## freeftf
## Copyright (C) 2024  Patrick_Pluto
##
## This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
##
## This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.

extends Node

const DEFAULT_SERVER_IP = "127.0.0.1"
const PORT = 36969
const MAX_CONNECTIONS = 16

var players = {}
var players_numbered = []
var label
var map
var character = preload("res://objects/player.tscn")
var is_server = false
var first_joined = true
var game_master = "debug"
var map_name = "mansion"
var offline

func _ready():
	offline = multiplayer.multiplayer_peer
	multiplayer.peer_disconnected.connect(_on_player_disconnected)
	multiplayer.server_disconnected.connect(_on_server_disconnected)

func _on_player_disconnected(id):
	players.erase(id)
	if (players.is_empty() or id == game_master) and multiplayer.is_server():
		get_tree().quit()
	var x = 0
	if !multiplayer.is_server():
		for i in players_numbered:
			if i == id:
				var current_character = get_tree().root.get_node("./"+map_name+"/player"+str(x))
				if current_character.hp == 0:
					Game.dead -= 1
				elif current_character.is_frozen:
					Game.frozen -= 1
				elif current_character.beast:
					Game.player_escaped = true
					Game.players = 0
				else:
					Game.players -= 1
				current_character.free()
			x += 1

func _on_server_disconnected():
	Server.reset()
	Game.reset()
	get_tree().change_scene_to_file("res://menus/main_menu.tscn")

func reset():
	players = {}
	players_numbered = []
	label = null
	map = null
	is_server = false
	first_joined = true
	game_master = "debug"
	character = preload("res://objects/player.tscn")
	if multiplayer != null:
		multiplayer.multiplayer_peer = offline

func join_game(ip):
	var peer = ENetMultiplayerPeer.new()
	var error = peer.create_client(ip, PORT)
	if error:
		return error
	multiplayer.multiplayer_peer = peer


func create_game():
	var peer = ENetMultiplayerPeer.new()
	var error = peer.create_server(PORT, MAX_CONNECTIONS)
	if error:
		return error
	multiplayer.multiplayer_peer = peer

func _process(delta):
	if multiplayer.is_server():
		make_host.rpc(game_master)
		
		

@rpc("authority","call_remote","reliable")
func make_host(id):
	first_joined = false
	game_master = id
	if str(multiplayer.get_unique_id()) == str(game_master):
		is_server = true
	else:
		is_server = false
	
@rpc("any_peer", "call_remote", "reliable")
func sync_playerlist(text, host):
	if !multiplayer.is_server() and (multiplayer.get_remote_sender_id() == game_master or multiplayer.get_remote_sender_id() == 0):
		get_tree().root.get_node("create/player_list/list").text = text

@rpc("any_peer", "call_local", "reliable")
func send_playerinfo(player_name, id):
	if !multiplayer.is_server():
		if is_server:
			var done = 0
			players[id] = player_name
			label = get_tree().root.get_node("create/player_list/list")
			label.text = ""
			for w in players:
				if done == 1:
					label.text = str(label.text +"\n" + players[w])
				else:
					label.text = players[w]
					done = 1
	else:
		players[id] = player_name
		if first_joined:
			first_joined = false
			game_master = id
			is_server = true
			
			
@rpc("any_peer", "call_local", "reliable")
func start_game(server_players):
	if !multiplayer.is_server() and (multiplayer.get_remote_sender_id() == game_master or multiplayer.get_remote_sender_id() == 0):
		players = server_players
		players_numbered = players.keys()
		var success = get_tree().change_scene_to_file("res://maps/"+map_name+".tscn")
		while !get_tree().root.has_node("./"+map_name+"/"):
			await get_tree().create_timer(0.001).timeout
		map = get_tree().root.get_node("./"+map_name+"/")
		var i = 0
		for w in players:
			var player = character.instantiate()
			player.name = "player" + str(i)
			i += 1
			player.position.z = -i*2.5
			player.position.y = 1
			map.add_child(player)
		if Server.is_server:
			var random = randi() % Server.players.size()
			sync_beast.rpc(random)
		Game.apply_settings()
		
@rpc("any_peer", "call_remote", "unreliable")
func sync_player(node_name, position, rotation):
	if !multiplayer.is_server():
		var current_character = get_tree().root.get_node("./"+map_name+"/"+node_name)
		current_character.position = position
		current_character.rotation = rotation
		
@rpc("any_peer", "call_remote", "unreliable")
func sync_hammer(node_name, rotation):
	if !multiplayer.is_server():
		var current_character = get_tree().root.get_node("./"+map_name+"/"+node_name+"/hammer")
		current_character.rotation = rotation

@rpc("any_peer", "call_local", "reliable")
func sync_computers(node_name, current):
	if !multiplayer.is_server() and (multiplayer.get_remote_sender_id() == game_master or multiplayer.get_remote_sender_id() == 0):
		var current_character = get_tree().root.get_node("./"+map_name+"/computers/"+node_name)
		current_character.current = current

@rpc("any_peer", "call_local", "reliable")
func sync_beast(player):
	if !multiplayer.is_server() and (multiplayer.get_remote_sender_id() == game_master or multiplayer.get_remote_sender_id() == 0):
		while !get_tree().root.has_node("./"+map_name+"/player"+str(player)):
			await get_tree().create_timer(0.001).timeout
		var current_character = get_tree().root.get_node("./"+map_name+"/player"+str(player))
		current_character.beast_init()
	
@rpc("any_peer", "call_local", "reliable")
func player_hit(target, beast):
	if !multiplayer.is_server():
		target = get_tree().root.get_node("./"+map_name+"/"+target)
		beast = get_tree().root.get_node("./"+map_name+"/"+beast)
		if !target.is_frozen:
			target.captured(beast)
			beast.got_one(target)