/*
 * Copyright 2016 resin.io
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict'

const m = require('mochainon')
const fs = require('fs')
const path = require('path')
const DATA_PATH = path.join(__dirname, 'data')
const IMAGES_PATH = path.join(DATA_PATH, 'images')
const imageStream = require('../../lib/image-stream/index')
const tester = require('./tester')

describe('ImageStream: IMG', function () {
  this.timeout(tester.DEFAULT_IMAGE_TESTS_TIMEOUT)

  describe('.getFromFilePath()', function () {
    describe('given an img image', function () {
      tester.extractFromFilePath(
        path.join(IMAGES_PATH, 'etcher-test.img'),
        path.join(IMAGES_PATH, 'etcher-test.img'))
    })
  })

  describe('.getImageMetadata()', function () {
    context('Master Boot Record', function () {
      it('should return the correct metadata', function () {
        const image = path.join(IMAGES_PATH, 'etcher-test.img')
        const expectedSize = fs.statSync(image).size

        return imageStream.getImageMetadata(image).then((metadata) => {
          m.chai.expect(metadata).to.deep.equal({
            path: image,
            extension: 'img',
            size: {
              original: expectedSize,
              final: {
                estimation: false,
                value: expectedSize
              }
            },
            hasMBR: true,
            hasGPT: false,
            partitions: require('./data/images/etcher-test-partitions.json')
          })
        })
      })
    })

    context('GUID Partition Table', function () {
      it('should return the correct metadata', function () {
        const image = path.join(IMAGES_PATH, 'etcher-gpt-test.img.gz')
        const uncompressedSize = 134217728
        const expectedSize = fs.statSync(image).size

        return imageStream.getImageMetadata(image).then((metadata) => {
          m.chai.expect(metadata).to.deep.equal({
            path: image,
            extension: 'img',
            archiveExtension: 'gz',
            size: {
              original: expectedSize,
              final: {
                estimation: true,
                value: uncompressedSize
              }
            },
            hasMBR: true,
            hasGPT: true,
            partitions: require('./data/images/etcher-gpt-test-partitions.json')
          })
        })
      })
    })
  })
})