“เปิด The Rookie ในห้องนอน” — แล้วมันเล่นจริง

# jellyfin-targets.conf — per-installation target map
#
# THIS IS THE ONLY FILE THAT SHOULD DIFFER BETWEEN SITES.
#
# Sourced by play_jellyfin.sh and jellyfin-transport.sh. Deliberately contains
# no entity IDs derived from Jellyfin session IDs — those change per install
# and per app reinstall. Targets are resolved from /Sessions by client +
# device name.
#
# To fill this in on a new site:
#   1. Open Moonfin on each device.
#   2. Run: ~/scripts/play_jellyfin.sh --sessions
#   3. Copy the exact CLIENT and DEVICE strings into the case block below.
#   4. For LAUNCH_APP_ID (Android TV) use the app deep link. For tvOS,
#      LAUNCH_SOURCE is the app name from the Apple TV entity's source_list.

JELLYFIN_URL="${JELLYFIN_URL:-http://192.168.1.20:8096}"      # your server
JELLYFIN_USERNAME="${JELLYFIN_USERNAME:-your-user}"           # library user
HA_URL="${HA_URL:-http://192.168.1.10:8123}"                  # Home Assistant

# Sets the per-target variables. Returns 1 for an unknown target.
jellyfin_target() {
    case "$1" in
        appletv)
            SESSION_CLIENT="Moonfin for tvOS"
            SESSION_DEVICE="Apple TV"
            LAUNCH_ENTITY="media_player.apple_tv"
            LAUNCH_METHOD="appletv_source"
            LAUNCH_SOURCE="Moonfin"
            LAUNCH_APP_ID=""
            LAUNCH_REMOTE=""
            # Moonfin tvOS is slow twice over: ~17s to surface NowPlayingItem,
            # and ~15s reporting IsPaused with a frozen position while it is
            # genuinely playing. Measured. Do not lower without re-measuring.
            VERIFY_WINDOW=30
            ROOM_LABEL="living room"
            ;;
        chromecast)
            SESSION_CLIENT="Moonfin for Android TV"
            SESSION_DEVICE="Google Chromecast"
            LAUNCH_ENTITY="media_player.bedroom_tv"
            LAUNCH_METHOD="androidtv_app"
            LAUNCH_SOURCE=""
            # Use the app's DEEP LINK, not the bare package name. The Android
            # TV remote integration wraps bare packages in market://launch,
            # which the Play Store may refuse for sideloaded apps. Moonfin
            # registers the "moonfin" scheme; an id containing :// is passed
            # through as a direct VIEW intent, Play not involved.
            LAUNCH_APP_ID="moonfin://"
            # Android TV Remote entity for the SAME device: used to send HOME
            # before a relaunch, forcing a real background-to-foreground
            # cycle. A repeated launch intent at an already-running Moonfin
            # is ignored; the resume event is what makes >=2.5.0 reconnect
            # and re-post its remote-control capabilities.
            LAUNCH_REMOTE="remote.bedroom_tv"
            # Measured: surfaces its session in ~6s and reports state honestly.
            VERIFY_WINDOW=16
            ROOM_LABEL="bedroom"
            ;;
        *)
            return 1
            ;;
    esac
    return 0
}

# Every target name this site supports, for usage messages.
JELLYFIN_TARGETS="appletv chromecast"

#!/bin/bash
# play_jellyfin.sh - Play Jellyfin content on a Moonfin client via the Jellyfin
# Sessions remote-control API.
#
# Usage:
#   play_jellyfin.sh "Castle" appletv
#   play_jellyfin.sh "The Rookie" chromecast
#   play_jellyfin.sh "John Wick movie" appletv
#   play_jellyfin.sh --sessions            (list live sessions, for config)
#
# ── Design properties ────────────────────────────────────────────────────────
#   - fail-loud: each fatal stop sends a distinct alert (swap in your own
#     alerting in fail_loud below)
#   - distinct stops: server unreachable vs no match vs no session vs command
#     rejected vs never started vs started-then-died
#   - honest-synchronous: Home Assistant waits for this script, so the voice
#     agent only claims playback after it is VERIFIED; failures surface as its
#     spoken reply
#   - two-phase verification with a sustain re-check (a session that appears
#     and dies in a second is a real failure mode and must NOT verify)
#   - global time budget keeps the run inside HA's 60s shell_command kill window
#   - search ladder over query variants (STT says "and", libraries use "&")
#   - last stdout line is machine-readable: "PLAYING: ..." or "FAILED: ..."
#
# ── What is structurally different from Plex, and matters ────────────────────
# Plex Companion registers a discoverable client on :32500 that answers even
# when the app is backgrounded. Jellyfin has no equivalent: a session exists
# ONLY while the client app is running and connected. There is no port to poll.
#
# Consequences:
#   1. Readiness is "does a matching session appear in /Sessions", not "is a
#      port open" — and unlike a port, a Jellyfin session is a truthful signal.
#   2. If the app is not running we must launch it first; there is no fallback,
#      so the launch config below is mandatory.
#   3. Cold start is slower, because the app must fully connect to the server
#      before its session registers.
#
# Ticks: Jellyfin positions are 100-nanosecond ticks. 1 ms = 10,000 ticks.

