extends Node2D

var W: float = 960.0
var H: float = 600.0

# Cockpit palette
const COL_BG       := Color(0.0,  0.04, 0.02, 0.90)
const COL_PRIMARY  := Color(0.0,  1.0,  0.533, 1.0)   # phosphor green
const COL_ACCENT   := Color(0.27, 1.0,  0.8,   1.0)
const COL_DIM      := Color(0.0,  0.27, 0.13,  0.6)   # lines / brackets only
const COL_TEXT     := Color(0.3,  0.68, 0.46,  0.88)  # readable secondary text
const COL_P2       := Color(0.27, 1.0,  0.67,  1.0)
const COL_OVERLAY  := Color(0.0,  0.0,  0.04,  0.78)

var is_p2_mode: bool = false
var selected: int = 0
var ships: Array = []
var blink_phase: float = 0.0
var enter_blink: bool = true
var enter_timer: float = 0.0

func start_select(p2_mode: bool, start_sel: int, ship_data: Array) -> void:
	is_p2_mode = p2_mode
	selected = start_sel
	ships = ship_data
	visible = true
	blink_phase = 0.0

func set_selection(idx: int) -> void:
	selected = idx
	queue_redraw()

func _process(delta: float) -> void:
	blink_phase += delta
	enter_timer += delta
	if enter_timer >= 0.5:
		enter_timer = 0.0
		enter_blink = not enter_blink
	queue_redraw()

func _draw() -> void:
	var vs: Vector2 = get_viewport_rect().size
	W = vs.x; H = vs.y
	# Background overlay so live simulation shows through
	draw_rect(get_viewport_rect(), COL_OVERLAY)

	# ── Header bar ───────────────────────────────────────────────────────────
	draw_rect(Rect2(0, 0, W, 52.0), Color(0.0, 0.04, 0.02, 0.92))
	draw_line(Vector2(0, 52), Vector2(W, 52), COL_DIM, 1.0)

	var header_col := COL_PRIMARY if not is_p2_mode else COL_P2
	_draw_text_centered(Tr.t("select_header"), W * 0.5, 14.0, 10, COL_TEXT)
	var sub := Tr.t("select_pilot1") if not is_p2_mode else Tr.t("select_pilot2")
	_draw_text_centered(sub, W * 0.5, 30.0, 13, header_col)

	# Outer corner brackets
	_draw_corner_brackets(8.0, 8.0, W - 8.0, H - 8.0, COL_DIM, 16.0)

	# ── Ship boxes ───────────────────────────────────────────────────────────
	# 2×2 Grid Layout (supports 4 ships, falls back for 3)
	var n := ships.size()
	var cols: int = 2 if n >= 4 else min(n, 3)
	var box_w := 220.0; var box_h := 180.0
	if cols == 3:
		box_w = 210.0; box_h = 220.0
	var row_h: float = box_h + 16.0
	var col_space: float = (W - box_w * cols) / float(cols + 1)
	var grid_start_y: float = 72.0
	for i in n:
		var col_i: int = i % cols
		var row_i: int = int(i / cols)
		var bx: float = col_space + col_i * (box_w + col_space)
		var by: float = grid_start_y + row_i * row_h
		var is_sel := i == selected
		var pulse := 0.5 + 0.5 * sin(blink_phase * 3.0)

		# Box background
		draw_rect(Rect2(bx, by, box_w, box_h), Color(0.0, 0.04, 0.02, 0.72))

		# Corner L-brackets instead of full border
		var bracket_col: Color
		if is_sel:
			bracket_col = Color(COL_ACCENT.r, COL_ACCENT.g, COL_ACCENT.b, 0.6 + 0.4 * pulse)
		else:
			bracket_col = COL_DIM
		_draw_corner_brackets(bx, by, bx + box_w, by + box_h, bracket_col, 16.0)

		# Ship preview
		var cx := bx + box_w * 0.5
		var cy := by + box_h * 0.42
		var preview_heading := blink_phase * 0.6 if is_sel else -PI * 0.5
		_draw_ship_preview(cx, cy, preview_heading, ships[i])

		# Ship name
		var name_col := COL_ACCENT if is_sel else COL_TEXT
		_draw_text_centered(ships[i]["name"], cx, by + box_h - 42.0, 12, name_col)

