package com.bjzc.bhzhgd.base;

import android.content.Intent;
import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.hardware.Camera;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.bjzc.bhzhgd.R;
import com.bjzc.bhzhgd.zxing.camera.CameraManager;
import com.bjzc.bhzhgd.zxing.decoding.CaptureActivityHandler;
import com.bjzc.bhzhgd.zxing.decoding.InactivityTimer;
import com.bjzc.bhzhgd.zxing.view.ViewfinderView;

import java.io.IOException;
import java.util.Vector;


/**
 * 二维码扫描界面
 */
public class MipcaActivityCapture extends BaseActivity implements Callback {

    Button flashlightButton;
    private CaptureActivityHandler handler;
    private ViewfinderView viewfinderView;
    private boolean hasSurface;
    private Vector<BarcodeFormat> decodeFormats;
    private String characterSet;
    private InactivityTimer inactivityTimer;
    private MediaPlayer mediaPlayer;
    private boolean playBeep;
    private static final float BEEP_VOLUME = 0.10f;
    private boolean vibrate;
    private static Camera camera;
    private Camera.Parameters params;
    private boolean isOpen = true;

    public static final int CAMERA_REQ_CODE = 111;

    @Override
    public int getContentViewID() {
        return R.layout.activity_capture;
    }

    @Override
    protected void initView() {
        CameraManager.init(getApplication());
        viewfinderView = findViewById(R.id.viewfinder_view);
        hasSurface = false;
        inactivityTimer = new InactivityTimer(this);

        title = findViewById(R.id.title);
        flashlightButton = findViewById(R.id.flashlightButton);
        title.setText("二维码/条码扫描");
        mToolbar = findViewById(R.id.toolbar);
        mToolbar.setNavigationIcon(R.mipmap.back);
        mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });

        flashlightButton.setOnClickListener(openListener);
    }

    private View.OnClickListener openListener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //获取到ZXing相机管理器创建的camera
            camera = CameraManager.getCamera();
            params = camera.getParameters();
            if (params != null) {
                if (isOpen) {
                    flashlightButton.setText("关闭闪光灯");
                    params.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
                    camera.setParameters(params);
                    isOpen = false;
                } else {  // 关灯
                    flashlightButton.setText("打开闪光灯");
                    params.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
                    camera.setParameters(params);
                    isOpen = true;
                }
            } else {
                showToast("无法打开闪光灯，新版本安卓系统API已调整，请与管理员联系");
            }
        }
    };

    @Override
    protected void onResume() {
        super.onResume();
        SurfaceView surfaceView = findViewById(R.id.preview_view);
        SurfaceHolder surfaceHolder = surfaceView.getHolder();
        if (hasSurface) {
            initCamera(surfaceHolder);
        } else {
            surfaceHolder.addCallback(this);
            surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        }
        decodeFormats = null;
        characterSet = null;

        playBeep = true;
        AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
        if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
            playBeep = false;
        }
        initBeepSound();
        vibrate = true;

    }

    @Override
    protected void onPause() {
        super.onPause();
        if (handler != null) {
            handler.quitSynchronously();
            handler = null;
        }
        CameraManager.get().closeDriver();
    }

    @Override
    protected void onDestroy() {
        inactivityTimer.shutdown();
        super.onDestroy();
    }

    /**
     * ����ɨ����
     *
     * @param result
     * @param barcode
     */
    public void handleDecode(Result result, Bitmap barcode) {


        inactivityTimer.onActivity();


        playBeepSoundAndVibrate();

        String[] b = result.getText().split("\\t");

        String Result = b[0];

        if (Result.equals("")) {

            showToast("Scan failed!");

        } else {

            Intent resultIntent = new Intent();

            Bundle bundle = new Bundle();

            bundle.putString("result", Result);

            resultIntent.putExtras(bundle);

            setResult(RESULT_OK, resultIntent);
        }
        finish();
    }

    private void initCamera(SurfaceHolder surfaceHolder) {
        try {
            CameraManager.get().openDriver(surfaceHolder);
        } catch (IOException ioe) {
            return;
        } catch (RuntimeException e) {
            return;
        }
        if (handler == null) {
            handler = new CaptureActivityHandler(this, decodeFormats, characterSet);
        }
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {

    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        if (!hasSurface) {
            hasSurface = true;
            initCamera(holder);
        }

    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        hasSurface = false;

    }

    public ViewfinderView getViewfinderView() {
        return viewfinderView;
    }

    public Handler getHandler() {
        return handler;
    }

    public void drawViewfinder() {
        viewfinderView.drawViewfinder();

    }

    private void initBeepSound() {
        if (playBeep && mediaPlayer == null) {
            // The volume on STREAM_SYSTEM is not adjustable, and users found it
            // too loud,
            // so we now play on the music stream.
            setVolumeControlStream(AudioManager.STREAM_MUSIC);
            mediaPlayer = new MediaPlayer();
            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mediaPlayer.setOnCompletionListener(beepListener);

            AssetFileDescriptor file = getResources().openRawResourceFd(
                    R.raw.beep);
            try {
                mediaPlayer.setDataSource(file.getFileDescriptor(),
                        file.getStartOffset(), file.getLength());
                file.close();
                mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
                mediaPlayer.prepare();
            } catch (IOException e) {
                mediaPlayer = null;
            }
        }
    }

    private static final long VIBRATE_DURATION = 200L;

    private void playBeepSoundAndVibrate() {
        if (playBeep && mediaPlayer != null) {
            mediaPlayer.start();
        }
        if (vibrate) {
            Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
            vibrator.vibrate(VIBRATE_DURATION);
        }
    }

    /**
     * When the beep has finished playing, rewind to queue up another one.
     */
    private final OnCompletionListener beepListener = new OnCompletionListener() {
        public void onCompletion(MediaPlayer mediaPlayer) {
            mediaPlayer.seekTo(0);
        }
    };
}