#!/usr/bin/env python3
"""
Hermes CLI - Main entry point.

Usage:
    hermes                     # Interactive chat (default)
    hermes chat                # Interactive chat
    hermes gateway             # Run gateway in foreground
    hermes gateway start       # Start gateway as service
    hermes gateway stop        # Stop gateway service
    hermes gateway status      # Show gateway status
    hermes gateway install     # Install gateway service
    hermes gateway uninstall   # Uninstall gateway service
    hermes setup               # Interactive setup wizard
    hermes login               # Authenticate with Nous Portal (or other providers)
    hermes logout              # Clear stored authentication
    hermes status              # Show status of all components
    hermes cron                # Manage cron jobs
    hermes cron list           # List cron jobs
    hermes cron status         # Check if cron scheduler is running
    hermes doctor              # Check configuration and dependencies
    hermes version             # Show version
    hermes update              # Update to latest version
    hermes uninstall           # Uninstall Hermes Agent
"""

import argparse
import os
import sys
from pathlib import Path

# Add project root to path
PROJECT_ROOT = Path(__file__).parent.parent.resolve()
sys.path.insert(0, str(PROJECT_ROOT))

# Load .env file
from dotenv import load_dotenv
env_path = PROJECT_ROOT / '.env'
if env_path.exists():
    load_dotenv(dotenv_path=env_path)

import logging

from hermes_cli import __version__
from hermes_constants import OPENROUTER_BASE_URL

logger = logging.getLogger(__name__)


def _has_any_provider_configured() -> bool:
    """Check if at least one inference provider is usable."""
    from hermes_cli.config import get_env_path, get_hermes_home

    # Check env vars (may be set by .env or shell)
    if os.getenv("OPENROUTER_API_KEY") or os.getenv("OPENAI_API_KEY") or os.getenv("ANTHROPIC_API_KEY"):
        return True

    # Check .env file for keys
    env_file = get_env_path()
    if env_file.exists():
        try:
            for line in env_file.read_text().splitlines():
                line = line.strip()
                if line.startswith("#") or "=" not in line:
                    continue
                key, _, val = line.partition("=")
                val = val.strip().strip("'\"")
                if key.strip() in ("OPENROUTER_API_KEY", "OPENAI_API_KEY", "ANTHROPIC_API_KEY") and val:
                    return True
        except Exception:
            pass

    # Check for Nous Portal OAuth credentials
    auth_file = get_hermes_home() / "auth.json"
    if auth_file.exists():
        try:
            import json
            auth = json.loads(auth_file.read_text())
            active = auth.get("active_provider")
            if active:
                state = auth.get("providers", {}).get(active, {})
                if state.get("access_token") or state.get("refresh_token"):
                    return True
        except Exception:
            pass

    return False


def cmd_chat(args):
    """Run interactive chat CLI."""
    # First-run guard: check if any provider is configured before launching
    if not _has_any_provider_configured():
        print()
        print("It looks like Hermes isn't configured yet -- no API keys or providers found.")
        print()
        print("  Run:  hermes setup")
        print()
        try:
            reply = input("Run setup now? [Y/n] ").strip().lower()
        except (EOFError, KeyboardInterrupt):
            reply = "n"
        if reply in ("", "y", "yes"):
            cmd_setup(args)
            return
        print()
        print("You can run 'hermes setup' at any time to configure.")
        sys.exit(1)

    # Import and run the CLI
    from cli import main as cli_main
    
    # Build kwargs from args
    kwargs = {
        "model": args.model,
        "provider": getattr(args, "provider", None),
        "toolsets": args.toolsets,
        "verbose": args.verbose,
        "query": args.query,
    }
    # Filter out None values
    kwargs = {k: v for k, v in kwargs.items() if v is not None}
    
    cli_main(**kwargs)


def cmd_gateway(args):
    """Gateway management commands."""
    from hermes_cli.gateway import gateway_command
    gateway_command(args)


def cmd_setup(args):
    """Interactive setup wizard."""
    from hermes_cli.setup import run_setup_wizard
    run_setup_wizard(args)


def cmd_model(args):
    """Select default model — starts with provider selection, then model picker."""
    from hermes_cli.auth import (
        resolve_provider, get_provider_auth_state, PROVIDER_REGISTRY,
        _prompt_model_selection, _save_model_choice, _update_config_for_provider,
        resolve_nous_runtime_credentials, fetch_nous_models, AuthError, format_auth_error,
        _login_nous, ProviderConfig,
    )
    from hermes_cli.config import load_config, save_config, get_env_value, save_env_value

    config = load_config()
    current_model = config.get("model")
    if isinstance(current_model, dict):
        current_model = current_model.get("default", "")
    current_model = current_model or "(not set)"

    # Read effective provider the same way the CLI does at startup:
    # config.yaml model.provider > env var > auto-detect
    import os
    config_provider = None
    model_cfg = config.get("model")
    if isinstance(model_cfg, dict):
        config_provider = model_cfg.get("provider")

    effective_provider = (
        os.getenv("HERMES_INFERENCE_PROVIDER")
        or config_provider
        or "auto"
    )
    active = resolve_provider(effective_provider)

