/* global m */
(function (app) {
	"use strict"

	app.controller = function () {
		/* eslint-disable no-warning-comments */
		// Todo collection, update with props
		/* eslint-enable no-warning-comments */
		this.list = app.storage.get().map(function (item) {
			return new app.Todo(item)
		})

		// Temp title placeholder
		this.title = m.prop("")

		/* eslint-disable no-warning-comments */
		// Todo list filter
		/* eslint-enable no-warning-comments */
		this.filter = m.prop(m.route.param("filter") || "")

		this.add = function () {
			var title = this.title().trim()
			if (title) {
				this.list.push(new app.Todo({title: title}))
				app.storage.put(this.list)
			}
			this.title("")
		}

		this.isVisible = function (todo) {
			switch (this.filter()) {
			case "active": return !todo.completed()
			case "completed": return todo.completed()
			default: return true
			}
		}

		this.complete = function (todo) {
			if (todo.completed()) {
				todo.completed(false)
			} else {
				todo.completed(true)
			}
			app.storage.put(this.list)
		}

		this.edit = function (todo) {
			todo.previousTitle = todo.title()
			todo.editing(true)
		}

		this.doneEditing = function (todo, index) {
			todo.editing(false)
			todo.title(todo.title().trim())
			if (!todo.title()) {
				this.list.splice(index, 1)
			}
			app.storage.put(this.list)
		}

		this.cancelEditing = function (todo) {
			todo.title(todo.previousTitle)
			todo.editing(false)
		}

		this.clearTitle = function () {
			this.title("")
		}

		this.remove = function (key) {
			this.list.splice(key, 1)
			app.storage.put(this.list)
		}

		this.clearCompleted = function () {
			for (var i = this.list.length - 1; i >= 0; i--) {
				if (this.list[i].completed()) {
					this.list.splice(i, 1)
				}
			}
			app.storage.put(this.list)
		}

		this.amountCompleted = function () {
			var amount = 0
			for (var i = 0; i < this.list.length; i++) {
				if (this.list[i].completed()) {
					amount++
				}
			}
			return amount
		}

		this.allCompleted = function () {
			for (var i = 0; i < this.list.length; i++) {
				if (!this.list[i].completed()) {
					return false
				}
			}
			return true
		}

		this.completeAll = function () {
			var allCompleted = this.allCompleted()
			for (var i = 0; i < this.list.length; i++) {
				this.list[i].completed(!allCompleted)
			}
			app.storage.put(this.list)
		}
	}
})(this.app || (this.app = {}))