package io.quarkus.it.kubernetes;

import static io.restassured.RestAssured.given;
import static org.assertj.core.api.Assertions.assertThat;
import static org.hamcrest.Matchers.is;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Collections;
import java.util.List;

import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;

import io.fabric8.kubernetes.api.model.HasMetadata;
import io.quarkus.bootstrap.model.AppArtifact;
import io.quarkus.test.LogFile;
import io.quarkus.test.ProdBuildResults;
import io.quarkus.test.ProdModeTestResults;
import io.quarkus.test.QuarkusProdModeTest;

public class WithKubernetesClientTest {

    @RegisterExtension
    static final QuarkusProdModeTest config = new QuarkusProdModeTest()
            .setArchiveProducer(() -> ShrinkWrap.create(JavaArchive.class).addClasses(GreetingResource.class))
            .setApplicationName("kubernetes-with-client")
            .setApplicationVersion("0.1-SNAPSHOT")
            .setRun(true)
            .setLogFileName("k8s.log")
            .setForcedDependencies(
                    Collections.singletonList(
                            new AppArtifact("io.quarkus", "quarkus-kubernetes-client", TestUtil.getProjectVersion())));

    @ProdBuildResults
    private ProdModeTestResults prodModeTestResults;

    @LogFile
    private Path logfile;

    @Test
    public void asertApplicationRuns() throws IOException {
        assertThat(logfile).isRegularFile().hasFileName("k8s.log");
        String entireLogContent = String.join("\n", Files.readAllLines(logfile));
        assertThat(entireLogContent).contains("kubernetes").contains("kubernetes-client");

        given()
                .when().get("/greeting")
                .then()
                .statusCode(200)
                .body(is("hello"));
    }

    @Test
    public void assertGeneratedResources() throws IOException {
        final Path kubernetesDir = prodModeTestResults.getBuildDir().resolve("kubernetes");
        assertThat(kubernetesDir)
                .isDirectoryContaining(p -> p.getFileName().endsWith("kubernetes.json"))
                .isDirectoryContaining(p -> p.getFileName().endsWith("kubernetes.yml"));
        List<HasMetadata> kubernetesList = DeserializationUtil
                .deserializeAsList(kubernetesDir.resolve("kubernetes.yml"));

        assertThat(kubernetesList).filteredOn(h -> "ServiceAccount".equals(h.getKind())).hasOnlyOneElementSatisfying(h -> {
            assertThat(h.getMetadata().getName()).isEqualTo("kubernetes-with-client");
        });

        assertThat(kubernetesList).filteredOn(h -> "RoleBinding".equals(h.getKind())).hasOnlyOneElementSatisfying(h -> {
            assertThat(h.getMetadata().getName()).isEqualTo("kubernetes-with-client:view");
        });
    }
}
