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package io.quarkus.devservices.mssql.deployment;

import static io.quarkus.datasource.deployment.spi.DatabaseDefaultSetupConfig.DEFAULT_DATABASE_STRONG_PASSWORD;

import java.time.Duration;
import java.util.List;
import java.util.Optional;
import java.util.OptionalInt;

import org.jboss.logging.Logger;
import org.testcontainers.containers.MSSQLServerContainer;
import org.testcontainers.utility.DockerImageName;

import io.quarkus.datasource.common.runtime.DatabaseKind;
import io.quarkus.datasource.deployment.spi.DevServicesDatasourceContainerConfig;
import io.quarkus.datasource.deployment.spi.DevServicesDatasourceProvider;
import io.quarkus.datasource.deployment.spi.DevServicesDatasourceProviderBuildItem;
import io.quarkus.deployment.annotations.BuildStep;
import io.quarkus.deployment.builditem.DevServicesSharedNetworkBuildItem;
import io.quarkus.deployment.dev.devservices.GlobalDevServicesConfig;
import io.quarkus.devservices.common.ConfigureUtil;
import io.quarkus.devservices.common.ContainerShutdownCloseable;
import io.quarkus.devservices.common.JBossLoggingConsumer;
import io.quarkus.devservices.common.Labels;
import io.quarkus.devservices.common.Volumes;
import io.quarkus.runtime.LaunchMode;

public class MSSQLDevServicesProcessor {

    private static final Logger LOG = Logger.getLogger(MSSQLDevServicesProcessor.class);

    /**
     * Using SA doesn't work with all collations so let's use the lowercase version instead.
     */
    private static final String DEFAULT_USERNAME = "sa";

    @BuildStep
    DevServicesDatasourceProviderBuildItem setupMSSQL(
            List devServicesSharedNetworkBuildItem,
            GlobalDevServicesConfig globalDevServicesConfig) {
        return new DevServicesDatasourceProviderBuildItem(DatabaseKind.MSSQL, new DevServicesDatasourceProvider() {
            @SuppressWarnings("unchecked")
            @Override
            public RunningDevServicesDatasource startDatabase(Optional username, Optional password,
                    String datasourceName, DevServicesDatasourceContainerConfig containerConfig,
                    LaunchMode launchMode, Optional startupTimeout) {

                boolean useSharedNetwork = DevServicesSharedNetworkBuildItem.isSharedNetworkRequired(globalDevServicesConfig,
                        devServicesSharedNetworkBuildItem);
                QuarkusMSSQLServerContainer container = new QuarkusMSSQLServerContainer(containerConfig.getImageName(),
                        containerConfig.getFixedExposedPort(),
                        !devServicesSharedNetworkBuildItem.isEmpty());
                startupTimeout.ifPresent(container::withStartupTimeout);

                String effectivePassword = containerConfig.getPassword()
                        .orElse(password.orElse(DEFAULT_DATABASE_STRONG_PASSWORD));

                // Defining the database name and the username is not supported by this container yet
                container.withPassword(effectivePassword)
                        .withReuse(containerConfig.isReuse());
                Labels.addDataSourceLabel(container, datasourceName);
                Volumes.addVolumes(container, containerConfig.getVolumes());

                container.withEnv(containerConfig.getContainerEnv());

                containerConfig.getAdditionalJdbcUrlProperties().forEach(container::withUrlParam);
                containerConfig.getCommand().ifPresent(container::setCommand);
                containerConfig.getInitScriptPath().ifPresent(container::withInitScript);
                if (containerConfig.isShowLogs()) {
                    container.withLogConsumer(new JBossLoggingConsumer(LOG));
                }

                container.start();

                LOG.info("Dev Services for Microsoft SQL Server started.");

                return new RunningDevServicesDatasource(container.getContainerId(),
                        container.getEffectiveJdbcUrl(),
                        container.getReactiveUrl(),
                        DEFAULT_USERNAME,
                        container.getPassword(),
                        new ContainerShutdownCloseable(container, "Microsoft SQL Server"));
            }
        });
    }

    private static class QuarkusMSSQLServerContainer extends MSSQLServerContainer {
        private final OptionalInt fixedExposedPort;
        private final boolean useSharedNetwork;

        private String hostName = null;

        public QuarkusMSSQLServerContainer(Optional imageName, OptionalInt fixedExposedPort, boolean useSharedNetwork) {
            super(DockerImageName
                    .parse(imageName.orElseGet(() -> ConfigureUtil.getDefaultImageNameFor("mssql")))
                    .asCompatibleSubstituteFor(MSSQLServerContainer.IMAGE));
            this.fixedExposedPort = fixedExposedPort;
            this.useSharedNetwork = useSharedNetwork;
        }

        @Override
        protected void configure() {
            super.configure();

            if (useSharedNetwork) {
                hostName = ConfigureUtil.configureSharedNetwork(this, "mssql");
                return;
            }

            if (fixedExposedPort.isPresent()) {
                addFixedExposedPort(fixedExposedPort.getAsInt(), MSSQLServerContainer.MS_SQL_SERVER_PORT);
            } else {
                addExposedPort(MS_SQL_SERVER_PORT);
            }
        }

        // this is meant to be called by Quarkus code and is needed in order to not disrupt testcontainers
        // from being able to determine the status of the container (which it does by trying to acquire a connection)
        public String getEffectiveJdbcUrl() {
            if (useSharedNetwork) {
                // in this case we expose the URL using the network alias we created in 'configure'
                // and the container port since the application communicating with this container
                // won't be doing port mapping
                String additionalUrlParams = constructUrlParameters(";", ";");
                return "jdbc:sqlserver://" + hostName + ":" + MS_SQL_SERVER_PORT + additionalUrlParams;
            } else {
                return super.getJdbcUrl();
            }
        }

        public String getReactiveUrl() {
            StringBuilder url = new StringBuilder("vertx-reactive:sqlserver://");
            if (useSharedNetwork) {
                url.append(hostName).append(":").append(MS_SQL_SERVER_PORT);
            } else {
                url.append(this.getHost()).append(":").append(this.getMappedPort(MS_SQL_SERVER_PORT));
            }
            return url.toString();
        }
    }
}