package sg.edu.sp.www.internetaccess;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.view.View;
import android.widget.TabHost;
import android.webkit.WebViewClient;
import java.util.ArrayList;
import java.util.List;

public class InternetAccess extends AppCompatActivity implements View.OnClickListener,AdapterView.OnItemClickListener {
    private EditText siteName;
    private EditText webLink;
    private Button buttonSave;
    private ListView list;
    private TabHost host;
    private WebView internet;
    private ArrayAdapter<WebSite> adapter = null;
    private List<WebSite> model = new ArrayList<WebSite>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        siteName = (EditText)findViewById(R.id.site_name);
        webLink = (EditText)findViewById(R.id.web_link);

        buttonSave = (Button)findViewById(R.id.button_save);
        list = (ListView)findViewById(R.id.websites);
        internet = (WebView)findViewById(R.id.internet);
        WebSettings webSettings = internet.getSettings();
        webSettings.setJavaScriptEnabled(true);
        internet.setWebViewClient(new WebViewClient());
        host = (TabHost)findViewById(R.id.tabHost);
        adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, model);
        buttonSave.setOnClickListener(this);
        list.setAdapter(adapter);
        list.setOnItemClickListener(this);
        host.setup();
        TabHost.TabSpec spec = host.newTabSpec("Input");
        spec.setContent(R.id.input_tab);
        spec.setIndicator("Input");
        host.addTab(spec);

        spec = host.newTabSpec("List");
        spec.setContent(R.id.list_tab);
        spec.setIndicator("List");
        host.addTab(spec);

        spec = host.newTabSpec("Internet");
        spec.setContent(R.id.internet_tab);
        spec.setIndicator("Internet");
        host.addTab(spec);
        host.setCurrentTab(0);
        internet.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);


    }

    @Override
    public void onClick(View view) {
        if (view == buttonSave) {
            String name, link;
            name = siteName.getText().toString();
            link = webLink.getText().toString();
            WebSite ws = new WebSite();
            ws.setWebname(name);
            ws.setWeblink(link);
            adapter.add(ws);
        }
    }

    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        WebSite ws = model.get(i);
        String link = ws.getWeblink();
        if (link.contains("http://"))
            internet.loadUrl(link);
        else
            internet.loadUrl("http://"+link);
        this.host.setCurrentTab(2);
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        // Check if the key event was the Back button and if there's history
        if ((keyCode == KeyEvent.KEYCODE_BACK) && internet.canGoBack()) {
            internet.goBack();
            return true;
        } else if ((keyCode == KeyEvent.KEYCODE_BACK) && (host.getCurrentTab() == 2)) {
            host.setCurrentTab(1);
        } else if ((keyCode == KeyEvent.KEYCODE_BACK) && (host.getCurrentTab() == 1) ) {
            host.setCurrentTab(0);
        } else if ((keyCode == KeyEvent.KEYCODE_BACK) && (host.getCurrentTab() == 0)) {
            return super.onKeyDown(keyCode, event);
        }
        return false;
    }

}