class_name LevelGiftPanel
extends PanelModule

# 等级礼包面板：
# - 按玩家等级和领取记录展示可领取/未达成/已领取状态。
# - 奖励文本复用配置表字段，领取后统一调用库存 Facade 落账。
# - 这里只负责活动 UI 和按钮状态，不改变等级经验计算规则。
var _list: VBoxContainer

const CONTENT_BG_POSITION := Vector2(76.0, 188.0)
const CONTENT_BG_SIZE := Vector2(488.0, 594.0)
const SCROLL_POSITION := Vector2(82.0, 198.0)
const SCROLL_SIZE := Vector2(474.0, 570.0)
const LIST_WIDTH := 468.0
const ROW_SIZE := Vector2(468.0, 118.0)
const ROW_SEPARATION := 18


func open() -> void:
	_close_modal(false)
	await _refresh_store_house()
	var title: Texture2D = _texture_provider.frame(_texture_provider.atlas_path("gift"), "onLineGift_Title2_png")
	var icon: Texture2D = _texture_provider.frame(_texture_provider.atlas_path("gift"), "onLineGift_Gift1_png")
	var panel: Control = _ui.create_panel_shell("LevelGiftPanel", Vector2(600.0, 820.0), icon, title)
	_ui.add_content_panel_background(panel, "InnerPage", CONTENT_BG_POSITION, CONTENT_BG_SIZE)
	var scroll := ScrollContainer.new()
	scroll.name = "LevelGiftScroll"
	scroll.position = SCROLL_POSITION
	scroll.size = SCROLL_SIZE
	scroll.clip_contents = true
	_ui.configure_vertical_scroll(scroll)
	scroll.vertical_scroll_mode = ScrollContainer.SCROLL_MODE_SHOW_NEVER
	panel.add_child(scroll)
	_list = VBoxContainer.new()
	_list.name = "LevelGiftList"
	_list.custom_minimum_size = Vector2(LIST_WIDTH, 0.0)
	_list.add_theme_constant_override("separation", ROW_SEPARATION)
	scroll.add_child(_list)
	_open_modal(panel)
	await render()


func render() -> void:
	var list := _list
	if not _clear_children_if_live(list):
		return
	_ui.add_panel_label(list, "Loading", "读取等级礼包...", Vector2.ZERO, Vector2(490.0, 50.0), 22, Color.html("#753f24"), 0, Color.TRANSPARENT)
	var result: Dictionary = await _activity_api.fetch_level_gift_list(_token())
	if not _is_current_node(list, _list):
		return
	_clear_children(list)
	var received := {}
	if result.get("ok", false):
		var data = _response_data(result, {})
		if data is Dictionary:
			for row in data.get("list", []):
				if row is Dictionary:
					received[int(row.get("gift_id", row.get("id", 0)))] = true
	else:
		_show_toast(_response_status_text(result, "等级礼包读取失败"))
	var player := _player_data()
	for gift in _game_config.get_level_gift_config():
		var status := 2
		if received.has(int(gift.get("id", 0))):
			status = 0
		elif int(gift.get("player_level", 1)) <= int(player.get("level", 1)):
			status = 1
		_add_row(list, gift, status)


func _add_row(parent: Control, gift: Dictionary, status: int) -> void:
	var holder := Control.new()
	holder.name = "Gift%s" % int(gift.get("id", 0))
	holder.custom_minimum_size = ROW_SIZE
	holder.size = ROW_SIZE
	parent.add_child(holder)
	_ui.add_nine_patch(holder, "Bg", _texture_provider.frame(_texture_provider.atlas_path("common2"), "common_itemrender_png"), Vector2.ZERO, holder.size, Vector4(95.0, 70.0, 350.0, 108.0))
	_ui.add_panel_label(holder, "Title", "LV.%s 等级礼包" % int(gift.get("player_level", 1)), Vector2(20.0, 10.0), Vector2(175.0, 30.0), 24, Color.html("#fff75f"), 2, Color.html("#7d1c1c"), HORIZONTAL_ALIGNMENT_LEFT)
	var reward_text := _reward_fields_to_text(gift, 1, 4)
	_add_cost_slots(holder, reward_text, Vector2(20.0, 43.0), 4, 76.0, Vector2(66.0, 66.0))
	var normal: Texture2D = _texture_provider.frame(_texture_provider.atlas_path("gift"), "onLineGift_lingqu_png")
	var disabled: Texture2D = _texture_provider.frame(_texture_provider.atlas_path("gift"), "onLineGift_lingqud_png")
	var button_tex: Texture2D = normal if status == 1 else _texture_provider.frame(_texture_provider.atlas_path("gift"), "onLineGift_yilingqu_png")
	var button_text := "领取" if status == 1 else ("已领取" if status == 0 else "未达成")
	var button: Control = _ui.add_texture_button(holder, "Claim", button_tex, Vector2(342.0, 43.0), Vector2(108.0, 46.0), button_text, Callable(self, "_claim").bind(int(gift.get("id", 0))), 22)
	_set_texture_button_enabled(button, status == 1, normal, disabled)


func _claim(gift_id: int) -> void:
	if _is_busy():
		return
	var gift := _find_config_by_id(_game_config.get_level_gift_config(), gift_id)
	if gift.is_empty():
		return
	_set_busy(true)
	var result: Dictionary = await _activity_api.claim_level_gift(_token(), gift_id)
	_set_busy(false)
	if not result.get("ok", false):
		_show_toast(_response_status_text(result, "领取等级礼包失败"))
		return
	var rewards := _reward_fields_to_text(gift, 1, 4)
	_add_reward_items(rewards)
	_show_toast("获得 %s" % _format_reward_text(rewards))
	await _refresh_store_house()
	await render()