/**
 * fun 解析与执行 + 执行入口：registry/executeAction 由 ctx 传入（来自 workflow-json-parser），本模块负责 parse/runAction/run/supports
 * 简易结点由 fun-node-registry.js 配置，只需新建脚本 + 在注册表加一条即可。
 */
const path = require('path')
const variableParser = require('../../variable-parser.js')
const FUN_NODE_REGISTRY = require('./fun-node-registry.js')

const LEGACY_FUN_TYPES = [
  'fun', 'ai',
  'read-txt', 'read-text', 'save-txt', 'save-text',
  'img-bounding-box-location', 'img-center-point-location', 'img-cropping',
  'ocr',
  'read-last-message', 'smart-chat-append',
  'extract-messages', 'ocr-chat', 'ocr-chat-history', 'extract-chat-history',
  'save-messages', 'generate-summary', 'generate-history-summary',
  'ai-generate', 'string-press',
]
const REGISTERED_TYPES = (FUN_NODE_REGISTRY && Array.isArray(FUN_NODE_REGISTRY)) ? FUN_NODE_REGISTRY.map((r) => r.type) : []
const FUN_REGISTRY_TYPES = LEGACY_FUN_TYPES.concat(REGISTERED_TYPES)
const types = FUN_REGISTRY_TYPES
const REGISTRY_BY_TYPE = new Map((FUN_NODE_REGISTRY || []).map((r) => [r.type, r]))
const scriptCache = new Map()

function getRegistryScript(funcDir, type) {
  const def = REGISTRY_BY_TYPE.get(type)
  if (!def) return null
  const key = `${funcDir}:${type}`
  if (!scriptCache.has(key)) {
    try {
      const scriptPath = path.join(funcDir, def.script || def.type + '.js')
      scriptCache.set(key, require(scriptPath))
    } catch (e) {
      scriptCache.set(key, null)
    }
  }
  return scriptCache.get(key)
}

function parse(action, parseContext) {
  const { extractVarName, resolveValue } = parseContext
  const variableContext = parseContext.variableContext || {}
  const parsed = {
    type: action.type,
    method: action.method,
    target: action.target,
    value: action.value,
    variable: action.variable,
    condition: action.condition,
    delay: action.delay || '',
    timeout: action.timeout,
    retry: action.retry,
  }
  Object.assign(parsed, action)

  const regDef = REGISTRY_BY_TYPE.get(action.type)
  if (regDef) {
    const funcDir = (parseContext.compilerConfig && parseContext.compilerConfig.funcDir) || __dirname
    if (regDef.customParse) {
      const script = getRegistryScript(funcDir, action.type)
      if (script && typeof script.parseNode === 'function') return script.parseNode(action, parseContext)
    }
    parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map((v) => extractVarName(v)) : []
    const inKeys = regDef.in || []
    const inAlt = regDef.inAlt || {}
    inKeys.forEach((key, i) => {
      const altKey = inAlt[key]
      parsed[key] = action.inVars?.[i] ?? action[key] ?? (altKey ? action[altKey] : undefined)
    })
    parsed.variable = action.outVars?.[0] ? extractVarName(action.outVars[0]) : undefined
    return parsed
  }

