package com.streamrecord.activity;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.widget.TabHost;

import com.streamrecord.R;
import com.streamrecord.util.FragmentAdapter;
import com.streamrecord.util.TabFactory;

public class InitActivity extends AppCompatActivity implements TabHost.OnTabChangeListener, ViewPager.OnPageChangeListener {

    private final int LOGIN_POSITION = 1;
    private final int CREATE_POSITION = 0;
    private TabHost mTabHost;
    private FragmentPagerAdapter adapterViewPager;
    private ViewPager mViewPager;
    private FragmentAdapter mPagerAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_init);
        initialiseTabHost();
        intialiseViewPager();
    }

    public void initialiseTabHost() {
        mTabHost = (TabHost) findViewById(android.R.id.tabhost);
        mTabHost.setup();
        String tabTitle = getString(R.string.create_account_tab);
        TabHost.TabSpec tabSpec = this.mTabHost.newTabSpec(tabTitle).setIndicator(tabTitle);
        tabSpec.setContent(new TabFactory(this));
        mTabHost.addTab(tabSpec);
        tabTitle = getString(R.string.sign_in_tab);
        tabSpec = this.mTabHost.newTabSpec(tabTitle).setIndicator(tabTitle);
        tabSpec.setContent(new TabFactory(this));
        mTabHost.addTab(tabSpec);
        mTabHost.setOnTabChangedListener(this);
    }

    public void intialiseViewPager() {
        this.mPagerAdapter = new FragmentAdapter(super.getSupportFragmentManager());
        this.mViewPager = (ViewPager) super.findViewById(R.id.vpPager);
        this.mViewPager.setAdapter(this.mPagerAdapter);
        this.mViewPager.addOnPageChangeListener(this);
        SharedPreferences prefs = getSharedPreferences(getString(R.string.preference_file_key), Context.MODE_PRIVATE);
        String email = prefs.getString(getString(R.string.email_preference), null);
        if (null == email) {
            this.mViewPager.setCurrentItem(CREATE_POSITION);
        } else {
            this.mViewPager.setCurrentItem(LOGIN_POSITION);
        }
    }

    @Override
    public void onResume() {
        super.onResume();
    }

    @Override
    public void onTabChanged(String tabId) {
        int pos = this.mTabHost.getCurrentTab();
        this.mViewPager.setCurrentItem(pos);
    }

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
    }

    @Override
    public void onPageSelected(int position) {
        this.mTabHost.setCurrentTab(position);
    }

    @Override
    public void onPageScrollStateChanged(int state) {
    }
}