import {
  normalizeLabelTemplateFromPreviewApi,
  parseLabelSizeText,
  sortElementsForPreview,
} from './labelPreview/normalizePreviewTemplate'
import {
  canPrintCurrentLabelViaNativeFastJob,
  printLabelPrintJobPayloadForCurrentPrinter,
  printSystemTemplateForCurrentPrinter,
  type SystemTemplatePrintCanvasRasterOptions,
} from './print/manager/printerManager'
import {
  buildLabelPrintJobPayload,
  setLastLabelPrintJobPayload,
} from './labelPreview/buildLabelPrintPayload'
import { getCurrentStoreId } from './stores'
import {
  ensureNativeClassicTransportIfPossible,
} from './print/printerConnection'
import {
  hydrateSystemTemplateImagesForPrint,
  resetHydrateImageDebugRecords,
} from './print/hydrateTemplateImagesForPrint'
import {
  normalizeTemplateForNativeFastJob,
  templateHasUnsupportedNativeFastElements,
} from './print/nativeTemplateElementSupport'
import { isTemplateWithinNativeFastPrintBounds } from './print/templatePhysicalMm'
import type {
  LabelTemplateData,
  SystemLabelTemplate,
  SystemTemplateElementBase,
} from './print/types/printer'
import type { PrintLogDataItemDto, PrintLogItemDto } from '../types/usAppLabeling'

function nonEmptyDisplay (value: string | null | undefined): string {
  if (value == null || value === '' || value === '无') return ''
  return String(value).trim()
}

/**
 * 接口 9/11 落库的快照里 elements[].config 已是最终展示值；重打时 data 不能再带 productName，
 * 否则 TEXT_PRODUCT 会优先解析为 productName（与预览里用 config.text 的「freeze」等冲突，出现两行 sandwich）。
 */
function labelTemplateDataForSnapshotReprint (): LabelTemplateData {
  return {}
}

function formatPriceLineForBake (config: Record<string, any>, rawText: string): string {
  const prefix = String(config.prefix ?? config.Prefix ?? '')
  const suffix = String(config.suffix ?? config.Suffix ?? '')
  const decRaw = config.decimal ?? config.Decimal
  const decimal = typeof decRaw === 'number' ? decRaw : Number(decRaw)
  const numericValue = Number(rawText)
  const value =
    !Number.isNaN(numericValue) && Number.isFinite(numericValue) && Number(decimal) >= 0
      ? numericValue.toFixed(Number(decimal))
      : rawText
  return `${prefix}${value}${suffix}`
}

/**
 * 原生快打插件对 TEXT_PRODUCT / TEXT_PRICE / DATE 等仍会按类型做绑定；重打时 dataJson 为空，
 * 必须把接口/落库快照里已填好的展示值焙成 TEXT_STATIC，否则会出现第二行商品名、价格 0、日期成 format 等问题。
 */
export function bakeReprintTemplateSnapshot (tmpl: SystemLabelTemplate): SystemLabelTemplate {
  const elements = (tmpl.elements || []).map((el) => {
    const vst = String(el.valueSourceType || '').toUpperCase()
    const type = String(el.type || '').toUpperCase()
    const cfg = { ...(el.config || {}) } as Record<string, any>

    const toStatic = (line: string): SystemTemplateElementBase => ({
      ...el,
      type: 'TEXT_STATIC',
      valueSourceType: 'FIXED',
      config: { ...cfg, text: line, Text: line },
    })

    if (vst === 'FIXED') {
      if (type === 'TEXT_PRODUCT' || type === 'TEXT_CATEGORY' || type === 'TEXT_LABEL_ID') {
        const t = String(cfg.text ?? cfg.Text ?? '').trim()
        if (t) return toStatic(t)
      }
      if (type === 'TEXT_PRICE') {
        const raw = String(cfg.text ?? cfg.Text ?? '').trim()
        if (raw) {
          const line = formatPriceLineForBake(cfg, raw)
          return {
            ...el,
            type: 'TEXT_STATIC',
            valueSourceType: 'FIXED',
            config: { ...cfg, text: line, Text: line, prefix: '', Prefix: '', suffix: '', Suffix: '' },
          }
        }
      }
    }

