package com.realtrackandroid.views.help;

import java.util.List;

import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.Button;

import com.realtrackandroid.R;
import com.realtrackandroid.backend.indicators.IndicatorsDAO;
import com.realtrackandroid.models.indicators.Indicators;

public class FrameworkInfoDialog extends DialogFragment {

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.dialog_help, container, false);
    getDialog().setCanceledOnTouchOutside(true);

    IndicatorsDAO iDao = new IndicatorsDAO(getActivity());

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
    String post = prefs.getString(getString(R.string.post), "");
    String project = prefs.getString(getString(R.string.project), "");

    List<Indicators> indicatorList = iDao.getAllIndicatorsForPostAndProject(post, project);

    WebView helpContent = (WebView) view.findViewById(R.id.helpContent);
    helpContent.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
    helpContent.loadDataWithBaseURL(null, createFrameworkContent(post, project, indicatorList),
            "text/html", "charset=ISO-8859-1", null);

    Button closeButton = (Button) view.findViewById(R.id.closeButton);
    closeButton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        dismiss();
      }
    });

    return view;
  }

  private String createFrameworkContent(String post, String project, List<Indicators> indicatorList) {
    StringBuilder sb = new StringBuilder();
    sb.append("<!DOCTYPE html>" + "<html>" + "<head>" + "<style>" + "div.header{"
            + "text-align:center;" + "background-color:#0099CC;" + "color:white;" + "padding:2px;"
            + "}" + "</style>" + "</head>" + "<body>" + "<div class='header'>");
    sb.append("<strong>Project Framework</strong>");
    addNewline(sb);
    sb.append("<br>" + project + ", " + post);
    sb.append("</div><br>");
    String _goal = "";
    String _objective = "";
    String _type = "";

    // the list is sorted on goals, then objectives, then type
    for (Indicators i : indicatorList) {
      String goal = i.getGoal();
      String objective = i.getObjective();
      String type = i.getType();
      if (!goal.equals(_goal)) {
        sb.append("</ul>"); // closes the last OBJECTIVE list
        sb.append("<strong>" + goal + "</strong>");
        sb.append("<ul>"); // opens the next OBJECTIVE list
        addNewline(sb);
        _goal = goal;
        _objective = "";
      }
      if (!objective.equals(_objective)) {
        sb.append("</ul>"); // closes the last INDICATORS list
        sb.append("<li><strong>" + objective + "</strong></li>");
        sb.append("<ul>"); // opens the next INDICATORS list
        _objective = objective;
        _type = "";
      }
      if (!type.equals(_type)) {
        sb.append("</ul>"); // closes the last INDICATORS list
        if (type.equals("Output"))
          sb.append("<span style='font-weight:bold;color:orange;'>" + type + " Indicators:</span>");
        else
          sb.append("<span style='font-weight:bold;color:green;'>" + type + " Indicators:</span>");
        addNewline(sb);
        sb.append("<ul>"); // opens the next INDICATORS list
        addNewline(sb);
        _type = type;
      }
      sb.append("<li>" + i.getIndicator());
      addNewline(sb);
    }

    sb.append("</body>" + "</html>");
    return sb.toString();
  }

  @Override
  public void onStart() {
    super.onStart();
    if (getDialog() == null)
      return;

    getDialog().getWindow().setLayout(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
  }

  private void addNewline(StringBuilder sb) {
    sb.append("\n");
  }
}