  switch (action.type) {
    case 'fun':
      parsed.method = action.method
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.outVars = action.outVars && Array.isArray(action.outVars) ? action.outVars.map(v => extractVarName(v)) : []
      break
    case 'extract-messages':
    case 'ocr-chat':
    case 'ocr-chat-history':
    case 'extract-chat-history':
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.avatar1 = action.inVars && action.inVars.length >= 2 ? action.inVars[0] : action.inVars?.[0]
      parsed.avatar2 = action.inVars && action.inVars.length >= 2 ? action.inVars[1] : action.avatar2
      parsed.outVars = action.outVars && Array.isArray(action.outVars) ? action.outVars.map(v => extractVarName(v)) : []
      if (parsed.outVars.length > 0) parsed.variable = extractVarName(action.outVars[0])
      else if (action.variable) parsed.variable = extractVarName(action.variable)
      if (action.friendAvatar && !parsed.avatar1) parsed.avatar1 = action.friendAvatar
      if (action.myAvatar && !parsed.avatar2) parsed.avatar2 = action.myAvatar
      break
    case 'save-messages':
      break
    case 'generate-summary':
    case 'generate-history-summary':
      parsed.summaryVariable = action.summaryVariable
      break
    case 'ai-generate':
      parsed.prompt = resolveValue(action.prompt, variableContext)
      parsed.model = action.model
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.outVars = action.outVars && Array.isArray(action.outVars) ? action.outVars.map(v => extractVarName(v)) : []
      if (parsed.outVars.length > 0) parsed.variable = extractVarName(action.outVars[0])
      else if (action.variable) parsed.variable = extractVarName(action.variable)
      break
    case 'read-last-message': {
      const inputVars = action.inVars || action.inputVars || []
      const outputVars = action.outVars || action.outputVars || []
      parsed.inVars = inputVars.map(v => extractVarName(v))
      parsed.outVars = outputVars.map(v => extractVarName(v))
      if (inputVars.length > 0) parsed.inputVar = extractVarName(inputVars[0])
      if (outputVars.length > 0) parsed.textVariable = extractVarName(outputVars[0])
      if (outputVars.length > 1) parsed.senderVariable = extractVarName(outputVars[1])
      if (!parsed.textVariable) parsed.textVariable = action.textVariable
      if (!parsed.senderVariable) parsed.senderVariable = action.senderVariable
      break
    }
    case 'read-txt':
    case 'read-text':
      parsed.inVars = action.inVars && action.inVars.length > 0 ? action.inVars.map(v => extractVarName(v)) : []
      parsed.filePath = action.inVars && action.inVars.length > 0 ? action.inVars[0] : action.filePath
      parsed.variable = action.outVars && action.outVars.length > 0 ? extractVarName(action.outVars[0]) : (action.variable ? extractVarName(action.variable) : undefined)
      break
    case 'save-txt':
    case 'save-text':
      if (action.inVars && Array.isArray(action.inVars)) {
        parsed.inVars = action.inVars.map(v => extractVarName(v))
        parsed.content = action.inVars[0]
        parsed.filePath = action.inVars.length > 1 ? action.inVars[1] : action.filePath
      } else {
        parsed.inVars = []
        parsed.filePath = action.filePath
        parsed.content = action.content
      }
      if (action.outVars && action.outVars.length > 0) parsed.variable = extractVarName(action.outVars[0])
      break
    case 'img-bounding-box-location':
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.screenshot = action.inVars?.[0]
      parsed.region = action.inVars?.[1] ?? action.region
      parsed.variable = action.outVars && action.outVars.length > 0 ? extractVarName(action.outVars[0]) : (action.variable ? extractVarName(action.variable) : undefined)
      break
    case 'img-center-point-location': {
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map((v, i) => (i === 1 && Array.isArray(v) ? v : extractVarName(v))) : []
      parsed.template = action.inVars?.[0] ?? action.template
      parsed.scaleRange = Array.isArray(action.inVars?.[1]) ? action.inVars[1] : undefined
      parsed.variable = action.outVars && action.outVars.length > 0 ? extractVarName(action.outVars[0]) : (action.variable ? extractVarName(action.variable) : undefined)
      break
    }
    case 'img-cropping':
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.area = action.inVars?.[0] ?? action.area
      parsed.savePath = action.inVars?.[1] ?? action.savePath
      if (action.outVars && action.outVars.length > 0) parsed.variable = extractVarName(action.outVars[0])
      break
    case 'ocr':
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.image = action.inVars && Array.isArray(action.inVars) && action.inVars.length > 0 ? action.inVars[0] : action.image
      parsed.variable = action.outVars && Array.isArray(action.outVars) && action.outVars.length > 0 ? extractVarName(action.outVars[0]) : (action.variable ? extractVarName(action.variable) : undefined)
      break
    default:
      parsed.inVars = action.inVars && Array.isArray(action.inVars) ? action.inVars.map(v => extractVarName(v)) : []
      parsed.outVars = action.outVars && Array.isArray(action.outVars) ? action.outVars.map(v => extractVarName(v)) : []
      break
  }
  return parsed
}

async function execute(action, ctx) {
  return { success: true }
}

async function runAction(action, device, folderPath, resolution, ctx) {
  const { variableContext, evaluateCondition, registry, executeAction } = ctx
  if (action.condition && !evaluateCondition(action.condition, variableContext)) {
    return { success: true, skipped: true }
  }

  const resolvedAction = variableParser.resolveActionInputs(action, variableContext)

  if (resolvedAction.type === 'fun' && resolvedAction.method) {
    return run(resolvedAction.method, resolvedAction, ctx, device, folderPath)
  }
  if (resolvedAction.type === 'ai' && resolvedAction.method) {
    return run(resolvedAction.method, resolvedAction, ctx, device, folderPath)
  }

