// @ts-nocheck
import React from 'react';
import { useFormikContext } from 'formik';
import intl from 'react-intl-universal';
import moment from 'moment';
import * as R from 'ramda';
import { Intent } from '@blueprintjs/core';
import { omit, first, sumBy, round } from 'lodash';
import {
  compose,
  transformToForm,
  repeatValue,
  formattedAmount,
  defaultFastFieldShouldUpdate,
} from '@/utils';
import { ERROR } from '@/constants/errors';
import { AppToaster } from '@/components';
import { useCurrentOrganization } from '@/hooks/state';
import {
  aggregateItemEntriesTaxRates,
  assignEntriesTaxAmount,
  getEntriesTotal,
} from '@/containers/Entries/utils';
import { useInvoiceFormContext } from './InvoiceFormProvider';
import {
  updateItemsEntriesTotal,
  ensureEntriesHaveEmptyLine,
} from '@/containers/Entries/utils';
import { TaxType } from '@/interfaces/TaxRates';

export const MIN_LINES_NUMBER = 1;

// Default invoice entry object.
export const defaultInvoiceEntry = {
  index: 0,
  item_id: '',
  rate: '',
  discount: '',
  quantity: '',
  description: '',
  amount: '',
  tax_rate_id: '',
  tax_rate: '',
  tax_amount: '',
};

// Default invoice object.
export const defaultInvoice = {
  customer_id: '',
  invoice_date: moment(new Date()).format('YYYY-MM-DD'),
  due_date: moment().format('YYYY-MM-DD'),
  delivered: '',
  invoice_no: '',
  inclusive_exclusive_tax: TaxType.Inclusive,
  // Holds the invoice number that entered manually only.
  invoice_no_manually: '',
  reference_no: '',
  invoice_message: '',
  terms_conditions: '',
  exchange_rate: '1',
  currency_code: '',
  branch_id: '',
  warehouse_id: '',
  project_id: '',
  entries: [...repeatValue(defaultInvoiceEntry, MIN_LINES_NUMBER)],
};

/**
 * Transform invoice to initial values in edit mode.
 */
export function transformToEditForm(invoice) {
  const initialEntries = [
    ...invoice.entries.map((invoice) => ({
      ...transformToForm(invoice, defaultInvoiceEntry),
    })),
    ...repeatValue(
      defaultInvoiceEntry,
      Math.max(MIN_LINES_NUMBER - invoice.entries.length, 0),
    ),
  ];
  const entries = compose(
    ensureEntriesHaveEmptyLine(defaultInvoiceEntry),
    updateItemsEntriesTotal,
  )(initialEntries);

  return {
    ...transformToForm(invoice, defaultInvoice),
    inclusive_exclusive_tax: invoice.is_inclusive_tax
      ? TaxType.Inclusive
      : TaxType.Exclusive,
    entries,
  };
}

/**
 * Transformes the response errors types.
 */
export const transformErrors = (errors, { setErrors }) => {
  if (errors.some((e) => e.type === ERROR.SALE_INVOICE_NUMBER_IS_EXISTS)) {
    setErrors({
      invoice_no: intl.get('sale_invoice_number_is_exists'),
    });
  }
  if (
    errors.some(
      ({ type }) =>
        type === ERROR.SALE_ESTIMATE_IS_ALREADY_CONVERTED_TO_INVOICE,
    )
  ) {
    AppToaster.show({
      message: intl.get('sale_estimate_is_already_converted_to_invoice'),
      intent: Intent.DANGER,
    });
  }
  if (
    errors.some((error) => error.type === ERROR.SALE_INVOICE_NO_IS_REQUIRED)
  ) {
    setErrors({
      invoice_no: intl.get('invoice.field.error.invoice_no_required'),
    });
  }
};

/**
 * Detarmines customer name field when should update.
 */
export const customerNameFieldShouldUpdate = (newProps, oldProps) => {
  return (
    newProps.shouldUpdateDeps.items !== oldProps.shouldUpdateDeps.items ||
    defaultFastFieldShouldUpdate(newProps, oldProps)
  );
};

/**
 * Detarmines invoice entries field when should update.
 */
export const entriesFieldShouldUpdate = (newProps, oldProps) => {
  return (
    newProps.items !== oldProps.items ||
    newProps.taxRates !== oldProps.taxRates ||
    defaultFastFieldShouldUpdate(newProps, oldProps)
  );
};

export const ITEMS_FILTER_ROLES_QUERY = JSON.stringify([
  {
    index: 1,
    fieldKey: 'sellable',
    value: true,
    condition: '&&',
    comparator: 'equals',
  },
  {
    index: 2,
    fieldKey: 'active',
    value: true,
    condition: '&&',
    comparator: 'equals',
  },
]);

