rigdoctor/src/rigdoctor/cli.py

"""RigDoctor command-line interface."""

from __future__ import annotations

import argparse
import json
import os
import signal
import sys
import time
from pathlib import Path

from . import __version__, config
from .config import load_config
from .core import reccontrol
from .core.sampler import Sampler
from .core.sources import available_sources
from .render import format_headline, render_snapshot, render_summary


def _sampler() -> Sampler:
    return Sampler(available_sources())


def cmd_sources(args) -> int:
    srcs = available_sources()
    if not srcs:
        print("No sensor sources detected.")
        return 1
    print("Detected sources:")
    for s in srcs:
        print(f"  - {s.name} ({type(s).__name__})")
    return 0


def cmd_snapshot(args) -> int:
    sample = _sampler().sample()
    if args.json:
        payload = {"ts": sample.ts, "readings": sample.to_rows()}
        print(json.dumps(payload, indent=2, ensure_ascii=False))
    else:
        print(render_snapshot(sample))
    return 0


def cmd_monitor(args) -> int:
    from .tui import run

    interval = args.interval or load_config()["interval"]
    return run(interval, plain=getattr(args, "plain", False))


def cmd_gui(args) -> int:
    try:
        from .gui.app import main as gui_main
    except ImportError as exc:
        print("The GUI needs PySide6, which isn't installed.")
        print("  Install it with:  pip install 'rigdoctor[gui]'")
        print("  or on Ubuntu:     sudo apt install python3-pyside6")
        print(f"  ({exc})")
        return 2
    return gui_main([sys.argv[0]])


# --- M3 crash-capture logger ---------------------------------------------------

def cmd_record_run(args) -> int:
    cfg = load_config()
    interval = args.interval or cfg["interval"]
    log_path = Path(args.out) if args.out else config.LOG_FILE
    config.STATE_DIR.mkdir(parents=True, exist_ok=True)
    config.PID_FILE.write_text(str(os.getpid()))

    from .core.recorder import Recorder

    recorder = Recorder(
        interval=interval,
        log_path=log_path,
        max_bytes=cfg["log_max_bytes"],
        backups=cfg["log_backups"],
        status_path=config.STATUS_FILE,
        game=getattr(args, "game", None),
    )

    def _handle(_sig, _frame):
        recorder.stop()

    signal.signal(signal.SIGTERM, _handle)
    signal.signal(signal.SIGINT, _handle)

    print(f"Recording to {log_path} every {interval:g}s — stop with Ctrl-C or `rigdoctor record stop`.")
    try:
        recorder.run()
    finally:
        try:
            config.PID_FILE.unlink()
        except OSError:
            pass
    print(f"Stopped after {recorder.samples} samples.")
    return 0


def cmd_record_start(args) -> int:
    if reccontrol.running_pid():
        print(f"Recorder already running (pid {reccontrol.running_pid()}).")
        return 0
    pid = reccontrol.start_background(args.interval, args.out)
    time.sleep(1.0)  # let it come up
    if pid and reccontrol.pid_alive(pid):
        print(f"Recording started in the background (pid {pid}).")
        print(f"  log:    {args.out or config.LOG_FILE}")
        print("  status: rigdoctor record status   ·   stop: rigdoctor record stop")
        return 0
    print(f"Recorder failed to start; see {config.SPAWN_LOG}")
    return 1


def cmd_record_stop(args) -> int:
    pid = reccontrol.running_pid()
    if not pid:
        print("Recorder is not running.")
        return 0
    if not reccontrol.stop_background():
        print(f"Could not stop recorder (pid {pid}).")
        return 1
    for _ in range(50):
        if not reccontrol.pid_alive(pid):
            break
        time.sleep(0.1)
    print(f"Recorder stopped (pid {pid}).")
    return 0


def cmd_record_status(args) -> int:
    pid = reccontrol.running_pid()
    status = reccontrol.read_status()
    print(f"● recording (pid {pid})" if pid else "○ not recording")
    if status:
        print(f"  log:     {status.get('log')}")
        print(f"  samples: {status.get('samples')}")
        if status.get("started"):
            print(f"  started: {time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(status['started']))}")
        if status.get("updated"):
            print(f"  updated: {time.strftime('%H:%M:%S', time.localtime(status['updated']))}")
        if status.get("gpu_lost"):
            print("  ⚠ a GPU-lost event was recorded this session")
        if status.get("latest"):
            print(f"  latest:  {format_headline(status['latest'])}")
    return 0


