extends Node
## Real Godot renders. Use model_gallery.tscn -- --capture after GLB import.

const STAGE: Script = preload("res://tools/model_gallery_stage.gd")
const OUT_DIR: String = "res://docs/screenshots/phase4"
const GROUPS: Array[Dictionary] = [
	{"key": "glutpakt", "title": "GLUTPAKT", "subtitle": "Basalt · Orangeglut · Messing"},
	{"key": "nietenkonvent", "title": "NIETENKONVENT", "subtitle": "Petrol · Ocker · Stahl · Keramik"},
	{"key": "nebelchor", "title": "NEBELCHOR", "subtitle": "Indigo · Violett · Mint · Nebel"},
	{"key": "wurzelbund", "title": "WURZELBUND", "subtitle": "Borke · Moos · Blatt · Blüte"},
	{"key": "neutral", "title": "SÖLDNER & ARBEITER", "subtitle": "Fünf Send-Einheiten und der Funkenleser"},
	{"key": "rift", "title": "RISSKREATUREN", "subtitle": "Schalen · Knochen · Rissglut"},
	{"key": "environment", "title": "SPIELFELD & SAUMKERNE", "subtitle": "Modulares Lane-Segment und zwei Teamkerne"}
]

var _assets: Array[Dictionary] = []
var _sheet: Control
var _views: Array[Dictionary] = []


func _ready() -> void:
	var manifest: String = "res://assets/phase4_manifest.json"
	if not FileAccess.file_exists(manifest):
		_fail("Phase 4 manifest is missing; export all models first.")
		return
	var data: Variant = JSON.parse_string(FileAccess.get_file_as_string(manifest))
	if not data is Dictionary:
		_fail("Invalid Phase 4 manifest.")
		return
	for value: Variant in data.get("assets", []):
		if value is Dictionary:
			_assets.append(value)
	if _assets.size() != 59:
		_fail("Expected 59 exported models, found %d." % _assets.size())
		return
	for asset: Dictionary in _assets:
		if not ResourceLoader.exists(str(asset.get("resource_path", ""))):
			_fail("Model has not been imported: " + str(asset.get("id", "?")))
			return
	DirAccess.make_dir_recursive_absolute(OUT_DIR)
	get_window().size = Vector2i(1600, 960)
	get_tree().create_timer(90.0).timeout.connect(func() -> void: _fail("Capture timed out."))
	for group: Dictionary in GROUPS:
		if not _build_sheet(group):
			return
		await get_tree().process_frame
		await get_tree().process_frame
		await RenderingServer.frame_post_draw
		await get_tree().create_timer(0.25).timeout
		var image: Image = get_viewport().get_texture().get_image()
		var output: String = OUT_DIR + "/models-" + str(group["key"]) + ".png"
		var error: Error = image.save_png(output)
		if error != OK:
			_fail("Could not save " + output)
			return
		print("CAPTURED ", output, " (", image.get_width(), "×", image.get_height(), ")")
		_sheet.free()
		_views.clear()
	print("PASS: captured all 59 models in seven real Godot contact sheets.")
	get_tree().quit(0)


func _build_sheet(group: Dictionary) -> bool:
	var selected: Array[Dictionary] = []
	var key: String = str(group["key"])
	for asset: Dictionary in _assets:
		var matches: bool = str(asset.get("faction", "")) == key
		if key == "environment":
			matches = str(asset.get("role", "")) in ["core", "lane"]
		if matches:
			selected.append(asset)
	_sheet = Control.new()
	_sheet.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	add_child(_sheet)
	var background: ColorRect = ColorRect.new()
	background.color = Color("10141b")
	background.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	_sheet.add_child(background)
	var margin: MarginContainer = MarginContainer.new()
	margin.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	for edge: String in ["left", "right"]:
		margin.add_theme_constant_override("margin_" + edge, 28)
	for edge: String in ["top", "bottom"]:
		margin.add_theme_constant_override("margin_" + edge, 22)
	_sheet.add_child(margin)
	var layout: VBoxContainer = VBoxContainer.new()
	layout.add_theme_constant_override("separation", 12)
	margin.add_child(layout)
	layout.add_child(_label("SAUMWACHT   /   " + str(group["title"]), 30, Color("ddc898")))
	layout.add_child(_label("Phase 4  ·  " + str(group["subtitle"]) + "  ·  %d Modelle" % selected.size(), 17, Color("abb5c5")))
	var grid: GridContainer = GridContainer.new()
	grid.columns = 3 if selected.size() <= 6 else 5
	grid.size_flags_vertical = Control.SIZE_EXPAND_FILL
	grid.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	grid.add_theme_constant_override("h_separation", 12)
	grid.add_theme_constant_override("v_separation", 16)
	layout.add_child(grid)
	for asset: Dictionary in selected:
		var card: VBoxContainer = VBoxContainer.new()
		card.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		card.size_flags_vertical = Control.SIZE_EXPAND_FILL
		card.add_theme_constant_override("separation", 5)
		grid.add_child(card)
		var view: Dictionary = STAGE.create(card, Vector2(270, 230))
		_views.append(view)
		if not STAGE.show_asset(view, asset):
			_fail("Capture failed to load " + str(asset["id"]))
			return false
		STAGE.add_id_tag(view, str(asset["id"]))
		var title: Label = _label(str(asset["name"]), 19, Color("eee6d8"))
		title.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
		card.add_child(title)
		var detail: Label = _label("%s  ·  %d Dreiecke" % [str(asset["id"]).to_upper(), int(asset.get("triangles", 0))], 14, Color("a1acbd"))
		detail.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
		card.add_child(detail)
	layout.add_child(_label("Originale parametrisierte Modelle  ·  Einheitliche Studiobeleuchtung  ·  Vorschau proportional auf gemeinsame Bühne eingepasst", 14, Color("8491a3")))
	return true


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


func _fail(message: String) -> void:
	printerr("FAIL: ", message)
	get_tree().quit(1)