var tar = require('../')
var path = require('path')
var rfile = require('rfile')
var rimraf = require('rimraf').sync
var mkdir = require('mkdirp').sync

var read = require('fs').createReadStream
var write = require('fs').createWriteStream
var assert = require('assert')

beforeEach(function () {
  rimraf(__dirname + '/output')
})
afterEach(function () {
  rimraf(__dirname + '/output')
})
describe('tarball.pipe(unpack(directory, callback))', function () {
  it('unpacks the tarball into the directory', function (done) {
    read(__dirname + '/fixtures/packed.tar').pipe(tar.unpack(__dirname + '/output/unpacked', function (err) {
      if (err) return done(err)
      assert.equal(rfile('./output/unpacked/bar.txt'), rfile('./fixtures/to-pack/bar.txt'))
      assert.equal(rfile('./output/unpacked/foo.txt'), rfile('./fixtures/to-pack/foo.txt'))
      done()
    }))
  })
  it('unpacks the tarball into the directory without deleting existing files', function (done) {
    read(__dirname + '/fixtures/packed-file.txt').pipe(tar.unpack(__dirname + '/output/unpacked', function (err) {
      if (err) return done(err)
      read(__dirname + '/fixtures/packed.tar').pipe(tar.unpack(__dirname + '/output/unpacked', {keepFiles: true}, function (err) {
        if (err) return done(err)
        assert.equal(rfile('./output/unpacked/index.js'), rfile('./fixtures/packed-file.txt'))
        done()
      }))
    }))
  })
})
describe('tarball.pipe(unpack(directory, { strip: 0 }, callback))', function () {
  it('unpacks the tarball into the directory with subdir package', function (done) {
    read(__dirname + '/fixtures/packed.tar').pipe(tar.unpack(__dirname + '/output/unpacked', { strip: 0 } , function (err) {
      if (err) return done(err)
      assert.equal(rfile('./output/unpacked/package/bar.txt'), rfile('./fixtures/to-pack/bar.txt'))
      assert.equal(rfile('./output/unpacked/package/foo.txt'), rfile('./fixtures/to-pack/foo.txt'))
      done()
    }))
  })
})
describe('gziptarball.pipe(unpack(directory, callback))', function () {
  it('unpacks the tarball into the directory', function (done) {
    read(__dirname + '/fixtures/packed.tar.gz').pipe(tar.unpack(__dirname + '/output/unpacked', function (err) {
      if (err) return done(err)
      assert.equal(rfile('./output/unpacked/bar.txt'), rfile('./fixtures/to-pack/bar.txt'))
      assert.equal(rfile('./output/unpacked/foo.txt'), rfile('./fixtures/to-pack/foo.txt'))
      done()
    }))
  })
})
describe('file.pipe(unpack(directory, callback))', function () {
  it('copies the file into the directory', function (done) {
    read(__dirname + '/fixtures/packed-file.txt').pipe(tar.unpack(__dirname + '/output/unpacked', function (err) {
      if (err) return done(err)
      assert.equal(rfile('./output/unpacked/index.js'), rfile('./fixtures/packed-file.txt'))
      done()
    }))
  })
})
describe('pack(directory).pipe(tarball)', function () {
  it('packs the directory into the output', function (done) {
    var called = false
    mkdir(__dirname + '/output/')
    tar.pack(__dirname + '/fixtures/to-pack').pipe(write(__dirname + '/output/packed.tar.gz'))
      .on('error', function (err) {
        if (called) return
        called = true
        done(err)
      })
      .on('close', function () {
        if (called) return
        called = true
        read(__dirname + '/output/packed.tar.gz').pipe(tar.unpack(__dirname + '/output/unpacked', function (err) {
          if (err) return done(err)
          assert.equal(rfile('./output/unpacked/bar.txt'), rfile('./fixtures/to-pack/bar.txt'))
          assert.equal(rfile('./output/unpacked/foo.txt'), rfile('./fixtures/to-pack/foo.txt'))
          done()
        }))
      })
  })
})
describe('pack(directory, { fromBase: true }).pipe(tarball)', function () {
  it('packs the directory with input dir as base dir', function (done) {
    var called = false
    mkdir(__dirname + '/output/')
    tar.pack(__dirname + '/fixtures/to-pack', { fromBase: true }).pipe(write(__dirname + '/output/packed.tar.gz'))
      .on('error', function (err) {
        if (called) return
        called = true
        done(err)
      })
      .on('close', function () {
        if (called) return
        called = true
        read(__dirname + '/output/packed.tar.gz').pipe(tar.unpack(__dirname + '/output/unpacked', { strip: 0 }, function (err) {
          if (err) return done(err)
          assert.equal(rfile('./output/unpacked/bar.txt'), rfile('./fixtures/to-pack/bar.txt'))
          assert.equal(rfile('./output/unpacked/foo.txt'), rfile('./fixtures/to-pack/foo.txt'))
          done()
        }))
      })
  })
})