extends PanelContainer
## Pazar paneli — oyuncu ilanları + NPC vendor. Kod ile kurulur, hud.gd ekler.
## Node adı "MarketPanel" (world.gd blokaj kontrolü).
## Görüntüleme her yerden; ilan verme / satın alma / vendor satışı sadece pazar'da
## (sunucu zaten doğrular, UI da butonları kilitler).

const PANEL_HEIGHT := 640.0
const MARKET_LOCATION := "pazar"

var _tab_listings: Button
var _tab_sell: Button
var _tab_stock: Button
var _list: VBoxContainer
var _scroll: ScrollContainer
var _search: LineEdit
var _info: Label
var _tab := "listings"  # "listings" | "sell" | "stock"

func _ready() -> void:
	name = "MarketPanel"
	visible = false
	_build_ui()

func _build_ui() -> void:
	set_anchors_preset(Control.PRESET_BOTTOM_WIDE)
	offset_top = -PANEL_HEIGHT
	offset_left = 8
	offset_right = -8
	offset_bottom = -8
	var sb := StyleBoxFlat.new()
	sb.bg_color = Color(0.13, 0.11, 0.08, 0.97)
	sb.set_corner_radius_all(10)
	add_theme_stylebox_override("panel", sb)

	var margin := MarginContainer.new()
	margin.add_theme_constant_override("margin_left", 12)
	margin.add_theme_constant_override("margin_right", 12)
	margin.add_theme_constant_override("margin_top", 8)
	margin.add_theme_constant_override("margin_bottom", 8)
	add_child(margin)

	var vbox := VBoxContainer.new()
	vbox.add_theme_constant_override("separation", 6)
	margin.add_child(vbox)

	var top := HBoxContainer.new()
	var title := Label.new()
	title.text = "🏪 Pazar"
	title.add_theme_font_size_override("font_size", 18)
	title.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	top.add_child(title)
	_tab_listings = Button.new()
	_tab_listings.text = "📜 İlanlar"
	_tab_listings.toggle_mode = true
	_tab_listings.button_pressed = true
	_tab_listings.pressed.connect(func() -> void: _switch("listings"))
	top.add_child(_tab_listings)
	_tab_sell = Button.new()
	_tab_sell.text = "🎒 Sat"
	_tab_sell.toggle_mode = true
	_tab_sell.pressed.connect(func() -> void: _switch("sell"))
	top.add_child(_tab_sell)
	_tab_stock = Button.new()
	_tab_stock.text = "🧰 Vendor"
	_tab_stock.toggle_mode = true
	_tab_stock.pressed.connect(func() -> void: _switch("stock"))
	top.add_child(_tab_stock)
	var close_btn := Button.new()
	close_btn.text = "✕"
	close_btn.pressed.connect(func() -> void: visible = false)
	top.add_child(close_btn)
	vbox.add_child(top)

	_info = Label.new()
	_info.add_theme_font_size_override("font_size", 13)
	_info.add_theme_color_override("font_color", Color(0.75, 0.7, 0.55))
	vbox.add_child(_info)

	_search = LineEdit.new()
	_search.placeholder_text = "🔍 Ara…"
	_search.text_submitted.connect(func(_t: String) -> void: refresh())
	vbox.add_child(_search)

	_scroll = ScrollContainer.new()
	_scroll.size_flags_vertical = Control.SIZE_EXPAND_FILL
	_scroll.horizontal_scroll_mode = ScrollContainer.SCROLL_MODE_DISABLED
	vbox.add_child(_scroll)

	_list = VBoxContainer.new()
	_list.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	_list.add_theme_constant_override("separation", 6)
	_scroll.add_child(_list)

func _at_market() -> bool:
	return str(GameState.character.get("location_code", "")) == MARKET_LOCATION

func open() -> void:
	visible = true
	refresh()

func _switch(tab: String) -> void:
	_tab = tab
	_tab_listings.button_pressed = tab == "listings"
	_tab_sell.button_pressed = tab == "sell"
	_tab_stock.button_pressed = tab == "stock"
	_search.visible = tab == "listings"
	refresh()

func refresh() -> void:
	_info.text = ("🪙 %d" % int(GameState.character.get("gold", 0))) + \
		("" if _at_market() else "  •  ⚠ İşlem için Pazar'a git (sadece vitrin)")
	for c in _list.get_children():
		c.queue_free()
	if _tab == "listings":
		await _render_listings()
	elif _tab == "sell":
		await _render_sell()
	else:
		await _render_stock()

func _render_listings() -> void:
	var rows: Array = await GameState.market_listings(_search.text.strip_edges())
	if rows.is_empty():
		_list.add_child(_muted("Açık ilan yok."))
		return
	for r in rows:
		if r is Dictionary:
			_list.add_child(_listing_row(r))

func _listing_row(r: Dictionary) -> HBoxContainer:
	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 10)
	var info := VBoxContainer.new()
	info.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	var name_lbl := Label.new()
	name_lbl.text = "%s ×%d" % [str(r.get("item_name", "")), int(r.get("qty", 0))]
	name_lbl.add_theme_font_size_override("font_size", 15)
	info.add_child(name_lbl)
	var meta := Label.new()
	meta.text = "🪙 %d/adet • %s" % [int(r.get("unit_price", 0)), str(r.get("seller_name", ""))]
	meta.add_theme_font_size_override("font_size", 12)
	meta.add_theme_color_override("font_color", Color(0.6, 0.58, 0.5))
	info.add_child(meta)
	row.add_child(info)

