import React, { forwardRef } from "react";
import classNames from "classnames";
import styles from "./Button.module.css";
import { ReactComponent as MicIcon } from "../icons/Mic.svg";
import { ReactComponent as MuteMicIcon } from "../icons/MuteMic.svg";
import { ReactComponent as VideoIcon } from "../icons/Video.svg";
import { ReactComponent as DisableVideoIcon } from "../icons/DisableVideo.svg";
import { ReactComponent as HangupIcon } from "../icons/Hangup.svg";
import { ReactComponent as ScreenshareIcon } from "../icons/Screenshare.svg";
import { useButton } from "@react-aria/button";
import { useObjectRef } from "@react-aria/utils";

const variantToClassName = {
  default: [styles.button],
  toolbar: [styles.toolbarButton],
  icon: [styles.iconButton],
  copy: [styles.copyButton],
  iconCopy: [styles.iconCopyButton],
};

export const Button = forwardRef(
  (
    { variant = "default", on, off, iconStyle, className, children, ...rest },
    ref
  ) => {
    const buttonRef = useObjectRef(ref);
    const { buttonProps } = useButton(rest, buttonRef);

    // TODO: react-aria's useButton hook prevents form submission via keyboard
    // Remove the hack below after this is merged https://github.com/adobe/react-spectrum/pull/904
    let filteredButtonProps = buttonProps;

    if (rest.type === "submit" && !rest.onPress) {
      const { onKeyDown, onKeyUp, ...filtered } = buttonProps;
      filteredButtonProps = filtered;
    }

    return (
      <button
        className={classNames(
          variantToClassName[variant],
          styles[iconStyle],
          className,
          {
            [styles.on]: on,
            [styles.off]: off,
          }
        )}
        {...filteredButtonProps}
        ref={buttonRef}
      >
        {children}
      </button>
    );
  }
);

export function ButtonTooltip({ className, children }) {
  return (
    <div className={classNames(styles.buttonTooltip, className)}>
      {children}
    </div>
  );
}

export function MicButton({ muted, ...rest }) {
  return (
    <Button variant="toolbar" {...rest} off={muted}>
      <ButtonTooltip>
        {muted ? "Unmute microphone" : "Mute microphone"}
      </ButtonTooltip>
      {muted ? <MuteMicIcon /> : <MicIcon />}
    </Button>
  );
}

export function VideoButton({ muted, ...rest }) {
  return (
    <Button variant="toolbar" {...rest} off={muted}>
      <ButtonTooltip>
        {muted ? "Turn on camera" : "Turn off camera"}
      </ButtonTooltip>
      {muted ? <DisableVideoIcon /> : <VideoIcon />}
    </Button>
  );
}

export function ScreenshareButton({ enabled, className, ...rest }) {
  return (
    <Button variant="toolbar" {...rest} on={enabled}>
      <ButtonTooltip>
        {enabled ? "Stop sharing screen" : "Share screen"}
      </ButtonTooltip>
      <ScreenshareIcon />
    </Button>
  );
}

export function HangupButton({ className, ...rest }) {
  return (
    <Button
      variant="toolbar"
      className={classNames(styles.hangupButton, className)}
      {...rest}
    >
      <ButtonTooltip>Leave</ButtonTooltip>
      <HangupIcon />
    </Button>
  );
}