set -Eeuo pipefail

SECRETS="$HOME/.config/secrets.env"   # holds JELLYFINAPI and HA_TOKEN
LOG="$HOME/logs/play-jellyfin.log"
BUDGET=50   # seconds; HA kills shell_command at 60s, HA-side pre-steps eat ~6s.
            # A cold tvOS start needs ~30s of launch-wait AND up to
            # VERIFY_WINDOW of verify; 45 could not hold both.

mkdir -p "$HOME/logs"

log() {
    echo "[$(date '+%H:%M:%S')] $*" | tee -a "$LOG"
}

# Fail loud: log, alert, terse machine-readable last line, non-zero exit.
fail_loud() {
    local reason="$1"
    local spoken="${2:-Could not play ${TITLE:-that} from Jellyfin.}"
    log "ERROR: $reason"
    # Substitute your own alerting (ntfy, Telegram, email...):
    "$HOME/scripts/alert-send.sh" "play_jellyfin: ${reason} — title='${TITLE:-?}' target=${TARGET:-?}" \
        >/dev/null 2>>"$LOG" || log "WARN: alert also failed"
    echo "FAILED: $spoken"
    exit 1
}

if [[ ! -f "$SECRETS" ]]; then
    log "ERROR: Secrets file not found: $SECRETS"
    exit 1
fi

source "$SECRETS"

TITLE="${1:-}"
TARGET="${2:-}"

# Per-site config: server URL, library user, HA URL, and the target map.
# The ONLY file that should differ between installations.
TARGETS_CONF="$HOME/scripts/jellyfin-targets.conf"
[[ -f "$TARGETS_CONF" ]] || { echo "FAILED: jellyfin-targets.conf missing."; exit 1; }
source "$TARGETS_CONF"

: "${JELLYFINAPI:?JELLYFINAPI is missing from secrets.env}"

# Discovery helper: prints every live session so the target map can be filled
# in with the exact Client / DeviceName strings. Open Moonfin on the device
# first, then: play_jellyfin.sh --sessions
if [[ "$TITLE" == "--sessions" ]]; then
    curl -sS -f -H "Authorization: MediaBrowser Token=\"${JELLYFINAPI}\", Client=\"MorisonicsVoice\", Device=\"voice-host\", DeviceId=\"morisonics-voice-1\", Version=\"1.0\"" -H "Accept: application/json" \
        --max-time 15 "${JELLYFIN_URL}/Sessions" \
    | python3 -c '
import json, sys
rows = json.load(sys.stdin)
if not rows:
    print("(no sessions — open the app on the device first)"); sys.exit(0)
print("%-28s %-22s %-6s %s" % ("CLIENT", "DEVICE", "REMOTE", "SESSION ID"))
for s in rows:
    print("%-28s %-22s %-6s %s" % (
        (s.get("Client") or "")[:28],
        (s.get("DeviceName") or "")[:22],
        "yes" if s.get("SupportsRemoteControl") else "no",
        s.get("Id", "")))
'
    exit 0
fi

[[ -z "$TITLE" || -z "$TARGET" ]] && {
    log "Usage: play_jellyfin.sh <title> <appletv|chromecast>"
    log "       play_jellyfin.sh --sessions      (list live sessions)"
    fail_loud "called without title/target (usage error)"
}

: "${HA_TOKEN:?HA_TOKEN is missing from secrets.env}"

