GitNex-Android-App/app/src/main/java/org/mian/gitnex/viewmodels/RepositoriesViewModel.java

package org.mian.gitnex.viewmodels;

import android.content.Context;
import androidx.annotation.NonNull;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.ViewModel;
import org.gitnex.tea4j.v2.models.Repository;
import org.mian.gitnex.R;
import org.mian.gitnex.adapters.ReposListAdapter;
import org.mian.gitnex.clients.RetrofitClient;
import org.mian.gitnex.helpers.Toasty;
import java.util.List;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

/**
 * @author M M Arif
 */

public class RepositoriesViewModel extends ViewModel {

    private MutableLiveData<List<Repository>> reposList;

    public LiveData<List<Repository>> getRepositories(int page, int resultLimit, String userLogin, String type, String orgName, Context ctx) {

    	reposList = new MutableLiveData<>();
    	loadReposList(page, resultLimit, userLogin, type, orgName, ctx);

        return reposList;
    }

    public void loadReposList(int page, int resultLimit, String userLogin, String type, String orgName, Context ctx) {

	    Call<List<Repository>> call;

	    switch(type) {
		    case "starredRepos":
			    call = RetrofitClient.getApiInterface(ctx).userCurrentListStarred(page, resultLimit);
			    break;
		    case "myRepos":
			    call = RetrofitClient.getApiInterface(ctx).userListRepos(userLogin, page, resultLimit);
			    break;
		    case "org":
			    call = RetrofitClient.getApiInterface(ctx).orgListRepos(orgName, page, resultLimit);
			    break;
		    case "team":
				call = RetrofitClient.getApiInterface(ctx).orgListTeamRepos(Long.valueOf(userLogin), page, resultLimit);
				break;
		    default:
			    call = RetrofitClient.getApiInterface(ctx).userCurrentListRepos(page, resultLimit);
			    break;
	    }

        call.enqueue(new Callback<>() {

            @Override
            public void onResponse(@NonNull Call<List<Repository>> call, @NonNull Response<List<Repository>> response) {

		        if(response.isSuccessful()) {
			        if(response.code() == 200) {
				        reposList.postValue(response.body());
			        }
		        }
		        else {
			        Toasty.error(ctx, ctx.getString(R.string.genericError));
		        }
	        }

	        @Override
	        public void onFailure(@NonNull Call<List<Repository>> call, @NonNull Throwable t) {

		        Toasty.error(ctx, ctx.getString(R.string.genericServerResponseError));
	        }

        });
    }

	public void loadMoreRepos(int page, int resultLimit, String userLogin, String type, String orgName, Context ctx, ReposListAdapter adapter) {

		Call<List<Repository>> call;

		switch(type) {
			case "starredRepos":
				call = RetrofitClient.getApiInterface(ctx).userCurrentListStarred(page, resultLimit);
				break;
			case "myRepos":
				call = RetrofitClient.getApiInterface(ctx).userListRepos(userLogin, page, resultLimit);
				break;
			case "org":
				call = RetrofitClient.getApiInterface(ctx).orgListRepos(orgName, page, resultLimit);
				break;
			case "team":
				call = RetrofitClient.getApiInterface(ctx).orgListTeamRepos(Long.valueOf(userLogin), page, resultLimit);
				break;
			default:
				call = RetrofitClient.getApiInterface(ctx).userCurrentListRepos(page, resultLimit);
				break;
		}

		call.enqueue(new Callback<>() {

			@Override
			public void onResponse(@NonNull Call<List<Repository>> call, @NonNull Response<List<Repository>> response) {

				if(response.isSuccessful()) {
					List<Repository> list = reposList.getValue();
					assert list != null;
					assert response.body() != null;

					if(response.body().size() != 0) {
						list.addAll(response.body());
						adapter.updateList(list);
					}
					else {
						adapter.setMoreDataAvailable(false);
					}
				}
				else {
					Toasty.error(ctx, ctx.getString(R.string.genericError));
				}
			}

			@Override
			public void onFailure(@NonNull Call<List<Repository>> call, @NonNull Throwable t) {

				Toasty.error(ctx, ctx.getString(R.string.genericServerResponseError));
			}
		});
	}
}