import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.List;

import org.hedgewars.hedgeroid.R;

import org.hedgewars.hedgeroid.Datastructures.FrontendDataUtils;

import org.hedgewars.hedgeroid.Datastructures.Team;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.content.DialogInterface.OnClickListener;

import android.os.Bundle;

import android.support.v4.app.DialogFragment;

public class TeamAddDialog extends DialogFragment {

	private static final String STATE_TEAMS_ALREADY_IN_GAME = "teamAlreadyInGame";

	private ArrayList<String> teamsAlreadyInGame;

	private List<Team> availableTeams;

	private Listener listener;

	public static interface Listener {

		void onTeamAddDialogSubmitted(Team newTeam);

	}

	public TeamAddDialog() {

		// Only for reflection-based instantiation by the framework

	}

	TeamAddDialog(Collection<String> teamsAlreadyInGame) {

		this.teamsAlreadyInGame = new ArrayList<String>(teamsAlreadyInGame);

	}

	@Override

	public void onAttach(Activity activity) {

		super.onAttach(activity);

		try {

			listener = (Listener) activity;

		} catch(ClassCastException e) {

			throw new ClassCastException("Activity " + activity + " must implement TeamAddDialog.Listener to use TeamAddDialog.");

		}

	}

	@Override

	public void onDetach() {

		super.onDetach();

		listener = null;

	}

	@Override

	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		if(savedInstanceState != null) {

			teamsAlreadyInGame = savedInstanceState.getStringArrayList(STATE_TEAMS_ALREADY_IN_GAME);

		}

		availableTeams = new ArrayList<Team>();

		List<Team> teams = FrontendDataUtils.getTeams(getActivity());

		for(Team team : teams) {

			if(!teamsAlreadyInGame.contains(team.name)) {

				availableTeams.add(team);

			}

		}

		Collections.sort(availableTeams, Team.NAME_ORDER);

	}

	@Override

	public Dialog onCreateDialog(Bundle savedInstanceState) {

		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

		builder.setTitle(R.string.dialog_addteam_title);

		builder.setIcon(R.drawable.human);

		String[] teamNames = new String[availableTeams.size()];

		for(int i=0; i<availableTeams.size(); i++) {

			teamNames[i] = availableTeams.get(i).name;

		}

		builder.setItems(teamNames, new OnClickListener() {

			public void onClick(DialogInterface dialog, int which) {

				listener.onTeamAddDialogSubmitted(availableTeams.get(which));

			}

		});

		return builder.create();

	}

	@Override

	public void onSaveInstanceState(Bundle outState) {

		super.onSaveInstanceState(outState);

		outState.putStringArrayList(STATE_TEAMS_ALREADY_IN_GAME, teamsAlreadyInGame);

	}

}