LAUNCHED=0
jellyfin_target "$TARGET" || fail_loud "unknown target: $TARGET (known: ${JELLYFIN_TARGETS})"

jf() {
    # jf <path-with-query> [curl args...]
    local path="$1"; shift
    curl -sS -f -H "Authorization: MediaBrowser Token=\"${JELLYFINAPI}\", Client=\"MorisonicsVoice\", Device=\"voice-host\", DeviceId=\"morisonics-voice-1\", Version=\"1.0\"" -H "Accept: application/json" \
        --max-time 15 "${JELLYFIN_URL}${path}" "$@" 2>>"$LOG"
}

urlencode() {
    python3 -c "import urllib.parse,sys; print(urllib.parse.quote(sys.argv[1]))" "$1"
}

# Set whenever any Jellyfin endpoint answers — distinguishes "no match" from
# "server unreachable".
JF_HTTP_OK=0

# ── Resolve the library user ─────────────────────────────────────────────────
USERS_JSON="$(jf "/Users")" || fail_loud "Jellyfin server unreachable (/Users failed)" \
    "The Jellyfin server is not responding."
JF_HTTP_OK=1

USER_ID=$(DATA="$USERS_JSON" NAME="$JELLYFIN_USERNAME" python3 -c '
import json, os, sys
users = json.loads(os.environ["DATA"])
want = os.environ["NAME"].strip().lower()
for u in users:
    if (u.get("Name") or "").strip().lower() == want:
        print(u.get("Id", "")); sys.exit(0)
# Fall back to the first administrator, then simply the first user.
for u in users:
    if (u.get("Policy") or {}).get("IsAdministrator"):
        print(u.get("Id", "")); sys.exit(0)
print(users[0].get("Id", "") if users else "")
')
[[ -n "$USER_ID" ]] || fail_loud "could not resolve a Jellyfin user id (looked for '${JELLYFIN_USERNAME}')"
log "User: ${JELLYFIN_USERNAME} (${USER_ID})"

# ── Intent hints ─────────────────────────────────────────────────────────────
LOWER_TITLE="$(echo "$TITLE" | tr '[:upper:]' '[:lower:]')"
PREFER_MOVIE=0
if [[ "$LOWER_TITLE" =~ (^|[[:space:]])(movie|film)([[:space:]]|$) ]]; then
    PREFER_MOVIE=1
fi

SEARCH_TITLE=$(python3 -c '
import re, sys
s = sys.argv[1]
s = re.sub(r"\b(tv show|movie|film|series|show|tv)\b", "", s, flags=re.I)
s = " ".join(s.split())
print(s if s else sys.argv[1])
' "$TITLE")

log "Looking for '$TITLE' → search='$SEARCH_TITLE' → $TARGET"

mapfile -t QUERY_VARIANTS < <(python3 -c '
import re, sys
s = sys.argv[1]
out = []
def add(v):
    v = " ".join(v.split())
    if v and v.lower() not in [o.lower() for o in out]:
        out.append(v)
add(s)
add(re.sub(r"\band\b", "&", s, flags=re.I))
add(s.replace("&", " and "))
add(re.sub(r"[^\w\s&]", " ", s))
print("\n".join(out))
' "$SEARCH_TITLE")

ITEM=""

# ── Pickers ──────────────────────────────────────────────────────────────────
# One shared normaliser: lowercase, & ↔ and, leading "the" dropped,
# whitespace collapsed.
PICKER_PRELUDE='
import json, os, re, sys

def norm(s):
    s = (s or "").lower().strip()
    s = s.replace("&", " and ")
    s = re.sub(r"^the\s+", "", s)
    return " ".join(s.split())

def rank(items, query, key):
    exact    = [i for i in items if norm(key(i)) == query]
    contains = [i for i in items if query in norm(key(i)) or norm(key(i)) in query]
    return exact or contains or items
'

choose_by_type() {
    # choose_by_type <json> <query> <Type>
    DATA="$1" QUERY="$2" WANT="$3" python3 -c "${PICKER_PRELUDE}"'
try:
    data = json.loads(os.environ["DATA"])
except Exception:
    sys.exit(0)
query = norm(os.environ["QUERY"])
want = os.environ["WANT"]
items = [i for i in (data.get("Items") or []) if i.get("Type") == want]
if not items:
    sys.exit(0)
print(json.dumps(rank(items, query, lambda i: i.get("Name"))[0]))
'
}

choose_hint() {
    # choose_hint <json from /Search/Hints> <query>
    DATA="$1" QUERY="$2" python3 -c "${PICKER_PRELUDE}"'
try:
    data = json.loads(os.environ["DATA"])
except Exception:
    sys.exit(0)
query = norm(os.environ["QUERY"])
hints = data.get("SearchHints") or []
if not hints:
    sys.exit(0)

