sync/lib/channel/library.js

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var ChannelModule = require("./module");
var Flags = require("../flags");
var util = require("../utilities");
var InfoGetter = require("../get-info");
var db = require("../database");
var Media = require("../media");
const TYPE_UNCACHE = {
id: "string"
};
const TYPE_SEARCH_MEDIA = {
source: "string,optional",
query: "string"
};
function LibraryModule(channel) {
ChannelModule.apply(this, arguments);
}
LibraryModule.prototype = Object.create(ChannelModule.prototype);
LibraryModule.prototype.onUserPostJoin = function (user) {
user.socket.typecheckedOn("uncache", TYPE_UNCACHE, this.handleUncache.bind(this, user));
user.socket.typecheckedOn("searchMedia", TYPE_SEARCH_MEDIA, this.handleSearchMedia.bind(this, user));
};
LibraryModule.prototype.cacheMedia = function (media) {
if (this.channel.is(Flags.C_REGISTERED) && !util.isLive(media.type)) {
db.channels.addToLibrary(this.channel.name, media);
}
};
LibraryModule.prototype.getItem = function (id, cb) {
db.channels.getLibraryItem(this.channel.name, id, function (err, row) {
if (err) {
cb(err, null);
} else {
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var meta = JSON.parse(row.meta || "{}");
cb(null, new Media(row.id, row.title, row.seconds, row.type, meta));
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}
});
};
LibraryModule.prototype.handleUncache = function (user, data) {
if (!this.channel.is(Flags.C_REGISTERED)) {
return;
}
if (!this.channel.modules.permissions.canUncache(user)) {
return;
}
var chan = this.channel;
chan.activeLock.lock();
db.channels.deleteFromLibrary(chan.name, data.id, function (err, res) {
if (chan.dead || err) {
return;
}
chan.logger.log("[library] " + user.getName() + " deleted " + data.id +
"from the library");
chan.activeLock.release();
});
};
LibraryModule.prototype.handleSearchMedia = function (user, data) {
var query = data.query.substring(0, 100);
var searchYT = function () {
InfoGetter.Getters.ytSearch(query.split(" "), function (e, vids) {
if (!e) {
user.socket.emit("searchResults", {
source: "yt",
results: vids
});
}
});
};
if (data.source === "yt" || !this.channel.is(Flags.C_REGISTERED)) {
searchYT();
} else {
db.channels.searchLibrary(this.channel.name, query, function (err, res) {
if (err) {
res = [];
}
if (res.length === 0) {
return searchYT();
}
res.sort(function (a, b) {
var x = a.title.toLowerCase();
var y = b.title.toLowerCase();
return (x === y) ? 0 : (x < y ? -1 : 1);
});
res.forEach(function (r) {
r.duration = util.formatTime(r.seconds);
});
user.socket.emit("searchResults", {
source: "library",
results: res
});
});
}
};
module.exports = LibraryModule;