filmout_manager/dist/index.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
require("dotenv/config");
const express_1 = __importDefault(require("express"));
const promises_1 = __importDefault(require("fs/promises"));
const body_parser_1 = __importDefault(require("body-parser"));
const uuid_1 = require("uuid");
const Handlebars = __importStar(require("handlebars"));
const ws_1 = require("ws");
const log_1 = require("./log");
const env_1 = require("./env");
const files_1 = require("./files");
const testimage_1 = require("./testimage");
const fd_1 = require("./fd");
const display_1 = require("./display");
const ffmpeg_1 = require("./ffmpeg");
const ffprobe_1 = require("./ffprobe");
const camera_1 = require("./camera");
const sequence_1 = require("./sequence");
const image_1 = require("./image");
let mock = false;
const log = (0, log_1.createLog)('fm');
const app = (0, express_1.default)();
let wss;
let fd;
let display;
let ffmpeg;
let ffprobe;
let image;
let camera;
let sequence;
let index;
let focusImage = null;
let framingImage = null;
let port;
let wsPort;
let sequences;
let videos;
let width;
let height;
log.info('Starting filmout_manager...');
app.use(body_parser_1.default.json());
app.use(body_parser_1.default.urlencoded({ extended: true }));
app.use('/static', express_1.default.static('./static'));
async function createTemplate(filePath) {
    let tmpl;
    try {
        tmpl = await promises_1.default.readFile(filePath, 'utf8');
    }
    catch (err) {
        log.error(err);
        return null;
    }
    return Handlebars.compile(tmpl);
}
async function settings() {
    let sequencesExists = false;
    let videosExists = false;
    if ((0, env_1.envString)('FD', null) === null) {
        log.error('Please include an FD value containing the path to your fd binary in .env');
        process.exit(1);
    }
    else {
        log.info(`FD=${process.env['FD']}`);
    }
    if ((0, env_1.envString)('FFMPEG', null) === null) {
        log.error('Please include an FFMPEG value containing the path to your ffmpeg binary in .env');
        process.exit(1);
    }
    else {
        log.info(`FFMPEG=${process.env['FFMPEG']}`);
    }
    if ((0, env_1.envInt)('WIDTH', null) === null) {
        log.error('Please include a WIDTH value containing the width of the screen you are using in .env');
        process.exit(2);
    }
    else {
        width = (0, env_1.envInt)('WIDTH', 0);
        log.info(`WIDTH=${width}`);
    }
    if ((0, env_1.envInt)('HEIGHT', null) === null) {
        log.error('Please include a HEIGHT value containing the height of the screen you are using in .env');
        process.exit(3);
    }
    else {
        height = (0, env_1.envInt)('HEIGHT', 0);
        log.info(`HEIGHT=${height}`);
    }
    if ((0, env_1.envString)('FD_HOST', null) === null) {
        log.error('Please include a FD_HOST value with the host that the fd socket server is hosted on in .env');
        process.exit(4);
    }
    else {
        log.info(`FD_HOST=${process.env['FD_HOST']}`);
    }
    if ((0, env_1.envInt)('FD_PORT', null) === null) {
        log.error('Please include a FD_PORT value with the port that the fd socket server is hosted on in .env');
        process.exit(5);
    }
    else {
        log.info(`FD_PORT=${process.env['FD_PORT']}`);
    }
    if ((0, env_1.envInt)('PORT', null) === null) {
        log.error('Please include a PORT value with the port that the HTTP web process is hosted on in .env');
        process.exit(6);
    }
    else {
        port = (0, env_1.envInt)('PORT', 8080);
        log.info(`PORT=${port}`);
    }
    if ((0, env_1.envInt)('WS_PORT', null) === null) {
        log.error('Please include a WSPORT value with the port that the WebSocket web process is hosted on in .env');
        process.exit(6);
    }
    else {
        wsPort = (0, env_1.envInt)('WS_PORT', 8081);
        log.info(`WS_PORT=${wsPort}`);
    }
    if (wsPort === port) {
        log.error(`Websocket port (${wsPort}) should not be the same as HTTP port (${port})`);
        process.exit(7);
    }
    if ((0, env_1.envString)('SEQUENCES', null) === null) {
        log.error('Please include a SEQUENCES directory where the image sequences will be located in .env');
        process.exit(7);
    }
    else {
        sequences = (0, env_1.envString)('SEQUENCES', null);
        sequencesExists = await files_1.Files.init(sequences);
        if (!sequencesExists) {
            log.error(`The SEQUENCES directory in .env, ${sequences}, does not exist`);
            process.exit(8);
        }
        log.info(`SEQUENCES=${sequences}`);
    }
    if ((0, env_1.envString)('VIDEOS', null) === null) {
        log.error('Please include a VIDEOS directory where the videos will be located in .env');
        process.exit(7);
    }
    else {
        videos = (0, env_1.envString)('VIDEOS', null);
        videosExists = await files_1.Files.exists(videos);
        if (!sequencesExists) {