/**
 * Transformes the form values to request body values.
 */
export function transformValueToRequest(values) {
  const entries = values.entries.filter(
    (item) => item.item_id && item.quantity,
  );
  return {
    ...omit(values, [
      'invoice_no',
      'invoice_no_manually',
      'inclusive_exclusive_tax',
    ]),
    // The `invoice_no_manually` will be presented just if the auto-increment
    // is disable, always both attributes hold the same value in manual mode.
    ...(values.invoice_no_manually && {
      invoice_no: values.invoice_no,
    }),
    is_inclusive_tax: values.inclusive_exclusive_tax === TaxType.Inclusive,
    entries: entries.map((entry) => ({
      ...omit(entry, ['amount', 'tax_amount', 'tax_rate']),
    })),
    delivered: false,
  };
}

export const useSetPrimaryWarehouseToForm = () => {
  const { setFieldValue } = useFormikContext();
  const { warehouses, isWarehousesSuccess } = useInvoiceFormContext();

  React.useEffect(() => {
    if (isWarehousesSuccess) {
      const primaryWarehouse =
        warehouses.find((b) => b.primary) || first(warehouses);

      if (primaryWarehouse) {
        setFieldValue('warehouse_id', primaryWarehouse.id);
      }
    }
  }, [isWarehousesSuccess, setFieldValue, warehouses]);
};

export const useSetPrimaryBranchToForm = () => {
  const { setFieldValue } = useFormikContext();
  const { branches, isBranchesSuccess } = useInvoiceFormContext();

  React.useEffect(() => {
    if (isBranchesSuccess) {
      const primaryBranch = branches.find((b) => b.primary) || first(branches);

      if (primaryBranch) {
        setFieldValue('branch_id', primaryBranch.id);
      }
    }
  }, [isBranchesSuccess, setFieldValue, branches]);
};

/**
 * Retrieves the invoice subtotal.
 * @returns {number}
 */
export const useInvoiceSubtotal = () => {
  const {
    values: { entries },
  } = useFormikContext();

  // Calculate the total due amount of invoice entries.
  return React.useMemo(() => getEntriesTotal(entries), [entries]);
};

/**
 * Retreives the invoice totals.
 */
export const useInvoiceTotals = () => {
  const {
    values: { entries, currency_code: currencyCode },
  } = useFormikContext();

  // Retrieves the invoice entries total.
  const total = React.useMemo(() => getEntriesTotal(entries), [entries]);

  const total_ = useInvoiceTotal();

  // Retrieves the formatted total money.
  const formattedTotal = React.useMemo(
    () => formattedAmount(total_, currencyCode),
    [total_, currencyCode],
  );
  // Retrieves the formatted subtotal.
  const formattedSubtotal = React.useMemo(
    () => formattedAmount(total, currencyCode, { money: false }),
    [total, currencyCode],
  );
  // Retrieves the payment total.
  const paymentTotal = React.useMemo(() => 0, []);

  // Retireves the formatted payment total.
  const formattedPaymentTotal = React.useMemo(
    () => formattedAmount(paymentTotal, currencyCode),
    [paymentTotal, currencyCode],
  );
  // Retrieves the formatted due total.
  const dueTotal = React.useMemo(
    () => total - paymentTotal,
    [total, paymentTotal],
  );
  // Retrieves the formatted due total.
  const formattedDueTotal = React.useMemo(
    () => formattedAmount(dueTotal, currencyCode),
    [dueTotal, currencyCode],
  );

  return {
    total,
    paymentTotal,
    dueTotal,
    formattedTotal,
    formattedSubtotal,
    formattedPaymentTotal,
    formattedDueTotal,
  };
};

/**
 * Detarmines whether the invoice has foreign customer.
 * @returns {boolean}
 */
export const useInvoiceIsForeignCustomer = () => {
  const { values } = useFormikContext();
  const currentOrganization = useCurrentOrganization();

  const isForeignCustomer = React.useMemo(
    () => values.currency_code !== currentOrganization.base_currency,
    [values.currency_code, currentOrganization.base_currency],
  );
  return isForeignCustomer;
};

/**
 * Resets the form state to initial values
 */
export const resetFormState = ({ initialValues, values, resetForm }) => {
  resetForm({
    values: {
      // Reset the all values except the warehouse and brand id.
      ...initialValues,
      warehouse_id: values.warehouse_id,
      brand_id: values.brand_id,
    },
  });
};

/**
 * Re-calcualte the entries tax amount when editing.
 * @returns {string}
 */
export const composeEntriesOnEditInclusiveTax = (
  inclusiveExclusiveTax: string,
  entries,
) => {
  return R.compose(
    assignEntriesTaxAmount(inclusiveExclusiveTax === 'inclusive'),
  )(entries);
};

