Add product features, Heleket crypto payments and order status icons.

internal/repository/price_history.go

@@ -0,0 +1,49 @@
+package repository
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"shop/internal/models"
+)
+
+type PriceHistoryRepository struct {
+	pool *pgxpool.Pool
+}
+
+func NewPriceHistoryRepository(pool *pgxpool.Pool) *PriceHistoryRepository {
+	return &PriceHistoryRepository{pool: pool}
+}
+
+func (r *PriceHistoryRepository) Record(ctx context.Context, productID int, price, salePrice float64) error {
+	_, err := r.pool.Exec(ctx, `
+		INSERT INTO product_price_history (product_id, price, sale_price)
+		VALUES ($1, $2, NULLIF($3, 0))
+	`, productID, price, salePrice)
+	return err
+}
+
+func (r *PriceHistoryRepository) ByProduct(ctx context.Context, productID int, limit int) ([]models.PriceHistoryEntry, error) {
+	rows, err := r.pool.Query(ctx, `
+		SELECT id, product_id, price, COALESCE(sale_price, 0), recorded_at
+		FROM product_price_history
+		WHERE product_id = $1
+		ORDER BY recorded_at DESC
+		LIMIT $2
+	`, productID, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var entries []models.PriceHistoryEntry
+	for rows.Next() {
+		var e models.PriceHistoryEntry
+		if err := rows.Scan(&e.ID, &e.ProductID, &e.Price, &e.SalePrice, &e.RecordedAt); err != nil {
+			return nil, err
+		}
+		entries = append(entries, e)
+	}
+	return entries, rows.Err()
+}