import React, { useState, useEffect, useRef } from 'react';
import { Props as ChatInputProps } from '../ChatInputs/ChatInputs';
import Microphone from '../icons/Microphone';
import Button from '../ui/Button';
import Tooltip from '../ui/Tooltip';
import cx from 'classnames';
import { useTranslation } from 'react-i18next';

export interface Props {
  listening?: ChatInputProps['listening'];
  stopAudio: ChatInputProps['stopAudio'];
  startListening: ChatInputProps['startListening'];
  stopListening: ChatInputProps['stopListening'];
}

const MicrophoneButton = ({
  listening,
  stopAudio,
  startListening,
  stopListening,
}: Props) => {
  const { t } = useTranslation();
  const [micBtnTooltip, setMicBtnTooltip] = useState<string | undefined>();

  const intervalRef = useRef<any>(null);

  const startHold = (
    e:
      | React.TouchEvent<HTMLButtonElement>
      | React.MouseEvent<Element, MouseEvent>
  ) => {
    e.preventDefault();
    e.stopPropagation();

    setMicBtnTooltip(t('write_and_speak.holdToSpeak') || 'Hold to record');

    if (intervalRef.current) return;
    intervalRef.current = setTimeout(() => {
      stopAudio();
      setMicBtnTooltip(
        t('write_and_speak.releaseToEndListening') || 'Release to end listening'
      );
      startListening();
    }, 300);
  };

  const stopHold = (e?: React.MouseEvent | React.TouchEvent) => {
    if (e) {
      e.preventDefault();
      e.stopPropagation();
    }
    
    if (intervalRef.current) {
      clearTimeout(intervalRef.current);
      intervalRef.current = null;
    }

    stopListening();
    setMicBtnTooltip(undefined);
  };

  const handleContextMenu = (e: React.MouseEvent) => {
    e.preventDefault();
    e.stopPropagation();
  };

  const handleTouchStart = (e: React.TouchEvent<HTMLButtonElement> | React.MouseEvent<Element, MouseEvent>) => {
    e.preventDefault();
    e.stopPropagation();
    startHold(e);
  };

  const handleTouchEnd = (e: React.TouchEvent<HTMLButtonElement> | React.MouseEvent<Element, MouseEvent>) => {
    e.preventDefault();
    e.stopPropagation();
    stopHold(e);
  };

  useEffect(() => {
    return () => stopHold();
  }, []);

  return (
    <Tooltip
      visible={!!micBtnTooltip}
      content={
        <span>
          {micBtnTooltip ||
            t('write_and_speak.pressAndHoldToSpeak') ||
            'Press and hold to speak'}
        </span>
      }
      align="topLeft"
    >
      <div onContextMenu={handleContextMenu}>
        <Button
          primary
          className={cx('memori-chat-inputs--mic', {
            'memori-chat-inputs--mic--listening': listening,
          })}
          title={
            listening
              ? t('write_and_speak.micButtonPopoverListening') || 'Listening'
              : t('write_and_speak.micButtonPopover') || 'Start listening'
          }
          onMouseDown={startHold}
          onTouchStart={handleTouchStart}
          onMouseUp={stopHold}
          onTouchEnd={handleTouchEnd}
          onMouseLeave={stopHold}
          shape="circle"
          icon={<Microphone />}
        />
      </div>
    </Tooltip>
  );
};

export default MicrophoneButton;