extends Node

## Local hotbar slot state mirror for NEO-29. Holds slot -> ability mapping from
## server-owned `HotbarLoadout` payloads.
signal hotbar_changed(slots: Array)

const SLOT_COUNT: int = 8

var _slots: Array = []


func _ready() -> void:
	if _slots.is_empty():
		_slots.resize(SLOT_COUNT)
		for i in range(SLOT_COUNT):
			_slots[i] = null


func apply_slots(slots: Array) -> void:
	var normalized: Array = []
	normalized.resize(SLOT_COUNT)
	for i in range(SLOT_COUNT):
		normalized[i] = null
	for slot_variant in slots:
		if not slot_variant is Dictionary:
			continue
		var slot: Dictionary = slot_variant
		var idx: int = int(slot.get("slotIndex", -1))
		if idx < 0 or idx >= SLOT_COUNT:
			continue
		var ability_variant: Variant = slot.get("abilityId", null)
		if ability_variant is String and not (ability_variant as String).is_empty():
			normalized[idx] = ability_variant as String
		else:
			normalized[idx] = null
	_slots = normalized
	hotbar_changed.emit(_slots.duplicate())


func slots_snapshot() -> Array:
	return _slots.duplicate()