"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const fs = require("fs");
const util_1 = require("util");
const axios_1 = require("axios");
const CallableInstance = require("callable-instance");
const html_entities_1 = require("html-entities");
const pngjs_1 = require("pngjs");
const puppeteer = require("playwright");
const sharp = require("sharp");
const temp = require("temp");
const loggers_1 = require("./loggers");
const koishi_1 = require("./koishi");
const utils_1 = require("./utils");
const xmlEntities = new html_entities_1.XmlEntities();
const typeInZH = {
    photo: '图片',
    video: '视频',
    animated_gif: 'GIF',
};
const logger = (0, loggers_1.getLogger)('webshot');
const axiosGet = (url, responseType, timeout = 150000) => {
    logger.info(`fetching ${url}`);
    return (0, axios_1.default)({
        method: 'get',
        url,
        responseType,
        timeout,
    }).then(res => {
        if (res.status === 200) {
            logger.info(`successfully fetched ${url}`);
            return res.data;
        }
        else {
            logger.error(`failed to fetch ${url}: ${res.status}`);
            throw new Error();
        }
    }).catch(err => {
        logger.error(`failed to fetch ${url}: ${err instanceof Error ? err.message : err}`);
        throw new Error();
    });
};
class Webshot extends CallableInstance {
    constructor(wsUrl, mode, onready) {
        super('webshot');
        this.connect = (onready) => axios_1.default.get(this.wsUrl)
            .then(res => {
            logger.info(`received websocket endpoint: ${JSON.stringify(res.data)}`);
            const browserType = Object.keys(res.data)[0];
            return puppeteer[browserType]
                .connect({ wsEndpoint: res.data[browserType] });
        })
            .then(browser => this.browser = browser)
            .then(() => {
            logger.info('launched puppeteer browser');
            if (onready)
                return onready();
        })
            .catch(error => this.reconnect(error, onready));
        this.reconnect = (error, onready) => {
            logger.error(`connection error, reason: ${error}`);
            logger.warn('trying to reconnect in 2.5s...');
            return (0, util_1.promisify)(setTimeout)(2500)
                .then(() => this.connect(onready));
        };
        this.renderWebshot = (url, height, webshotDelay, ...morePostProcessings) => {
            temp.track();
            const jpeg = (data) => data.pipe(sharp()).jpeg({ quality: 90, trellisQuantisation: true });
            const sharpToFile = (pic) => new Promise(resolve => {
                const webshotTempFilePath = temp.path({ suffix: '.jpg' });
                pic.toFile(webshotTempFilePath).then(() => resolve(`file://${webshotTempFilePath}`));
            });
            const promise = new Promise((resolve, reject) => {
                const width = 720;
                const zoomFactor = 2;
                logger.info(`shooting ${width}*${height} webshot for ${url}`);
                this.browser.newPage({
                    bypassCSP: true,
                    deviceScaleFactor: zoomFactor,
                    locale: 'ja-JP',
                    timezoneId: 'Asia/Tokyo',
                    userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
                })
                    .then(page => {
                    const startTime = new Date().getTime();
                    const getTimerTime = () => new Date().getTime() - startTime;
                    const getTimeout = () => Math.max(500, webshotDelay - getTimerTime());
                    const gotoUrlAndWaitForTweet = () => page.goto(url, { waitUntil: 'load', timeout: Math.min(10000, getTimeout()) })
                        .then(() => Promise.race([
                        page.waitForSelector('article', { state: 'attached', timeout: Math.min(10000, getTimeout()) }),
                        page.click('#placeholder+#ScriptLoadFailure input[value="Try again"]', { timeout: getTimeout() }),
                        page.waitForSelector('div[role="button"]>div>span>:text-matches("^やりなおす|更新$")', { state: 'attached', timeout: getTimeout() }).then(() => page.reload({ timeout: getTimeout() })),
                    ]))
                        .catch(err => {
                        if (err.name === 'TimeoutError' && webshotDelay > getTimerTime()) {
                            logger.warn(`navigation timed out after ${getTimerTime()} ms, retrying...`);
                            return gotoUrlAndWaitForTweet();
                        }
                        throw err;
                    });
                    page.setViewportSize({
                        width: width / zoomFactor,
