class_name FishInventory
extends Node

const FishCatchType = preload("res://fish/fish_catch.gd")

signal contents_changed(fish_id: StringName, count: int)
signal catches_changed

var _catches: Array[FishCatchType] = []
var _next_catch_sequence: int = 1


func add_catch(fish_catch: FishCatchType) -> void:
	if fish_catch == null or not fish_catch.is_valid():
		return
	if get_catch(fish_catch.catch_id) != null:
		return
	if fish_catch.catch_sequence <= 0:
		fish_catch.catch_sequence = _next_catch_sequence
	_next_catch_sequence = maxi(
		_next_catch_sequence,
		fish_catch.catch_sequence + 1
	)
	_catches.append(fish_catch)
	contents_changed.emit(
		fish_catch.fish_id,
		get_count(fish_catch.fish_id)
	)
	catches_changed.emit()


func get_count(fish_id: StringName) -> int:
	return get_catches_by_fish_id(fish_id).size()


func get_all_catches() -> Array[FishCatchType]:
	return _catches.duplicate()


func get_catch(catch_id: StringName) -> FishCatchType:
	if catch_id.is_empty():
		return null
	for fish_catch: FishCatchType in _catches:
		if fish_catch != null and fish_catch.catch_id == catch_id:
			return fish_catch
	return null


func get_catches_by_fish_id(fish_id: StringName) -> Array[FishCatchType]:
	var matching: Array[FishCatchType] = []
	for fish_catch: FishCatchType in _catches:
		if fish_catch.fish_id == fish_id:
			matching.append(fish_catch)
	return matching