,26 @@
+package ru.ulstu.is.sbapp.calculator.domain;
+
+import org.springframework.stereotype.Component;
+
+@Component(value="int")
+public class IntCalculator implements Calculator<Integer>{
+    @Override
+    public Integer Sum(Integer x, Integer y) {
+        return x + y;
+    }
+
+    @Override
+    public  Integer Minus(Integer x, Integer y) {
+        return x - y;
+    }
+    @Override
+    public Integer Reverse(Integer first, Integer second) {
+        return (first + second) * (-1);
+    }
+    @Override
+    public Integer Comparison(Integer first, Integer second) {
+        if (first >= second)
+            return first;
+        else return second;
+    }
+}

src/main/java/ru/ulstu/is/sbapp/calculator/domain/StringCalculator.java

@@ -0,0 +1,40 @@
+package ru.ulstu.is.sbapp.calculator.domain;
+
+import org.springframework.stereotype.Component;
+
+@Component(value="string")
+public class StringCalculator implements Calculator<String>{
+
+    @Override
+    public String Sum(String first, String second) {
+        return first.concat(second);
+    }
+
+    @Override
+    public String Minus(String first, String second) {
+        String[] arr = first.split("");
+        for(int i = 0; i < first.length(); i++){
+            if (second.contains(arr[i])){
+                arr[i] = "";
+            }
+        }
+        return String.join("", arr);
+    }
+
+    @Override
+    public String Reverse(String first, String second) {
+        String ourStr = first.concat(second);
+        StringBuilder newStr = new StringBuilder();
+        for(int i = ourStr.length() - 1; i >= 0; i--){
+            newStr.append(ourStr.charAt(i));
+        }
+        return newStr.toString();
+    }
+
+    @Override
+    public String Comparison(String first, String second) {
+        if (first.length() >= second.length())
+            return first;
+        else return second;
+    }
+}

src/main/java/ru/ulstu/is/sbapp/calculator/service/CalculatorService.java

@@ -0,0 +1,67 @@
+package ru.ulstu.is.sbapp.calculator.service;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.stereotype.Service;
+import ru.ulstu.is.sbapp.calculator.domain.Calculator;
+import ru.ulstu.is.sbapp.calculator.domain.DateCalculator;
+import ru.ulstu.is.sbapp.calculator.domain.StringCalculator;
+
+import java.text.SimpleDateFormat;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
+@Service
+public class CalculatorService {
+    private final ApplicationContext _applicationContext;
+
+    public CalculatorService(ApplicationContext applicationContext) {
+        this._applicationContext = applicationContext;
+    }
+
+    public String Sum(Object first, Object second, String type) {
+        final Calculator speaker = (Calculator) _applicationContext.getBean(type);
+
+
+        if (speaker instanceof StringCalculator)
+            return String.format("%s", speaker.Sum(first, second));
+
+        else if (speaker instanceof DateCalculator)
+                return String.format("%s", (speaker.Sum(LocalDate.parse(first.toString()), LocalDate.parse(second.toString()))));
+
+        else return String.format("%s", speaker.Sum(Integer.parseInt(first.toString()), Integer.parseInt(second.toString())));
+
+    }
+
+    public String Ras(Object first, Object second, String type) {
+        final Calculator speaker = (Calculator) _applicationContext.getBean(type);
+        if (speaker instanceof StringCalculator)
+            return String.format("%s", speaker.Minus(first,second));
+
+        else if (speaker instanceof DateCalculator)
+            return String.format("%s", (speaker.Minus(LocalDate.parse(first.toString()), LocalDate.parse(second.toString()))));
+
+        else
+            return String.format("%s", speaker.Minus(Integer.parseInt(first.toString()),Integer.parseInt(second.toString())));
+    }
+    public String Rev(Object first, Object second, String type) {
+        final Calculator speaker = (Calculator) _applicationContext.getBean(type);
+        if (speaker instanceof StringCalculator)
+            return String.format("%s", speaker.Reverse(first,second));
+
+        else if (speaker instanceof DateCalculator)
+            return String.format("%s", (speaker.Reverse(LocalDate.parse(first.toString()), LocalDate.parse(second.toString()))));
+
+        else return String.format("%s", speaker.Reverse(Integer.parseInt(first.toString()),Integer.parseInt(second.toString())));
+
+    }
+    public String Com(Object first, Object second, String type) {
+        final Calculator speaker = (Calculator) _applicationContext.getBean(type);
+        if (speaker instanceof StringCalculator)
+            return String.format("%s", speaker.Comparison(first,second));
+
+        else if (speaker instanceof DateCalculator)
+            return String.format("%s", (speaker.Comparison(LocalDate.parse(first.toString()), LocalDate.parse(second.toString()))));
+
+        else return String.format("%s", speaker.Comparison(Integer.parseInt(first.toString()), Integer.parseInt(second.toString())));
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/CommunityController.java

