extends Node

var player: Node3D
var movement_manager: Node
var race_manager: Node

func initialize(p_player: Node3D, p_movement_manager: Node, p_race_manager: Node):
	player = p_player
	movement_manager = p_movement_manager
	race_manager = p_race_manager

func _process(delta):
	# Early return conditions
	if not is_instance_valid(player) or not player.is_multiplayer_authority() or player.is_bot or player.is_in_group("Bots") or player.is_frozen or player.is_stop_frozen:
		return
		
	if TurnManager.turn_based_mode:
		return
		
	# Continuous movement input
	var target_position = player.current_position
	
	if Input.is_action_pressed("move_north"):
		target_position += Vector2i(0, -1)
	elif Input.is_action_pressed("move_northeast"):
		target_position += Vector2i(1, -1)
	elif Input.is_action_pressed("move_east"):
		target_position += Vector2i(1, 0)
	elif Input.is_action_pressed("move_southeast"):
		target_position += Vector2i(1, 1)
	elif Input.is_action_pressed("move_south"):
		target_position += Vector2i(0, 1)
	elif Input.is_action_pressed("move_southwest"):
		target_position += Vector2i(-1, 1)
	elif Input.is_action_pressed("move_west"):
		target_position += Vector2i(-1, 0)
	elif Input.is_action_pressed("move_northwest"):
		target_position += Vector2i(-1, -1)
	
	# Action inputs (still momentary)
	if Input.is_action_just_pressed("action_grab"):
		player.grab_item(player.current_position)
	elif Input.is_action_just_pressed("action_put"):
		player.auto_put_item()
		
	if target_position != player.current_position:
		movement_manager.simple_move_to(target_position)


	# Targeting Mode Preview
	var main = player.get_node_or_null("/root/Main")
	if main and main.ui_manager and main.ui_manager.current_action_state == main.ui_manager.ActionState.TARGETING:
		# Use mouse position raycast to determine hover
		var viewport = player.get_viewport()
		var mouse_pos = viewport.get_mouse_position()
		var camera = viewport.get_camera_3d()
		var from = camera.project_ray_origin(mouse_pos)
		var to = from + camera.project_ray_normal(mouse_pos) * 1000
		var hover_grid = player.raycast_to_grid(from, to)
		
		# print("Targeting Hover: %s, Skill: %d" % [hover_grid, main.ui_manager.pending_skill_id]) # Debug
		
		# Only update if valid position
		if hover_grid != Vector2i(-1, -1):
			var st_manager = player.get_node_or_null("SpecialTilesManager")
			if st_manager:
				var area = st_manager.get_skill_affected_area(main.ui_manager.pending_skill_id, hover_grid)
				
				# Choose highlight color/mesh based on skill
				# User Request: Use default hover item (1)
				var highlight_id = 1
				
				player.highlight_cells_if_authorized(area, highlight_id)

func handle_unhandled_input(event):
	# Early return if not authorized human playersa
	if not player.is_multiplayer_authority() or player.is_bot or player.is_in_group("Bots"):
		player.set_process_unhandled_input(false)
		return
	
	var main = player.get_node("/root/Main")
	if not main:
		return
	
	# Turn-based mouse input (handled in unhandled_input)
	if not player.is_multiplayer_authority() or player.is_frozen or player.is_stop_frozen or (TurnManager.turn_based_mode and (not player.is_my_turn or movement_manager.is_moving)):
		return

	# --- Keyboard Shortcuts (Event-based) ---
	if event is InputEventKey and event.pressed and not event.echo:
		match event.keycode:
			KEY_KP_1, KEY_1, KEY_KP_2, KEY_2, KEY_KP_3, KEY_3, KEY_KP_4, KEY_4:
				var mode = LobbyManager.get_game_mode()
				var is_restricted = GameMode.is_restricted(mode)
				match event.keycode:
					KEY_KP_1, KEY_1:
						player.activate_powerup(0) # FASTER_SPEED
					KEY_KP_2, KEY_2:
						if is_restricted:
							player.activate_powerup(1) # AREA_FREEZE (Restricted)
						else:
							player.activate_powerup(2) # BLOCK_FLOOR (Free)
					KEY_KP_3, KEY_3:
						if is_restricted:
							player.activate_powerup(3) # INVISIBLE_MODE (Restricted)
						else:
							player.activate_powerup(1) # AREA_FREEZE (Free)
					KEY_KP_4, KEY_4:
						if not is_restricted:
							player.activate_powerup(3) # INVISIBLE_MODE (Free)
			# KEY_R:
			# 	player.auto_put_item()
			KEY_Q:
				if player.powerup_manager:
					# Attack Mode (formerly Special)
					# Now we want "Straight to Attack Mode" style
					
					player.powerup_manager.use_special_effect()
					
