package com.lwasiele.repositories.service.impl;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import com.lwasiele.repositories.RepositoriesApplication;
import com.lwasiele.repositories.controller.exceptions.BadRequestException;
import com.lwasiele.repositories.model.RepositoryDetailsDTO;
import com.lwasiele.repositories.service.api.RepositoryService;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.skyscreamer.jsonassert.JSONAssert;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.http.*;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit4.SpringRunner;

import static com.github.tomakehurst.wiremock.client.WireMock.*;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.springframework.test.util.AssertionErrors.assertTrue;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = RepositoriesApplication.class)
@TestPropertySource(locations = "classpath:test.properties")
public class RepositoryServiceImplTest {
    private static final String EXPECTED_RESPONSE =
            "{" +
                    "\"full_name\":\"iluwatar/java-design-patterns\"," +
                    "\"description\":\"Design patterns implemented in Java\"," +
                    "\"clone_url\":\"https://github.com/iluwatar/java-design-patterns.git\"," +
                    "\"stargazers_count\":44606," +
                    "\"created_at\":\"2014-08-09T16:45:18Z\"" +
                    "}";

    private static final String BODY = "{\n" +
            "  \"id\": 22790488,\n" +
            "  \"node_id\": \"MDEwOlJlcG9zaXRvcnkyMjc5MDQ4OA==\",\n" +
            "  \"name\": \"java-design-patterns\",\n" +
            "  \"full_name\": \"iluwatar/java-design-patterns\",\n" +
            "  \"private\": false,\n" +
            "  \"owner\": {\n" +
            "    \"login\": \"iluwatar\",\n" +
            "    \"id\": 582346,\n" +
            "    \"node_id\": \"MDQ6VXNlcjU4MjM0Ng==\",\n" +
            "    \"avatar_url\": \"https://avatars1.githubusercontent.com/u/582346?v=4\",\n" +
            "    \"gravatar_id\": \"\",\n" +
            "    \"url\": \"https://api.github.com/users/iluwatar\",\n" +
            "    \"html_url\": \"https://github.com/iluwatar\",\n" +
            "    \"followers_url\": \"https://api.github.com/users/iluwatar/followers\",\n" +
            "    \"following_url\": \"https://api.github.com/users/iluwatar/following{/other_user}\",\n" +
            "    \"gists_url\": \"https://api.github.com/users/iluwatar/gists{/gist_id}\",\n" +
            "    \"starred_url\": \"https://api.github.com/users/iluwatar/starred{/owner}{/repo}\",\n" +
            "    \"subscriptions_url\": \"https://api.github.com/users/iluwatar/subscriptions\",\n" +
            "    \"organizations_url\": \"https://api.github.com/users/iluwatar/orgs\",\n" +
            "    \"repos_url\": \"https://api.github.com/users/iluwatar/repos\",\n" +
            "    \"events_url\": \"https://api.github.com/users/iluwatar/events{/privacy}\",\n" +
            "    \"received_events_url\": \"https://api.github.com/users/iluwatar/received_events\",\n" +
            "    \"type\": \"User\",\n" +
            "    \"site_admin\": false\n" +
            "  },\n" +
            "  \"html_url\": \"https://github.com/iluwatar/java-design-patterns\",\n" +
            "  \"description\": \"Design patterns implemented in Java\",\n" +
            "  \"fork\": false,\n" +
            "  \"url\": \"https://api.github.com/repos/iluwatar/java-design-patterns\",\n" +
            "  \"forks_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/forks\",\n" +
            "  \"keys_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/keys{/key_id}\",\n" +
            "  \"collaborators_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/collaborators{/collaborator}\",\n" +
            "  \"teams_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/teams\",\n" +
            "  \"hooks_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/hooks\",\n" +
            "  \"issue_events_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/issues/events{/number}\",\n" +
            "  \"events_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/events\",\n" +
            "  \"assignees_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/assignees{/user}\",\n" +
            "  \"branches_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/branches{/branch}\",\n" +
            "  \"tags_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/tags\",\n" +
            "  \"blobs_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/git/blobs{/sha}\",\n" +
            "  \"git_tags_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/git/tags{/sha}\",\n" +
            "  \"git_refs_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/git/refs{/sha}\",\n" +
            "  \"trees_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/git/trees{/sha}\",\n" +
            "  \"statuses_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/statuses/{sha}\",\n" +
            "  \"languages_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/languages\",\n" +
            "  \"stargazers_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/stargazers\",\n" +
            "  \"contributors_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/contributors\",\n" +
            "  \"subscribers_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/subscribers\",\n" +
            "  \"subscription_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/subscription\",\n" +
            "  \"commits_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/commits{/sha}\",\n" +
            "  \"git_commits_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/git/commits{/sha}\",\n" +
            "  \"comments_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/comments{/number}\",\n" +
            "  \"issue_comment_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/issues/comments{/number}\",\n" +
            "  \"contents_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/contents/{+path}\",\n" +
            "  \"compare_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/compare/{base}...{head}\",\n" +
            "  \"merges_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/merges\",\n" +
            "  \"archive_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/{archive_format}{/ref}\",\n" +
            "  \"downloads_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/downloads\",\n" +
            "  \"issues_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/issues{/number}\",\n" +
            "  \"pulls_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/pulls{/number}\",\n" +
            "  \"milestones_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/milestones{/number}\",\n" +
            "  \"notifications_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/notifications{?since,all,participating}\",\n" +
            "  \"labels_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/labels{/name}\",\n" +
            "  \"releases_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/releases{/id}\",\n" +
            "  \"deployments_url\": \"https://api.github.com/repos/iluwatar/java-design-patterns/deployments\",\n" +
            "  \"created_at\": \"2014-08-09T16:45:18Z\",\n" +
            "  \"updated_at\": \"2019-02-19T06:26:27Z\",\n" +
            "  \"pushed_at\": \"2019-02-18T17:08:41Z\",\n" +
            "  \"git_url\": \"git://github.com/iluwatar/java-design-patterns.git\",\n" +
            "  \"ssh_url\": \"git@github.com:iluwatar/java-design-patterns.git\",\n" +
            "  \"clone_url\": \"https://github.com/iluwatar/java-design-patterns.git\",\n" +
            "  \"svn_url\": \"https://github.com/iluwatar/java-design-patterns\",\n" +
            "  \"homepage\": \"http://java-design-patterns.com\",\n" +
            "  \"size\": 18708,\n" +
            "  \"stargazers_count\": 44606,\n" +
            "  \"watchers_count\": 44606,\n" +
            "  \"language\": \"Java\",\n" +
            "  \"has_issues\": true,\n" +
            "  \"has_projects\": false,\n" +
            "  \"has_downloads\": true,\n" +
            "  \"has_wiki\": true,\n" +
            "  \"has_pages\": true,\n" +
            "  \"forks_count\": 14455,\n" +
            "  \"mirror_url\": null,\n" +
            "  \"archived\": false,\n" +
            "  \"open_issues_count\": 189,\n" +
            "  \"license\": {\n" +
            "    \"key\": \"mit\",\n" +
            "    \"name\": \"MIT License\",\n" +
            "    \"spdx_id\": \"MIT\",\n" +
            "    \"url\": \"https://api.github.com/licenses/mit\",\n" +
            "    \"node_id\": \"MDc6TGljZW5zZTEz\"\n" +
            "  },\n" +
            "  \"forks\": 14455,\n" +
            "  \"open_issues\": 189,\n" +
            "  \"watchers\": 44606,\n" +
            "  \"default_branch\": \"master\",\n" +
            "  \"network_count\": 14455,\n" +
            "  \"subscribers_count\": 3846\n" +
            "}";