def cmd_record_report(args) -> int:
    from .core.crashlog import summarize

    log_path = Path(args.log) if args.log else config.LOG_FILE
    summary = summarize(log_path, last_n=args.last)
    print(render_summary(summary, log_path=log_path))
    return 0


def cmd_install(args) -> int:
    from .core import installer, sysenv

    print(f"Distro:          {sysenv.distro_name()}")
    pm = sysenv.package_manager()
    print(f"Package manager: {pm or 'none (only apt is supported)'}")
    print(f"GPU:             {', '.join(sysenv.gpu_vendors()) or 'unknown'}\n")

    status = installer.component_status()
    print("Optional components:")
    for component, present in status:
        mark = "✓" if present else "✗"
        print(f"  [{mark}] {component.name:<22} — {component.enables}")
        if not present:
            print(f"        apt: {' '.join(component.apt)}")

    missing = [c for c, present in status if not present]
    if not missing:
        print("\nAll optional components are installed. ✔")
        return 0

    packages = installer.missing_packages(missing)
    print(f"\nMissing packages: {' '.join(packages)}")
    if args.check:
        return 0
    if pm != "apt":
        print(f"Automatic install needs apt. Install manually:\n  sudo apt install {' '.join(packages)}")
        return 1
    if not args.yes:
        try:
            reply = input(f"\nInstall {len(packages)} package(s) now? [y/N] ").strip().lower()
        except EOFError:
            reply = "n"
        if reply not in ("y", "yes"):
            print("Aborted.")
            return 1

    print("Installing (you may be prompted for your password)…")
    rc, out = installer.install_packages(packages)
    print(out[-2000:])
    if rc == 0:
        still = [c.name for c, present in installer.component_status() if not present]
        print("\nStill missing: " + (", ".join(still) if still else "none ✔"))
    else:
        print(f"\nInstall failed (exit {rc}).")
    return rc


def cmd_login(args) -> int:
    from getpass import getpass

    from .core import updates

    token = args.token
    if not token:
        print(f"Create a token (scope read:repository) at: {updates.TOKEN_PAGE}")
        try:
            token = getpass("Paste token: ").strip()
        except (EOFError, KeyboardInterrupt):
            token = ""
    if not token:
        print("No token provided.")
        return 1
    config.save_token(token)
    state, tag, _notes = updates.update_state()
    if state == updates.AUTH:
        print("Token saved, but the server rejected it (check scope/permissions).")
        return 1
    if state in (updates.UP_TO_DATE, updates.AVAILABLE):
        print(f"Token saved and verified. Latest release: {tag}.")
        return 0
    print("Token saved (couldn't reach the server to verify right now).")
    return 0


def cmd_logout(args) -> int:
    config.clear_token()
    print("Update token removed.")
    return 0


def cmd_update(args) -> int:
    from .core import updates

    state, tag, notes = updates.update_state()
    if state == updates.NO_TOKEN:
        print("No update token. Run `rigdoctor login` after creating one at:")
        print(f"  {updates.TOKEN_PAGE}")
        return 1
    if state == updates.AUTH:
        print("The update server rejected your token (check scope/permissions).")
        return 1
    if state == updates.NETWORK:
        print("Couldn't reach the update server.")
        return 1
    if state == updates.UP_TO_DATE:
        print(f"Up to date (v{__version__}).")
        return 0
    # AVAILABLE
    print(f"Update available: {tag}  (current v{__version__}).")
    if notes:
        print("\nWhat's new:\n" + "\n".join("  " + ln for ln in notes.splitlines()) + "\n")
    if args.check:
        return 0
    print(f"Installing {tag}…")
    rc, out = updates.apply_update(tag)
    print(out[-2000:])
    if rc == 0:
        print(f"\nUpdated to {tag}. Restart RigDoctor to use the new version.")
        return 0
    print(f"\nUpdate failed (exit {rc}).")
    return rc


def cmd_uninstall(args) -> int:
    from .core import uninstall as uninstaller

    scope = "everything (app + settings, token, and logs)" if args.purge else "the app (settings/logs kept)"
    if not args.yes:
        try:
            reply = input(f"Uninstall RigDoctor — remove {scope}? [y/N] ").strip().lower()
        except EOFError:
            reply = "n"
        if reply not in ("y", "yes"):
            print("Aborted.")
            return 1
    uninstaller.uninstall(purge=args.purge)
    print("Uninstalling… RigDoctor will be removed momentarily.")
    return 0


