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 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <https://www.gnu.org/licenses/why-not-lgpl.html>.
--- a/README.md
+++ b/README.md
@@ -1,39 +0,0 @@
 # tarc
 tarc is an experimental tool for tracking datasets distributed through
 BitTorrent. It scans your data and relates files to known BitTorrent
 metadata.
 ## Quick Start
 - Build the virtual environment and install tarc
  ```
  make
  ```
 - Use the newly built virtual environment
  ```
  source venv/bin/activate
  ```
 - Add qBittorrent client endpoint
  ```
  tarc client add -n qbit -u admin -e "https://qbit.example.org"
  ```
 - Scan the endpoint
  ```
  tarc scan -n qbit -u admin -p password
  ```
 ## Copyright and License
 Copyright (C) 2025 Kris Lamoureux
 This program is free software: you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
 Foundation, version 3 of the License.
 This program is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 PARTICULAR PURPOSE. See the GNU General Public License for more details.
 You should have received a copy of the GNU General Public License along with
 this program. If not, see <https://www.gnu.org/licenses/>.
--- a/tarc/main.py
+++ b/tarc/main.py
@@ -19,7 +19,7 @@ import qbittorrentapi
 from sqlalchemy import create_engine, inspect
 from sqlalchemy.orm import Session
-from .models import Base, SchemaVersion, Client, Torrent, TorrentFile
+from .models import Base, SchemaVersion, Client
 # SCHEMA format is YYYYMMDDX
 SCHEMA = 202503100
@@ -68,12 +68,16 @@ def add_client(engine, name, endpoint, last_seen):
        session.commit()
-def find_client(engine, name):
+def find_client(engine, endpoint):
    """
    Find existing client
    """
    with Session(engine) as session:
-        clients = session.query(Client).filter_by(name=name).all()
+        clients = (
            session.query(Client.id, Client.name, Client.uuid)
            .filter_by(endpoint=endpoint)
            .all()
        )
        return clients
@@ -85,7 +89,7 @@ def list_clients(engine):
        return session.query(Client).all()
-def auth_qbittorrent(endpoint, username, password):
+def authenticate_qbittorrent(endpoint, username, password):
    """
    Authenticate with the qBittorrent client
    """
@@ -93,120 +97,88 @@ def auth_qbittorrent(endpoint, username, password):
    try:
        qb.auth_log_in()
    except qbittorrentapi.LoginFailed as e:
-        raise ValueError(f'Login failed for endpoint "{endpoint}"') from e
+        raise ValueError(f'Login failed for endpoint "{endpoint}": {e}') from e
    except Exception as e:
        raise ValueError(f"An unexpected error occurred: {str(e)}") from e
    if not re.match(r"^v?\d+(\.\d+)*$", qb.app.version):
        raise ValueError(f'Invalid version "{qb.app.version}" found at "{endpoint}"')
    return qb
-def scan_torrents(qb_client, engine):
+def scan_torrents(qb_client, debug=False):
    """
    Scan torrents using the provided qBittorrent client.
