/* eslint-disable
    no-return-assign,
    no-unused-vars,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const SandboxedModule = require('sandboxed-module')
const sinon = require('sinon')
const { expect } = require('chai')
const should = require('chai').should()
const modulePath = require('path').join(
  __dirname,
  '../../../app/js/ResourceStateManager'
)
const Path = require('path')
const Errors = require('../../../app/js/Errors')

describe('ResourceStateManager', function () {
  beforeEach(function () {
    this.ResourceStateManager = SandboxedModule.require(modulePath, {
      singleOnly: true,
      requires: {
        fs: (this.fs = {}),
        'logger-sharelatex': { log: sinon.stub(), err: sinon.stub() },
        './SafeReader': (this.SafeReader = {})
      }
    })
    this.basePath = '/path/to/write/files/to'
    this.resources = [
      { path: 'resource-1-mock' },
      { path: 'resource-2-mock' },
      { path: 'resource-3-mock' }
    ]
    this.state = '1234567890'
    this.resourceFileName = `${this.basePath}/.project-sync-state`
    this.resourceFileContents = `${this.resources[0].path}\n${this.resources[1].path}\n${this.resources[2].path}\nstateHash:${this.state}`
    return (this.callback = sinon.stub())
  })

  describe('saveProjectState', function () {
    beforeEach(function () {
      return (this.fs.writeFile = sinon.stub().callsArg(2))
    })

    describe('when the state is specified', function () {
      beforeEach(function () {
        return this.ResourceStateManager.saveProjectState(
          this.state,
          this.resources,
          this.basePath,
          this.callback
        )
      })

      it('should write the resource list to disk', function () {
        return this.fs.writeFile
          .calledWith(this.resourceFileName, this.resourceFileContents)
          .should.equal(true)
      })

      return it('should call the callback', function () {
        return this.callback.called.should.equal(true)
      })
    })

    return describe('when the state is undefined', function () {
      beforeEach(function () {
        this.state = undefined
        this.fs.unlink = sinon.stub().callsArg(1)
        return this.ResourceStateManager.saveProjectState(
          this.state,
          this.resources,
          this.basePath,
          this.callback
        )
      })

      it('should unlink the resource file', function () {
        return this.fs.unlink
          .calledWith(this.resourceFileName)
          .should.equal(true)
      })

      it('should not write the resource list to disk', function () {
        return this.fs.writeFile.called.should.equal(false)
      })

      return it('should call the callback', function () {
        return this.callback.called.should.equal(true)
      })
    })
  })

  describe('checkProjectStateMatches', function () {
    describe('when the state matches', function () {
      beforeEach(function () {
        this.SafeReader.readFile = sinon
          .stub()
          .callsArgWith(3, null, this.resourceFileContents)
        return this.ResourceStateManager.checkProjectStateMatches(
          this.state,
          this.basePath,
          this.callback
        )
      })

      it('should read the resource file', function () {
        return this.SafeReader.readFile
          .calledWith(this.resourceFileName)
          .should.equal(true)
      })

      return it('should call the callback with the results', function () {
        return this.callback
          .calledWithMatch(null, this.resources)
          .should.equal(true)
      })
    })

    return describe('when the state does not match', function () {
      beforeEach(function () {
        this.SafeReader.readFile = sinon
          .stub()
          .callsArgWith(3, null, this.resourceFileContents)
        return this.ResourceStateManager.checkProjectStateMatches(
          'not-the-original-state',
          this.basePath,
          this.callback
        )
      })

      it('should call the callback with an error', function () {
        this.callback
          .calledWith(sinon.match(Errors.FilesOutOfSyncError))
          .should.equal(true)

        const message = this.callback.args[0][0].message
        expect(message).to.include('invalid state for incremental update')
      })
    })
  })

  return describe('checkResourceFiles', function () {
    describe('when all the files are present', function () {
      beforeEach(function () {
        this.allFiles = [
          this.resources[0].path,
          this.resources[1].path,
          this.resources[2].path
        ]
        return this.ResourceStateManager.checkResourceFiles(
          this.resources,
          this.allFiles,
          this.basePath,
          this.callback
        )
      })

      return it('should call the callback', function () {
        return this.callback.calledWithExactly().should.equal(true)
      })
    })

    describe('when there is a missing file', function () {
      beforeEach(function () {
        this.allFiles = [this.resources[0].path, this.resources[1].path]
        this.fs.stat = sinon.stub().callsArgWith(1, new Error())
        return this.ResourceStateManager.checkResourceFiles(
          this.resources,
          this.allFiles,
          this.basePath,
          this.callback
        )
      })

      it('should call the callback with an error', function () {
        this.callback
          .calledWith(sinon.match(Errors.FilesOutOfSyncError))
          .should.equal(true)

        const message = this.callback.args[0][0].message
        expect(message).to.include(
          'resource files missing in incremental update'
        )
      })
    })

    return describe('when a resource contains a relative path', function () {
      beforeEach(function () {
        this.resources[0].path = '../foo/bar.tex'
        this.allFiles = [
          this.resources[0].path,
          this.resources[1].path,
          this.resources[2].path
        ]
        return this.ResourceStateManager.checkResourceFiles(
          this.resources,
          this.allFiles,
          this.basePath,
          this.callback
        )
      })

      it('should call the callback with an error', function () {
        this.callback.calledWith(sinon.match(Error)).should.equal(true)

        const message = this.callback.args[0][0].message
        expect(message).to.include('relative path in resource file list')
      })
    })
  })
})