grunk/src/equipment/mp3_player/mp3_player.gd

extends Tool
## Pump up the jamz!

const BIG_RUMBLE = 0.006
const SMALL_RUMBLE = 0.0009
const RUMBLE_DROPOFF = 0.8

const AMBIENT_BUS_IDX = 3

@onready var mp3_controller: MP3Controller = %MP3Controller
@onready var audio_stream_player: AudioStreamPlayer = %AudioStreamPlayer
@onready var rumbler: Rumbler3D = %Rumbler


func _ready() -> void:
	World.instance.manager.mp3_collected.connect(_on_mp3_collected)


func unlocked() -> bool:
	return World.instance.manager.mp3_player_unlocked


func fire() -> void:
	if not firing:
		firing = true
		rumbler.intensity = BIG_RUMBLE
		mp3_controller.select()


func on_equip() -> void:
	_rebuild_track_list()


func switch_mode() -> void:
	rumbler.intensity = SMALL_RUMBLE
	mp3_controller.cancel()


func _physics_process(delta: float) -> void:
	rumbler.intensity *= RUMBLE_DROPOFF
	super._physics_process(delta)


func _on_mp3_collected(_track: MP3Track) -> void:
	_rebuild_track_list()


func _rebuild_track_list() -> void:
	# TODO we may want to dynamically build the player tracklist
	# rather than rebuilding the whole thing each time a track is collected
	var mp3_list: Array[String] = []
	mp3_list.assign(
		World.instance.manager.mp3_collection.map(func(mp3: MP3Track) -> String: return mp3.title)
	)
	mp3_controller.set_track_list(mp3_list)


func pause_playback() -> void:
	audio_stream_player.stream_paused = true
	AudioServer.set_bus_mute(AMBIENT_BUS_IDX, false)


func resume_playback() -> void:
	audio_stream_player.stream_paused = false
	AudioServer.set_bus_mute(AMBIENT_BUS_IDX, true)


func select_track(idx: int) -> void:
	audio_stream_player.stream = World.instance.manager.mp3_collection[idx].track
	audio_stream_player.play()
	AudioServer.set_bus_mute(AMBIENT_BUS_IDX, true)