@@ -0,0 +1,44 @@
+package ru.ulstu.is.sbapp.socialNetwork.controller;
+
+import org.springframework.web.bind.annotation.*;
+import ru.ulstu.is.sbapp.WebConfiguration;
+import ru.ulstu.is.sbapp.socialNetwork.dto.CommunityDTO;
+import ru.ulstu.is.sbapp.socialNetwork.services.CommunityService;
+
+import javax.validation.Valid;
+import java.util.List;
+
+@RestController
+@RequestMapping(WebConfiguration.REST_API + "/communities")
+public class CommunityController {
+    private final CommunityService communityService;
+
+    public CommunityController(CommunityService communityService) {
+        this.communityService = communityService;
+    }
+
+    @GetMapping("/{id}")
+    public CommunityDTO getCommunity(@PathVariable Long id) {
+        return new CommunityDTO(communityService.findCommunity(id));
+    }
+
+    @GetMapping("")
+    public List<CommunityDTO> getCommunities() {
+        return communityService.findAllCommunities().stream().map(CommunityDTO::new).toList();
+    }
+
+    @PostMapping("")
+    public CommunityDTO createCommunity(@RequestBody @Valid CommunityDTO community) {
+        return new CommunityDTO(communityService.addCommunity(community.getName()));
+    }
+
+    @PatchMapping("")
+    public CommunityDTO updateCommunity(@PathVariable Long id, @RequestBody @Valid CommunityDTO community) {
+        return new CommunityDTO(communityService.updateCommunity(id, community.getName()));
+    }
+
+    @DeleteMapping("/{id}")
+    public CommunityDTO deleteCommunity(@PathVariable Long id) {
+        return new CommunityDTO(communityService.deleteCommunity(id));
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/MusicController.java

@@ -0,0 +1,50 @@
+package ru.ulstu.is.sbapp.socialNetwork.controller;
+
+
+import org.springframework.web.bind.annotation.*;
+import ru.ulstu.is.sbapp.WebConfiguration;
+import ru.ulstu.is.sbapp.socialNetwork.dto.MusicDTO;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.services.MusicService;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.List;
+
+@RestController
+@RequestMapping(WebConfiguration.REST_API + "/musics")
+public class MusicController {
+
+    private final MusicService musicService;
+
+    public MusicController(MusicService musicService){
+        this.musicService = musicService;
+    }
+
+    @GetMapping("/{id}")
+    public MusicDTO getMusic(@PathVariable Long id){
+        return new MusicDTO(musicService.findMusic(id));
+    }
+
+    @GetMapping("")
+    public List<MusicDTO> getMusics() {
+        return musicService.findAllMusics().stream().map(MusicDTO::new).toList();
+    }
+
+    @PostMapping("")
+    public MusicDTO createMusic(@RequestBody @Valid MusicDTO music) {
+        return new MusicDTO(musicService.addMusic(music.getName()));
+    }
+
+    @PatchMapping("/{id}")
+    public MusicDTO updateMusic(@PathVariable Long id,
+                                @RequestBody @Valid MusicDTO music) {
+        return new MusicDTO(musicService.updateMusic(id, music.getName()));
+    }
+
+    @DeleteMapping("/{id}")
+    public MusicDTO deleteMusic(@PathVariable Long id) {
+        return new MusicDTO(musicService.deleteMusic(id));
+    }
+
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/controller/UserController.java

@@ -0,0 +1,68 @@
+package ru.ulstu.is.sbapp.socialNetwork.controller;
+
+import org.springframework.web.bind.annotation.*;
+import ru.ulstu.is.sbapp.WebConfiguration;
+import ru.ulstu.is.sbapp.socialNetwork.dto.UserDTO;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+
+
+import javax.validation.Valid;
+import java.util.List;
+
+
+@RestController
+@RequestMapping(WebConfiguration.REST_API + "/users")
+public class UserController {
+    private final UserService userService;
+
+    public UserController(UserService userService){
+        this.userService = userService;
+    }
+
+    @GetMapping("/{id}")
+    public UserDTO getUser(@PathVariable Long id) {
+        return new UserDTO(userService.findUser(id));
+    }
+
+    @GetMapping("")
+    public List<UserDTO> getUsers() {
+        return userService.findAllUsers().stream().map(UserDTO::new).toList();
+    }
+
+    @PostMapping("")
+    public UserDTO createUser(@RequestBody @Valid UserDTO user) {
+        UserModel result = userService.addUser(user.getName(), user.getCity());
+        userService.updateCommunities(result.getId(), user.getCommunity());
+        return new UserDTO(userService.updateMusics(result.getId(), user.getMusic()));
+    }
+
+    @PatchMapping("/{id}")
+    public UserDTO updateUser(@PathVariable Long id,
+                              @RequestBody @Valid UserDTO user) {
+        UserModel result = userService.updateUser(id, user.getName());
+        userService.updateCommunities(result.getId(), user.getCommunity());
+        return new UserDTO(userService.updateMusics(result.getId(), user.getMusic()));
+    }
+
+    @PatchMapping("/add_music/{id}")
+    public UserDTO addMusic(@PathVariable Long id, @RequestParam Long music_id) {
+        return new UserDTO(userService.addMusic(id, music_id));
+    }
+
+    @PatchMapping("/add_community/{id}")
+    public UserDTO addCommunity(@PathVariable Long id, @RequestParam Long community_id) {
+        return new UserDTO(userService.addCommunity(id, community_id));
+    }
+    @GetMapping("/search")
+    public List<UserDTO> searchUsers(@RequestParam("city") String city) {
+        List<UserModel> users = userService.findUserByCity(city);
+        return users.stream().map(UserDTO::new).toList();
+    }
+
+    @DeleteMapping("/{id}")
+    public UserDTO deleteUser(@PathVariable Long id) {
+        return new UserDTO(userService.deleteUser(id));
+    }
+
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/dto/CommunityDTO.java

