const SandboxedModule = require('sandboxed-module')
const sinon = require('sinon')
const { expect } = require('chai')
const { ObjectId } = require('mongodb')
const Errors = require('../../../../app/src/Features/Errors/Errors')
const HttpErrors = require('@overleaf/o-error/http')

const MODULE_PATH = '../../../../app/src/Features/Editor/EditorHttpController'

describe('EditorHttpController', function() {
  beforeEach(function() {
    this.ownerId = new ObjectId()
    this.project = {
      _id: new ObjectId(),
      owner_ref: this.ownerId
    }
    this.user = {
      _id: new ObjectId(),
      projects: {}
    }
    this.projectView = {
      _id: this.project._id,
      owner: {
        _id: 'owner',
        email: 'owner@example.com',
        other_property: true
      }
    }
    this.reducedProjectView = {
      _id: this.projectView._id,
      owner: { _id: this.projectView.owner._id }
    }
    this.doc = { _id: new ObjectId(), name: 'excellent-original-idea.tex' }
    this.file = { _id: new ObjectId() }
    this.folder = { _id: new ObjectId() }

    this.parentFolderId = 'mock-folder-id'
    this.req = { i18n: { translate: string => string } }
    this.res = {
      send: sinon.stub().returns(this.res),
      status: sinon.stub().returns(this.res),
      sendStatus: sinon.stub().returns(this.res),
      json: sinon.stub().returns(this.res)
    }
    this.next = sinon.stub()
    this.token = null
    this.docLines = ['hello', 'overleaf']

    this.AuthorizationManager = {
      isRestrictedUser: sinon.stub().returns(false),
      promises: {
        getPrivilegeLevelForProject: sinon.stub().resolves('owner')
      }
    }
    this.CollaboratorsGetter = {
      promises: {
        getInvitedMembersWithPrivilegeLevels: sinon
          .stub()
          .resolves(['members', 'mock'])
      }
    }
    this.CollaboratorsHandler = {
      promises: {
        userIsTokenMember: sinon.stub().resolves(false)
      }
    }
    this.CollaboratorsInviteHandler = {
      promises: {
        getAllInvites: sinon.stub().resolves([
          {
            _id: 'invite_one',
            email: 'user-one@example.com',
            privileges: 'readOnly',
            projectId: this.project._id
          },
          {
            _id: 'invite_two',
            email: 'user-two@example.com',
            privileges: 'readOnly',
            projectId: this.project._id
          }
        ])
      }
    }
    this.EditorController = {
      promises: {
        addDoc: sinon.stub().resolves(this.doc),
        addFile: sinon.stub().resolves(this.file),
        addFolder: sinon.stub().resolves(this.folder),
        renameEntity: sinon.stub().resolves(),
        moveEntity: sinon.stub().resolves(),
        deleteEntity: sinon.stub().resolves()
      }
    }
    this.ProjectDeleter = {
      promises: {
        unmarkAsDeletedByExternalSource: sinon.stub().resolves()
      }
    }
    this.ProjectGetter = {
      promises: {
        getProjectWithoutDocLines: sinon.stub().resolves(this.project)
      }
    }
    this.ProjectEditorHandler = {
      buildProjectModelView: sinon.stub().returns(this.projectView)
    }
    this.logger = {
      log: sinon.stub(),
      error: sinon.stub()
    }
    this.Metrics = { inc: sinon.stub() }
    this.TokenAccessHandler = {
      getRequestToken: sinon.stub().returns(this.token),
      protectTokens: sinon.stub()
    }
    this.AuthenticationController = {
      getLoggedInUserId: sinon.stub().returns(this.user._id)
    }
    this.ProjectEntityUpdateHandler = {
      promises: {
        convertDocToFile: sinon.stub().resolves(this.file)
      }
    }
    this.EditorHttpController = SandboxedModule.require(MODULE_PATH, {
      globals: {
        console: console
      },
      requires: {
        '../Project/ProjectDeleter': this.ProjectDeleter,
        '../Project/ProjectGetter': this.ProjectGetter,
        '../Authorization/AuthorizationManager': this.AuthorizationManager,
        '../Project/ProjectEditorHandler': this.ProjectEditorHandler,
        'logger-sharelatex': this.logger,
        './EditorController': this.EditorController,
        'metrics-sharelatex': this.Metrics,
        '../Collaborators/CollaboratorsGetter': this.CollaboratorsGetter,
        '../Collaborators/CollaboratorsHandler': this.CollaboratorsHandler,
        '../Collaborators/CollaboratorsInviteHandler': this
          .CollaboratorsInviteHandler,
        '../TokenAccess/TokenAccessHandler': this.TokenAccessHandler,
        '../Authentication/AuthenticationController': this
          .AuthenticationController,
        '../../infrastructure/FileWriter': this.FileWriter,
        '../Project/ProjectEntityUpdateHandler': this
          .ProjectEntityUpdateHandler,
        '../Errors/Errors': Errors,
        '@overleaf/o-error/http': HttpErrors
      }
    })
  })