    if (vst === 'PRINT_INPUT') {
      if (type === 'DATE' || type === 'TIME' || type === 'DURATION') {
        const textVal = String(cfg.text ?? cfg.Text ?? '').trim()
        if (textVal) return toStatic(textVal)
      }
      if (type === 'WEIGHT') {
        const textVal = String(cfg.text ?? cfg.Text ?? '').trim()
        const v = String(cfg.value ?? cfg.Value ?? '').trim()
        const u = String(cfg.unit ?? cfg.Unit ?? '').trim()
        const line =
          textVal || (v && u ? (v.endsWith(u) ? v : `${v}${u}`) : v || u)
        if (line) return toStatic(line)
      }
      if (type === 'TEXT_STATIC') {
        const inputType = String(cfg.inputType ?? cfg.InputType ?? '').toLowerCase()
        if (inputType === 'number' || inputType === 'text') {
          const t = String(cfg.text ?? cfg.Text ?? '').trim()
          if (t) return toStatic(t)
        }
        if (
          inputType === 'options' ||
          cfg.multipleOptionId ||
          cfg.MultipleOptionId
        ) {
          const rawText = String(cfg.text ?? cfg.Text ?? '').trim()
          const sel = cfg.selectedOptionValues ?? cfg.SelectedOptionValues
          const joined =
            Array.isArray(sel) && sel.length ? sel.map((x: unknown) => String(x)).join(', ') : ''
          let line = rawText
          if (!line && joined) {
            const dictLabel = String(
              cfg.multipleOptionName ?? cfg.MultipleOptionName ?? 'Options',
            ).trim()
            const prefix = String(cfg.prefix ?? cfg.Prefix ?? '').trim()
            line = prefix ? `${prefix}${joined}` : `${dictLabel}: ${joined}`
          }
          if (line) return toStatic(line)
        }
      }
    }

    return el
  })
  return { ...tmpl, elements }
}

/**
 * 接口可能返回两类 renderConfigJson：
 * 1）与设计器 elements[] 单项同构（含 type、x、y、config）
 * 2）仅画布 config 快照（只有 text、fontSize 等），无 type、无坐标 —— 若直接当 element 传入，
 *    normalizeLabelTemplateFromPreviewApi 只读 e.config，会得到空 config，打印全空。
 */
function inferElementTypeFromPrintSnapshotConfig (cfg: Record<string, unknown>): string {
  const inputType = String(cfg.inputType ?? '').toLowerCase()
  const hasUnit = cfg.unit != null || cfg.Unit != null
  const hasValue = cfg.value != null || cfg.Value != null
  if (hasUnit && hasValue) return 'WEIGHT'

  if (
    typeof cfg.decimal === 'number' &&
    ('prefix' in cfg || 'suffix' in cfg)
  ) {
    return 'TEXT_PRICE'
  }

  if (cfg.format != null && inputType === 'datetime') return 'DATE'

  return 'TEXT_STATIC'
}

function applyRenderValueToSnapshotConfig (
  cfg: Record<string, unknown>,
  elementType: string,
  renderValue: string | null | undefined
): void {
  if (renderValue === undefined || renderValue === null) return
  const t = elementType.toUpperCase()
  const s = String(renderValue)
  if (t === 'WEIGHT') {
    cfg.value = s
    cfg.Value = s
    return
  }
  if (t === 'DATE' || t === 'TIME') {
    cfg.text = s
    cfg.Text = s
    return
  }
  cfg.text = s
  cfg.Text = s
}

function pageWidthPxFromPrintLogRow (row: PrintLogItemDto): number {
  const size = parseLabelSizeText(row.labelSizeText ?? null)
  const w = size?.width ?? 2
  return Math.max(96, Math.round(w * 96))
}

/**
 * 将 printDataList 单项转为 normalize 可用的 element；扁平 config 会包进 config 并补全坐标（纵向堆叠）。
 */
function elementFromPrintDataItem (
  item: PrintLogDataItemDto,
  index: number,
  pageWidthPx: number
): Record<string, unknown> {
  const raw =
    item.renderConfigJson ?? (item as unknown as { RenderConfigJson?: unknown }).RenderConfigJson
  if (raw == null) {
    throw new Error('Missing renderConfigJson')
  }

  let obj: Record<string, unknown>
  if (typeof raw === 'string') {
    try {
      obj = JSON.parse(raw) as Record<string, unknown>
    } catch {
      throw new Error('Invalid element JSON')
    }
  } else if (typeof raw === 'object' && !Array.isArray(raw)) {
    obj = { ...(raw as Record<string, unknown>) }
  } else {
    throw new Error('Invalid renderConfigJson')
  }

  const hasElementEnvelope =
    typeof obj.type === 'string' ||
    typeof obj.Type === 'string' ||
    typeof obj.elementType === 'string' ||
    'x' in obj ||
    'posX' in obj ||
    'config' in obj ||
    'ConfigJson' in obj ||
    'configJson' in obj

