IM_NEW/GroupService.Infrastructure/Reposities/GroupMemberReposity.cs

using GroupService.Domain.Entities;
using GroupService.Domain.IReposities;
using Microsoft.EntityFrameworkCore;

namespace GroupService.Infrastructure.Reposities
{
    public class GroupMemberReposity : IGroupMemberReposity
    {
        private readonly GroupDbContext db;

        public GroupMemberReposity(GroupDbContext db)
        {
            this.db = db;
        }

        public async Task<bool> CheckMemberExistAsync(Guid groupId, Guid userId)
        {
            return await db.GroupMembers.AnyAsync(x => x.UserId == userId &&
                x.GroupId == groupId
            );
        }

        public GroupMember Create(GroupMember member)
        {
            db.GroupMembers.Add(member);
            return member;
        }

        public async Task<IEnumerable<GroupMember>> FindByGroupIdAsync(Guid groupId)
        {
            return await db.GroupMembers.Where(x => x.GroupId == groupId).ToListAsync();
        }
        public async Task<GroupMember?> FindOneByGroupIdAndUserIdAsync(Guid groupId, Guid userId)
        {
            return await db.GroupMembers.FirstOrDefaultAsync(x => x.UserId == userId
                && x.GroupId == groupId
            );
        }

        public async Task<IEnumerable<GroupMember>> FindByUserIdAsync(Guid userId)
        {
            return await db.GroupMembers.Where(x => x.UserId == userId).ToListAsync();
        }

        public async Task<GroupMember?> FindByIdAsync(Guid id)
        {
            return await db.GroupMembers.FirstOrDefaultAsync(x => x.Id == id);
        }

        public async Task<bool> CheckMemberAdminAsync(Guid groupId, Guid userId)
        {
            return await db.GroupMembers.AnyAsync(
                x => x.GroupId == groupId && x.UserId == userId
                && (x.Role == Domain.Enums.GroupMemberRole.Administrator 
                || x.Role == Domain.Enums.GroupMemberRole.Master)
                );
        }

        public void CreateRange(IEnumerable<GroupMember> members)
        {
            db.GroupMembers.AddRange(members);
        }
    }
}