movies   = [h for h in hints if h.get("Type") == "Movie"]
series   = [h for h in hints if h.get("Type") == "Series"]
episodes = [h for h in hints if h.get("Type") == "Episode"]

movie_exact   = [h for h in movies   if norm(h.get("Name")) == query]
episode_exact = [h for h in episodes if norm(h.get("Name")) == query]
series_exact  = [h for h in series   if norm(h.get("Name")) == query]
ep_show_exact = [h for h in episodes if norm(h.get("SeriesName")) == query]
movie_part    = [h for h in movies   if query in norm(h.get("Name")) or norm(h.get("Name")) in query]
series_part   = [h for h in series   if query in norm(h.get("Name")) or norm(h.get("Name")) in query]
episode_part  = [h for h in episodes if query in norm(h.get("Name")) or norm(h.get("Name")) in query]
playable      = [h for h in hints if h.get("Type") in ("Movie", "Series", "Episode")]

chosen = (movie_exact or series_exact or ep_show_exact or episode_exact
          or movie_part or series_part or episode_part or playable)
if not chosen:
    sys.exit(0)
h = chosen[0]
# Normalise a hint into an item-shaped dict.
print(json.dumps({
    "Id": h.get("ItemId") or h.get("Id"),
    "Name": h.get("Name"),
    "Type": h.get("Type"),
    "SeriesName": h.get("SeriesName"),
    "IndexNumber": h.get("IndexNumber"),
    "ParentIndexNumber": h.get("ParentIndexNumber"),
    "UserData": {},
}))
'
}

# Episode selection: resume first (most recently played), then first unwatched
# in season/episode order, then the beginning.
choose_episode() {
    python3 -c '
import json, sys

try:
    data = json.load(sys.stdin)
except Exception as e:
    print(f"EPISODE_PICKER_ERROR: {e}", file=sys.stderr); sys.exit(1)

eps = [i for i in (data.get("Items") or []) if i.get("Type") == "Episode"]
if not eps:
    print("EPISODE_PICKER_ERROR: no episodes", file=sys.stderr); sys.exit(1)

def iv(v, d=0):
    try: return int(v)
    except Exception: return d

def ud(e, k, d=0):
    return (e.get("UserData") or {}).get(k, d)

def order(e):
    return (iv(e.get("ParentIndexNumber"), 9999),
            iv(e.get("IndexNumber"), 9999),
            str(e.get("Id", "")))

resume = [e for e in eps if iv(ud(e, "PlaybackPositionTicks")) > 0 and not ud(e, "Played", False)]
if resume:
    resume.sort(key=lambda e: (str(ud(e, "LastPlayedDate", "")), iv(ud(e, "PlaybackPositionTicks"))),
                reverse=True)
    print(json.dumps(resume[0])); sys.exit(0)

unwatched = [e for e in eps if not ud(e, "Played", False)]
if unwatched:
    unwatched.sort(key=order)
    print(json.dumps(unwatched[0])); sys.exit(0)

eps.sort(key=order)
print(json.dumps(eps[0]))
'
}

# ── Search rungs ─────────────────────────────────────────────────────────────

try_resume() {
    # Jellyfin's equivalent of on-deck. Non-fatal: this endpoint has moved
    # between Jellyfin versions and must never be a hard stop.
    local resume
    resume=$(jf "/Users/${USER_ID}/Items/Resume?Limit=30&Fields=UserData&MediaTypes=Video") || {
        log "WARN: Resume fetch failed — continuing with search"
        return 1
    }
    JF_HTTP_OK=1

    ITEM=$(DATA="$resume" QUERY="$SEARCH_TITLE" python3 -c "${PICKER_PRELUDE}"'
try:
    data = json.loads(os.environ["DATA"])
except Exception:
    sys.exit(0)
query = norm(os.environ["QUERY"])
for i in (data.get("Items") or []):
    name = norm(i.get("Name"))
    show = norm(i.get("SeriesName") or i.get("Name"))
    if query in (name, show) or query in show or show in query or query in name or name in query:
        print(json.dumps(i)); sys.exit(0)
' 2>/dev/null || true)

