<template>
  <div class="main-content">
    <breadcumb :page="$t('product_sales_report')" :folder="$t('Reports')"/>
    <div v-if="isLoading" class="loading_page spinner spinner-primary mr-3"></div>

     <b-col md="12" class="text-center" v-if="!isLoading">
        <date-range-picker 
          v-model="dateRange" 
          :startDate="startDate" 
          :endDate="endDate" 
           @update="Submit_filter_dateRange"
          :locale-data="locale" > 

          <template v-slot:input="picker" style="min-width: 350px;">
              {{ picker.startDate.toJSON().slice(0, 10)}} - {{ picker.endDate.toJSON().slice(0, 10)}}
          </template>        
        </date-range-picker>
      </b-col>


    <div v-if="!isLoading">
      <vue-good-table
        mode="remote"
        :columns="columns"
        :totalRows="totalRows"
        :rows="rows"
        @on-page-change="onPageChange"
        @on-per-page-change="onPerPageChange"
        @on-sort-change="onSortChange"
        @on-search="onSearch"
        :search-options="{
        placeholder: $t('Search_this_table'),
        enabled: true,
      }"
       :group-options="{
          enabled: true,
          headerPosition: 'bottom',
        }"
       
        :pagination-options="{
        enabled: true,
        mode: 'records',
        nextLabel: 'next',
        prevLabel: 'prev',
      }"
        :styleClass="showDropdown?'tableOne table-hover vgt-table full-height':'tableOne table-hover vgt-table non-height'"
      >
        <template slot="table-row" slot-scope="props">
          <span v-if="props.column.field == 'total'">
            {{ formatPriceWithSymbol(currentUser && currentUser.currency, props.row.total, 2) }}
          </span>
          <span v-else>
            {{ props.formattedRow[props.column.field] }}
          </span>
        </template>
       
        <div slot="table-actions" class="mt-2 mb-3">
          <b-button variant="outline-info ripple m-1" size="sm" v-b-toggle.sidebar-right>
            <i class="i-Filter-2"></i>
            {{ $t("Filter") }}
          </b-button>
          <b-button @click="Sales_PDF()" size="sm" variant="outline-success ripple m-1">
            <i class="i-File-Copy"></i> PDF
          </b-button>
          <vue-excel-xlsx
              class="btn btn-sm btn-outline-danger ripple m-1"
              :data="sales"
              :columns="columns"
              :file-name="'sales'"
              :file-type="'xlsx'"
              :sheet-name="'sales'"
              >
              <i class="i-File-Excel"></i> EXCEL
          </vue-excel-xlsx>
         
        </div>

      </vue-good-table>
    </div>

    <!-- Sidebar Filter -->
    <b-sidebar id="sidebar-right" :title="$t('Filter')" bg-variant="white" right shadow>
      <div class="px-3 py-2">
        <b-row>

          <!-- Customer  -->
          <b-col md="12">
            <b-form-group :label="$t('Customer')">
              <v-select
                :reduce="label => label.value"
                :placeholder="$t('Choose_Customer')"
                v-model="Filter_Client"
                :options="customers.map(customers => ({label: customers.name, value: customers.id}))"
              />
            </b-form-group>
          </b-col>

          <!-- warehouse -->
          <b-col md="12">
            <b-form-group :label="$t('warehouse')">
              <v-select
                v-model="Filter_warehouse"
                :reduce="label => label.value"
                :placeholder="$t('Choose_Warehouse')"
                :options="warehouses.map(warehouses => ({label: warehouses.name, value: warehouses.id}))"
              />
            </b-form-group>
          </b-col>

          <b-col md="6" sm="12">
            <b-button
              @click="Get_Sales(serverParams.page)"
              variant="primary btn-block ripple m-1"
              size="sm"
            >
              <i class="i-Filter-2"></i>
              {{ $t("Filter") }}
            </b-button>
          </b-col>
          <b-col md="6" sm="12">
            <b-button @click="Reset_Filter()" variant="danger ripple btn-block m-1" size="sm">
              <i class="i-Power-2"></i>
              {{ $t("Reset") }}
            </b-button>
          </b-col>
        </b-row>
      </div>
    </b-sidebar>