def cmd_collect_priv(args) -> int:
    """Internal: emit root-only data (SMART + dmidecode) as JSON, run via pkexec at launch."""
    from dataclasses import asdict

    from .core.health import check_smart
    from .core.inventory import _dmidecode

    data = {"smart": [asdict(f) for f in check_smart()], "dmidecode": _dmidecode()}
    print(json.dumps(data))
    return 0


def cmd_inventory(args) -> int:
    from .core import inventory

    sections = inventory.collect()
    if args.json:
        text = inventory.render_json(sections)
    elif args.markdown:
        text = inventory.render_markdown(sections)
    else:
        text = inventory.render_text(sections)
    if args.output:
        Path(args.output).write_text(text)
        print(f"Wrote {args.output}")
    else:
        print(text)
    return 0


def cmd_report(args) -> int:
    from dataclasses import asdict

    from .core.health import run_health_checks
    from .render import render_health

    findings = run_health_checks()
    if args.json:
        print(json.dumps([asdict(f) for f in findings], indent=2, ensure_ascii=False))
    else:
        print(render_health(findings))
    return 0


def _resolve_game(args) -> str | None:
    """Game name from --game, or looked up from --appid via the Steam scan."""
    if getattr(args, "game", None):
        return args.game
    if getattr(args, "appid", None):
        from .core import steam

        for g in steam.scan_games(steam.selected_library_paths()):
            if g.appid == str(args.appid):
                return g.name
        return None
    return None


def cmd_diagnose(args) -> int:
    from .core import diagnostic, reccontrol, steam

    sub = args.diagnose_cmd or "status"

    if sub == "start":
        if reccontrol.running_pid():
            print("A capture is already running — finish it with: rigdoctor diagnose finish")
            return 1
        game = _resolve_game(args)
        if game is None and (args.game or args.appid):
            print("Couldn't match that game in your selected Steam libraries.")
            return 1
        if game is None:
            games = steam.cached_games() or steam.scan_games(steam.selected_library_paths())
            if games:
                print("Pick a game to focus on, then re-run with --game:")
                for g in games:
                    print(f"  --game {g.name!r}")
            else:
                print("No games detected. Select a library: rigdoctor games libraries --all")
            return 1
        pid = diagnostic.start(game=game, interval=args.interval)
        time.sleep(1.0)
        if pid and reccontrol.pid_alive(pid):
            print(f"Diagnostic capture started for {game!r} (pid {pid}).")
            print("  Play your game. When you're done (or after a crash + reboot):")
            print("    rigdoctor diagnose finish")
            return 0
        print(f"Capture failed to start; see {config.SPAWN_LOG}")
        return 1

    if sub == "status":
        status = diagnostic.active()
        if not status:
            print("No diagnostic capture is running.")
            return 0
        game = status.get("game") or "—"
        print(f"Capturing for {game!r}: {status.get('samples', 0)} samples"
              + (" · GPU-lost seen" if status.get("gpu_lost") else ""))
        return 0

    # finish
    if not reccontrol.running_pid() and not config.DIAG_LOG.exists():
        print("No diagnostic to analyze. Start one with: rigdoctor diagnose start --game <name>")
        return 1
    print("Stopping capture and analyzing…\n")
    result = diagnostic.finish(last_n=args.last)
    from .render import render_health, render_summary

    if result.game:
        print(f"Diagnostic — {result.game}\n")
    print(render_summary(result.summary, log_path=config.DIAG_LOG))
    print("\n" + render_health(result.findings, title="Findings"))
    return 0


def cmd_wrap(args) -> int:
    from .core import wrap

    return wrap.run(args.command)


def cmd_watch(args) -> int:
    from .core import watcher

    interval = args.interval or load_config().get("interval", 1.0)
    print("Watching for a running Steam game (Ctrl-C to stop)…")
    return watcher.watch(interval=max(2.0, interval))


def cmd_service(args) -> int:
    from .core import service

    sub = args.service_cmd or "status"
    if sub == "mode":
        ok, msg = service.apply_mode(args.mode)
        print(f"Trigger mode set to '{args.mode}'.")
        if not ok and msg:
            print(f"  note: {msg}")
        return 0 if ok or not service.available() else 1

    info = service.status()
    print(f"Trigger mode:    {info['mode']}")
    print(f"systemd --user:  {'available' if info['available'] else 'not available'}")
    if info["available"]:
        print(f"  recorder service: {'active' if info.get('recorder_active') else 'inactive'}")
        print(f"  watcher service:  {'active' if info.get('watch_active') else 'inactive'}")
    return 0


