// EasyFlow 编译器 - 工作流任务解析和执行器（主机，单文件 ≤500 行）
// ========== 入口说明：外部通过 require 本模块后，使用下方 module.exports 导出的 5 个方法作为调用入口 ==========

const path = require('path')
const fs = require('fs')

// --- 配置：projectRoot = config 文件所在目录的上级（config 在 <根>/configs/config.js）---
const defaultRoot = path.resolve(__dirname, '..', '..')
const configPath = process.env.STATIC_ROOT
  ? path.join(path.dirname(process.env.STATIC_ROOT), 'configs', 'config.js')
  : path.join(defaultRoot, 'configs', 'config.js')
let projectRoot = path.dirname(path.dirname(path.resolve(configPath)))
let adbInteractPath = path.join(projectRoot, 'nodejs', 'adb', 'adb-interact.js')
let nodeExePath = 'node'
if (fs.existsSync(configPath)) {
  try {
    const cfg = require(configPath)
    nodeExePath = cfg.nodejsPath
      ? (path.isAbsolute(cfg.nodejsPath) ? cfg.nodejsPath : path.join(projectRoot, cfg.nodejsPath))
      : (process.env.STATIC_ROOT ? path.join(projectRoot, 'node', process.platform === 'win32' ? 'node.exe' : 'node') : 'node')
    adbInteractPath = path.join(projectRoot, 'nodejs', 'adb', 'adb-interact.js')
    if (process.env.STATIC_ROOT) {
      const unpacked = path.join(projectRoot, 'resources', 'app.asar.unpacked', 'nodejs', 'adb', 'adb-interact.js')
      if (fs.existsSync(unpacked)) adbInteractPath = unpacked
    }
  } catch (e) {}
}
const funcDir = path.join(__dirname, 'fun')
const DEFAULT_STEP_INTERVAL = 1000
const DEFAULT_SCROLL_DISTANCE = 100
const compilerConfig = { projectRoot, funcDir, adbInteractPath, nodeExePath, DEFAULT_STEP_INTERVAL, DEFAULT_SCROLL_DISTANCE }

// --- 依赖 ---
const setParser = require('./components/actions/set-parser.js')
const expressionEvaluator = require('./components/expression-evaluator.js')
const runtimeApi = require('./components/runtime-api.js')
const workflowJsonParser = require('./components/workflow-json-parser.js')
const sequenceRunner = require('./components/sequence-runner.js')
const actions = require('./components/actions/fun-parser.js')

// --- 功能模块（fun 目录）与运行时 API ---
const { matchImageAndGetCoordinate } = require('./fun/img-center-point-location.js')
const { readTextFile } = require('./fun/read-txt.js')
const { writeTextFile } = require('./fun/save-txt.js')

const electronAPI = runtimeApi.createElectronAPI({ matchImageAndGetCoordinate, readTextFile, writeTextFile }, compilerConfig)

// --- 共享状态（变量上下文、步骤计数、当前工作流目录等）---
const state = {
  variableContext: {},
  variableContextInitialized: false,
  globalStepCounter: 0,
  currentWorkflowFolderPath: null,
}

// --- 从各组件抽出的工具方法（供本文件与 ctx 使用）---
const extractVarName = setParser.extractVarName
const replaceVariablesInString = setParser.replaceVariablesInString
const resolveValue = setParser.resolveValue
const parseDelayString = setParser.parseDelayString
const calculateWaitTime = setParser.calculateWaitTime
const evaluateCondition = expressionEvaluator.evaluateCondition
const evaluateExpression = expressionEvaluator.evaluateExpression
const getActionName = workflowJsonParser.getActionName

// --- 日志与变量输出 ---
async function logMessage(message, folderPath = null) {
  try {
    const targetFolderPath = folderPath || state.currentWorkflowFolderPath
    if (targetFolderPath && electronAPI.appendLog) await electronAPI.appendLog(targetFolderPath, message)
  } catch (err) {}
}

async function logOutVars(action, variableContext, folderPath = null) {
  if (!action.outVars || !Array.isArray(action.outVars) || action.outVars.length === 0) return
  const outVarsInfo = action.outVars.map((varName) => {
    const varNameClean = extractVarName(varName)
    const value = variableContext[varNameClean]
    let displayValue = value
    if (typeof value === 'string' && value.length > 100) displayValue = value.substring(0, 100) + '...'
    return `${varNameClean}: ${JSON.stringify(displayValue)}`
  })
}

// --- 对外入口 1：解析整份工作流 ---
function parseWorkflow(workflow) {
  const loaderState = {
    variableContext: state.variableContext,
    getInitialized: () => state.variableContextInitialized,
    setInitialized: (v) => { state.variableContextInitialized = v },
  }
  return workflowJsonParser.parseWorkflow(workflow, loaderState)
}

// --- 对外入口 2：仅解析动作列表 ---
function parseActions(actions) {
  const loaderState = {
    variableContext: state.variableContext,
    getInitialized: () => state.variableContextInitialized,
    setInitialized: () => {},
  }
  return workflowJsonParser.parseActions(actions, loaderState)
}

// --- 对外入口 3：执行单条动作 ---
async function executeAction(action, device, folderPath, resolution) {
  const ctx = {
    variableContext: state.variableContext,
    compilerConfig,
    electronAPI,
    extractVarName,
    replaceVariablesInString,
    resolveValue,
    evaluateCondition,
    evaluateExpression,
    getActionName,
    logMessage,
    logOutVars,
    parseDelayString,
    calculateWaitTime,
    DEFAULT_SCROLL_DISTANCE,
    registry: workflowJsonParser.registry,
    executeAction: workflowJsonParser.executeAction,
  }
  try {
    return await actions.runAction(action, device, folderPath, resolution, ctx)
        } catch (error) {
    const now = new Date()
    const timeStr = `${now.getFullYear()}/${String(now.getMonth() + 1).padStart(2, '0')}/${String(now.getDate()).padStart(2, '0')} ${String(now.getHours()).padStart(2, '0')}:${String(now.getMinutes()).padStart(2, '0')}:${String(now.getSeconds()).padStart(2, '0')}`
    const errDetail = error && (error.message || error.stack || String(error)) || 'unknown'
    const errorMsg = `[ef-compiler] [ERROR] Action failed: ${errDetail} [time: ${timeStr}]`
    await logMessage(errorMsg, folderPath).catch(() => {})
    return { success: false, error: errDetail }
  }
}

// --- 对外入口 4：按顺序执行动作序列（含 schedule/if/for/while 等）---
async function executeActionSequence(actions, device, folderPath, resolution, stepInterval = DEFAULT_STEP_INTERVAL, onStepComplete = null, shouldStop = null, depth = 0) {
  const ctx = {
    executeAction,
    logMessage,
    evaluateCondition,
    getActionName,
    parseDelayString,
    calculateWaitTime,
    replaceVariablesInString,
    state,
    DEFAULT_STEP_INTERVAL,
  }
  return sequenceRunner.executeActionSequence(actions, device, folderPath, resolution, stepInterval, onStepComplete, shouldStop, depth, ctx)
}

// --- 编译/执行入口：对外暴露的 API ---
module.exports = {
  parseWorkflow,
  parseActions,
  executeAction,
  executeActionSequence,
}