  </div>
</template>

<script>
import { mapActions, mapGetters } from "vuex";
import NProgress from "nprogress";
import jsPDF from "jspdf";
import autoTable from "jspdf-autotable";
import DateRangePicker from 'vue2-daterange-picker'
import 'vue2-daterange-picker/dist/vue2-daterange-picker.css'
import moment from 'moment'
import {
  formatPriceDisplay as formatPriceDisplayHelper,
  getPriceFormatSetting
} from "../../../../utils/priceFormat";

export default {

  metaInfo: {
    title: "Product Sales Report"
  },
  components: { DateRangePicker },
  data() {
    return {
      startDate: "", 
      endDate: "", 
      dateRange: { 
       startDate: "", 
       endDate: "" 
      }, 
      locale:{ 
          //separator between the two ranges apply
          Label: "Apply", 
          cancelLabel: "Cancel", 
          weekLabel: "W", 
          customRangeLabel: "Custom Range", 
          daysOfWeek: moment.weekdaysMin(), 
          //array of days - see moment documenations for details 
          monthNames: moment.monthsShort(), //array of month names - see moment documenations for details 
          firstDay: 1 //ISO first day of week - see moment documenations for details
        },
      isLoading: true,
      serverParams: {
        sort: {
          field: "id",
          type: "desc"
        },
        page: 1,
        perPage: 10
      },
      rows: [{
          statut: 'Total',
         
          children: [
             
          ],
      },],
      search: "",
      totalRows: "",
      showDropdown: false,
      Filter_Client: "",
      Filter_warehouse: "",
      customers: [],
      warehouses: [],
      sales: [],
      limit: "10",
      today_mode: true,
      to: "",
      from: "",
      // Optional price format key for frontend display (loaded from system settings/Vuex store)
      price_format_key: null
    };
  },
   mounted() {
    this.$root.$on("bv::dropdown::show", bvEvent => {
      this.showDropdown = true;
    });
    this.$root.$on("bv::dropdown::hide", bvEvent => {
      this.showDropdown = false;
    });
  },
  computed: {
    ...mapGetters(["currentUserPermissions", "currentUser"]),
    columns() {
      return [
        {
          label: this.$t("date"),
          field: "date",
          tdClass: "text-left",
          thClass: "text-left"
        },
        {
          label: this.$t("Reference"),
          field: "Ref",
          tdClass: "text-left",
          thClass: "text-left"
        },
        {
          label: this.$t("Customer"),
          field: "client_name",
          tdClass: "text-left",
          thClass: "text-left"
        },
        {
          label: this.$t("warehouse"),
          field: "warehouse_name",
          tdClass: "text-left",
          thClass: "text-left"
        },
      
        {
          label: this.$t("Name_product"),
          field: "product_name",
          tdClass: "text-left",
          thClass: "text-left",
          sortable: false
        },
        {
          label: this.$t("Qty_sold"),
          field: "quantity",
          type: "decimal",
          headerField: this.sumCount,
          tdClass: "text-left",
          thClass: "text-left",
          sortable: false
        },
        {
          label: this.$t("Total"),
          field: "total",
          headerField: this.sumCount2,
          tdClass: "text-left",
          thClass: "text-left",
          sortable: false
        },
      ];
    }
  },
  methods: {

    sumCount(rowObj) {
      if (!rowObj || !Array.isArray(rowObj.children)) {
        return 0;
      }
      let sum = 0;
      for (let i = 0; i < rowObj.children.length; i++) {
        const value = Number(rowObj.children[i].quantity) || 0;
        if (Number.isFinite(value)) {
          sum += value;
        }
      }
      return sum;
    },
    // Group footer helper for vue-good-table.
    // Returns a formatted string so the footer row inside the table
    // looks like a normal data row, but uses the global price format & currency.
    sumCount2(rowObj) {
      if (!rowObj || !Array.isArray(rowObj.children)) {
        return this.formatPriceWithSymbol(this.currentUser && this.currentUser.currency, 0, 2);
      }
      let sum = 0;
      for (let i = 0; i < rowObj.children.length; i++) {
        const value = Number(rowObj.children[i].total) || 0;
        if (Number.isFinite(value)) {
          sum += value;
        }
      }
      return this.formatPriceWithSymbol(this.currentUser && this.currentUser.currency, sum, 2);
    },


