lc
8c7f633541
- var→const/let, function→arrow/class across all 13 JS files - Timer: prototype→class with ES6 getters - plan days: IIFE→Array.from declarative generation - storage/plan: unified formatDate via util.js - Bugfix: getPlanDay now filters by planId (plan switch accuracy) - Bugfix: getTodayRecord searches all months (cross-month boundary) - WXML/WXSS unchanged; public API unchanged
78 lines
1.9 KiB
JavaScript
78 lines
1.9 KiB
JavaScript
class Timer {
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constructor(options = {}) {
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this.onTick = options.onTick || (() => {})
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this.onComplete = options.onComplete || (() => {})
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this._duration = 0
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this._remaining = 0
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this._elapsed = 0
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this._startTime = 0
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this._pausedTime = 0
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this._intervalId = null
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this._running = false
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this._paused = false
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this._completed = false
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}
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start(duration) {
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this._duration = duration
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this._remaining = duration
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this._elapsed = 0
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this._completed = false
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this._running = true
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this._paused = false
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this._startTime = Date.now()
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this._tick()
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this._intervalId = setInterval(() => { this._tick() }, 1000)
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}
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pause() {
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if (!this._running || this._paused) return
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this._paused = true
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this._pausedTime = Date.now()
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clearInterval(this._intervalId)
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this._intervalId = null
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}
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resume() {
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if (!this._running || !this._paused) return
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this._startTime += Date.now() - this._pausedTime
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this._paused = false
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this._tick()
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this._intervalId = setInterval(() => { this._tick() }, 1000)
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}
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stop() {
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this._running = false
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this._paused = false
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clearInterval(this._intervalId)
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this._intervalId = null
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return this._elapsed
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}
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_tick() {
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if (!this._running || this._paused) return
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this._elapsed = Math.floor((Date.now() - this._startTime) / 1000)
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this._remaining = Math.max(0, this._duration - this._elapsed)
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this.onTick({
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remaining: this._remaining,
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elapsed: this._elapsed,
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duration: this._duration
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})
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if (this._remaining <= 0 && !this._completed) {
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this._completed = true
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this.onComplete({ elapsed: this._elapsed, duration: this._duration })
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}
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}
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get isRunning() { return this._running && !this._paused }
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get isPaused() { return this._paused }
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get isCompleted() { return this._completed }
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get remaining() { return this._remaining }
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get elapsed() { return this._elapsed }
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}
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module.exports = Timer
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