/*************************************************************************/
/*  spatial_sample_player.cpp                                            */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
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/*************************************************************************/

#include "spatial_sample_player.h"

#include "camera.h"
#include "scene/scene_string_names.h"
#include "servers/audio_server.h"
#include "servers/spatial_sound_server.h"

bool SpatialSamplePlayer::_set(const StringName &p_name, const Variant &p_value) {

	String name = p_name;

	if (name == SceneStringNames::get_singleton()->play_play) {
		if (library.is_valid()) {

			String what = p_value;
			if (what == "")
				stop_all();
			else
				play(what);

			played_back = what;
		}
		return true;
	}

	return false;
}

bool SpatialSamplePlayer::_get(const StringName &p_name, Variant &r_ret) const {

	String name = p_name;

	if (name == SceneStringNames::get_singleton()->play_play) {
		r_ret = played_back;
		return true;
	}

	return false;
}

void SpatialSamplePlayer::_get_property_list(List<PropertyInfo> *p_list) const {

	String en = "";
	if (library.is_valid()) {
		List<StringName> samples;
		Ref<SampleLibrary> ncl = library;
		ncl->get_sample_list(&samples);
		for (List<StringName>::Element *E = samples.front(); E; E = E->next()) {

			en += ",";
			en += E->get();
		}
	}

	p_list->push_back(PropertyInfo(Variant::STRING, "play/play", PROPERTY_HINT_ENUM, en, PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_ANIMATE_AS_TRIGGER));
}
void SpatialSamplePlayer::_notification(int p_what) {

	switch (p_what) {

		case NOTIFICATION_ENTER_WORLD: {

			SpatialSoundServer::get_singleton()->source_set_polyphony(get_source_rid(), polyphony);

		} break;
	}
}

void SpatialSamplePlayer::set_sample_library(const Ref<SampleLibrary> &p_library) {

	library = p_library;
	_change_notify();
	update_configuration_warning();
}

Ref<SampleLibrary> SpatialSamplePlayer::get_sample_library() const {

	return library;
}

void SpatialSamplePlayer::set_polyphony(int p_voice_count) {

	ERR_FAIL_COND(p_voice_count < 0 || p_voice_count > 64);
	polyphony = p_voice_count;
	if (get_source_rid().is_valid())
		SpatialSoundServer::get_singleton()->source_set_polyphony(get_source_rid(), polyphony);
}

int SpatialSamplePlayer::get_polyphony() const {

	return polyphony;
}

SpatialSamplePlayer::VoiceID SpatialSamplePlayer::play(const String &p_sample, int p_voice) {

	if (!get_source_rid().is_valid())
		return INVALID_VOICE;
	if (library.is_null())
		return INVALID_VOICE;
	if (!library->has_sample(p_sample))
		return INVALID_VOICE;
	Ref<Sample> sample = library->get_sample(p_sample);
	float vol_change = library->sample_get_volume_db(p_sample);
	float pitch_change = library->sample_get_pitch_scale(p_sample);
	int priority = library->sample_get_priority(p_sample);

	VoiceID vid = SpatialSoundServer::get_singleton()->source_play_sample(get_source_rid(), sample->get_rid(), sample->get_mix_rate() * pitch_change, p_voice);
	if (vol_change)
		SpatialSoundServer::get_singleton()->source_voice_set_volume_scale_db(get_source_rid(), vid, vol_change);

	return vid;
}
//voices
void SpatialSamplePlayer::voice_set_pitch_scale(VoiceID p_voice, float p_pitch_scale) {

	if (!get_source_rid().is_valid())
		return;

	SpatialSoundServer::get_singleton()->source_voice_set_pitch_scale(get_source_rid(), p_voice, p_pitch_scale);
}

void SpatialSamplePlayer::voice_set_volume_scale_db(VoiceID p_voice, float p_volume_db) {

	if (!get_source_rid().is_valid())
		return;
	SpatialSoundServer::get_singleton()->source_voice_set_volume_scale_db(get_source_rid(), p_voice, p_volume_db);
}

bool SpatialSamplePlayer::is_voice_active(VoiceID p_voice) const {

	if (!get_source_rid().is_valid())
		return false;
	return SpatialSoundServer::get_singleton()->source_is_voice_active(get_source_rid(), p_voice);
}

void SpatialSamplePlayer::stop_voice(VoiceID p_voice) {

	if (!get_source_rid().is_valid())
		return;
	SpatialSoundServer::get_singleton()->source_stop_voice(get_source_rid(), p_voice);
}

void SpatialSamplePlayer::stop_all() {

	if (!get_source_rid().is_valid())
		return;

	for (int i = 0; i < polyphony; i++) {

		SpatialSoundServer::get_singleton()->source_stop_voice(get_source_rid(), i);
	}
}

String SpatialSamplePlayer::get_configuration_warning() const {

	if (library.is_null()) {
		return TTR("A SampleLibrary resource must be created or set in the 'samples' property in order for SpatialSamplePlayer to play sound.");
	}

	return String();
}

void SpatialSamplePlayer::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("set_sample_library", "library:SampleLibrary"), &SpatialSamplePlayer::set_sample_library);
	ObjectTypeDB::bind_method(_MD("get_sample_library:SampleLibrary"), &SpatialSamplePlayer::get_sample_library);

	ObjectTypeDB::bind_method(_MD("set_polyphony", "voices"), &SpatialSamplePlayer::set_polyphony);
	ObjectTypeDB::bind_method(_MD("get_polyphony"), &SpatialSamplePlayer::get_polyphony);

	ObjectTypeDB::bind_method(_MD("play", "sample", "voice"), &SpatialSamplePlayer::play, DEFVAL(NEXT_VOICE));
	//voices,DEV
	ObjectTypeDB::bind_method(_MD("voice_set_pitch_scale", "voice", "ratio"), &SpatialSamplePlayer::voice_set_pitch_scale);
	ObjectTypeDB::bind_method(_MD("voice_set_volume_scale_db", "voice", "db"), &SpatialSamplePlayer::voice_set_volume_scale_db);

	ObjectTypeDB::bind_method(_MD("is_voice_active", "voice"), &SpatialSamplePlayer::is_voice_active);
	ObjectTypeDB::bind_method(_MD("stop_voice", "voice"), &SpatialSamplePlayer::stop_voice);
	ObjectTypeDB::bind_method(_MD("stop_all"), &SpatialSamplePlayer::stop_all);

	BIND_CONSTANT(INVALID_VOICE);
	BIND_CONSTANT(NEXT_VOICE);

	ADD_PROPERTY(PropertyInfo(Variant::INT, "config/polyphony", PROPERTY_HINT_RANGE, "1,64,1"), _SCS("set_polyphony"), _SCS("get_polyphony"));
	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "config/samples", PROPERTY_HINT_RESOURCE_TYPE, "SampleLibrary"), _SCS("set_sample_library"), _SCS("get_sample_library"));
}

SpatialSamplePlayer::SpatialSamplePlayer() {

	polyphony = 1;
}

SpatialSamplePlayer::~SpatialSamplePlayer() {
}