MainActivity.java

package com.mozu.mozuandroidinstoreassistant.app;

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.LinearLayout;

import com.mozu.api.contracts.commerceruntime.orders.Order;
import com.mozu.api.contracts.customer.CustomerAccount;
import com.mozu.api.contracts.productruntime.Category;
import com.mozu.mozuandroidinstoreassistant.app.category.CategoryFragment;
import com.mozu.mozuandroidinstoreassistant.app.category.CategoryFragmentListener;
import com.mozu.mozuandroidinstoreassistant.app.category.CategoryProductFragment;
import com.mozu.mozuandroidinstoreassistant.app.customer.CustomerListener;
import com.mozu.mozuandroidinstoreassistant.app.customer.CustomersFragment;
import com.mozu.mozuandroidinstoreassistant.app.models.authentication.UserAuthenticationStateMachine;
import com.mozu.mozuandroidinstoreassistant.app.models.authentication.UserAuthenticationStateMachineProducer;
import com.mozu.mozuandroidinstoreassistant.app.order.CreateOrderListener;
import com.mozu.mozuandroidinstoreassistant.app.order.NewOrderActivity;
import com.mozu.mozuandroidinstoreassistant.app.order.OrderFragment;
import com.mozu.mozuandroidinstoreassistant.app.order.OrderListener;
import com.mozu.mozuandroidinstoreassistant.app.order.OrderStrings;
import com.mozu.mozuandroidinstoreassistant.app.product.ProductFragment;
import com.mozu.mozuandroidinstoreassistant.app.product.ProductFragmentListener;
import com.mozu.mozuandroidinstoreassistant.app.product.ProductListListener;
import com.mozu.mozuandroidinstoreassistant.app.product.ProductSearchFragment;
import com.mozu.mozuandroidinstoreassistant.app.search.SearchFragment;
import com.mozu.mozuandroidinstoreassistant.app.settings.SettingsFragment;

import java.util.ArrayList;

public class MainActivity extends AuthActivity implements View.OnClickListener, CategoryFragmentListener, ProductFragmentListener, ProductListListener, OrderListener, CustomerListener, CreateOrderListener, SearchFragment.GlobalSearchListener {

    private static final String CATEGORY_FRAGMENT = "category_fragment_taggy_tag_tag";
    private static final String CURRENTLY_SELECTED_NAV_VIEW_ID = "CURRENTLY_SELECTED_NAV_VIEW_ID";
    public static String LAUNCH_SETTINGS = "launchSettings";
    private LinearLayout mSearchMenuLayout;
    private LinearLayout mProductsLayout;
    private LinearLayout mOrdersLayout;
    private LinearLayout mCustomersLayout;
    private DrawerLayout mDrawerLayout;
    private ActionBarDrawerToggle mDrawerToggle;
    private int mCurrentlySelectedNavItem;
    private boolean mLaunchSettings;

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        reloadFragment();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (!getResources().getBoolean(R.bool.allow_portrait)) {
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        }

        setContentView(R.layout.activity_main);
        mLaunchSettings = getIntent().getBooleanExtra(LAUNCH_SETTINGS, false);
        mSearchMenuLayout = (LinearLayout) findViewById(R.id.menu_search_layout);
        mSearchMenuLayout.setOnClickListener(this);

        mProductsLayout = (LinearLayout) findViewById(R.id.menu_products_layout);
        mProductsLayout.setOnClickListener(this);

        mOrdersLayout = (LinearLayout) findViewById(R.id.menu_orders_layout);
        mOrdersLayout.setOnClickListener(this);

        mCustomersLayout = (LinearLayout) findViewById(R.id.menu_customers_layout);
        mCustomersLayout.setOnClickListener(this);

        if (getActionBar() != null) {
            getActionBar().setTitle(R.string.menu_products_text);
            getActionBar().setIcon(getResources().getDrawable(android.R.color.transparent));
            getActionBar().setLogo(getResources().getDrawable(android.R.color.transparent));
            getActionBar().setDisplayUseLogoEnabled(false);
        }
        mProductsLayout.setSelected(true);

