import style from 'bundle-text:./style.less';

export default function artplayerPluginAds(option) {
    return (art) => {
        const {
            template: { $player },
            icons: { volume, volumeClose, fullscreenOn, fullscreenOff, loading },
            constructor: {
                validator,
                utils: { query, append, setStyle },
            },
        } = art;

        option = validator(
            {
                html: '',
                video: '',
                url: '',
                playDuration: 5,
                totalDuration: 10,
                muted: false,
                i18n: {
                    close: '关闭广告',
                    countdown: '%s秒',
                    detail: '查看详情',
                    canBeClosed: '%s秒后可关闭广告',
                },
                ...option,
            },
            {
                html: '?string',
                video: '?string',
                url: '?string',
                playDuration: 'number',
                totalDuration: 'number',
                muted: '?boolean',
                i18n: {
                    close: 'string',
                    countdown: 'string',
                    detail: 'string',
                    canBeClosed: 'string',
                },
            },
        );

        let $ads = null;
        let $timer = null;
        let $close = null;
        let $countdown = null;
        let $control = null;
        let $loading = null;

        let time = 0;
        let timer = null;
        let isEnd = false;
        let isInit = false;
        let isCanClose = false;

        function getI18n(val, str) {
            return str.replace('%s', val);
        }

        function skip() {
            isEnd = true;
            art.play();
            if (option.video) $ads.pause();
            setStyle(art.template.$ads, 'display', 'none');
            art.emit('artplayerPluginAds:skip', option);
        }

        function play() {
            if (isEnd) return;

            timer = setTimeout(() => {
                time += 1;

                const playDuration = option.playDuration - time;
                if (playDuration >= 1) {
                    $close.innerHTML = getI18n(playDuration, option.i18n.canBeClosed);
                } else {
                    $close.innerHTML = option.i18n.close;
                    if (!isCanClose) {
                        isCanClose = true;
                    }
                }

                $countdown.innerHTML = getI18n(option.totalDuration - time, option.i18n.countdown);

                if (time >= option.totalDuration) {
                    skip();
                } else {
                    play();
                }
            }, 1000);
        }

        function pause() {
            if (isEnd) return;
            clearTimeout(timer);
        }

        function show() {
            art.template.$ads = append($player, '<div class="artplayer-plugin-ads"></div>');

            $ads = append(
                art.template.$ads,
                option.video
                    ? `<video class="artplayer-plugin-ads-video" src="${option.video}" loop playsInline></video>`
                    : `<div class="artplayer-plugin-ads-html">${option.html}</div>`,
            );

            $loading = append(art.template.$ads, '<div class="artplayer-plugin-ads-loading"></div>');
            append($loading, loading);

            $timer = append(
                art.template.$ads,
                `<div class="artplayer-plugin-ads-timer">
                    <div class="artplayer-plugin-ads-close">${
                        option.playDuration <= 0
                            ? option.i18n.close
                            : getI18n(option.playDuration, option.i18n.canBeClosed)
                    }</div>
                    <div class="artplayer-plugin-ads-countdown">${getI18n(
                        option.totalDuration,
                        option.i18n.countdown,
                    )}</div>
                </div>`,
            );

            $close = query('.artplayer-plugin-ads-close', $timer);
            $countdown = query('.artplayer-plugin-ads-countdown', $timer);

            if (option.playDuration >= option.totalDuration) {
                setStyle($close, 'display', 'none');
            }

            art.proxy($close, 'click', () => {
                if (isCanClose) {
                    skip();
                }
            });

            $control = append(
                art.template.$ads,
                `<div class="artplayer-plugin-ads-control">
                    <div class="artplayer-plugin-ads-detail">${option.i18n.detail}</div>
                    <div class="artplayer-plugin-ads-muted"></div>
                    <div class="artplayer-plugin-ads-fullscreen"></div>
                </div>`,
            );

            const $detail = query('.artplayer-plugin-ads-detail', $control);
            const $muted = query('.artplayer-plugin-ads-muted', $control);
            const $fullscreen = query('.artplayer-plugin-ads-fullscreen', $control);

            if (option.url) {
                art.proxy($detail, 'click', () => {
                    window.open(option.url);
                    art.emit('artplayerPluginAds:click', option);
                });
            } else {
                setStyle($detail, 'display', 'none');
            }

            if (option.video) {
                const $volume = append($muted, volume);
                const $volumeClose = append($muted, volumeClose);
                setStyle($volumeClose, 'display', 'none');

                // If the ad was set to muted initially, match the icon
                if (option.muted) {
                    $ads.muted = true;
                    setStyle($volume, 'display', 'none');
                    setStyle($volumeClose, 'display', 'inline-flex');
                }

                art.proxy($muted, 'click', () => {
                    $ads.muted = !$ads.muted;
                    if ($ads.muted) {
                        setStyle($volume, 'display', 'none');
                        setStyle($volumeClose, 'display', 'inline-flex');
                    } else {
                        setStyle($volume, 'display', 'inline-flex');
                        setStyle($volumeClose, 'display', 'none');
                    }
                });
            } else {
                setStyle($muted, 'display', 'none');
            }

            const $fullscreenOn = append($fullscreen, fullscreenOn);
            const $fullscreenOff = append($fullscreen, fullscreenOff);
            setStyle($fullscreenOff, 'display', 'none');

            art.proxy($fullscreen, 'click', () => {
                art.fullscreen = !art.fullscreen;
                if (art.fullscreen) {
                    setStyle($fullscreenOn, 'display', 'inline-flex');
                    setStyle($fullscreenOff, 'display', 'none');
                } else {
                    setStyle($fullscreenOn, 'display', 'none');
                    setStyle($fullscreenOff, 'display', 'inline-flex');
                }
            });

            art.proxy($ads, 'click', () => {
                if (option.url) window.open(option.url);
                art.emit('artplayerPluginAds:click', option);
            });
        }

        function init() {
            if (isInit) return;
            isInit = true;

            show();
            art.pause();

            if (option.video) {
                art.proxy($ads, 'error', skip);
                art.proxy($ads, 'loadedmetadata', () => {
                    play();
                    $ads.play();
                    setStyle($timer, 'display', 'flex');
                    setStyle($control, 'display', 'flex');
                    setStyle($loading, 'display', 'none');
                });
            } else {
                play();
                setStyle($timer, 'display', 'flex');
                setStyle($control, 'display', 'flex');
                setStyle($loading, 'display', 'none');
            }

            art.proxy(document, 'visibilitychange', () => {
                if (document.hidden) {
                    pause();
                } else {
                    play();
                }
            });
        }

        art.on('ready', () => {
            art.once('play', init);
            art.once('video:playing', init);
        });

        return {
            name: 'artplayerPluginAds',
            skip,
            pause,
            play,
        };
    };
}

artplayerPluginAds.env = process.env.NODE_ENV;
artplayerPluginAds.version = process.env.APP_VER;
artplayerPluginAds.build = process.env.BUILD_DATE;

if (typeof document !== 'undefined') {
    if (!document.getElementById('artplayer-plugin-ads')) {
        const $style = document.createElement('style');
        $style.id = 'artplayer-plugin-ads';
        $style.textContent = style;
        document.head.appendChild($style);
    }
}

if (typeof window !== 'undefined') {
    window['artplayerPluginAds'] = artplayerPluginAds;
}