extends Node
const AI = preload("res://scripts/ai/simple_ai.gd")
var main: Node3D
var checks: int = 0
var failures: Array[String] = []
var expedition: bool = "--expedition" in OS.get_cmdline_user_args()

func check(value: bool, message: String) -> void:
	checks += 1
	if not value:
		failures.append(message)
		printerr("RUNTIME_FAIL: ", message)

func key(code: Key) -> void:
	var event := InputEventKey.new()
	event.keycode = code
	event.pressed = true
	get_viewport().push_input(event,true)
	event = event.duplicate()
	event.pressed = false
	get_viewport().push_input(event,true)

func _ready() -> void:
	call_deferred("run")

func run() -> void:
	GameState.reset_match()
	GameState.factions = ["glutpakt", "glutpakt"]
	GameState.timed_build = true
	GameState.select_mode(GameState.MODE_SHORT)
	main = load("res://scenes/main.tscn").instantiate()
	add_child(main)
	WaveManager.set_physics_process(false)
	await get_tree().process_frame
	main.hud._overlay_action.pressed.emit()
	main.hud._starter_button.pressed.emit()
	await get_tree().process_frame
	var cursor := Vector2(530,360)
	var press := InputEventMouseButton.new()
	press.position = cursor
	press.button_index = MOUSE_BUTTON_MIDDLE
	press.pressed = true
	get_viewport().push_input(press,true)
	var motion := InputEventMouseMotion.new()
	motion.position = cursor + Vector2(90,40)
	motion.relative = Vector2(90,40)
	motion.button_mask = MOUSE_BUTTON_MASK_MIDDLE
	var initial_focus: Vector3 = main._focus
	get_viewport().push_input(motion,true)
	press = press.duplicate()
	press.pressed = false
	get_viewport().push_input(press,true)
	check(main._manual_camera and main._focus != initial_focus, "Middle drag pans and disables auto-follow")
	key(KEY_R)
	check(not main._manual_camera and main._focus.is_equal_approx(initial_focus), "Reset resumes following")
	main.hud._ready_button.grab_focus()
	key(KEY_F1)
	key(KEY_SPACE)
	check(GameState.phase == GameState.Phase.BUILD and main.hud.settings_panel.visible, "Ready button cannot activate behind options")
	key(KEY_ESCAPE)
	check(main.hud._ready_button.has_focus(), "Closing options restores keyboard focus")
	# Exercise volume, mute and lane filtering without altering saved preferences.
	var old_mute: bool = Preferences.muted
	var old_volume: float = Preferences.volume
	Preferences.muted = false
	Preferences.volume = .65
	Preferences.apply()
	Soundscape.enabled = true
	Soundscape.viewed_team = 0
	await get_tree().create_timer(.15).timeout
	check(Soundscape.play("ability"), "An audible effect starts")
	check(not Soundscape.play("ability"), "Immediate duplicate effect is rate-limited")
	check(not Soundscape.play("stone",1,true), "Hidden lane is silent")
	Preferences.muted = true
	Preferences.apply()
	check(not Soundscape.play("error"), "Mute prevents effects")
	Preferences.muted = false
	Preferences.apply()
	# Advance seven regular waves, then render a timed 2x boss fight.
	GameState.ai_level = GameState.AI_LEARNING
	if expedition:
		GameState.reset_match()
		if "--wurzelbund" in OS.get_cmdline_user_args():
			GameState.factions = ["wurzelbund", "wurzelbund"]
		GameState.select_mode(GameState.MODE_EXPEDITION)
		GameState.ai_level = GameState.AI_STANDARD
	WaveManager.start_match()
	var ai := AI.new()
	Soundscape.enabled = false
	var last_wave: int = DataCatalog.wave_count()
	main.battle.render_enabled = false
	for number: int in range(1,last_wave+1):
		ai.plan(0,number,WaveManager.rival_snapshot(),GameState.last_reports[0],GameState.AI_STANDARD)
		if number == last_wave:
			main.battle.render_enabled = true
		WaveManager.ready_for_battle()
		if number == last_wave:
			break
		for step: int in range(5401):
			if GameState.phase != GameState.Phase.COMBAT:
				break
			WaveManager.advance(1.0/60.0)
		WaveManager.ready_for_battle()
	GameState.speed = 2
	Soundscape.enabled = true
	WaveManager.set_physics_process(true)
	await get_tree().create_timer(2.0).timeout
	var frames: Array[float] = []
	var calls: Array[int] = []
	var start: int = Time.get_ticks_usec()
	var previous: int = start
	var sound_start: int = Soundscape.played
	var units_start: int = main.battle.units.size()
	while Time.get_ticks_usec() - start < 12000000:
		await get_tree().process_frame
		var now: int = Time.get_ticks_usec()
		frames.append((now - previous)/1000.0)
		calls.append(int(Performance.get_monitor(Performance.RENDER_TOTAL_DRAW_CALLS_IN_FRAME)))
		previous = now
	frames.sort()
	calls.sort()
	var mean: float = 0
	for value: float in frames:
		mean += value
	mean /= frames.size()
	var sounds: int = Soundscape.played - sound_start
	check(sounds > 0 and sounds <= 190, "2x audio stays bounded and produces effects")
	var result: Dictionary = {"engine": Engine.get_version_info().string, "device": RenderingServer.get_video_adapter_name(),
		"viewport": str(get_viewport().get_visible_rect().size), "wave": last_wave, "speed": 2, "sample_seconds": 12,
		"units_at_start": units_start, "frames":frames.size(),"mean_frame_ms":mean,"p95_frame_ms":frames[floori(frames.size()*.95)],
		"mean_fps":1000.0/mean,"max_draw_calls":calls.back(),"audio_events":sounds,"checks":checks,"failures":failures}
	var phase: String = "phase10" if "--phase10" in OS.get_cmdline_user_args() else "phase9" if "--wurzelbund" in OS.get_cmdline_user_args() else "phase8" if expedition else ("phase7" if "--phase7" in OS.get_cmdline_user_args() else "phase6")
	result["renderer"] = RenderingServer.get_current_rendering_method()
	var file := FileAccess.open("res://docs/" + phase + "-runtime.json", FileAccess.WRITE)
	file.store_string(JSON.stringify(result,"\t")); file.close()
	print("PHASE6_RUNTIME: ",JSON.stringify(result))
	Preferences.volume = old_volume
	Preferences.muted = old_mute
	Preferences.apply()
	await Soundscape.quit_game(0 if failures.is_empty() else 1)