/*
 * Copyright (c) 2011, 2012 Roberto Tyley
 *
 * This file is part of 'Agit' - an Android Git client.
 *
 * Agit is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Agit is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/ .
 */

package com.madgag.agit;

import static com.madgag.agit.R.layout.rev_commit_list_item;
import static roboguice.RoboGuice.getInjector;
import android.content.Context;
import android.content.Intent;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import com.google.common.base.Function;
import com.google.inject.Inject;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.madgag.agit.guice.ContextScopedViewInflatorFactory;
import com.madgag.android.listviews.ViewHoldingListAdapter;

import java.util.Collections;
import java.util.List;

import org.eclipse.jgit.revwalk.RevCommit;

import roboguice.inject.ContextSingleton;

@ContextSingleton
public class RevCommitListView extends PullToRefreshListView {

    private static String TAG = "RCLV";

    @Inject
    CommitViewHolderFactory commitViewHolderFactory;
    @Inject
    ContextScopedViewInflatorFactory inflatorFactory;
    private Function<RevCommit, Intent> commitViewerIntentCreator;

    private final ViewHoldingListAdapter<RevCommit> adapter;

    public RevCommitListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        getInjector(context).injectMembers(this);
        setShowIndicator(false); // TODO - show indicator if refs indicate more commits available
        adapter = new ViewHoldingListAdapter<RevCommit>(Collections.<RevCommit>emptyList(),
                inflatorFactory.creatorFor(getContext(), rev_commit_list_item),
                commitViewHolderFactory);
        configureListView(getRefreshableView());
    }

    private void configureListView(ListView listView) {
        listView.setAdapter(adapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                RevCommit commit = (RevCommit) adapter.getItem(position);
                getContext().startActivity(commitViewerIntentCreator.apply(commit));
            }
        });
    }

    public void setCommits(Function<RevCommit, Intent> commitViewerIntentCreator, List<RevCommit> commits) {
        Log.d(TAG, "Setting commits: " + commits.get(0).toObjectId() + " .. " + commits.get(commits.size() - 1)
                .toObjectId());
        this.commitViewerIntentCreator = commitViewerIntentCreator;

        adapter.setList(commits);
    }
}