import { useState, useEffect, useRef } from 'react';
import { Input, EmailDisplay, FieldValueList, Text, URLDisplay, PhoneDisplay, withConfiguration } from '@pega/cosmos-react-core';
import type { PConnFieldProps } from './PConnProps';
import './create-nonce';

// includes in bundle
import { suggestionsHandler } from './suggestions-handler';
import handleEvent from './event-utils';

import Styled{{COMPONENT_CLASS_NAME}}Wrapper from './styles';

// interface for props
interface {{COMPONENT_CLASS_NAME}}Props extends PConnFieldProps {
  // If any, enter additional props that only exist on TextInput here
  helperText: string;
  isTableFormatter?: boolean;
  hasSuggestions?: boolean;
  variant?: any;
  formatter: string;
}

// interface for StateProps object
interface StateProps {
  value: string;
  hasSuggestions: boolean;
}

export const formatExists = (formatterVal: string) => {
  const formatterValues = ['TextInput', 'WorkStatus', 'RichText', 'Email', 'Phone', 'URL', 'Operator'];
  let isformatter = false;
  if (formatterValues.includes(formatterVal)) {
    isformatter = true;
  }
  return isformatter;
};

export const textFormatter = (formatter: string, value: any) => {
  let displayComponent: any = null;
  switch (formatter) {
    case 'TextInput': {
      displayComponent = value;
      break;
    }
    case 'Email': {
      displayComponent = <EmailDisplay value={value} displayText={value} variant='link' />;
      break;
    }
    case 'Phone': {
      displayComponent = <PhoneDisplay value={value} variant='link' />;
      break;
    }
    case 'URL': {
      displayComponent = <URLDisplay target='_blank' value={value} displayText={value} variant='link' />;
      break;
    }
    // no default
  }
  return displayComponent;
};

// Duplicated runtime code from Constellation Design System Component

// props passed in combination of props from property panel (config.json) and run time props from Constellation
// any default values in config.pros should be set in defaultProps at bottom of this file
function {{COMPONENT_CLASS_NAME}}(props: {{COMPONENT_CLASS_NAME}}Props) {
  const {
    getPConnect,
    value,
    placeholder,
    validatemessage,
    label,
    hideLabel = false,
    helperText,
    testId,
    displayMode,
    additionalProps = {},
    variant = 'inline',
    isTableFormatter = false,
    hasSuggestions = false
  } = props;
  const { formatter } = props;
  const pConn = getPConnect();
  const actions = pConn.getActionsApi();
  const stateProps = pConn.getStateProps() as StateProps;
  const propName: string = stateProps.value;

  const hasValueChange = useRef(false);

  let { readOnly = false, required = false, disabled = false } = props;
  [readOnly, required, disabled] = [readOnly, required, disabled].map(prop => prop === true || (typeof prop === 'string' && prop === 'true'));
  const [inputValue, setInputValue] = useState(value);
  useEffect(() => setInputValue(value), [value]);

  const [status, setStatus] = useState(hasSuggestions ? 'pending' : undefined);

  useEffect(() => {
    if (validatemessage !== '') {
      setStatus('error');
    }
    if (hasSuggestions) {
      setStatus('pending');
    } else if (!hasSuggestions && status !== 'success') {
      setStatus(validatemessage !== '' ? 'error' : undefined);
    }
  }, [validatemessage, hasSuggestions, status]);

  let displayComp: any = null;
  if (displayMode) {
    displayComp = <EmailDisplay value={value} displayText={inputValue} variant='link' />;
  }

  if (displayMode === 'LABELS_LEFT' || displayMode === 'DISPLAY_ONLY') {
    if (isTableFormatter && formatExists(formatter)) {
      displayComp = textFormatter(formatter, value);
    }
    return displayMode === 'DISPLAY_ONLY' ? (
      <Styled{{COMPONENT_CLASS_NAME}}Wrapper>{displayComp}</Styled{{COMPONENT_CLASS_NAME}}Wrapper>
    ) : (
      <Styled{{COMPONENT_CLASS_NAME}}Wrapper>
        <FieldValueList
          variant={hideLabel ? 'stacked' : variant}
          data-testid={testId}
          fields={[{ id: '1', name: hideLabel ? '' : label, value: displayComp }]}
        />
      </Styled{{COMPONENT_CLASS_NAME}}Wrapper>
    );
  }

  if (displayMode === 'STACKED_LARGE_VAL') {
    return (
      <Styled{{COMPONENT_CLASS_NAME}}Wrapper>
        <FieldValueList
          variant='stacked'
          data-testid={testId}
          fields={[
            {
              id: '2',
              name: hideLabel ? '' : label,
              value: (
                <Text variant='h1' as='span'>
                  {displayComp}
                </Text>
              )
            }
          ]}
        />
      </Styled{{COMPONENT_CLASS_NAME}}Wrapper>
    );
  }

  const onResolveSuggestionHandler = (accepted: boolean) => {
    suggestionsHandler(accepted, pConn, setStatus);
  };

  return (
    <Styled{{COMPONENT_CLASS_NAME}}Wrapper>
      <Input
        {...additionalProps}
        type='email'
        label={label}
        labelHidden={hideLabel}
        info={validatemessage || helperText}
        value={inputValue}
        status={status}
        placeholder={placeholder}
        disabled={disabled}
        readOnly={readOnly}
        required={required}
        data-testid={testId}
        onChange={(event: any) => {
          if (hasSuggestions) {
            setStatus(undefined);
          }
          setInputValue(event.target.value);
          if (value !== event.target.value) {
            // @ts-ignore
            handleEvent(actions, 'change', propName, event.target.value);
            hasValueChange.current = true;
          }
        }}
        onBlur={(event: any) => {
          if (!value || hasValueChange.current) {
            // @ts-ignore
            handleEvent(actions, 'blur', propName, event.target.value);
            if (hasSuggestions) {
              pConn.ignoreSuggestion('');
            }
            hasValueChange.current = false;
          }
        }}
        // @ts-ignore
        onFocus={actions.onFocus}
        onResolveSuggestion={onResolveSuggestionHandler}
      />
    </Styled{{COMPONENT_CLASS_NAME}}Wrapper>
  );
}

export default withConfiguration({{COMPONENT_CLASS_NAME}});