		# Ship identifier or boost hint
		var sub_str: String
		match ships[i]["id"]:
			"classic": sub_str = "1 SHIELD  ·  BALANCED"
			"inferno": sub_str = "SPEED+  ·  RAM DAMAGE"
			"aurora":  sub_str = "2 SHIELDS  ·  BH RESIST"
			"titan":   sub_str = "[SHIFT] BOOST"
			_:         sub_str = ships[i]["id"].to_upper()
		_draw_text_centered(sub_str, cx, by + box_h - 24.0, 8,
			Color(COL_TEXT.r, COL_TEXT.g, COL_TEXT.b, 0.85))

	# ── Footer ───────────────────────────────────────────────────────────────
	draw_rect(Rect2(0, H - 48.0, W, 48.0), Color(0.0, 0.04, 0.02, 0.92))
	draw_line(Vector2(0, H - 48.0), Vector2(W, H - 48.0), COL_DIM, 1.0)

	_draw_text_centered(Tr.hint("select_choose"), W * 0.5, H - 44.0, 9, COL_TEXT)

	if not is_p2_mode:
		if enter_blink:
			_draw_text_centered(Tr.hint("select_confirm"), W * 0.5, H - 26.0, 11, COL_PRIMARY)
	else:
		_draw_text_centered(Tr.hint("select_join"), W * 0.3, H - 26.0, 10,
			COL_P2 if enter_blink else COL_DIM)
		_draw_text_centered(Tr.hint("select_solo"), W * 0.7, H - 26.0, 10,
			COL_PRIMARY if enter_blink else COL_DIM)

# ── Drawing helpers ───────────────────────────────────────────────────────────

func _draw_corner_brackets(x1: float, y1: float, x2: float, y2: float,
		col: Color, arm: float) -> void:
	# Top-left
	draw_line(Vector2(x1, y1), Vector2(x1 + arm, y1), col, 1.5)
	draw_line(Vector2(x1, y1), Vector2(x1, y1 + arm), col, 1.5)
	# Top-right
	draw_line(Vector2(x2, y1), Vector2(x2 - arm, y1), col, 1.5)
	draw_line(Vector2(x2, y1), Vector2(x2, y1 + arm), col, 1.5)
	# Bottom-left
	draw_line(Vector2(x1, y2), Vector2(x1 + arm, y2), col, 1.5)
	draw_line(Vector2(x1, y2), Vector2(x1, y2 - arm), col, 1.5)
	# Bottom-right
	draw_line(Vector2(x2, y2), Vector2(x2 - arm, y2), col, 1.5)
	draw_line(Vector2(x2, y2), Vector2(x2, y2 - arm), col, 1.5)

func _draw_ship_preview(cx: float, cy: float, heading: float, ship: Dictionary) -> void:
	var cos_h := cos(heading); var sin_h := sin(heading)
	var preview_scale := 5.5
	var hull_pixels := [
		[3, 0, "nose"],  [2, -1, "mid"],  [2, 1, "mid"],
		[1, 0, "dim"],   [0, -2, "accent"],[0, 2, "accent"],
		[0, 0, "bright"],[-1,-1, "dim"],  [-1, 1, "dim"],
		[-2,-2, "shadow"],[-2, 2, "shadow"],[-2, 0, "edge"],
	]
	for px_data in hull_pixels:
		var lx: float = px_data[0] * preview_scale
		var ly: float = px_data[1] * preview_scale
		var col: Color = ship.get(px_data[2], Color.WHITE)
		var rx := cx + lx * cos_h - ly * sin_h
		var ry := cy + lx * sin_h + ly * cos_h
		draw_rect(Rect2(rx - 2, ry - 2, 5, 5), col)

func _draw_text_centered(text: String, x: float, y: float, font_size: int, col: Color) -> void:
	var font := ThemeDB.fallback_font
	var tw := font.get_string_size(text, HORIZONTAL_ALIGNMENT_LEFT, -1, font_size).x
	draw_string(font, Vector2(x - tw * 0.5, y + font_size), text,
		HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, col)

func _draw_text(text: String, x: float, y: float, font_size: int, col: Color) -> void:
	var font := ThemeDB.fallback_font
	draw_string(font, Vector2(x, y + font_size), text,
		HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, col)