        if (savedInstanceState == null) {
            mCurrentlySelectedNavItem = R.id.menu_products_layout;
            initializeCategoryFragment(true);
        } else {
            updateNavView(savedInstanceState.getInt(CURRENTLY_SELECTED_NAV_VIEW_ID, R.id.menu_products_layout));
        }
        if (mLaunchSettings) {
            showSettings();
        }

        setupDrawer();
    }


    @Override
    public void loginSuccess() {

    }

    @Override
    public void loginFailure() {
        startLoginScreen();
    }

    @Override
    public void authError() {
        startLoginScreen();
    }

    @Override
    public void loadingState() {

    }

    @Override
    public void stoppedLoading() {

    }

    private void startLoginScreen() {
        Intent loginIntent = new Intent(this, LoginActivity.class);
        startActivity(loginIntent);
        finish();
    }

    private void setupDrawer() {
        //holder, will show whatever fragment is in main content area
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerToggle = new ActionBarDrawerToggle(
                this,
                mDrawerLayout,
                R.drawable.actionbar_menu_button,
                R.string.drawer_open,
                R.string.drawer_close
        ) {

            /** Called when a drawer has settled in a completely closed state. */
            public void onDrawerClosed(View view) {
                super.onDrawerClosed(view);
            }

            /** Called when a drawer has settled in a completely open state. */
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
            }
        };


        mDrawerLayout.setDrawerListener(mDrawerToggle);
    }


    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        //if (mWasCreatedInPortrait) {
        mDrawerToggle.syncState();
        //}
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (mDrawerToggle != null && mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        } else if (item.getItemId() == R.id.settings) {
            showSettings();
        }

        return super.onOptionsItemSelected(item);
    }

    private void showSettings() {
        SettingsFragment settingsFragment = SettingsFragment.getInstance();
        settingsFragment.show(getFragmentManager(), "main_settings_frag");
    }

    @Override
    public void onClick(View v) {
        updateNavView(v.getId());

        if (v.getId() == R.id.menu_search_layout) {
            initializeSearchFragment();
        } else if (v.getId() == R.id.menu_products_layout) {
            initializeCategoryFragment(false);
        } else if (v.getId() == R.id.menu_orders_layout) {
            initializeOrdersFragment();
        } else if (v.getId() == R.id.menu_customers_layout) {
            initializeCustomersFragment();
        }

        if (mDrawerLayout != null) {
            mDrawerLayout.closeDrawers();
        }
    }

    private void updateNavView(int viewId) {
        mCurrentlySelectedNavItem = viewId;

        mSearchMenuLayout.setSelected(false);
        mProductsLayout.setSelected(false);
        mOrdersLayout.setSelected(false);
        mCustomersLayout.setSelected(false);

        if (viewId == R.id.menu_search_layout) {
            setSearchSelected();
        } else if (viewId == R.id.menu_products_layout) {
            setProductSelected();
        } else if (viewId == R.id.menu_orders_layout) {
            setOrdersSelected();
        } else if (viewId == R.id.menu_customers_layout) {
            setCustomersSelected();
        }
    }

    private void initializeCategoryFragment(boolean isFirstLaunch) {
        if (isFirstLaunch) {
            FragmentManager fragmentManager = getFragmentManager();
            clearBackstack(fragmentManager);
            FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
            CategoryFragment fragment = CategoryFragment.getInstance(null);
            fragmentTransaction.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out, android.R.animator.fade_in, android.R.animator.fade_out);
            fragmentTransaction.replace(R.id.content_fragment_holder, fragment, CATEGORY_FRAGMENT);
            fragmentTransaction.commit();
        } else {
            CategoryFragment fragment = CategoryFragment.getInstance(null);
            addMainFragment(fragment, true);
        }
    }


    private void initializeOrdersFragment() {
        UserAuthenticationStateMachine userStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        OrderFragment fragment = new OrderFragment();
        fragment.setTenantId(userStateMachine.getTenantId());
        fragment.setSiteId(userStateMachine.getSiteId());
        fragment.setListener(this);
        fragment.setOrderCreateListener(this);
        addMainFragment(fragment, true);
    }

