class_name BoardGame extends Node

signal all_players_ready_for_day_start

const HOME_SCENE = preload("uid://bto4vblqk2inb")
const HQ_SCENE = preload("uid://wdgig5aclnpx")
#const DOWN_SPAWN_SCENE = preload("uid://d4ltd1geg7s2p")

const BANK_SCENE = preload("uid://c06fsqdixer1c")
const BAR_SCENE = preload("uid://cfk268flnsbhb")
const CAFE_SCENE = preload("uid://bgtw051fiveeo")
const FORK_SCENE = preload("uid://cphy0vtj14ob0")
const GUN_SHOP_SCENE = preload("uid://c1kyedmrep0tu")
const HOSPITAL_SCENE = preload("uid://bytldu3y1jak3")
const OFFICE_SCENE = preload("uid://mixrqf035krk")
const SHOP_SCENE = preload("uid://dbn63mv0peqf")
const CHURCH_SCENE = preload("uid://brn0nbkela0m4")
const CITY_HALL_SCENE = preload("uid://dtnejoimqiu0o")
const DEMOLITIONS_SCENE = preload("uid://dvmglvbersupv")
#const POST_OFFICE_SCENE = preload("uid://bpi8owv5lxyjy")

const BASE_DECK = [
	BANK_SCENE,
	BAR_SCENE,
	CAFE_SCENE,
	FORK_SCENE,
	GUN_SHOP_SCENE,
	HOSPITAL_SCENE,
	OFFICE_SCENE,
	SHOP_SCENE,
	CHURCH_SCENE,
	CITY_HALL_SCENE,
	DEMOLITIONS_SCENE
]

const WINNING_MONEY_AMOUNT: int = 200

var citizen_count: int = 0:
	set(value):
		#print(value)
		citizen_count = value
		if citizen_count == 0:
			handle_citizens_finished()

var buildings_added_to_draft: int = 0
var spawn_placement_actions: int = 0
var draft_index_to_be_deleted: int = -1
var num_players_ready_for_day_start: int = 0
var is_playing_day: bool = false

var current_board_state: BoardState:
	set(value):
		current_board_state = value
		#controls.check_controls_enabled()
		#controls.set_info()

var pending_board_state: BoardState:
	set(value):
		pending_board_state = value
		#controls.check_controls_enabled()

var original_board_state: BoardState

var deck: Array[Building] = []

@onready var board: Board = %Board
@onready var controls: Controls = %Controls
@onready var game_over: Control = %GameOver


func _init() -> void:
	Globals.board_game = self


@rpc("any_peer", "call_local", "reliable")
func setup_building_deck() -> void:
	for i in range(current_board_state.players.size()):
		for scene in BASE_DECK:
			deck.append(scene.instantiate())


@rpc("any_peer", "call_local", "reliable")
func advance_board_state(board_state: Dictionary) -> void:
	pending_board_state = null
	current_board_state = BoardState.deserialize(board_state)
	board.reset()
	board.set_board_state(current_board_state)
	controls.set_board_state(current_board_state)
	if current_board_state.state == BoardState.State.INITIAL_SETUP:
		if current_board_state.turn >= 0:
			current_board_state.players.reverse()
			current_board_state.current_player = current_board_state.players[0]
			controls.set_info()
			start_day()
		elif Globals.game.this_player.id == current_board_state.current_player.id:
			if current_board_state.turn >= -current_board_state.players.size():
				board.set_active_building(HQ_SCENE.instantiate())
			else:
				board.set_active_building(HOME_SCENE.instantiate())
	elif current_board_state.state == BoardState.State.PLACING_SPAWNS:
		start_day()
	if current_board_state.players_passed == Globals.game.players.size():
		current_board_state.players_passed = 0
		end_day()
	controls.check_controls_enabled()
	controls.set_info()
	original_board_state = BoardState.deserialize(current_board_state.serialize())