  if (supports(resolvedAction.type)) {
    return run(resolvedAction.type, resolvedAction, ctx, device, folderPath)
  }

  if (registry && registry[resolvedAction.type]) {
    const execCtx = {
      device,
      folderPath,
      resolution,
      variableContext,
      compilerConfig: ctx.compilerConfig,
      api: ctx.electronAPI,
      extractVarName: ctx.extractVarName,
      resolveValue: ctx.resolveValue,
      replaceVariablesInString: ctx.replaceVariablesInString,
      evaluateCondition: ctx.evaluateCondition,
      evaluateExpression: ctx.evaluateExpression,
      getActionName: ctx.getActionName,
      logMessage: ctx.logMessage,
      logOutVars: ctx.logOutVars,
      parseDelayString: ctx.parseDelayString,
      calculateWaitTime: ctx.calculateWaitTime,
      DEFAULT_SCROLL_DISTANCE: ctx.DEFAULT_SCROLL_DISTANCE,
    }
    return await executeAction(resolvedAction.type, resolvedAction, execCtx)
  }

  return { success: false, error: `未知的操作类型: ${resolvedAction.type}` }
}

const cache = new Map()

function get(funcDir, category) {
  if (!funcDir) throw new Error('fun-parser: funcDir 未提供')
  const key = `${funcDir}:${category}`
  if (cache.has(key)) return cache.get(key)

  let mod
  switch (category) {
    case 'img':
      mod = {
        executeImgBoundingBoxLocation: require(path.join(funcDir, 'img-bounding-box-location.js')).executeImgBoundingBoxLocation,
        executeImgCenterPointLocation: require(path.join(funcDir, 'img-center-point-location.js')).executeImgCenterPointLocation,
        executeImgCropping: require(path.join(funcDir, 'img-cropping.js')).executeImgCropping,
        executeOcr: require(path.join(funcDir, 'ocr.js')).executeOcr,
        executeOcrFindText: require(path.join(funcDir, 'ocr.js')).executeOcrFindText,
      }
      break
    case 'io':
      mod = {
        executeReadLastMessage: require(path.join(funcDir, 'chat', 'read-last-message.js')).executeReadLastMessage,
        executeReadTxt: require(path.join(funcDir, 'read-txt.js')).executeReadTxt,
        executeSmartChatAppend: require(path.join(funcDir, 'chat', 'smart-chat-append.js')).executeSmartChatAppend,
        executeSaveTxt: require(path.join(funcDir, 'save-txt.js')).executeSaveTxt,
      }
      ;(FUN_NODE_REGISTRY || []).filter((r) => r.category === 'io').forEach((def) => {
        const scriptPath = path.join(funcDir, def.script || def.type + '.js')
        try {
          const m = require(scriptPath)
          if (m[def.execute]) mod[def.execute] = m[def.execute]
        } catch (e) { /* skip missing script */ }
      })
      break
    case 'chat':
      mod = (() => {
        const chatHistory = require(path.join(funcDir, 'chat', 'chat-history.js'))
        const ocrChat = require(path.join(funcDir, 'chat', 'ocr-chat.js'))
        return {
          executeOcrChat: ocrChat.executeOcrChat,
          generateHistorySummary: chatHistory.generateHistorySummary,
          getHistorySummary: chatHistory.getHistorySummary,
        }
      })()
      break
    default:
      throw new Error(`fun-parser: 未知分类 ${category}`)
  }
  cache.set(key, mod)
  return mod
}

const rgbPattern = /^\((\d+),(\d+),(\d+)\)$/

function parseRegion(regionArea) {
  if (!regionArea) return null
  if (typeof regionArea === 'string') {
    try {
      regionArea = JSON.parse(regionArea)
    } catch (e) {
      return null
    }
  }
  if (regionArea && typeof regionArea === 'object' && (!regionArea.topLeft || !regionArea.bottomRight)) return null
  return regionArea
}

async function run(actionType, action, ctx, device, folderPath) {
  const { variableContext, extractVarName, resolveValue, replaceVariablesInString, logOutVars, logMessage } = ctx
  const funcDir = ctx.compilerConfig && ctx.compilerConfig.funcDir
  if (!funcDir) return { success: false, error: 'compilerConfig.funcDir 未提供' }