    # Detect custom endpoint
    if active == "openrouter" and get_env_value("OPENAI_BASE_URL"):
        active = "custom"

    provider_labels = {
        "openrouter": "OpenRouter",
        "nous": "Nous Portal",
        "custom": "Custom endpoint",
    }
    active_label = provider_labels.get(active, active)

    print()
    print(f"  Current model:    {current_model}")
    print(f"  Active provider:  {active_label}")
    print()

    # Step 1: Provider selection — put active provider first with marker
    providers = [
        ("openrouter", "OpenRouter (100+ models, pay-per-use)"),
        ("nous", "Nous Portal (Nous Research subscription)"),
        ("custom", "Custom endpoint (self-hosted / VLLM / etc.)"),
    ]

    # Reorder so the active provider is at the top
    active_key = active if active in ("openrouter", "nous") else "custom"
    ordered = []
    for key, label in providers:
        if key == active_key:
            ordered.insert(0, (key, f"{label}  ← currently active"))
        else:
            ordered.append((key, label))
    ordered.append(("cancel", "Cancel"))

    provider_idx = _prompt_provider_choice([label for _, label in ordered])
    if provider_idx is None or ordered[provider_idx][0] == "cancel":
        print("No change.")
        return

    selected_provider = ordered[provider_idx][0]

    # Step 2: Provider-specific setup + model selection
    if selected_provider == "openrouter":
        _model_flow_openrouter(config, current_model)
    elif selected_provider == "nous":
        _model_flow_nous(config, current_model)
    elif selected_provider == "custom":
        _model_flow_custom(config)


def _prompt_provider_choice(choices):
    """Show provider selection menu. Returns index or None."""
    try:
        from simple_term_menu import TerminalMenu
        menu_items = [f"  {c}" for c in choices]
        menu = TerminalMenu(
            menu_items, cursor_index=0,
            menu_cursor="-> ", menu_cursor_style=("fg_green", "bold"),
            menu_highlight_style=("fg_green",),
            cycle_cursor=True, clear_screen=False,
            title="Select provider:",
        )
        idx = menu.show()
        print()
        return idx
    except ImportError:
        pass

    # Fallback: numbered list
    print("Select provider:")
    for i, c in enumerate(choices, 1):
        print(f"  {i}. {c}")
    print()
    while True:
        try:
            val = input(f"Choice [1-{len(choices)}]: ").strip()
            if not val:
                return None
            idx = int(val) - 1
            if 0 <= idx < len(choices):
                return idx
            print(f"Please enter 1-{len(choices)}")
        except ValueError:
            print("Please enter a number")
        except (KeyboardInterrupt, EOFError):
            print()
            return None


def _model_flow_openrouter(config, current_model=""):
    """OpenRouter provider: ensure API key, then pick model."""
    from hermes_cli.auth import _prompt_model_selection, _save_model_choice, deactivate_provider
    from hermes_cli.config import get_env_value, save_env_value

    api_key = get_env_value("OPENROUTER_API_KEY")
    if not api_key:
        print("No OpenRouter API key configured.")
        print("Get one at: https://openrouter.ai/keys")
        print()
        try:
            key = input("OpenRouter API key (or Enter to cancel): ").strip()
        except (KeyboardInterrupt, EOFError):
            print()
            return
        if not key:
            print("Cancelled.")
            return
        save_env_value("OPENROUTER_API_KEY", key)
        print("API key saved.")
        print()

    from hermes_cli.models import model_ids
    openrouter_models = model_ids()

    selected = _prompt_model_selection(openrouter_models, current_model=current_model)
    if selected:
        # Clear any custom endpoint and set provider to openrouter
        if get_env_value("OPENAI_BASE_URL"):
            save_env_value("OPENAI_BASE_URL", "")
            save_env_value("OPENAI_API_KEY", "")
        _save_model_choice(selected)

        # Update config provider and deactivate any OAuth provider
        from hermes_cli.config import load_config, save_config
        cfg = load_config()
        model = cfg.get("model")
        if isinstance(model, dict):
            model["provider"] = "openrouter"
            model["base_url"] = OPENROUTER_BASE_URL
        save_config(cfg)
        deactivate_provider()
        print(f"Default model set to: {selected} (via OpenRouter)")
    else:
        print("No change.")