@rpc("any_peer", "call_local", "reliable")
func update_board_state(board_state: Dictionary) -> void:
	current_board_state = BoardState.deserialize(board_state)
	board.reset()
	board.set_board_state(current_board_state)
	controls.set_board_state(current_board_state)
	controls.check_controls_enabled()
	controls.set_info()


@rpc("any_peer", "call_local", "reliable")
func add_building_to_draft(building_data: Dictionary) -> void:
	current_board_state.real_estate_market.append(Building.deserialize(building_data))
	buildings_added_to_draft += 1
	if buildings_added_to_draft >= Globals.game.players.size():
		buildings_added_to_draft = 0
		current_board_state.state = BoardState.State.PLAY
		controls.check_controls_enabled()
		controls.set_info()
		original_board_state = BoardState.deserialize(current_board_state.serialize())
	update_board_state.rpc(current_board_state.serialize())


@rpc("any_peer", "call_local", "reliable")
func ready_for_day_start() -> void:
	num_players_ready_for_day_start += 1
	if num_players_ready_for_day_start >= Globals.game.players.size():
		all_players_ready_for_day_start.emit()


func select_tile(tile: Tile) -> void:
	board.set_active_tile(Tile.deserialize(tile.serialize()))


func select_building(building: Building) -> void:
	if building is Home:
		board.remove_home(current_board_state.current_player)
	if building is HQ:
		board.remove_hq(current_board_state.current_player)
	board.set_active_building(Building.deserialize(building.serialize()))
	draft_index_to_be_deleted = current_board_state.real_estate_market.find_custom(
		func(b: Building) -> bool:
			return (
				b.get_script() == building.get_script()
				and b.cost == building.cost
				and b.player == building.player
			)
	)


func cancel_placement() -> void:
	draft_index_to_be_deleted = -1
	if is_instance_valid(board.active_tile):
		board.active_tile.queue_free()
		board.active_tile = null
	if is_instance_valid(board.active_building):
		board.active_building.queue_free()
		board.active_building = null


func start_day() -> void:
	if (
		current_board_state.day > 0
		and current_board_state.state != BoardState.State.PLACING_SPAWNS
		and current_board_state.state != BoardState.State.DESTROYING_BUILDINGS
	):
		current_board_state.players.sort_custom(
			func(p1: Player, p2: Player) -> bool: return p1.money > p2.money
		)
		current_board_state.current_player = current_board_state.players[0]

		await all_players_ready_for_day_start

	if current_board_state.state == BoardState.State.DESTROYING_BUILDINGS:
		if current_board_state.buildings_to_destroy > 0:
			if current_board_state.current_player.id == Globals.game.this_player.id:
				board.is_destroying_building = true
			return
		current_board_state.state = BoardState.State.DRAFT

	if current_board_state.state == BoardState.State.PLACING_SPAWNS:
		if current_board_state.spawn_placements > 0:
			if current_board_state.current_player.id == Globals.game.this_player.id:
				board.call_deferred(
					"set_active_building", load("uid://d4ltd1geg7s2p").instantiate()
				)
			return
		current_board_state.state = BoardState.State.DRAFT
	current_board_state.day += 1
	current_board_state.turn = 1
	current_board_state.state = BoardState.State.DRAFT
	for p in current_board_state.players:
		p.build_actions_taken = 0
	_tally_votes()
	reduce_draft_costs()

	seed(Globals.game.sum_player_ids())
	deck.shuffle()
	#deck.push_front(POST_OFFICE_SCENE.instantiate())
	var turn_index := current_board_state.get_this_player_index()
	controls.give_hand(deck.slice(0 + (3 * turn_index), 3 + (3 * turn_index)))
	controls.set_info()


func end_day() -> void:
	controls.end_day()
	get_tree().call_group("Pausable", "unpause")
	is_playing_day = true


func update_player_votes(player: Player, votes: int) -> void:
	var idx = current_board_state.get_player_index(player)
	current_board_state.players[idx].votes = votes


