mirror of
https://github.com/Bubka/2FAuth.git
synced 2024-11-22 16:23:18 +01:00
122 lines
4.0 KiB
Vue
122 lines
4.0 KiB
Vue
<script setup>
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const props = defineProps({
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step_count: {
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type: Number,
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default: 10
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},
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period : Number,
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generated_at: Number,
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autostart: {
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type: Boolean,
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default: true
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},
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})
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const generatedAt = ref(null)
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const remainingTimeout = ref(null)
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const initialStepToNextStepTimeout = ref(null)
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const stepToStepInterval = ref(null)
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const stepIndex = ref(null)
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// |<----period p----->|
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// | | |
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// |------- ··· ------------|--------|----------|---------->
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// | | | |
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// unix T0 Tp.start Tgen_at Tp.end
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// | | |
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// elapsedTimeInCurrentPeriod--|<------>| |
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// (in ms) | | |
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// ● ● ● ● ●|● ◌ ◌ ◌ ◌ |
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// | | || |
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// | | |<-------->|--remainingTimeBeforeEndOfPeriod (for remainingTimeout)
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// durationBetweenTwoSteps-->|-|< ||
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// (for stepToStepInterval) | | >||<---durationFromInitialToNextStep (for initialStepToNextStepTimeout)
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// |
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// |
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// stepIndex
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const elapsedTimeInCurrentPeriod = computed(() => {
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return generatedAt.value % props.period
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})
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const remainingTimeBeforeEndOfPeriod = computed(() => {
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return props.period - elapsedTimeInCurrentPeriod.value
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})
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const durationBetweenTwoSteps = computed(() => {
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return props.period / props.step_count
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})
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const initialStepIndex = computed(() => {
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let relativePosition = (elapsedTimeInCurrentPeriod.value * props.step_count) / props.period
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return (Math.floor(relativePosition) + 0)
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})
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const emit = defineEmits(['loop-started', 'loop-ended', 'stepped-up'])
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/**
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* Starts looping
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*/
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const startLoop = (generated_at = null) => {
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clearLooper()
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generatedAt.value = generated_at != null ? generated_at : props.generated_at
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emit('loop-started', initialStepIndex.value)
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stepIndex.value = initialStepIndex.value
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// Main timeout that runs until the end of the period
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remainingTimeout.value = setTimeout(function() {
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clearLooper()
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emit('loop-ended')
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}, remainingTimeBeforeEndOfPeriod.value * 1000);
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// During the remainingTimeout countdown we emit an event every durationBetweenTwoSteps seconds,
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// except for the first next dot
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let durationFromInitialToNextStep = (Math.ceil(elapsedTimeInCurrentPeriod.value / durationBetweenTwoSteps.value) * durationBetweenTwoSteps.value) - elapsedTimeInCurrentPeriod.value
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initialStepToNextStepTimeout.value = setTimeout(function() {
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if( durationFromInitialToNextStep > 0 ) {
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stepIndex.value += 1
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emit('stepped-up', stepIndex.value)
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}
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stepToStepInterval.value = setInterval(function() {
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stepIndex.value += 1
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emit('stepped-up', stepIndex.value)
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}, durationBetweenTwoSteps.value * 1000)
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}, durationFromInitialToNextStep * 1000)
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}
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/**
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* Resets all timers and internal vars
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*/
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const clearLooper = () => {
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clearTimeout(remainingTimeout.value)
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clearTimeout(initialStepToNextStepTimeout.value)
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clearInterval(stepToStepInterval.value)
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stepIndex.value = generatedAt.value = null
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}
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onMounted(() => {
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if (props.autostart == true) {
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startLoop()
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}
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})
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onUnmounted(() => {
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clearLooper()
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})
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defineExpose({
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startLoop,
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clearLooper,
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props
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})
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</script>
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<template>
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<div>
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</div>
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</template> |