using Fengling.Member.Domain.Aggregates.PointsModel;
using Microsoft.EntityFrameworkCore;

namespace Fengling.Member.Infrastructure.Repositories;

/// <summary>
/// 积分历史仓储实现
/// </summary>
public class PointsHistoryRepository : IPointsHistoryRepository
{
    private readonly ApplicationDbContext _context;

    public PointsHistoryRepository(ApplicationDbContext context)
    {
        _context = context;
    }

    public async Task<bool> ExistsBySourceIdAsync(string sourceId, CancellationToken cancellationToken = default)
    {
        return await _context.PointsTransactions
            .AnyAsync(t => t.SourceId == sourceId, cancellationToken);
    }

    public async Task<IEnumerable<PointsTransaction>> GetByMemberIdAsync(
        long memberId, 
        int page = 1, 
        int pageSize = 20, 
        CancellationToken cancellationToken = default)
    {
        return await _context.PointsTransactions
            .Where(t => t.MemberId == memberId)
            .OrderByDescending(t => t.CreatedAt)
            .Skip((page - 1) * pageSize)
            .Take(pageSize)
            .ToListAsync(cancellationToken);
    }

    public async Task<int> CountByMemberIdAsync(long memberId, CancellationToken cancellationToken = default)
    {
        return await _context.PointsTransactions
            .CountAsync(t => t.MemberId == memberId, cancellationToken);
    }

    public async Task<PointsTransaction?> GetByIdAsync(long id, CancellationToken cancellationToken = default)
    {
        return await _context.PointsTransactions.FindAsync(new object[] { id }, cancellationToken);
    }

    public async Task AddAsync(PointsTransaction transaction, CancellationToken cancellationToken = default)
    {
        _context.PointsTransactions.Add(transaction);
        await _context.SaveChangesAsync(cancellationToken);
    }
}