王明 / Food-Labeling-Management-Platform

  import type {
    LabelTemplateData,
    SystemLabelTemplate,
    SystemTemplateElementBase,
  } from '../print/types/printer'
  
  /**
   * 打印/预览 printInputJson 的 key：与接口文档一致优先 inputKey，否则 elementName，最后兜底元素 id。
   * 兼容根字段与 config 内 InputKey（部分模板把键写在 config）。
   */
  export function printInputJsonKeyForElement(el: SystemTemplateElementBase): string {
    const cfg = el.config || {}
    const top =
      el.inputKey ??
      (el as { InputKey?: string }).InputKey ??
      cfg.inputKey ??
      cfg.InputKey ??
      el.elementName ??
      (el as { ElementName?: string }).ElementName ??
      cfg.elementName ??
      cfg.ElementName
    const s = top != null ? String(top).trim() : ''
    if (s) return s
    return String(el.id ?? '').trim()
  }
  
  export function isPrintInputOptionsElement(el: SystemTemplateElementBase): boolean {
    const vst = String(el.valueSourceType || '').toUpperCase()
    if (vst !== 'PRINT_INPUT') return false
    const c = el.config || {}
    const it = String(c.inputType ?? c.InputType ?? '').toLowerCase()
    if (it === 'options') return true
    const mid = c.multipleOptionId ?? c.MultipleOptionId
    return typeof mid === 'string' && mid.trim() !== ''
  }
  
  /** PRINT_INPUT 且非多选项字典（无 effective multipleOptionId）：需用户在页面上输入 */
  export function isPrintInputFreeFieldElement(el: SystemTemplateElementBase): boolean {
    const vst = String(el.valueSourceType || '').toUpperCase()
    if (vst !== 'PRINT_INPUT') return false
    return !isPrintInputOptionsElement(el)
  }
  
  /** 从模板初始 config 读出已选（接口预览可能已带 selectedOptionValues） */
  export function readSelectionsFromTemplate(template: SystemLabelTemplate): Record<string, string[]> {
    const out: Record<string, string[]> = {}
    for (const el of template.elements || []) {
      if (!isPrintInputOptionsElement(el)) continue
      const raw = el.config?.selectedOptionValues ?? el.config?.SelectedOptionValues
      if (Array.isArray(raw) && raw.length) {
        out[el.id] = raw.map((x: unknown) => String(x))
      }
    }
    return out
  }
  
  /**
   * 将多选结果写回 config（画布与打印用 text 展示「字典名: 值」或 prefix+值）
   */
  /** 从预览模板 config 初始化自由输入（如 WEIGHT 的 value、DATE 已算好的 text） */
  export function readFreeFieldValuesFromTemplate(template: SystemLabelTemplate): Record<string, string> {
    const out: Record<string, string> = {}
    for (const el of template.elements || []) {
      if (!isPrintInputFreeFieldElement(el)) continue
      const c = el.config || {}
      const type = String(el.type || '').toUpperCase()
      let initial = ''
      if (type === 'WEIGHT') {
        const v = c.value ?? c.Value
        if (v != null && String(v).trim() !== '') initial = String(v).trim()
      } else {
        const fmt = String(c.format ?? c.Format ?? '').trim()
        const t = String(c.text ?? c.Text ?? '').trim()
        if (t && (!fmt || t !== fmt)) initial = t
      }
      out[el.id] = initial
    }
    return out
  }
  
  export function ensureFreeFieldKeys(
    template: SystemLabelTemplate,
    existing: Record<string, string>
  ): Record<string, string> {
    const out = { ...existing }
    for (const el of template.elements || []) {
      if (!isPrintInputFreeFieldElement(el)) continue
      if (!(el.id in out)) out[el.id] = ''
    }
    return out
  }
  
  /**
   * 将自由输入写回 config：画布用 text 展示；若有 unit 则拼在数值后（如 500g）。
   */
  export function mergePrintInputFreeFields(
    template: SystemLabelTemplate,
    values: Record<string, string>
  ): SystemLabelTemplate {
    return {
      ...template,
      elements: (template.elements || []).map((el) => {
        if (!isPrintInputFreeFieldElement(el)) return el
        const cfg = { ...el.config }
        const raw = String(values[el.id] ?? '').trim()
        const unit = String(cfg.unit ?? cfg.Unit ?? '').trim()
        const type = String(el.type || '').toUpperCase()
  
        if (!raw) {
          if (type === 'DATE' || type === 'TIME') {
            const fmt = String(cfg.format ?? cfg.Format ?? '')
            return { ...el, config: { ...cfg, text: fmt } }
          }
          if (type === 'WEIGHT') {
            return { ...el, config: { ...cfg, text: '', value: '' } }
          }
          const ph = String(
            cfg.placeholder ?? cfg.Placeholder ?? cfg.defaultValue ?? cfg.DefaultValue ?? ''
          ).trim()
          return { ...el, config: { ...cfg, text: ph } }
        }
  