                        height: height / zoomFactor,
                    })
                        .then(() => page.route('*://video.twimg.com/**', route => route.abort().then(() => page.evaluate(videoUrl => {
                        let videoUrls = window['__scrapedVideoUrls'];
                        if (!videoUrls)
                            videoUrls = window['__scrapedVideoUrls'] = [];
                        if (!videoUrls.includes(videoUrl)) {
                            videoUrls.push(videoUrl);
                            return videoUrl;
                        }
                    }, route.request().url())).then(videoUrl => {
                        if (videoUrl)
                            logger.info(`scraped ${route.request().url()} from page`);
                    }).catch(err => {
                        logger.error(`error aborting request to ${route.request().url()}, error: ${err}`);
                    })))
                        .then(gotoUrlAndWaitForTweet)
                        .then(() => page.addStyleTag({
                        content: 'header,#layers{display:none!important}article{background-color:transparent!important}' +
                            '[data-testid="caret"],[role="group"],[dir] div>a:nth-last-child(3)~span,' +
                            '[data-testid="tweet"] [class*=" "]+:last-child>*+[class*=" "]+[role="group"]~div{display:none!important}',
                    }))
                        .then(() => page.addStyleTag({
                        content: '*{font-family:-apple-system,".Helvetica Neue DeskInterface",' +
                            'Hiragino Sans,Hiragino Sans GB,sans-serif!important}' +
                            '*{-webkit-font-smoothing:antialiased!important;-webkit-locale:"ja"}',
                    }))
                        .then(() => page.evaluate(() => {
                        const poll = setInterval(() => {
                            document.querySelectorAll('div[data-testid="placementTracking"]').forEach(container => {
                                if (container.querySelector('div[role="button"] svg')) {
                                    container.innerHTML = container.innerHTML;
                                    clearInterval(poll);
                                }
                            });
                        }, 250);
                    }))
                        .then(() => page.waitForSelector('xpath=//section/*/*/div[.//article//a[@aria-describedby]/time]', { state: 'attached', timeout: getTimeout() }))
                        .then(handle => handle.evaluate(div => div.classList.add('mainTweet'))
                        .then(() => page.addStyleTag({ content: 'div.mainTweet~div{display:none;}' }))
                        .then(() => handle))
                        .then(handle => handle.$$('xpath=(.|preceding-sibling::*)//a[contains(@href,"content_you_see")]/../../..//*[@role="button"]')
                        .then(sensitiveToggles => {
                        const count = sensitiveToggles.length;
                        if (count)
                            logger.info(`found ${count} sensitive ${count === 1 ? 'tweet' : 'tweets'} on page, uncollapsing...`);
                        return (0, utils_1.chainPromises)(sensitiveToggles.map(toggle => () => toggle.click()));
                    })
                        .then(() => handle))
                        .then(handle => handle.$('[data-testid="tweet"]').then(owner => owner ? handle : null))
                        .catch((err) => {
                        if (err.name !== 'TimeoutError')
                            throw err;
                        logger.warn(`${err} (${getTimerTime()} ms)`);
                        return page.evaluate(() => document.documentElement.outerHTML).then(html => {
                            const path = temp.path({ suffix: '.html' });
                            fs.writeFileSync(path, html);
                            logger.warn(`saved debug html to ${path}`);
                        }).then(() => page.route('**/*', route => route.abort().catch(() => { }))).then(() => page.screenshot({ fullPage: true })).then(screenshot => {
                            sharpToFile(sharp(screenshot).jpeg({ quality: 90 })).then(fileUri => {
                                logger.warn(`saved debug screenshot to ${fileUri.slice(7)}`);
                            });
                        }).then(() => null);
                    })
                        .then(handle => {
                        if (handle === null)
                            throw new puppeteer.errors.TimeoutError();
                        let cropTop;
                        return (0, utils_1.chainPromises)(morePostProcessings.map(func => () => func(page, handle)))
