extends Control

@onready var tabs = [
	$HBoxContainer/BuildingTab, $HBoxContainer/BuildingTab2, $HBoxContainer/BuildingTab3
]

@onready var building_data = Data.data.buildings
@onready var buildings = building_data.keys()


@onready var v_box_container: HBoxContainer = $Buildings/VBoxContainer

@onready var icons = [
	$Buildings/VBoxContainer/BuildingIcon,
	$Buildings/VBoxContainer/BuildingIcon2,
	$Buildings/VBoxContainer/BuildingIcon3,
	$Buildings/VBoxContainer/BuildingIcon4
]

@onready var spacers = [
	$Buildings/VBoxContainer/Spacer,
	$Buildings/VBoxContainer/Spacer2,
	$Buildings/VBoxContainer/Spacer3
]


func _ready() -> void:
	swap_to_tab(0)
	Triggerer.listen("stone", _trigger_check)
	Triggerer.listen("wood", _trigger_check)


func swap_to_tab(index):
	for i in range(0, tabs.size()):
		if i == index:
			tabs[i].select()
		else:
			tabs[i].unselect()
	
	var filtered_buildings = buildings.filter(func(building): return building_data[building].type == tabs[index].key and (not building_data[building].has("disabled") or not building_data[building].disabled))
	
	for i in range(0, icons.size()):
		if i < filtered_buildings.size():
			icons[i].visible = true
			icons[i].key = filtered_buildings[i]
			icons[i].texture_rect.texture = Data.data.images[filtered_buildings[i]]
			
			if i > 0:
				spacers[i - 1].visible = true
		else:
			icons[i].visible = false
			
			if i > 0:
				spacers[i - 1].visible = false
	
	_update_icons()

func _trigger_check(_data):
	_update_icons()

func _update_icons():
	for i in range(0, icons.size()):
		if icons[i].visible:
			var key = icons[i].key
			var build_data = Data.data.buildings[key]
			if (build_data.cost.has("stone") and Persister.get_value("stone", PersisterEnums.Scope.UNKNOWN, 0) < int(build_data.cost.stone)) or (build_data.cost.has("wood") and Persister.get_value("wood", PersisterEnums.Scope.UNKNOWN, 0) < int(build_data.cost.wood)):
				icons[i].modulate = Color(1, 0.5, 0.5, 0.5)
			else:
				icons[i].modulate = Color(1, 1, 1, 1)

func _on_building_tab_clicked() -> void:
	swap_to_tab(0)


func _on_building_tab_2_clicked() -> void:
	swap_to_tab(1)


func _on_building_tab_3_clicked() -> void:
	swap_to_tab(2)