  describe('joinProject', function() {
    beforeEach(function() {
      this.req.params = { Project_id: this.project._id }
      this.req.query = { user_id: this.user._id }
    })

    describe('successfully', function() {
      beforeEach(function(done) {
        this.res.json.callsFake(() => done())
        this.EditorHttpController.joinProject(this.req, this.res)
      })

      it('should return the project and privilege level', function() {
        expect(this.res.json).to.have.been.calledWith({
          project: this.projectView,
          privilegeLevel: 'owner',
          isRestrictedUser: false
        })
      })

      it('should not try to unmark the project as deleted', function() {
        expect(this.ProjectDeleter.promises.unmarkAsDeletedByExternalSource).not
          .to.have.been.called
      })

      it('should send an inc metric', function() {
        expect(this.Metrics.inc).to.have.been.calledWith('editor.join-project')
      })
    })

    describe('when the project is marked as deleted', function() {
      beforeEach(function(done) {
        this.projectView.deletedByExternalDataSource = true
        this.res.json.callsFake(() => done())
        this.EditorHttpController.joinProject(this.req, this.res)
      })

      it('should unmark the project as deleted', function() {
        expect(
          this.ProjectDeleter.promises.unmarkAsDeletedByExternalSource
        ).to.have.been.calledWith(this.project._id)
      })
    })

    describe('with a restricted user', function() {
      beforeEach(function(done) {
        this.AuthorizationManager.isRestrictedUser.returns(true)
        this.AuthorizationManager.promises.getPrivilegeLevelForProject.resolves(
          'readOnly'
        )
        this.res.json.callsFake(() => done())
        this.EditorHttpController.joinProject(this.req, this.res)
      })

      it('should mark the user as restricted, and hide details of owner', function() {
        expect(this.res.json).to.have.been.calledWith({
          project: this.reducedProjectView,
          privilegeLevel: 'readOnly',
          isRestrictedUser: true
        })
      })
    })

    describe('when not authorized', function() {
      beforeEach(function(done) {
        this.AuthorizationManager.promises.getPrivilegeLevelForProject.resolves(
          null
        )
        this.res.sendStatus.callsFake(() => done())
        this.EditorHttpController.joinProject(this.req, this.res)
      })

      it('should send a 403 response', function() {
        expect(this.res.sendStatus).to.have.been.calledWith(403)
      })
    })

    describe('with an anonymous user', function() {
      beforeEach(function(done) {
        this.req.query = { user_id: 'anonymous-user' }
        this.res.json.callsFake(() => done())
        this.AuthorizationManager.isRestrictedUser
          .withArgs(null, 'readOnly', false)
          .returns(true)
        this.AuthorizationManager.promises.getPrivilegeLevelForProject
          .withArgs(null, this.project._id, this.token)
          .resolves('readOnly')
        this.EditorHttpController.joinProject(this.req, this.res)
      })

      it('should mark the user as restricted', function() {
        expect(this.res.json).to.have.been.calledWith({
          project: this.reducedProjectView,
          privilegeLevel: 'readOnly',
          isRestrictedUser: true
        })
      })
    })