    private void initializeCustomersFragment() {
        UserAuthenticationStateMachine userStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        CustomersFragment fragment = new CustomersFragment();
        fragment.setTenantId(userStateMachine.getTenantId());
        fragment.setSiteId(userStateMachine.getSiteId());
        fragment.setListener(this);
        addMainFragment(fragment, true);
    }

    private void initializeProductFragment(Category category) {
        ProductFragment fragment = new ProductFragment();
        fragment.setCategoryId(category.getCategoryId());
        addMainFragment(fragment, true);
    }

    private void initializeSearchFragment() {
        UserAuthenticationStateMachine userStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        SearchFragment fragment = SearchFragment.getInstance(userStateMachine.getTenantId(), userStateMachine.getSiteId());
        addMainFragment(fragment, true);
    }

    private void resetSelected() {
        mProductsLayout.setSelected(false);
        mOrdersLayout.setSelected(false);
        mCustomersLayout.setSelected(false);
        mSearchMenuLayout.setSelected(false);
    }

    public void setProductSelected() {
        resetSelected();
        getActionBar().setTitle(R.string.menu_products_text);
        mProductsLayout.setSelected(true);
    }

    public void setOrdersSelected() {
        resetSelected();
        getActionBar().setTitle(R.string.menu_orders_text);
        mOrdersLayout.setSelected(true);
    }

    public void setCustomersSelected() {
        resetSelected();
        getActionBar().setTitle(R.string.menu_customers_text);
        mCustomersLayout.setSelected(true);

    }

    public void setSearchSelected() {
        resetSelected();
        getActionBar().setTitle(R.string.menu_search_text);
        mSearchMenuLayout.setSelected(true);
    }

    public void addMainFragment(Fragment newFragment, boolean addToBackStack) {
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        Fragment currentFragment = fragmentManager.findFragmentById(R.id.content_fragment_holder);
        if (currentFragment != null) {
            fragmentTransaction.hide(currentFragment);
        }
        fragmentTransaction.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out, android.R.animator.fade_in, android.R.animator.fade_out);
        fragmentTransaction.add(R.id.content_fragment_holder, newFragment);
        if (addToBackStack) {
            fragmentTransaction.addToBackStack(null);
        }
        fragmentTransaction.commit();
    }


    public void reloadFragment() {

        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        Fragment currentFragment = fragmentManager.findFragmentById(R.id.content_fragment_holder);
        if (!(currentFragment instanceof SearchFragment)) {
            fragmentTransaction.detach(currentFragment);
            fragmentTransaction.attach(currentFragment);
            fragmentTransaction.commitAllowingStateLoss();
        }
    }


    @Override
    public void onBackPressed() {
        FragmentManager fragmentManager = getFragmentManager();
        Fragment currentFragment = fragmentManager.findFragmentById(R.id.content_fragment_holder);
        if (currentFragment instanceof SearchFragment) {
            ((SearchFragment) currentFragment).onBackPressed();
        } else {
            super.onBackPressed();
            reloadFragment();
        }

    }

    private void clearBackstack(FragmentManager fragmentManager) {
        while (getFragmentManager().getBackStackEntryCount() > 0) {
            fragmentManager.popBackStackImmediate();
        }
    }


    @Override
    public void onCategoryChosen(Category category) {
        if (category.getChildrenCategories() != null && category.getChildrenCategories().size() > 0) {
            addChildCategoryFragment(category);
        } else {
            initializeProductFragment(category);
        }
    }

    @Override
    public void onSearchPerformedFromCategory(int currentCategoryId, String query) {
        showProductSearchFragment(currentCategoryId, query);
    }

    @Override
    public void onSearchPerformedFromProduct(int currentCategoryId, String query) {
        showProductSearchFragment(currentCategoryId, query);
    }

    private void showProductSearchFragment(int categoryId, String query) {
        ProductSearchFragment fragment = new ProductSearchFragment();
        fragment.setCategoryId(categoryId);
        fragment.setQueryString(query);
        addMainFragment(fragment, true);
    }

    @Override
    public void onProductSelected(String productCodeSelected) {
        onProductChoosen(productCodeSelected);
    }