            log.error(`The VIDEOS directory in .env, ${videos}, does not exist`);
            process.exit(8);
        }
        log.info(`VIDEOS=${videos}`);
    }
    if ((0, env_1.envString)('MOCK', null) !== null) {
        if ((0, env_1.envString)('MOCK', '').trim().toLowerCase() === "true" || (0, env_1.envString)('MOCK', '').trim() === '1') {
            mock = true;
            log.info(`MOCK=true`);
        }
        else {
            mock = false;
        }
    }
}
function onWssConnection(ws, req) {
    let ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
    if (ip.substr(0, 7) === "::ffff:")
        ip = ip.substr(7);
    log.info(`Client ${ip} connected to WebSocket server`);
    ws.ip = ip;
    ws.session = (0, uuid_1.v4)();
    ws.on('message', function (data) { onClientMessage(data, ws); });
    sequence.updateClientsOnLoad();
}
async function onClientMessage(data, ws) {
    let msg = null;
    try {
        msg = JSON.parse(data);
    }
    catch (err) {
        log.error('Error parsing message', err);
    }
    if (msg !== null && typeof msg.cmd !== 'undefined') {
        await cmd(msg);
    }
}
async function cmd(msg) {
    let success = false;
    switch (msg.cmd) {
        case 'pong':
            //received keepalive
            break;
        case 'open':
            await cameraOpen();
            break;
        case 'close':
            await cameraClose();
            break;
        case 'select':
            await select(msg.state.sequence.hash);
            break;
        case 'start':
            await start();
            break;
        case 'stop':
            stop();
            break;
        case 'advance':
            frameAdvance();
            break;
        case 'rewind':
            frameRewind();
            break;
        case 'set':
            frameSet(msg.state.sequence.current);
            break;
        case 'exposure':
            exposureSet(msg.state.exposure);
            break;
        case 'focus':
            await focus();
            break;
        case 'framing':
            await framing();
            break;
        case 'offset':
            offset(msg);
            break;
        case 'size':
            size(msg);
            break;
        case 'scale':
            scale(msg);
            break;
        default:
            log.warn(`No matching command: ${msg.cmd}`);
    }
}
async function cameraOpen() {
    await camera.open();
    send({ cmd: 'open' });
}
async function cameraClose() {
    await camera.close();
    send({ cmd: 'close' });
}
function frameAdvance() {
    focusImage = null;
    sequence.frameAdvance();
}
function frameRewind() {
    focusImage = null;
    sequence.frameRewind();
}
function frameSet(frame) {
    focusImage = null;
    sequence.frameSet(frame);
}
function exposureSet(exposure) {
    if (exposure < 1) {
        exposure = 1;
    }
    sequence.setExposure(exposure);
}
async function select(id) {
    const sequencesArr = await files_1.Files.enumerateSequences();
    const seq = sequencesArr.find(el => el.hash === id);
    if (typeof seq == 'undefined' || seq == null) {
        log.error('Sequence not found, maybe deleted?', new Error(`Cannot find sequence ${id}`));
        return false;
    }
    await sequence.load(seq);
    return true;
}
async function start() {
    if (focusImage !== null) {
        await stopFocus();
    }
    if (framingImage !== null) {
        await stopFraming();
    }
    sequence.start();
}
function stop() {
    sequence.stop();
}
async function send(msg) {
    const msgStr = JSON.stringify(msg);
    wss.clients.forEach((client) => {
        client.send(msgStr);
    });
}
async function keepAlive() {
    await send({ cmd: 'ping' });
}
async function focus() {
    let pos;
    let dims;
    let state;
    let filePath;
    if (focusImage !== null) {
        await stopFocus();
        return;
    }
    if (sequence.isLoaded()) {
        state = sequence.getState();
        pos = {
            w: state.display.width,
            h: state.display.height,
            x: state.offset.x,
            y: state.offset.y
        };
    }
    else {
        dims = display.getScreen();
        pos = {
            w: dims.width,
            h: dims.height,
            x: 0,
            y: 0
        };
    }
    focusImage = await testimage_1.TestImage.Focus(pos.w, pos.h);
    await fd.load(focusImage, pos.x, pos.y, pos.w, pos.h);
    await fd.display(focusImage);
    send({ cmd: 'focus' });
}
async function stopFocus() {
    focusImage = null;
    await fd.stop(focusImage);
    send({ cmd: 'unfocus' });
}
async function framing() {
    let pos;
    let dims;
    let state;
    let filePath;
    if (framingImage !== null) {
        await stopFraming();
        return;
    }
    if (sequence.isLoaded()) {
        state = sequence.getState();
        pos = {
            w: state.display.width,
            h: state.display.height,
            x: state.offset.x,
            y: state.offset.y
        };
    }
    else {
