#include <bass.h>
#include <basscd.h>
#include <bassmidi.h>
#include <bassflac.h>
#include <basswma.h>
#include <windows.h>
#include <string>
#include <stdio.h>

using namespace std;

#define CMUSIC_STOP BASS_ACTIVE_STOPPED/*停止状态*/
#define CMUSIC_PLAYING BASS_ACTIVE_PLAYING/*正在播放*/
#define CMUSIC_STALLED BASS_ACTIVE_STALLED/*失速状态, 正在等待数据*/
#define CMUSIC_PAUSED BASS_ACTIVE_PAUSED/*暂停状态*/

class CL_Music {
	private:
		DWORD id;
		HSOUNDFONT sfont;

		int plugin() {
			BASS_PluginLoad("bass_ape.dll",0); // plugin loaded...
			return 0;
		}//读取插件;
	public:
		//基本功能
		CL_Music() {
			BASS_Init(-1, 44100, 0, 0, 0);//初始化(启用设备-1表示默认,采样率,效果参数,窗口句柄,0表示使用默认数据初始化DirectSound)
			plugin();
		}
		~CL_Music() {
			BASS_Free();
		}
		void init(){
			BASS_Free();
			BASS_Init(-1, 44100, 0, 0, 0);//初始化(启用设备-1表示默认,采样率,效果参数,窗口句柄,0表示使用默认数据初始化DirectSound)
			plugin();
		}
		bool is_open() {
			return id >= BASS_ERROR_ENDED;
		}
		void OpenFile(string fn,int begin=0,int end=0,bool loop=false) {
			BASS_StreamFree(id);
			if(loop) {
				id=BASS_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);//是否从内存中加载,文件路径,起始位置,终止位置,是否循环播放
				if(!this->is_open()) id=BASS_FLAC_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_CD_StreamCreateFile(fn.c_str(), BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_WMA_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);
			} else {
				id=BASS_StreamCreateFile(FALSE, fn.c_str(), begin, end, 0|BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_FLAC_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_CD_StreamCreateFile(fn.c_str(), BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_WMA_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_FX);
			}
		}
		void OpenFile(wstring fn,int begin=0,int end=0,bool loop=false) {
			BASS_StreamFree(id);
			if(loop) {
				id=BASS_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);//是否从内存中加载,文件路径,起始位置,终止位置,是否循环播放
				if(!this->is_open()) id=BASS_FLAC_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_CD_StreamCreateFile(fn.c_str(), BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_WMA_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_LOOP|BASS_SAMPLE_FX);
			} else {
				id=BASS_StreamCreateFile(FALSE, fn.c_str(), begin, end, 0|BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_FLAC_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_CD_StreamCreateFile(fn.c_str(), BASS_SAMPLE_FX);
				if(!this->is_open()) id=BASS_WMA_StreamCreateFile(FALSE, fn.c_str(), begin, end, BASS_SAMPLE_FX);
			}
		}
		void Pause() {
			BASS_ChannelPause(id);
		}
		void Stop() {
			BASS_ChannelStop(id);
		}
		void setPos(float pos) {
			auto Position=BASS_ChannelSeconds2Bytes(id, pos);
			BASS_ChannelSetPosition(id, Position, BASS_POS_BYTE);
		}
		float getPos() {
			return BASS_ChannelBytes2Seconds(id, BASS_ChannelGetPosition(id, BASS_POS_BYTE));
		}
		void setVolume(float vol) {
			BASS_ChannelSetAttribute(id, BASS_ATTRIB_VOL, vol);
		}
		float getVolume() {
			float vol;
			BASS_ChannelGetAttribute(id, BASS_ATTRIB_VOL, &vol);
			return vol;
		}
		float getLength() {
			return BASS_ChannelBytes2Seconds(id, BASS_ChannelGetLength(id, BASS_POS_BYTE));
		}
		auto getActive() {
			return BASS_ChannelIsActive(id);
		}
		void Play(float pos) {
			this->setPos(pos);
			BASS_ChannelPlay(id,false);
		}
		//复杂功能
		int getLevel() {
			return BASS_ChannelGetLevel(id);
		}//获取左右声道峰值，低16位为左声道峰值; 高16位为右声道峰值
};