package tz.signaturecapture;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;

import android.app.Activity;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Toast;
 
public class CaptureSignature extends Activity {
 
    LinearLayout mContent;
    SignatureWidget mSignature;
    Button mClear, mGetSign, mCancel;
    public static String tempDir;
    public int count = 1;
    public String current = null;
    View mView;
    File mypath;
 
    private String uniqueId;
    private EditText yourName;
 
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.signature);
        
        tempDir = Environment.getExternalStorageDirectory() + "/" + getResources().getString(R.string.external_dir) + "/";
        ContextWrapper cw = new ContextWrapper(getApplicationContext());
        //File directory = cw.getDir(getResources().getString(R.string.external_dir), Context.MODE_PRIVATE);
        File directory = new File(tempDir);
 
        prepareDirectory();
        uniqueId = getTodaysDate() + "_" + getCurrentTime() + "_" + Math.random();
        current = uniqueId + ".png";
        mypath= new File(directory,current);
 
 
        mContent = (LinearLayout) findViewById(R.id.linearLayout);
        mSignature = new SignatureWidget(this, null);
        mSignature.setBackgroundColor(Color.WHITE);
        mSignature.setOnTouchListener(new OnTouchListener() {
          @Override
          public boolean onTouch(View v, MotionEvent event) {
            mGetSign.setEnabled(true);
            return false;
          }
        });
        mContent.addView(mSignature, LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
        mClear = (Button)findViewById(R.id.clear);
        mGetSign = (Button)findViewById(R.id.getsign);
        mGetSign.setEnabled(false);
        mCancel = (Button)findViewById(R.id.cancel);
        mView = mContent;
 
        yourName = (EditText) findViewById(R.id.yourName);
 
        mClear.setOnClickListener(new OnClickListener()
        {       
            public void onClick(View v)
            {
                Log.v("log_tag", "Panel Cleared");
                mSignature.clear();
                mGetSign.setEnabled(false);
            }
        });
 
        mGetSign.setOnClickListener(new OnClickListener()
        {       
            public void onClick(View v)
            {
                Log.v("log_tag", "Panel Saved");
                boolean error = captureSignature();
                if(!error){
                    mView.setDrawingCacheEnabled(true);
                    try {
                        FileOutputStream os = new FileOutputStream(mypath);
                        mSignature.save(os);
                        os.flush();
                        os.close();
                        setResult(RESULT_OK, new Intent().putExtra("status",
                            "done"));  
                        finish();
                    } catch (IOException e) {
                        Toast.makeText(CaptureSignature.this, String.format(
                            "Failed to save signature: %", e.getMessage()),
                            Toast.LENGTH_LONG).show();
                    }

                }
            }
        });
 
        mCancel.setOnClickListener(new OnClickListener()
        {       
            public void onClick(View v)
            {
                Log.v("log_tag", "Panel Canceled");
                Bundle b = new Bundle();
                b.putString("status", "cancel");
                Intent intent = new Intent();
                intent.putExtras(b);
                setResult(RESULT_OK,intent); 
                finish();
            }
        });
 
    }
 
    @Override
    protected void onDestroy() {
        Log.w("GetSignature", "onDestory");
        super.onDestroy();
    }
 
    private boolean captureSignature() {
 
        boolean error = false;
        String errorMessage = "";
 
 
        if(yourName.getText().toString().equalsIgnoreCase("")){
            errorMessage = errorMessage + "Please enter your Name\n";
            error = true;
        }  
 
        if(error){
            Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
            toast.setGravity(Gravity.TOP, 105, 50);
            toast.show();
        }
 
        return error;
    }
 
    private String getTodaysDate() {
 
        final Calendar c = Calendar.getInstance();
        int todaysDate =     (c.get(Calendar.YEAR) * 10000) +
        ((c.get(Calendar.MONTH) + 1) * 100) +
        (c.get(Calendar.DAY_OF_MONTH));
        Log.w("DATE:",String.valueOf(todaysDate));
        return(String.valueOf(todaysDate));
 
    }
 
    private String getCurrentTime() {
 
        final Calendar c = Calendar.getInstance();
        int currentTime =     (c.get(Calendar.HOUR_OF_DAY) * 10000) +
        (c.get(Calendar.MINUTE) * 100) +
        (c.get(Calendar.SECOND));
        Log.w("TIME:",String.valueOf(currentTime));
        return(String.valueOf(currentTime));
 
    }
 
 
    private boolean prepareDirectory()
    {
        try
        {
            if (makedirs())
            {
                return true;
            } else {
                return false;
            }
        } catch (Exception e)
        {
            e.printStackTrace();
            Toast.makeText(this, "Could not initiate File System.. Is Sdcard mounted properly?", 1000).show();
            return false;
        }
    }
 
    private boolean makedirs()
    {
        File tempdir = new File(tempDir);
        if (!tempdir.exists())
            tempdir.mkdirs();
 
        if (tempdir.isDirectory())
        {
            File[] files = tempdir.listFiles();
            for (File file : files)
            {
                if (!file.delete())
                {
                    System.out.println("Failed to delete " + file);
                }
            }
        }
        return (tempdir.isDirectory());
    }
}