@@ -0,0 +1,43 @@
+package ru.ulstu.is.sbapp.socialNetwork.dto;
+
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+
+import java.util.List;
+
+public class CommunityDTO {
+    private Long id;
+    private String name;
+
+    public CommunityDTO(){
+    }
+    public CommunityDTO(Community community){
+        this.id = community.getId();
+        this.name = community.getName();
+    }
+
+    private List<UserModel> users;
+
+    public List<UserModel> getUsers() {
+        return users;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+    @Override
+    public String toString() {
+        return "User{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                '}';
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/dto/MusicDTO.java

@@ -0,0 +1,27 @@
+package ru.ulstu.is.sbapp.socialNetwork.dto;
+
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+
+public class MusicDTO {
+    private Long id;
+    public String name;
+
+    public MusicDTO(){
+    }
+    public MusicDTO(Music music){
+        this.id = music.getId();
+        this.name = music.getName();
+    }
+    public Long getId() {return id;}
+
+    public String getName() {return name;}
+    public void setName(String name) {this.name = name;}
+
+    @Override
+    public String toString(){
+        return "Music{" +
+                "id = " + id +
+                "name = " + name + '\'' +
+                '}';
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/dto/UserDTO.java

@@ -0,0 +1,81 @@
+package ru.ulstu.is.sbapp.socialNetwork.dto;
+
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+
+import java.util.List;
+
+public class UserDTO {
+    private Long id;
+    private String name;
+    private String city;
+
+    public UserDTO(){}
+
+    public UserDTO(UserModel user){
+
+        this.id = user.getId();
+        this.name = user.getName();
+        this.city = user.getCity();
+        if(user.getMusics() != null) {
+            this.music = user.getMusics().stream().map(Music::getName).toList();
+        }
+        if(user.getGroups() != null) {
+            this.community = user.getGroups().stream().map(Community::getName).toList();
+        }
+    }
+    public UserDTO(Long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+    private List<String> music;
+    private List<String> community;
+
+    public Long getId(){return id;}
+
+    public String getName(){return name;}
+    public void setName(String firstName){this.name = firstName;}
+
+    public List<String> getMusic() {
+        return music;
+    }
+
+    public List<String> getCommunity() {
+        return community;
+    }
+
+    public void setCommunities(List<String> communities) {
+        this.community = communities;
+    }
+
+    public void setMusics(List<String> musics) {
+        this.music = musics;
+    }
+
+    public void setCity(String city){
+        this.city = city;
+    }
+
+    public String getCity(){
+        return city;
+    }
+
+    public void setMusic(List<String> music) {
+        this.music = music;
+    }
+
+    public void setCommunity(List<String> community) {
+        this.community = community;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                ", city='" + city + '\'' +
+                '}';
+    }
+
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/models/Community.java

@@ -0,0 +1,49 @@
+package ru.ulstu.is.sbapp.socialNetwork.models;
+
+import javax.persistence.*;
+import java.util.List;
+import java.util.Objects;
+
+@Entity
+public class Community {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    private String name;
+
+    @ManyToMany(fetch = FetchType.EAGER, mappedBy = "communities")
+    private List<UserModel> users;
+
+    public Community() {
+    }
+
+    public Community(String name){
+        this.name = name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+    public List<UserModel> getUsers() {
+        return users;
+    }
+    public Long getId() {
+        return id;
+    }
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+    @Override
+    public String toString() {
+        return "User{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                '}';
+    }
+}
+

src/main/java/ru/ulstu/is/sbapp/socialNetwork/models/Music.java

@@ -0,0 +1,49 @@
+package ru.ulstu.is.sbapp.socialNetwork.models;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import java.util.Objects;
+
+@Entity
+public class Music {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    public String name;
+
+
+    public Music() {
+    }
+
+    public Music(String name){
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+
+    public void setName(String name) {
+        this.name = name;
+    }
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                '}';
+    }
+}
+

