#!/usr/bin/env node

import { access } from "node:fs/promises"
import path from "node:path"
import { fileURLToPath } from "node:url"

const __filename = fileURLToPath(import.meta.url)
const __dirname = path.dirname(__filename)
const projectDir = path.resolve(__dirname, "..")

async function has(filePath) {
  try {
    await access(filePath)
    return true
  } catch {
    return false
  }
}

function nodeOk() {
  const major = Number.parseInt(process.versions.node.split(".")[0] ?? "0", 10)
  return Number.isFinite(major) && major >= 20
}

async function main() {
  const report = {
    node: process.versions.node,
    nodeOk: nodeOk(),
    packageJson: await has(path.join(projectDir, "package.json")),
    nodeModules: await has(path.join(projectDir, "node_modules")),
    distServer: await has(path.join(projectDir, "dist", "server.js")),
    configFile: await has(path.join(projectDir, "config", "browser-tool.config.json")),
    mcpTemplate: await has(path.join(projectDir, "opencode.mcp.example.json")),
  }

  process.stdout.write(`${JSON.stringify(report, null, 2)}\n`)

  const ok = Object.values(report).every((value) => value !== false)
  if (!ok) {
    process.exit(1)
  }
}

main().catch((error) => {
  process.stderr.write(`Verify failed: ${error instanceof Error ? error.message : String(error)}\n`)
  process.exit(1)
})