  switch (actionType) {
    case 'img-bounding-box-location': {
      const { executeImgBoundingBoxLocation } = get(funcDir, 'img')
      let screenshotPath = action.screenshot
      let regionPath = action.region
      if (action.inVars && Array.isArray(action.inVars)) {
        if (action.inVars.length === 1) {
          const firstValue = action.inVars[0]
          regionPath = firstValue != null && typeof firstValue === 'string' && !String(firstValue).includes('{') ? firstValue : action.inVars[0]
          screenshotPath = null
        } else if (action.inVars.length >= 2) {
          const sv = action.inVars[0]
          screenshotPath = sv != null && typeof sv === 'string' && !sv.includes('{') ? sv : action.inVars[0]
          const rv = action.inVars[1]
          regionPath = rv != null && typeof rv === 'string' && !rv.includes('{') ? rv : action.inVars[1]
        }
      }
      if (screenshotPath !== null && !screenshotPath) screenshotPath = action.screenshot
      if (!regionPath) regionPath = action.region
      if (!regionPath) return { success: false, error: '缺少区域截图路径' }
      if (screenshotPath === null && !device) return { success: false, error: '缺少完整截图路径，且无法自动获取设备截图（缺少设备ID）' }
      const result = await executeImgBoundingBoxLocation({ device, screenshot: screenshotPath, region: regionPath, folderPath })
      if (!result.success) return { success: false, error: `图像区域定位失败: ${result.error}` }
      const outputVarName = action.outVars?.[0] != null ? extractVarName(String(action.outVars[0]).trim()) : (action.variable ? extractVarName(action.variable) : null)
      if (outputVarName) {
        variableContext[outputVarName] = result.corners && typeof result.corners === 'object' ? JSON.stringify(result.corners) : ''
        await logOutVars(action, variableContext, folderPath)
      }
      return { success: true, result: result.corners }
    }

    case 'img-center-point-location': {
      const { executeImgCenterPointLocation } = get(funcDir, 'img')
      let templatePath = action.template
      if (action.inVars?.length > 0) {
        const templateValue = action.inVars[0]
        templatePath = templateValue != null && typeof templateValue === 'string' && !String(templateValue).includes('{') ? templateValue : action.inVars[0]
      }
      if (!templatePath) templatePath = action.template
      if (!templatePath) return { success: false, error: '缺少模板图片路径' }
      let scaleRange = action.inVars?.[1] ?? action.scaleRange
      if (!Array.isArray(scaleRange) || scaleRange.length < 2) return { success: false, error: 'img-center-point-location 必须填写 inVars[1] 缩放比范围 [min, max]，如 [0.2, 1.6]' }
      const minS = Number(scaleRange[0])
      const maxS = Number(scaleRange[1])
      if (Number.isNaN(minS) || Number.isNaN(maxS) || minS >= maxS) return { success: false, error: 'img-center-point-location inVars[1] 缩放比范围无效，需为两个数字且 min < max' }
      if (!device) return { success: false, error: '缺少设备 ID，无法自动获取截图' }
      const result = await executeImgCenterPointLocation({ device, template: templatePath, folderPath, scaleRange: [minS, maxS] })
      if (!result.success) return { success: false, error: `图像中心点定位失败: ${result.error}` }
      const outputVarName = action.outVars?.[0] != null ? extractVarName(String(action.outVars[0]).trim()) : (action.variable ? extractVarName(action.variable) : null)
      if (outputVarName) {
        if (result.center && typeof result.center === 'object' && result.center.x !== undefined && result.center.y !== undefined) {
          variableContext[outputVarName] = { x: Math.round(Number(result.center.x)), y: Math.round(Number(result.center.y)) }
        } else {
          variableContext[outputVarName] = null
        }
        await logOutVars(action, variableContext, folderPath)
      }
      return { success: true, result: result.center }
    }

    case 'img-cropping': {
      const { executeImgCropping } = get(funcDir, 'img')
      let area = action.area
      let savePath = action.savePath
      if (action.inVars && Array.isArray(action.inVars)) {
        if (action.inVars.length > 0) area = action.inVars[0]
        if (action.inVars.length > 1) savePath = action.inVars[1]
      }
      if (!area) return { success: false, error: 'img-cropping 缺少 area 参数' }
      if (!savePath) return { success: false, error: 'img-cropping 缺少 savePath 参数' }
      const result = await executeImgCropping({ area, savePath, folderPath, device })
      if (!result.success) return { success: false, error: result.error }
      if (action.outVars?.[0] != null) {
        const outputVarName = extractVarName(String(action.outVars[0]).trim())
        if (outputVarName) variableContext[outputVarName] = result.success ? '1' : '0'
      }
      await logOutVars(action, variableContext, folderPath)
      return { success: true }
    }

