printInputOffset.ts
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/**
* 与 Web 管理端 labelFormDatePreview 一致：templateProductDefaults 中日期/时间/时长存 JSON
* `{"unit":"Days","value":"2"}`，预览与打印时按 BaseTime 解析为 config.text。
*/
import type { SystemTemplateElementBase } from '../print/types/printer'
const OFFSET_UNITS = new Set([
'Minutes',
'Hours',
'Days',
'Weeks',
'Months (30 Day)',
'Years',
])
export function applyOffsetToDate (base: Date, amount: number, unit: string): Date {
const d = new Date(base.getTime())
const u = String(unit ?? '').trim()
switch (u) {
case 'Minutes':
d.setMinutes(d.getMinutes() + amount)
break
case 'Hours':
d.setHours(d.getHours() + amount)
break
case 'Days':
d.setDate(d.getDate() + amount)
break
case 'Weeks':
d.setDate(d.getDate() + amount * 7)
break
case 'Months (30 Day)':
d.setDate(d.getDate() + amount * 30)
break
case 'Years':
d.setFullYear(d.getFullYear() + amount)
break
default:
d.setDate(d.getDate() + amount)
}
return d
}
function formatDateByPreset (format: string, date: Date): string {
const yyyy = String(date.getFullYear())
const yy = yyyy.slice(-2)
const mm = String(date.getMonth() + 1).padStart(2, '0')
const dd = String(date.getDate()).padStart(2, '0')
const hh = String(date.getHours()).padStart(2, '0')
const min = String(date.getMinutes()).padStart(2, '0')
switch (format) {
case 'DD/MM/YYYY':
return `${dd}/${mm}/${yyyy}`
case 'MM/DD/YYYY':
return `${mm}/${dd}/${yyyy}`
case 'DD/MM/YY':
return `${dd}/${mm}/${yy}`
case 'MM/DD/YY':
return `${mm}/${dd}/${yy}`
case 'MM/YY':
return `${mm}/${yy}`
case 'MM/DD':
return `${mm}/${dd}`
case 'MM':
return mm
case 'DD':
return dd
case 'YY':
return yy
case 'YYYY-MM-DD':
return `${yyyy}-${mm}-${dd}`
case 'YYYY-MM-DD HH:mm':
return `${yyyy}-${mm}-${dd} ${hh}:${min}`
case 'HH:mm':
return `${hh}:${min}`
default:
return String(format || '')
.replace(/YYYY/g, yyyy)
.replace(/YY/g, yy)
.replace(/MM/g, mm)
.replace(/DD/g, dd)
.replace(/HH/g, hh)
.replace(/mm/g, min)
}
}
export function tryParsePrintInputOffsetStored (
raw: string | null | undefined,
): { unit: string; value: string } | null {
const t = String(raw ?? '').trim()
if (!t.startsWith('{')) return null
try {
const o = JSON.parse(t) as unknown
if (o == null || typeof o !== 'object' || Array.isArray(o)) return null
const rec = o as Record<string, unknown>
const unit = String(rec.unit ?? rec.Unit ?? '').trim()
const value = String(rec.value ?? rec.Value ?? '')
if (!unit || !OFFSET_UNITS.has(unit)) return null
return { unit, value }
} catch {
return null
}
}
/** 与 Web isDateTimeDataEntryField 对齐（App 侧元素无 typeAdd 时用命名兜底） */
export function isUniAppDateTimeOffsetField (el: SystemTemplateElementBase): boolean {
const type = String(el.type || '').toUpperCase()
const cfg = (el.config || {}) as Record<string, unknown>
if (type === 'TIME' || type === 'DURATION') return true
if (type !== 'DATE') return false
const it = String(cfg.inputType ?? cfg.InputType ?? '').toLowerCase()
if (it === 'datetime' || it === 'date') return true
const ta = String((el as { typeAdd?: string }).typeAdd ?? '').trim().toLowerCase().replace(/\s+/g, ' ')
if (ta === 'label_duration date' || ta.includes('duration date')) return true
const nameHint = `${el.elementName ?? ''} ${el.inputKey ?? ''}`.toLowerCase()
if (/(durationdate|duration_date|duration\s*date)/.test(nameHint)) return true
return false
}
/**
* 将 templateProductDefaults 里单格字符串转为画布用的展示文案（相对 now）。
* 非 JSON 或无法解析时返回原串（兼容旧版已展开的日期文案）。
*/
export function resolveTemplateDefaultValueForElement (
el: SystemTemplateElementBase,
stored: string,
now: Date,
): string {
const s = String(stored ?? '').trim()
if (!s) return ''
if (!isUniAppDateTimeOffsetField(el)) return s
const parsed = tryParsePrintInputOffsetStored(s)
if (!parsed) return s
const amount = Number(String(parsed.value).trim())
const unit = parsed.unit || 'Days'
if (!Number.isFinite(amount) || String(parsed.value).trim() === '') return ''
const type = String(el.type || '').toUpperCase()
const cfg = (el.config || {}) as Record<string, unknown>
const d = applyOffsetToDate(now, amount, unit)
if (type === 'DATE') {
const it = String(cfg.inputType ?? cfg.InputType ?? '').toLowerCase()
const format =
(typeof cfg.format === 'string' && cfg.format.trim()
? cfg.format
: typeof cfg.Format === 'string' && cfg.Format.trim()
? cfg.Format
: it === 'datetime'
? 'YYYY-MM-DD HH:mm'
: 'DD/MM/YYYY') || 'DD/MM/YYYY'
return formatDateByPreset(format, d)
}
if (type === 'TIME') {
return formatDateByPreset('HH:mm', d)
}
return `${amount} ${unit}`
}