Feat Varios 3

src/SIGCM.Infrastructure/Repositories/CouponRepository.cs

@@ -0,0 +1,63 @@
+using Dapper;
+using SIGCM.Domain.Entities;
+using SIGCM.Domain.Interfaces;
+using SIGCM.Infrastructure.Data;
+
+namespace SIGCM.Infrastructure.Repositories;
+
+public class CouponRepository : ICouponRepository
+{
+    private readonly IDbConnectionFactory _connectionFactory;
+
+    public CouponRepository(IDbConnectionFactory connectionFactory)
+    {
+        _connectionFactory = connectionFactory;
+    }
+
+    public async Task<IEnumerable<Coupon>> GetAllAsync()
+    {
+        using var conn = _connectionFactory.CreateConnection();
+        return await conn.QueryAsync<Coupon>("SELECT * FROM Coupons ORDER BY CreatedAt DESC");
+    }
+
+    public async Task<int> CreateAsync(Coupon coupon)
+    {
+        using var conn = _connectionFactory.CreateConnection();
+        var sql = @"
+            INSERT INTO Coupons (Code, DiscountType, DiscountValue, ExpiryDate, MaxUsages, MaxUsagesPerUser, IsActive, CreatedAt)
+            VALUES (@Code, @DiscountType, @DiscountValue, @ExpiryDate, @MaxUsages, @MaxUsagesPerUser, @IsActive, GETUTCDATE());
+            SELECT CAST(SCOPE_IDENTITY() as int);";
+        return await conn.QuerySingleAsync<int>(sql, coupon);
+    }
+
+    public async Task DeleteAsync(int id)
+    {
+        using var conn = _connectionFactory.CreateConnection();
+        await conn.ExecuteAsync("DELETE FROM Coupons WHERE Id = @Id", new { Id = id });
+    }
+
+    public async Task<Coupon?> GetByCodeAsync(string code)
+    {
+        using var conn = _connectionFactory.CreateConnection();
+        return await conn.QuerySingleOrDefaultAsync<Coupon>(
+            "SELECT * FROM Coupons WHERE Code = @Code AND IsActive = 1", 
+            new { Code = code });
+    }
+
+    public async Task IncrementUsageAsync(int id)
+    {
+        using var conn = _connectionFactory.CreateConnection();
+        await conn.ExecuteAsync(
+            "UPDATE Coupons SET UsageCount = UsageCount + 1 WHERE Id = @Id", 
+            new { Id = id });
+    }
+
+    public async Task<int> CountUserUsageAsync(int userId, string couponCode)
+    {
+        using var conn = _connectionFactory.CreateConnection();
+        // Check listings for this user with this coupon code
+        // Note: CouponCode column was added to Listings
+        var sql = "SELECT COUNT(1) FROM Listings WHERE UserId = @UserId AND CouponCode = @CouponCode";
+        return await conn.ExecuteScalarAsync<int>(sql, new { UserId = userId, CouponCode = couponCode });
+    }
+}