class_name Citizen extends CharacterBody2D

enum Status { NONE, DRUNK, ARMED, CAFFEINATED, PACKAGED }

const DRUNK_ICON = preload("uid://28x2e52skdt1")
const COFFEE_ICON = preload("uid://0644a3psplk8")
const ARMED_ICON = preload("uid://cn8biugbtcns5")
const PACKAGE_ICON = preload("uid://drhv16h2tgoju")

var direction: Board.Direction:
	set(new_direction):
		direction = new_direction
		if direction == Board.Direction.NONE:
			idle()
		else:
			walk()

var paused: bool:
	set(value):
		paused = value
		if paused:
			animated_sprite.pause()
		else:
			animated_sprite.play()

var speed: float = 50
var current_tile_coords: Vector2i
var direction_queue: Array[Board.Direction] = []
var money: int = 0
var money_label_tween: Tween
var tiles_visited: Dictionary[Tile, int] = {}
var buildings_visited: Dictionary[Building, int] = {}
var package_distance: int = 0

var _statuses: Array[Status] = []

@onready var animated_sprite: AnimatedSprite2D = %AnimatedSprite
@onready var sprite_collision: CollisionShape2D = %SpriteCollision
@onready var tile_area: Area2D = %TileArea
@onready var money_label: Label = %MoneyLabel
@onready var status_container: Container = %StatusContainer


func _ready() -> void:
	Globals.board_game.citizen_count += 1
	money = Globals.board_game.current_board_state.citizens_starting_money


func pause() -> void:
	paused = true


func unpause() -> void:
	paused = false


func add_status(status: Status) -> void:
	_statuses.push_back(status)
	match status:
		Status.DRUNK:
			status_container.add_child(DRUNK_ICON.instantiate())
		Status.CAFFEINATED:
			status_container.add_child(COFFEE_ICON.instantiate())
		Status.ARMED:
			status_container.add_child(ARMED_ICON.instantiate())
		Status.PACKAGED:
			status_container.add_child(PACKAGE_ICON.instantiate())


func remove_status(status: Status) -> void:
	var status_idx := _statuses.find(status)
	_statuses.remove_at(status_idx)
	status_container.get_child(status_idx).free()


func get_status_count(status: Status) -> int:
	return _statuses.count(status)


func remove_all_statuses(status: Status) -> void:
	while _statuses.has(status):
		remove_status(status)


func play_money_animation() -> void:
	if is_instance_valid(money_label_tween):
		money_label_tween.kill()
	var starting_position = sprite_collision.position - (money_label.size / 2)
	money_label_tween = create_tween()
	(
		money_label_tween
		. tween_property(money_label, "position", starting_position - Vector2(0, 25), 0.75)
		. from(starting_position)
	)
	(
		money_label_tween
		. parallel()
		. tween_property(money_label, "modulate", Color(1, 1, 1, 0), 0.75)
		. from(Color(1, 1, 1, 1))
	)


func set_offset(offset: Vector2) -> void:
	animated_sprite.position = offset
	sprite_collision.position = offset
	status_container.position = offset + Vector2(5, -5)


func _physics_process(delta: float) -> void:
	if paused:
		return
	var motion: Vector2
	match direction:
		Board.Direction.UP:
			#position = position.move_toward(position + Vector2.UP, speed * delta)
			motion = Vector2.UP * speed * delta
		Board.Direction.DOWN:
			#position = position.move_toward(position + Vector2.DOWN, speed * delta)
			motion = Vector2.DOWN * speed * delta
		Board.Direction.RIGHT:
			#position = position.move_toward(position + Vector2.RIGHT, speed * delta)
			motion = Vector2.RIGHT * speed * delta
		Board.Direction.LEFT:
			#position = position.move_toward(position + Vector2.LEFT, speed * delta)
			motion = Vector2.LEFT * speed * delta
	move_and_collide(motion)


func idle() -> void:
	Globals.board_game.citizen_count -= 1
	animated_sprite.play("idle")


func walk() -> void:
	match direction:
		Board.Direction.UP:
			animated_sprite.play("walk_up")
		Board.Direction.DOWN:
			animated_sprite.play("walk_down")
		Board.Direction.LEFT:
			animated_sprite.flip_h = true
			animated_sprite.play("walk_right")
		Board.Direction.RIGHT:
			animated_sprite.flip_h = false
			animated_sprite.play("walk_right")


#func check_for_wall() -> void:
#var tile_walls = board.wall_map.get_cell_scene(current_tile_coords).walls
#if tile_walls.has(direction):
#direction = Board.get_next_direction(direction)
#check_for_wall()


func check_for_turn(tile: Tile) -> void:
	if tile is Turn:
		if _statuses.has(Status.DRUNK):
			remove_status(Status.DRUNK)
		else:
			direction = tile.direction


func check_for_adjacent_building() -> void:
	for adj in [Vector2i.UP, Vector2i.RIGHT, Vector2i.DOWN, Vector2i.LEFT]:
		var building = Globals.board_game.board.buildings.get(current_tile_coords + adj)
		if building is SoupKitchen:
			building.activate(self)


func check_for_building() -> void:
	if Globals.board_game.board.buildings.has(
		current_tile_coords + Board.get_direction_vector(direction)
	):
		var building = Globals.board_game.board.buildings[
			current_tile_coords + Board.get_direction_vector(direction)
		]
		if !building.can_citizen_enter(current_tile_coords, direction):
			direction = Board.get_next_direction(direction)
			check_for_building()


func handle_tile_area_exited(_area: Area2D):
	if is_queued_for_deletion():
		return
	current_tile_coords = Globals.board_game.board.tile_map.local_to_map(tile_area.global_position)
	if (
		!Globals.board_game.board.tiles.has(current_tile_coords)
		and !Globals.board_game.board.buildings.has(current_tile_coords)
	):
		if direction != Board.Direction.NONE:
			direction = Board.Direction.NONE
			return
	if get_status_count(Citizen.Status.PACKAGED) > 0:
		package_distance += 1
	if !direction_queue.is_empty():
		direction = direction_queue.pop_front()
	elif Globals.board_game.board.buildings.has(current_tile_coords):
		var building = Globals.board_game.board.buildings[current_tile_coords]
		if !buildings_visited.has(building):
			buildings_visited.set(building, 0)
		buildings_visited[building] += 1
		building.activate(self)
		direction_queue = building.get_direction_queue(self)
		if !direction_queue.is_empty():
			direction = direction_queue.pop_front()
	elif Globals.board_game.board.tiles.has(current_tile_coords):
		var tile = Globals.board_game.board.tiles[current_tile_coords]
		if !tiles_visited.has(tile):
			tiles_visited.set(tile, 0)
		tiles_visited[tile as Tile] += 1
		check_for_adjacent_building()
		check_for_building()
		check_for_turn(tile)
	if (
		buildings_visited.values().any(func(v: int): return v > 3)
		or tiles_visited.values().any(func(v: int): return v > 3)
	):
		direction = Board.Direction.NONE


func handle_post_turn_actions() -> void:
	queue_free()