import React, { useMemo } from 'react';
import { Formik, Form } from 'formik';

import { useIntl } from 'react-intl';
import { pick, sumBy, omit, isEmpty } from 'lodash';
import { Intent } from '@blueprintjs/core';
import classNames from 'classnames';
import { useHistory } from 'react-router-dom';

import { CLASSES } from 'common/classes';
import PaymentReceiveHeader from './PaymentReceiveFormHeader';
// import PaymentReceiveItemsTable from './PaymentReceiveItemsTable';
import PaymentReceiveFloatingActions from './PaymentReceiveFloatingActions';
import PaymentReceiveFormFooter from './PaymentReceiveFormFooter';

import withSettings from 'containers/Settings/withSettings';
import {
  EditPaymentReceiveFormSchema,
  CreatePaymentReceiveFormSchema,
} from './PaymentReceiveForm.schema';
import { AppToaster } from 'components';
import { compose } from 'utils';

import { usePaymentReceiveFormContext } from './PaymentReceiveFormProvider';
import {
  defaultPaymentReceive,
  defaultPaymentReceiveEntry,
  transformToEditForm,
} from './utils';

import 'style/pages/PaymentReceive/PageForm.scss';

/**
 * Payment Receive form.
 */
function PaymentReceiveForm({
  // #withSettings
  paymentReceiveNextNumber,
  paymentReceiveNumberPrefix,
}) {
  const history = useHistory();
  const { formatMessage } = useIntl();

  // Payment receive form context.
  const {
    isNewMode,
    paymentReceive,
    paymentReceiveId,
    submitPayload,
    editPaymentReceiveMutate,
    createPaymentReceiveMutate,
  } = usePaymentReceiveFormContext();

  // Payment receive number.
  const paymentReceiveNumber = paymentReceiveNumberPrefix
    ? `${paymentReceiveNumberPrefix}-${paymentReceiveNextNumber}`
    : paymentReceiveNextNumber;

  // Form validation schema.
  const validationSchema = isNewMode
    ? CreatePaymentReceiveFormSchema
    : EditPaymentReceiveFormSchema;

  // Form initial values.
  const initialValues = useMemo(
    () => ({
      ...(!isEmpty(paymentReceive)
        ? {
            ...transformToEditForm(paymentReceive, []),
          }
        : {
            ...paymentReceive,
            payment_receive_no: paymentReceiveNumber,
          }),
    }),
    [paymentReceive, paymentReceiveNumber],
  );

  // Handle form submit.
  const handleSubmitForm = (
    values,
    { setSubmitting, resetForm, setFieldError },
  ) => {
    setSubmitting(true);

    // Filters entries that have no `invoice_id` and `payment_amount`.
    const entries = values.entries
      .filter((entry) => entry.invoice_id && entry.payment_amount)
      .map((entry) => ({
        ...omit(entry, ['due_amount']),
      }));

    // Calculates the total payment amount of entries.
    const totalPaymentAmount = sumBy(entries, 'payment_amount');

    if (totalPaymentAmount <= 0) {
      AppToaster.show({
        message: formatMessage({
          id: 'you_cannot_make_payment_with_zero_total_amount',
        }),
        intent: Intent.DANGER,
      });
      setSubmitting(false);
      return;
    }
    const form = { ...values, entries };

    // Handle request response success.
    const onSaved = (response) => {
      AppToaster.show({
        message: formatMessage({
          id: paymentReceiveId
            ? 'the_payment_receive_transaction_has_been_edited'
            : 'the_payment_receive_transaction_has_been_created',
        }),
        intent: Intent.SUCCESS,
      });
      setSubmitting(false);

      if (submitPayload.redirect) {
        history.push('/payment-receives');
      }
      if (submitPayload.resetForm) {
        resetForm();
      }
    };
    // Handle request response errors.
    const onError = (errors) => {
      const getError = (errorType) => errors.find((e) => e.type === errorType);

      if (getError('PAYMENT_RECEIVE_NO_EXISTS')) {
        setFieldError(
          'payment_receive_no',
          formatMessage({ id: 'payment_number_is_not_unique' }),
        );
      }
      setSubmitting(false);
    };

    if (paymentReceiveId) {
      editPaymentReceiveMutate([paymentReceiveId, form])
        .then(onSaved)
        .catch(onError);
    } else {
      createPaymentReceiveMutate(form).then(onSaved).catch(onError);
    }
  };

  const transformDataTableToEntries = (dataTable) => {
    return dataTable.map((data) => ({
      ...pick(data, Object.keys(defaultPaymentReceiveEntry)),
    }));
  };

  return (
    <div
      className={classNames(
        CLASSES.PAGE_FORM,
        CLASSES.PAGE_FORM_STRIP_STYLE,
        CLASSES.PAGE_FORM_PAYMENT_RECEIVE,
      )}
    >
      <Formik
        initialValues={initialValues}
        onSubmit={handleSubmitForm}
        validationSchema={validationSchema}
      >
        <Form>
          <PaymentReceiveHeader />
          <PaymentReceiveFormFooter />
          <PaymentReceiveFloatingActions />
        </Form>
      </Formik>

      {/* <form onSubmit={handleSubmit}> */}
      {/* <PaymentReceiveHeader
          errors={errors}
          touched={touched}
          setFieldValue={setFieldValue}
          getFieldProps={getFieldProps}
          values={values}
          paymentReceiveId={paymentReceiveId}
          customerId={values.customer_id}
          onFullAmountChanged={handleFullAmountChange}
          receivableFullAmount={receivableFullAmount}
          amountReceived={fullAmountReceived}
          onPaymentReceiveNumberChanged={handlePaymentReceiveNumberChanged}
        />
        <div className={classNames(CLASSES.PAGE_FORM_BODY)}>
          <PaymentReceiveItemsTable
            paymentReceiveId={paymentReceiveId}
            customerId={values.customer_id}
            fullAmount={fullAmount}
            onUpdateData={handleUpdataData}
            paymentReceiveEntries={localPaymentEntries}
            errors={errors?.entries}
            onClickClearAllLines={handleClearAllLines}
            onFetchEntriesSuccess={handleFetchEntriesSuccess}
          />
        </div>

        

        <PaymentReceiveFloatingActions
          isSubmitting={isSubmitting}
          paymentReceiveId={paymentReceiveId}
          onClearClick={handleClearBtnClick}
          onSubmitClick={handleSubmitClick}
          onCancelClick={handleCancelClick}
          onSubmitForm={submitForm}
        /> */}
      {/* </form> */}
    </div>
  );
}

export default compose(
  withSettings(({ paymentReceiveSettings }) => ({
    paymentReceiveNextNumber: paymentReceiveSettings?.nextNumber,
    paymentReceiveNumberPrefix: paymentReceiveSettings?.numberPrefix,
  })),
)(PaymentReceiveForm);