extends VBoxContainer

class_name BuildMenu

@export var grid_input: GridInput
@export var grid: Grid

func build_button_pressed(button: BuildButton):
	grid_input.request_area(
		button.building,
		request_confirmed,
		request_cancelled,
		GridInput.Style.Build,
		button.building.area_type,
		false
	)

func tile_is_valid_at_location(building: BuildingData, tile_pos: Vector2i) -> bool:
	for requirement in building.field_requirements:
		if !requirement.is_satisfied_at_position(self.grid, tile_pos):
			return false
	return true
	

func request_confirmed(building: BuildingData, area: Rect2i) -> void:
	for x in range(area.position.x, area.position.x + area.size.x):
		for y in range(area.position.y, area.position.y + area.size.y):
			if !tile_is_valid_at_location(building, Vector2i(x, y)): continue
			var new_tile = Building.new(Vector2i(x, y), Vector2i.ONE, building)
			grid.add_child(new_tile)


func request_cancelled(building: BuildingData) -> void:
	pass