    case 'ocr': {
      const { executeOcr, executeOcrFindText } = get(funcDir, 'img')
      let imageOrText = action.inVars && Array.isArray(action.inVars) && action.inVars.length > 0 ? action.inVars[0] : action.image
      if (imageOrText == null || String(imageOrText).trim() === '') return { success: false, error: 'ocr 缺少参数：图片路径或要查找的文字（inVars[0] / image）' }
      const baseDir = folderPath && typeof folderPath === 'string' ? folderPath : (ctx.compilerConfig && ctx.compilerConfig.projectRoot) || process.cwd()
      const fs = require('fs')
      const isAbsoluteOrDrive = String(imageOrText).startsWith('/') || String(imageOrText).includes(':')
      const hasSubPath = String(imageOrText).includes('/') || String(imageOrText).includes(path.sep)
      const resolvedPath = isAbsoluteOrDrive ? imageOrText : (hasSubPath ? path.join(baseDir, imageOrText) : path.join(baseDir, 'resources', imageOrText))
      const isImagePath = fs.existsSync(resolvedPath) && fs.statSync(resolvedPath).isFile()
      const outputVarName = action.outVars && Array.isArray(action.outVars) && action.outVars.length > 0 ? extractVarName(String(action.outVars[0]).trim()) : (action.variable ? extractVarName(action.variable) : null)
      if (isImagePath) {
        const result = await executeOcr({ imagePath: imageOrText, folderPath })
        if (!result.success) return { success: false, error: result.error }
        if (outputVarName) {
          variableContext[outputVarName] = result.text != null ? String(result.text) : ''
          await logOutVars(action, variableContext, folderPath)
        }
        return { success: true, result: result.text }
      }
      if (!device) return { success: false, error: 'ocr 按文字查找需设备截图，当前无设备' }
      const findResult = await executeOcrFindText({ device, findText: String(imageOrText).trim(), folderPath })
      if (!findResult.success) return { success: false, error: findResult.error }
      if (outputVarName) {
        variableContext[outputVarName] = findResult.center && typeof findResult.center === 'object'
          ? JSON.stringify({ x: findResult.center.x, y: findResult.center.y }) : ''
        await logOutVars(action, variableContext, folderPath)
      }
      return { success: true, result: findResult.center }
    }

    case 'read-last-message': {
      const { executeReadLastMessage } = get(funcDir, 'io')
      const inputVars = action.inVars || action.inputVars || []
      const outputVars = action.outVars || action.outputVars || []
      let textVar = outputVars.length > 0 ? extractVarName(String(outputVars[0]).trim()) : (action.textVariable ? extractVarName(action.textVariable) : null)
      let senderVar = outputVars.length > 1 ? extractVarName(String(outputVars[1]).trim()) : (action.senderVariable ? extractVarName(action.senderVariable) : null)
      let inputDataString = inputVars.length > 0 ? (inputVars[0] != null ? (typeof inputVars[0] === 'string' ? inputVars[0] : (Array.isArray(inputVars[0]) || typeof inputVars[0] === 'object' ? JSON.stringify(inputVars[0]) : String(inputVars[0]))) : null) : null
      if (!textVar && !senderVar) return { success: false, error: 'read-last-message 缺少 textVariable 或 senderVariable 参数' }
      const result = await executeReadLastMessage({ folderPath, inputData: inputDataString, textVariable: textVar, senderVariable: senderVar })
      if (!result.success) return { success: false, error: result.error }
      if (textVar) variableContext[textVar] = result.text
      if (senderVar) variableContext[senderVar] = result.sender
      await logOutVars(action, variableContext, folderPath)
      return { success: true, text: result.text, sender: result.sender }
    }