        dims = display.getScreen();
        pos = {
            w: dims.width,
            h: dims.height,
            x: 0,
            y: 0
        };
    }
    framingImage = await testimage_1.TestImage.Frame(pos.w, pos.h);
    await fd.load(framingImage, pos.x, pos.y, pos.w, pos.h);
    await fd.display(framingImage);
    send({ cmd: 'framing' });
}
async function stopFraming() {
    framingImage = null;
    await fd.stop(framingImage);
    send({ cmd: 'unframing' });
}
function offset(msg) {
    let current = sequence.getCurrent();
    if (current !== null) {
        sequence.updateOffset(msg.x, msg.y);
    }
}
function size(msg) {
    let current = sequence.getCurrent();
    if (current !== null) {
        sequence.updateSize(msg.width, msg.height);
    }
}
function scale(msg) {
    let current = sequence.getCurrent();
    if (current !== null) {
        sequence.updateScale(msg.scale);
    }
}
app.get('/', async (req, res, next) => {
    const sequencesArr = await files_1.Files.enumerateSequences();
    //const videosArr : VideoObject[] = await Files.enumerateVideos(videos);
    const html = index({ sequences: sequencesArr, width, height, wsPort });
    res.send(html);
});
app.get('/:width/:height/image.jpg', async (req, res, next) => {
    let data;
    let current = sequence.getCurrent();
    let width = parseInt(req.params.width);
    let height = parseInt(req.params.height);
    if (focusImage !== null) {
        try {
            data = await image.thumbnail(focusImage, width, height);
            log.info(`Image: ${current.path} - ${width},${height}`);
        }
        catch (err) {
            log.error(`Error getting thumbnail of ${current}`, err);
            return next(new Error('Error getting thumbnail'));
        }
    }
    else if (framingImage !== null) {
        try {
            data = await image.thumbnail(framingImage, width, height);
            log.info(`Image: ${current.path} - ${width},${height}`);
        }
        catch (err) {
            log.error(`Error getting thumbnail of ${current}`, err);
            return next(new Error('Error getting thumbnail'));
        }
    }
    else if (current !== null) {
        try {
            data = await image.thumbnail(current.path, width, height);
            log.info(`Image: ${current.path} - ${width},${height}`);
        }
        catch (err) {
            log.error(`Error getting thumbnail of ${current}`, err);
            return next(new Error('Error getting thumbnail'));
        }
    }
    else {
        try {
            data = await image.blank(width, height);
            log.info(`Blank - ${width},${height}`);
        }
        catch (err) {
            log.error('Error generating blank image', err);
            return next(new Error('Error generating blank image'));
        }
    }
    res.contentType('image/jpeg');
    res.send(data);
});
async function main() {
    await settings();
    index = await createTemplate('./views/index.hbs');
    ffmpeg = new ffmpeg_1.FFMPEG((0, env_1.envString)('FFMPEG', 'ffmpeg'));
    ffprobe = new ffprobe_1.FFPROBE();
    image = new image_1.Image();
    camera = new camera_1.Camera(mock);
    display = new display_1.Display(width, height);
    fd = new fd_1.FD((0, env_1.envString)('FD', 'fd'), width, height, (0, env_1.envString)('FD_HOST', 'localhost'), (0, env_1.envInt)('FD_PORT', 8082), (0, env_1.envString)('FD_DISPLAY', null), mock);
    app.listen(port, async () => {
        log.info(`filmout_manager HTTP server running on port ${port}`);
    });
    wss = new ws_1.Server({ port: wsPort, clientTracking: true });
    wss.on('connection', onWssConnection);
    log.info(`filmout_manager WebSocket server running on port ${wsPort}`);
    //ffmpeg.listFormats();
    //log.info(await TestImage.Focus(640, 480));
    sequence = new sequence_1.Sequence(camera, fd, display, ffprobe, send);
    setInterval(keepAlive, 30000);
}
main();
process.stdin.resume(); // so the program will not close instantly
async function exitHandler(options, exitCode) {
    if (options.cleanup) {
        log.info(`Cleaning up...`);
        try {
            await fd.exit();
        }
        catch (err) {
            log.error('Error cleanly exiting filmout_display (fd) executable', err);
        }
    }
    exitCode == 'SIGINT' ? log.info(`exit: ${exitCode}`) : log.error(`exit: ${exitCode}`, new Error(`Exited with non-zero code: "${exitCode}"`));
    if (options.exit)
        process.exit();
}
// do something when app is closing
process.on('exit', exitHandler.bind(null, { cleanup: true }));
// catches ctrl+c event
process.on('SIGINT', exitHandler.bind(null, { exit: true }));
// catches "kill pid" (for example: nodemon restart)
process.on('SIGUSR1', exitHandler.bind(null, { exit: true }));
process.on('SIGUSR2', exitHandler.bind(null, { exit: true }));
// catches uncaught exceptions
process.on('uncaughtException', exitHandler.bind(null, { exit: true }));
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