  if (hasElementEnvelope) {
    const base = { ...obj }
    if (item.elementId) {
      base.id = item.elementId
      base.Id = item.elementId
    }
    return base
  }

  const cfg = { ...obj }
  const inferredType = inferElementTypeFromPrintSnapshotConfig(cfg)
  applyRenderValueToSnapshotConfig(cfg, inferredType, item.renderValue)

  const lineHeight = 40
  const pad = 8
  return {
    id: item.elementId ?? `el-${index}`,
    type: inferredType,
    x: pad,
    y: pad + index * lineHeight,
    width: Math.max(40, pageWidthPx - pad * 2),
    height: lineHeight,
    rotation: 'horizontal',
    border: 'none',
    config: cfg,
    zIndex: index,
    orderNum: index,
  }
}

/**
 * 重打快照：勿调用 overlayProductNameOnPreviewTemplate。
 * 列表 printDataList 里 TEXT_PRODUCT 若丢字端，text 变空串会触发「占位」逻辑被整行替成 productName，出现两行 sandwich。
 */
function overlayReprintResolvedFields (
  tmpl: SystemLabelTemplate,
  row: PrintLogItemDto,
  data: LabelTemplateData
): SystemLabelTemplate {
  const t = tmpl
  const productName = nonEmptyDisplay(row.productName)
  /** 勿含空串：接口拆包丢字端时 text 为空，若把 '' 当占位并整行换成 productName，会与第一行商品名重复成两个 sandwich */
  const placeholders = new Set([
    '文本',
    'text',
    'Text',
    'TEXT',
    '名称',
    'name',
    'Name',
    'label',
    'Label',
  ])

  const elements = (t.elements || []).map((el) => {
    const type = String(el.type || '').toUpperCase()
    const cfg = { ...(el.config || {}) } as Record<string, unknown>
    const inputType = String(cfg.inputType ?? '').toLowerCase()

    if (type === 'TEXT_STATIC' || type === 'TEXT_PRODUCT') {
      if (cfg.multipleOptionId || inputType === 'options') {
        const rawText = String(cfg.text ?? cfg.Text ?? '').trim()
        const sel = cfg.selectedOptionValues
        const joined =
          Array.isArray(sel) && sel.length ? sel.map((x) => String(x)).join(', ') : ''
        /** 快照已存整行「Allergens: x, y」时勿改成仅选项值，否则缺行且缺前缀 */
        if (rawText && (rawText.includes(joined) || (joined && rawText.length > joined.length))) {
          return el
        }
        if (!rawText && joined) {
          const dictLabel = String(cfg.multipleOptionName ?? cfg.MultipleOptionName ?? 'Options').trim()
          const prefix = String(cfg.prefix ?? cfg.Prefix ?? '').trim()
          const line = prefix ? `${prefix}${joined}` : `${dictLabel}: ${joined}`
          return { ...el, config: { ...cfg, text: line } }
        }
        return el
      }
    }

    if ((type === 'TEXT_STATIC' || type === 'TEXT_PRODUCT') && productName) {
      const raw = String(cfg.text ?? cfg.Text ?? '').trim()
      const vstEl = String(el.valueSourceType || '').toUpperCase()
      /** FIXED 的 TEXT_PRODUCT 多为标签类型/说明，占位「名称」等不应被商品名替换（避免出现两行 sandwich） */
      if (type === 'TEXT_PRODUCT' && vstEl === 'FIXED') {
        return el
      }
      if (placeholders.has(raw)) {
        return {
          ...el,
          type: 'TEXT_PRODUCT',
          config: { ...cfg, text: productName },
        }
      }
    }

    if (type === 'DATE' && !String(cfg.text ?? cfg.Text ?? '').trim() && data.date) {
      return { ...el, config: { ...cfg, text: String(data.date) } }
    }
    if (type === 'TIME' && !String(cfg.text ?? cfg.Text ?? '').trim() && data.time) {
      return { ...el, config: { ...cfg, text: String(data.time) } }
    }

    return el
  })

  return { ...t, elements }
}

/** 打印日志重打：可选整页 canvas 光栅，与预览页「非 native 快打」分支一致 */
export type PrintFromPrintLogOptions = {
  printQty?: number
  onProgress?: (percent: number) => void
  canvasRaster?: SystemTemplatePrintCanvasRasterOptions
}

