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handle loading args in queue

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nklhrstv 2020-04-22 12:02:40 +03:00
parent 36ad3af9b4
commit ec7bb07c12
1 changed files with 113 additions and 72 deletions
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185
src/video/withStreamingServer.js
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@ -7,8 +7,11 @@ function withStreamingServer(Video) {
function StreamingServerVideo(options) {
var video = new Video(options);
var events = new EventEmitter();
var destroyed = false;
var loaded = false;
var stream = null;
var dispatchArgsLoadingQueue = [];
events.on('error', function() { });
@ -20,10 +23,15 @@ function withStreamingServer(Video) {
Object.freeze(error);
events.emit('error', error);
if (error.critical) {
video.dispatch({ commandName: 'stop' });
dispatch({ commandName: 'stop' });
}
}
function flushDispatchArgsQueue(dispatchArgsQueue) {
while (dispatchArgsQueue.length > 0) {
var args = dispatchArgsQueue.shift();
dispatch(args);
}
}
function on(eventName, listener) {
if (!destroyed) {
events.on(eventName, listener);
@ -32,88 +40,121 @@ function withStreamingServer(Video) {
video.on(eventName, listener);
}
function dispatch(args) {
if (!destroyed && args && args.commandName === 'load') {
stream = null;
video.dispatch({ commandName: 'stop' });
if (args.commandArgs && args.commandArgs.stream && typeof args.commandArgs.stream.infoHash === 'string' && typeof args.commandArgs.streamingServerUrl === 'string') {
stream = args.commandArgs.stream;
if (stream.fileIdx !== null && !isNaN(stream.fileIdx)) {
video.dispatch({
commandName: 'load',
commandArgs: {
autoplay: args.commandArgs.autoplay,
time: args.commandArgs.time,
stream: {
url: UrlUtils.resolve(args.commandArgs.streamingServerUrl, stream.infoHash + '/' + String(stream.fileIdx))
}
}
});
} else {
fetch(UrlUtils.resolve(args.commandArgs.streamingServerUrl, stream.infoHash + '/create'), {
method: 'POST',
headers: {
'content-type': 'application/json'
},
body: JSON.stringify({
torrent: {
infoHash: stream.infoHash
}
})
}).then(function(resp) {
return resp.json();
}).then(function(resp) {
if (stream !== args.commandArgs.stream) {
if (!destroyed && args) {
if (typeof args.commandName === 'string') {
switch (args.commandName) {
case 'addSubtitlesTracks': {
if (!loaded && stream !== null) {
dispatchArgsLoadingQueue.push(args);
return;
}
if (!Array.isArray(resp.files) || resp.files.length === 0) {
onError({
message: 'Unable to get files from torrent',
critical: true
});
return;
}
break;
}
case 'stop': {
loaded = false;
stream = null;
dispatchArgsLoadingQueue = [];
break;
}
case 'load': {
dispatch({ commandName: 'stop' });
if (args.commandArgs && typeof args.commandArgs.streamingServerUrl === 'string' && args.commandArgs.stream) {
if (typeof args.commandArgs.stream.infoHash === 'string') {
stream = args.commandArgs.stream;
if (stream.fileIdx !== null && !isNaN(stream.fileIdx)) {
video.dispatch({
commandName: 'load',
commandArgs: {
autoplay: args.commandArgs.autoplay,
time: args.commandArgs.time,
stream: {
url: UrlUtils.resolve(args.commandArgs.streamingServerUrl, stream.infoHash + '/' + String(stream.fileIdx))
}
}
});
loaded = true;
} else {
fetch(UrlUtils.resolve(args.commandArgs.streamingServerUrl, stream.infoHash + '/create'), {
method: 'POST',
headers: {
'content-type': 'application/json'
},
body: JSON.stringify({
torrent: {
infoHash: stream.infoHash
}
})
}).then(function(resp) {
return resp.json();
}).then(function(resp) {
if (stream !== args.commandArgs.stream) {
return;
}
var fileIdx = resp.files.reduce((fileIdx, _, index, files) => {
if (files[index].length > files[fileIdx].length) {
return index;
}
if (!Array.isArray(resp.files) || resp.files.length === 0) {
onError({
message: 'Unable to get files from torrent',
critical: true
});
return;
}
return fileIdx;
}, 0);
video.dispatch({
commandName: 'load',
commandArgs: {
autoplay: args.commandArgs.autoplay,
time: args.commandArgs.time,
stream: {
url: UrlUtils.resolve(args.commandArgs.streamingServerUrl, stream.infoHash + '/' + String(fileIdx))
var fileIdx = resp.files.reduce((fileIdx, _, index, files) => {
if (files[index].length > files[fileIdx].length) {
return index;
}
return fileIdx;
}, 0);
video.dispatch({
commandName: 'load',
commandArgs: {
autoplay: args.commandArgs.autoplay,
time: args.commandArgs.time,
stream: {
url: UrlUtils.resolve(args.commandArgs.streamingServerUrl, stream.infoHash + '/' + String(fileIdx))
}
}
});
loaded = true;
flushDispatchArgsQueue(dispatchArgsLoadingQueue);
}).catch(function(error) {
if (stream !== args.commandArgs.stream) {
return;
}
onError({
message: 'Unable to get files from torrent',
critical: true,
error: error
});
});
}
return;
}
});
}).catch(function(error) {
if (stream !== args.commandArgs.stream) {
return;
}
onError({
message: 'Unable to get files from torrent',
critical: true,
error: error
});
});
break;
}
case 'destroy': {
dispatch({ commandName: 'stop' });
destroyed = true;
events.removeAllListeners();
events.on('error', function() { });
break;
}
}
} else if (typeof args.propName === 'string') {
if (!loaded && stream !== null && ['paused', 'time', 'selectedSubtitlesTrackId', 'subtitlesDelay'].indexOf(args.propName) !== -1) {
dispatchArgsLoadingQueue.push(args);
return;
}
}
} else {
if (args && args.commandName === 'destroy') {
destroyed = true;
stream = null;
events.removeAllListeners();
events.on('error', function() { });
}
video.dispatch(args);
}
video.dispatch(args);
}
this.on = on;