var test = require("tap").test
  , path = require("path")
  , rimraf = require("rimraf")
  , mkdirp = require("mkdirp")
  , spawn = require("child_process").spawn
  , npm = require.resolve("../../bin/npm-cli.js")
  , node = process.execPath
  , pkg = path.resolve(__dirname, "sorted-package-json")
  , tmp = path.join(pkg, "tmp")
  , cache = path.join(pkg, "cache")
  , fs = require("fs")
  , common = require("../common-tap.js")
  , mr = require("npm-registry-mock")
  , osenv = require("osenv")


test("sorting dependencies", function (t) {
  var packageJson = path.resolve(pkg, "package.json")

  cleanup()
  mkdirp.sync(cache)
  mkdirp.sync(tmp)
  setup()

  var before = JSON.parse(fs.readFileSync(packageJson).toString())

  mr({port : common.port}, function (er, s) {
    // underscore is already in the package.json,
    // but --save will trigger a rewrite with sort
    var child = spawn(node, [npm, "install", "--save", "underscore@1.3.3", "--no-progress", "--loglevel=error"], {
      cwd: pkg,
      env: {
        "npm_config_registry": common.registry,
        "npm_config_cache": cache,
        "npm_config_tmp": tmp,
        "npm_config_prefix": pkg,
        "npm_config_global": "false",
        HOME: process.env.HOME,
        Path: process.env.PATH,
        PATH: process.env.PATH
      },
      stdio: ['ignore', 'ignore', process.stderr]
    })

    child.on("close", function (code) {
      t.equal(code, 0, "npm install exited with code")
      var result = fs.readFileSync(packageJson).toString()
        , resultAsJson = JSON.parse(result)

      s.close()

      t.same(Object.keys(resultAsJson.dependencies),
        Object.keys(before.dependencies).sort())

      t.notSame(Object.keys(resultAsJson.dependencies),
        Object.keys(before.dependencies))

      t.ok(resultAsJson.dependencies.underscore)
      t.ok(resultAsJson.dependencies.request)
      t.end()
    })
  })
})

test("cleanup", function (t) {
  cleanup()
  t.pass("cleaned up")
  t.end()
})

function setup() {
  mkdirp.sync(pkg)

  fs.writeFileSync(path.resolve(pkg, "package.json"), JSON.stringify({
    "name": "sorted-package-json",
    "version": "0.0.0",
    "description": "",
    "main": "index.js",
    "scripts": {
      "test": "echo \"Error: no test specified\" && exit 1"
    },
    "author": "Rocko Artischocko",
    "license": "ISC",
    "dependencies": {
      "underscore": "^1.3.3",
      "request": "^0.9.0"
    }
  }, null, 2), "utf8")
}

function cleanup() {
  process.chdir(osenv.tmpdir())
  rimraf.sync(cache)
  rimraf.sync(pkg)
}
