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泰额版/Food Labeling Management App UniApp/src/utils/print/printRunDiagnostics.ts 1.31 KB
59e51671   “wangming”   1
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  /**
   * 单次「点击打印」任务的时间线(仅 JS,不依赖改 AAR)。
   * Logcat 搜关键词: [print-diag]
   * 预览页打印中可点「Log」弹窗整段复制截图。
   */
  
  let t0 = 0
  const lines: string[] = []
  const MAX_LINES = 120
  
  export function startPrintRunDiagnostics (): void {
    t0 = Date.now()
    lines.length = 0
    printRunDiag('session_start')
  }
  
  export function printRunDiag (msg: string, extra?: Record<string, string | number | boolean | undefined>): void {
    const dt = Date.now() - t0
    let s = `[+${dt}ms] ${msg}`
    if (extra && Object.keys(extra).length) {
      s += ` | ${Object.entries(extra)
        .filter(([, v]) => v !== undefined && v !== '')
        .map(([k, v]) => `${k}=${String(v)}`)
        .join(' ')}`
    }
    lines.push(s)
    if (lines.length > MAX_LINES) {
      lines.splice(0, lines.length - MAX_LINES)
    }
    try {
      console.warn('[print-diag]', s)
    } catch (_) {}
  }
  
  export function getPrintRunDiagnosticsText (): string {
    return lines.join('\n')
  }
  
  /** 弹窗安全长度(避免部分机型 showModal 截断过长无提示) */
  export function getPrintRunDiagnosticsTextForModal (maxChars = 3800): string {
    const full = getPrintRunDiagnosticsText()
    if (full.length <= maxChars) return full
540ac0e3   杨鑫   前端修改bug
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    return `...(start omitted, ${full.length - maxChars} chars)\n\n${full.slice(-maxChars)}`
59e51671   “wangming”   1
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  }