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@@ -15,7 +15,17 @@ function getAttribute(el, attr, default_value) {
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return default_value;
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}
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+/**
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+ * Represents everything we know about a radio. This includes, but is not limited to, radiomanifest.xml.
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+ */
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class Radio {
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+
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+ /**
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+ * @param {Array} [sources] optional
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+ * @param {string} [scheduleURL]
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+ * @param {string} [showsURL]
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+ * @param {string} [feed]
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+ */
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constructor (sources, scheduleURL, showsURL, feed) {
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this.streaming = new RadioStreaming(sources)
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this.scheduleURL = scheduleURL
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@@ -26,31 +36,64 @@ class Radio {
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this.schedule = null
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}
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+ /**
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+ * @returns {RadioStreaming}
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+ */
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getStreaming () {
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return this.streaming
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}
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+ /**
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+ * Change radio name
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+ */
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setName (name) {
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this.name = name
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}
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+ /**
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+ *
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+ * @returns {Array<RadioShow>}
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+ */
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getShows() {
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return this.shows
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}
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+
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+ /**
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+ * @returns {RadioShow} The lookup is exact and case-sensitive. If no such show can be found, `null`
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+ * is returned.
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+ */
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getShowByName (showName) {
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if (this.shows === undefined) return null
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return this.shows.find(s => s.name === showName)
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}
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+ /**
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+ * @returns {RadioSchedule} If no schedule is present, `null` is returned.
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+ */
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getSchedule () {
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return this.schedule
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}
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+ /**
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+ * Find if a show is running at the given moment. If there's none, `null` is returned.
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+ * If possible, a complete {@link RadioShow} including full informations (from shows.xml) is returned.
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+ * If, instead, we know from the `schedule` that there must be a show, but have no additional detail, a
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+ * {@link RadioShow} object will be created on the fly.
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+ *
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+ * @param {ICAL.Time} [now] If omitted, the current time is used.
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+ * @returns {RadioShow} If we don't know what's going on at the given moment, `null` is returned.
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+ */
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getShowAtTime (now) {
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if (this.schedule === undefined || this.schedule === null) return null
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return this.getSchedule().getNowShow(now)
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}
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+ /**
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+ * This static method can create a Radio object from a valid radiomanifest.xml file
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+ *
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+ * @param xml An already parsed xml block
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+ * @returns {Radio}
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+ */
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static fromDOM (xml) {
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const doc = xml.cloneNode(true)
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let res = doc.evaluate('/radio-manifest/streaming/source', doc, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null)
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@@ -92,6 +135,10 @@ class Radio {
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}
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}
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+/**
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+ * Represents the streaming capabilities of a radio.
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+ * This has probably been derived from the <streaming> block in radiomanifest.xml
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+ */
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class RadioStreaming {
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constructor (sources) {
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this.sources = sources.sort(
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@@ -99,22 +146,34 @@ class RadioStreaming {
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)
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}
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+ /**
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+ * Get the list of possible options that are provided to the user
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+ * @returns {Array<string>}
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+ */
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getOptions() {
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return this.sources.map(function (x) {
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return x.getAttribute('name')
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})
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}
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- // this is private
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+
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+ /**
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+ * @private
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+ */
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getPriority(element) {
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return parseInt(getAttribute(element, 'priority', '1'))
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}
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- // this is private
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+ /**
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+ * @private
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+ */
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getTopPrioritySources() {
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var topPriority = this.getPriority(this.sources[0])
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return this.sources.filter(
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(src) => parseInt(src.getAttribute('priority'), 10) === topPriority
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)
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}
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+ /**
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+ * @return {string} url of the source. Note that this is much probably a playlist, in M3U format
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+ */
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getSource(name) {
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if (name === undefined) {
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return this.getTopPrioritySources()[0]
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@@ -126,6 +185,11 @@ class RadioStreaming {
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return s.getAttribute('src')
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}
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+ /**
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+ * This is your go-to function whenever you need a list of URLs to play.
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+ * They will be picked honoring priorities, and expanding the playlist source
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+ * @return {Array<string>}
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+ */
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async pickURLs() {
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var allSources = this.getTopPrioritySources()
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var allAudios = []
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@@ -136,12 +200,24 @@ class RadioStreaming {
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}
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return allAudios
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}
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+
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+ /**
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+ * Just like {@link RadioStreaming#pickURLs}, but get a single URL
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+ * @return {string}
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+ */
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async pickURL() {
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var allAudios = await this.pickURLs()
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return allAudios[0]
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}
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}
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+/**
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+ * Create everything you need - **you should start from here**
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+ *
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+ * @param {string} siteurl URL of website you want to load
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+ * @param {Object} options options. Currenly unused
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+ * @return {Radio}
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+ */
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async function get (siteurl, options) {
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let resp = await fetch(getManifestUrl(siteurl))
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let text = await resp.text()
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