extends Node2D
## Character select: P1 picks with A/D + J, P2 with arrows + O.
## Roster = whatever folders are under characters/ — same scan as the match.

var roster: Array = []          # [{path, id, name, portrait, color}]
var cursor := [0, 0]
var locked := [false, false]
var cards: Array = []
var cursors_ui: Array = []
var vs_timer := -1

var CARD_W := 220
var CARD_H := 300


func _ready() -> void:
	var bg := ColorRect.new()
	bg.color = Color("#14161c")
	bg.size = Vector2(1280, 720)
	add_child(bg)

	var title := Label.new()
	title.text = "F O I T I N"
	title.add_theme_font_size_override("font_size", 64)
	title.position = Vector2(490, 40)
	add_child(title)
	var sub := Label.new()
	sub.text = "CHOOSE YOUR FIGHTER"
	sub.add_theme_font_size_override("font_size", 24)
	sub.modulate = Color(1, 1, 1, 0.6)
	sub.position = Vector2(520, 120)
	add_child(sub)

	for path in CharacterData.scan_roster():
		var d = JSON.parse_string(FileAccess.get_file_as_string(path + "/manifest.json"))
		var entry := {"path": path, "id": d.get("id", ""), "name": d.get("name", "?"),
				"color": Color(d.get("color", "#888888")),
				"portrait": MoveData.load_texture_any(path + "/portrait.png")}
		roster.append(entry)

	# adaptive grid: shrink cards as the roster grows
	var per_row := 4
	if roster.size() > 16:
		per_row = 9
		CARD_W = 124
		CARD_H = 180
	elif roster.size() > 8:
		per_row = 8
		CARD_W = 140
		CARD_H = 196
	per_row = mini(roster.size(), per_row)
	var gap: int = 40 if roster.size() <= 8 else 14
	var total_w: int = per_row * (CARD_W + gap) - gap
	var x0: float = 640.0 - total_w / 2.0
	for i in roster.size():
		var card := Node2D.new()
		card.position = Vector2(x0 + (i % per_row) * (CARD_W + gap),
				170 + int(i / float(per_row)) * (CARD_H + 56) as float)
		add_child(card)
		var frame := ColorRect.new()
		frame.color = Color("#22252e")
		frame.size = Vector2(CARD_W, CARD_H)
		card.add_child(frame)
		var accent := ColorRect.new()
		accent.color = roster[i].color
		accent.size = Vector2(CARD_W, 8)
		accent.position = Vector2(0, CARD_H - 8)
		card.add_child(accent)
		if roster[i].portrait:
			var spr := Sprite2D.new()
			spr.texture = roster[i].portrait
			spr.centered = false
			var pscale: float = (CARD_W - 24) / 160.0
			spr.scale = Vector2(pscale, pscale)
			spr.position = Vector2(12, 12)
			card.add_child(spr)
		var nm := Label.new()
		nm.text = roster[i].name
		nm.add_theme_font_size_override("font_size", 26 if roster.size() <= 8 else 17)
		nm.position = Vector2(12, CARD_H - 40)
		card.add_child(nm)
		cards.append(card)

	for p in 2:
		var cur := ColorRect.new()
		cur.color = Color("#e8c840") if p == 0 else Color("#40a8e8")
		cur.size = Vector2(CARD_W + 12, 6)
		add_child(cur)
		var tag := Label.new()
		tag.text = "P%d" % (p + 1)
		tag.add_theme_font_size_override("font_size", 20)
		cur.add_child(tag)
		tag.position = Vector2(-2, 8 if p == 0 else -34)
		cursors_ui.append(cur)

	var help := Label.new()
	help.text = "P1: A/D move, J lock in      P2: arrows move, O lock in"
	help.modulate = Color(1, 1, 1, 0.4)
	help.position = Vector2(440, 660)
	add_child(help)
	_place_cursors()


func _place_cursors() -> void:
	for p in 2:
		var card: Node2D = cards[cursor[p]]
		cursors_ui[p].position = card.position + Vector2(-6, CARD_H + 14 if p == 0 else -22)
		cursors_ui[p].modulate.a = 0.5 if locked[p] else 1.0


func _input(event: InputEvent) -> void:
	if not event is InputEventKey or not event.pressed or event.echo:
		return
	if vs_timer >= 0:
		return
	match event.keycode:
		KEY_ESCAPE:
			get_tree().change_scene_to_file("res://engine/scenes/Title.tscn")
			return
		KEY_A: _move(0, -1)
		KEY_D: _move(0, 1)
		KEY_J: _lock(0)
		KEY_LEFT: _move(1, -1)
		KEY_RIGHT: _move(1, 1)
		KEY_O: _lock(1)
	_place_cursors()


func _move(p: int, dir: int) -> void:
	if locked[p]:
		return
	cursor[p] = wrapi(cursor[p] + dir, 0, roster.size())


func _lock(p: int) -> void:
	locked[p] = true
	if locked[0] and locked[1]:
		GameState.p1_pick = roster[cursor[0]].id
		GameState.p2_pick = roster[cursor[1]].id
		var vs := Label.new()
		vs.text = "%s   VS   %s" % [roster[cursor[0]].name, roster[cursor[1]].name]
		vs.add_theme_font_size_override("font_size", 48)
		vs.position = Vector2(400, 580)
		add_child(vs)
		vs_timer = 60


func _physics_process(_d: float) -> void:
	if vs_timer > 0:
		vs_timer -= 1
	elif vs_timer == 0:
		get_tree().change_scene_to_file("res://engine/scenes/Fight.tscn")