86 lines
2.4 KiB
JavaScript
86 lines
2.4 KiB
JavaScript
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/* helper so that video mixer connectors do not need to implement events */
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const haveValuesChanged = (lastArray, newArray) => {
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if(Array.isArray(lastArray) && Array.isArray(newArray)) {
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return lastArray.length !== newArray.length || lastArray.some((value, index) => value !== newArray[index])
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} else {
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return lastArray !== newArray
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}
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}
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const isSame = (one, two) => {
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if (typeof one !== typeof two) {
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return false
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} else if (typeof one === "object") {
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const keyOne = Object.keys(one)
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const keyTwo = Object.keys(two)
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if (keyOne.length !== keyTwo.length) {
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return false
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}
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for (const [k, v] of Object.entries(one)) {
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if (two[k] !== v) {
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return false
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}
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}
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return true
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} else {
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return one === two
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}
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}
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class MixerCommunicator {
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constructor(configuration, emitter) {
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this.configuration = configuration
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this.emitter = emitter
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this.currentPrograms = null
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this.currentPreviews = null
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this.currentConnection = null
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}
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notifyProgramChanged(programs, previews) {
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// @TODO: type check
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if (haveValuesChanged(programs, this.currentPrograms) || haveValuesChanged(previews, this.currentPreviews)) {
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this.currentPrograms = programs
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this.currentPreviews = previews
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this.emitter.emit('program.changed', programs, previews)
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}
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}
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notifyChannels(count, names) {
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// @TODO: type check
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if (count !== this.configuration.getChannelCount() || (names && !isSame(names, this.configuration.getChannelNames()))) {
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this.configuration.setChannelCount(count)
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this.configuration.setChannelNames(names)
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this.configuration.save()
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this.emitter.emit("config.changed")
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}
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}
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notifyMixerIsConnected() {
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if (this.currentConnection !== true) {
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this.currentConnection = true
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this.emitter.emit('mixer.connected')
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}
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}
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notifyMixerIsDisconnected() {
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if (this.currentConnection !== false) {
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this.currentConnection = false
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this.emitter.emit('mixer.disconnected')
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}
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}
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getCurrentPrograms() {
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return this.currentPrograms
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}
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getCurrentPreviews() {
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return this.currentPreviews
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}
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}
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module.exports = MixerCommunicator
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