    describe('when project is not found', function() {
      beforeEach(function(done) {
        this.ProjectGetter.promises.getProjectWithoutDocLines.resolves(null)
        this.next.callsFake(() => done())
        this.EditorHttpController.joinProject(this.req, this.res, this.next)
      })

      it('should handle return not found error', function() {
        expect(this.next).to.have.been.calledWith(
          sinon.match.instanceOf(Errors.NotFoundError)
        )
      })
    })
  })

  describe('addDoc', function() {
    beforeEach(function() {
      this.req.params = { Project_id: this.project._id }
      this.req.body = {
        name: (this.name = 'doc-name'),
        parent_folder_id: this.parentFolderId
      }
    })

    describe('successfully', function() {
      beforeEach(function(done) {
        this.res.json.callsFake(() => done())
        this.EditorHttpController.addDoc(this.req, this.res)
      })

      it('should call EditorController.addDoc', function() {
        expect(this.EditorController.promises.addDoc).to.have.been.calledWith(
          this.project._id,
          this.parentFolderId,
          this.name,
          [],
          'editor',
          this.user._id
        )
      })

      it('should send the doc back as JSON', function() {
        expect(this.res.json).to.have.been.calledWith(this.doc)
      })
    })

    describe('unsuccesfully', function() {
      it('handle name too short', function(done) {
        this.req.body.name = ''
        this.res.sendStatus.callsFake(status => {
          expect(status).to.equal(400)
          done()
        })
        this.EditorHttpController.addDoc(this.req, this.res)
      })

      it('handle too many files', function(done) {
        this.EditorController.promises.addDoc.rejects(
          new Error('project_has_too_many_files')
        )
        this.res.json.callsFake(payload => {
          expect(payload).to.equal('project_has_too_many_files')
          expect(this.res.status).to.have.been.calledWith(400)
          done()
        })
        this.res.status.returns(this.res)
        this.EditorHttpController.addDoc(this.req, this.res)
      })
    })
  })

  describe('addFolder', function() {
    beforeEach(function() {
      this.folderName = 'folder-name'
      this.req.params = { Project_id: this.project._id }
      this.req.body = {
        name: this.folderName,
        parent_folder_id: this.parentFolderId
      }
    })

    describe('successfully', function() {
      beforeEach(function(done) {
        this.res.json.callsFake(() => done())
        this.EditorHttpController.addFolder(this.req, this.res)
      })

      it('should call EditorController.addFolder', function() {
        expect(
          this.EditorController.promises.addFolder
        ).to.have.been.calledWith(
          this.project._id,
          this.parentFolderId,
          this.folderName,
          'editor'
        )
      })

      it('should send the folder back as JSON', function() {
        expect(this.res.json).to.have.been.calledWith(this.folder)
      })
    })

    describe('unsuccesfully', function() {
      it('handle name too short', function(done) {
        this.req.body.name = ''
        this.res.sendStatus.callsFake(status => {
          expect(status).to.equal(400)
          done()
        })
        this.EditorHttpController.addFolder(this.req, this.res)
      })

      it('handle too many files', function(done) {
        this.EditorController.promises.addFolder.rejects(
          new Error('project_has_too_many_files')
        )
        this.res.json.callsFake(payload => {
          expect(payload).to.equal('project_has_too_many_files')
          expect(this.res.status).to.have.been.calledWith(400)
          done()
        })
        this.res.status.returns(this.res)
        this.EditorHttpController.addFolder(this.req, this.res)
      })

      it('handle invalid element name', function(done) {
        this.EditorController.promises.addFolder.rejects(
          new Error('invalid element name')
        )
        this.res.json.callsFake(payload => {
          expect(payload).to.equal('invalid_file_name')
          expect(this.res.status).to.have.been.calledWith(400)
          done()
        })
        this.res.status.returns(this.res)
        this.EditorHttpController.addFolder(this.req, this.res)
      })
    })
  })

  describe('renameEntity', function() {
    beforeEach(function() {
      this.entityId = 'entity-id-123'
      this.entityType = 'entity-type'
      this.req.params = {
        Project_id: this.project._id,
        entity_id: this.entityId,
        entity_type: this.entityType
      }
    })