func update_player_money(player: Player, money: int) -> void:
	var idx = current_board_state.get_player_index(player)
	current_board_state.players[idx].money = money


func reduce_draft_costs() -> void:
	for building in current_board_state.real_estate_market:
		building.cost = ceili(building.cost / 2.0)
	controls.set_board_state(current_board_state)


func handle_board_state_changed() -> void:
	pending_board_state = BoardState.new()
	pending_board_state.day = current_board_state.day
	pending_board_state.spawn_placements = current_board_state.spawn_placements
	pending_board_state.buildings_to_destroy = current_board_state.buildings_to_destroy
	if (
		current_board_state.state != BoardState.State.DRAFT
		and current_board_state.state != BoardState.State.PLACING_SPAWNS
	):
		pending_board_state.turn = current_board_state.turn + 1
	pending_board_state.state = current_board_state.state
	pending_board_state.players = current_board_state.players
	pending_board_state.players.push_back(pending_board_state.players.pop_front())
	if (
		pending_board_state.state == BoardState.State.INITIAL_SETUP
		and pending_board_state.turn == -pending_board_state.players.size()
	):
		pending_board_state.players.reverse()
	pending_board_state.current_player = current_board_state.players[0]
	pending_board_state.tiles = board.tiles.values()
	for building in board.buildings.values():
		if !pending_board_state.buildings.has(building):
			pending_board_state.buildings.append(building)
	pending_board_state.real_estate_market = current_board_state.real_estate_market
	controls.check_controls_enabled()
	controls.set_info()


func handle_board_state_confirmed() -> void:
	if draft_index_to_be_deleted != -1:
		pending_board_state.real_estate_market.remove_at(draft_index_to_be_deleted)
		draft_index_to_be_deleted = -1
	advance_board_state.rpc(pending_board_state.serialize())


func handle_pass() -> void:
	current_board_state.players_passed += 1
	current_board_state.turn += 1
	current_board_state.players.push_back(current_board_state.players.pop_front())
	current_board_state.current_player = current_board_state.players[0]
	advance_board_state.rpc(current_board_state.serialize())


func handle_citizens_finished() -> void:
	for child in board.board_state.get_children():
		if child.get_groups().has("PostTurnActions"):
			child.handle_post_turn_actions()
	is_playing_day = false
	controls.reset_turn()
	var winning_player_idx = current_board_state.players.find_custom(
		func(p: Player) -> bool: return p.money >= WINNING_MONEY_AMOUNT
	)
	if winning_player_idx != -1:
		game_over.set_winning_player(current_board_state.players[winning_player_idx])
	else:
		start_day()
		ready_for_day_start.rpc()


func _tally_votes() -> void:
	var most_votes: int = (
		current_board_state.players.map(func(p: Player) -> int: return p.votes).max()
	)
	var players_with_most_votes: Array[Player] = current_board_state.players.filter(
		func(p: Player) -> bool: return p.votes == most_votes
	)
	if players_with_most_votes.size() == 1:
		players_with_most_votes[0].building_permits += 1
	for player in current_board_state.players:
		player.votes = 0


func queue_spawn_placement(num_placements: int) -> void:
	current_board_state.spawn_placements += num_placements * current_board_state.players.size()
	current_board_state.state = BoardState.State.PLACING_SPAWNS


func queue_building_destruction(num: int) -> void:
	current_board_state.buildings_to_destroy += num * current_board_state.players.size()
	current_board_state.state = BoardState.State.DESTROYING_BUILDINGS


func sell_building_permit() -> void:
	if current_board_state.players[0].building_permits > 0:
		current_board_state.players[0].building_permits -= 1
		current_board_state.players[0].money += 20
		current_board_state.turn += 1
		current_board_state.players.push_back(current_board_state.players.pop_front())
		current_board_state.current_player = current_board_state.players[0]
		advance_board_state.rpc(current_board_state.serialize())