extends CanvasLayer
## Şehir haritası — bir şehir location'ının içi. Prosedürel placeholder zemin
## (bina blokları + yollar) üzerinde vendor NPC pinleri. Pine tıkla → dükkan (VendorShop).
## "🗺 Dünya Haritası" ile kapanır. world.gd oluşturur; açıkken world input'u durur.
## Node adı "CityMap".

var _root: Control
var _canvas: Control
var _pins_box: Control
var _title: Label
var _shop: PanelContainer
var _vendors: Array = []          # {npc_id,name,role}
var _pin_pos: Array = []          # Vector2 ekran koordinatları (canvas _draw kullanır)
var _location_name := ""

func _ready() -> void:
	name = "CityMap"
	layer = 4
	visible = false
	_build_ui()

func is_open() -> bool:
	return visible

func _build_ui() -> void:
	_root = Control.new()
	_root.set_anchors_preset(Control.PRESET_FULL_RECT)
	_root.mouse_filter = Control.MOUSE_FILTER_STOP
	add_child(_root)

	# Prosedürel zemin (buildings + yollar) — pin konumlarına göre çizilir
	_canvas = CityCanvas.new()
	_canvas.set_anchors_preset(Control.PRESET_FULL_RECT)
	_canvas.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_root.add_child(_canvas)

	# Pin container (butonlar mutlak konumlu)
	_pins_box = Control.new()
	_pins_box.set_anchors_preset(Control.PRESET_FULL_RECT)
	_pins_box.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_root.add_child(_pins_box)

	# Üst bar
	var bar := PanelContainer.new()
	bar.set_anchors_preset(Control.PRESET_TOP_WIDE)
	bar.offset_bottom = 64
	var sb := StyleBoxFlat.new()
	sb.bg_color = Color(0.08, 0.09, 0.12, 0.95)
	bar.add_theme_stylebox_override("panel", sb)
	_root.add_child(bar)
	var hb := HBoxContainer.new()
	hb.add_theme_constant_override("separation", 10)
	bar.add_child(hb)
	var m := MarginContainer.new()
	m.add_theme_constant_override("margin_left", 12)
	m.add_theme_constant_override("margin_right", 12)
	m.add_theme_constant_override("margin_top", 8)
	m.add_theme_constant_override("margin_bottom", 8)
	m.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	hb.add_child(m)
	_title = Label.new()
	_title.add_theme_font_size_override("font_size", 18)
	m.add_child(_title)
	var back := Button.new()
	back.text = "🗺 Dünya Haritası"
	back.pressed.connect(_close)
	hb.add_child(back)

	# Satıcı dükkanı (alt-sheet) — pinlerin üstünde
	_shop = preload("res://scripts/vendor_shop.gd").new()
	add_child(_shop)

func open() -> void:
	visible = true
	_title.text = "🏙 Yükleniyor…"
	var res: Dictionary = await GameState.city_vendors()
	if not res.ok or not (res.body is Dictionary):
		_title.text = "🏙 Şehir yüklenemedi"
		_vendors = []
	else:
		_location_name = str(res.body.get("location_name", "Şehir"))
		_vendors = res.body.get("vendors", [])
		_title.text = "🏙 %s" % _location_name
	_layout_pins()

func _close() -> void:
	_shop.visible = false
	visible = false

func _layout_pins() -> void:
	for c in _pins_box.get_children():
		c.queue_free()
	_pin_pos.clear()
	var size := get_viewport().get_visible_rect().size
	var n := _vendors.size()
	if n == 0:
		_canvas.queue_redraw()
		return
	# Zikzak yerleşim: üst bar altından alt nav üstüne kadar dağıt
	var top := 110.0
	var bottom := size.y - 140.0
	for i in range(n):
		var t := float(i) / float(maxi(1, n - 1)) if n > 1 else 0.5
		var y := lerpf(top, bottom, t)
		var x := size.x * (0.30 if i % 2 == 0 else 0.68)
		var pos := Vector2(x, y)
		_pin_pos.append(pos)
		_add_pin(_vendors[i], pos)
	_canvas.pins = _pin_pos
	_canvas.queue_redraw()

func _add_pin(v: Dictionary, pos: Vector2) -> void:
	var btn := Button.new()
	var role := str(v.get("role", ""))
	btn.text = "🏪\n%s" % str(v.get("name", ""))
	btn.tooltip_text = role
	btn.add_theme_font_size_override("font_size", 13)
	btn.custom_minimum_size = Vector2(150, 64)
	var sb := StyleBoxFlat.new()
	sb.bg_color = Color(0.18, 0.15, 0.10, 0.96)
	sb.border_color = Color(0.85, 0.7, 0.35)
	sb.set_border_width_all(2)
	sb.set_corner_radius_all(8)
	btn.add_theme_stylebox_override("normal", sb)
	_pins_box.add_child(btn)
	btn.size = btn.custom_minimum_size
	btn.position = pos - btn.custom_minimum_size / 2.0
	var npc_id := int(v.get("npc_id", 0))
	var vname := str(v.get("name", ""))
	btn.pressed.connect(func() -> void: _shop.open(npc_id, vname))


## Prosedürel şehir zemini — zemin, yollar, pin altı bina blokları.
class CityCanvas extends Control:
	var pins: Array = []
	func _draw() -> void:
		var s := size
		# Zemin (toprak/çim degrade hissi)
		draw_rect(Rect2(Vector2.ZERO, s), Color(0.16, 0.18, 0.13))
		draw_rect(Rect2(Vector2(0, s.y * 0.5), Vector2(s.x, s.y * 0.5)), Color(0.14, 0.15, 0.11))
		# Ana yol (dikey)
		var road_col := Color(0.30, 0.27, 0.22)
		draw_rect(Rect2(Vector2(s.x * 0.5 - 22, 90), Vector2(44, s.y - 220)), road_col)
		# Pin altı bina blokları
		for p in pins:
			var bp: Vector2 = p
			draw_line(Vector2(s.x * 0.5, bp.y), bp, road_col, 14.0)
			var bsize := Vector2(120, 90)
			var top_left := bp - Vector2(bsize.x / 2.0, bsize.y + 20)
			draw_rect(Rect2(top_left, bsize), Color(0.28, 0.24, 0.20))
			draw_rect(Rect2(top_left, bsize), Color(0.5, 0.42, 0.30), false, 2.0)
			var roof := PackedVector2Array([
				top_left + Vector2(-8, 0), top_left + Vector2(bsize.x + 8, 0),
				top_left + Vector2(bsize.x / 2.0, -34)])
			draw_colored_polygon(roof, Color(0.45, 0.22, 0.18))