package api

import (
	"database/sql"
	"net/http"

	db "git.nochill.in/nochill/naice_pos/db/sqlc"
	"git.nochill.in/nochill/naice_pos/util"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"github.com/lib/pq"
)

type createSaleOrderRequest struct {
	MerchantID  uuid.UUID             `json:"merchant_id" binding:"required"`
	MerchantIDX int64                 `json:"merchant_index" binding:"required"`
	CustomerID  string                `json:"customer_id"`
	CreatedBy   uuid.UUID             `json:"created_by" binding:"required"`
	Code        string                `json:"code"`
	IsPaid      bool                  `json:"is_paid" binding:"required"`
	Total       float64               `json:"total" binding:"required"`
	PaidNominal float64               `json:"paid_nominal" binding:"required"`
	Change      float64               `json:"change"`
	Note        string                `json:"note"`
	IsKeep      bool                  `json:"is_keep"`
	Products    []db.SaleOrderProduct `json:"products" binding:"required"`
}

func (server Server) createSaleOrder(ctx *gin.Context) {
	var req createSaleOrderRequest

	code := util.RandomTransactionCode("S", req.MerchantIDX)
	customerID := uuid.NullUUID{Valid: false, UUID: uuid.Nil}

	if err := ctx.ShouldBindJSON(&req); err != nil {
		ctx.JSON(http.StatusBadRequest, errorResponse(err, ""))
		return
	}

	if len(req.CustomerID) > 0 {
		customerID = uuid.NullUUID{Valid: true, UUID: uuid.MustParse(req.CustomerID)}
	}

	if len(req.Code) > 0 {
		code = req.Code
	}

	arg := db.SaleOrderTxParams{
		MerchantID:  req.MerchantID,
		CreatedBy:   req.CreatedBy,
		CustomerID:  customerID,
		Code:        code,
		IsPaid:      req.IsPaid,
		Total:       req.Total,
		PaidNominal: req.PaidNominal,
		Note:        sql.NullString{Valid: len(req.Note) > 0, String: req.Note},
		IsKeep:      req.IsKeep,
		Change:      req.Change,
		Products:    req.Products,
	}

	result, err := server.store.SaleOrderTx(ctx, arg)
	if err != nil {

		if pqErr, ok := err.(*pq.Error); ok {
			switch pqErr.Code.Name() {
			case "check_violation":
				ctx.JSON(http.StatusConflict, errorResponse(err, "Stok tidak bisa kurang dari 0"))
				return
			}
		}

		ctx.JSON(http.StatusInternalServerError, errorResponse(err, ""))
		return
	}

	ctx.JSON(http.StatusOK, result)
}