					# Force visual update / mutual exclusivity manually if powerup manager doesn't do it yet
					if player.is_attack_mode and player.has_method("enter_attack_mode"):
						# Re-triggering enter_attack_mode might be redundant but safely ensures visuals/Knock=False
						player.enter_attack_mode()
						
			KEY_E:
				if player.powerup_manager:
					# Spawn Boost
					if player.powerup_manager.has_method("spawn_boost_reward"):
						player.powerup_manager.spawn_boost_reward()
					else:
						# Fallback if method missing
						player.powerup_manager.use_special_effect()
			KEY_G:
				if player.is_carrying_tekton:
					if player.powerup_manager and player.powerup_manager.can_use_special():
						player.throw_tekton()
						player.powerup_manager.reset_boost()
				else:
					player.grab_tekton()
			KEY_B:
				if player.powerup_manager and player.powerup_manager.can_use_special():
					if player.has_method("_find_nearby_tekton") and player._find_nearby_tekton():
						player.knock_tekton()
					elif player.has_method("enter_knock_mode"):
						player.enter_knock_mode()
	
	# Handle spawn point selection if not yet selected
	
	# Handle spawn point selection if not yet selected
	if not player.spawn_point_selected and player.highlighted_spawn_points.size() > 0:
		if event is InputEventMouseButton and event.pressed and event.button_index == MOUSE_BUTTON_LEFT:
			var camera = player.get_viewport().get_camera_3d()
			var from = camera.project_ray_origin(event.position)
			var to = from + camera.project_ray_normal(event.position) * 1000
			
			var click_position = player.raycast_to_grid(from, to)
			if click_position in player.highlighted_spawn_points:
				if player.select_spawn_point(click_position):
					return
	
	# Turn-based mouse input
	if not player.is_multiplayer_authority() or (TurnManager.turn_based_mode and (not player.is_my_turn or movement_manager.is_moving)):
		return

	if event is InputEventMouseButton and event.pressed and event.button_index == MOUSE_BUTTON_LEFT:
		if player.is_bot == true or player.is_in_group("Bots"):
			player.set_process_unhandled_input(false)
			player.set_process_input(false)
			return
		var camera = player.get_viewport().get_camera_3d()
		var from = camera.project_ray_origin(event.position)
		var to = from + camera.project_ray_normal(event.position) * 1000
		
		var click_position = player.raycast_to_grid(from, to)
		if click_position != Vector2i(-1, -1):
			handle_grid_click(click_position)

func handle_grid_click(grid_position: Vector2i):
	if player.is_frozen or player.is_stop_frozen or player.is_bot == true or player.is_in_group("Bots"):
		return
	var main = player.get_node("/root/Main")
	if not main:
		return
		
	match main.ui_manager.current_action_state:
		main.ui_manager.ActionState.MOVING:
			if grid_position in player.highlighted_cells:
				movement_manager.move_to_clicked_position(grid_position)
		main.ui_manager.ActionState.GRABBING:
			if grid_position in player.highlighted_cells or grid_position == player.current_position:
				player.grab_item(grid_position)
		main.ui_manager.ActionState.RANDOMIZING:
			if grid_position in player.highlighted_cells:
				main.randomize_item_at_position(grid_position)
		# Add TARGETING State
		main.ui_manager.ActionState.TARGETING:
			var skill_id = main.ui_manager.pending_skill_id
			if skill_id != -1:
				var st_manager = player.get_node_or_null("SpecialTilesManager")
				if st_manager:
					# Clear Highlights FIRST to avoid overwriting the newly placed tiles
					player.clear_highlights()
					
					st_manager.execute_targeted_effect(skill_id, grid_position)
					# Reset state
					main.ui_manager.pending_skill_id = -1
					main.ui_manager.current_action_state = main.ui_manager.ActionState.NONE


func handle_slot_gui_input(event, slot_index, slot_ui) -> int:
	if event is InputEventMouseButton and event.pressed and event.button_index == MOUSE_BUTTON_LEFT:
		var main = player.get_tree().get_root().get_node_or_null("Main")
		
		if main.ui_manager.current_action_state == main.ui_manager.ActionState.ARRANGING:
			if player.selected_playerboard_slot == -1:
				player.select_playerboard_slot(slot_index)
				return slot_index
			else:
				if player.selected_playerboard_slot == slot_index:
					player.deselect_playerboard_slot()
					return slot_index
				elif player.can_move_to_target_playerboard_slot():
					player.target_playerboard_slot(slot_index)
					main.emit_signal("can_move_item", true)
					return slot_index
				else:
					return -1
	return -1