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| const CountdownTimer = (() => {
let timer = null
let cachedHoliday = null
let dom = {}
let styleInjected = false
const config = {
units: {
day: { text: "今日", unit: "小时" },
week: { text: "本周", unit: "天" },
month: { text: "本月", unit: "天" },
year: { text: "本年", unit: "天" }
}
}
function initDOM() {
dom = {
eventName: document.getElementById("eventName"),
eventDate: document.getElementById("eventDate"),
daysUntil: document.getElementById("daysUntil"),
countRight: document.getElementById("countRight")
}
}
function isLeapYear(year) {
return (year % 4 === 0 && year % 100 !== 0) || (year % 400 === 0)
}
function getCalculators(now) {
return {
day: () => {
const hours = now.getHours()
return {
remaining: 24 - hours,
percentage: (hours / 24) * 100
}
},
week: () => {
const day = now.getDay()
const passed = day === 0 ? 6 : day - 1
return {
remaining: 6 - passed,
percentage: ((passed + 1) / 7) * 100
}
},
month: () => {
const total = new Date(now.getFullYear(), now.getMonth() + 1, 0).getDate()
const passed = now.getDate() - 1
return {
remaining: total - passed,
percentage: (passed / total) * 100
}
},
year: () => {
const year = now.getFullYear()
const start = new Date(year, 0, 1)
const total = isLeapYear(year) ? 366 : 365
const passed = Math.floor((now - start) / 86400000)
return {
remaining: total - passed,
percentage: (passed / total) * 100
}
}
}
}
async function fetchHoliday(year) {
const res = await fetch(`https://timor.tech/api/holiday/year/${year}/`)
const data = await res.json()
const holidays = []
for (const key in data.holiday) {
const h = data.holiday[key]
if (h.holiday) {
holidays.push({
name: h.name,
date: new Date(h.date)
})
}
}
holidays.sort((a, b) => a.date - b.date)
return holidays
}
async function getNextHoliday() {
if (cachedHoliday) return cachedHoliday
const today = new Date()
today.setHours(0,0,0,0)
const year = today.getFullYear()
const list = await fetchHoliday(year)
for (const h of list) {
const d = new Date(h.date)
d.setHours(0,0,0,0)
if (d >= today) {
cachedHoliday = h
return h
}
}
const nextYearList = await fetchHoliday(year + 1)
cachedHoliday = nextYearList[0]
return cachedHoliday
}
function injectStyles() {
if (styleInjected) return
const styles = `
.card-countdown .item-content { display:flex; }
.cd-count-left { position:relative; display:flex; flex-direction:column; margin-right:.8rem; line-height:1.5; align-items:center; justify-content:center; }
.cd-count-left .cd-text { font-size:14px; }
.cd-count-left .cd-name { font-weight:bold; font-size:18px; }
.cd-count-left .cd-time { font-size:30px; font-weight:bold; color:var(--anzhiyu-main); }
.cd-count-left .cd-date { font-size:12px; opacity:.6; }
.cd-count-left::after { content:""; position:absolute; right:-.8rem; width:2px; height:80%; background-color:var(--anzhiyu-main); opacity:.5; }
.cd-count-right { flex:1; margin-left:.8rem; display:flex; flex-direction:column; justify-content:space-between; }
.cd-count-item { display:flex; flex-direction:row; align-items:center; height:24px; }
.cd-item-name { font-size:14px; margin-right:.8rem; white-space:nowrap; }
.cd-item-progress { position:relative; display:flex; flex-direction:row; align-items:center; justify-content:space-between; height:100%; width:100%; border-radius:8px; background-color:var(--anzhiyu-background); overflow:hidden; }
.cd-progress-bar { height:100%; border-radius:8px; background-color:var(--anzhiyu-main); }
.cd-percentage, .cd-remaining { position:absolute; font-size:12px; margin:0 6px; transition:opacity .3s ease-in-out, transform .3s ease-in-out; }
.cd-many { color:#fff; }
.cd-remaining { opacity:0; transform:translateX(10px); }
.card-countdown .item-content:hover .cd-remaining { transform:translateX(0); opacity:1; }
.card-countdown .item-content:hover .cd-percentage { transform:translateX(-10px); opacity:0; }
`
const styleSheet = document.createElement("style")
styleSheet.id = "countdown-style"
styleSheet.textContent = styles
document.head.appendChild(styleSheet)
styleInjected = true
}
async function updateCountdown() {
if (!dom.eventName) return
try {
const now = new Date()
const target = await getNextHoliday()
const today = new Date()
today.setHours(0,0,0,0)
const targetDate = new Date(target.date)
targetDate.setHours(0,0,0,0)
const days = Math.round((targetDate - today) / 86400000)
dom.eventName.textContent = target.name
dom.eventDate.textContent = targetDate.toLocaleDateString('zh-CN')
dom.daysUntil.textContent = days
const calculators = getCalculators(now)
dom.countRight.innerHTML = Object.entries(config.units)
.map(([key,{text,unit}])=>{
const {remaining,percentage} = calculators[key]()
return `
<div class="cd-count-item">
<div class="cd-item-name">${text}</div>
<div class="cd-item-progress">
<div class="cd-progress-bar" style="width:${percentage}%;opacity:${percentage/100}"></div>
<span class="cd-percentage ${percentage>=46?'cd-many':''}">${percentage.toFixed(2)}%</span>
<span class="cd-remaining ${percentage>=60?'cd-many':''}">
<span class="cd-tip">还剩</span>${remaining}<span class="cd-tip">${unit}</span>
</span>
</div>
</div>
`
}).join('')
} catch (e) {
dom.eventName.textContent = "节日"
dom.eventDate.textContent = "--"
dom.daysUntil.textContent = "--"
}
}
function start() {
if (timer) clearInterval(timer)
initDOM()
injectStyles()
updateCountdown()
timer = setInterval(updateCountdown,600000)
}
document.addEventListener("DOMContentLoaded", start)
document.addEventListener("pjax:complete", start)
document.addEventListener("pjax:send", ()=> timer && clearInterval(timer))
return { start }
})()
|