    """
    torrents = qb_client.torrents_info()
-
+    print(f"[INFO]: There are {len(torrents)} torrents\n")
-    with Session(engine) as session:
+    for torrent in torrents[:2]:
        for torrent in torrents:
        files = qb_client.torrents_files(torrent.hash)
-            torrent_instance = (
+        trackers = qb_client.torrents_trackers(torrent.hash)
-                session.query(Torrent).filter_by(info_hash_v1=torrent.hash).first()
+        print(f"[name]: {torrent.name}")
-            )
+        print(f"[infohash_v1]: {torrent.hash}")
-            if not torrent_instance:
+        print(f"[content_path]: {torrent.content_path}")
-                completed_on = (
+        print(f"[magnet_uri]: {torrent.magnet_uri[:80]}")
-                    datetime.fromtimestamp(torrent.completion_on)
+        print(f"[completed_on]: {torrent.completed}\n")
-                    if torrent.completion_on
+        print(f"[trackers]: {len(trackers)}")
-                    else None
+        print(f"[file_count]: {len(files)}\n")
-                )
+        if debug:
-                torrent_instance = Torrent(
+            print(f"[DEBUG]: {repr(torrent)}")
-                    info_hash_v1=torrent.hash,
+            for elem in trackers:
-                    file_count=len(files),
+                print(f"[DEBUG]: Tracker {repr(elem)}")
-                    completed_on=completed_on,
+            print("\n", end="")
                )
                session.add(torrent_instance)
                session.commit()
                torrent_instance = (
                    session.query(Torrent).filter_by(info_hash_v1=torrent.hash).first()
                )
                if not torrent_instance:
                    print(f"[ERROR]: Can't find just added torrent {torrent.name}")
                    raise ValueError(f"Can't find {torrent.hash}")
            file_counter = 0
            for file in files:
                if (
                    not session.query(TorrentFile)
                    .filter_by(file_path=file.name)
                    .first()
                ):
                    torrent_file_instance = TorrentFile(
                        torrent_id=torrent_instance.id,
                        file_id=file.id,
                        client_id=1,
                        file_index=file.index,
                        file_path=file.name,
                        is_downloaded=file.progress == 1,
                        last_checked=datetime.now(timezone.utc),
                    )
                    session.add(torrent_file_instance)
                    file_counter += 1
            session.commit()
            if file_counter > 0:
                print(torrent.hash)
            elif torrent.progress == 1:
                print(f"[CHECKED]: {torrent.name}")
-def scan(args, engine):
+def handle_scan(args, engine):
    """
-    Scan command to authenticate with the qBittorrent client and scan torrents.
+    Handle the scan command to authenticate with the qBittorrent client and scan torrents.
    """
    if args.endpoint:
        qb_client = authenticate_qbittorrent(args.endpoint, args.username, args.password)
        clients = find_client(engine, args.endpoint)
        if args.confirm_add:
            if len(clients) == 0:
                if args.name:
        clients = find_client(engine, args.name)
        if len(clients) == 1:
            client_info = clients[0]
            qb_client = auth_qbittorrent(
                client_info.endpoint, args.username, args.password
            )
            scan_torrents(qb_client, engine)
        elif len(clients) == 0:
            raise ValueError(
                f'Client with name "{args.name}" not found. '
                "Please use the 'client add' command to add a new client."
            )
        else:
            raise ValueError(f"Multiple clients with the same name: {args.name}")
    elif args.directory:
        print("[INFO]: --directory is not implemented")
    else:
        raise ValueError("Must specify directory OR client name")
 def client_add(args, engine):
    """
    Add a new client to the database.
    """
    if args.name and args.endpoint and args.username:
                    now = datetime.now(timezone.utc)
                    add_client(engine, args.name, args.endpoint, now)
                    print(f"[INFO]: Added client {args.name} ({args.endpoint})")
                else:
                    raise ValueError("Must specify --name for a new client")
            elif len(clients) == 1:
                raise ValueError(f"{clients[0][1]} ({clients[0][2]}) already exists")
            else:
                raise ValueError(f"Multiple clients with the same endpoint: {args.endpoint}")
        elif len(clients) == 0:
            raise ValueError(
-            "Must specify --name, --endpoint, and --username to add a client"
+                f'Client using endpoint "{args.endpoint}" not found. '
                'Use --confirm-add to add a new endpoint'
            )
        elif len(clients) == 1:
            scan_torrents(qb_client, debug=args.debug)
        else:
            raise ValueError(f'Multiple clients ({len(clients)}) using "{args.endpoint}"')
    elif args.directory:
        print("[INFO]: --directory is not implemented")
    else:
        raise ValueError("Must specify directory OR client endpoint")
-def client_list(engine):
+def handle_client_add(args, engine):
    """
-    List all stored clients.
+    Handle the client addition command to add a new client to the database.
    """
    if args.name and args.endpoint:
        now = datetime.now(timezone.utc)
        add_client(engine, args.name, args.endpoint, now)
        print(f"[INFO]: Added client {args.name} ({args.endpoint})")
    else:
        raise ValueError("Must specify --name and --endpoint to add a client")
 def handle_client_list(args, engine):
    """
    Handle the client listing command to display all stored clients.
    """
    clients = list_clients(engine)
    for client in clients:
-        print(f"NAME: {client.name}")
+        print(f"{client.name} ({client.endpoint}) - Last seen: {client.last_seen}")
        print(f"ENDPOINT: {client.endpoint}")
        print(f"SEEN: {client.last_seen}")
        print()
 def main():
@@ -214,44 +186,34 @@ def main():
    Parses command-line arguments and executes the corresponding command.