def _model_flow_nous(config, current_model=""):
    """Nous Portal provider: ensure logged in, then pick model."""
    from hermes_cli.auth import (
        get_provider_auth_state, _prompt_model_selection, _save_model_choice,
        _update_config_for_provider, resolve_nous_runtime_credentials,
        fetch_nous_models, AuthError, format_auth_error,
        _login_nous, PROVIDER_REGISTRY,
    )
    from hermes_cli.config import get_env_value, save_env_value
    import argparse

    state = get_provider_auth_state("nous")
    if not state or not state.get("access_token"):
        print("Not logged into Nous Portal. Starting login...")
        print()
        try:
            mock_args = argparse.Namespace(
                portal_url=None, inference_url=None, client_id=None,
                scope=None, no_browser=False, timeout=15.0,
                ca_bundle=None, insecure=False,
            )
            _login_nous(mock_args, PROVIDER_REGISTRY["nous"])
        except SystemExit:
            print("Login cancelled or failed.")
            return
        except Exception as exc:
            print(f"Login failed: {exc}")
            return
        # login_nous already handles model selection + config update
        return

    # Already logged in — fetch models and select
    print("Fetching models from Nous Portal...")
    try:
        creds = resolve_nous_runtime_credentials(min_key_ttl_seconds=5 * 60)
        model_ids = fetch_nous_models(
            inference_base_url=creds.get("base_url", ""),
            api_key=creds.get("api_key", ""),
        )
    except Exception as exc:
        msg = format_auth_error(exc) if isinstance(exc, AuthError) else str(exc)
        print(f"Could not fetch models: {msg}")
        return

    if not model_ids:
        print("No models returned by the inference API.")
        return

    selected = _prompt_model_selection(model_ids, current_model=current_model)
    if selected:
        _save_model_choice(selected)
        # Reactivate Nous as the provider and update config
        inference_url = creds.get("base_url", "")
        _update_config_for_provider("nous", inference_url)
        # Clear any custom endpoint that might conflict
        if get_env_value("OPENAI_BASE_URL"):
            save_env_value("OPENAI_BASE_URL", "")
            save_env_value("OPENAI_API_KEY", "")
        print(f"Default model set to: {selected} (via Nous Portal)")
    else:
        print("No change.")


def _model_flow_custom(config):
    """Custom endpoint: collect URL, API key, and model name."""
    from hermes_cli.auth import _save_model_choice, deactivate_provider
    from hermes_cli.config import get_env_value, save_env_value, load_config, save_config

    current_url = get_env_value("OPENAI_BASE_URL") or ""
    current_key = get_env_value("OPENAI_API_KEY") or ""

    print("Custom OpenAI-compatible endpoint configuration:")
    if current_url:
        print(f"  Current URL: {current_url}")
    if current_key:
        print(f"  Current key: {current_key[:8]}...")
    print()

    try:
        base_url = input(f"API base URL [{current_url or 'e.g. https://api.example.com/v1'}]: ").strip()
        api_key = input(f"API key [{current_key[:8] + '...' if current_key else 'optional'}]: ").strip()
        model_name = input("Model name (e.g. gpt-4, llama-3-70b): ").strip()
    except (KeyboardInterrupt, EOFError):
        print("\nCancelled.")
        return

    if not base_url and not current_url:
        print("No URL provided. Cancelled.")
        return

    # Validate URL format
    effective_url = base_url or current_url
    if not effective_url.startswith(("http://", "https://")):
        print(f"Invalid URL: {effective_url} (must start with http:// or https://)")
        return

    if base_url:
        save_env_value("OPENAI_BASE_URL", base_url)
    if api_key:
        save_env_value("OPENAI_API_KEY", api_key)

    if model_name:
        _save_model_choice(model_name)

        # Update config and deactivate any OAuth provider
        cfg = load_config()
        model = cfg.get("model")
        if isinstance(model, dict):
            model["provider"] = "auto"
            model["base_url"] = effective_url
        save_config(cfg)
        deactivate_provider()

        print(f"Default model set to: {model_name} (via {effective_url})")
    else:
        if base_url or api_key:
            deactivate_provider()
        print("Endpoint saved. Use `/model` in chat or `hermes model` to set a model.")


def cmd_login(args):
    """Authenticate Hermes CLI with a provider."""
    from hermes_cli.auth import login_command
    login_command(args)


def cmd_logout(args):
    """Clear provider authentication."""
    from hermes_cli.auth import logout_command
    logout_command(args)


def cmd_status(args):
    """Show status of all components."""
    from hermes_cli.status import show_status
    show_status(args)


def cmd_cron(args):
    """Cron job management."""
    from hermes_cli.cron import cron_command
    cron_command(args)


def cmd_doctor(args):
    """Check configuration and dependencies."""
    from hermes_cli.doctor import run_doctor
    run_doctor(args)


def cmd_config(args):
    """Configuration management."""
    from hermes_cli.config import config_command
    config_command(args)


def cmd_version(args):
    """Show version."""
    print(f"Hermes Agent v{__version__}")
    print(f"Project: {PROJECT_ROOT}")
    
    # Show Python version
    print(f"Python: {sys.version.split()[0]}")
    
    # Check for key dependencies
    try:
        import openai
        print(f"OpenAI SDK: {openai.__version__}")
    except ImportError:
        print("OpenAI SDK: Not installed")


def cmd_uninstall(args):
    """Uninstall Hermes Agent."""
    from hermes_cli.uninstall import run_uninstall
    run_uninstall(args)


def cmd_update(args):
    """Update Hermes Agent to the latest version."""
    import subprocess
    import shutil
    
    print("⚕ Updating Hermes Agent...")
    print()
    