def cmd_ai(args) -> int:
    """AI assistant (M14) — opt-in; only contacts a provider on `test`/`explain`."""
    from .core import ai

    sub = args.ai_cmd or "status"
    if sub == "status":
        print(f"Provider: {ai.provider() or 'not configured'}")
        if ai.provider():
            print(f"  {ai.provider_label()}")
            print(f"  ready:    {'yes' if ai.is_configured() else 'no'}")
        else:
            print("  Configure it in the GUI: Settings → AI assistant.")
        return 0

    if not ai.is_configured():
        print("AI is not configured. Set it up in the GUI (Settings → AI assistant).")
        return 1

    if sub == "test":
        ok, msg = ai.explain("Connectivity test — reply exactly: RigDoctor AI is working.")
        print(msg)
        return 0 if ok else 1

    # explain: gather the current health findings and ask the provider to explain them.
    from .core import health

    findings = health.run_health_checks()
    text = ai.format_findings(findings)
    print(f"Asking {ai.provider_label()} to explain the current health findings…\n")
    ok, msg = ai.explain(text)
    print(msg)
    return 0 if ok else 1


def cmd_bundle(args) -> int:
    """Zip the latest stored diagnostic into a report bundle (M15) — needs logging enabled."""
    from .core import diagstore

    if not diagstore.enabled():
        print("Logging is off. Enable it (Settings → Logging, or set logging_enabled) so "
              "diagnostics are stored and can be reported.")
        return 1
    directory = diagstore.latest_dir()
    if directory is None:
        print("No stored diagnostics yet — run a diagnostic first.")
        return 1
    out = diagstore.make_report(directory)
    print(f"Report written: {out}")
    return 0


def cmd_gameenv(args) -> int:
    from dataclasses import asdict

    from .core.gameenv import run_gameenv_checks
    from .render import render_health

    findings = run_gameenv_checks()
    if args.json:
        print(json.dumps([asdict(f) for f in findings], indent=2, ensure_ascii=False))
    else:
        print(render_health(findings, title="Gaming environment"))
    return 0


def cmd_games(args) -> int:
    from dataclasses import asdict

    from .core import launchers, steam

    selected = steam.selected_library_paths()
    result = steam.rescan() if selected else None
    steam_games = result.games if result else []
    extra = launchers.scan()  # non-Steam (Lutris/Heroic)
    all_games = list(steam_games) + list(extra)

    if args.json:
        print(json.dumps({
            "scanned_at": result.scanned_at if result else None,
            "new_appids": result.new_appids if result else [],
            "games": [asdict(g) for g in all_games],
        }, indent=2, ensure_ascii=False))
        return 0

    if not all_games:
        if not selected:
            print("No Steam libraries selected and no non-Steam games found.")
            print("  Pick a Steam library: rigdoctor games libraries --enable <path>  (or --all)")
            return 1
        print("No games found.")
        return 0

    new = set(result.new_appids) if result else set()
    print(f"{len(all_games)} game(s):\n")
    for g in all_games:
        tag = " NEW" if g.appid in new else ""
        src = "" if g.launcher == "steam" else f"  [{g.launcher}]"
        size = steam.human_size(g.size_bytes) if g.size_bytes else ""
        print(f"  {g.name:<46}{src:<10} {size:>9}{tag}")
    if not selected:
        print("\n(no Steam libraries selected — `rigdoctor games libraries --all` to add them)")
    return 0


def cmd_games_libraries(args) -> int:
    from .core import steam

    discovered = steam.discover_libraries()
    selected = {os.path.realpath(p) for p in steam.selected_library_paths()}

    # --all / --enable / --disable adjust the selection, then we list the result.
    if args.all or args.enable or args.disable:
        if args.all:
            selected = {lib.path for lib in discovered}
        for raw in args.enable or []:
            selected.add(os.path.realpath(os.path.expanduser(raw)))
        for raw in args.disable or []:
            selected.discard(os.path.realpath(os.path.expanduser(raw)))
        config.update_config(steam_libraries=sorted(selected))

    if not discovered:
        print("No Steam libraries detected (is Steam installed?).")
        return 1
    if args.json:
        print(json.dumps([
            {"path": lib.path, "label": lib.label, "selected": lib.path in selected,
             "games": len(steam.scan_library(lib.path))}
            for lib in discovered
        ], indent=2, ensure_ascii=False))
        return 0
    print("Steam libraries (checked = scanned for games):\n")
    for lib in discovered:
        mark = "x" if lib.path in selected else " "
        count = len(steam.scan_library(lib.path))
        label = f"  [{lib.label}]" if lib.label else ""
        print(f"  [{mark}] {lib.path}{label}  ({count} games)")
    return 0