    """
    parser = argparse.ArgumentParser(description="Manage BT archives", prog="tarc")
-    subparsers = parser.add_subparsers(
+    subparsers = parser.add_subparsers(dest="command", required=True, help="Available commands")
        dest="command", required=True, help="Available commands"
    )
    # scan command
-    scan_parser = subparsers.add_parser("scan", help="Scan command")
+    scan_parser = subparsers.add_parser("scan", help="Scan torrents")
    scan_parser.add_argument("-n", "--name", help="Name of client")
    scan_parser.add_argument("-d", "--directory", help="Directory to scan")
    scan_parser.add_argument("-u", "--username", required=True, help="Username")
    scan_parser.add_argument("--debug", action="store_true", help="Enable debug mode")
    scan_parser.add_argument(
-        "-p", "--password", required=True, help="Password authentication"
+            "--confirm-add", action="store_true", help="Confirm adding a new client"
    )
    # client command
    client_parser = subparsers.add_parser("client", help="Manage clients")
    client_subparsers = client_parser.add_subparsers(
        dest="client_command", required=True
        )
    scan_parser.add_argument("-n", "--name", help="Name of client")
    scan_parser.add_argument("-d", "--directory", help="Directory to scan")
    scan_parser.add_argument("-e", "--endpoint", help="Endpoint URL")
    scan_parser.add_argument("-u", "--username", help="Username")
    scan_parser.add_argument("-p", "--password", help="Password")
    scan_parser.add_argument("-s", "--storage", help="Path of sqlite3 database")
    # client add command
-    client_add_parser = client_subparsers.add_parser("add", help="Add a new client")
+    client_add_parser = subparsers.add_parser("client-add", help="Add a new client")
    client_add_parser.add_argument("-n", "--name", required=True, help="Name of client")
-    client_add_parser.add_argument("-u", "--username", required=True, help="Username")
+    client_add_parser.add_argument("-e", "--endpoint", required=True, help="Endpoint URL")
-    client_add_parser.add_argument(
+    client_add_parser.add_argument("-s", "--storage", help="Path of sqlite3 database")
        "-e", "--endpoint", required=True, help="Endpoint URL"
    )
    # client list command
-    client_subparsers.add_parser("list", help="List all clients")
+    client_list_parser = subparsers.add_parser("client-list", help="List all clients")
    client_list_parser.add_argument("-s", "--storage", help="Path of sqlite3 database")
    args = parser.parse_args()
-    # Check for valid subcommand for client
+    storage_path = args.storage or os.path.expanduser("~/.tarc.db")
    if args.command == "client" and args.client_command is None:
        parser.error("The 'client' command requires a subcommand (add or list).")
    storage_path = os.path.expanduser("~/.tarc.db")
    engine = create_engine(f"sqlite:///{storage_path}")
    if not list_tables(engine):
@@ -264,11 +226,11 @@ def main():
    try:
        if args.command == "scan":
-            scan(args, engine)
+            handle_scan(args, engine)
-        elif args.command == "client" and args.client_command == "add":
+        elif args.command == "client-add":
-            client_add(args, engine)
+            handle_client_add(args, engine)
-        elif args.command == "client" and args.client_command == "list":
+        elif args.command == "client-list":
-            client_list(engine)
+            handle_client_list(args, engine)
    except ValueError as e:
        print(f"[ERROR]: {e}")
        sys.exit(1)
--- a/tarc/models.py
+++ b/tarc/models.py
@@ -42,17 +42,7 @@ class Torrent(Base):  # pylint: disable=too-few-public-methods
    info_hash_v1 = Column(String, nullable=False, unique=True)
    info_hash_v2 = Column(String, unique=True)
    file_count = Column(Integer, nullable=False)
-    completed_on = Column(DateTime)
+    completed_on = Column(DateTime, nullable=False)
    def __repr__(self):
        """Return a string representation of the Torrent object."""
        return (
            f"Torrent(id={self.id}, "
            f"info_hash_v1='{self.info_hash_v1}', "
            f"info_hash_v2='{self.info_hash_v2}', "
            f"file_count={self.file_count}, "
            f"completed_on='{self.completed_on}')"
        )
 class TorrentClient(Base):  # pylint: disable=too-few-public-methods