extends Control
## The shop. Pick a part, read its lie, hand over the bucks.
## Which car you're outfitting comes in via Garage.ui_stats_path (set by the menu).

var car_id := ""
var car_name := ""
var list: ItemList
var bucks_label: Label
var desc_label: Label
var buy_btn: Button
var entries: Array = []   # row -> {"kind": "part"|"tool"|"tune"|"header", "id": ...}

func _ready() -> void:
	car_id = Garage.car_id_of(Garage.ui_stats_path)
	var st: CarStats = load(Garage.ui_stats_path)
	car_name = st.display_name if st else car_id

	var bg := ColorRect.new()
	bg.color = Color(0.07, 0.06, 0.09)
	bg.set_anchors_preset(Control.PRESET_FULL_RECT)
	add_child(bg)

	var box := VBoxContainer.new()
	box.set_anchors_preset(Control.PRESET_FULL_RECT)
	box.offset_left = 60
	box.offset_top = 40
	box.offset_right = -60
	box.offset_bottom = -40
	box.add_theme_constant_override("separation", 14)
	add_child(box)

	var title := Label.new()
	title.text = "THE GARAGE  --  %s" % car_name
	title.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	title.add_theme_font_size_override("font_size", 40)
	title.add_theme_color_override("font_color", Color(1, 0.82, 0.35))
	box.add_child(title)

	bucks_label = Label.new()
	bucks_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	bucks_label.add_theme_font_size_override("font_size", 26)
	box.add_child(bucks_label)

	list = ItemList.new()
	list.size_flags_vertical = Control.SIZE_EXPAND_FILL
	list.add_theme_font_size_override("font_size", 22)
	list.item_selected.connect(_on_select)
	box.add_child(list)

	desc_label = Label.new()
	desc_label.add_theme_font_size_override("font_size", 20)
	desc_label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	box.add_child(desc_label)

	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 20)
	box.add_child(row)
	buy_btn = Button.new()
	buy_btn.text = "BUY"
	buy_btn.add_theme_font_size_override("font_size", 28)
	buy_btn.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	buy_btn.pressed.connect(_on_buy)
	row.add_child(buy_btn)
	var back := Button.new()
	back.text = "BACK"
	back.add_theme_font_size_override("font_size", 28)
	back.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	back.pressed.connect(func() -> void:
		get_tree().change_scene_to_file("res://src/main.tscn"))
	row.add_child(back)

	_refresh()
	for i in list.item_count:   # row 0 is a section header now
		if list.is_item_selectable(i):
			list.select(i)
			_on_select(i)
			break

func _header(text: String) -> void:
	var i := list.add_item(text)
	list.set_item_selectable(i, false)
	list.set_item_custom_fg_color(i, Color(1, 0.82, 0.35))
	entries.append({"kind": "header"})

func _refresh() -> void:
	var keep := list.get_selected_items()
	list.clear()
	entries.clear()
	bucks_label.text = "BUCKS: $%d   |   SHED REP %d" % [Garage.bucks(), Garage.rep()]
	var flt := Garage.faults(car_id)
	if not flt.is_empty():
		_header("--- IT'S BROKEN (fix it or pay up) ---")
		for id in flt:
			var c: Dictionary = Garage.FAULTS[id]
			list.add_item("%-28s %s" % ["FIX: " + c["name"], "DIY IN THE SHED"])
			entries.append({"kind": "fault", "id": id})
			list.add_item("%-28s $%d" % ["  ...or pay someone", c["shop"]])
			entries.append({"kind": "shopfix", "id": id})
	_header("--- BOLT-ON PARTS (this car) ---")
	for id in Garage.CATALOGUE:
		var c: Dictionary = Garage.CATALOGUE[id]
		var tag := "[FITTED]" if Garage.has(car_id, id) else "$%d" % c["price"]
		list.add_item("%-28s %s" % [c["name"], tag])
		entries.append({"kind": "part", "id": id})
	_header("--- THE SHED (tools; buy again to upgrade the tier) ---")
	for id in Garage.TOOLS:
		var c: Dictionary = Garage.TOOLS[id]
		var tier := Garage.tool_tier(id)
		var shown: String = c["tiers"][maxi(tier - 1, 0)]["name"]
		var tag: String
		if tier == 0:
			tag = "$%d" % int(c["price"])
		elif tier < 3:
			tag = "[T%d] UP $%d" % [tier, Garage.tool_upgrade_price(id)]
		else:
			tag = "[T3 MAXED]"
		list.add_item("%-28s %s" % [shown, tag])
		entries.append({"kind": "tool", "id": id})
	_header("--- TUNE-UPS (this car, needs the tool) ---")
	for id in Garage.TUNES:
		var c: Dictionary = Garage.TUNES[id]
		var tag: String
		if Garage.has_tune(car_id, id):
			tag = "[DONE]"
		elif not Garage.has_tool(c["tool"]):
			tag = "[NEEDS %s]" % Garage.TOOLS[c["tool"]]["name"]
		else:
			tag = "$%d" % c["price"]
		list.add_item("%-28s %s" % [c["name"], tag])
		entries.append({"kind": "tune", "id": id})
	if not keep.is_empty() and keep[0] < list.item_count and list.is_item_selectable(keep[0]):
		list.select(keep[0])

