using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using TakeoutSaaS.Domain.Identity.Entities;
using TakeoutSaaS.Domain.Identity.Repositories;

namespace TakeoutSaaS.Infrastructure.Identity.Persistence;

/// <summary>
/// EF Core 后台用户仓储实现。
/// </summary>
public sealed class EfIdentityUserRepository(IdentityDbContext dbContext) : IIdentityUserRepository
{

    public Task<IdentityUser?> FindByAccountAsync(string account, CancellationToken cancellationToken = default)
        => dbContext.IdentityUsers.AsNoTracking().FirstOrDefaultAsync(x => x.Account == account, cancellationToken);

    public Task<IdentityUser?> FindByIdAsync(long userId, CancellationToken cancellationToken = default)
        => dbContext.IdentityUsers.AsNoTracking().FirstOrDefaultAsync(x => x.Id == userId, cancellationToken);

    public async Task<IReadOnlyList<IdentityUser>> SearchAsync(long tenantId, string? keyword, CancellationToken cancellationToken = default)
    {
        var query = dbContext.IdentityUsers
            .AsNoTracking()
            .Where(x => x.TenantId == tenantId);

        if (!string.IsNullOrWhiteSpace(keyword))
        {
            var normalized = keyword.Trim();
            query = query.Where(x => x.Account.Contains(normalized) || x.DisplayName.Contains(normalized));
        }

        return await query.ToListAsync(cancellationToken);
    }
}