maquette = require "maquette"
nmd = require "nano-markdown"

{create-projector, h} = maquette

projector = create-projector!

bulma = require "./bulma.ls"

get-previous = (collection, element) ->
	var previous

	for item in collection
		if item == element
			return previous

		previous = item

get-next = (collection, element) ->
	var found-element

	for item in collection
		if found-element
			return item

		if item == element
			found-element := true

Task = (self, project) ->
	self.render = ->
		author = model.users[self.author]
		if typeof(author) != "object" and author != "request sent"
			model.users[self.author] = "request sent"
			# FIXME: This should go directly to authd.
			socket.send JSON.stringify {
				type: "get-user"
				uid: self.author
			}

		assigned_to = model.users[self.assigned_to]
		if assigned_to and typeof(assigned_to) != "object" and assigned_to != "request sent"
			model.users[self.assigned_to] = "request sent"
			# FIXME: This should go directly to authd.
			socket.send JSON.stringify {
				type: "get-user"
				uid: self.assigned_to
			}

		is-selected = model.selected == self.id

		h \div.card {
			key: self.id
			classes: {
				"is-selected": is-selected
			}
			onclick: ->
				model.selected := self.id
		} [
			h \div.card-content [
				h \div.media [
					h \div.media-left [
						h \img.image.is-48x48.avatar {
							alt: "user image"
							src: if typeof(assigned_to) == "object"
								assigned_to.avatar
							else
								"https://bulma.io/images/placeholders/96x96.png"
						}
					]
					h \div.media-content [
						if model.editing == self.id + ".title"
							h \input.input {
								value: self.title
								onchange: (e) ->
									model.editing := undefined
									socket.send JSON.stringify {
										type: "edit-task"
										project: project.id
										task: self.id
										title: e.target.value
									}
							} [ self.title ]
						else
							bulma.title 4 self.title

						if typeof(model.users[self.assigned_to]) == "object"
							user = model.users[self.assigned_to]

							h \div.subtitle.is-6 [
								"@" + (user.full_name || user.login)
							]
					]
					if is-selected
						h \div.media-right {key: "edit"} [
							h \span.small {
								onclick: ->
									if model.editing == self.id + ".title"
										model.editing := undefined
									else
										model.editing := self.id + ".title"
							} [
								"Edit"
							]
						]

					if is-selected
						h \div.media-right {key: "delete"} [
							h \span.small {
								onclick: ->
									model.editing := self.id + ".delete"
							} [
								"Delete"
							]
						]
				]

				if is-selected
					h \div.content {
						after-create: (dom) ->
							dom.innerHTML = nmd self.description
					} [
						if model.editing == self.id + ".description"
							h \form.form [
								h \textarea.textarea {
									value: self.description
									oninput: (e) ->
										model.editing-data := e.target.value
								}
								h \div.button.is-fullwidth {
									onclick: ->
										socket.send JSON.stringify {
											type: "edit-task"
											project: project.id
											task: self.id
											description: model.editing-data
										}
										model.editing-data := undefined
										model.editing := undefined
								} [ "Update" ]
							]
					]

				if is-selected
					h \span.button.is-small {
						onclick: ->
							model.editing := self.id + ".description"
					} [
						"edit"
					]
			]

			if is-selected
				h \div.card-footer {key: "assign"} [
					if model.editing == self.id + ".assigned_to"
						h \div.card-footer-item {
							key: "assign.clicked"
						} [
							h \input.input {
								onchange: (e) ->
									model.editing := undefined
									socket.send JSON.stringify {
										type: "edit-task"
										project: project.id
										task: self.id
										assigned_to: Number e.target.value
									}
							}
						]
					else
						h \div.card-footer-item {
							key: "assign"
							onclick: ->
								model.editing := self.id + ".assigned_to"
						} [ "Assign" ]
				]

			if is-selected
				h \div.card-footer {key: "move"} [
					h \div.card-footer-item {
						key: "⇐"
						onclick: ->
							socket.send JSON.stringify {
								type: "edit-task"
								project: project.id
								task: self.id
								column: get-previous project.columns.map((.id)), self.column
							}
					} [ "⇐" ]

					if model.editing == self.id + ".delete"
						h \div.card-footer-item {
							key: "delete"
						} [
							h \div.button.is-danger {
								onclick: ->
									socket.send JSON.stringify {
										type: "delete-task"
										project: project.id
										task: self.id
									}
							} [ "Delete! For real!" ]
						]

					h \div.card-footer-item {
						key: "⇒"
						onclick: ->
							socket.send JSON.stringify {
								type: "edit-task"
								project: project.id
								task: self.id
								column: get-next project.columns.map((.id)), self.column
							}
					} [ "⇒" ]
				]
		]

	self

Project = (self) ->
	self.tasks = self.tasks.map (e) -> Task e, self

	self.render-column = (column) ->
		h \div.column.is-2 {
			key: column.id
		} [
			h \div.card.is-column-header {
				key: column.id
			} [
				h \div.card-header [
					if model.editing == column.id + ".title"
						h \input.input {
							type: "text",
							value: column.name
							onchange: (e) ->
								console.log "onchange??"
								model.editing := undefined