    case 'read-txt':
    case 'read-text': {
      const { executeReadTxt } = get(funcDir, 'io')
      let filePath = action.filePath
      let varName = action.variable
      if (action.inVars?.length > 0) filePath = action.inVars[0]
      if (action.outVars?.length > 0) varName = extractVarName(String(action.outVars[0]).trim())
      else if (action.variable) varName = extractVarName(action.variable)
      if (!filePath) return { success: false, error: 'read-txt 缺少 filePath 参数' }
      if (!varName) return { success: false, error: 'read-txt 缺少 variable 参数' }
      const result = await executeReadTxt({ filePath, folderPath })
      if (!result.success) return { success: false, error: result.error }
      const content = result.content || ''
      variableContext[varName] = typeof content === 'string' ? content : String(content)
      if (variableContext[varName] === undefined || variableContext[varName] === null) variableContext[varName] = ''
      await logOutVars(action, variableContext, folderPath)
      return { success: true, content: result.content }
    }

    case 'smart-chat-append': {
      const { executeSmartChatAppend } = get(funcDir, 'io')
      let history = action.history
      let current = action.current
      if (action.inVars && Array.isArray(action.inVars)) {
        if (action.inVars.length > 0) history = action.inVars[0]
        if (action.inVars.length > 1) current = action.inVars[1]
      }
      if (history === undefined || history === null) history = ''
      if (current === undefined || current === null) current = ''
      const result = await executeSmartChatAppend({
        history: typeof history === 'string' ? history : String(history),
        current: typeof current === 'string' ? current : String(current),
      })
      if (!result.success) return { success: false, error: result.error }
      const outputVarName = action.outVars?.[0] != null ? extractVarName(String(action.outVars[0]).trim()) : (action.variable ? extractVarName(action.variable) : null)
      if (outputVarName && result.result) variableContext[outputVarName] = result.result
      return { success: true, result: result.result }
    }

    case 'save-txt':
    case 'save-text': {
      const { executeSaveTxt } = get(funcDir, 'io')
      let filePath = action.filePath
      let content = action.content
      if (action.inVars && Array.isArray(action.inVars)) {
        if (action.inVars.length > 0) content = action.inVars[0]
        if (action.inVars.length > 1) filePath = action.inVars[1]
      }
      if (!filePath) return { success: false, error: 'save-txt 缺少 filePath 参数' }
      if (content === undefined || content === null) return { success: false, error: 'save-txt 缺少 content 参数' }
      const result = await executeSaveTxt({ filePath, content, folderPath })
      if (!result.success) return { success: false, error: result.error }
      if (action.outVars?.[0] != null) {
        const outputVarName = extractVarName(String(action.outVars[0]).trim())
        if (outputVarName) variableContext[outputVarName] = result.success ? '1' : '0'
      }
      await logOutVars(action, variableContext, folderPath)
      return { success: true }
    }

    case 'extract-messages':
    case 'ocr-chat':
    case 'ocr-chat-history':
    case 'extract-chat-history': {
      const { executeOcrChat } = get(funcDir, 'chat')
      const folderName = folderPath.split(/[/\\]/).pop()
      let avatar1Path = null
      let avatar2Path = null
      let avatar1Name, avatar2Name, regionArea = null
      let friendRgb = null, myRgb = null

      if (action.inVars && Array.isArray(action.inVars)) {
        if (action.inVars.length >= 3) {
          const param1 = action.inVars[0]
          const param2 = action.inVars[1]
          if (typeof param1 === 'string' && rgbPattern.test(param1.trim()) && typeof param2 === 'string' && rgbPattern.test(param2.trim())) {
            friendRgb = param1.trim()
            myRgb = param2.trim()
            regionArea = action.inVars[2]
          } else {
            avatar1Name = action.inVars[0]
            avatar2Name = action.inVars[1]
            regionArea = action.inVars[2]
          }
          regionArea = parseRegion(regionArea)
        } else if (action.inVars.length >= 2) {
          const param1 = action.inVars[0]
          const param2 = action.inVars[1]
          if (typeof param1 === 'string' && rgbPattern.test(param1.trim()) && typeof param2 === 'string' && rgbPattern.test(param2.trim())) {
            friendRgb = param1.trim()
            myRgb = param2.trim()
          } else {
            avatar1Name = param1
            avatar2Name = param2
          }
        } else if (action.inVars.length === 1) {
          avatar1Name = action.inVars[0]
          avatar2Name = action.avatar2 || action.myAvatar
        }
      } else {
        avatar1Name = action.avatar1 || action.friendAvatar
        avatar2Name = action.avatar2 || action.myAvatar
      }

      if (avatar1Name) {
        const resolved = resolveValue(avatar1Name, variableContext)
        if (resolved) avatar1Path = `${folderName}/resources/${resolved}`
      }
      if (avatar2Name) {
        const resolved = resolveValue(avatar2Name, variableContext)
        if (resolved) avatar2Path = `${folderName}/resources/${resolved}`
      }

