/*
 * 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');
require('chai').should();
const { expect } = require('chai');
const modulePath = require('path').join(__dirname, '../../../app/js/RequestParser');
const tk = require("timekeeper");

describe("RequestParser", function() {
	beforeEach(function() {
		tk.freeze();
		this.callback = sinon.stub();
		this.validResource = {
			path: "main.tex",
			date: "12:00 01/02/03",
			content: "Hello world"
		};
		this.validRequest = {
			compile: {
				token: "token-123",
				options: {
					imageName: "basicImageName/here:2017-1",
					compiler: "pdflatex",
					timeout:  42
				},
				resources: []
			}
		};
		return this.RequestParser = SandboxedModule.require(modulePath, { requires: {
			"settings-sharelatex": (this.settings = {})
		}
	});});

	afterEach(() => tk.reset());

	describe("without a top level object", function() {
		beforeEach(function() {
			return this.RequestParser.parse([], this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("top level object should have a compile attribute")
				.should.equal(true);
		});
	});

	describe("without a compile attribute", function() {
		beforeEach(function() {
			return this.RequestParser.parse({}, this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("top level object should have a compile attribute")
				.should.equal(true);
		});
	});

	describe("without a valid compiler", function() {
		beforeEach(function() {
			this.validRequest.compile.options.compiler = "not-a-compiler";
			return this.RequestParser.parse(this.validRequest, this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("compiler attribute should be one of: pdflatex, latex, xelatex, lualatex")
				.should.equal(true);
		});
	});

	describe("without a compiler specified", function() {
		beforeEach(function() {
			delete this.validRequest.compile.options.compiler;
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("should set the compiler to pdflatex by default", function() {
			return this.data.compiler.should.equal("pdflatex");
		});
	});

	describe("with imageName set", function() {
		beforeEach(function() {
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("should set the imageName", function() {
			return this.data.imageName.should.equal("basicImageName/here:2017-1");
		});
	});

	describe("with flags set", function() {
		beforeEach(function() {
			this.validRequest.compile.options.flags = ["-file-line-error"];
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("should set the flags attribute", function() {
			return expect(this.data.flags).to.deep.equal(["-file-line-error"]);
	});
});

	describe("with flags not specified", function() {
		beforeEach(function() {
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("it should have an empty flags list", function() {
			return expect(this.data.flags).to.deep.equal([]);
	});
});

	describe("without a timeout specified", function() {
		beforeEach(function() {
			delete this.validRequest.compile.options.timeout;
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("should set the timeout to MAX_TIMEOUT", function() {
			return this.data.timeout.should.equal(this.RequestParser.MAX_TIMEOUT * 1000);
		});
	});

	describe("with a timeout larger than the maximum", function() {
		beforeEach(function() {
			this.validRequest.compile.options.timeout = this.RequestParser.MAX_TIMEOUT + 1;
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("should set the timeout to MAX_TIMEOUT", function() {
			return this.data.timeout.should.equal(this.RequestParser.MAX_TIMEOUT * 1000);
		});
	});

	describe("with a timeout", function() {
		beforeEach(function() {
			return this.RequestParser.parse(this.validRequest, (error, data) => {
				this.data = data;
				
		});
		});

		return it("should set the timeout (in milliseconds)", function() {
			return this.data.timeout.should.equal(this.validRequest.compile.options.timeout * 1000);
		});
	});

	describe("with a resource without a path", function() {
		beforeEach(function() {
			delete this.validResource.path;
			this.validRequest.compile.resources.push(this.validResource);
			return this.RequestParser.parse(this.validRequest, this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("all resources should have a path attribute")
				.should.equal(true);
		});
	});

	describe("with a resource with a path", function() {
		beforeEach(function() {
			this.validResource.path = (this.path = "test.tex");
			this.validRequest.compile.resources.push(this.validResource);
			this.RequestParser.parse(this.validRequest, this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return the path in the parsed response", function() {
			return this.data.resources[0].path.should.equal(this.path);
		});
	});

	describe("with a resource with a malformed modified date", function() {
		beforeEach(function() {
			this.validResource.modified = "not-a-date";
			this.validRequest.compile.resources.push(this.validResource);
			return this.RequestParser.parse(this.validRequest, this.callback);
		});

		return it("should return an error", function() {
			return this.callback
				.calledWith(
					"resource modified date could not be understood: "+
					this.validResource.modified
				)
				.should.equal(true);
		});
	});

