extends SceneTree
## Editor-Tests (headless): Karte t_5badf371 — svmap laden/speichern.
## Ausführen: godot --headless --path . --script res://tests/test_editor_svmap.gd
## Exit 0 = alles grün. Läuft OHNE UI (nur SvmapIO/SvmapDocument).

var failures := 0
var checks := 0


func _init() -> void:
	# user:// persistiert über Godot-Läufe — vor UND nach dem Test aufräumen
	# (Lektion aus t_74976e9f: Stale-Reste maskierten sonst Verifikationen).
	_cleanup()
	_run_tests()
	_cleanup()
	if failures == 0:
		print("ALL OK: %d checks" % checks)
		quit(0)
	else:
		print("FAILED: %d/%d checks" % [failures, checks])
		quit(1)


func _cleanup() -> void:
	for path in ["user://test_roundtrip.svmap", "user://test_roundtrip2.svmap"]:
		if FileAccess.file_exists(path):
			DirAccess.remove_absolute(ProjectSettings.globalize_path(path))


func _check(cond: bool, label: String) -> void:
	checks += 1
	if cond:
		print("  ok: %s" % label)
	else:
		failures += 1
		print("  FAIL: %s" % label)


func _errors_contain(errors: Array, needle: String) -> bool:
	for e in errors:
		if str(e).contains(needle):
			return true
	return false


func _run_tests() -> void:
	print("== Neue Map: default-Dokument ==")
	var doc := SvmapDocument.create_new("Testmap", 1024.0, "abend")
	_check(int(doc["format_version"]) == 1, "format_version 1")
	_check(str(doc["info"]["name"]) == "Testmap", "Name übernommen")
	_check(str(doc["weather"]) == "abend", "Wetter übernommen")
	_check((doc["objects"] as Array).is_empty(), "leere Objektliste")
	_check((doc["spawn_zones"]["0"]["points"] as Array).size() == 4, "Team 0: 4 Default-Spawns")
	_check((doc["spawn_zones"]["1"]["points"] as Array).size() == 4, "Team 1: 4 Default-Spawns")
	var terrain: Dictionary = doc["terrain"]
	_check(int(terrain["resolution"]) == 129, "Default-Auflösung 129 (Editor-MVP-Perf-Limit, Karte t_9aba04f1)")
	var raw := Marshalls.base64_to_raw(str(terrain["heightmap_r16_b64"]))
	_check(raw.size() == 129 * 129 * 2, "Höhenfeld-Länge = resolution² × 2")
	var flat := true
	for i in raw.size():
		if raw[i] != 0:
			flat = false
			break
	_check(flat, "Default-Höhenfeld flach (alles 0)")

	print("== Speichern (Validierung vor dem Schreiben) ==")
	var save1 := SvmapIO.save_to_file("user://test_roundtrip.svmap", doc)
	_check(save1["ok"], "save_to_file ok: %s" % str(save1["errors"]))

	print("== Roundtrip: speichern → laden → speichern → byte-identisch ==")
	var load1 := SvmapIO.load_from_file("user://test_roundtrip.svmap")
	_check(load1["ok"], "load_from_file ok: %s" % str(load1["errors"]))
	var doc2: Dictionary = load1["data"]
	_check(str(doc2["info"]["name"]) == "Testmap", "Name im Roundtrip erhalten")
	_check(str(doc2["weather"]) == "abend", "Wetter im Roundtrip erhalten")
	_check((doc2["spawn_zones"]["1"]["points"] as Array).size() == 4, "Spawns im Roundtrip erhalten")
	var save2 := SvmapIO.save_to_file("user://test_roundtrip2.svmap", doc2)
	_check(save2["ok"], "Re-Save ok")
	var text1 := FileAccess.get_file_as_string("user://test_roundtrip.svmap")
	var text2 := FileAccess.get_file_as_string("user://test_roundtrip2.svmap")
	_check(text1 == text2, "Dateien byte-identisch (Prüfsumme stabil über save/load/save)")