	var btn := Button.new()
	if bool(r.get("mine", false)):
		btn.text = "İptal"
		btn.pressed.connect(_on_cancel.bind(btn, int(r.get("id", 0))))
	else:
		var total: int = int(r.get("qty", 0)) * int(r.get("unit_price", 0))
		btn.text = "Al (🪙 %d)" % total
		if not _at_market():
			btn.disabled = true
		elif int(GameState.character.get("gold", 0)) < total:
			btn.text = "🪙 yetersiz"
			btn.disabled = true
		else:
			btn.pressed.connect(_on_buy.bind(btn, int(r.get("id", 0))))
	row.add_child(btn)
	return row

func _render_sell() -> void:
	var rows: Array = await GameState.vendor_prices()
	if rows.is_empty():
		_list.add_child(_muted("Envanterin boş."))
		return
	var at_market := _at_market()
	for r in rows:
		if r is Dictionary:
			_list.add_child(_sell_row(r, at_market))

func _sell_row(r: Dictionary, at_market: bool) -> VBoxContainer:
	var box := VBoxContainer.new()
	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 8)
	var name_lbl := Label.new()
	name_lbl.text = "%s ×%d" % [str(r.get("item_name", "")), int(r.get("qty", 0))]
	name_lbl.add_theme_font_size_override("font_size", 15)
	name_lbl.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	row.add_child(name_lbl)

	var qty_spin := SpinBox.new()
	qty_spin.min_value = 1
	qty_spin.max_value = int(r.get("qty", 1))
	qty_spin.value = 1
	row.add_child(qty_spin)

	var vend_btn := Button.new()
	vend_btn.text = "Vendor 🪙 %d" % int(r.get("unit_price", 0))
	vend_btn.disabled = not at_market
	vend_btn.pressed.connect(_on_vendor_sell.bind(vend_btn, str(r.get("item_code", "")), qty_spin))
	row.add_child(vend_btn)
	box.add_child(row)

	var row2 := HBoxContainer.new()
	row2.add_theme_constant_override("separation", 8)
	var spacer := Control.new()
	spacer.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	row2.add_child(spacer)
	var price_lbl := Label.new()
	price_lbl.text = "İlan fiyatı:"
	price_lbl.add_theme_font_size_override("font_size", 12)
	row2.add_child(price_lbl)
	var price_spin := SpinBox.new()
	price_spin.min_value = 1
	price_spin.max_value = 1000000
	price_spin.value = maxi(1, int(r.get("unit_price", 1)) * 2)
	row2.add_child(price_spin)
	var list_btn := Button.new()
	list_btn.text = "📜 İlan Ver"
	list_btn.disabled = not at_market
	list_btn.pressed.connect(_on_list.bind(list_btn, str(r.get("item_code", "")), qty_spin, price_spin))
	row2.add_child(list_btn)
	box.add_child(row2)
	return box

func _render_stock() -> void:
	var rows: Array = await GameState.vendor_stock()
	if rows.is_empty():
		_list.add_child(_muted("Vendor stoku yüklenemedi."))
		return
	var at_market := _at_market()
	var gold := int(GameState.character.get("gold", 0))
	for r in rows:
		if r is Dictionary:
			_list.add_child(_stock_row(r, at_market, gold))

func _stock_row(r: Dictionary, at_market: bool, gold: int) -> HBoxContainer:
	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 8)
	var name_lbl := Label.new()
	name_lbl.text = str(r.get("item_name", ""))
	name_lbl.add_theme_font_size_override("font_size", 15)
	name_lbl.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	row.add_child(name_lbl)
	var qty_spin := SpinBox.new()
	qty_spin.min_value = 1
	qty_spin.max_value = 10
	qty_spin.value = 1
	row.add_child(qty_spin)
	var price := int(r.get("unit_price", 0))
	var btn := Button.new()
	btn.text = "Al 🪙 %d" % price
	if not at_market:
		btn.disabled = true
	elif gold < price:
		btn.text = "🪙 yetersiz"
		btn.disabled = true
	else:
		btn.pressed.connect(_on_vendor_buy.bind(btn, str(r.get("item_code", "")), qty_spin))
	row.add_child(btn)
	return row

func _on_vendor_buy(btn: Button, code: String, qty_spin: SpinBox) -> void:
	btn.disabled = true
	var res: Dictionary = await GameState.vendor_buy(code, int(qty_spin.value))
	_report(res)
	refresh()

func _on_buy(btn: Button, listing_id: int) -> void:
	btn.disabled = true
	var res: Dictionary = await GameState.market_buy(listing_id)
	_report(res)
	refresh()

func _on_cancel(btn: Button, listing_id: int) -> void:
	btn.disabled = true
	var res: Dictionary = await GameState.market_cancel(listing_id)
	_report(res)
	refresh()

func _on_vendor_sell(btn: Button, code: String, qty_spin: SpinBox) -> void:
	btn.disabled = true
	var res: Dictionary = await GameState.vendor_sell(code, int(qty_spin.value))
	_report(res)
	refresh()

func _on_list(btn: Button, code: String, qty_spin: SpinBox, price_spin: SpinBox) -> void:
	btn.disabled = true
	var res: Dictionary = await GameState.market_list(code, int(qty_spin.value), int(price_spin.value))
	_report(res)
	refresh()

func _report(res: Dictionary) -> void:
	if not res.ok and res.body is Dictionary and res.body.has("detail"):
		_info.text = "⚠ " + str(res.body["detail"])

func _muted(text: String) -> Label:
	var l := Label.new()
	l.text = text
	l.add_theme_color_override("font_color", Color(0.6, 0.6, 0.6))
	return l