def build_parser() -> argparse.ArgumentParser:
    p = argparse.ArgumentParser(
        prog="rigdoctor",
        description="Hardware monitoring & crash diagnostics for Linux gamers.",
    )
    p.add_argument("-V", "--version", action="version", version=f"rigdoctor {__version__}")
    sub = p.add_subparsers(dest="command", required=True)

    sp = sub.add_parser("snapshot", help="print a one-shot reading of all sensors")
    sp.add_argument("--json", action="store_true", help="output JSON instead of text")
    sp.set_defaults(func=cmd_snapshot)

    mp = sub.add_parser("monitor", help="live monitor TUI (current/min/max, M2)")
    mp.add_argument("-n", "--interval", type=float, default=None, help="refresh interval (s)")
    mp.add_argument("--plain", action="store_true", help="plain redraw instead of the curses UI")
    mp.set_defaults(func=cmd_monitor)

    sub.add_parser("gui", help="launch the desktop GUI (needs PySide6)").set_defaults(func=cmd_gui)
    sub.add_parser("sources", help="list detected sensor sources").set_defaults(func=cmd_sources)

    inst = sub.add_parser("install", help="set up optional system dependencies (M9)")
    inst.add_argument("--check", action="store_true", help="report status only; install nothing")
    inst.add_argument("-y", "--yes", action="store_true", help="install without confirmation")
    inst.set_defaults(func=cmd_install)

    login = sub.add_parser("login", help="save a Gitea token for updates (M13)")
    login.add_argument("--token", default=None, help="token (prompted if omitted)")
    login.set_defaults(func=cmd_login)
    sub.add_parser("logout", help="remove the saved update token").set_defaults(func=cmd_logout)

    upd = sub.add_parser("update", help="check for / apply a newer version (M13)")
    upd.add_argument("--check", action="store_true", help="only report, don't apply")
    upd.set_defaults(func=cmd_update)

    unin = sub.add_parser("uninstall", help="remove the user-local install")
    unin.add_argument("--purge", action="store_true", help="also remove settings, token, and logs")
    unin.add_argument("-y", "--yes", action="store_true", help="don't ask for confirmation")
    unin.set_defaults(func=cmd_uninstall)

    rec = sub.add_parser("record", help="crash-capture logger (M3)")
    rec_sub = rec.add_subparsers(dest="record_cmd", required=True)

    run_p = rec_sub.add_parser("run", help="run the capture loop in the foreground (systemd-friendly)")
    run_p.add_argument("-n", "--interval", type=float, default=None, help="sampling interval (s)")
    run_p.add_argument("-o", "--out", default=None, help="log file path")
    run_p.add_argument("--game", default=None, help="tag the capture with a game name (M6/diagnose)")
    run_p.set_defaults(func=cmd_record_run)

    start_p = rec_sub.add_parser("start", help="start recording in the background")
    start_p.add_argument("-n", "--interval", type=float, default=None, help="sampling interval (s)")
    start_p.add_argument("-o", "--out", default=None, help="log file path")
    start_p.set_defaults(func=cmd_record_start)

    rec_sub.add_parser("stop", help="stop background recording").set_defaults(func=cmd_record_stop)
    rec_sub.add_parser("status", help="show recorder status").set_defaults(func=cmd_record_status)

    report_p = rec_sub.add_parser("report", help="summarize the captured log (post-crash)")
    report_p.add_argument("--last", type=int, default=10, help="recent samples to show")
    report_p.add_argument("--log", default=None, help="path to a capture log")
    report_p.set_defaults(func=cmd_record_report)

    rep = sub.add_parser("report", help="health report (M4): scan logs/SMART/driver for issues")
    rep.add_argument("--json", action="store_true", help="output JSON instead of text")
    rep.set_defaults(func=cmd_report)

    cp = sub.add_parser("collect-priv", help=argparse.SUPPRESS)  # internal: run via pkexec
    cp.set_defaults(func=cmd_collect_priv)

    inv = sub.add_parser("inventory", help="system inventory (M5): export hardware/OS details")
    inv.add_argument("--json", action="store_true", help="output JSON")
    inv.add_argument("--markdown", action="store_true", help="output Markdown (for forum/bug reports)")
    inv.add_argument("-o", "--output", default=None, help="write to a file instead of stdout")
    inv.set_defaults(func=cmd_inventory)

