102 lines
2.7 KiB
C#
102 lines
2.7 KiB
C#
using data.LocalData;
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using data.Repository;
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using domain.Models;
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namespace domain.UseCase
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{
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public class GroupUseCase
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{
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private readonly IGroupRepository _repositoryGroupImpl;
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public GroupUseCase(IGroupRepository repositoryGroupImpl)
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{
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_repositoryGroupImpl = repositoryGroupImpl;
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}
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private GroupLocalEntity ValidateGroupExistence(int groupId)
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{
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var existingGroup = _repositoryGroupImpl.GetAllGroup()
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.FirstOrDefault(g => g.Id == groupId);
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if (existingGroup == null)
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{
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throw new ArgumentException("Группа не найдена.");
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}
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return existingGroup;
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}
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public List<Group> GetAllGroups()
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{
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return [.. _repositoryGroupImpl.GetAllGroup()
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.Select(it => new Group { Id = it.Id, Name = it.Name })];
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}
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public Group FindGroupById(int groupId)
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{
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var group = GetAllGroups().FirstOrDefault(g => g.Id == groupId);
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if (group == null)
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{
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throw new ArgumentException("Группа не найдена.");
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}
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return group;
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}
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public void AddGroup(string groupName)
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{
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var newId = _repositoryGroupImpl.GetAllGroup().Any()
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? _repositoryGroupImpl.GetAllGroup().Max(g => g.Id) + 1
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: 1;
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GroupLocalEntity newGroup = new GroupLocalEntity
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{
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Id = newId,
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Name = groupName
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};
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_repositoryGroupImpl.AddGroup(newGroup);
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}
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public void RemoveGroupById(int groupId)
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{
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var existingGroup = ValidateGroupExistence(groupId);
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List<Group> _groups = GetAllGroups();
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// Находим группу по ID и удаляем ее
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var groupToRemove = _groups.FirstOrDefault(g => g.Id == existingGroup.Id);
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if (groupToRemove != null)
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{
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_groups.Remove(groupToRemove);
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_repositoryGroupImpl.RemoveGroupById(existingGroup.Id);
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}
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else
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{
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throw new ArgumentException("Группа не найдена.");
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}
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}
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// Метод для изменения названия группы
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public void UpdateGroup(int groupId, string newGroupName)
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{
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var existingGroup = ValidateGroupExistence(groupId);
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existingGroup.Name = newGroupName;
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_repositoryGroupImpl.UpdateGroupById(existingGroup.Id, existingGroup);
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}
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}
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} |