using Microsoft.EntityFrameworkCore;
using SPMS.Domain.Entities;
using SPMS.Domain.Enums;
using SPMS.Domain.Interfaces;

namespace SPMS.Infrastructure.Persistence.Repositories;

public class AdminRepository : Repository<Admin>, IAdminRepository
{
    public AdminRepository(AppDbContext context) : base(context)
    {
    }

    public async Task<Admin?> GetByEmailAsync(string email)
    {
        return await _dbSet
            .FirstOrDefaultAsync(a => a.Email == email && !a.IsDeleted);
    }

    public async Task<Admin?> GetByAdminCodeAsync(string adminCode)
    {
        return await _dbSet
            .FirstOrDefaultAsync(a => a.AdminCode == adminCode && !a.IsDeleted);
    }

    public async Task<Admin?> GetByRefreshTokenAsync(string refreshToken)
    {
        return await _dbSet
            .FirstOrDefaultAsync(a => a.RefreshToken == refreshToken && !a.IsDeleted);
    }

    public async Task<bool> EmailExistsAsync(string email, long? excludeId = null)
    {
        var query = _dbSet.Where(a => a.Email == email && !a.IsDeleted);

        if (excludeId.HasValue)
            query = query.Where(a => a.Id != excludeId.Value);

        return await query.AnyAsync();
    }

    public async Task<(IReadOnlyList<Admin> Items, int TotalCount)> GetOperatorPagedAsync(
        int page, int size, AdminRole? roleFilter, bool? isActive)
    {
        IQueryable<Admin> query;

        if (isActive.HasValue)
        {
            // IgnoreQueryFilters로 삭제된 운영자도 조회 가능
            query = _context.Set<Admin>().IgnoreQueryFilters();

            if (isActive.Value)
                query = query.Where(a => !a.IsDeleted);
            else
                query = query.Where(a => a.IsDeleted);
        }
        else
        {
            // 기본: 글로벌 필터 적용 (활성 운영자만)
            query = _dbSet.AsQueryable();
        }

        // Super Admin 제외
        query = query.Where(a => a.Role != AdminRole.Super);

        // Role 필터
        if (roleFilter.HasValue)
            query = query.Where(a => a.Role == roleFilter.Value);

        var totalCount = await query.CountAsync();

        var items = await query
            .OrderByDescending(a => a.CreatedAt)
            .Skip((page - 1) * size)
            .Take(size)
            .ToListAsync();

        return (items, totalCount);
    }
}