    private int serverPort = 8089;

    TestRestTemplate testRestTemplate;

    HttpHeaders httpHeaders;

    HttpEntity<String> entity;

    @Autowired
    RepositoryService repositoryService;

    @Before
    public void setUp() {
        testRestTemplate = new TestRestTemplate();
        httpHeaders = new HttpHeaders();
        entity = new HttpEntity<>(null, httpHeaders);
    }

    @Rule
    public WireMockRule wireMockRule = new WireMockRule(serverPort);


    @Test
    public void shouldGetRepositoryDetails() throws Exception {
        //given
        stubFor(get(urlMatching("/repos/test/test"))
                .willReturn(aResponse()
                        .withStatus(200)
                        .withHeader("Content-Type", "application/json")
                        .withBody(BODY)
                )
        );
        //when
        RepositoryDetailsDTO repositoryDetails = repositoryService.getRepositoryDetails("test", "test");
        String repositoryDetailsString = getRepositoryDetailsString(repositoryDetails);
        //then
        JSONAssert.assertEquals(EXPECTED_RESPONSE, repositoryDetailsString, false);
    }

    @Test
    public void shouldThrowBadRequestExceptionWhenAddressIsInvalid() {
        //given
        stubFor(get(urlMatching("/repos/test/test"))
                .willReturn(aResponse()
                        .withStatus(200)
                )
        );
        assertThrows(BadRequestException.class, () -> repositoryService.getRepositoryDetails("test1", "test1"));
    }

    @Test
    public void shouldThrowBadRequestExceptionWhenServiceIsUnavailable() {
        //given
        stubFor(get(urlMatching("/repos/test/test"))
                .willReturn(aResponse()
                        .withStatus(503)
                )
        );
        assertThrows(BadRequestException.class, () -> repositoryService.getRepositoryDetails("test", "test"));
    }


    private String getRepositoryDetailsString(RepositoryDetailsDTO repositoryDetails) throws JsonProcessingException {
        ObjectMapper objectMapper = new ObjectMapper();
        return objectMapper.writeValueAsString(repositoryDetails);
    }
}