extends MarginContainer

onready var peers_grid = $v/body/peers/p/peers
onready var lobby_name = $v/head/lobby_info
onready var peers_list_label = $v/body/peers/label
onready var chat = $v/body/v/messages
onready var chat_edit = $v/body/v/h/chat
onready var auto_scroll_chk = $v/body/v/chat_head/auto_scroll
onready var max_players = $v/head/max_players
onready var ready_up = $v/head/ready_up
onready var lock = $v/head/lock
onready var start = $v/head/start

onready var peer = preload("res://objects/peer.tscn")
onready var peers = {}
onready var is_host = false

func _ready():
	Global.client.signaller.connect("peer_joined", self, "_peer_joined")
	Global.client.signaller.connect("peer_left", self, "_peer_left")
	Global.client.signaller.connect("lobby_left", self, "_lobby_left")
	Global.client.signaller.connect("lobby_new", self, "_lobby_update")

	Global.client.signaller.connect("websocket_disconnected", self, "_signaller_disconnected")

	lobby_name.text = "%s" % Global.client.signaller.lobby_name

	Global.client.signaller.call_deferred("request_peer_list")
	call_deferred("add_chat", "# Connected to %s" % Global.client.signaller.lobby_name)

	# hide/show controls depending on whether or not we're the host
	var is_host = Global.client.signaller.peer_id == 1
	if is_host:
		ready_up.queue_free()
	else:
		lobby_name.editable = false
		max_players.editable = false
		start.queue_free()
		lock.queue_free()
	
func _lobby_update(l):
	for u in l:
		if !is_host:
			max_players.text = str(u.maxPlayers)
			lobby_name.text = u.name
		print(l)
		break

func _peer_joined(joined_peers):
	call_deferred("update_player_count")
	if Global.client.signaller.is_host(): call_deferred("update_can_start")
	for peer_index in range(len(joined_peers)):
		var peer_data = joined_peers[peer_index]
		var id = peer_data["id"]
		if peers.has(id):
			_update_peer(id, peer_data)
		else:
			_add_peer(id, peer_data)
			
func _add_peer(id, peer_data):
	call_deferred("update_player_count")

	var new_peer = peer.instance()
	new_peer.set_with_dict(peer_data)
	peers_grid.add_child(new_peer)
	peers[id] = new_peer
	add_chat("> %s joined the lobby" % new_peer.display_name)

func _update_peer(id, peer_data):
	if peer_data.ready != peers[id].ready: add_chat("! %s is %s" % [peers[id].display_name, "now ready" if peer_data.ready else "no longer ready"])
	peers[id].set_with_dict(peer_data)
	# TODO: announce changes in chat?

func _peer_left(ids: Array):
	call_deferred("update_player_count")
	for data in ids:
		var id = data["id"]
		if peers.has(id):
			call_deferred("add_chat", "< %s left the lobby" % peers[id].display_name)
			peers[id].queue_free()
			peers.erase(id)
	
remotesync func add_chat(message):
	if auto_scroll_chk.pressed: call_deferred("scroll_chat_to_bottom")
	else:
		call_deferred("preserve_chat_scroll", chat.cursor_get_line(), chat.get_selection_to_line(), chat.get_selection_from_line(), chat.get_selection_to_column(), chat.get_selection_from_column())
	chat.text += "\n" + message

func scroll_chat_to_bottom():
	chat.cursor_set_line(chat.get_line_count() + 1)
	chat.scroll_vertical = 1000000000

func preserve_chat_scroll(n, tl, fl, tc, fc):
	chat.cursor_set_line(n)
	chat.select(fl, fc, tl, tc)
	chat.center_viewport_to_cursor()

func send_chat_message():
	var message = chat_edit.text
	if message != "":
		rpc("add_chat", "%s: %s" % [Global.client.signaller.display_name, message])
		chat_edit.text = ""

func update_can_start():
	var can_start = true
	for p in peers:
		var peer = peers[p]
		if !peer.ready:
			can_start = false
			break
	print(can_start)
	if can_start: add_chat("! All players ready - game may now be started")
	start.disabled = !can_start

func _lobby_left(_id): Global.lobby_browser()
func _on_leave_button_pressed(): Global.lobby_browser()
func _on_TextEdit_text_entered(_new_text): send_chat_message()
func update_player_count(): peers_list_label.text = "Players: %d" % peers.size()
func _on_Button_pressed(): send_chat_message()
func _on_ready_up_toggled(button_pressed: bool): Global.client.signaller.set_ready(button_pressed)
func _on_lobby_info_text_changed(new_text: String): Global.client.signaller.set_lobby_name(new_text)
func _signaller_disconnected(): Global.main_menu()