/* eslint-env node */
module.exports = function(grunt) {
	"use strict"

	var _ = require("lodash")
	var version = "0.4.0"

	var inputFolder = "./docs"
	var tempFolder = "./temp"
	var archiveFolder = "./archive"
	var outputFolder = "../mithril"

	var guide = [
		"auto-redrawing",
		"benchmarks",
		"community",
		"optimizing-performance",
		"comparison",
		"components",
		"getting-started",
		"installation",
		"integration",
		"practices",
		"refactoring",
		"routing",
		"tools",
		"web-services"
	]
	var api = [
		"change-log",
		"roadmap",
		"how-to-read-signatures",
		"mithril",
		"mithril.computation",
		"mithril.deferred",
		"mithril.mount",
		"mithril.component",
		"mithril.prop",
		"mithril.redraw",
		"mithril.render",
		"mithril.deps",
		"mithril.request",
		"mithril.route",
		"mithril.sync",
		"mithril.trust",
		"mithril.withAttr",
		"mithril.xhr"
	]

	var md2htmlTasks = {}
	var makeTasks = function(layout, pages) {
		pages.map(function(name) {
			var src = inputFolder + "/" + name + ".md"
			var title
			if (grunt.file.exist(src)) {
				title = grunt.file.read(src)
					.split(/\n/)[0]
					.substring(3) + " - "
			} else {
				title = ""
			}
			md2htmlTasks[name] = {
				options: {
					layout: inputFolder + "/layout/" + layout + ".html",
					templateData: { "topic": title }
				},
				files: [{src: [src], dest: tempFolder + "/" + name + ".html"}]
			}
		})
	}
	makeTasks("guide", guide)
	makeTasks("api", api)

	var sauceBrowsers = [
		{ browserName: "firefox", version: "19", platform: "XP" },
		{ browserName: "internet explorer", platform: "XP", version: "6"},
		{ browserName: "safari", platform: "OS X 10.9", version: "7"},
		{ browserName: "iPad", platform: "OS X 10.9", version: "7.1"},
		{ browserName: "opera", platform: "Linux", version: "12"},
		{ browserName: "chrome", platform: "XP", version: "26"},
		{ browserName: "chrome", platform: "Windows 8", version: "26"}
	]

	var sauceOnTestComplete = function(result, callback) {
		var request = require("request")

		var user = process.env.SAUCE_USERNAME
		var pass = process.env.SAUCE_ACCESS_KEY

		request.put({
			url: [
				"https://saucelabs.com/rest/v1",
				user,
				"jobs",
				result.job_id
			].join("/"),
			auth: { user: user, pass: pass },
			json: { passed: result.passed }
		}, function (error, response) {
			if (error) {
				callback(error)
			} else if (response.statusCode !== 200) {
				callback(new Error("Unexpected response status: "
					+ response.statusCode + "\n "))
			} else {
				callback(null, result.passed)
			}
		})
	}

	var sauceBaseOptions = {
		username: process.env.SAUCE_USERNAME,
		key: process.env.SAUCE_ACCESS_KEY,
		testname: "Mithril Tests " + new Date().toJSON(),
		browsers: sauceBrowsers,
		sauceConfig: {
			"record-video": false,
			"record-screenshots": false
		},
		build: process.env.TRAVIS_JOB_ID,
		onTestComplete: sauceOnTestComplete,
		tunnelTimeout: 5
	}
	var sauceCustomOptions = {
		testname: "Mithril Custom Tests " + new Date().toJSON(),
		urls: ["http://127.0.0.1:8000/tests/index.html"]
	}
	_.assign(sauceCustomOptions, sauceBaseOptions)
	var sauceQunitOptions = {
		testname: "qUnit Tests " + new Date().toJSON(),
		urls: ["http://127.0.0.1:8000/tests/e2e/test.html"]
	}
	_.assign(sauceQunitOptions, sauceBaseOptions)