src/main/java/ru/ulstu/is/sbapp/socialNetwork/models/UserModel.java

@@ -0,0 +1,89 @@
+package ru.ulstu.is.sbapp.socialNetwork.models;
+import org.hibernate.annotations.LazyCollection;
+import org.hibernate.annotations.LazyCollectionOption;
+
+import javax.persistence.*;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class UserModel {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+
+    private Long id;
+    private String name;
+    private String city;
+    //поиск людей по городу
+
+    @ManyToMany
+    @LazyCollection(LazyCollectionOption.FALSE)
+    @JoinTable(name="usermodels_musics",
+            joinColumns = @JoinColumn(name="usermodel_id"),
+            inverseJoinColumns = @JoinColumn(name="music_id")
+    )
+    private List<Music> musics;
+
+    @ManyToMany
+    @LazyCollection(LazyCollectionOption.FALSE)
+    @JoinTable(name="usermodels_communities",
+            joinColumns = @JoinColumn(name="usermodel_id"),
+            inverseJoinColumns = @JoinColumn(name="community_id")
+    )
+    private List<Community> communities;
+
+    public UserModel(){
+    }
+    public UserModel(String name){
+        this.name = name;
+        this.city = "Mosscow";
+    }
+    public UserModel(String name, String city){
+        this.name = name;
+        this.city = city;
+    }
+    public void deleteMusics() {
+        musics = null;
+    }
+    public void deleteCommunities() {
+        communities = null;
+    }
+
+    public Long getId(){return id;}
+
+    public String getName(){return name;}
+    public void setName(String firstName){this.name = firstName;}
+
+    public void addMusic(Music g) {
+        if(musics == null) musics = new ArrayList<>();
+        musics.add(g);
+    }
+    public List<Music> getMusics() {
+        return musics;
+    }
+
+    public void addCommunity(Community g) {
+        if(communities == null) communities = new ArrayList<>();
+        communities.add(g);
+    }
+    public List<Community> getGroups() {
+        return communities;
+    }
+
+    public void setCity(String city){
+        this.city = city;
+    }
+    public String getCity(){
+        return city;
+    }
+
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                ", city='" + city + '\'' +
+                '}';
+    }
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/repository/CommunityRepository.java

@@ -0,0 +1,8 @@
+package ru.ulstu.is.sbapp.socialNetwork.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+
+public interface CommunityRepository extends JpaRepository<Community, Long> {
+    Community findByName(String name);
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/repository/MusicRepository.java

@@ -0,0 +1,10 @@
+package ru.ulstu.is.sbapp.socialNetwork.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+
+public interface MusicRepository extends JpaRepository<Music, Long> {
+    Music findByName(String name);
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/repository/UserRepository.java

@@ -0,0 +1,10 @@
+package ru.ulstu.is.sbapp.socialNetwork.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+
+import java.util.List;
+
+public interface UserRepository extends JpaRepository<UserModel, Long> {
+    List<UserModel> findByCity(String city);
+}

src/main/java/ru/ulstu/is/sbapp/socialNetwork/services/CommunityService.java

@@ -0,0 +1,88 @@
+package ru.ulstu.is.sbapp.socialNetwork.services;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityNotFoundException;
+import javax.persistence.PersistenceContext;
+import java.util.List;
+import java.util.Optional;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.repository.CommunityRepository;
+
+@Service
+public class CommunityService {
+
+    private CommunityRepository repo;
+
+    public CommunityService(CommunityRepository repo){
+        this.repo = repo;
+    }
+
+    @Transactional
+    public Community addCommunity(String name) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Community name is null or empty");
+        }
+        Community community = new Community(name);
+        return repo.save(community);
+    }
+
+    @Transactional(readOnly = true)
+    public Community findCommunity(Long id) {
+        final Optional<Community> сommunity = repo.findById(id);
+        if (сommunity.isEmpty()) {
+            throw new EntityNotFoundException(String.format("Community with id [%s] is not found", id));
+        }
+        return сommunity.get();
+    }
+
+    @Transactional(readOnly = true)
+    public List<Community> findAllCommunities() {
+        return repo.findAll();
+    }
+
+
+    @Transactional
+    public Community updateCommunity(Long id, String name) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Music name is null or empty");
+        }
+        final Optional<Community> currentCommunityOpt = repo.findById(id);
+
+        if(currentCommunityOpt.isEmpty()) {
+            return null;
+        }
+
+        final Community currentCommunity = currentCommunityOpt.get();
+
+        currentCommunity.setName(name);
+        return repo.save(currentCommunity);
+    }
+    @Transactional
+    public Community findByName(String name) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Genre name is null or empty");
+        }
+        return repo.findByName(name);
+    }
+
+    @Transactional
+    public Community deleteCommunity(Long id) {
+        final Optional<Community> currentCommunity = repo.findById(id);
+        if(currentCommunity.isEmpty()) {
+            return null;
+        }
+        repo.deleteById(id);
+        return currentCommunity.get();
+    }
+
+    @Transactional
+    public void deleteAllCommunities() {
+        repo.deleteAll();
+    }
+
+}
+

