///if arm_audio

type speaker_object_t = {
	base?: object_t;
	data?: speaker_data_t;
	paused?: bool;
	sound?: sound_t;
	channels?: audio_channel_t[];
	volume?: f32;
};

function speaker_object_create(data: speaker_data_t): speaker_object_t {
	let raw: speaker_object_t = {};
	raw.paused = false;
	raw.channels = [];
	raw.base = object_create(false);
	raw.base.ext = raw;
	raw.base.ext_type = "speaker_object_t";
	raw.data = data;

	array_push(scene_speakers, raw);

	if (data.sound == "") {
		return raw;
	}

	raw.sound = data_get_sound(data.sound);
	sys_notify_on_next_frame(_speaker_object_create_on_init, raw);
	return raw;
}

function _speaker_object_create_on_init(raw: speaker_object_t) {
	if (raw.base.visible && raw.data.play_on_start) {
		speaker_object_play(raw);
	}
}

function speaker_object_play(raw: speaker_object_t) {
	if (raw.sound == null || raw.data.muted) {
		return;
	}
	if (raw.paused) {
		for (let i: i32 = 0; i < raw.channels.length; ++i) {
			let c: audio_channel_t = raw.channels[i];
			// audio_play(c);
		}
		raw.paused = false;
		return;
	}
	let channel: audio_channel_t = null; // audio_channel(raw.sound, raw.data.loop, raw.data.stream);
	if (channel != null) {
		array_push(raw.channels, channel);
		if (raw.data.attenuation > 0 && raw.channels.length == 1) {
			sys_notify_on_update(speaker_object_update, raw);
		}
	}
}

function speaker_object_pause(raw: speaker_object_t) {
	for (let i: i32 = 0; i < raw.channels.length; ++i) {
		let c: audio_channel_t = raw.channels[i];
		// audio_pause(c);
	}
	raw.paused = true;
}

function speaker_object_stop(raw: speaker_object_t) {
	for (let i: i32 = 0; i < raw.channels.length; ++i) {
		let c: audio_channel_t = raw.channels[i];
		// audio_stop(c);
	}
	array_splice(raw.channels, 0, raw.channels.length);
}

function speaker_object_update(raw: speaker_object_t) {
	if (raw.paused) {
		return;
	}
	for (let i: i32 = 0; i < raw.channels.length; ++i) {
		let c: audio_channel_t = raw.channels[i];
		// if (c.finished) {
			// array_remove(raw.channels, c);
		// }
	}
	if (raw.channels.length == 0) {
		sys_remove_update(speaker_object_update);
		return;
	}

	if (raw.data.attenuation > 0) {
		let distance: f32 = vec4_dist(mat4_get_loc(scene_camera.base.transform.world), mat4_get_loc(raw.base.transform.world));
		raw.volume = 1.0 / (1.0 + raw.data.attenuation * (distance - 1.0));
		raw.volume *= raw.data.volume;
	}
	else {
		raw.volume = raw.data.volume;
	}

	for (let i: i32 = 0; i < raw.channels.length; ++i) {
		let c: audio_channel_t = raw.channels[i];
		// c.volume = raw.volume;
	}
}

function speaker_object_remove(raw: speaker_object_t) {
	speaker_object_stop(raw);
	array_remove(scene_speakers, raw);
	object_remove_super(raw.base);
}

function speaker_data_get_raw_by_name(datas: speaker_data_t[], name: string): speaker_data_t {
	if (name == "") {
		return datas[0];
	}
	for (let i: i32 = 0; i < datas.length; ++i) {
		if (datas[i].name == name) {
			return datas[i];
		}
	}
	return null;
}

///end