extends RefCounted
const CARD := preload("res://scripts/planets/poi_presentation.gd")
const SERVICE := preload("res://scripts/planets/time_engineer.gd")
const CYAN := Color("9be7ff")

static func build(screen: Control, message: String = "") -> void:
	var parent: VBoxContainer = screen._choices
	var progress: Resource = screen.progress
	var art := TextureRect.new()
	art.texture = load("res://assets/planets/props/time_engineer.png")
	art.expand_mode = TextureRect.EXPAND_IGNORE_SIZE
	art.stretch_mode = TextureRect.STRETCH_KEEP_ASPECT_CENTERED
	art.custom_minimum_size.y = 125
	parent.add_child(art)
	CARD.text(parent,"INŻYNIER CHRONALNY",18,CYAN)
	CARD.text(parent,"Wybierz przedmiot i konkretny addon. Inżynier ustawi tylko jego wartość na maksimum dla obecnego poziomu przedmiotu.",12)
	if not message.is_empty(): CARD.text(parent,message,12,CARD.GOLD)
	CARD.text(parent,"Kryształy czasu: %d" % progress.time_crystals,14,CYAN)
	CARD.text(parent,"Koszt: 10 kryształów × poziom przedmiotu. Gotowe maksima nie pobierają opłaty.",12)
	if not is_instance_valid(screen.flight_ship):
		CARD.text(parent,"Brak połączenia z wyposażeniem statku.",12)
		_back(parent,screen)
		return
	var inventory: Node = screen.flight_ship.get_node("ShipInventory")
	var items: Array[ItemInstance] = []
	var locations: Array[String] = []
	for kind in ["weapon","module","extension","cargo"]:
		var slots: Array = inventory._get_slots(kind)
		for index in slots.size():
			var item: ItemInstance = slots[index]
			if not inventory.is_slot_unlocked(kind,index) or item == null or item.definition == null or item.additional_modifiers.is_empty() or items.has(item): continue
			items.append(item)
			locations.append({"weapon":"Broń","module":"Moduł","extension":"Rozszerzenie","cargo":"Ładownia"}[kind])
	if items.is_empty():
		CARD.text(parent,"Brak przedmiotów z addonami na statku. Zabierz wyposażenie z magazynu fregaty przed lądowaniem.",12,CARD.GOLD)
		_back(parent,screen)
		return
	if not items.has(screen._engineer_item):
		screen._engineer_item = items[0]
		screen._engineer_addon = 0
	CARD.text(parent,"PRZEDMIOT",11,CARD.MUTED)
	var choice := _choice(parent,"EngineerItem")
	for index in items.size():
		var item: ItemInstance = items[index]
		choice.add_item("%s · poz. %d · %s" % [item.definition.display_name,item.item_level,locations[index]])
		choice.set_item_metadata(index,item)
	choice.select(items.find(screen._engineer_item))
	choice.item_selected.connect(func(index):
		screen._engineer_item = choice.get_item_metadata(index)
		screen._engineer_addon = 0
		screen._show_poi()
	)
	var item: ItemInstance = screen._engineer_item
	CARD.text(parent,"ADDON DO MAKSYMALIZACJI",11,CARD.MUTED)
	var addons := _choice(parent,"EngineerAddon")
	var selected := 0
	for index in item.additional_modifiers.size():
		var modifier: ItemStatModifier = item.additional_modifiers[index]
		if modifier == null: continue
		var affix := SERVICE.affix_for(item,index)
		var suffix := " · brak zakresu" if affix == null else (" · MAX" if not SERVICE.can_maximize(item,index) else "")
		addons.add_item(modifier.get_display_text()+suffix)
		var option := addons.item_count-1
		addons.set_item_metadata(option,index)
		if index == screen._engineer_addon: selected = option
	if addons.item_count == 0:
		CARD.text(parent,"Brak dostępnych addonów.",12)
		_back(parent,screen)
		return
	addons.select(selected)
	screen._engineer_addon = int(addons.get_item_metadata(selected))
	addons.item_selected.connect(func(index):
		screen._engineer_addon = int(addons.get_item_metadata(index))
		screen._show_poi()
	)
	var index: int = screen._engineer_addon
	var affix := SERVICE.affix_for(item,index)
	if affix != null:
		var multiplier := ItemInstance.ENERGY_REGENERATION_BONUS_MULTIPLIER if item.additional_modifiers[index].stat_key == "energy_regeneration" else 1.0
		CARD.text(parent,"Obecnie: %.2f %s → maksimum: %.2f %s" % [item.additional_modifiers[index].value*multiplier,affix.unit,SERVICE.maximum(item,index)*multiplier,affix.unit],13,CARD.GOLD)
	var cost := SERVICE.cost(item)
	var ready := SERVICE.can_maximize(item,index)
	var apply := CARD.button(parent,"MAKSYMALIZUJ · %d KRYSZTAŁÓW" % cost,screen._maximize_addon,true)
	apply.name = "MaximizeSelectedAddon"
	apply.disabled = not ready or progress.time_crystals < cost
	if not ready:
		CARD.text(parent,"Ten addon ma już maksymalną wartość lub nie posiada zakresu losowania.",12,CARD.MUTED)
	elif progress.time_crystals < cost:
		CARD.text(parent,"Brakuje %d kryształów czasu." % (cost-progress.time_crystals),12,CARD.GOLD)
	_back(parent,screen)

static func _choice(parent: Node, node_name: String) -> OptionButton:
	var choice := OptionButton.new()
	choice.name = node_name
	choice.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	choice.fit_to_longest_item = false
	choice.add_theme_font_override("font",ThemeDB.fallback_font)
	choice.add_theme_font_size_override("font_size",12)
	parent.add_child(choice)
	return choice

static func _back(parent: Node, screen: Control) -> void:
	CARD.button(parent,"Wróć do wyprawy",func(): screen._dialog.hide())