package queries

import (
	"bssapp-backend/models"
	"context"
)

func GetCustomerBalanceList(
	ctx context.Context,
	params models.CustomerBalanceListParams,
) ([]models.CustomerBalanceListRow, error) {

	//------------------------------------------------
	// 1️⃣ DATA ÇEK
	//------------------------------------------------

	balances, err := getFastBalances(ctx, params.SelectedDate)
	if err != nil {
		return nil, err
	}

	masterMap, err := getCariMasterMap(ctx)
	if err != nil {
		return nil, err
	}

	//------------------------------------------------
	// 2️⃣ MERGE
	//------------------------------------------------

	resultMap := make(map[string]*models.CustomerBalanceListRow)

	for _, b := range balances {

		key := b.CariKodu + "|" + b.CariDoviz

		r, ok := resultMap[key]
		if !ok {

			r = &models.CustomerBalanceListRow{
				CariKodu:  b.CariKodu,
				CariDoviz: b.CariDoviz,
			}

			// Master
			if m, ok := masterMap[b.CariKodu]; ok {

				r.CariDetay = m.CariDetay
				r.Piyasa = m.Piyasa
				r.Temsilci = m.Temsilci

				r.Ozellik03 = m.Ozellik03
				r.Ozellik05 = m.Ozellik05
				r.Ozellik06 = m.Ozellik06
				r.Ozellik07 = m.Ozellik07
				r.CariIlkGrup = m.Ozellik08
			}

			resultMap[key] = r
		}

		//------------------------------------------------
		// 3️⃣ TOPLA
		//------------------------------------------------

		if b.PislemTipi == "1_2" {

			r.Bakiye12 += b.Bakiye
			r.TLBakiye12 += b.KurBakiye
			r.USDBakiye12 += b.KurBakiye / b.UsdKur

		} else if b.PislemTipi == "1_3" {

			r.Bakiye13 += b.Bakiye
			r.TLBakiye13 += b.KurBakiye
			r.USDBakiye13 += b.KurBakiye / b.UsdKur
		}
	}

	//------------------------------------------------
	// 4️⃣ SLICE DÖN
	//------------------------------------------------

	out := make([]models.CustomerBalanceListRow, 0, len(resultMap))

	for _, v := range resultMap {
		out = append(out, *v)
	}

	return out, nil
}