import { useEffect, useState } from 'react';
import { MuiTelInput } from 'mui-tel-input';

import { getComponentFromMap } from '@pega/react-sdk-components/lib/bridge/helpers/sdk_component_map';
import type { PConnFieldProps } from '@pega/react-sdk-components/lib/types/PConnProps';
import handleEvent from '@pega/react-sdk-components/lib/components/helpers/event-utils';
import useStatus from '@pega/react-sdk-components/lib/hooks/useStatus';
import { getFieldSx } from '@pega/react-sdk-components/lib/components/helpers/field-utils';

interface PhoneProps extends PConnFieldProps {
  // If any, enter additional props that only exist on Phone here
  showFieldMessage?: boolean;
  messageConfig?: {
    content?: string;
    visibility?: boolean;
  };
  variant?: string;
}

export default function Phone(props: PhoneProps) {
  // Get emitted components from map (so we can get any override that may exist)
  const FieldValueList = getComponentFromMap('FieldValueList');

  const {
    getPConnect,
    label,
    required,
    disabled,
    value = '',
    validatemessage,
    onChange,
    readOnly,
    testId,
    helperText,
    displayMode,
    hideLabel,
    placeholder,
    showFieldMessage,
    messageConfig = {}
  } = props;

  const pConn = getPConnect();
  const actions = pConn.getActionsApi();
  const propName = (pConn.getStateProps() as any).value;

  const [inputValue, setInputValue] = useState(value);
  useEffect(() => setInputValue(value), [value]);

  const eligibleForFieldWarning = showFieldMessage && messageConfig.visibility && !readOnly;
  const helperTextToDisplay = validatemessage || (eligibleForFieldWarning ? messageConfig.content : helperText);

  const status = useStatus({
    showFieldMessage,
    messageVisibility: messageConfig.visibility,
    validatemessage,
    readOnly
  });

  let testProp = {};

  testProp = {
    'data-test-id': testId
  };

  if (displayMode === 'DISPLAY_ONLY') {
    return <FieldValueList name={hideLabel ? '' : label} value={value} variant={props.variant} />;
  }

  if (displayMode === 'STACKED_LARGE_VAL') {
    return <FieldValueList name={hideLabel ? '' : label} value={value} variant='stacked' />;
  }

  if (readOnly) {
    const disableDropdown = true;
    return (
      <div>
        <MuiTelInput
          fullWidth
          helperText={helperTextToDisplay}
          placeholder={placeholder ?? ''}
          size='small'
          defaultCountry='US'
          required={required}
          disabled={disabled}
          onChange={onChange}
          error={status === 'error'}
          label={label}
          value={value}
          slotProps={{
            input: {
              readOnly: true,
              ...testProp
            }
          }}
          disableDropdown={disableDropdown}
          sx={getFieldSx(status)}
        />
      </div>
    );
  }

  const handleChange = inputVal => {
    setInputValue(inputVal);
  };

  const handleBlur = event => {
    const phoneValue = event?.target?.value;
    let phoneNumber = phoneValue.split(' ').slice(1).join();
    phoneNumber = phoneNumber ? `+${phoneValue && phoneValue.replace(/\D+/g, '')}` : '';
    handleEvent(actions, 'changeNblur', propName, phoneNumber);
  };

  return (
    <MuiTelInput
      fullWidth
      variant='outlined'
      helperText={helperTextToDisplay}
      placeholder={placeholder ?? ''}
      size='small'
      defaultCountry='US'
      required={required}
      disabled={disabled}
      onChange={handleChange}
      onBlur={!readOnly ? handleBlur : undefined}
      error={status === 'error'}
      label={label}
      value={inputValue}
      slotProps={{ input: { ...testProp } }}
      sx={getFieldSx(status)}
    />
  );
}