extends SceneTree
var checks := 0
var failures := 0
func _initialize() -> void:
	call_deferred("_run")
func expect(ok: bool, label: String) -> void:
	checks += 1
	if not ok:
		failures += 1
		push_error(label)
func _run() -> void:
	var clock: Variant = load("res://autoload/game_clock.gd").new()
	var state: Variant = load("res://autoload/game_state.gd").new()
	var runtime: Variant = load("res://autoload/simulation_runtime.gd").new()
	clock.reset(1, 6, 0)
	state.reset()
	expect(runtime.initialize(clock, state, 424242)[&"valid"], "initialize")
	clock.set_paused(true)
	expect(runtime.enable_production_operations()[&"ok"], "enable")
	var definition: FacilityDefinition = runtime.definition_registry.get_facility(&"standard_room")
	var original_rate := definition.maintenance_gold
	definition.maintenance_gold = 24
	expect(runtime.facility_service.create_instance({&"instance_id": &"upkeep-room", &"definition_id": &"standard_room"}).is_success(), "completed room")
	runtime.facility_service.set_operational_status(&"upkeep-room", {&"suspension_reason": &"DESTROYED"}, 360)
	clock.advance_minutes(60)
	expect(runtime.facility_upkeep.get_report()[&"pending_facility_units"].get("upkeep-room", 0) == 1440, "suspended room accrues one hour")
	runtime.facility_service.unregister_instance(&"upkeep-room")
	clock.advance_minutes(1019)
	var before: Dictionary = runtime.create_snapshot()
	expect(runtime.restore_snapshot(before), "23:59 save restores incurred upkeep after demolition")
	clock.advance_minutes(1)
	var summary: Dictionary = runtime.operations_coordinator.get_day_summary(1)
	expect(not summary.is_empty(), "midnight closes")
	if not summary.is_empty():
		expect(summary[&"category_totals"][&"maintenance"] == 1, "one hour charged, post demolition no accrual")
		expect(summary[&"facility_profit_loss"].get(&"upkeep-room", {}).get(&"expenses", 0) == 1, "demolished facility expense retained")
	expect(runtime.economy_service.get_balance(FacilityUpkeepSettlement.EXPENSE) == 1, "expense ledger")
	var saved: Dictionary = runtime.create_snapshot()
	DirAccess.make_dir_recursive_absolute("res://artifacts/upkeep-2026-09-29")
	FileAccess.open("res://artifacts/upkeep-2026-09-29/preclose-snapshot.txt", FileAccess.WRITE).store_string(var_to_str(before))
	FileAccess.open("res://artifacts/upkeep-2026-09-29/closed-snapshot.txt", FileAccess.WRITE).store_string(var_to_str(saved))
	expect(runtime.restore_snapshot(saved), "closed upkeep save roundtrip")
	expect(runtime.create_snapshot() == saved, "closed snapshot exact")
	var panel := OperatingLedgerPanel.new()
	panel.setup(runtime, clock)
	expect(panel.get_report()[&"upkeep_cash_out"] == 1, "UI shows midnight maintenance payment")
	expect(panel.get_report()[&"upkeep_arrears"] == 0, "UI distinguishes unpaid balance")
	panel.free()
	var tampered := saved.duplicate(true)
	tampered[&"systems"][&"runtime"][&"facility_upkeep"][&"closed_periods"][0][&"facility_units"]["upkeep-room"] += 1
	expect(not runtime.restore_snapshot(tampered) and runtime.create_snapshot() == saved, "receipt cannot diverge from accrued units")
	expect(runtime.restore_snapshot(before), "restore before unpaid close")
	var cash: int = runtime.economy_service.get_balance(&"PLAYER_CASH")
	expect(runtime.economy_service.transfer(&"PLAYER_CASH", &"CONSTRUCTION_EXPENSE", cash, 1439, &"CONSTRUCTION").is_success(), "spend cash before midnight")
	clock.advance_minutes(1)
	expect(runtime.upkeep_settlement.get_report()[&"arrears_total"] == 1, "insufficient funds retain full upkeep debt")
	expect(runtime.operations_coordinator.get_arrears_total() == 1, "coordinator includes upkeep debt")
	expect(runtime.operations_coordinator.get_day_summary(1)[&"category_totals"][&"maintenance"] == 1, "unpaid upkeep still reduces profit")
	var unpaid: Dictionary = runtime.create_snapshot()
	expect(runtime.restore_snapshot(unpaid), "unpaid close saves and restores")
	expect(runtime.create_snapshot() == unpaid, "unpaid close does not charge twice")
