extends SceneTree
## Headless playthrough of the whole Phase 0 room.
## Run: godot --headless --path . -s test/integration.gd

var fails := 0


func check(cond: bool, msg: String) -> void:
	if cond:
		print("  ok: " + msg)
	else:
		fails += 1
		printerr("  FAIL: " + msg)


# exposure accrues on physics ticks (real-time), so waits must count
# physics frames — process frames run uncapped-fast in headless
func wait(frames: int) -> void:
	for i in frames:
		await physics_frame


func wait_until(cond: Callable, max_frames: int) -> bool:
	for i in max_frames:
		if cond.call():
			return true
		await physics_frame
	return cond.call()


func find_i(kind_or_prompt: String) -> Node3D:
	for n in get_nodes_in_group("interactable"):
		if str(n.get("kind")) == kind_or_prompt or str(n.get("prompt_text")) == kind_or_prompt:
			return n
	return null


func _initialize() -> void:
	root.add_child(load("res://scenes/main.tscn").instantiate())
	_run()


func _run() -> void:
	Engine.time_scale = 3.0  # ponytail: same sim, less wall-clock
	await wait(10)
	var main := root.get_node("Main")
	var droid: Droid = main.droid

	print("== donation ==")
	var socket := find_i("DONATE WHEEL TO DOOR BUS")
	socket.interact(droid)
	check(main.door1.is_open and droid.wheels == 1, "wheel donated, door1 open, droid slow")

	print("== be the wire ==")
	droid.global_position = Vector3(0, 0.2, 15.3)
	droid.core.force_state("charged")
	check(await wait_until(func(): return main.door2.is_open, 120),
		"charged droid in the bus gap closes the circuit")

	var wheel := find_i("TAKE WHEEL")
	wheel.interact(droid)
	check(droid.wheels == 2, "replacement wheel reinstalled")

	print("== electrified puddle ==")
	droid.global_position = Vector3(-2.6, 0.2, 24)
	droid.core.force_state("charged")
	check(await wait_until(func(): return main.puddle_live.enabled, 120),
		"puddle goes live from droid charge")
	check(await wait_until(func(): return main.relay.state == "tripped", 300),
		"live puddle trips sluice relay")
	check(main.door3.is_open, "relay opens door3")
	check(droid.shell.state == "wet" or droid.stun > 0, "droid got wet/shocked in the process")
	droid.global_position = Vector3(0, 0.2, 25)
	await wait_until(func(): return droid.stun <= 0 and main.puddle_live.enabled == false, 600)

	print("== leaky bucket ==")
	var bucket := find_i("bucket")
	bucket.interact(droid)
	check(droid.held == bucket, "bucket taken")
	var tank := find_i("POUR COOLANT")
	for trip in 2:
		droid.global_position = Vector3(-2.7, 0.2, 28)
		check(await wait_until(func(): return bucket.ex.state == "full", 400),
			"bucket fills at valve (trip %d)" % (trip + 1))
		droid.global_position = Vector3(2.4, 0.2, 32.0)
		await wait(5)
		tank.interact(droid)
	check(tank.count == 2 and main.door4.is_open, "two pours open the sluice door")

	print("== drum rotation ==")
	# droid is wet from the valve; wet+charged self-shocks (by design) — dry off first
	droid.shell.force_state("dry")
	droid.global_position = Vector3(2.9, 0.2, 18.6)
	droid.core.force_state("charged")
	check(await wait_until(func(): return main.drum_turned, 180), "charged touch starts the drum")
	await wait(200)  # tween is 3s
	var crate := find_i("crate")
	check(crate != null and crate.global_position.y < 2.0 and crate.global_position.x < 6.5,
		"rotation brought the crate within reach")
	droid.global_position = Vector3(4.2, 0.2, 22)
	crate.interact(droid)
	check(droid.held == crate, "crate taken (bucket dropped)")
	var plate := find_i("PLACE CARGO ON PLATE")
	droid.global_position = Vector3(2.0, 0.2, 24.2)
	plate.interact(droid)
	check(main.bonus_door.is_open, "cargo plate opens bonus bay")

	print("== solar exit ==")
	main.t_sol = 5.0  # daytime
	droid.global_position = Vector3(0, 0.2, 37)
	check(await wait_until(func(): return main.exit_door.is_open, 120),
		"daylight powers solar cell, exit opens")
	main.t_sol = 45.0  # nightfall
	check(await wait_until(func(): return not main.exit_door.is_open, 300),
		"night kills solar cell, exit closes")
	main.t_sol = 5.0

	print("== win ==")
	await wait_until(func(): return main.exit_door.is_open, 120)
	droid.global_position = Vector3(0, 0.2, 42)
	check(await wait_until(func(): return main.won, 60), "crossing the exit wins Phase 0")

	if fails == 0:
		print("INTEGRATION PASS — full room playthrough OK")
	else:
		printerr("INTEGRATION: %d FAILURES" % fails)
	quit(1 if fails > 0 else 0)