extends SceneTree
## Body-camera timeline smoke: records a few real interactions, opens the review's
## timeline, steps through every event, and closes back to the review.
##
## Usage:
##   godot --headless --path . --script res://src/test/smoke_timeline.gd

const MAX_FRAMES := 900

var frame := 0
var gm: Node = null
var started := false
var step := 0
var failures: Array[String] = []

func _initialize() -> void:
	root.size = Vector2i(1280, 720)
	root.add_child(load("res://scenes/main.tscn").instantiate())

func _process(_delta: float) -> bool:
	frame += 1
	if gm == null:
		gm = root.find_child("GameManager", true, false)
		return false
	if not started:
		gm.call("_on_venue_selected", "hollywood_building")
		started = true
		return false
	if frame > MAX_FRAMES:
		_fail("timeout")
		return true
	if frame < 200:
		return false
	match step:
		0:
			if gm.npcs.is_empty():
				return false
			gm.call("_on_guard_target", gm.npcs[0])
			gm.call("_apply_interaction", 1, "eye contact")
			gm.call("_request_reason")
			gm.call("_apply_interaction", 2, "formal warning")
			var review: Dictionary = gm.coordinator.build_review()
			# Real flow: the review screen shows first, then its timeline button.
			gm.shift_review_panel.show_review(review, gm.selected_scenario, [])
			var button: Button = gm.shift_review_panel.find_child("TimelineButton", true, false) as Button
			_check(button != null, "review offers a body-camera timeline button")
			if button:
				button.pressed.emit()
			var count: int = gm.event_timeline.events.size()
			_check(count >= 3, "timeline collected the interaction events (%d)" % count)
			_check(gm.event_timeline.visible, "timeline is showing")
			_check(not gm.shift_review_panel.visible, "review is hidden behind the timeline")
			_check(gm.guard.input_locked, "the guard is frozen while the timeline is open")
			for i in count + 2:
				gm.event_timeline.step(1)
			_check(gm.event_timeline.index == count - 1, "stepping clamps at the last event")
			gm.event_timeline.close()
			step = 1
		1:
			_check(not gm.event_timeline.visible, "timeline closes")
			_check(gm.shift_review_panel.visible, "closing returns to the review")
			_finish()
			return true
	return false

func _check(condition: bool, message: String) -> void:
	if condition:
		print("ok: " + message)
	else:
		_fail(message)

func _fail(message: String) -> void:
	failures.append(message)
	_finish()

func _finish() -> void:
	if failures.is_empty():
		print("SMOKE OK: body-camera timeline")
		quit(0)
	else:
		for message in failures:
			printerr("SMOKE FAIL: " + message)
		quit(1)