src/main/java/ru/ulstu/is/sbapp/socialNetwork/services/MusicService.java

@@ -0,0 +1,96 @@
+package ru.ulstu.is.sbapp.socialNetwork.services;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.repository.CommunityRepository;
+import ru.ulstu.is.sbapp.socialNetwork.repository.MusicRepository;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityNotFoundException;
+import javax.persistence.PersistenceContext;
+import java.util.List;
+import java.util.Optional;
+
+
+@Service
+public class MusicService {
+
+    private MusicRepository repo;
+
+    public MusicService(MusicRepository repo) {
+        this.repo = repo;
+    }
+    @Transactional
+    public Music addMusic(String name) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Music name is null or empty");
+        }
+
+        Music music = new Music(name);
+
+        return repo.save(music);
+    }
+
+    @Transactional(readOnly = true)
+    public Music findMusic(Long id) {
+
+        final Optional<Music> music = repo.findById(id);
+        if (music.isEmpty()) {
+            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", id));
+        }
+        return music.get();
+    }
+
+    @Transactional(readOnly = true)
+    public List<Music> findAllMusics() {
+        return repo.findAll();
+    }
+
+    @Transactional
+    public Music updateMusic(Long id, String name) {
+
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Music name is null or empty");
+        }
+        final Optional<Music> currentMusicOpt = repo.findById(id);
+
+        if(currentMusicOpt.isEmpty()) {
+            return null;
+        }
+
+        final Music currentMusic = currentMusicOpt.get();
+
+        currentMusic.setName(name);
+        return repo.save(currentMusic);
+    }
+    @Transactional
+    public Music findByName(String name) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Music name is null or empty");
+        }
+        return repo.findByName(name);
+    }
+
+    @Transactional
+    public Music deleteMusic(Long id) {
+
+        final Optional<Music> currentMusic = repo.findById(id);
+        if(currentMusic.isEmpty()) {
+            return null;
+        }
+
+        repo.deleteById(id);
+        return currentMusic.get();
+    }
+
+    @Transactional
+    public void deleteAllMusics() {
+        repo.deleteAll();
+    }
+
+}
+