      const regionParam = regionArea && typeof regionArea === 'string' ? (() => { try { return JSON.parse(regionArea) } catch (e) { return null } })() : regionArea
      const chatResult = await executeOcrChat({ device, avatar1: avatar1Path, avatar2: avatar2Path, folderPath, region: regionParam, friendRgb, myRgb })
      if (!chatResult.success) return { success: false, error: `提取消息记录失败: ${chatResult.error}` }

      const outputVarName = action.outVars?.[0] != null ? extractVarName(String(action.outVars[0]).trim()) : (action.variable ? extractVarName(action.variable) : null)
      if (outputVarName) {
        variableContext[outputVarName] = chatResult.messagesJson || JSON.stringify(chatResult.messages || [])
        await logOutVars(action, variableContext, folderPath)
      }
      return {
        success: true,
        messages: chatResult.messages || [],
        messagesJson: chatResult.messagesJson || JSON.stringify(chatResult.messages || []),
        lastMessage: chatResult.messages?.length > 0 ? chatResult.messages[chatResult.messages.length - 1] : null,
      }
    }

    case 'save-messages':
    case 'generate-summary':
    case 'generate-history-summary': {
      const { generateHistorySummary } = get(funcDir, 'chat')
      if (!action.variable) return { success: false, error: '缺少变量名' }
      const messages = variableContext[action.variable]
      if (!messages) return { success: false, error: `变量 ${action.variable} 不存在或为空` }
      const modelName = action.model || 'gpt-5-nano-ca'
      const result = await generateHistorySummary(messages, folderPath, modelName)
      if (!result.success) return { success: false, error: `生成消息记录总结失败: ${result.error}` }
      if (action.summaryVariable) variableContext[action.summaryVariable] = result.summary
      return { success: true, summary: result.summary }
    }

    case 'ai-generate': {
      const { getHistorySummary } = get(funcDir, 'chat')
      let prompt = resolveValue(action.prompt, variableContext)
      if (prompt && prompt.includes('{historySummary}') && getHistorySummary) {
        let historySummary = variableContext['historySummary'] || ''
        if (!historySummary) {
          historySummary = await getHistorySummary(folderPath)
          if (historySummary) variableContext['historySummary'] = historySummary
        }
        prompt = prompt.replace(/{historySummary}/g, historySummary)
      }
      prompt = replaceVariablesInString(prompt, variableContext)

      try {
        const response = await fetch('https://ai-anim.com/api/text2textByModel', {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ prompt, modelName: action.model || 'gpt-5-nano-ca' }),
        })
        if (!response.ok) return { success: false, error: `AI请求失败: ${response.statusText}` }
        const data = await response.json()
        let rawResult = ''
        if (data.data?.output_text) rawResult = data.data.output_text
        else if (data.output_text) rawResult = data.output_text
        else if (data.text) rawResult = data.text
        else if (data.content) rawResult = data.content
        else if (typeof data.data === 'string') rawResult = data.data
        else rawResult = JSON.stringify(data)
        rawResult = rawResult ? String(rawResult) : ''

        let result = rawResult
        try {
          try {
            const jsonResult = JSON.parse(rawResult.trim())
            if (jsonResult.reply) result = jsonResult.reply
          } catch (e) {
            const codeBlockMatch = rawResult.match(/```(?:json)?\s*(\{[\s\S]*?\})\s*```/)
            if (codeBlockMatch) {
              try {
                const jsonResult = JSON.parse(codeBlockMatch[1])
                if (jsonResult.reply) result = jsonResult.reply
              } catch (e2) {}
            } else {
              const jsonMatch = rawResult.match(/\{\s*"reply"\s*:\s*"([^"]+)"\s*\}/)
              if (jsonMatch) result = jsonMatch[1]
              else {
                const lines = rawResult.split('\n').map((l) => l.trim()).filter(Boolean)
                for (const line of lines) {
                  if (line.startsWith('{') && line.includes('"reply"')) {
                    try {
                      const jsonResult = JSON.parse(line)
                      if (jsonResult.reply) { result = jsonResult.reply; break }
                    } catch (e3) {}
                  }
                }
              }
            }
          }
        } catch (parseError) {}