	var currentVersionArchiveFolder = archiveFolder + "/v" + version
	grunt.initConfig({
		md2html: md2htmlTasks,
		uglify: {
			options: {
				banner: [[
					"/*",
					"Mithril v" + version,
					"http://github.com/lhorie/mithril.js",
					"(c) Leo Horie",
					"License: MIT",
					"*/"
				].join("\n")],
				sourceMap: true
			},
			mithril: {src: "mithril.js", dest: "mithril.min.js"}
		},
		concat: {
			test: {
				src: [
					"mithril.js",
					"./tests/test.js",
					"./tests/mock.js",
					"./tests/mithril-tests.js"
				],
				dest: currentVersionArchiveFolder + "/mithril-tests.js"
			}
		},
		zip: {
			distribution: {
				cwd: currentVersionArchiveFolder + "/",
				src: [
					currentVersionArchiveFolder + "/mithril.min.js",
					currentVersionArchiveFolder + "/mithril.min.js.map",
					currentVersionArchiveFolder + "/mithril.js"
				],
				dest: currentVersionArchiveFolder + "/mithril.min.zip"
			}
		},
		replace: {
			options: {
				force: true,
				patterns: [
					{match: /\.md/g, replacement: ".html"},
					{match: /\$version/g, replacement: version}
				]
			},
			links: {
				expand: true,
				flatten: true,
				src: [tempFolder + "/**/*.html"],
				dest: currentVersionArchiveFolder + "/"
			},
			index: {
				src: inputFolder + "/layout/index.html",
				dest: currentVersionArchiveFolder + "/index.html"
			},
			commonjs: {
				expand: true,
				flatten: true,
				src: [inputFolder + "/layout/*.json"],
				dest: currentVersionArchiveFolder
			},
			cdnjs: {
				src: "deploy/cdnjs-package.json",
				dest: "../cdnjs/ajax/libs/mithril/package.json"
			}
		},
		copy: {
			style: {
				src: inputFolder + "/layout/style.css",
				dest: currentVersionArchiveFolder + "/style.css"
			},
			pages: {
				src: inputFolder + "/layout/pages.json",
				dest: currentVersionArchiveFolder + "/pages.json"
			},
			lib: {
				expand: true,
				cwd: inputFolder + "/layout/lib/",
				src: "./**",
				dest: currentVersionArchiveFolder + "/lib/"
			},
			tools: {
				expand: true,
				cwd: inputFolder + "/layout/tools/",
				src: "./**",
				dest: currentVersionArchiveFolder + "/tools/"
			},
			comparisons: {
				expand: true,
				cwd: inputFolder + "/layout/comparisons/",
				src: "./**",
				dest: currentVersionArchiveFolder + "/comparisons/"
			},
			unminified: {
				src: "mithril.js",
				dest: currentVersionArchiveFolder + "/mithril.js"
			},
			minified: {
				src: "mithril.min.js",
				dest: currentVersionArchiveFolder + "/mithril.min.js"
			},
			readme: {
				src: "README.md",
				dest: currentVersionArchiveFolder + "/README.md"
			},
			map: {
				src: "mithril.min.js.map",
				dest: currentVersionArchiveFolder + "/mithril.min.js.map"
			},
			typescript: {
				src: "mithril.d.ts",
				dest: currentVersionArchiveFolder + "/mithril.d.ts"
			},
			publish: {
				expand: true,
				cwd: currentVersionArchiveFolder,
				src: "./**",
				dest: outputFolder
			},
			archive: {
				expand: true,
				cwd: currentVersionArchiveFolder,
				src: "./**",
				dest: outputFolder + "/archive/v" + version
			}
		},
		execute: {
			tests: {src: [currentVersionArchiveFolder + "/mithril-tests.js"]}
		},
		qunit: {
			all: ["tests/e2e/**/*.html"]
		},
		"saucelabs-custom": {
			all: {
				options: sauceCustomOptions
			}
		},
		"saucelabs-qunit": {
			all: {
				options: sauceQunitOptions
			}
		},
		watch: {},

		connect: {
			server: {
				options: {
					port: 8888,
					base: "."
				}
			}
		},
		clean: {
			options: {force: true},
			generated: [tempFolder]
		},
		jsfmt: {
			default: {
				files: [{
					expand: true,
					src: ["mithril.js"],
					cwd: ".",
					dest: "."
				}]
			}
		},
		eslint: {
			target: [
				"**/*.js",
				"!node_modules/**",
				"!**/*.min.js",
				"!docs/layout/lib/**/*.js"
			]
		}
	})

	grunt.loadNpmTasks("grunt-contrib-clean")
	grunt.loadNpmTasks("grunt-contrib-concat")
	grunt.loadNpmTasks("grunt-contrib-copy")
	grunt.loadNpmTasks("grunt-contrib-uglify")
	grunt.loadNpmTasks("grunt-execute")
	grunt.loadNpmTasks("grunt-md2html")
	grunt.loadNpmTasks("grunt-replace")
	grunt.loadNpmTasks("grunt-zip")
	grunt.loadNpmTasks("grunt-contrib-qunit")
	grunt.loadNpmTasks("grunt-contrib-connect")
	grunt.loadNpmTasks("grunt-saucelabs")
	grunt.loadNpmTasks("grunt-jsfmt")
	grunt.loadNpmTasks("grunt-eslint")

	grunt.registerTask("build", [
		"test", "uglify", "zip", "md2html", "replace", "copy", "clean"])
	grunt.registerTask("testall", ["test", "teste2e"])
	grunt.registerTask("test", ["eslint", "concat", "execute"])
	grunt.registerTask("teste2e", ["connect", "qunit"])
	grunt.registerTask("default", ["build"])

	grunt.registerTask("sauce-qunit", ["connect", "saucelabs-qunit"])
	grunt.registerTask("sauce-custom", ["connect", "saucelabs-custom"])
	grunt.registerTask("sauce-all", [
		"connect", "saucelabs-qunit", "saucelabs-custom"])
}