src/main/java/ru/ulstu/is/sbapp/socialNetwork/services/UserService.java

@@ -0,0 +1,212 @@
+package ru.ulstu.is.sbapp.socialNetwork.services;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.repository.UserRepository;
+
+import javax.persistence.EntityNotFoundException;
+import javax.persistence.Query;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class UserService {
+
+    private UserRepository repo;
+
+    private CommunityService communityService;
+    private MusicService musicService;
+
+    public UserService(UserRepository repo, MusicService musicService, CommunityService communityService) {
+        this.repo = repo;
+        this.musicService = musicService;
+        this.communityService = communityService;
+    }
+
+    @Transactional
+    public UserModel addUser(String name, String city) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("User name is null or empty");
+        }
+        UserModel user = new UserModel(name, city);
+        return repo.save(user);
+    }
+    @Transactional
+    public UserModel addUser(String name, String city, List<String> musics, List<String> communities) {
+
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("Name is null or empty");
+        }
+
+        UserModel user = new UserModel(name, city);
+        UserModel result = repo.save(user);
+
+        updateMusics(result.getId(), musics);
+        return updateCommunities(user.getId(), communities);
+    }
+
+    @Transactional
+    public UserModel addMusic(Long userId, Long musicId) {
+        final Optional<UserModel> userOpt= repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("User with id [%s] is not found", musicId));
+        }
+
+        UserModel user = userOpt.get();
+
+        final Music music = musicService.findMusic(musicId);
+        if (music == null) {
+            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", musicId));
+        }
+
+        user.addMusic(music);
+        return repo.save(user);
+    }
+    @Transactional
+    public UserModel addCommunity(Long userId, Long communityId) {
+        final Optional<UserModel> userOpt = repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("User with id [%s] is not found", userId));
+        }
+
+        UserModel user = userOpt.get();
+
+        final Community community = communityService.findCommunity(communityId);
+        if (community == null) {
+            throw new EntityNotFoundException(String.format("Community with id [%s] is not found", communityId));
+        }
+
+        user.addCommunity(community);
+        return repo.save(user);
+    }
+
+    @Transactional(readOnly = true)
+    public UserModel findUser(Long id) {
+
+        final Optional<UserModel> user = repo.findById(id);
+        if (user.isEmpty()) {
+            throw new EntityNotFoundException(String.format("UserModel with id [%s] is not found", id));
+        }
+        return user.get();
+    }
+
+//    @Transactional(readOnly = true)
+//    public List<UserModel> findUserByCity(String city){
+//        Query query = repo.createQuery("select u from UserModel u where u.city = :city",
+//                UserModel.class).setParameter("city", city);
+//        List<UserModel>  result = query.getResultList();
+//       return result;
+//    }
+    @Transactional(readOnly = true)
+    public List<UserModel> findUserByCity(String city){
+        List<UserModel>  result = repo.findByCity(city);
+       return result;
+    }
+
+    @Transactional(readOnly = true)
+    public List<UserModel> findAllUsers() {
+        return repo.findAll();
+    }
+
+    @Transactional
+    public UserModel updateUser(Long id, String name) {
+
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("User name is null or empty");
+        }
+        final Optional<UserModel> currentUserOpt = repo.findById(id);
+
+        if(currentUserOpt.isEmpty()) {
+            return null;
+        }
+
+        final UserModel currentUser = currentUserOpt.get();
+
+        currentUser.setName(name);
+        return repo.save(currentUser);
+    }
+    //update community, musics
+    @Transactional
+    public UserModel updateUser(Long id, String name,String city, List<String> musics, List<String> Communities) {
+        if (!StringUtils.hasText(name)) {
+            throw new IllegalArgumentException("User name is null or empty");
+        }
+        final Optional<UserModel> currentUserOpt = repo.findById(id);
+
+        if(currentUserOpt.isEmpty()) {
+            return null;
+        }
+
+        final UserModel currentUser = currentUserOpt.get();
+
+        currentUser.setName(name);
+        currentUser.setCity(city);
+        repo.save(currentUser);
+
+        updateMusics(id, musics);
+        return updateCommunities(id, Communities);
+    }
+    
+    @Transactional
+    public UserModel updateCommunities(Long userId , List<String> communities) {
+        final Optional<UserModel> userOpt = repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("UserModel with id [%s] is not found", userId));
+        }
+
+        UserModel user = userOpt.get();
+
+        user.deleteCommunities();
+
+        for(String c : communities) {
+            Community community = communityService.findByName(c);
+            user.addCommunity(community);
+        }
+        return repo.save(user);
+    }
+    @Transactional
+    public UserModel updateMusics(Long userId , List<String> musics) {
+        final Optional<UserModel> userOpt = repo.findById(userId);
+
+        if (userOpt.isEmpty()) {
+            throw new EntityNotFoundException(String.format("Music with id [%s] is not found", userId));
+        }
+
+        UserModel user = userOpt.get();
+
+        user.deleteMusics();
+
+        for(String m : musics) {
+            Music music = musicService.findByName(m);
+            user.addMusic(music);
+        }
+        return repo.save(user);
+    }
+
+
+    @Transactional
+    public UserModel deleteUser(Long id) {
+
+        final Optional<UserModel> currentUser = repo.findById(id);
+        if(currentUser.isEmpty()) {
+            return null;
+        }
+
+        repo.deleteById(id);
+        return currentUser.get();
+    }
+
+    @Transactional
+    public void deleteAllUsers() {
+        repo.deleteAll();
+    }
+
+
+}

src/main/resources/application.properties

@@ -0,0 +1,11 @@
+spring.main.banner-mode=off
+#server.port=8080
+spring.datasource.url=jdbc:h2:file:./data
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.jpa.hibernate.ddl-auto=update
+spring.h2.console.enabled=true
+spring.h2.console.settings.trace=false
+spring.h2.console.settings.web-allow-others=false

src/test/java/ru/ulstu/is/sbapp/JpaCommunityTest.java

@@ -0,0 +1,95 @@
+package ru.ulstu.is.sbapp;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.services.CommunityService;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+
+import javax.persistence.EntityNotFoundException;
+import java.util.List;
+
+@SpringBootTest
+public class JpaCommunityTest {
+    private static final Logger log = LoggerFactory.getLogger(JpaUserTest.class);
+    @Autowired
+    UserService userService;
+
+    @Autowired
+    CommunityService communityService;
+
+    @Test
+    void testUserCreate() {
+        communityService.deleteAllCommunities();
+        final Community community = communityService.addCommunity("CodeGPT");
+        log.info(community.toString());
+        Assertions.assertNotNull(community.getId());
+    }
+
+    @Test
+    void testUserReadNotFound() {
+        communityService.deleteAllCommunities();
+        Assertions.assertThrows(EntityNotFoundException.class, () -> communityService.findCommunity(-1L));
+    }
+
+    @Test
+    void findUser() {
+        communityService.deleteAllCommunities();
+        final Community community = communityService.addCommunity("CodeGPT");
+        log.info(community.toString());
+        final Community findCommunity = communityService.findCommunity(community.getId());
+        log.info(findCommunity.toString());
+        Assertions.assertEquals(community.toString(), findCommunity.toString());
+    }
+
+    @Test
+    void testReadAll() {
+        communityService.deleteAllCommunities();
+        userService.deleteAllUsers();
+        final Community community = communityService.addCommunity("CodeGPT");
+        log.info(community.toString());
+        final List<Community> communities = communityService.findAllCommunities();
+        Assertions.assertEquals(communities.size(), 1);
+    }
+
+    @Test
+    void updateCommunity() {
+        userService.deleteAllUsers();
+        communityService.deleteAllCommunities();
+        final Community community = communityService.addCommunity("CodeGPT 2");
+        communityService.updateCommunity(community.getId(), "CodeGPT 3");
+        final Community findCommunity = communityService.findCommunity(community.getId());
+        log.info(findCommunity.toString());
+        Assertions.assertEquals(findCommunity.getName(), "CodeGPT 3");
+    }
+
+    @Test
+    void deleteCommunity() {
+        userService.deleteAllUsers();
+        communityService.deleteAllCommunities();
+        final Community community = communityService.addCommunity("CodeGPT");
+        log.info(community.toString());
+        communityService.deleteCommunity(community.getId());
+        Assertions.assertThrows(EntityNotFoundException.class, () -> communityService.findCommunity(community.getId()));
+    }
+
+
+    @Test
+    void addUser() {
+        userService.deleteAllUsers();
+        communityService.deleteAllCommunities();
+        userService.findAllUsers();
+        final Community community = communityService.addCommunity("CodeGPT");
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        userService.addCommunity(user.getId(), community.getId());
+        final Community findCommunity = communityService.findCommunity(community.getId());
+        Assertions.assertEquals(findCommunity.getUsers().get(0).getId(), user.getId());
+    }
+}
+