    describe('successfully', function() {
      beforeEach(function(done) {
        this.newName = 'new-name'
        this.req.body = { name: this.newName }
        this.res.sendStatus.callsFake(() => done())
        this.EditorHttpController.renameEntity(this.req, this.res)
      })

      it('should call EditorController.renameEntity', function() {
        expect(
          this.EditorController.promises.renameEntity
        ).to.have.been.calledWith(
          this.project._id,
          this.entityId,
          this.entityType,
          this.newName,
          this.user._id
        )
      })

      it('should send back a success response', function() {
        expect(this.res.sendStatus).to.have.been.calledWith(204)
      })
    })
    describe('with long name', function() {
      beforeEach(function() {
        this.newName = 'long'.repeat(100)
        this.req.body = { name: this.newName }
        this.EditorHttpController.renameEntity(this.req, this.res)
      })

      it('should send back a bad request status code', function() {
        expect(this.res.sendStatus).to.have.been.calledWith(400)
      })
    })

    describe('with 0 length name', function() {
      beforeEach(function() {
        this.newName = ''
        this.req.body = { name: this.newName }
        this.EditorHttpController.renameEntity(this.req, this.res)
      })

      it('should send back a bad request status code', function() {
        expect(this.res.sendStatus).to.have.been.calledWith(400)
      })
    })
  })

  describe('moveEntity', function() {
    beforeEach(function(done) {
      this.entityId = 'entity-id-123'
      this.entityType = 'entity-type'
      this.folderId = 'folder-id-123'
      this.req.params = {
        Project_id: this.project._id,
        entity_id: this.entityId,
        entity_type: this.entityType
      }
      this.req.body = { folder_id: this.folderId }
      this.res.sendStatus.callsFake(() => done())
      this.EditorHttpController.moveEntity(this.req, this.res)
    })

    it('should call EditorController.moveEntity', function() {
      expect(this.EditorController.promises.moveEntity).to.have.been.calledWith(
        this.project._id,
        this.entityId,
        this.folderId,
        this.entityType,
        this.user._id
      )
    })

    it('should send back a success response', function() {
      expect(this.res.sendStatus).to.have.been.calledWith(204)
    })
  })

  describe('deleteEntity', function() {
    beforeEach(function(done) {
      this.entityId = 'entity-id-123'
      this.entityType = 'entity-type'
      this.req.params = {
        Project_id: this.project._id,
        entity_id: this.entityId,
        entity_type: this.entityType
      }
      this.res.sendStatus.callsFake(() => done())
      this.EditorHttpController.deleteEntity(this.req, this.res)
    })

    it('should call EditorController.deleteEntity', function() {
      expect(
        this.EditorController.promises.deleteEntity
      ).to.have.been.calledWith(
        this.project._id,
        this.entityId,
        this.entityType,
        'editor',
        this.user._id
      )
    })

    it('should send back a success response', function() {
      expect(this.res.sendStatus).to.have.been.calledWith(204)
    })
  })

  describe('convertDocToFile', function() {
    beforeEach(function(done) {
      this.req.params = {
        Project_id: this.project._id.toString(),
        entity_id: this.doc._id.toString()
      }
      this.req.body = { userId: this.user._id.toString() }
      this.res.json.callsFake(() => done())
      this.EditorHttpController.convertDocToFile(this.req, this.res)
    })

    describe('when successful', function() {
      it('should convert the doc to a file', function() {
        expect(
          this.ProjectEntityUpdateHandler.promises.convertDocToFile
        ).to.have.been.calledWith(
          this.project._id.toString(),
          this.doc._id.toString(),
          this.user._id.toString()
        )
      })

      it('should return the file id in the response', function() {
        expect(this.res.json).to.have.been.calledWith({
          fileId: this.file._id.toString()
        })
      })
    })

    describe('when the doc has ranges', function() {
      it('should return a 422', function(done) {
        this.ProjectEntityUpdateHandler.promises.convertDocToFile.rejects(
          new Errors.DocHasRangesError({})
        )
        this.EditorHttpController.convertDocToFile(this.req, this.res, err => {
          expect(err).to.be.instanceof(HttpErrors.UnprocessableEntityError)
          done()
        })
      })
    })
  })
})