    # Check if we're in a git repo
    git_dir = PROJECT_ROOT / '.git'
    if not git_dir.exists():
        print("✗ Not a git repository. Please reinstall:")
        print("  curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash")
        sys.exit(1)
    
    # Fetch and pull
    try:
        print("→ Fetching updates...")
        subprocess.run(["git", "fetch", "origin"], cwd=PROJECT_ROOT, check=True)
        
        # Get current branch
        result = subprocess.run(
            ["git", "rev-parse", "--abbrev-ref", "HEAD"],
            cwd=PROJECT_ROOT,
            capture_output=True,
            text=True,
            check=True
        )
        branch = result.stdout.strip()
        
        # Check if there are updates
        result = subprocess.run(
            ["git", "rev-list", f"HEAD..origin/{branch}", "--count"],
            cwd=PROJECT_ROOT,
            capture_output=True,
            text=True,
            check=True
        )
        commit_count = int(result.stdout.strip())
        
        if commit_count == 0:
            print("✓ Already up to date!")
            return
        
        print(f"→ Found {commit_count} new commit(s)")
        print("→ Pulling updates...")
        subprocess.run(["git", "pull", "origin", branch], cwd=PROJECT_ROOT, check=True)
        
        # Reinstall Python dependencies (prefer uv for speed, fall back to pip)
        print("→ Updating Python dependencies...")
        uv_bin = shutil.which("uv")
        if uv_bin:
            subprocess.run(
                [uv_bin, "pip", "install", "-e", ".", "--quiet"],
                cwd=PROJECT_ROOT, check=True,
                env={**os.environ, "VIRTUAL_ENV": str(PROJECT_ROOT / "venv")}
            )
        else:
            venv_pip = PROJECT_ROOT / "venv" / "bin" / "pip"
            if venv_pip.exists():
                subprocess.run([str(venv_pip), "install", "-e", ".", "--quiet"], cwd=PROJECT_ROOT, check=True)
            else:
                subprocess.run(["pip", "install", "-e", ".", "--quiet"], cwd=PROJECT_ROOT, check=True)
        
        # Check for Node.js deps
        if (PROJECT_ROOT / "package.json").exists():
            import shutil
            if shutil.which("npm"):
                print("→ Updating Node.js dependencies...")
                subprocess.run(["npm", "install", "--silent"], cwd=PROJECT_ROOT, check=False)
        
        print()
        print("✓ Code updated!")
        
        # Sync any new bundled skills (manifest-based -- won't overwrite or re-add deleted skills)
        try:
            from tools.skills_sync import sync_skills
            print()
            print("→ Checking for new bundled skills...")
            result = sync_skills(quiet=True)
            if result["copied"]:
                print(f"  + {len(result['copied'])} new skill(s): {', '.join(result['copied'])}")
            else:
                print("  ✓ Skills are up to date")
        except Exception as e:
            logger.debug("Skills sync during update failed: %s", e)
        
        # Check for config migrations
        print()
        print("→ Checking configuration for new options...")
        
        from hermes_cli.config import (
            get_missing_env_vars, get_missing_config_fields, 
            check_config_version, migrate_config
        )
        
        missing_env = get_missing_env_vars(required_only=True)
        missing_config = get_missing_config_fields()
        current_ver, latest_ver = check_config_version()
        
        needs_migration = missing_env or missing_config or current_ver < latest_ver
        
        if needs_migration:
            print()
            if missing_env:
                print(f"  ⚠️  {len(missing_env)} new required setting(s) need configuration")
            if missing_config:
                print(f"  ℹ️  {len(missing_config)} new config option(s) available")
            
            print()
            response = input("Would you like to configure them now? [Y/n]: ").strip().lower()
            
            if response in ('', 'y', 'yes'):
                print()
                results = migrate_config(interactive=True, quiet=False)
                
                if results["env_added"] or results["config_added"]:
                    print()
                    print("✓ Configuration updated!")
            else:
                print()
                print("Skipped. Run 'hermes config migrate' later to configure.")
        else:
            print("  ✓ Configuration is up to date")
        
        print()
        print("✓ Update complete!")
        print()
        print("Tip: You can now log in with Nous Portal for inference:")
        print("  hermes login              # Authenticate with Nous Portal")
        print()
        print("Note: If you have the gateway service running, restart it:")
        print("  hermes gateway restart")
        
    except subprocess.CalledProcessError as e:
        print(f"✗ Update failed: {e}")
        sys.exit(1)


def main():
    """Main entry point for hermes CLI."""
    parser = argparse.ArgumentParser(
        prog="hermes",
        description="Hermes Agent - AI assistant with tool-calling capabilities",
        formatter_class=argparse.RawDescriptionHelpFormatter,
        epilog="""
Examples:
    hermes                        Start interactive chat
    hermes chat -q "Hello"        Single query mode
    hermes setup                  Run setup wizard
    hermes login                  Authenticate with an inference provider
    hermes logout                 Clear stored authentication
    hermes model                  Select default model
    hermes config                 View configuration
    hermes config edit            Edit config in $EDITOR
    hermes config set model gpt-4 Set a config value
    hermes gateway                Run messaging gateway
    hermes gateway install        Install as system service
    hermes update                 Update to latest version