func _entry_info(i: int) -> Dictionary:
	var e: Dictionary = entries[i]
	match e.get("kind"):
		"fault":
			var c: Dictionary = Garage.FAULTS[e["id"]]
			return {"desc": c["desc"] + "  (free, uses your tools and your dignity)",
				"price": 0, "done": false, "locked": false}
		"shopfix":
			var c: Dictionary = Garage.FAULTS[e["id"]]
			return {"desc": "Someone else's problem for $%d. No questions, no bolts left over." % c["shop"],
				"price": c["shop"], "done": false, "locked": false}
		"part":
			var c: Dictionary = Garage.CATALOGUE[e["id"]]
			return {"desc": c["desc"], "price": c["price"],
				"done": Garage.has(car_id, e["id"]), "locked": false}
		"tool":
			var c: Dictionary = Garage.TOOLS[e["id"]]
			var tier := Garage.tool_tier(e["id"])
			var d: String = c["tiers"][mini(tier, 2)]["desc"]
			if tier > 0 and tier < 3:
				d = "NEXT: " + String(c["tiers"][tier]["name"]) + " -- " + d
			return {"desc": d, "price": Garage.tool_upgrade_price(e["id"]),
				"done": tier >= 3, "locked": false}
		"tune":
			var c: Dictionary = Garage.TUNES[e["id"]]
			return {"desc": c["desc"], "price": c["price"],
				"done": Garage.has_tune(car_id, e["id"]),
				"locked": not Garage.has_tool(c["tool"])}
	return {}

func _on_select(i: int) -> void:
	var info := _entry_info(i)
	if info.is_empty():
		return
	desc_label.text = info["desc"]
	if info["done"]:
		buy_btn.text = "DONE"
		buy_btn.disabled = true
	elif info["locked"]:
		buy_btn.text = "LOCKED (buy the tool)"
		buy_btn.disabled = true
	else:
		buy_btn.text = "BUY  ($%d)" % int(info["price"]) if int(info["price"]) > 0 \
			else "GET UNDER IT (free)"
		buy_btn.disabled = Garage.bucks() < int(info["price"])

func _on_buy() -> void:
	var sel := list.get_selected_items()
	if sel.is_empty():
		return
	var e: Dictionary = entries[sel[0]]
	var ok := false
	match e.get("kind"):
		"part": ok = Garage.buy(car_id, e["id"])
		"tool": ok = Garage.buy_tool(e["id"])
		"tune": ok = Garage.buy_tune(car_id, e["id"])
		"shopfix": ok = Garage.shop_fix(car_id, e["id"])
		"fault":
			# DIY: off to the wrench minigame; it clears the fault on completion
			Garage.ui_fault = e["id"]
			get_tree().change_scene_to_file("res://src/%s.tscn"
				% String(Garage.FAULTS[e["id"]].get("scene", "wrench")))
			return
	if ok:
		Sfx.shot_2d("clunk")
	_refresh()
	if sel[0] < list.item_count:
		_on_select(sel[0])

func _input(event: InputEvent) -> void:
	if event.is_action_pressed("ui_cancel"):
		get_tree().change_scene_to_file("res://src/main.tscn")