/**
 * 与 Label Preview 一致：一体机（经典蓝牙 + native-plugin 基座）且模板可走原生时走 printLabelPrintJob + 本地图片 hydration；
 * 普通蓝牙仍走 canvas 光栅或直发 TSC。
 */
async function printReprintTemplateWithPreviewStrategy (
  tmpl: SystemLabelTemplate,
  row: PrintLogItemDto,
  options: PrintFromPrintLogOptions,
): Promise<void> {
  await ensureNativeClassicTransportIfPossible()
  const templateData = labelTemplateDataForSnapshotReprint()
  const printInputJson: Record<string, unknown> = {}
  const tmplForNative = normalizeTemplateForNativeFastJob(tmpl, printInputJson as any)
  const useNative =
    canPrintCurrentLabelViaNativeFastJob()
    && isTemplateWithinNativeFastPrintBounds(tmpl)
    && !templateHasUnsupportedNativeFastElements(tmplForNative)

  const printQty = options.printQty ?? 1

  if (useNative) {
    resetHydrateImageDebugRecords()
    const hydrated = await hydrateSystemTemplateImagesForPrint(tmplForNative)
    const payload = buildLabelPrintJobPayload(hydrated, printInputJson, {
      labelCode: row.labelCode,
      productId: row.productId ?? undefined,
      printQuantity: printQty,
      locationId: getCurrentStoreId() || undefined,
    })
    setLastLabelPrintJobPayload(payload)
    await printLabelPrintJobPayloadForCurrentPrinter(
      payload,
      { printQty },
      options.onProgress,
    )
    return
  }

  await printSystemTemplateForCurrentPrinter(
    tmpl,
    templateData,
    { printQty, canvasRaster: options.canvasRaster },
    options.onProgress,
  )
}

/**
 * 使用接口 10 返回的 `printDataList` 组装模板并走当前打印机。
 */
function logReprintJson (label: string, data: unknown): void {
  try {
    console.log(`[Reprint] ${label}`, typeof data === 'string' ? data : JSON.stringify(data, null, 2))
  } catch {
    console.log(`[Reprint] ${label}`, data)
  }
}

export async function printFromPrintDataListRow (
  row: PrintLogItemDto,
  options: PrintFromPrintLogOptions = {}
): Promise<void> {
  const list =
    row.printDataList ??
    (row as unknown as { PrintDataList?: PrintLogDataItemDto[] }).PrintDataList ??
    []
  if (!Array.isArray(list) || list.length === 0) {
    throw new Error('No printDataList in record')
  }

  const pageW = pageWidthPxFromPrintLogRow(row)
  const elements = list.map((item, index) => elementFromPrintDataItem(item, index, pageW))
  const size = parseLabelSizeText(row.labelSizeText ?? null)
  const payload: Record<string, unknown> = {
    id: row.labelId || row.labelCode || 'reprint',
    name: 'Reprint',
    unit: size?.unit ?? 'inch',
    width: size?.width ?? 2,
    height: size?.height ?? 2,
    appliedLocation: 'ALL',
    elements,
  }

  console.log('[Reprint] 路径: printDataList 组装')
  logReprintJson('printDataList 原始', list)
  logReprintJson('组装的 template payload（normalize 前）', payload)

  let tmpl = normalizeLabelTemplateFromPreviewApi(payload)
  if (!tmpl) {
    throw new Error('Cannot build template from printDataList')
  }

  const templateData = labelTemplateDataForSnapshotReprint()
  tmpl = overlayReprintResolvedFields(tmpl, row, templateData)
  tmpl = bakeReprintTemplateSnapshot(tmpl)

  tmpl = {
    ...tmpl,
    elements: sortElementsForPreview(tmpl.elements || []),
  } as SystemLabelTemplate

  logReprintJson('bake + sort 后送打印机模板 tmpl', tmpl)

  await printReprintTemplateWithPreviewStrategy(tmpl, row, options)
}

/**
 * 从列表快照字符串（`printInputJson` / `renderTemplateJson`）解析出与接口 9 同构、可 `normalize` 的模板 JSON 字符串。
 *
 * 若根上同时有嵌套 `printInputJson`（小对象）和根级 `elements`（整模板），优先保留含 `elements` 的那份。
 */
export function extractPrintTemplateJsonForReprint (raw: string): string | null {
  const s = raw.trim()
  if (!s) return null
  try {
    let doc: unknown = JSON.parse(s)
    if (typeof doc === 'string') {
      doc = JSON.parse(doc)
    }
    if (doc == null || typeof doc !== 'object' || Array.isArray(doc)) return null
    const d = doc as Record<string, unknown>

    if (Array.isArray(d.elements) || Array.isArray(d.Elements)) {
      return JSON.stringify(d)
    }

    const pi = d.printInputJson ?? d.PrintInputJson
    if (pi != null && typeof pi === 'object' && !Array.isArray(pi)) {
      const p = pi as Record<string, unknown>
      if (Array.isArray(p.elements) || Array.isArray(p.Elements)) {
        return JSON.stringify(p)
      }
      return JSON.stringify(p)
    }
  } catch {
    return null
  }
  return null
}