        if (action.outVars?.length > 0) {
          if (action.outVars.length > 0) {
            const outputVarName = action.outVars?.[0] != null ? extractVarName(String(action.outVars[0]).trim()) : null
            if (outputVarName) variableContext[outputVarName] = result
          }
          if (action.outVars.length > 1) {
            const callbackVarName = action.outVars?.[1] != null ? extractVarName(String(action.outVars[1]).trim()) : null
            if (callbackVarName) variableContext[callbackVarName] = 1
          }
          await logOutVars(action, variableContext, folderPath)
        } else if (action.variable) {
          const outputVarName = extractVarName(action.variable)
          if (outputVarName) variableContext[outputVarName] = result
        }
        if (!action.outVars || action.outVars.length <= 1) {
          if (action.inVars?.length > 1 && action.inVars[1] != null) {
            const callbackVarName = extractVarName(String(action.inVars[1]).trim())
            if (callbackVarName) variableContext[callbackVarName] = 1
          }
        }
        return { success: true, result }
      } catch (error) {
        return { success: false, error: `AI生成失败: ${error.message}` }
      }
    }

    case 'string-press': {
      const api = ctx.electronAPI
      const inVars = action.inVars || []
      const targetText = inVars.length > 0 ? (inVars[0] ?? action.value) : (action.value ?? '')
      if (!targetText) return { success: false, error: 'string-press 操作缺少文字内容' }
      if (!api?.findTextAndGetCoordinate) return { success: false, error: '文字识别 API 不可用' }
      const matchResult = await api.findTextAndGetCoordinate(device, targetText)
      if (!matchResult.success) return { success: false, error: `文字识别失败: ${matchResult.error}` }
      const { x, y } = matchResult.clickPosition
      if (!api?.sendTap) return { success: false, error: '点击 API 不可用' }
      const tapResult = await api.sendTap(device, x, y)
      if (!tapResult.success) return { success: false, error: `点击失败: ${tapResult.error}` }
      return { success: true }
    }

    default: {
      const regDef = REGISTRY_BY_TYPE.get(actionType)
      if (regDef) {
        if (regDef.customRun) {
          const script = getRegistryScript(funcDir, actionType)
          if (script && typeof script.runNode === 'function') {
            const runCtx = { ...ctx, get, funcDir, folderPath, device }
            const result = await script.runNode(action, runCtx)
            if (result && result.success !== false) await logOutVars(action, variableContext, folderPath)
            return result != null ? result : { success: true }
          }
        }
        const inKeys = regDef.in || []
        const inAlt = regDef.inAlt || {}
        const input = {}
        inKeys.forEach((key, i) => {
          let val = action[key]
          if (action.inVars && action.inVars[i] !== undefined) val = action.inVars[i]
          if (val === undefined && inAlt[key]) val = action[inAlt[key]]
          input[key] = val != null ? String(val).trim() : val
        })
        input.folderPath = folderPath
        const mod = get(funcDir, regDef.category)
        const fn = mod[regDef.execute]
        if (!fn) {
          return { success: false, error: `fun-parser: ${regDef.execute} not found` }
        }
        let result
        try {
          result = await fn(input)
        } catch (e) {
          return { success: false, error: (e && (e.message || String(e))) || 'execute threw' }
        }
        if (!result || !result.success) {
          return { success: false, error: (result && result.error) || 'execute failed' }
        }
        const outputVarName = action.outVars?.[0] != null ? extractVarName(String(action.outVars[0]).trim()) : null
        if (outputVarName && result != null) {
          const outVal = result.path ?? result.value ?? result.result
          if (outVal !== undefined && outVal !== null) variableContext[outputVarName] = typeof outVal === 'string' ? outVal : String(outVal)
        }
        await logOutVars(action, variableContext, folderPath)
        return { success: true, ...result }
      }
      return { success: false, error: `fun-parser 不支持的 type: ${actionType}` }
    }
  }
}

const FUN_TYPES = new Set([
  'ai',
  'img-bounding-box-location', 'img-center-point-location', 'img-cropping', 'ocr',
  'read-last-message', 'read-txt', 'read-text', 'smart-chat-append', 'save-txt', 'save-text',
  'extract-messages', 'ocr-chat', 'ocr-chat-history', 'extract-chat-history',
  'save-messages', 'generate-summary', 'generate-history-summary',
  'ai-generate',
  'string-press',
].concat(REGISTERED_TYPES))

function supports(type) {
  return FUN_TYPES.has(type)
}

module.exports = { types, parse, execute, runAction, get, run, supports }