	describe("with a resource with a valid date", function() {
		beforeEach(function() {
			this.date = "12:00 01/02/03";
			this.validResource.modified = this.date;
			this.validRequest.compile.resources.push(this.validResource);
			this.RequestParser.parse(this.validRequest, this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return the date as a Javascript Date object", function() {
			(this.data.resources[0].modified instanceof Date).should.equal(true);
			return this.data.resources[0].modified.getTime().should.equal(Date.parse(this.date));
		});
	});

	describe("with a resource without either a content or URL attribute", function() {
		beforeEach(function() {
			delete this.validResource.url;
			delete this.validResource.content;
			this.validRequest.compile.resources.push(this.validResource);
			return this.RequestParser.parse(this.validRequest, this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("all resources should have either a url or content attribute")
				.should.equal(true);
		});
	});

	describe("with a resource where the content is not a string", function() {
		beforeEach(function() {
			this.validResource.content = [];
			this.validRequest.compile.resources.push(this.validResource);
			return this.RequestParser.parse((this.validRequest), this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("content attribute should be a string")
				.should.equal(true);
		});
	});

	describe("with a resource where the url is not a string", function() {
		beforeEach(function() {
			this.validResource.url = [];
			this.validRequest.compile.resources.push(this.validResource);
			return this.RequestParser.parse((this.validRequest), this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("url attribute should be a string")
				.should.equal(true);
		});
	});

	describe("with a resource with a url", function() {
		beforeEach(function() {
			this.validResource.url = (this.url = "www.example.com");
			this.validRequest.compile.resources.push(this.validResource);
			this.RequestParser.parse((this.validRequest), this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return the url in the parsed response", function() {
			return this.data.resources[0].url.should.equal(this.url);
		});
	});

	describe("with a resource with a content attribute", function() {
		beforeEach(function() {
			this.validResource.content = (this.content = "Hello world");
			this.validRequest.compile.resources.push(this.validResource);
			this.RequestParser.parse((this.validRequest), this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return the content in the parsed response", function() {
			return this.data.resources[0].content.should.equal(this.content);
		});
	});

	describe("without a root resource path", function() {
		beforeEach(function() {
			delete this.validRequest.compile.rootResourcePath;
			this.RequestParser.parse((this.validRequest), this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should set the root resource path to 'main.tex' by default", function() {
			return this.data.rootResourcePath.should.equal("main.tex");
		});
	});

	describe("with a root resource path", function() {
		beforeEach(function() {
			this.validRequest.compile.rootResourcePath = (this.path = "test.tex");
			this.RequestParser.parse((this.validRequest), this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return the root resource path in the parsed response", function() {
			return this.data.rootResourcePath.should.equal(this.path);
		});
	});

	describe("with a root resource path that is not a string", function() {
		beforeEach(function() {
			this.validRequest.compile.rootResourcePath = [];
			return this.RequestParser.parse((this.validRequest), this.callback);
		});

		return it("should return an error", function() {
			return this.callback.calledWith("rootResourcePath attribute should be a string")
				.should.equal(true);
		});
	});

	describe("with a root resource path that needs escaping", function() {
		beforeEach(function() {
			this.badPath = "`rm -rf foo`.tex";
			this.goodPath = "rm -rf foo.tex";
			this.validRequest.compile.rootResourcePath = this.badPath;
			this.validRequest.compile.resources.push({
				path: this.badPath,
				date: "12:00 01/02/03",
				content: "Hello world"
			});
			this.RequestParser.parse(this.validRequest, this.callback);
			return this.data = this.callback.args[0][1];});

		it("should return the escaped resource", function() {
			return this.data.rootResourcePath.should.equal(this.goodPath);
		});

		return it("should also escape the resource path", function() {
			return this.data.resources[0].path.should.equal(this.goodPath);
		});
	});

	describe("with a root resource path that has a relative path", function() {
		beforeEach(function() {
			this.validRequest.compile.rootResourcePath = "foo/../../bar.tex";
			this.RequestParser.parse(this.validRequest, this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return an error", function() {
			return this.callback.calledWith("relative path in root resource")
				.should.equal(true);
		});
	});

	describe("with a root resource path that has unescaped + relative path", function() {
		beforeEach(function() {
			this.validRequest.compile.rootResourcePath = "foo/#../bar.tex";
			this.RequestParser.parse(this.validRequest, this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return an error", function() {
			return this.callback.calledWith("relative path in root resource")
				.should.equal(true);
		});
	});

	return describe("with an unknown syncType", function() {
		beforeEach(function() {
			this.validRequest.compile.options.syncType = "unexpected";
			this.RequestParser.parse(this.validRequest, this.callback);
			return this.data = this.callback.args[0][1];});

		return it("should return an error", function() {
			return this.callback.calledWith("syncType attribute should be one of: full, incremental")
				.should.equal(true);
		});
	});
});