/** 列表项里 JSON 快照字段：可能是 string（含转义）或已解析的 object */
function snapshotJsonFieldToString (
  row: PrintLogItemDto,
  camel: 'printInputJson' | 'renderTemplateJson',
  pascal: 'PrintInputJson' | 'RenderTemplateJson',
): string | null {
  const rec = row as unknown as Record<string, unknown>
  const r = rec[camel] ?? rec[pascal]
  if (r == null) return null
  if (typeof r === 'string') {
    const t = r.trim()
    return t || null
  }
  try {
    return JSON.stringify(r)
  } catch {
    return null
  }
}

/**
 * 打印日志重打入口：**优先 `printInputJson`**（与接口 9 落库快照一致），其次 `renderTemplateJson`，最后 `printDataList`。
 */
export async function printFromPrintLogRow (
  row: PrintLogItemDto,
  options: PrintFromPrintLogOptions = {}
): Promise<void> {
  const fromPrintInput = snapshotJsonFieldToString(row, 'printInputJson', 'PrintInputJson')
  const fromRender = snapshotJsonFieldToString(row, 'renderTemplateJson', 'RenderTemplateJson')

  console.log('[Reprint] ========== 重复打印 JSON 调试 ==========')
  console.log('[Reprint] taskId', row.taskId, 'labelCode', row.labelCode, 'productName', row.productName)
  logReprintJson('printInputJson（优先，接口 10）', fromPrintInput ?? '(无)')
  logReprintJson('renderTemplateJson（回退）', fromRender ?? '(无)')

  const tryExtract = (raw: string | null): string | null => {
    if (!raw) return null
    return extractPrintTemplateJsonForReprint(raw)
  }

  const extracted = tryExtract(fromPrintInput) ?? tryExtract(fromRender)

  if (extracted) {
    logReprintJson('extract 后用于打印的模板 JSON 字符串', extracted)
    await printFromMergedTemplateJsonString(extracted, row, options)
    return
  }

  if (fromPrintInput || fromRender) {
    console.warn('[Reprint] 有 printInputJson/renderTemplateJson 但 extract 失败，回退 printDataList')
  } else {
    console.log('[Reprint] 无 printInputJson 与 renderTemplateJson，使用 printDataList')
  }

  await printFromPrintDataListRow(row, options)
}

/**
 * 将已解析的快照 JSON 字符串走 normalize → overlay → bake 后送机（列表优先来自 `printInputJson`）。
 */
export async function printFromMergedTemplateJsonString (
  mergedTemplateJson: string,
  row: PrintLogItemDto,
  options: PrintFromPrintLogOptions = {}
): Promise<void> {
  console.log('[Reprint] 路径: renderTemplateJson / merged 完整模板')
  logReprintJson('mergedTemplateJson 原始字符串', mergedTemplateJson)

  let payload: unknown
  try {
    payload = JSON.parse(mergedTemplateJson) as unknown
    /** 部分网关/序列化会把整段再包一层 JSON 字符串 */
    if (typeof payload === 'string') {
      payload = JSON.parse(payload) as unknown
    }
  } catch {
    throw new Error('Invalid merged template JSON')
  }
  logReprintJson('JSON.parse 后的 payload', payload)

  let tmpl = normalizeLabelTemplateFromPreviewApi(payload)
  if (!tmpl) {
    throw new Error('Cannot parse merged template')
  }
  const templateData = labelTemplateDataForSnapshotReprint()
  tmpl = overlayReprintResolvedFields(tmpl, row, templateData)
  tmpl = bakeReprintTemplateSnapshot(tmpl)
  tmpl = {
    ...tmpl,
    elements: sortElementsForPreview(tmpl.elements || []),
  } as SystemLabelTemplate

  logReprintJson('bake + sort 后送打印机模板 tmpl', tmpl)
  logReprintJson('templateData（快照重打为空对象）', templateData)

  await printReprintTemplateWithPreviewStrategy(tmpl, row, options)
}