113 lines
2.8 KiB
JavaScript
113 lines
2.8 KiB
JavaScript
function loadTemplateAsync(path) {
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const result = new Promise(resolve => {
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const xhttp = new XMLHttpRequest()
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xhttp.onreadystatechange = function () {
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if (this.readyState == 4) {
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if (this.status == 200) resolve(this.responseText)
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if (this.status == 404) resolve(`<div>Page not found: ${path}</div>`)
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}
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}
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xhttp.open('GET', path, true)
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xhttp.send()
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})
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return result
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}
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function imgSizeFit(img, maxWidth = 1024, maxHeight = 768) {
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let ratio = Math.min(
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1,
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maxWidth / img.naturalWidth,
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maxHeight / img.naturalHeight
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)
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return {width: img.naturalWidth * ratio, height: img.naturalHeight * ratio}
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}
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async function hash(string) {
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const utf8 = new TextEncoder().encode(string)
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const hashBuffer = await crypto.subtle.digest('SHA-256', utf8)
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const hashArray = Array.from(new Uint8Array(hashBuffer))
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const hashHex = hashArray
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.map(bytes => bytes.toString(16).padStart(2, '0'))
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.join('')
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return hashHex
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}
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function isJson(str) {
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if (typeof str !== 'string') {
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return false
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}
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try {
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JSON.parse(str)
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return true
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} catch (error) {
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return false
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}
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}
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function satOrBtc(val, showUnit = true, showSats = false) {
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const value = showSats
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? LNbits.utils.formatSat(val)
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: val == 0
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? 0.0
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: (val / 100000000).toFixed(8)
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if (!showUnit) return value
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return showSats ? value + ' sat' : value + ' BTC'
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}
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function timeFromNow(time) {
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// Get timestamps
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let unixTime = new Date(time).getTime()
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if (!unixTime) return
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let now = new Date().getTime()
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// Calculate difference
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let difference = unixTime / 1000 - now / 1000
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// Setup return object
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let tfn = {}
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// Check if time is in the past, present, or future
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tfn.when = 'now'
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if (difference > 0) {
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tfn.when = 'future'
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} else if (difference < -1) {
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tfn.when = 'past'
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}
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// Convert difference to absolute
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difference = Math.abs(difference)
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// Calculate time unit
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if (difference / (60 * 60 * 24 * 365) > 1) {
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// Years
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tfn.unitOfTime = 'years'
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tfn.time = Math.floor(difference / (60 * 60 * 24 * 365))
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} else if (difference / (60 * 60 * 24 * 45) > 1) {
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// Months
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tfn.unitOfTime = 'months'
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tfn.time = Math.floor(difference / (60 * 60 * 24 * 45))
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} else if (difference / (60 * 60 * 24) > 1) {
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// Days
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tfn.unitOfTime = 'days'
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tfn.time = Math.floor(difference / (60 * 60 * 24))
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} else if (difference / (60 * 60) > 1) {
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// Hours
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tfn.unitOfTime = 'hours'
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tfn.time = Math.floor(difference / (60 * 60))
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} else if (difference / 60 > 1) {
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// Minutes
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tfn.unitOfTime = 'minutes'
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tfn.time = Math.floor(difference / 60)
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} else {
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// Seconds
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tfn.unitOfTime = 'seconds'
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tfn.time = Math.floor(difference)
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}
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// Return time from now data
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return `${tfn.time} ${tfn.unitOfTime}`
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}
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