import styles from "./Panes.module.scss";
import { Text } from "preact-i18n";

import { connectState } from "../../../redux/connector";

import { voiceState, VoiceStatus } from "../../../lib/vortex/VoiceState";

import { TextReact } from "../../../lib/i18n";

import ComboBox from "../../../components/ui/ComboBox";
import Overline from "../../../components/ui/Overline";
import Tip from "../../../components/ui/Tip";
import {useEffect, useState} from "preact/hooks";
import { stopPropagation } from "../../../lib/stopPropagation";


const constraints = { audio: true }

export function Component() {
    const [mediaStream, setMediaStream] = useState<MediaStream|undefined>(undefined)
    const [mediaDevices, setMediaDevices] = useState<MediaDeviceInfo[] | undefined>(undefined);
    const [permission, setPermission] = useState<PermissionState | undefined>(undefined);
    const [error, setError] = useState<DOMException | undefined>(undefined)

    const askOrGetPermission = async () => {
        try {
            const mediaStream = await navigator.mediaDevices.getUserMedia(constraints)
            setMediaStream(mediaStream)
        } catch (err) {
            // The user has blocked the permission
            setError(err)
        }

        try {
            const { state } = await navigator.permissions.query({ name: 'microphone' })
            setPermission(state)

        } catch (err) {
            // the browser might not support `query` functionnality
            setError(err);
        }
    }

    useEffect(() => {
        askOrGetPermission()
    }, []);

    useEffect(() => {
        if (!mediaStream) {
            return;
        }

        navigator
            .mediaDevices
            .enumerateDevices()
            .then( devices => {
                setMediaDevices(devices)
            }, err => {
                setError(err)
            })

    }, [mediaStream])

    const handleAskForPermission = (ev: JSX.TargetedMouseEvent<HTMLAnchorElement>) => {
        stopPropagation(ev)
        setError(undefined)
        askOrGetPermission()
    }

    return (
        <>
        <div>
            <h3>
                <Text id="app.settings.pages.audio.input_device" />
            </h3>
            <ComboBox
                value={window.localStorage.getItem("audioInputDevice") ?? 0}
                onChange={(e) => changeAudioDevice(e.currentTarget.value, "input")}>
                {
                    mediaDevices?.filter(device => device.kind === "audioinput").map(device => {
                        return (
                            <option value={device.deviceId} key={device.deviceId}>
                                {device.label || <Text id="app.settings.pages.audio.device_label_NA"/>}
                            </option>
                        )
                    })
                }
            </ComboBox>
            {error && error.name === 'NotAllowedError' &&
                <Overline error="AudioPermissionBlock" type="error" block />}

            {error && permission === 'prompt' &&
                <Tip>
                    <TextReact id="app.settings.pages.audio.tip_retry" fields={{
                        retryBtn: (
                            <a onClick={handleAskForPermission}>
                                <Text id="app.settings.pages.audio.button_retry" />
                            </a>
                        ),
                    }}/>
                </Tip>
            }
        </div>
        </>
    );
}

function changeAudioDevice(deviceId: string, deviceType: string) {
    if(deviceType === "input") {
        window.localStorage.setItem("audioInputDevice", deviceId)
        if(voiceState.isProducing("audio")) {
            voiceState.stopProducing("audio");
            voiceState.startProducing("audio");
        }
    }else if(deviceType === "output") {
        window.localStorage.setItem("audioOutputDevice", deviceId)
    }
}

export const Audio = connectState(Component, () => {
    return;
});