                            .then(() => (0, util_1.promisify)(setTimeout)(getTimeout()))
                            .then(() => page.evaluate(() => document.documentElement.scrollTop))
                            .then(scrollTop => { cropTop = scrollTop * zoomFactor; })
                            .then(() => page.evaluate(() => document.activeElement.blur()))
                            .then(() => handle.evaluateHandle(div => {
                            const minHeight = Number(div.style.transform.match(/translateY\((.+)px\)/)[1]) + div.offsetHeight;
                            const parentDiv = div.parentElement;
                            parentDiv.setAttribute('style', `min-height: ${minHeight}px; margin: 0 -1px; padding: 0 1px`);
                            return parentDiv;
                        }))
                            .catch(err => {
                            logger.error(`error while parsing content height, failing this webshot`);
                            throw err;
                        })
                            .then(parentDivHandle => parentDivHandle.screenshot())
                            .then(screenshot => [screenshot, cropTop]);
                    })
                        .then(([screenshot, cropTop]) => {
                        new pngjs_1.PNG({
                            filterType: 4,
                            deflateLevel: 0,
                        }).on('parsed', function () {
                            let png = this;
                            if (cropTop > 0) {
                                logger.info(`cropping screenshot at y offset ${cropTop}...`);
                                png = new pngjs_1.PNG({ width: this.width, height: this.height - cropTop });
                                this.bitblt(png, 0, cropTop, png.width, png.height, 0, 0);
                            }
                            sharpToFile(jpeg(png.pack())).then(path => {
                                logger.info(`finished webshot for ${url}`);
                                resolve({ path, boundary: png.height });
                            });
                        }).parse(screenshot);
                    })
                        .catch(err => {
                        if (err instanceof Error && err.name !== 'TimeoutError')
                            throw err;
                        logger.error(`error shooting webshot for ${url}, could not load web page of tweet`);
                        resolve({ path: '', boundary: 0 });
                    })
                        .finally(() => { page.close(); });
                })
                    .catch(reject);
            });
            return promise.then(data => {
                if (data.boundary === null) {
                    return this.renderWebshot(url, height + 1920, webshotDelay, ...morePostProcessings);
                }
                else
                    return data.path;
            }).catch(error => this.reconnect(error)
                .then(() => this.renderWebshot(url, height, webshotDelay, ...morePostProcessings)));
        };
        this.fetchMedia = (url) => (url.match(/^file:/) ? Promise.resolve(url) : axiosGet(url, 'arraybuffer').then(data => {
            var _a;
            return (ext => {
                const mediaTempFilePath = temp.path({ suffix: `.${ext}` });
                fs.writeFileSync(mediaTempFilePath, Buffer.from(data));
                return `file://${mediaTempFilePath}`;
            })(((_a = (/\?format=([a-z]+)&/.exec(url))) !== null && _a !== void 0 ? _a : (/.*\/.*\.([^?]+)/.exec(url)))[1]);
        })).then(path => {
            switch ((/.*\.(.*?)$/.exec(path) || [])[1]) {
                case 'jpg':
                case 'png':
                    return koishi_1.Message.Image(path);
                case 'mp4':
                case 'ts':
                    return koishi_1.Message.Video(path);
            }
            logger.warn('unable to find MIME type of fetched media, failing this fetch');
            throw Error();
        });
        if (this.mode = mode) {
            onready();
        }
        else {
            this.wsUrl = wsUrl;
            this.connect(onready);
        }
    }
    webshot(tweets, callback, webshotDelay) {
        const promises = tweets.map(({ data, includes: { media, users: [user] } }, index) => {
            let promise = (0, util_1.promisify)(setTimeout)(webshotDelay / 4 * index).then(() => {
                logger.info(`working on ${user.username}/${data.id}`);
            });
            let messageChain = '';
            let truncatedAt;
            let author = `${user.name} (@${user.username}):\n`;
