package com.harukaedu.lms.bases;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

import androidx.annotation.LayoutRes;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.databinding.DataBindingUtil;
import androidx.databinding.ViewDataBinding;

public abstract class BaseDataBindingActivity<VDB extends ViewDataBinding> extends AppCompatActivity {
    @LayoutRes
    protected abstract int getContentView();
    protected abstract void initViews();
    protected abstract void initDataBinding(VDB bindingData);

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        onPreCreateView(savedInstanceState);
        VDB binding = DataBindingUtil.setContentView(this, getContentView());
        initDataBinding(binding);

        if (getIntent().getExtras() != null)
            collectExtras(getIntent().getExtras());

        if (savedInstanceState != null)
            onLoadSavedInstanceState(savedInstanceState);

        onPostCreateView(savedInstanceState);
    }

    protected void changePage(Class<? extends Activity> cls){
        changePage(cls, (Bundle) null, (Integer) null);
    }

    protected void changePage(Class<? extends Activity> cls, Bundle bundle){
        changePage(cls, bundle, (Integer) null);
    }

    protected void changePage(Class<? extends Activity> cls, Integer... flags){
        changePage(cls, null, flags);
    }

    protected void changePage(Class<? extends Activity> cls, Bundle bundle, Integer... flags){
        Intent intent = new Intent(this, cls);

        if (bundle != null)
            intent.putExtras(bundle);

        if (flags != null){
            for (Integer flag : flags){
                if (flag != null)
                    intent.addFlags(flag);
            }
        }

        startActivity(intent);
    }

    protected void changePageOnResult(Class<? extends Activity> cls, int requestCode){
        changePageOnResult(cls, null, requestCode);
    }

    protected void changePageOnResult(Class<? extends Activity> cls, Bundle bundle, int requestCode){
        Intent intent = new Intent(this, cls);

        if (bundle != null)
            intent.putExtras(bundle);

        startActivityForResult(intent, requestCode);
    }

    protected void collectExtras(Bundle bundle){
        //call when getIntent().getExtras() is not null
    }

    protected void onPreCreateView(Bundle savedInstanceState){
        //call before setContentView
    }

    protected void onLoadSavedInstanceState(Bundle savedInstanceState){
        //call when savedInstanceState is not null
    }

    protected void onPostCreateView(Bundle savedInstanceState){
        //call after initViews()
    }
}