import 'dart:typed_data';

import '../about/external/data/Docker.dart';
import '../about/external/data/Health.dart';
import '../about/external/data/Kafka.dart';
import '../about/external/data/Redis.dart';
import '../about/internal/application/ServerProfile.dart';
import '../about/internal/application/ServiceConfig.dart';
import '../about/internal/application/StepTracker.dart';
import 'Comms.dart';

/// The transport contract: everything Peach can ask a remote server to do.
/// In the Autoreceptive reference this is the HTTP surface; here the wire is
/// SSH, but the role is identical — one abstract description of every remote
/// call, implemented by exactly one class ([SshService]) and reached only
/// through the [DataManager].
abstract class ConnectComms {
  // ── session ───────────────────────────────────────────────────────────────
  bool get isConnected;
  bool get canRevert;
  Stream<LogLine> get logs;
  Stream<TransferProgress?> get transferProgress;
  Stream<List<DeployStep>> get stepStream;

  Future<void> connect(ServerProfile s);
  void requestCancel();
  void disconnect();
  void dispose();

  // ── deployment ────────────────────────────────────────────────────────────
  Future<DeployResult> deploy({
    required ServerProfile server,
    required ServiceConfig service,
    required Uint8List jarBytes,
    required String jarLabel,
  });

  Future<DeployResult> deployWeb({
    required ServerProfile server,
    required ServiceConfig service,
    required Uint8List archiveBytes,
    required int fileCount,
  });

  Future<DeployResult> restartOnly(ServerProfile server, ServiceConfig service);

  Future<DeployResult> revert();

  Future<void> discardBackup();

  // ── provisioning ──────────────────────────────────────────────────────────
  Future<DeployResult> installSystemdUnit({
    required ServerProfile server,
    required String unitName,
    required String unitContent,
    bool enable = true,
    bool startNow = true,
  });

  Future<String> detectPackageManager(ServerProfile server);

  Future<Map<String, String>> probeEnvironment(
    ServerProfile server,
    List<String> detectByKey,
  );

  Future<DeployResult> installEnvironment({
    required ServerProfile server,
    required String command,
    required List<String> units,
  });

  Future<DeployResult> installPackages({
    required ServerProfile server,
    required String command,
    String? enableUnit,
  });

  // ── service & health ──────────────────────────────────────────────────────
  Future<HealthResult> checkHealth(ServerProfile server, ServiceConfig service);

  Future<String> serviceStatus(ServerProfile server, ServiceConfig service);

  Future<DeployResult> serviceControl(
    ServerProfile server,
    ServiceConfig service,
    String action,
  );

  Future<List<String>> nginxRoots(ServerProfile server);

  // ── logs ──────────────────────────────────────────────────────────────────
  Future<void> fetchLogs(
    ServerProfile server,
    ServiceConfig service, {
    DateTime? since,
    DateTime? until,
  });

  Future<void> followLogs(ServerProfile server, ServiceConfig service);

  void stopLogs();

  // ── redis ─────────────────────────────────────────────────────────────────
  Future<(bool, String)> redisPing(
    ServerProfile server, {
    String host,
    int port,
    String pass,
    int db,
  });

  Future<String> redisConfigPassword(ServerProfile server);

  Future<int> redisDbSize(
    ServerProfile server, {
    String host,
    int port,
    String pass,
    int db,
  });

  Future<(int, Map<int, int>)> redisDatabases(
    ServerProfile server, {
    String host,
    int port,
    String pass,
  });

  Future<List<(String, String)>> redisKeysTyped(
    ServerProfile server, {
    String pattern,
    String filterType,
    int limit,
    String host,
    int port,
    String pass,
    int db,
  });

  Future<List<String>> redisKeys(
    ServerProfile server, {
    String pattern,
    int limit,
    String host,
    int port,
    String pass,
    int db,
  });

  Future<RedisEntry> redisGet(
    ServerProfile server,
    String key, {
    String host,
    int port,
    String pass,
    int db,
  });

  // ── docker ────────────────────────────────────────────────────────────────
  Future<DockerStatus> dockerStatus(ServerProfile server);

  Future<List<DockerContainer>> dockerPs(ServerProfile server, {bool all});

  Future<String> dockerAction(ServerProfile server, String id, String action);

  Future<String> dockerLogs(ServerProfile server, String id, {int tail});

  Future<String> dockerTest(ServerProfile server);

  Future<(bool, String)> dockerRun(ServerProfile server, DockerRunSpec spec);

  // ── kafka ─────────────────────────────────────────────────────────────────
  Future<KafkaStatus> kafkaDetect(ServerProfile server);

  Future<String> kafkaTest(
    ServerProfile server, {
    required String binDir,
    required String suffix,
    required String bootstrap,
  });

  Future<List<KafkaTopic>> kafkaTopics(
    ServerProfile server, {
    required String binDir,
    required String suffix,
    required String bootstrap,
    bool includeInternal,
  });

  Future<List<KafkaConsumerGroup>> kafkaGroups(
    ServerProfile server, {
    required String binDir,
    required String suffix,
    required String bootstrap,
  });

  Future<KafkaCluster> kafkaCluster(
    ServerProfile server, {
    required String binDir,
    required String suffix,
    required String bootstrap,
  });

  // ── remote filesystem ─────────────────────────────────────────────────────
  Future<List<RemoteEntry>> listDir(ServerProfile server, String path);

  Future<String> resolveHome(ServerProfile server);

  Future<void> uploadFile(
    ServerProfile server,
    Uint8List bytes,
    String remotePath,
  );

  Future<Uint8List> downloadFile(ServerProfile server, String remotePath);

  Future<void> deleteRemote(
    ServerProfile server,
    String remotePath,
    bool isDir,
  );
}