            author += `${new Date(data.created_at)}\n`;
            let text = data.text;
            const rtTweet = (data.referenced_tweets || []).find(refTweet => refTweet.type === 'retweeted');
            if (rtTweet) {
                const match = /^(RT @.+?: )(.*)/.exec(text);
                author += match[1];
                text = match[2];
            }
            const urls = data.entities && data.entities.urls || [];
            promise = promise.then(() => {
                if (urls.length) {
                    urls.forEach(url => {
                        text = text.replace(new RegExp(url.url, 'gm'), url.expanded_url);
                    });
                }
                if (media) {
                    media.forEach(entity => {
                        const mediaUrl = urls.find((url) => url.media_key);
                        if (!mediaUrl)
                            return;
                        text = text.replace(new RegExp(mediaUrl.expanded_url, 'gm'), this.mode === 1 ? `[${typeInZH[entity.type]}]` : '');
                    });
                }
                if (this.mode > 0)
                    messageChain += (author + xmlEntities.decode(text));
            });
            if (this.mode === 0) {
                const url = `https://mobile.twitter.com/${user.username}/status/${data.id}`;
                promise = promise.then(() => this.renderWebshot(url, 1920, webshotDelay, (_, tweetHandle) => tweetHandle.evaluate(div => {
                    try {
                        const selector = '[data-testid="tweet"] :nth-child(2)>:first-child a';
                        const getProfileUrl = () => (div.querySelector(selector) || { href: '' }).href;
                        const ownerProfileUrl = getProfileUrl();
                        const bottom = div;
                        while (div = div.previousElementSibling) {
                            if (getProfileUrl() !== ownerProfileUrl || div === bottom.previousElementSibling)
                                continue;
                            const top = document.documentElement.scrollTop = window.scrollY + div.getBoundingClientRect().top;
                            if (top > 10)
                                return div.querySelector('article a[aria-label]').href.replace(/.*\/status\//, '');
                        }
                    }
                    catch (_a) { }
                    document.documentElement.scrollTop = 0;
                }).then((id) => {
                    if (!id)
                        return;
                    logger.info(`thread too long, truncating at tweet ${id}...`);
                    truncatedAt = id;
                }), (page, tweetHandle) => tweetHandle.evaluate(div => {
                    const cardMediaDiv = div.querySelector('div[data-testid^="card.layout"][data-testid$=".media"]');
                    const cardMedia = cardMediaDiv === null || cardMediaDiv === void 0 ? void 0 : cardMediaDiv.querySelector('img, video');
                    if (!cardMedia)
                        return {};
                    let match;
                    if (cardMedia.tagName === 'IMG' && typeof cardMedia.getAttribute('src') === 'string') {
                        match = /^(.*\/card_img\/(\d+)\/.+\?format=.*)&name=/.exec(cardMedia.getAttribute('src'));
                    }
                    if (cardMedia.tagName === 'VIDEO' && typeof cardMedia.getAttribute('poster') === 'string') {
                        match = /^(.*\/amplify_video_thumb\/(\d+)\/img\/.*$)/.exec(cardMedia.getAttribute('poster'));
                        if (!match)
                            match = [, cardMedia.getAttribute('poster'), '.*'];
                    }
                    if (!match)
                        return {};
                    const [url, id] = match.slice(1);
                    return {
                        type: cardMedia.tagName,
                        entityBase: {
                            url,
                            media_key: `${{ IMG: 3, VIDEO: 7 }[cardMedia.tagName]}_${id}`,
                        }
                    };
                }).then(({ type, entityBase }) => {
                    if (!type)
                        return;
                    media || (media = []);
                    if (media.some(entity => entity.media_key === entityBase.media_key))
                        return;
                    if (type === 'IMG')
                        media.push(Object.assign(Object.assign({}, entityBase), { type: 'photo' }));
                    if (type === 'VIDEO')
                        page.evaluate(id_str => {
                            var _a;
