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);

        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(mView, 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());

    }

}