extends SceneTree
## Exports a resource pack and checks that the files the game reads at runtime
## via raw FileAccess (not as Godot resources) are actually inside it.
##
## `export_filter="all_resources"` packs scenes/scripts/imported assets but
## NOT arbitrary files like assets/avatars/catalog.json -- which the avatar
## system opens with FileAccess.open(). Missing it means the game runs fine
## from source but the exported .exe shows a bare capsule instead of an
## avatar. This is the guard for that class of bug.
##
## Run: godot --headless --path . --script res://scripts/verify_export_contents.gd

const PACK_PATH := "res://.export_check.pck"

## Files that MUST be in the pack for the game to work, that aren't Godot
## resources (so they only get packed via export_presets include_filter).
const REQUIRED := [
	"res://assets/avatars/catalog.json",
	"res://assets/editor/object_catalog.json",
]

## A resource we know should be there, as a sanity check that the pack loaded.
const SANITY := "res://scenes/game.tscn"


func _initialize() -> void:
	var abs_pack := ProjectSettings.globalize_path(PACK_PATH)

	var export := OS.execute(_godot_bin(), [
		"--headless", "--path", ProjectSettings.globalize_path("res://"),
		"--export-pack", "Linux", abs_pack,
	], [], true)
	if not FileAccess.file_exists(PACK_PATH):
		_fail("export-pack produced no file:\n%s" % export)

	if not ProjectSettings.load_resource_pack(PACK_PATH, false):
		_fail("could not load the exported pack back")

	if not FileAccess.file_exists(SANITY):
		_fail("pack sanity check failed -- %s not found (pack may not have loaded)" % SANITY)

	var missing := []
	for f in REQUIRED:
		if not FileAccess.file_exists(f):
			missing.append(f)

	DirAccess.remove_absolute(abs_pack)

	if missing.is_empty():
		print("=== SMOKE RESULT: PASS === (required non-resource files are in the export)")
		quit(0)
	else:
		print("=== SMOKE RESULT: FAIL ===")
		for f in missing:
			printerr("  MISSING from export: ", f,
				"  -- add its glob to export_presets.cfg include_filter")
		quit(1)


func _godot_bin() -> String:
	return OS.get_executable_path()


func _fail(msg: String) -> void:
	printerr(msg)
	print("=== SMOKE RESULT: FAIL ===")
	quit(1)