                            return (_a = window['__scrapedVideoUrls']) === null || _a === void 0 ? void 0 : _a.find(videoUrl => new RegExp(`.*/amplify_video/${id_str}/pl/[^/]*\\.m3u8(?:\\?|$)`).exec(videoUrl));
                        }, entityBase.media_key.slice(2)).then(streamlistUrl => axiosGet(streamlistUrl, 'text')
                            .then(utils_1.M3u8.parseStreamlist)
                            .then(playlists => playlists.sort((pl1, pl2) => pl2.bandwidth - pl1.bandwidth)[0])
                            .then(({ bandwidth, playlistPath }) => {
                            const playlistUrl = new URL(playlistPath, streamlistUrl);
                            return axiosGet(playlistUrl.href, 'text')
                                .then(playlist => utils_1.M3u8.parsePlaylist(playlist))
                                .then(({ duration, segmentPaths, extension: ext }) => {
                                const mediaTempFilePath = temp.path({ suffix: `.${ext}` });
                                return (0, utils_1.chainPromises)(segmentPaths.map(path => () => axiosGet(new URL(path, playlistUrl).href, 'arraybuffer').then(data => {
                                    fs.writeFileSync(mediaTempFilePath, Buffer.from(data), { flag: 'a' });
                                })))
                                    .then(() => ({
                                    variants: [{
                                            bit_rate: bandwidth,
                                            content_type: { mp4: 'video/mp4', ts: 'video/mp2t' }[ext],
                                            url: `file://${mediaTempFilePath}`,
                                        }]
                                }));
                            });
                        })).then(videoInfo => media.push(Object.assign(Object.assign(Object.assign({}, entityBase), { type: 'video' }), videoInfo))).catch(error => {
                            logger.error(`error while fetching scraped video, error: ${error}`);
                            logger.warn('unable to fetch scraped video, ignoring...');
                        });
                })))
                    .then(fileurl => {
                    if (fileurl)
                        return koishi_1.Message.Image(fileurl);
                    return '[截图不可用] ' + author + text;
                })
                    .then(msg => {
                    if (msg)
                        messageChain += msg;
                });
            }
            if (1 - this.mode % 2)
                promise = promise.then(() => {
                    if (media) {
                        return (0, utils_1.chainPromises)(media.map(entity => () => {
                            let url;
                            if (entity.type === 'photo') {
                                url = entity.url.replace(/\.([a-z]+)$/, '?format=$1') + '&name=orig';
                            }
                            else {
                                url = entity.variants
                                    .filter(variant => variant.bit_rate !== undefined)
                                    .sort((var1, var2) => var2.bit_rate - var1.bit_rate)
                                    .map(variant => variant.url)[0];
                            }
                            const altMessage = `\n[失败的${typeInZH[entity.type]}：${url}]`;
                            return this.fetchMedia(url)
                                .catch(error => {
                                logger.warn('unable to fetch media, sending plain text instead...');
                                return altMessage;
                            })
                                .then(msg => { messageChain += msg; });
                        }));
                    }
                });
            promise = promise.then(() => {
                if (truncatedAt) {
                    messageChain += `\n回复此命令查看对话串中更早的推文：\n/twi_view ${truncatedAt}`;
                }
            });
            const quotedTweet = (data.referenced_tweets || []).find(refTweet => refTweet.type === 'quoted');
            if (quotedTweet) {
                promise = promise.then(() => {
                    messageChain += `\n回复此命令查看引用的推文：\n/twi_view ${quotedTweet.id}`;
                });
            }
            return promise.then(() => {
                logger.info(`done working on ${user.username}/${data.id}, message chain:`);
                logger.info(JSON.stringify(messageChain));
                let cacheId = data.id;
                if (rtTweet)
                    cacheId += `,rt:${rtTweet.id}`;
                callback(cacheId, messageChain, xmlEntities.decode(text), author);
            });
        });
        return Promise.all(promises).then();
    }
}
exports.default = Webshot;