extends "res://tests/special/peeping_room_fixture.gd"

func _run() -> void:
	var f := fixture()
	var runtime: Variant = f[&"runtime"]
	var empty: Dictionary = runtime.create_snapshot()
	expect(not empty[&"systems"][&"runtime"].has(&"special_peeping_rooms"), "empty service does not alter existing snapshot keys")
	expect(runtime.restore_snapshot(empty) and var_to_bytes(empty) == var_to_bytes(runtime.create_snapshot()), "pre-extension v14 absence exact roundtrip")
	var legacy := empty.duplicate(true)
	legacy[&"systems"][&"runtime"][&"runtime_schema_version"] = 13
	legacy[&"systems"][&"runtime"].erase(&"auto_purchase_plans")
	expect(runtime.restore_snapshot(legacy) and runtime.peeping_room_service.is_empty(), "genuine v13 absent section migrates empty")
	expect(runtime.restore_snapshot(empty), "restore canonical baseline before controlled room")
	var room := place(f)
	enable_fixture(f, room)
	expect(runtime.peeping_room_service.controlled_fixture_record_evidence(room, &"fixture.save", f[&"clock"].absolute_minute)[&"ok"], "controlled evidence before mid-state save")
	expect(runtime.submit_command(&"peeping_room_relink", {&"room_id": room, &"target_instance_id": f[&"target"]}, &"player", room, 0, f[&"clock"].absolute_minute + 1).is_success(), "future explicit relink remains pending at checkpoint")
	var snapshot: Dictionary = runtime.create_snapshot()
	expect(snapshot[&"systems"][&"runtime"][&"runtime_schema_version"] == 14, "extension never bumps Runtime version")
	expect(runtime.restore_snapshot(snapshot) and var_to_bytes(snapshot) == var_to_bytes(runtime.create_snapshot()), "exact typed room/evidence whole Runtime roundtrip")
	var directory := "user://tests/p13_reference_save_%d" % OS.get_process_id()
	var saved := SaveService.save_snapshot(directory, snapshot)
	expect(saved[&"ok"], "actual SaveService writes section in format 1")
	var loaded := SaveService.load_snapshot(directory)
	expect(loaded[&"ok"], "actual SaveService reads section")
	if loaded[&"ok"]:
		expect(loaded[&"manifest"]["format_version"] == 1, "existing format mapping unchanged")
		expect(runtime.restore_snapshot(loaded[&"snapshot"]), "loaded physical package reaches Runtime validation")
		expect(var_to_bytes(snapshot) == var_to_bytes(runtime.create_snapshot()), "physical save retains all typed fields")
	for mutation in range(18):
		var bad := snapshot.duplicate(true)
		var data: Dictionary = bad[&"systems"][&"runtime"]
		var section: Dictionary = data[&"special_peeping_rooms"]
		match mutation:
			0: data.erase(&"special_peeping_rooms")
			1: data[&"special_peeping_rooms"] = null
			2: section[&"version"] = 2
			3: section[&"version"] = 1.0
			4: section[&"unknown"] = true
			5: section.erase(&"evidence")
			6: section[&"rooms"].append(section[&"rooms"][0].duplicate(true))
			7: section[&"evidence"].append(section[&"evidence"][0].duplicate(true))
			8: section[&"rooms"][0][&"target_instance_id"] = &"missing.target"
			9: section[&"rooms"][0][&"target_definition_id"] = &"adult_private_room"
			10: section[&"rooms"][0][&"origin"] = Vector3i(8, 1, 1)
			11: section[&"rooms"][0][&"stopped"] = 1
			12: section[&"evidence"][0][&"room_id"] = &"peeping_room.999999999999"
			13: section[&"evidence"][0][&"source_event_key"] = &"aliased.event"
			14: section[&"evidence"][0][&"minute"] = f[&"clock"].absolute_minute + 1
			15: data[&"id_generator"]["counters"]["peeping_room"] = 0
			16:
				section.erase(&"version")
				section["version"] = 1
			17:
				section[&"rooms"][0][&"link_state"] = &"TARGET_LOST"
				section[&"rooms"][0][&"stopped"] = true
				section[&"rooms"][0][&"stop_reason"] = &"TARGET_LOST"
		expect(rejects_atomically(runtime, bad), "malformed/current missing/reference/duplicate rejection atomic case %d" % mutation)
	var orphan := empty.duplicate(true)
	orphan[&"systems"][&"runtime"][&"world"] = snapshot[&"systems"][&"runtime"][&"world"].duplicate(true)
	expect(rejects_atomically(runtime, orphan), "world-owned room without any section rejects atomically")
	var removed_world := snapshot.duplicate(true)
	removed_world[&"systems"][&"runtime"][&"world"] = empty[&"systems"][&"runtime"][&"world"].duplicate(true)
	expect(rejects_atomically(runtime, removed_world), "section-owned room without world occupancy rejects atomically")
	expect(runtime.restore_snapshot(empty) and runtime.peeping_room_service.is_empty(), "absent legacy section clears previous nonempty service on valid load")
	finish("Peeping room save")