	print("== Server-Kompatibilität: Editor-Prüfsumme == Loader-Kanonisierung ==")
	# Der Loader im Match-Server nutzt exakt: kanonisieren → stringify(„  ") →
	# sha256_text. Der Editor muss denselben Hash erzeugen (geprüft an der
	# geladenen Map, die ein checksum-Feld trägt):
	var doc_signed: Dictionary = _deep_copy(doc2)
	SvmapIO.sign_map(doc_signed)
	var payload: Dictionary = SvmapIO._canonicalize(doc_signed)
	payload.erase("checksum")
	var expected: String = JSON.stringify(payload, "  ").sha256_text()
	_check(str(doc_signed["checksum"]["value"]) == expected, "sign_map-Hash = Kanonisierungs-Hash")

	print("== Negative Fälle (Ablehnung mit verständlicher Meldung) ==")
	var res: Dictionary

	res = SvmapIO.parse_and_validate("{{{definitiv kaputt")
	_check(not res["ok"] and _errors_contain(res["errors"], "V2"), "kaputtes JSON → V2")

	res = SvmapIO.parse_and_validate('{"format_version": 2}')
	_check(not res["ok"] and _errors_contain(res["errors"], "V3"), "falsche Version → V3")

	var bad: Dictionary = _deep_copy(doc2)
	bad["weather"] = "sturm"
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V12"), "unbekanntes Wetter → V12")

	bad = _deep_copy(doc2)
	(bad["spawn_zones"]["0"]["points"] as Array)[1]["id"] = "A1"
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V11"), "Spawn-ID-Dublette → V11")

	bad = _deep_copy(doc2)
	(bad["spawn_zones"]["1"]["points"] as Array).resize(3)
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V11"), "zu wenige Spawns → V11")

	bad = _deep_copy(doc2)
	(bad["objects"] as Array).append({"id": "taube_aus_dem_wald", "pos": [0.0, 1.0, 0.0], "rot_y_deg": 0.0, "scale": 1.0})
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V7"), "unbekannte Objekt-ID → V7")

	bad = _deep_copy(doc2)
	(bad["objects"] as Array).append({"id": "crate_wood", "pos": [99999.0, 0.0, 0.0], "rot_y_deg": 0.0, "scale": 1.0})
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V9"), "Objekt außerhalb der Grenzen → V9")

	bad = _deep_copy(doc2)
	bad["terrain"]["resolution"] = 700
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V6"), "Auflösung zu groß → V6")

	bad = _deep_copy(doc2)
	bad["terrain"]["heightmap_r16_b64"] = "AAAA"
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V5"), "Höhenfeld falsche Länge → V5")

	bad = _deep_copy(doc2)
	bad["checksum"]["value"] = "0".repeat(64)
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V13"), "manipulierte Prüfsumme → V13")

	bad = _deep_copy(doc2)
	bad["info"]["author"] = ""
	res = SvmapIO.parse_and_validate(JSON.stringify(bad))
	_check(not res["ok"] and _errors_contain(res["errors"], "V4"), "leerer Autor → V4")

	print("== Poly-Budget (injiziertes Manifest) ==")
	var mega_manifest: Dictionary = {"objects": {"mega": {"poly": 2_000_000, "collision": {"shape": "box", "size": [1, 1, 1]}}}}
	var budget_doc := SvmapDocument.create_new("Budget", 512.0, "mittag")
	(budget_doc["objects"] as Array).append({"id": "mega", "pos": [0.0, 1.0, 0.0], "rot_y_deg": 0.0, "scale": 1.0})
	res = SvmapIO.parse_and_validate(JSON.stringify(budget_doc), mega_manifest)
	_check(not res["ok"] and _errors_contain(res["errors"], "V8"), "Poly-Budget überschritten → V8")

	print("== Poly-Nutzung (Editor-Budgetanzeige) ==")
	var usage_doc := SvmapDocument.create_new("Usage", 512.0, "mittag")
	(usage_doc["objects"] as Array).append({"id": "crate_wood", "pos": [0.0, 0.6, 0.0], "rot_y_deg": 0.0, "scale": 2.0})
	# crate_wood poly=12, scale²=4 → 48
	_check(int(SvmapDocument.poly_usage(usage_doc, SvmapIO._manifest_or({}))) == 48, "poly_usage = poly × scale²")

	# Sentinel: falls ein Script-Error einen Abschnitt abbricht, fehlt dieser
	# Check → kein falsches „ALL OK".
	_check(true, "Alle Testabschnitte liefen bis zum Ende durch")


func _deep_copy(value: Variant) -> Variant:
	return SvmapIO._canonicalize(value)