								socket.send JSON.stringify {
									type: "edit-column"
									project: self.id
									column: column.id
									name: e.target.value
								}
						}
					else
						h \div.card-header-title [
							bulma.title 3 column.name
						]

					h \div.card-header-icon {
						key: "edit"
						onclick: ->
							if model.editing == column.id + ".title"
								model.editing := undefined
							else
								model.editing := column.id + ".title"
					} [
						"Edit"
					]

					if self.tasks.filter((.column == column.id)).length == 0
						h \div.card-header-icon {
							key: "delete"
							onclick: ->
								model.editing := column.id + ".delete"
						} [
							"Delete"
						]
				]
				if model.editing == column.id + ".delete"
					h \div.card-content [
						h \div.button.is-fullwidth.is-danger {
							onclick: ->
								socket.send JSON.stringify {
									type: "delete-column"
									project: self.id
									column: column.id
								}
						} [ "Delete me!"]
					]
			]

			for task in self.tasks
				continue if task.column != column.id

				task.render!

			h \div.button.is-fullwidth {
				onclick: ->
					socket.send JSON.stringify {
						type: "new-task"
						project: self.id
						column: column.id
						title: "General Kenobi…"
						description: ""
					}
			} [ "New task" ]
		]

	self.render = ->
		h \div.project {
			key: self.id
		} [
			h \div.hero.is-dark { key: "title" } [
				h \div.hero-body [
					# FIXME: Consider using a .level for this.
					h \div.is-pulled-right {
						onclick: ->
							model.editing := self.id + ".name"
					} [
						"Edit"
					]

					if model.editing == self.id + ".name"
						h \input.input {
							onchange: (e) ->
								model.editing := undefined
								socket.send JSON.stringify {
									type: "edit-project"
									project: self.id
									name: e.target.value
								}
							value: self.name
						}
					else
						h \div.title [ self.name ]
				]
			]

			h \div.columns [
				for dom in self.columns.map((column) -> self.render-column(column))
					dom

				h \div.column.is-2 {
					key: "new-column"
				} [
					h \div.button.is-fullwidth {
						onclick: ->
							socket.send JSON.stringify {
								type: "new-column"
								project: self.id
								name: "Hello, there!"
							}
					} [ "New Column" ]
				]
			]
		]

	self

model = {
	current-view: "login"
	editing: undefined
	selected: undefined
	users: {}
	projects: {}
	projects-list: []
}

socket = new WebSocket "ws://localhost:8888/socket"

socket.onopen = (event) ->
	# Nothing to do here ATM.

socket.onerror = (event) ->
	model.state = "websocket-error"
	projector.schedule-render!

socket.onclase = (event) ->
	model.state = "websocket-error"
	model.websocket-error = event.reason
	projector.schedule-render!

socket.onmessage = (event) ->
	console.log event.data

	message = JSON.parse event.data

	switch message.type
	when "login"
		model.current-view := "projects-list"
	when "list-projects"
		for project in message.projects
			model.projects[project.id] = Project project
		model.projects-list := message.projects
	when "project"
		model.projects[message.project.id] = Project message.project
	when "user"
		model.users[message.user.uid] := message.user
	else
		console.log "RECEIVED UNKNOWN MESSAGE TYPE: #{message.type}"

	projector.schedule-render!

	console.log message

renderer = ->
	h \div.section [
		switch model.current-view
		when "login"
			h \div.container [
				h \div.box [
					h \form [
						bulma.field [
							bulma.label "Login"
							bulma.input {
								oninput: (e) ->
									model.login = e.target.value
								name: \login
								id: \login-input
							}
						]
						bulma.field [
							bulma.label "Password"
							bulma.input {
								oninput: (e) ->
									model.password = e.target.value
								name: \password
								type: \password
								id: \password-input
							}
						]

						h \button.button.is-fullwidth.is-primary {
							onclick: (e) ->
								e.prevent-default!

								socket.send JSON.stringify {
									type: "login",
									login: model.login
									password: model.password
								}
						} [ "Letsu go!" ]
					]
				]
			]
		when "project"
			h \div [
				h \div.navbar [
					h \div.navbar-end [
						h \a.navbar-item {
							onclick: ->
								model.viewed-project := undefined
								model.current-view := "projects-list"
						} [ "Go back" ]
					]
				]

				if model.projects[model.viewed-project]
					model.projects[model.viewed-project].render!
			]
		when "projects-list"
			h \div#projects-list [
				for project in (model.projects-list || [])
					h \div.box {
						key: project.id
						onclick: ->
							model.current-view := "project"
							model.viewed-project := project.id
							socket.send JSON.stringify {
								type: "project",
								project: project.id
							}
					} [
						bulma.title 3 project.name
					]

				h \div.button.is-primary.is-large.is-fullwidth {
					onclick: ->
						socket.send JSON.stringify {
							type: "new-project"
							name: "Hello, there!"
						}
				} [ "New project! (random atm)" ]
			]
		else
			h \div.notification.is-error [
				"Wait, what? Internal error!"
			]
	]

document.add-event-listener 'DOMContentLoaded' ->
	projector.append document.body, renderer