src/test/java/ru/ulstu/is/sbapp/JpaMusicTest.java

@@ -0,0 +1,77 @@
+package ru.ulstu.is.sbapp;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.services.MusicService;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+
+import javax.persistence.EntityNotFoundException;
+import java.util.List;
+
+@SpringBootTest
+public class JpaMusicTest {
+    private static final Logger log = LoggerFactory.getLogger(JpaUserTest.class);
+    @Autowired
+    UserService userService;
+
+    @Autowired
+    MusicService musicService;
+
+    @Test
+    void testMusicCreate() {
+        musicService.deleteAllMusics();
+        final Music music = musicService.addMusic("Song");
+        log.info(music.toString());
+        Assertions.assertNotNull(music.getId());
+    }
+
+    @Test
+    void testMusicReadNotFound() {
+        musicService.deleteAllMusics();
+        Assertions.assertThrows(EntityNotFoundException.class, () -> musicService.findMusic(-1L));
+    }
+
+    @Test
+    void findMusic() {
+        musicService.deleteAllMusics();
+        final Music music = musicService.addMusic("Song");
+        log.info(musicService.toString());
+        final Music findMusic = musicService.findMusic(music.getId());
+        log.info(findMusic.toString());
+        Assertions.assertEquals(music.toString(), findMusic.toString());
+    }
+
+    @Test
+    void testReadAll() {
+        musicService.deleteAllMusics();
+        final Music music = musicService.addMusic("Song");
+        log.info(music.toString());
+        final List<Music> musics = musicService.findAllMusics();
+        Assertions.assertEquals(musics.size(), 1);
+    }
+
+    @Test
+    void updateMusic() {
+        musicService.deleteAllMusics();
+        final Music music = musicService.addMusic("Song");
+        musicService.updateMusic(music.getId(), "Song 2");
+        final Music findMusic = musicService.findMusic(music.getId());
+        log.info(findMusic.toString());
+        Assertions.assertEquals(findMusic.getName(), "Song 2");
+    }
+
+    @Test
+    void deleteMusic() {
+        musicService.deleteAllMusics();
+        final Music music = musicService.addMusic("Song");
+        log.info(music.toString());
+        musicService.deleteMusic(music.getId());
+        Assertions.assertThrows(EntityNotFoundException.class, () -> userService.findUser(music.getId()));
+    }
+}
+