For more help on a command:
    hermes <command> --help
"""
    )
    
    parser.add_argument(
        "--version", "-V",
        action="store_true",
        help="Show version and exit"
    )
    
    subparsers = parser.add_subparsers(dest="command", help="Command to run")
    
    # =========================================================================
    # chat command
    # =========================================================================
    chat_parser = subparsers.add_parser(
        "chat",
        help="Interactive chat with the agent",
        description="Start an interactive chat session with Hermes Agent"
    )
    chat_parser.add_argument(
        "-q", "--query",
        help="Single query (non-interactive mode)"
    )
    chat_parser.add_argument(
        "-m", "--model",
        help="Model to use (e.g., anthropic/claude-sonnet-4)"
    )
    chat_parser.add_argument(
        "-t", "--toolsets",
        help="Comma-separated toolsets to enable"
    )
    chat_parser.add_argument(
        "--provider",
        choices=["auto", "openrouter", "nous"],
        default=None,
        help="Inference provider (default: auto)"
    )
    chat_parser.add_argument(
        "-v", "--verbose",
        action="store_true",
        help="Verbose output"
    )
    chat_parser.set_defaults(func=cmd_chat)

    # =========================================================================
    # model command
    # =========================================================================
    model_parser = subparsers.add_parser(
        "model",
        help="Select default model and provider",
        description="Interactively select your inference provider and default model"
    )
    model_parser.set_defaults(func=cmd_model)

    # =========================================================================
    # gateway command
    # =========================================================================
    gateway_parser = subparsers.add_parser(
        "gateway",
        help="Messaging gateway management",
        description="Manage the messaging gateway (Telegram, Discord, WhatsApp)"
    )
    gateway_subparsers = gateway_parser.add_subparsers(dest="gateway_command")
    
    # gateway run (default)
    gateway_run = gateway_subparsers.add_parser("run", help="Run gateway in foreground")
    gateway_run.add_argument("-v", "--verbose", action="store_true")
    
    # gateway start
    gateway_start = gateway_subparsers.add_parser("start", help="Start gateway service")
    
    # gateway stop
    gateway_stop = gateway_subparsers.add_parser("stop", help="Stop gateway service")
    
    # gateway restart
    gateway_restart = gateway_subparsers.add_parser("restart", help="Restart gateway service")
    
    # gateway status
    gateway_status = gateway_subparsers.add_parser("status", help="Show gateway status")
    gateway_status.add_argument("--deep", action="store_true", help="Deep status check")
    
    # gateway install
    gateway_install = gateway_subparsers.add_parser("install", help="Install gateway as service")
    gateway_install.add_argument("--force", action="store_true", help="Force reinstall")
    
    # gateway uninstall
    gateway_uninstall = gateway_subparsers.add_parser("uninstall", help="Uninstall gateway service")
    
    gateway_parser.set_defaults(func=cmd_gateway)
    
    # =========================================================================
    # setup command
    # =========================================================================
    setup_parser = subparsers.add_parser(
        "setup",
        help="Interactive setup wizard",
        description="Configure Hermes Agent with an interactive wizard"
    )
    setup_parser.add_argument(
        "--non-interactive",
        action="store_true",
        help="Non-interactive mode (use defaults/env vars)"
    )
    setup_parser.add_argument(
        "--reset",
        action="store_true",
        help="Reset configuration to defaults"
    )
    setup_parser.set_defaults(func=cmd_setup)

    # =========================================================================
    # login command
    # =========================================================================
    login_parser = subparsers.add_parser(
        "login",
        help="Authenticate with an inference provider",
        description="Run OAuth device authorization flow for Hermes CLI"
    )
    login_parser.add_argument(
        "--provider",
        choices=["nous"],
        default=None,
        help="Provider to authenticate with (default: interactive selection)"
    )
    login_parser.add_argument(
        "--portal-url",
        help="Portal base URL (default: production portal)"
    )
    login_parser.add_argument(
        "--inference-url",
        help="Inference API base URL (default: production inference API)"
    )
    login_parser.add_argument(
        "--client-id",
        default=None,
        help="OAuth client id to use (default: hermes-cli)"
    )
    login_parser.add_argument(
        "--scope",
        default=None,
        help="OAuth scope to request"
    )
    login_parser.add_argument(
        "--no-browser",
        action="store_true",
        help="Do not attempt to open the browser automatically"
    )
    login_parser.add_argument(
        "--timeout",
        type=float,
        default=15.0,
        help="HTTP request timeout in seconds (default: 15)"
    )
    login_parser.add_argument(
        "--ca-bundle",
        help="Path to CA bundle PEM file for TLS verification"
    )
    login_parser.add_argument(
        "--insecure",
        action="store_true",
        help="Disable TLS verification (testing only)"
    )
    login_parser.set_defaults(func=cmd_login)