    //---- update Params Table
    updateParams(newProps) {
      this.serverParams = Object.assign({}, this.serverParams, newProps);
    },

    //---- Event Page Change
    onPageChange({ currentPage }) {
      if (this.serverParams.page !== currentPage) {
        this.updateParams({ page: currentPage });
        this.Get_Sales(currentPage);
      }
    },

    //---- Event Per Page Change
    onPerPageChange({ currentPerPage }) {
      if (this.limit !== currentPerPage) {
        this.limit = currentPerPage;
        this.updateParams({ page: 1, perPage: currentPerPage });
        this.Get_Sales(1);
      }
    },

    //---- Event Sort change
    onSortChange(params) {
      let field = "";
      if (params[0].field == "client_name") {
        field = "client_id";
      } else if (params[0].field == "warehouse_name") {
        field = "warehouse_id";
      } else {
        field = params[0].field;
      }
      this.updateParams({
        sort: {
          type: params[0].type,
          field: field
        }
      });
      this.Get_Sales(this.serverParams.page);
    },

    
    onSearch(value) {
      this.search = value.searchTerm;
      this.Get_Sales(this.serverParams.page);
    },

    //---Validate State Fields
    getValidationState({ dirty, validated, valid = null }) {
      return dirty || validated ? valid : null;
    },
    //------ Toast
    makeToast(variant, msg, title) {
      this.$root.$bvToast.toast(msg, {
        title: title,
        variant: variant,
        solid: true
      });
    },


    //------ Reset Filter
    Reset_Filter() {
      this.search = "";
      this.Filter_Client = "";
      this.Filter_warehouse = "";
      this.Get_Sales(this.serverParams.page);
    },


    //------------------------------Formetted Numbers -------------------------\\
    formatNumber(number, dec) {
      const value = (typeof number === "string"
        ? number
        : number.toString()
      ).split(".");
      if (dec <= 0) return value[0];
      let formated = value[1] || "";
      if (formated.length > dec)
        return `${value[0]}.${formated.substr(0, dec)}`;
      while (formated.length < dec) formated += "0";
      return `${value[0]}.${formated}`;
    },

    // Price formatting for display only (does NOT affect calculations or stored values)
    // Uses the global/system price_format setting when available; otherwise falls back
    // to the existing toLocaleString behavior to preserve current behavior.
    formatPriceDisplay(number, dec) {
      try {
        const decimals = Number.isInteger(dec) ? dec : 2;
        const n = Number(number || 0);
        const key = this.price_format_key || getPriceFormatSetting({ store: this.$store });
        if (key) {
          this.price_format_key = key;
        }
        const effectiveKey = key || null;
        return formatPriceDisplayHelper(n, decimals, effectiveKey);
      } catch (e) {
        const n = Number(number || 0);
        return n.toLocaleString(undefined, { maximumFractionDigits: dec || 2 });
      }
    },

    formatPriceWithSymbol(symbol, number, dec) {
      const safeSymbol = symbol || "";
      const value = this.formatPriceDisplay(number, dec);
      return safeSymbol ? `${safeSymbol} ${value}` : value;
    },


    //----------------------------------- Sales PDF ------------------------------\\
    Sales_PDF() {
      var self = this;
      let pdf = new jsPDF("p", "pt");

      const fontPath = "/fonts/Vazirmatn-Bold.ttf";
      pdf.addFont(fontPath, "VazirmatnBold", "bold"); 
      pdf.setFont("VazirmatnBold"); 

      let columns = [
        { header: self.$t("date"), dataKey: "date" },
        { header: self.$t("Reference"), dataKey: "Ref" },
        { header: self.$t("Customer"), dataKey: "client_name" },
        { header: self.$t("warehouse"), dataKey: "warehouse_name" },
        { header: self.$t("Name_product"), dataKey: "product_name" },
        { header: self.$t("Qty_sold"), dataKey: "quantity" },
        { header: self.$t("Total"), dataKey: "total" },
      ];

