package routes

import (
	"bssapp-backend/models"
	"bssapp-backend/queries"
	"database/sql"
	"encoding/json"
	"log"
	"net/http"

	"github.com/gorilla/mux"
)

// ======================================================
// 📌 OrderProductionItemsRoute — U ürün satırları
// ======================================================
func OrderProductionItemsRoute(mssql *sql.DB) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

		w.Header().Set("Content-Type", "application/json; charset=utf-8")

		id := mux.Vars(r)["id"]
		if id == "" {
			http.Error(w, "OrderHeaderID bulunamadı", http.StatusBadRequest)
			return
		}

		rows, err := queries.GetOrderProductionItems(mssql, id)
		if err != nil {
			log.Printf("❌ SQL sorgu hatası: %v", err)
			http.Error(w, "Veritabanı hatası", http.StatusInternalServerError)
			return
		}
		defer rows.Close()

		list := make([]models.OrderProductionItem, 0, 100)

		for rows.Next() {
			var o models.OrderProductionItem
			if err := rows.Scan(
				&o.OrderHeaderID,
				&o.OrderLineID,
				&o.OldItemCode,
				&o.OldColor,
				&o.OldDim2,
				&o.OldDesc,
				&o.NewItemCode,
				&o.NewColor,
				&o.NewDim2,
				&o.NewDesc,
			); err != nil {
				log.Printf("⚠️ SCAN HATASI: %v", err)
				continue
			}
			list = append(list, o)
		}

		if err := rows.Err(); err != nil {
			log.Printf("⚠️ rows.Err(): %v", err)
		}

		if err := json.NewEncoder(w).Encode(list); err != nil {
			log.Printf("❌ encode error: %v", err)
		}
	})
}