h     = require 'maquette' .h
Modal = require './modal.ls'
UUID  = require "uuid/v4"
bulma = require "./bulma.ls"

{field, control, label, button, tag, input, select} = bulma

col-to-lines = (column, self) ->
	field \.has-addons {
		key: "column.#{column.id}"
	} [
		control \.is-expanded [
			input {
				key:     "input" + column.id
				value:     column.title
				oninput: (e) ->
					self.extra_properties.columns.find((.id == column.id)).title := e.target.value
			}
		]

		control [
			button \.is-danger.is-outlined {
				key: "button" + column.id
				onclick: ->
					self.extra_properties.columns := self.extra_properties.columns.filter((.id != column.id))
			} [ "DELETE" ]
		]
	]

user-form-selection = (self, user) ->
	h \option {
		value: user.uid
	} [ user.login ]

permission-groups =
	"read"
	"post"
	"edit"
	"admin"

permissions-add = (self, permission, user-id) ->
	perm-list = self.permissions[permission]
	if perm-list
		is-already-there = perm-list.find (e) -> (""+ e) == ("" + user-id)
		if is-already-there
			console.log "user #{user-id} already in #{perm-list}"
		else
			perm-list ++= [ parseInt(user-id) ]
			self.permissions[permission] := perm-list
			# console.log "adding user #{user-id} to #{perm-list[0]}: #{perm-list}"
	else
		console.log "Cannot find #{permission} permissions, creating it"
		self.permissions[permission] := user-id

permission-to-form-selection = (self, permission) ->
	h \option {
		value: permission
	} [ permission ]

ProjectCreationModal = (project, todod-ws, users) ->

	# work on a copy of the columns
	# in case of cancelled modifications, only the copies are changed
	columns-copy = []
	for col in  project.extra_properties.columns
		new-col = {}
		for k,v of col
			new-col[k] = v
		columns-copy ++= [ new-col ]

	self = {
		title: project.title || ""
		permissions: project.permissions || {admin: [], edit: [], post: [], read: []}

		tmp:
			new-user-permission:
				id: void
				permission: permission-groups[0]
			new-column-input:
				title: "New column !"
			users: users || []

		extra_properties:
			columns: columns-copy
	}

	modal = Modal {
		+visible
		content-render: (self) ->
			h \div.form [

				field [
					label "Project title"

					input {
						value: self.title
						oninput: (e) ->
							self.title := e.target.value
					}
				]

				# h \hr []

				# bulma.field [
				# 	bulma.label "Adding a user"
				# 	bulma.input {
				# 		value: self.new-user
				# 		oninput: (e) ->
				# 			self.new-user := e.target.value
				# 		name: \new-user
				# 		id: \user-add
				# 	}
				# ]

				h \hr []

				field [
					label "Permissions"

					h \table.table.is-fullwidth.is-striped [
						h \tbody [
							for permission, uids of self.permissions
								for uid in uids
									h \tr {key: uid.to-string!} [
										h \td [
											uid.to-string!
										]

										h \td.is-narrow [
											permission
										]
									]
						]
					]
				]

				h \hr []

				# FIXME: This is supposed to go in a .field, right?
				label "Adding new user"

				field \.has-addons { key: \new-user } [
					control [
						select {
							onchange: (e) ->
								self.tmp.new-user-permission.permission := e.target.value
						} permission-groups.map (permission) -> permission-to-form-selection self, permission
					]

					control \.is-expanded [
						select \.is-fullwidth {
							onchange: (e) ->
								self.tmp.new-user-permission.uid := e.target.value
						} [
							user-form-selection self, { login: "Choose a user", uid: "-" }
							for user-id, user of self.tmp.users
								user-form-selection self, user
						]
					]

					control [
						button \.is-success.is-outlined {
							onclick: ->
								if self.tmp.new-user-permission.uid == void || self.tmp.new-user-permission.uid == "-"
									console.log "adding an user permission on the kanban: failed, no user selected"
								else
									# TODO:
										# adding the permissions in self.permissions
										# then editing the project in the db via todod-ws
									permissions-add self, self.tmp.new-user-permission.permission, self.tmp.new-user-permission.uid
						} [ "+" ]
					]
				]

				h \hr []

				label [ "Columns" ]

				for dom in (self.extra_properties.columns.map (column) -> col-to-lines column, self)
					dom

				h \hr []

				field \.has-addons { key: \new-column } [
					control \.is-expanded [
						input {
							value:     self.tmp.new-column-input.title
							oninput: (e) ->
								self.tmp.new-column-input.title := e.target.value
						}
					]

					control [
						button \.is-success.is-outlined {
							onclick: ->
								new-col = {
									id: UUID!
									title: self.tmp.new-column-input.title
								}
								self.extra_properties.columns ++= [ new-col ]
								self.tmp.new-column-input.title := "New column !"
						} [ "+" ]
					]
				]
			]

		on-validation: ->
			tmp = delete self.tmp
			if project.id
				todod-ws.edit-list project.id, self
			else
				todod-ws.add-list self.title, self
			self.tmp := tmp
	}, self

	self.render = ->
		modal.render!

	self

module.exports = ProjectCreationModal