/**
 * iOS dSYM 符号化解析器
 *
 * 使用 atos 命令进行符号化：
 * atos -o MyApp.app.dSYM/Contents/Resources/DWARF/MyApp -arch arm64 -l 0x102345000 0x102345678
 */

import { execSync } from 'child_process'
import { StackFrame } from './stack-parser'

export interface DsymConfig {
  /** dSYM 文件路径 */
  dsymPath: string
  /** 应用加载地址 */
  loadAddress: string
  /** 架构 (arm64, x86_64) */
  arch?: string
}

/**
 * 使用 atos 命令符号化 iOS 堆栈
 */
export function symbolicateWithDsym(
  frames: StackFrame[],
  config: DsymConfig
): string[] {
  const { dsymPath, loadAddress, arch = 'arm64' } = config

  // 提取需要符号化的地址
  const addresses = frames
    .filter(f => f.file === '<binary>')
    .map(f => `0x${f.column.toString(16)}`)

  if (addresses.length === 0) {
    return frames.map(f => `${f.function} (${f.file}:${f.line})`)
  }

  try {
    // 调用 atos 命令
    const cmd = `atos -o "${dsymPath}" -arch ${arch} -l ${loadAddress} ${addresses.join(' ')}`
    const output = execSync(cmd, { encoding: 'utf-8', timeout: 30000 })

    const symbolicated = output.trim().split('\n')
    let addrIndex = 0

    return frames.map(f => {
      if (f.file === '<binary>' && addrIndex < symbolicated.length) {
        return symbolicated[addrIndex++]
      }
      return `${f.function} (${f.file}:${f.line})`
    })
  } catch (err) {
    console.error('atos symbolication failed:', err)
    return frames.map(f => `${f.function} (${f.file}:${f.line})`)
  }
}

/**
 * 解析 iOS 崩溃日志中的线程帧
 *
 * 格式示例：
 *   0   MyApp                               0x0000000102345678 myFunction + 123
 *   1   MyApp                               0x0000000102345678 myFunction + 123
 */
export function parseIOSCrashFrames(crashLog: string): StackFrame[] {
  const frames: StackFrame[] = []
  const lines = crashLog.split('\n')

  for (const line of lines) {
    const match = line.trim().match(
      /(\d+)\s+(\S+)\s+(0x[\da-f]+)\s+(\S+)\s+\+\s+(\d+)/
    )

    if (match) {
      frames.push({
        function: match[4],
        file: match[2],
        line: 0,
        column: parseInt(match[5], 10),
      })
    }
  }

  return frames
}