src/test/java/ru/ulstu/is/sbapp/JpaUserTest.java

@@ -0,0 +1,113 @@
+package ru.ulstu.is.sbapp;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import ru.ulstu.is.sbapp.socialNetwork.models.Community;
+import ru.ulstu.is.sbapp.socialNetwork.models.Music;
+import ru.ulstu.is.sbapp.socialNetwork.models.UserModel;
+import ru.ulstu.is.sbapp.socialNetwork.services.CommunityService;
+import ru.ulstu.is.sbapp.socialNetwork.services.MusicService;
+import ru.ulstu.is.sbapp.socialNetwork.services.UserService;
+
+import javax.persistence.EntityNotFoundException;
+import java.util.List;
+
+@SpringBootTest
+public class JpaUserTest {
+    private static final Logger log = LoggerFactory.getLogger(JpaUserTest.class);
+    @Autowired
+    UserService userService;
+
+    @Autowired
+    MusicService musicService;
+
+    @Autowired
+    CommunityService communityService;
+
+    @Test
+    void testUserCreate() {
+        userService.deleteAllUsers();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        log.info(user.toString());
+        Assertions.assertNotNull(user.getId());
+    }
+
+    @Test
+    void testUserReadNotFound() {
+        userService.deleteAllUsers();
+        Assertions.assertThrows(EntityNotFoundException.class, () -> userService.findUser(-1L));
+    }
+
+    @Test
+    void findUser() {
+        userService.deleteAllUsers();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        log.info(user.toString());
+        final UserModel findUser = userService.findUser(user.getId());
+        log.info(findUser.toString());
+        Assertions.assertEquals(user.toString(), findUser.toString());
+    }
+
+    @Test
+    void updateUser() {
+        userService.deleteAllUsers();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        userService.updateUser(user.getId(), "its_mailov 2");
+        final UserModel findUser = userService.findUser(user.getId());
+        log.info(findUser.toString());
+        Assertions.assertEquals(findUser.getName(), "its_mailov 2");
+
+    }
+
+    @Test
+    void testReadAll() {
+        userService.deleteAllUsers();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        log.info(user.toString());
+        final List<UserModel> users = userService.findAllUsers();
+        Assertions.assertEquals(users.size(), 1);
+    }
+
+    @Test
+    void deleteUser() {
+        userService.deleteAllUsers();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        log.info(user.toString());
+        userService.deleteUser(user.getId());
+        Assertions.assertThrows(EntityNotFoundException.class, () -> userService.findUser(user.getId()));
+    }
+
+
+
+
+    @Test
+    void addMusic() {
+        userService.deleteAllUsers();
+        musicService.deleteAllMusics();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        final Music music = musicService.addMusic("Song");
+
+        userService.addMusic(user.getId(), music.getId());
+
+        final UserModel findUser = userService.findUser(user.getId());
+        Assertions.assertEquals(findUser.getMusics().get(0).toString(), music.toString());
+    }
+
+    @Test
+    void addGroup() {
+        userService.deleteAllUsers();
+        musicService.deleteAllMusics();
+        final UserModel user = userService.addUser("its_mailov", "Moscow");
+        final Community community = communityService.addCommunity("GPT");
+
+        userService.addCommunity(user.getId(), community.getId());
+
+        final UserModel findUser = userService.findUser(user.getId());
+        Assertions.assertEquals(findUser.getGroups().get(0).getId(), community.getId());
+
+    }
+}

src/test/java/ru/ulstu/is/sbapp/SbappApplicationTests.java

@@ -0,0 +1,78 @@
+package ru.ulstu.is.sbapp;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import ru.ulstu.is.sbapp.calculator.service.CalculatorService;
+
+
+@SpringBootTest
+class SbappApplicationTests {
+
+	@Autowired
+	CalculatorService calculatorService;
+
+	@Test
+	void contextLoads() {
+	}
+	@Test
+	void testPlusInt() {
+		final String res = calculatorService.Sum(10, 10, "int");
+		Assertions.assertEquals(20, Integer.parseInt(res));
+	}
+	@Test
+	void testMinusInt() {
+		final String res = calculatorService.Ras(8, 4, "int");
+		Assertions.assertEquals(4, Integer.parseInt(res));
+	}
+	@Test
+	void testReverseInt() {
+		final String res = calculatorService.Rev(10, 10, "int");
+		Assertions.assertEquals(-20, Integer.parseInt(res));
+	}
+	@Test
+	void testComparisonInt() {
+		final String res = calculatorService.Com(8, 4, "int");
+		Assertions.assertEquals(8, Integer.parseInt(res));
+	}
+	@Test
+	void testPlusStr() {
+		final String res = calculatorService.Sum("10", "10", "string");
+		Assertions.assertEquals("1010", res);
+	}
+	@Test
+	void testMinusStr() {
+		final String res = calculatorService.Ras("846734", "4", "string");
+		Assertions.assertEquals("8673", res);
+	}
+	@Test
+	void testReverseStr() {
+		final String res = calculatorService.Rev("846734", "312", "string");
+		Assertions.assertEquals("213437648", res);
+	}
+	@Test
+	void testComparisonStr() {
+		final String res = calculatorService.Com("846734", "312", "string");
+		Assertions.assertEquals("846734", res);
+	}
+	@Test
+	void testNumberFormatException() {
+		Assertions.assertThrows(NumberFormatException.class, () -> calculatorService.Sum("п", 3, "int"));
+	}
+	@Test
+	void testSumDate(){
+		final String res = calculatorService.Sum("2023-07-07", "0001-01-03", "date");
+		Assertions.assertEquals("2024-08-10", res);
+	}
+	@Test
+	void testRasDate(){
+		final String res = calculatorService.Ras("2023-07-07", "2020-01-03", "date");
+		Assertions.assertEquals("0003-06-04", res);
+	}
+	@Test
+	void testComDate(){
+		final String res = calculatorService.Com("2023-07-07", "2020-01-03", "date");
+		Assertions.assertEquals("2023-07-07", res);
+	}
+}