var common = require('../common-tap.js')
var test = require('tap').test
var npm = require('../../')
var osenv = require('osenv')
var path = require('path')
var fs = require('fs')
var rimraf = require('rimraf')
var mkdirp = require('mkdirp')
var pkg = path.join(__dirname, 'install-save-prefix')
var mr = require("npm-registry-mock")

test("setup", function (t) {
  mkdirp.sync(pkg)
  mkdirp.sync(path.resolve(pkg, 'node_modules'))
  process.chdir(pkg)
  t.end()
})

test('"npm install --save with default save-prefix should install local pkg versioned to allow minor updates', function(t) {
  resetPackageJSON(pkg)
  mr(common.port, function (s) {
    npm.load({
      cache: pkg + "/cache",
      loglevel: 'silent',
      'save-prefix': '^',
      registry: common.registry }, function(err) {
        t.ifError(err)
        npm.config.set('save', true)
        npm.commands.install(['underscore@latest'], function(err) {
          t.ifError(err)
          var p = path.resolve(pkg, 'node_modules/underscore/package.json')
          t.ok(JSON.parse(fs.readFileSync(p)))
          var pkgJson = JSON.parse(fs.readFileSync(pkg + '/package.json', 'utf8'))
          t.deepEqual(pkgJson.dependencies, {
            'underscore': '^1.5.1'
          }, 'Underscore dependency should specify ^1.5.1')
          npm.config.set('save', undefined)
          s.close()
          t.end()
        })
      })
  })
})

test('"npm install --save-dev with default save-prefix should install local pkg to dev dependencies versioned to allow minor updates', function(t) {
  resetPackageJSON(pkg)
  mr(common.port, function (s) {
    npm.load({
      cache: pkg + "/cache",
      loglevel: 'silent',
      'save-prefix': '^',
      registry: common.registry }, function(err) {
        t.ifError(err)
        npm.config.set('save-dev', true)
        npm.commands.install(['underscore@1.3.1'], function(err) {
          t.ifError(err)
          var p = path.resolve(pkg, 'node_modules/underscore/package.json')
          t.ok(JSON.parse(fs.readFileSync(p)))
          var pkgJson = JSON.parse(fs.readFileSync(pkg + '/package.json', 'utf8'))
          t.deepEqual(pkgJson.devDependencies, {
            'underscore': '^1.3.1'
          }, 'Underscore devDependency should specify ^1.3.1')
          npm.config.set('save-dev', undefined)
          s.close()
          t.end()
        })
      })
  })
})

test('"npm install --save with "~" save-prefix should install local pkg versioned to allow patch updates', function(t) {
  resetPackageJSON(pkg)
  mr(common.port, function (s) {
    npm.load({
      cache: pkg + "/cache",
      loglevel: 'silent',
      registry: common.registry }, function(err) {
        t.ifError(err)
        npm.config.set('save', true)
        npm.config.set('save-prefix', '~')
        npm.commands.install(['underscore@1.3.1'], function(err) {
          t.ifError(err)
          var p = path.resolve(pkg, 'node_modules/underscore/package.json')
          t.ok(JSON.parse(fs.readFileSync(p)))
          var pkgJson = JSON.parse(fs.readFileSync(pkg + '/package.json', 'utf8'))
          t.deepEqual(pkgJson.dependencies, {
            'underscore': '~1.3.1'
          }, 'Underscore dependency should specify ~1.3.1')
          npm.config.set('save', undefined)
          npm.config.set('save-prefix', undefined)
          s.close()
          t.end()
        })
      })
  })
})

test('"npm install --save-dev with "~" save-prefix should install local pkg to dev dependencies versioned to allow patch updates', function(t) {
  resetPackageJSON(pkg)
  mr(common.port, function (s) {
    npm.load({
      cache: pkg + "/cache",
      loglevel: 'silent',
      registry: common.registry }, function(err) {
        t.ifError(err)
        npm.config.set('save-dev', true)
        npm.config.set('save-prefix', '~')
        npm.commands.install(['underscore@1.3.1'], function(err) {
          t.ifError(err)
          var p = path.resolve(pkg, 'node_modules/underscore/package.json')
          t.ok(JSON.parse(fs.readFileSync(p)))
          var pkgJson = JSON.parse(fs.readFileSync(pkg + '/package.json', 'utf8'))
          t.deepEqual(pkgJson.devDependencies, {
            'underscore': '~1.3.1'
          }, 'Underscore devDependency should specify ~1.3.1')
          npm.config.set('save-dev', undefined)
          npm.config.set('save-prefix', undefined)
          s.close()
          t.end()
        })
      })
  })
})

test('cleanup', function(t) {
  process.chdir(__dirname)
  rimraf.sync(path.resolve(pkg, 'node_modules'))
  rimraf.sync(path.resolve(pkg, 'cache'))
  resetPackageJSON(pkg)
  t.end()
})

function resetPackageJSON(pkg) {
  var pkgJson = JSON.parse(fs.readFileSync(pkg + '/package.json', 'utf8'))
  delete pkgJson.dependencies
  delete pkgJson.devDependencies
  delete pkgJson.optionalDependencies
  var json = JSON.stringify(pkgJson, null, 2) + "\n"
  fs.writeFileSync(pkg + '/package.json', json, "ascii")
}