      // Calculate totals
      let totalquantity = self.sales.reduce((sum, sale) => sum + parseFloat(sale.quantity || 0), 0);
      let totaltotal= self.sales.reduce((sum, sale) => sum + parseFloat(sale.total || 0), 0);

      let footer = [{
        date: self.$t("Total"),
        Ref: '',
        client_name: '',
        warehouse_name: '',
        product_name: '',
        quantity: `${totalquantity.toFixed(2)}`,
        total: `${totaltotal.toFixed(2)}`,
      }];

      autoTable(pdf, {
             columns: columns,
             body: self.sales,
             foot: footer,
             startY: 70,
             theme: "grid", 
             didDrawPage: (data) => {
               pdf.setFont("VazirmatnBold");
               pdf.setFontSize(18);
               pdf.text("Product Sales Report", 40, 25);   
             },
             styles: {
               font: "VazirmatnBold", 
               halign: "center", // 
             },
             headStyles: {
               fillColor: [26, 86, 219], 
               textColor: 255, 
               fontStyle: "bold", 
             },
             footStyles: {
               fillColor: [26, 86, 219], 
               textColor: 255, 
               fontStyle: "bold", 
             },
      });

      pdf.save("Product_sales_report.pdf");

    },


  
    //---------------------------------------- Set To Strings-------------------------\\
    setToStrings() {
      // Simply replaces null values with strings=''
      if (this.Filter_Client === null) {
        this.Filter_Client = "";
      } else if (this.Filter_warehouse === null) {
        this.Filter_warehouse = "";
      } 
    },

    //----------------------------- Submit Date Picker -------------------\\
    Submit_filter_dateRange() {
      var self = this;
      self.startDate =  self.dateRange.startDate.toJSON().slice(0, 10);
      self.endDate = self.dateRange.endDate.toJSON().slice(0, 10);
      self.Get_Sales(1);
    },


    get_data_loaded() {
      var self = this;
      if (self.today_mode) {
        let startDate = new Date("01/01/2000");  // Set start date to "01/01/2000"
        let endDate = new Date();  // Set end date to current date

        self.startDate = startDate.toISOString();
        self.endDate = endDate.toISOString();

        self.dateRange.startDate = startDate.toISOString();
        self.dateRange.endDate = endDate.toISOString();
      }
    },


    //----------------------------------------- Get all Sales ------------------------------\\
    Get_Sales(page) {
      // Start the progress bar.
      NProgress.start();
      NProgress.set(0.1);
      this.setToStrings();
      this.get_data_loaded();
      axios
        .get(
          "report/product_sales_report?page=" +
            page +
            "&client_id=" +
            this.Filter_Client +
            "&warehouse_id=" +
            this.Filter_warehouse +
            "&SortField=" +
            this.serverParams.sort.field +
            "&SortType=" +
            this.serverParams.sort.type +
            "&search=" +
            this.search +
            "&limit=" +
            this.limit +
            "&to=" +
            this.endDate +
            "&from=" +
            this.startDate
        )
        .then(response => {
          this.sales = response.data.sales;
          this.customers = response.data.customers;
          this.warehouses = response.data.warehouses;
          this.totalRows = response.data.totalRows;
          this.rows[0].children = this.sales;
          // Complete the animation of theprogress bar.
          NProgress.done();
          this.isLoading = false;
          this.today_mode = false;
        })
        .catch(response => {
          // Complete the animation of theprogress bar.
          NProgress.done();
          setTimeout(() => {
            this.isLoading = false;
            this.today_mode = false;
          }, 500);
        });
    },

  
  
  
  },
  //----------------------------- Created function-------------------\\
  created() {
    this.Get_Sales(1);
  }
};
</script>