	# A controlled construction refund funds next-day repayment. This is a ledger
	# fixture, not evidence of natural sales or a normal-play balance result.
	expect(runtime.economy_service.transfer(&"CONSTRUCTION_EXPENSE", &"PLAYER_CASH", 2, 1440, &"CONSTRUCTION_REFUND").is_success(), "refund provides repayment funds")
	var funded: Dictionary = runtime.create_snapshot()
	expect(runtime.restore_snapshot(funded), "funded debt survives save restore")
	clock.advance_minutes(1439)
	expect(runtime.upkeep_settlement.get_arrears_total() == 1 and runtime.economy_service.get_balance(&"PLAYER_CASH") == 2, "debt awaits next midnight")
	var repayment_before: Dictionary = runtime.create_snapshot()
	expect(runtime.restore_snapshot(repayment_before), "next 23:59 restores outstanding debt")
	clock.advance_minutes(1)
	expect(not runtime.get_operations_report()[&"runtime_failure_latched"], "next-day repayment completes without failure")
	expect(runtime.upkeep_settlement.get_arrears_total() == 0 and runtime.operations_coordinator.get_arrears_total() == 0, "next midnight clears runtime and coordinator debt")
	expect(runtime.economy_service.get_balance(&"PLAYER_CASH") == 1, "old debt paid exactly once")
	expect(runtime.economy_service.get_balance(FacilityUpkeepSettlement.EXPENSE) == 1, "repayment does not recognize expense twice")
	var next_summary: Dictionary = runtime.operations_coordinator.get_day_summary(2)
	expect(not next_summary.is_empty() and next_summary[&"category_totals"][&"maintenance"] == 0, "next-day profit excludes prior expense repayment")
	var repaid: Dictionary = runtime.create_snapshot()
	expect(runtime.restore_snapshot(repaid) and runtime.create_snapshot() == repaid, "repaid snapshot roundtrip is exact")
	# Failure after posting upkeep must roll back receipts, ledger, cash and payroll.
	expect(runtime.restore_snapshot(before), "restore before failed close")
	expect(runtime.economy_service.transfer(&"PLAYER_CASH", &"CONSTRUCTION_EXPENSE", 1, 1439, &"UNKNOWN_TEST_CATEGORY").is_success(), "inject classification failure")
	var ledger_before: Dictionary = runtime.economy_service.create_snapshot()
	clock.advance_minutes(1)
	expect(runtime.get_operations_report()[&"runtime_failure_latched"], "failed close pauses runtime")
	expect(runtime.economy_service.create_snapshot() == ledger_before, "post-upkeep failure rolls ledger back exactly")
	expect(runtime.upkeep_settlement.get_report()[&"receipts"].is_empty(), "failed close leaves no settlement receipt")
	# Old saves start charging only from the restored minute.
	expect(runtime.restore_snapshot(before), "recover canonical preclose state")
	var legacy := before.duplicate(true)
	var data: Dictionary = legacy[&"systems"][&"runtime"]
	data[&"runtime_schema_version"] = 9
	preload("res://tests/fixtures/pre_upkeep_runtime.gd").strip_empty_upkeep(data)
	expect(runtime.restore_snapshot(legacy), "genuine v9 migrates")
	expect(runtime.facility_upkeep.create_snapshot()[&"started_at"] == 1439, "migration starts at save minute without retroactive charge")
	clock.advance_minutes(1)
	expect(runtime.economy_service.get_balance(FacilityUpkeepSettlement.EXPENSE) == 0, "legacy save never bills pre-migration ownership")
	definition.maintenance_gold = original_rate
	runtime.free()
	clock.free()
	state.free()
	print("%s: %d checks" % ["PASS" if failures == 0 else "FAIL", checks])
	quit(failures)