/** @odoo-module **/

import { patch } from "@web/core/utils/patch";

import { Orderline } from "@point_of_sale/app/components/orderline/orderline";

import { useEffect } from "@odoo/owl";

import { usePos } from "@point_of_sale/app/hooks/pos_hook";

import { useService } from "@web/core/utils/hooks";

import { _t } from "@web/core/l10n/translation";

import { rpc } from "@web/core/network/rpc";

import { CustomDiscountLimitPopup } from "./discount_popup";

patch(Orderline.prototype, {

  setup() {

    super.setup();

    this.pos = usePos();

    this.dialog = useService("dialog");

    this.notification = useService("notification");

    const checkDiscountLimit = async () => {

      const currentOrder = this.pos.getOrder();

      const isRefund = currentOrder

        .getOrderlines()

        .some((l) => l.getQuantity() < 0);

      const screen = this.pos.router.state.current;

      if (screen !== "ProductScreen" || isRefund) return;

      if (!this.pos.config?.access_discount_limit) return;

      const orderline = currentOrder?.getSelectedOrderline();

      const discountAmount = parseFloat(orderline?.discount || 0);

      const limit = parseFloat(this.pos.config?.discount_limit || 0);

      if (!orderline) return;

      if (limit > 0 && discountAmount > limit) {

        this.dialog.add(CustomDiscountLimitPopup, {

          title: _t("Discount Limit Exceeded"),

          body: _t(

            "The discount amount %(discount)s exceeds the allowed limit of %(limit)s. Please enter approval pin.",

            { discount: discountAmount, limit }

          ),

          confirm: async (password) => {

            try {

              const employee = await rpc("/pos/check_employee_pin", {

                pin: password,

              });

              if (employee && employee.discount_approval) {

                this.notification.add(

                  _t(`Discount approved by ${employee.name}`),

                  { type: "success" }

                );

              } else {

                this.notification.add(

                  _t("You do not have approval for this discount."),

                  { type: "danger" }

                );

                this.pos.numberBuffer.reset();

                orderline.setDiscount(0);

                this.pos.setDiscountFromUI(orderline, 0);

              }

            } catch (err) {

              console.error("RPC error:", err);

              this.notification.add(_t("Server error."), { type: "danger" });

              this.pos.numberBuffer.reset();

              orderline.setDiscount(0);

              this.pos.setDiscountFromUI(orderline, 0);

            }

          },

          cancel: () => {

            this.pos.numberBuffer.reset();

            orderline.setDiscount(0);

            this.pos.setDiscountFromUI(orderline, 0);

          },

        });

      }

    };

    useEffect(

      () => {

        if (this.pos.config.access_discount_limit) {

          checkDiscountLimit();

        }

      },

      () => [this.props.line?.discount]

    );

  },

});