    # =========================================================================
    # logout command
    # =========================================================================
    logout_parser = subparsers.add_parser(
        "logout",
        help="Clear authentication for an inference provider",
        description="Remove stored credentials and reset provider config"
    )
    logout_parser.add_argument(
        "--provider",
        choices=["nous"],
        default=None,
        help="Provider to log out from (default: active provider)"
    )
    logout_parser.set_defaults(func=cmd_logout)

    # =========================================================================
    # status command
    # =========================================================================
    status_parser = subparsers.add_parser(
        "status",
        help="Show status of all components",
        description="Display status of Hermes Agent components"
    )
    status_parser.add_argument(
        "--all",
        action="store_true",
        help="Show all details (redacted for sharing)"
    )
    status_parser.add_argument(
        "--deep",
        action="store_true",
        help="Run deep checks (may take longer)"
    )
    status_parser.set_defaults(func=cmd_status)
    
    # =========================================================================
    # cron command
    # =========================================================================
    cron_parser = subparsers.add_parser(
        "cron",
        help="Cron job management",
        description="Manage scheduled tasks"
    )
    cron_subparsers = cron_parser.add_subparsers(dest="cron_command")
    
    # cron list
    cron_list = cron_subparsers.add_parser("list", help="List scheduled jobs")
    cron_list.add_argument("--all", action="store_true", help="Include disabled jobs")
    
    # cron status
    cron_subparsers.add_parser("status", help="Check if cron scheduler is running")
    
    # cron tick (mostly for debugging)
    cron_subparsers.add_parser("tick", help="Run due jobs once and exit")
    
    cron_parser.set_defaults(func=cmd_cron)
    
    # =========================================================================
    # doctor command
    # =========================================================================
    doctor_parser = subparsers.add_parser(
        "doctor",
        help="Check configuration and dependencies",
        description="Diagnose issues with Hermes Agent setup"
    )
    doctor_parser.add_argument(
        "--fix",
        action="store_true",
        help="Attempt to fix issues automatically"
    )
    doctor_parser.set_defaults(func=cmd_doctor)
    
    # =========================================================================
    # config command
    # =========================================================================
    config_parser = subparsers.add_parser(
        "config",
        help="View and edit configuration",
        description="Manage Hermes Agent configuration"
    )
    config_subparsers = config_parser.add_subparsers(dest="config_command")
    
    # config show (default)
    config_show = config_subparsers.add_parser("show", help="Show current configuration")
    
    # config edit
    config_edit = config_subparsers.add_parser("edit", help="Open config file in editor")
    
    # config set
    config_set = config_subparsers.add_parser("set", help="Set a configuration value")
    config_set.add_argument("key", nargs="?", help="Configuration key (e.g., model, terminal.backend)")
    config_set.add_argument("value", nargs="?", help="Value to set")
    
    # config path
    config_path = config_subparsers.add_parser("path", help="Print config file path")
    
    # config env-path
    config_env = config_subparsers.add_parser("env-path", help="Print .env file path")
    
    # config check
    config_check = config_subparsers.add_parser("check", help="Check for missing/outdated config")
    
    # config migrate
    config_migrate = config_subparsers.add_parser("migrate", help="Update config with new options")
    
    config_parser.set_defaults(func=cmd_config)
    
    # =========================================================================
    # pairing command
    # =========================================================================
    pairing_parser = subparsers.add_parser(
        "pairing",
        help="Manage DM pairing codes for user authorization",
        description="Approve or revoke user access via pairing codes"
    )
    pairing_sub = pairing_parser.add_subparsers(dest="pairing_action")

    pairing_list_parser = pairing_sub.add_parser("list", help="Show pending + approved users")

    pairing_approve_parser = pairing_sub.add_parser("approve", help="Approve a pairing code")
    pairing_approve_parser.add_argument("platform", help="Platform name (telegram, discord, slack, whatsapp)")
    pairing_approve_parser.add_argument("code", help="Pairing code to approve")

    pairing_revoke_parser = pairing_sub.add_parser("revoke", help="Revoke user access")
    pairing_revoke_parser.add_argument("platform", help="Platform name")
    pairing_revoke_parser.add_argument("user_id", help="User ID to revoke")

    pairing_clear_parser = pairing_sub.add_parser("clear-pending", help="Clear all pending codes")

    def cmd_pairing(args):
        from hermes_cli.pairing import pairing_command
        pairing_command(args)

    pairing_parser.set_defaults(func=cmd_pairing)

