package com.example;

import io.dropwizard.core.Application;
import io.dropwizard.core.Configuration;
import io.dropwizard.core.cli.CheckCommand;
import io.dropwizard.core.cli.Cli;
import io.dropwizard.core.setup.Bootstrap;
import io.dropwizard.core.setup.Environment;
import io.dropwizard.util.JarLocation;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.RepeatedTest;
import org.junit.jupiter.api.io.TempDir;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.nio.file.Files;
import java.nio.file.Path;

import static org.assertj.core.api.Assertions.assertThat;

class CheckCommandTest {

    @TempDir
    private static Path tempDir;
    private static Path confiYml;

    private static class MyApplication extends Application<Configuration> {
        @Override
        public void run(Configuration configuration, Environment environment) throws Exception {
        }
    }

    private final MyApplication application = new MyApplication();
    private final JarLocation location = new JarLocation(MyApplication.class);
    private final CheckCommand<Configuration> command = new CheckCommand<>(application);

    @BeforeAll
    static void beforeAll() throws IOException {
        String config = """
                logging:
                  appenders:
                    - type: console
                      logFormat: "%msg"
                """;

        confiYml = tempDir.resolve("config.yml");
        Files.writeString(confiYml, config);
    }

    @RepeatedTest(100)
    void shouldWriteToStdOut() {
        PrintStream originalOut = System.out;
        ByteArrayOutputStream stdOut = new ByteArrayOutputStream();
        System.setOut(new PrintStream(stdOut));

        Bootstrap<Configuration> bootstrap = new Bootstrap<>(application);
        bootstrap.addCommand(command);

        Cli cli = new Cli(location, bootstrap, stdOut, System.err);
        cli.run("check", confiYml.toAbsolutePath().toString());

        assertThat(stdOut.toString())
                .isEqualTo("Configuration is OK");

        System.setOut(originalOut);
    }

}