import {
  Button,
  DatePicker,
  Form,
  Input,
  Statistic,
  Switch,
  Upload,
} from "antd";
import React, { useEffect, useState } from "react";
import { useTranslation } from "react-i18next";
import CurrencyInput from "../form-items-formatted/currency-form-item.component";
import JobSearchSelect from "../job-search-select/job-search-select.component";
import VendorSearchSelect from "../vendor-search-select/vendor-search-select.component";
import InvoiceFormLines from "./invoice-form.lines.component";
import "./invoice-form.styles.scss";
import { CalculateInvoiceTotal } from "./invoice-form.totals.utility";

export default function InvoiceFormComponent({
  form,
  roAutoCompleteOptions,
  vendorAutoCompleteOptions,
  lineData,
  responsibilityCenters,
  loadLines,
  invoiceEdit,
}) {
  const { t } = useTranslation();

  const [discount, setDiscount] = useState(0);

  const handleVendorSelect = (props, opt) => {
    setDiscount(opt.discount);
  };

  //TODO: Test this further. Required to set discount when viewing an invoice.
  useEffect(() => {
    if (form.getFieldValue("vendorid") && vendorAutoCompleteOptions) {
      const vendorId = form.getFieldValue("vendorid");
      const matchingVendors = vendorAutoCompleteOptions.filter(
        (v) => v.id === vendorId
      );
      if (matchingVendors.length === 1) {
        setDiscount(matchingVendors[0].discount);
      }
    }
    if (form.getFieldValue("jobid")) {
      loadLines({ variables: { id: form.getFieldValue("jobid") } });
    }
  }, [form, setDiscount, vendorAutoCompleteOptions, loadLines]);

  return (
    <div className='invoice-form-wrapper'>
      <div className='invoice-form-invoice-details'>
        <Form.Item
          name='jobid'
          label={t("invoices.fields.ro_number")}
          rules={[
            {
              required: true,
              message: t("general.validation.required"),
            },
          ]}>
          <JobSearchSelect
            options={roAutoCompleteOptions}
            disabled={invoiceEdit}
            onBlur={() => {
              if (form.getFieldValue("jobid") !== null) {
                loadLines({ variables: { id: form.getFieldValue("jobid") } });
              }
            }}
          />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.vendor")}
          name='vendorid'
          style={{ display: invoiceEdit ? "none" : null }}
          rules={[
            {
              required: true,
              message: t("general.validation.required"),
            },
          ]}>
          <VendorSearchSelect
            options={vendorAutoCompleteOptions}
            onSelect={handleVendorSelect}
          />
        </Form.Item>
      </div>
      <div className='invoice-form-invoice-details'>
        <Form.Item
          label={t("invoices.fields.invoice_number")}
          name='invoice_number'
          rules={[
            {
              required: true,
              message: t("general.validation.required"),
            },
          ]}>
          <Input />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.date")}
          name='date'
          rules={[
            {
              required: true,
              message: t("general.validation.required"),
            },
          ]}>
          <DatePicker />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.is_credit_memo")}
          name='is_credit_memo'
          valuePropName='checked'>
          <Switch />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.total")}
          name='total'
          rules={[
            {
              required: true,
              message: t("general.validation.required"),
            },
          ]}>
          <CurrencyInput />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.federal_tax_rate")}
          name='federal_tax_rate'>
          <CurrencyInput />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.state_tax_rate")}
          name='state_tax_rate'>
          <CurrencyInput />
        </Form.Item>
        <Form.Item
          label={t("invoices.fields.local_tax_rate")}
          name='local_tax_rate'>
          <CurrencyInput />
        </Form.Item>
      </div>
      <InvoiceFormLines
        lineData={lineData}
        discount={discount}
        form={form}
        responsibilityCenters={responsibilityCenters}
      />

      <Form.Item
        name='upload'
        label='Upload'
        style={{ display: invoiceEdit ? "none" : null }}
        valuePropName='fileList'
        getValueFromEvent={(e) => {
          console.log("Upload event:", e);
          if (Array.isArray(e)) {
            return e;
          }
          return e && e.fileList;
        }}>
        <Upload name='logo' beforeUpload={() => false} listType='picture'>
          <Button>Click to upload</Button>
        </Upload>
      </Form.Item>

      <Form.Item shouldUpdate>
        {() => {
          const values = form.getFieldsValue([
            "invoicelines",
            "total",
            "federal_tax_rate",
            "state_tax_rate",
            "local_tax_rate",
          ]);
          let totals;
          if (
            !!values.total &&
            !!values.invoicelines &&
            values.invoicelines.length > 0
          )
            totals = CalculateInvoiceTotal(values);
          if (!!totals)
            return (
              <div className='invoice-form-totals'>
                <Statistic
                  title={t("invoices.labels.subtotal")}
                  value={totals.subtotal.toFormat()}
                  precision={2}
                />
                <Statistic
                  title={t("invoices.labels.federal_tax")}
                  value={totals.federalTax.toFormat()}
                  precision={2}
                />
                <Statistic
                  title={t("invoices.labels.state_tax")}
                  value={totals.stateTax.toFormat()}
                  precision={2}
                />
                <Statistic
                  title={t("invoices.labels.local_tax")}
                  value={totals.localTax.toFormat()}
                  precision={2}
                />
                <Statistic
                  title={t("invoices.labels.entered_total")}
                  value={totals.enteredTotal.toFormat()}
                  precision={2}
                />
                <Statistic
                  title={t("invoices.labels.invoice_total")}
                  value={totals.invoiceTotal.toFormat()}
                  precision={2}
                />
                <Statistic
                  title={t("invoices.labels.discrepancy")}
                  valueStyle={{
                    color:
                      totals.discrepancy.getAmount() === 0 ? "green" : "red",
                  }}
                  value={totals.discrepancy.toFormat()}
                  precision={2}
                />
              </div>
            );
          return null;
        }}
      </Form.Item>
    </div>
  );
}