    @Override
    public void onProductChoosentFromProuct(String productCode) {
        onProductChoosen(productCode);
    }

    private void onProductChoosen(String productCode) {

        Intent intent = new Intent(this, ProductDetailActivity.class);
        UserAuthenticationStateMachine userAuthenticationStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);

        intent.putExtra(ProductDetailActivity.PRODUCT_CODE_EXTRA_KEY, productCode);
        intent.putExtra(ProductDetailActivity.CURRENT_TENANT_ID, userAuthenticationStateMachine.getTenantId());
        intent.putExtra(ProductDetailActivity.CURRENT_SITE_ID, userAuthenticationStateMachine.getSiteId());

        startActivity(intent);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        outState.putInt(CURRENTLY_SELECTED_NAV_VIEW_ID, mCurrentlySelectedNavItem);
        super.onSaveInstanceState(outState);
    }

    @Override
    public void orderSelected(Order order, ArrayList<String> orderList, int position) {
        UserAuthenticationStateMachine userAuthenticationStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        if (order.getStatus().equalsIgnoreCase(OrderStrings.PENDING)) {
            Intent intent = new Intent(this, NewOrderActivity.class);
            intent.putExtra(NewOrderActivity.ORDER_EXTRA_KEY, order.getId());
            startActivity(intent);
        } else {
            Intent intent = new Intent(this, OrderDetailActivity.class);
            intent.putExtra(OrderDetailActivity.ORDER_NUMBER_EXTRA_KEY, order.getId());
            intent.putExtra(OrderDetailActivity.ORDER_LIST, orderList);
            intent.putExtra(OrderDetailActivity.ORDER_LIST_POSITION, position);
            intent.putExtra(OrderDetailActivity.CURRENT_TENANT_ID, userAuthenticationStateMachine.getTenantId());
            intent.putExtra(OrderDetailActivity.CURRENT_SITE_ID, userAuthenticationStateMachine.getSiteId());
            startActivity(intent);
        }
    }

    @Override
    public void createNewOrder() {
        UserAuthenticationStateMachine userAuthenticationStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        Intent intent = new Intent(this, OrderCreationAddCustomerActivity.class);

        intent.putExtra(OrderDetailActivity.CURRENT_TENANT_ID, userAuthenticationStateMachine.getTenantId());
        intent.putExtra(OrderDetailActivity.CURRENT_SITE_ID, userAuthenticationStateMachine.getSiteId());

        startActivity(intent);
    }

    @Override
    public void customerSelected(CustomerAccount customer) {
        Intent intent = new Intent(this, CustomerDetailActivity.class);
        intent.putExtra(CustomerDetailActivity.CUSTOMER_ID, customer.getId());
        startActivity(intent);
    }

    @Override
    public void onOrderLaunch(String searchQuery) {
        UserAuthenticationStateMachine userStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        OrderFragment fragment = new OrderFragment();
        fragment.setTenantId(userStateMachine.getTenantId());
        fragment.setSiteId(userStateMachine.getSiteId());
        fragment.setListener(this);
        fragment.setLaunchFromGlobalSearch(true);
        fragment.setDefaultSearchQuery(searchQuery);
        addMainFragment(fragment, true);
    }

    @Override
    public void launchProductSearch(String searchQuery) {
        ProductSearchFragment fragment = new ProductSearchFragment();
        fragment.setCategoryId(0);
        fragment.setQueryString(searchQuery);
        fragment.setLaunchedFromSearch();
        addMainFragment(fragment, true);
    }

    private void addChildCategoryFragment(Category category) {
        CategoryProductFragment categoryFragment = CategoryProductFragment.getInstance(category);
        addMainFragment(categoryFragment, true);
    }


    @Override
    public void launchCustomerSearch(String searchQuery) {
        UserAuthenticationStateMachine userStateMachine = UserAuthenticationStateMachineProducer.getInstance(this);
        CustomersFragment fragment = new CustomersFragment();
        fragment.setTenantId(userStateMachine.getTenantId());
        fragment.setSiteId(userStateMachine.getSiteId());
        fragment.setListener(this);
        fragment.setDefaultSearchQuery(searchQuery);
        fragment.setLauncedFromSearch();
        addMainFragment(fragment, true);
    }
}