class_name PlayerCitizenSystem
extends RefCounted

var player_state := PlayerStateRecord.create_default()
var economy: RefCounted
var _record_event: Callable


func configure(economy_state: RefCounted, record_event: Callable) -> void:
	economy = economy_state
	_record_event = record_event


func advance_needs(food_modifier: float) -> void:
	player_state.set_hunger(player_state.get_hunger() + 0.125 * food_modifier)
	player_state.set_energy(maxf(player_state.get_energy() - 0.0625, 0.0))


func add_carried(item_id: StringName, amount: float) -> void:
	player_state.add_inventory(item_id, amount)


func get_carried(item_id: StringName) -> float:
	return player_state.get_inventory_amount(item_id)


func deposit(item_id: StringName, event_position: Vector3) -> float:
	if item_id.is_empty():
		return 0.0
	var storage := _storage_for(item_id)
	if storage == null:
		return 0.0
	var deposited := storage.deposit(item_id, player_state.get_inventory_amount(item_id))
	player_state.remove_inventory(item_id, deposited)
	economy.sync_resource(item_id)
	if deposited > 0.0:
		_record_event.call(
			SimulationIds.EVENT_STORAGE_DEPOSITED,
			SimulationIds.PLAYER_INVENTORY_ID,
			storage.get_storage_id(),
			item_id,
			deposited,
			event_position
		)
	return deposited


func eat(event_position: Vector3) -> bool:
	if player_state.get_inventory_amount(SimulationIds.RESOURCE_FOOD) >= 1.0:
		player_state.remove_inventory(SimulationIds.RESOURCE_FOOD, 1.0)
		_apply_meal(event_position, SimulationIds.PLAYER_INVENTORY_ID)
		return true
	var pantry := _storage_for(SimulationIds.RESOURCE_FOOD)
	if pantry != null and pantry.get_amount(SimulationIds.RESOURCE_FOOD) > 0.0:
		var withdrawn := pantry.withdraw(SimulationIds.RESOURCE_FOOD, 1.0)
		economy.sync_resource(SimulationIds.RESOURCE_FOOD)
		if withdrawn <= 0.0:
			return false
		_apply_meal(event_position, pantry.get_storage_id())
		return true
	return false


func _apply_meal(event_position: Vector3, source_id: StringName) -> void:
	player_state.set_hunger(maxf(player_state.get_hunger() - 55.0, 0.0))
	player_state.set_energy(minf(player_state.get_energy() + 10.0, 100.0))
	_record_event.call(
		SimulationIds.EVENT_ITEM_CONSUMED,
		source_id,
		&"consumed",
		SimulationIds.RESOURCE_FOOD,
		1.0,
		event_position
	)


func _storage_for(item_id: StringName) -> StorageStateRecord:
	if economy == null or not economy.has_method("get_storage_for_resource"):
		return null
	return economy.get_storage_for_resource(item_id) as StorageStateRecord