Lab 05: add remote keys

.idea/deploymentTargetDropDown.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <targetSelectedWithDropDown>
+      <Target>
+        <type value="QUICK_BOOT_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="C:\Users\Андрей\.android\avd\Pixel_7_Pro_API_30.avd" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </targetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2023-12-05T19:20:06.168865100Z" />
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,41 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>

app/build.gradle.kts

@@ -10,7 +10,7 @@ android {
 
     defaultConfig {
         applicationId = "com.example.mobile_labs"
-        minSdk = 26
+        minSdk = 30
         targetSdk = 33
         versionCode = 1
         versionName = "1.0"

app/src/main/java/com/example/mobile_labs/database/AppDatabase.kt

@@ -13,6 +13,8 @@ import com.example.mobile_labs.database.performance.model.Performance
 import com.example.mobile_labs.database.performance.model.PerformancePersonCrossRef
 import com.example.mobile_labs.database.person.dao.PersonDao
 import com.example.mobile_labs.database.person.model.Person
+import com.example.mobile_labs.database.remotekeys.dao.RemoteKeysDao
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeys
 import com.example.mobile_labs.user.dao.UserDao
 import com.example.mobile_labs.user.model.User
 import kotlinx.coroutines.CoroutineScope
@@ -20,13 +22,14 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import java.time.LocalDate
 
-@Database(entities = [Performance::class, Person::class, Event::class, PerformancePersonCrossRef::class, User::class], version = 1, exportSchema = false)
+@Database(entities = [Performance::class, Person::class, Event::class, PerformancePersonCrossRef::class, User::class, RemoteKeys::class], version = 1, exportSchema = false)
 abstract class AppDatabase : RoomDatabase() {
     abstract fun personDao(): PersonDao
     abstract fun performanceDao(): PerformanceDao
     abstract fun eventDao(): EventDao
     abstract fun performancePersonDao(): PerformancePersonDao
     abstract fun userDao(): UserDao
+    abstract fun remoteKeysDao(): RemoteKeysDao
 
     companion object {
         private const val DB_NAME: String = "theatre-db"
@@ -102,14 +105,14 @@ abstract class AppDatabase : RoomDatabase() {
                     AppDatabase::class.java,
                     DB_NAME
                 )
-                    .addCallback(object : RoomDatabase.Callback() {
+//                    .addCallback(object : RoomDatabase.Callback() {
-                        override fun onCreate(db: SupportSQLiteDatabase) {
+//                        override fun onCreate(db: SupportSQLiteDatabase) {
-                            super.onCreate(db)
+//                            super.onCreate(db)
-                            CoroutineScope(Dispatchers.IO).launch {
+//                            CoroutineScope(Dispatchers.IO).launch {
-                                populateDatabase()
+//                                populateDatabase()
-                            }
+//                            }
-                        }
+//                        }
-                    })
+//                    })
                     .build()
                     .also { INSTANCE = it }
             }

app/src/main/java/com/example/mobile_labs/database/remotekeys/dao/RemoteKeysDao.kt

@@ -0,0 +1,20 @@
+package com.example.mobile_labs.database.remotekeys.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeyType
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeys
+
+@Dao
+interface RemoteKeysDao {
+    @Query("SELECT * FROM remote_keys WHERE entityId = :entityId AND type = :type")
+    suspend fun getRemoteKeys(entityId: Int, type: RemoteKeyType): RemoteKeys?
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertAll(remoteKey: List<RemoteKeys>)
+
+    @Query("DELETE FROM remote_keys WHERE type = :type")
+    suspend fun clearRemoteKeys(type: RemoteKeyType)
+}

app/src/main/java/com/example/mobile_labs/database/remotekeys/model/RemoteKeys.kt

@@ -0,0 +1,30 @@
+package com.example.mobile_labs.database.remotekeys.model
+
+import android.app.Person
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import androidx.room.TypeConverter
+import androidx.room.TypeConverters
+import com.example.mobile_labs.database.event.model.Event
+import com.example.mobile_labs.database.performance.model.Performance
+
+enum class RemoteKeyType(private val type: String) {
+    PERSON(Person::class.simpleName ?: "Person"),
+    EVENT(Event::class.simpleName ?: "Event"),
+    PERFORMANCE(Performance::class.simpleName ?: "Performances");
+
+    @TypeConverter
+    fun toRemoteKeyType(value: String) = RemoteKeyType.values().first { it.type == value }
+
+    @TypeConverter
+    fun fromRemoteKeyType(value: RemoteKeyType) = value.type
+}
+
+@Entity(tableName = "remote_keys")
+data class RemoteKeys(
+    @PrimaryKey val entityId: Int,
+    @TypeConverters(RemoteKeyType::class)
+    val type: RemoteKeyType,
+    val prevKey: Int?,
+    val nextKey: Int?
+)

app/src/main/java/com/example/mobile_labs/database/remotekeys/repository/OfflineRemoteKeyRepository.kt

@@ -0,0 +1,16 @@
+package com.example.mobile_labs.database.remotekeys.repository
+
+import com.example.mobile_labs.database.remotekeys.dao.RemoteKeysDao
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeyType
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeys
+
+class OfflineRemoteKeyRepository(private val remoteKeysDao: RemoteKeysDao) : RemoteKeyRepository {
+    override suspend fun getAllRemoteKeys(id: Int, type: RemoteKeyType) =
+        remoteKeysDao.getRemoteKeys(id, type)
+
+    override suspend fun createRemoteKeys(remoteKeys: List<RemoteKeys>) =
+        remoteKeysDao.insertAll(remoteKeys)
+
+    override suspend fun deleteRemoteKey(type: RemoteKeyType) =
+        remoteKeysDao.clearRemoteKeys(type)
+}

app/src/main/java/com/example/mobile_labs/database/remotekeys/repository/RemoteKeyRepository.kt

@@ -0,0 +1,10 @@
+package com.example.mobile_labs.database.remotekeys.repository
+
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeyType
+import com.example.mobile_labs.database.remotekeys.model.RemoteKeys
+
+interface RemoteKeyRepository {
+    suspend fun getAllRemoteKeys(id: Int, type: RemoteKeyType): RemoteKeys?
+    suspend fun createRemoteKeys(remoteKeys: List<RemoteKeys>)
+    suspend fun deleteRemoteKey(type: RemoteKeyType)
+}