    # =========================================================================
    # skills command
    # =========================================================================
    skills_parser = subparsers.add_parser(
        "skills",
        help="Skills Hub — search, install, and manage skills from online registries",
        description="Search, install, inspect, audit, and manage skills from GitHub, ClawHub, and other registries."
    )
    skills_subparsers = skills_parser.add_subparsers(dest="skills_action")

    skills_search = skills_subparsers.add_parser("search", help="Search skill registries")
    skills_search.add_argument("query", help="Search query")
    skills_search.add_argument("--source", default="all", choices=["all", "github", "clawhub", "lobehub"])
    skills_search.add_argument("--limit", type=int, default=10, help="Max results")

    skills_install = skills_subparsers.add_parser("install", help="Install a skill")
    skills_install.add_argument("identifier", help="Skill identifier (e.g. openai/skills/skill-creator)")
    skills_install.add_argument("--category", default="", help="Category folder to install into")
    skills_install.add_argument("--force", action="store_true", help="Install despite caution verdict")

    skills_inspect = skills_subparsers.add_parser("inspect", help="Preview a skill without installing")
    skills_inspect.add_argument("identifier", help="Skill identifier")

    skills_list = skills_subparsers.add_parser("list", help="List installed skills")
    skills_list.add_argument("--source", default="all", choices=["all", "hub", "builtin"])

    skills_audit = skills_subparsers.add_parser("audit", help="Re-scan installed hub skills")
    skills_audit.add_argument("name", nargs="?", help="Specific skill to audit (default: all)")

    skills_uninstall = skills_subparsers.add_parser("uninstall", help="Remove a hub-installed skill")
    skills_uninstall.add_argument("name", help="Skill name to remove")

    skills_publish = skills_subparsers.add_parser("publish", help="Publish a skill to a registry")
    skills_publish.add_argument("skill_path", help="Path to skill directory")
    skills_publish.add_argument("--to", default="github", choices=["github", "clawhub"], help="Target registry")
    skills_publish.add_argument("--repo", default="", help="Target GitHub repo (e.g. openai/skills)")

    skills_snapshot = skills_subparsers.add_parser("snapshot", help="Export/import skill configurations")
    snapshot_subparsers = skills_snapshot.add_subparsers(dest="snapshot_action")
    snap_export = snapshot_subparsers.add_parser("export", help="Export installed skills to a file")
    snap_export.add_argument("output", help="Output JSON file path")
    snap_import = snapshot_subparsers.add_parser("import", help="Import and install skills from a file")
    snap_import.add_argument("input", help="Input JSON file path")
    snap_import.add_argument("--force", action="store_true", help="Force install despite caution verdict")

    skills_tap = skills_subparsers.add_parser("tap", help="Manage skill sources")
    tap_subparsers = skills_tap.add_subparsers(dest="tap_action")
    tap_subparsers.add_parser("list", help="List configured taps")
    tap_add = tap_subparsers.add_parser("add", help="Add a GitHub repo as skill source")
    tap_add.add_argument("repo", help="GitHub repo (e.g. owner/repo)")
    tap_rm = tap_subparsers.add_parser("remove", help="Remove a tap")
    tap_rm.add_argument("name", help="Tap name to remove")

    def cmd_skills(args):
        from hermes_cli.skills_hub import skills_command
        skills_command(args)

    skills_parser.set_defaults(func=cmd_skills)

    # =========================================================================
    # tools command
    # =========================================================================
    tools_parser = subparsers.add_parser(
        "tools",
        help="Configure which tools are enabled per platform",
        description="Interactive tool configuration — enable/disable tools for CLI, Telegram, Discord, etc."
    )

    def cmd_tools(args):
        from hermes_cli.tools_config import tools_command
        tools_command(args)

    tools_parser.set_defaults(func=cmd_tools)

    # =========================================================================
    # sessions command
    # =========================================================================
    sessions_parser = subparsers.add_parser(
        "sessions",
        help="Manage session history (list, export, prune, delete)",
        description="View and manage the SQLite session store"
    )
    sessions_subparsers = sessions_parser.add_subparsers(dest="sessions_action")

    sessions_list = sessions_subparsers.add_parser("list", help="List recent sessions")
    sessions_list.add_argument("--source", help="Filter by source (cli, telegram, discord, etc.)")
    sessions_list.add_argument("--limit", type=int, default=20, help="Max sessions to show")

    sessions_export = sessions_subparsers.add_parser("export", help="Export sessions to a JSONL file")
    sessions_export.add_argument("output", help="Output JSONL file path")
    sessions_export.add_argument("--source", help="Filter by source")
    sessions_export.add_argument("--session-id", help="Export a specific session")

    sessions_delete = sessions_subparsers.add_parser("delete", help="Delete a specific session")
    sessions_delete.add_argument("session_id", help="Session ID to delete")
    sessions_delete.add_argument("--yes", "-y", action="store_true", help="Skip confirmation")

