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"
)

type CreatePurchaseOrderRequest struct {
	MerchantID  uuid.UUID                 `json:"merchant_id" binding:"required"`
	MerchantIdx int64                     `json:"merchant_index" binding:"required,number"`
	CreatedBy   uuid.UUID                 `json:"created_by" binding:"required"`
	SupplierID  uuid.UUID                 `json:"supplier_id" 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"`
	Note        string                    `json:"note"`
	Products    []db.PurchaseOrderProduct `json:"products" binding:"required"`
}

func (server Server) createPurchase(ctx *gin.Context) {
	var req CreatePurchaseOrderRequest
	var code sql.NullString

	if len(req.Code) > 0 {
		code = sql.NullString{Valid: true, String: req.Code}
	} else {
		code = sql.NullString{Valid: true, String: util.RandomTransactionCode("P", req.MerchantIdx)}
	}

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

	arg := db.PurchasoOrderTxParams{
		MerchantID:  req.MerchantID,
		CreatedBy:   req.CreatedBy,
		SupplierID:  req.SupplierID,
		Code:        code,
		IsPaid:      req.IsPaid,
		Total:       req.Total,
		PaidNominal: req.PaidNominal,
		Note:        sql.NullString{String: req.Note, Valid: len(req.Code) > 0},
		Products:    req.Products,
	}

	result, err := server.store.PurchaseOrderTx(ctx, arg)
	if err != nil {
		ctx.JSON(http.StatusInternalServerError, errorResponse(err, ""))
		return
	}

	ctx.JSON(http.StatusOK, result)
}