SandboxedModule = require('sandboxed-module')
sinon = require('sinon')
chai = require('chai')
chai.should()
expect = chai.expect
modulePath = require('path').join __dirname, '../../../app/js/DocManager'
ObjectId = require("mongojs").ObjectId

describe "DocManager", ->
	beforeEach ->
		@DocManager = SandboxedModule.require modulePath, requires:
			"./MongoManager": @MongoManager = {}
		@doc_id = ObjectId().toString()
		@project_id = ObjectId().toString()
		@callback = sinon.stub()

	describe "getDoc", ->
		describe "when the project exists", ->
			beforeEach -> 
				@project = { name: "mock-project" }
				@doc = { _id: @doc_id, lines: ["mock-lines"] }
				@MongoManager.findProject = sinon.stub().callsArgWith(1, null, @project)
				@DocManager.findDocInProject = sinon.stub().callsArgWith(2, null, @doc)
				@DocManager.getDoc @project_id, @doc_id, @callback

			it "should get the project from the database", ->
				@MongoManager.findProject
					.calledWith(@project_id)
					.should.equal true

			it "should find the doc in the project", ->
				@DocManager.findDocInProject
					.calledWith(@project, @doc_id)
					.should.equal true

			it "should return the doc", ->
				@callback.calledWith(null, @doc).should.equal true

		describe "when the project does not exist", ->
			beforeEach -> 
				@MongoManager.findProject = sinon.stub().callsArgWith(1, null, @null)
				@DocManager.findDocInProject = sinon.stub()
				@DocManager.getDoc @project_id, @doc_id, @callback

			it "should not try to find the doc in the project", ->
				@DocManager.findDocInProject.called.should.equal false

			it "should return null", ->
				@callback.calledWith(null, null).should.equal true

	describe "findDocInProject", ->
		it "should find the doc when it is in the root folder", (done) ->
			@DocManager.findDocInProject {
				rootFolder: [{
					docs: [{
						_id: ObjectId(@doc_id)
					}]
				}]
			}, @doc_id, (error, doc, mongoPath) =>
				expect(doc).to.deep.equal { _id: ObjectId(@doc_id) }
				mongoPath.should.equal "rootFolder.0.docs.0"
				done()

		it "should find the doc when it is in a sub folder", (done) ->
			@DocManager.findDocInProject {
				rootFolder: [{
					folders: [{
						docs: [{
							_id: ObjectId(@doc_id)
						}]
					}]
				}]
			}, @doc_id, (error, doc, mongoPath) =>
				expect(doc).to.deep.equal { _id: ObjectId(@doc_id) }
				mongoPath.should.equal "rootFolder.0.folders.0.docs.0"
				done()

		it "should find the doc when it there are other docs", (done) ->
			@DocManager.findDocInProject {
				rootFolder: [{
					folders: [{
						docs: [{
							_id: ObjectId()
						}]
					}, {
						docs: [{
							_id: ObjectId()
						}, {
							_id: ObjectId(@doc_id)
						}]
					}],
					docs: [{
						_id: ObjectId()
					}]
				}]
			}, @doc_id, (error, doc, mongoPath) =>
				expect(doc).to.deep.equal { _id: ObjectId(@doc_id) }
				mongoPath.should.equal "rootFolder.0.folders.1.docs.1"
				done()

		it "should return null when the doc doesn't exist", (done) ->
			@DocManager.findDocInProject {
				rootFolder: [{
					folders: [{
						docs: []
					}]
				}]
			}, @doc_id, (error, doc, mongoPath) =>
				expect(doc).to.be.null
				expect(mongoPath).to.be.null
				done()