    sessions_prune = sessions_subparsers.add_parser("prune", help="Delete old sessions")
    sessions_prune.add_argument("--older-than", type=int, default=90, help="Delete sessions older than N days (default: 90)")
    sessions_prune.add_argument("--source", help="Only prune sessions from this source")
    sessions_prune.add_argument("--yes", "-y", action="store_true", help="Skip confirmation")

    sessions_stats = sessions_subparsers.add_parser("stats", help="Show session store statistics")

    def cmd_sessions(args):
        import json as _json
        try:
            from hermes_state import SessionDB
            db = SessionDB()
        except Exception as e:
            print(f"Error: Could not open session database: {e}")
            return

        action = args.sessions_action

        if action == "list":
            sessions = db.search_sessions(source=args.source, limit=args.limit)
            if not sessions:
                print("No sessions found.")
                return
            print(f"{'ID':<30} {'Source':<12} {'Model':<30} {'Messages':>8} {'Started'}")
            print("─" * 100)
            from datetime import datetime
            for s in sessions:
                started = datetime.fromtimestamp(s["started_at"]).strftime("%Y-%m-%d %H:%M") if s["started_at"] else "?"
                model = (s.get("model") or "?")[:28]
                ended = " (ended)" if s.get("ended_at") else ""
                print(f"{s['id']:<30} {s['source']:<12} {model:<30} {s['message_count']:>8} {started}{ended}")

        elif action == "export":
            if args.session_id:
                data = db.export_session(args.session_id)
                if not data:
                    print(f"Session '{args.session_id}' not found.")
                    return
                with open(args.output, "w") as f:
                    f.write(_json.dumps(data, ensure_ascii=False) + "\n")
                print(f"Exported 1 session to {args.output}")
            else:
                sessions = db.export_all(source=args.source)
                with open(args.output, "w") as f:
                    for s in sessions:
                        f.write(_json.dumps(s, ensure_ascii=False) + "\n")
                print(f"Exported {len(sessions)} sessions to {args.output}")

        elif action == "delete":
            if not args.yes:
                confirm = input(f"Delete session '{args.session_id}' and all its messages? [y/N] ")
                if confirm.lower() not in ("y", "yes"):
                    print("Cancelled.")
                    return
            if db.delete_session(args.session_id):
                print(f"Deleted session '{args.session_id}'.")
            else:
                print(f"Session '{args.session_id}' not found.")

        elif action == "prune":
            days = args.older_than
            source_msg = f" from '{args.source}'" if args.source else ""
            if not args.yes:
                confirm = input(f"Delete all ended sessions older than {days} days{source_msg}? [y/N] ")
                if confirm.lower() not in ("y", "yes"):
                    print("Cancelled.")
                    return
            count = db.prune_sessions(older_than_days=days, source=args.source)
            print(f"Pruned {count} session(s).")

        elif action == "stats":
            total = db.session_count()
            msgs = db.message_count()
            print(f"Total sessions: {total}")
            print(f"Total messages: {msgs}")
            for src in ["cli", "telegram", "discord", "whatsapp", "slack"]:
                c = db.session_count(source=src)
                if c > 0:
                    print(f"  {src}: {c} sessions")
            import os
            db_path = db.db_path
            if db_path.exists():
                size_mb = os.path.getsize(db_path) / (1024 * 1024)
                print(f"Database size: {size_mb:.1f} MB")

        else:
            sessions_parser.print_help()

        db.close()

    sessions_parser.set_defaults(func=cmd_sessions)

    # =========================================================================
    # version command
    # =========================================================================
    version_parser = subparsers.add_parser(
        "version",
        help="Show version information"
    )
    version_parser.set_defaults(func=cmd_version)
    
    # =========================================================================
    # update command
    # =========================================================================
    update_parser = subparsers.add_parser(
        "update",
        help="Update Hermes Agent to the latest version",
        description="Pull the latest changes from git and reinstall dependencies"
    )
    update_parser.set_defaults(func=cmd_update)
    
    # =========================================================================
    # uninstall command
    # =========================================================================
    uninstall_parser = subparsers.add_parser(
        "uninstall",
        help="Uninstall Hermes Agent",
        description="Remove Hermes Agent from your system. Can keep configs/data for reinstall."
    )
    uninstall_parser.add_argument(
        "--full",
        action="store_true",
        help="Full uninstall - remove everything including configs and data"
    )
    uninstall_parser.add_argument(
        "--yes", "-y",
        action="store_true",
        help="Skip confirmation prompts"
    )
    uninstall_parser.set_defaults(func=cmd_uninstall)
    
    # =========================================================================
    # Parse and execute
    # =========================================================================
    args = parser.parse_args()
    
    # Handle --version flag
    if args.version:
        cmd_version(args)
        return
    
    # Default to chat if no command specified
    if args.command is None:
        args.query = None
        args.model = None
        args.provider = None
        args.toolsets = None
        args.verbose = False
        cmd_chat(args)
        return
    
    # Execute the command
    if hasattr(args, 'func'):
        args.func(args)
    else:
        parser.print_help()


if __name__ == "__main__":
    main()