121 lines
3.0 KiB
C#
121 lines
3.0 KiB
C#
using SchoolScheduleContracts.BindingModels;
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using SchoolScheduleContracts.BusinessLogicsContracts;
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using SchoolScheduleContracts.SearchModels;
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using SchoolScheduleContracts.StoragesContracts;
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using SchoolScheduleContracts.ViewModels;
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using SchoolScheduleDataModels.Enums;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace SchoolScheduleBusinessLogic
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{
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public class LessonLogic : ILessonLogic
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{
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private readonly ILessonStorage _lessonStorage;
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private readonly ISubjectStorage _subjectStorage;
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private readonly ITeacherStorage _teacherStorage;
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private readonly IGradeStorage _gradeStorage;
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private readonly IStudentStorage _studentStorage;
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public LessonLogic(ILessonStorage lessonStorage, ISubjectStorage subjectStorage, ITeacherStorage teacherStorage, IGradeStorage gradeStorage, IStudentStorage studentStorage)
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{
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_lessonStorage = lessonStorage;
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_subjectStorage = subjectStorage;
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_teacherStorage = teacherStorage;
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_gradeStorage = gradeStorage;
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_studentStorage = studentStorage;
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}
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public List<LessonViewModel> ReadList(LessonSearchModel? model)
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{
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var list = model == null ? _lessonStorage.GetFullList() :
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_lessonStorage.GetFilteredList(model);
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return list;
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}
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public LessonViewModel? ReadElement(LessonSearchModel model)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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var element = _lessonStorage.GetElement(model);
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return element;
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}
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public List<StudentViewModel> GetStudents(LessonSearchModel model)
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{
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var list = _studentStorage.GetFilteredList(new StudentSearchModel { GradeId = model.GradeId });
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return list;
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}
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public bool Create(LessonBindingModel model)
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{
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CheckModel(model);
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if (_lessonStorage.Insert(model) == null)
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{
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return false;
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}
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return true;
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}
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public bool Update(LessonBindingModel model)
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{
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CheckModel(model);
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if (_lessonStorage.Update(model) == null)
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{
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return false;
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}
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return true;
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}
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public bool Delete(LessonBindingModel model)
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{
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CheckModel(model, false);
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if (_lessonStorage.Delete(model) == null)
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{
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return false;
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}
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return true;
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}
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private void CheckModel(LessonBindingModel model, bool withParams =
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true)
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{
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if (model == null)
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{
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throw new ArgumentNullException(nameof(model));
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}
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if (!withParams)
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{
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return;
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}
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var element1 = _lessonStorage.GetElement(new LessonSearchModel
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{
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Date = model.Date,
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SchedulePlaceId = model.SchedulePlaceId,
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TeacherId = model.TeacherId
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});
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var element2 = _lessonStorage.GetElement(new LessonSearchModel
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{
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Date = model.Date,
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SchedulePlaceId = model.SchedulePlaceId,
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GradeId = model.GradeId
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});
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if (element1 != null)
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{
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throw new InvalidOperationException("У учителя уже есть урок в это время");
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}
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if (element2 != null)
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{
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throw new InvalidOperationException("У класса уже есть урок в это время");
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}
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}
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}
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}
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