/*
 * Copyright (C) 2013 Nafundi LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package org.odk.collect.android.widgets;

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;

import org.javarosa.core.model.data.IAnswerData;
import org.javarosa.core.model.data.StringData;
import org.javarosa.form.api.FormEntryPrompt;
import org.odk.collect.android.R;
import org.odk.collect.android.application.Collect;

/**
 * Widget that allows user to open URLs from within the form
 *
 * @author Yaw Anokwa (yanokwa@gmail.com)
 */
public class UrlWidget extends QuestionWidget {
  private Button mOpenUrlButton;
  private TextView mStringAnswer;

  public UrlWidget(Context context, FormEntryPrompt prompt) {
    super(context, prompt);
    setOrientation(LinearLayout.VERTICAL);

    TableLayout.LayoutParams params = new TableLayout.LayoutParams();
    params.setMargins(7, 5, 7, 5);

    // set button formatting
    mOpenUrlButton = new Button(getContext());
    mOpenUrlButton.setId(QuestionWidget.newUniqueId());
    mOpenUrlButton.setText(getContext().getString(R.string.open_url));
    mOpenUrlButton.setTextSize(TypedValue.COMPLEX_UNIT_PX, getResources().getDimension(R.dimen.answer_text));
    final int urlButtonPadding = 20;
    mOpenUrlButton.setPadding(urlButtonPadding, urlButtonPadding, urlButtonPadding, urlButtonPadding);
    mOpenUrlButton.setEnabled(!prompt.isReadOnly());
    mOpenUrlButton.setLayoutParams(params);

    mOpenUrlButton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        Collect.getInstance()
            .getActivityLogger()
            .logInstanceAction(this, "openUrl", "click",
                mPrompt.getIndex());

        if (mStringAnswer != null & mStringAnswer.getText() != null
            && !"".equalsIgnoreCase((String) mStringAnswer.getText())) {
          Intent i = new Intent(Intent.ACTION_VIEW);
          i.setData(Uri.parse((String) mStringAnswer.getText()));
          getContext().startActivity(i);
        } else {
          Toast.makeText(getContext(), "No URL set", Toast.LENGTH_SHORT).show();
        }
      }
    });

    // set text formatting
    mStringAnswer = new TextView(getContext());
    mStringAnswer.setId(QuestionWidget.newUniqueId());
    mStringAnswer.setTextSize(TypedValue.COMPLEX_UNIT_PX, getResources().getDimension(R.dimen.answer_text));
    mStringAnswer.setGravity(Gravity.CENTER);

    String s = prompt.getAnswerText();
    if (s != null) {
      mStringAnswer.setText(s);
    }
    // finish complex layout
    addView(mOpenUrlButton);
    addView(mStringAnswer);
  }

  @Override
  public void clearAnswer() {
    Toast.makeText(getContext(), "URL is readonly", Toast.LENGTH_SHORT).show();
  }

  @Override
  public IAnswerData getAnswer() {
    String s = mStringAnswer.getText().toString();
    if (s == null || s.equals("")) {
      return null;
    } else {
      return new StringData(s);
    }
  }

  @Override
  public void setFocus(Context context) {
    // Hide the soft keyboard if it's showing.
    InputMethodManager inputManager = (InputMethodManager) context
        .getSystemService(Context.INPUT_METHOD_SERVICE);
    inputManager.hideSoftInputFromWindow(this.getWindowToken(), 0);
  }

  @Override
  public void setOnLongClickListener(OnLongClickListener l) {
  }

  @Override
  public void cancelLongPress() {
    super.cancelLongPress();
    mOpenUrlButton.cancelLongPress();
    mStringAnswer.cancelLongPress();
  }

}
