extends Node
## Direct icon/model comparisons; original PNGs stay unchanged.

const STAGE: Script = preload("res://tools/model_gallery_stage.gd")
var _sheet: Control

func _ready() -> void:
	get_tree().create_timer(90).timeout.connect(func(): get_tree().quit(1))
	var faction: String = "glutpakt"
	for arg: String in OS.get_cmdline_user_args():
		if arg.begins_with("--faction="):
			faction = arg.trim_prefix("--faction=")
	var data: Dictionary = JSON.parse_string(FileAccess.get_file_as_string("res://assets/phase4_manifest.json"))
	var icons: Dictionary = JSON.parse_string(FileAccess.get_file_as_string("res://assets/phase3_manifest.json"))
	var paths: Dictionary = {}
	for asset: Dictionary in icons["assets"]:
		paths[str(asset["id"])] = str(asset["resource_path"])
	paths["worker"] = paths.get("worker_funkenleser", "")
	var selected: Array[Dictionary] = []
	for asset: Dictionary in data["assets"]:
		if str(asset["faction"]) == faction and paths.has(str(asset["id"])):
			selected.append(asset)
	get_window().size = Vector2i(1600, 960)
	for start: int in range(0, selected.size(), 2):
		_sheet = Control.new()
		_sheet.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
		add_child(_sheet)
		var backdrop: ColorRect = ColorRect.new()
		backdrop.color = Color("10141b")
		backdrop.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
		_sheet.add_child(backdrop)
		var margin: MarginContainer = MarginContainer.new()
		margin.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
		for edge: String in ["left", "top", "right", "bottom"]:
			margin.add_theme_constant_override("margin_" + edge, 24)
		_sheet.add_child(margin)
		var layout: VBoxContainer = VBoxContainer.new()
		layout.add_theme_constant_override("separation", 16)
		margin.add_child(layout)
		layout.add_child(_label("SAUMWACHT  /  " + faction.to_upper(), 29, Color("ddc898")))
		layout.add_child(_label("Bildreferenz und überarbeitetes 3D-Modell · Gleiche Einheit, direkte Gegenüberstellung", 18, Color("adb6c5")))
		var row: HBoxContainer = HBoxContainer.new()
		row.size_flags_vertical = Control.SIZE_EXPAND_FILL
		row.add_theme_constant_override("separation", 12)
		layout.add_child(row)
		for index: int in range(start, mini(start + 2, selected.size())):
			var asset: Dictionary = selected[index]
			for reference: bool in [true, false]:
				var card: VBoxContainer = VBoxContainer.new()
				card.size_flags_horizontal = Control.SIZE_EXPAND_FILL
				row.add_child(card)
				card.add_child(_label("ICON · PHASE 3" if reference else "3D-MODELL", 16, Color("aab3c2")))
				if reference:
					var icon: TextureRect = TextureRect.new()
					# Compare against native PNG pixels, not the 256px gameplay import.
					var source_image: Image = Image.load_from_file(str(paths[str(asset["id"])]))
					icon.texture = ImageTexture.create_from_image(source_image)
					icon.expand_mode = TextureRect.EXPAND_IGNORE_SIZE
					icon.stretch_mode = TextureRect.STRETCH_KEEP_ASPECT_CENTERED
					icon.custom_minimum_size.x = 350
					icon.size_flags_vertical = Control.SIZE_EXPAND_FILL
					card.add_child(icon)
				else:
					var view: Dictionary = STAGE.create(card, Vector2(350, 450))
					STAGE.show_asset(view, asset)
					(view["camera"] as Camera3D).size = 3.5
				card.add_child(_label(str(asset["id"]).to_upper() + " · " + str(asset["name"]), 19, Color("eee6d8")))
				card.add_child(_label("Originalillustration" if reference else str(int(asset["triangles"])) + " Dreiecke · GLB", 15, Color("9ca9bc")))
		layout.add_child(_label("3D-Darstellung aus Godot · Modellierte Formdetails und PBR-Materialien · Bearbeitbare Blender-Quellen", 14, Color("8491a3")))
		await get_tree().process_frame
		await get_tree().process_frame
		await RenderingServer.frame_post_draw
		await get_tree().create_timer(0.2).timeout
		var output: String = "res://docs/screenshots/phase4/reference-" + str(selected[start]["id"]) + ".png"
		var error: Error = get_viewport().get_texture().get_image().save_png(output)
		if error != OK:
			printerr("Reference screenshot failed: ", output)
			get_tree().quit(1)
			return
		print("REFERENCE_CAPTURED ", output)
		_sheet.free()
	get_tree().quit(0)

func _label(text: String, size: int, color: Color) -> Label:
	var label: Label = Label.new()
	label.text = text
	label.add_theme_font_size_override("font_size", size)
	label.add_theme_color_override("font_color", color)
	return label