        const display = unit && !raw.endsWith(unit) ? `${raw}${unit}` : raw
        const next = { ...cfg, text: display } as Record<string, any>
        if (type === 'WEIGHT') {
          next.value = raw
        }
        return { ...el, config: next }
      }),
    }
  }
  
  export function mergePrintOptionSelections(
    template: SystemLabelTemplate,
    selections: Record<string, string[]>,
    dictNames: Record<string, string>
  ): SystemLabelTemplate {
    return {
      ...template,
      elements: (template.elements || []).map((el) => {
        if (!isPrintInputOptionsElement(el)) return el
        const sel = selections[el.id]
        if (!sel || sel.length === 0) return el
        const cfg = { ...el.config }
        cfg.selectedOptionValues = sel
        const dictLabel = dictNames[el.id] || 'Options'
        const prefix = String(cfg.prefix ?? cfg.Prefix ?? '').trim()
        const answers = sel.join(', ')
        cfg.text = prefix ? `${prefix}${answers}` : `${dictLabel}: ${answers}`
        return { ...el, config: cfg }
      }),
    }
  }
  
  export function printInputJsonFromSelections(
    template: SystemLabelTemplate,
    selections: Record<string, string[]>
  ): Record<string, unknown> {
    const out: Record<string, unknown> = {}
    for (const el of template.elements || []) {
      if (!isPrintInputOptionsElement(el)) continue
      const sel = selections[el.id]
      if (!sel || !sel.length) continue
      const key = printInputJsonKeyForElement(el)
      if (!key) continue
      out[key] = sel.length === 1 ? sel[0] : [...sel]
    }
    return out
  }
  
  export function printInputJsonFromFreeFields(
    template: SystemLabelTemplate,
    values: Record<string, string>
  ): Record<string, unknown> {
    const out: Record<string, unknown> = {}
    for (const el of template.elements || []) {
      if (!isPrintInputFreeFieldElement(el)) continue
      const key = printInputJsonKeyForElement(el)
      if (!key) continue
      const v = String(values[el.id] ?? '').trim()
      if (v === '') continue
      out[key] = v
    }
    return out
  }
  
  export function buildPrintInputJson(
    template: SystemLabelTemplate,
    optionSelections: Record<string, string[]>,
    freeFieldValues: Record<string, string>
  ): Record<string, unknown> {
    return {
      ...printInputJsonFromSelections(template, optionSelections),
      ...printInputJsonFromFreeFields(template, freeFieldValues),
    }
  }
  
  /**
   * 供接口 9 落库 `printInputJson`：在**纯 JSON 克隆**上再合并多选/自由输入，避免 Vue Proxy 嵌套 config
   * 在部分环境下 `JSON.stringify` 丢字段，导致服务端存下的 RenderDataJson 仍是设计器默认值（无日期、无多选）。
   */
  export function buildPrintPersistTemplateSnapshot(
    base: SystemLabelTemplate,
    optionSelections: Record<string, string[]>,
    freeFieldValues: Record<string, string>,
    dictNames: Record<string, string>
  ): SystemLabelTemplate {
    const cloned = JSON.parse(JSON.stringify(base)) as SystemLabelTemplate
    let m = mergePrintOptionSelections(cloned, optionSelections, dictNames)
    m = mergePrintInputFreeFields(m, freeFieldValues)
    return m
  }
  
  /** 本地打印机 / dataJson：与 printInputJson 同键，供模板 {{key}} 或 native 层合并 */
  export function printInputJsonToLabelTemplateData(pj: Record<string, unknown>): LabelTemplateData {
    const out: LabelTemplateData = {}
    for (const k of Object.keys(pj)) {
      const v = pj[k]
      if (v == null) continue
      if (typeof v === 'string' || typeof v === 'number') {
        out[k] = v
      } else if (Array.isArray(v)) {
        out[k] = v.map((x) => String(x)).join(', ')
      } else {
        out[k] = JSON.stringify(v)
      }
    }
    return out
  }
  
  /**
   * PRINT_INPUT 且为多选项字典：未至少选一项则不可打印。
   */
  export function validatePrintInputOptionsBeforePrint(
    template: SystemLabelTemplate,
    selections: Record<string, string[]>,
    dictLabels: Record<string, string>
  ): string | null {
    for (const el of template.elements || []) {
      if (!isPrintInputOptionsElement(el)) continue
      const sel = selections[el.id]
      if (!sel || sel.length === 0) {
        const name =
          dictLabels[el.id] ||
          el.elementName ||
          el.inputKey ||
          'options'
        return `Please select “${name}” before printing.`
      }
    }
    return null
  }
  
  /**
   * PRINT_INPUT 自由字段：未填写则不可打印。
   */
  export function validatePrintInputFreeFieldsBeforePrint(
    template: SystemLabelTemplate,
    values: Record<string, string>
  ): string | null {
    for (const el of template.elements || []) {
      if (!isPrintInputFreeFieldElement(el)) continue
      const raw = String(values[el.id] ?? '').trim()
      if (raw === '') {
        const name = el.elementName || el.inputKey || 'field'
        return `Please fill in “${name}” before printing.`
      }
    }
    return null
  }