/**
 * Retreives the invoice aggregated tax rates.
 * @returns {Array}
 */
export const useInvoiceAggregatedTaxRates = () => {
  const { values } = useFormikContext();
  const { taxRates } = useInvoiceFormContext();

  const aggregateTaxRates = React.useMemo(
    () => aggregateItemEntriesTaxRates(values.currency_code, taxRates),
    [values.currency_code, taxRates],
  );
  // Calculate the total tax amount of invoice entries.
  return React.useMemo(() => {
    return aggregateTaxRates(values.entries);
  }, [aggregateTaxRates, values.entries]);
};

/**
 * Retreives the invoice total tax amount.
 * @returns {number}
 */
export const useInvoiceTotalTaxAmount = () => {
  const { values } = useFormikContext();

  return React.useMemo(() => {
    const filteredEntries = values.entries.filter((entry) => entry.tax_amount);
    return sumBy(filteredEntries, 'tax_amount');
  }, [values.entries]);
};

/**
 * Retreives the invoice total.
 * @returns {number}
 */
export const useInvoiceTotal = () => {
  const subtotal = useInvoiceSubtotal();
  const totalTaxAmount = useInvoiceTotalTaxAmount();
  const isExclusiveTax = useIsInvoiceTaxExclusive();

  return R.compose(R.when(R.always(isExclusiveTax), R.add(totalTaxAmount)))(
    subtotal,
  );
};

/**
 * Retreives the invoice due amount.
 * @returns {number}
 */
export const useInvoiceDueAmount = () => {
  const total = useInvoiceTotal();

  return total;
};

/**
 * Detrmines whether the tax is inclusive.
 * @returns {boolean}
 */
export const useIsInvoiceTaxInclusive = () => {
  const { values } = useFormikContext();

  return values.inclusive_exclusive_tax === TaxType.Inclusive;
};

/**
 * Detrmines whether the tax is exclusive.
 * @returns {boolean}
 */
export const useIsInvoiceTaxExclusive = () => {
  const { values } = useFormikContext();

  return values.inclusive_exclusive_tax === TaxType.Exclusive;
};

/**
 * Convert the given rate to the local currency.
 * @param {number} rate
 * @param {number} exchangeRate
 * @returns {number}
 */
export const convertToForeignCurrency = (
  rate: number,
  exchangeRate: number,
) => {
  return rate * exchangeRate;
};

/**
 * Converts the given rate to the base currency.
 * @param {number} rate
 * @param {number} exchangeRate
 * @returns {number}
 */
export const covertToBaseCurrency = (rate: number, exchangeRate: number) => {
  return rate / exchangeRate;
};

/**
 * Reverts the given rate from the old exchange rate and covert it to the new
 * currency based on the given new exchange rate.
 * @param {number} rate -
 * @param {number} oldExchangeRate - Old exchange rate.
 * @param {number} newExchangeRate - New exchange rate.
 * @returns {number}
 */
const revertAndConvertExchangeRate = (
  rate: number,
  oldExchangeRate: number,
  newExchangeRate: number,
) => {
  const oldValue = convertToForeignCurrency(rate, oldExchangeRate);
  const newValue = covertToBaseCurrency(oldValue, newExchangeRate);

  return round(newValue, 3);
};

/**
 * Assign the new item entry rate after converting to the new exchange rate.
 * @params {number} oldExchangeRate -
 * @params {number} newExchangeRate -
 * @params {IItemEntry} entries -
 */
const assignRateRevertAndCovertExchangeRate = R.curry(
  (oldExchangeRate: number, newExchangeRate: number, entries: IItemEntry[]) => {
    return entries.map((entry) => ({
      ...entry,
      rate: revertAndConvertExchangeRate(
        entry.rate,
        oldExchangeRate,
        newExchangeRate,
      ),
    }));
  },
);

/**
 * Compose invoice entries on exchange rate change.
 * @returns {(oldExchangeRate: number, newExchangeRate: number) => IItemEntry[]}
 */
export const useInvoiceEntriesOnExchangeRateChange = () => {
  const {
    values: { entries },
  } = useFormikContext();

  return React.useMemo(() => {
    return R.curry((oldExchangeRate: number, newExchangeRate: number) => {
      return R.compose(
        // Updates entries total.
        updateItemsEntriesTotal,
        // Assign a new rate of the given new exchange rate from the old exchange rate.
        assignRateRevertAndCovertExchangeRate(oldExchangeRate, newExchangeRate),
      )(entries);
    });
  }, [entries]);
};
