package model

import (
	"context"
	"fmt"
	"strings"

	"github.com/zeromicro/go-zero/core/stores/sqlx"
)

var _ PurPurchaseOrderDetailModel = (*customPurPurchaseOrderDetailModel)(nil)

type (
	PurPurchaseOrderDetailModel interface {
		purPurchaseOrderDetailModel
		FindByOrderId(ctx context.Context, orderId string) ([]*PurPurchaseOrderDetail, error)
		DeleteByOrderId(ctx context.Context, orderId string) error
		BulkInsert(ctx context.Context, details []*PurPurchaseOrderDetail) error
		UpdateReceivedQty(ctx context.Context, detailId string, addQty float64) error
	}

	customPurPurchaseOrderDetailModel struct {
		*defaultPurPurchaseOrderDetailModel
	}
)

func NewPurPurchaseOrderDetailModel(conn sqlx.SqlConn) PurPurchaseOrderDetailModel {
	return &customPurPurchaseOrderDetailModel{
		defaultPurPurchaseOrderDetailModel: newPurPurchaseOrderDetailModel(conn),
	}
}

func (m *customPurPurchaseOrderDetailModel) FindByOrderId(ctx context.Context, orderId string) ([]*PurPurchaseOrderDetail, error) {
	var list []*PurPurchaseOrderDetail
	query := fmt.Sprintf("SELECT %s FROM %s WHERE order_id = ?", purPurchaseOrderDetailRows, m.table)
	if err := m.conn.QueryRowsCtx(ctx, &list, query, orderId); err != nil {
		return nil, err
	}
	return list, nil
}

func (m *customPurPurchaseOrderDetailModel) DeleteByOrderId(ctx context.Context, orderId string) error {
	query := fmt.Sprintf("DELETE FROM %s WHERE order_id = ?", m.table)
	_, err := m.conn.ExecCtx(ctx, query, orderId)
	return err
}

func (m *customPurPurchaseOrderDetailModel) BulkInsert(ctx context.Context, details []*PurPurchaseOrderDetail) error {
	if len(details) == 0 {
		return nil
	}
	placeholder := "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"
	placeholders := make([]string, len(details))
	args := make([]interface{}, 0, len(details)*12)
	for i, d := range details {
		placeholders[i] = placeholder
		args = append(args, d.DetailId, d.TenantId, d.OrderId, d.ProductId, d.ProductName, d.Spec,
			d.Color, d.Quantity, d.UnitPrice, d.Amount, d.ReceivedQty, d.Remark)
	}
	query := fmt.Sprintf("INSERT INTO %s (%s) VALUES %s", m.table, purPurchaseOrderDetailRowsExpectAutoSet, strings.Join(placeholders, ","))
	_, err := m.conn.ExecCtx(ctx, query, args...)
	return err
}

func (m *customPurPurchaseOrderDetailModel) UpdateReceivedQty(ctx context.Context, detailId string, addQty float64) error {
	query := fmt.Sprintf("UPDATE %s SET received_qty = received_qty + ? WHERE detail_id = ?", m.table)
	_, err := m.conn.ExecCtx(ctx, query, addQty, detailId)
	return err
}