    games_p = sub.add_parser("games", help="Steam game & library detection (M6)")
    games_p.add_argument("--json", action="store_true", help="output JSON")
    games_p.set_defaults(func=cmd_games)
    games_sub = games_p.add_subparsers(dest="games_cmd")
    lib_p = games_sub.add_parser("libraries", help="list/select Steam libraries to scan")
    lib_p.add_argument("--enable", action="append", metavar="PATH", help="scan this library (repeatable)")
    lib_p.add_argument("--disable", action="append", metavar="PATH", help="stop scanning this library (repeatable)")
    lib_p.add_argument("--all", action="store_true", help="scan all detected libraries")
    lib_p.add_argument("--json", action="store_true", help="output JSON")
    lib_p.set_defaults(func=cmd_games_libraries)

    env_p = sub.add_parser("gameenv", help="gaming environment checks (M6): flag stability/perf settings")
    env_p.add_argument("--json", action="store_true", help="output JSON instead of text")
    env_p.set_defaults(func=cmd_gameenv)

    diag_p = sub.add_parser("diagnose", help="guided diagnostic: capture while gaming, then analyze")
    diag_sub = diag_p.add_subparsers(dest="diagnose_cmd")
    diag_start = diag_sub.add_parser("start", help="start a focused capture for a game")
    diag_start.add_argument("--game", default=None, help="game name to focus on")
    diag_start.add_argument("--appid", default=None, help="Steam appid to focus on (resolved to a name)")
    diag_start.add_argument("-n", "--interval", type=float, default=None, help="sampling interval (s)")
    diag_start.set_defaults(func=cmd_diagnose)
    diag_sub.add_parser("status", help="show the in-progress diagnostic").set_defaults(func=cmd_diagnose)
    diag_finish = diag_sub.add_parser("finish", help="stop the capture and analyze it")
    diag_finish.add_argument("--last", type=int, default=10, help="recent samples to show")
    diag_finish.set_defaults(func=cmd_diagnose)
    diag_p.set_defaults(func=cmd_diagnose, diagnose_cmd=None, last=10)

    wrap_p = sub.add_parser(
        "wrap", help="run a game with automatic crash-capture (Steam launch option, D12)")
    wrap_p.add_argument("command", nargs=argparse.REMAINDER,
                        help="the game command — use `rigdoctor wrap %%command%%` in Steam")
    wrap_p.set_defaults(func=cmd_wrap)

    watch_p = sub.add_parser("watch", help="auto-capture while a Steam game runs (game-launch trigger)")
    watch_p.add_argument("-n", "--interval", type=float, default=None, help="poll interval (s)")
    watch_p.set_defaults(func=cmd_watch)

    svc_p = sub.add_parser("service", help="crash-logger trigger mode + systemd --user service (M9/D6)")
    svc_sub = svc_p.add_subparsers(dest="service_cmd")
    svc_sub.add_parser("status", help="show the trigger mode and service state").set_defaults(func=cmd_service)
    mode_p = svc_sub.add_parser("mode", help="set the trigger mode")
    mode_p.add_argument("mode", choices=("manual", "always-on", "game-launch"))
    mode_p.set_defaults(func=cmd_service)
    svc_p.set_defaults(func=cmd_service, service_cmd=None)

    ai_p = sub.add_parser("ai", help="AI assistant (M14): explain diagnostics — opt-in, never automatic")
    ai_sub = ai_p.add_subparsers(dest="ai_cmd")
    ai_sub.add_parser("status", help="show the configured provider (contacts nothing)").set_defaults(func=cmd_ai)
    ai_sub.add_parser("test", help="send a tiny probe to verify connectivity").set_defaults(func=cmd_ai)
    ai_sub.add_parser("explain", help="explain the current health findings with AI").set_defaults(func=cmd_ai)
    ai_p.set_defaults(func=cmd_ai, ai_cmd=None)

    bundle_p = sub.add_parser("bundle", help="zip the latest stored diagnostic into a report bundle (M15)")
    bundle_p.set_defaults(func=cmd_bundle)
    return p


def main(argv: list[str] | None = None) -> int:
    from .core import applog

    applog.setup()  # opt-in app logging (M15); no-op unless logging_enabled
    args = build_parser().parse_args(argv)
    return args.func(args)


if __name__ == "__main__":
    sys.exit(main())