    [[ -n "$ITEM" ]]
}

resolve_series_to_episode() {
    # $1 = series item JSON. Prefers NextUp, falls back to the full episode list.
    local series_item series_id series_name nextup episodes
    series_item="$1"
    series_id=$(DATA="$series_item" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("Id",""))')
    series_name=$(DATA="$series_item" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("Name",""))')
    [[ -n "$series_id" ]] || return 1

    log "Matched series: $series_name ($series_id)"

    # NextUp is Jellyfin's own "what should play next" — cheaper and smarter
    # than reimplementing it, but it returns nothing for a never-started series.
    nextup=$(jf "/Shows/NextUp?userId=${USER_ID}&seriesId=${series_id}&Fields=UserData&Limit=1") || nextup=""
    if [[ -n "$nextup" ]]; then
        ITEM=$(DATA="$nextup" python3 -c '
import json, os, sys
items = (json.loads(os.environ["DATA"]).get("Items") or [])
if items:
    print(json.dumps(items[0]))
' 2>/dev/null || true)
        if [[ -n "$ITEM" ]]; then
            log "NextUp supplied the episode"
            return 0
        fi
    fi

    episodes=$(jf "/Shows/${series_id}/Episodes?userId=${USER_ID}&Fields=UserData") || {
        log "WARN: could not fetch episodes for: $series_name"
        return 1
    }
    ITEM="$(printf "%s" "$episodes" | choose_episode 2>>"$LOG" || true)"
    [[ -n "$ITEM" ]]
}

try_items_search() {
    # try_items_search <Series|Movie>
    local want="$1" search picked
    log "Searching ${want}..."
    search=$(jf "/Items?userId=${USER_ID}&searchTerm=${ENCODED_TITLE}&IncludeItemTypes=${want}&Recursive=true&Limit=15&Fields=UserData") || {
        log "WARN: ${want} search failed"
        return 1
    }
    JF_HTTP_OK=1

    picked="$(choose_by_type "$search" "$SEARCH_TITLE" "$want" 2>/dev/null || true)"
    [[ -n "$picked" ]] || return 1

    if [[ "$want" == "Series" ]]; then
        resolve_series_to_episode "$picked"
    else
        ITEM="$picked"
    fi
    [[ -n "$ITEM" ]]
}

try_hint_search() {
    # /Search/Hints is the fuzzier rung — and the one that matches episode titles.
    local search hint hint_type
    log "Trying Jellyfin search hints (matches episode titles)..."
    search=$(jf "/Search/Hints?searchTerm=${ENCODED_TITLE}&userId=${USER_ID}&includeItemTypes=Movie,Series,Episode&limit=15") || {
        log "WARN: hint search failed"
        return 1
    }
    JF_HTTP_OK=1

    hint="$(choose_hint "$search" "$SEARCH_TITLE" 2>/dev/null || true)"
    [[ -n "$hint" ]] || return 1

    hint_type=$(DATA="$hint" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("Type",""))')
    if [[ "$hint_type" == "Series" ]]; then
        resolve_series_to_episode "$hint"
    else
        ITEM="$hint"
    fi
    [[ -n "$ITEM" ]]
}

# ── 1. Resume, unless a movie was explicitly asked for ───────────────────────
if [[ "$PREFER_MOVIE" -eq 0 ]]; then
    try_resume || true
fi

# ── 2. Search ladder over query variants ─────────────────────────────────────
# TV-first by default: voice requests like "The Rookie" usually mean the series.
if [[ -z "$ITEM" ]]; then
    for VARIANT in "${QUERY_VARIANTS[@]}"; do
        SEARCH_TITLE="$VARIANT"
        ENCODED_TITLE="$(urlencode "$VARIANT")"
        log "Search variant: '$VARIANT'"
        if [[ "$PREFER_MOVIE" -eq 1 ]]; then
            try_items_search Movie || try_items_search Series || try_hint_search || true
        else
            try_items_search Series || try_items_search Movie || try_hint_search || true
        fi
        [[ -n "$ITEM" ]] && break
    done
fi

if [[ -z "$ITEM" ]]; then
    if [[ "$JF_HTTP_OK" -eq 0 ]]; then
        fail_loud "Jellyfin server unreachable (resume and all search endpoints failed)" \
            "The Jellyfin server is not responding."
    fi
    fail_loud "no Jellyfin match for '$TITLE' (tried ${#QUERY_VARIANTS[@]} query variants incl. hints)" \
        "Could not find ${TITLE} in the Jellyfin library."
fi

# ── 3. Extract metadata ──────────────────────────────────────────────────────
ITEM_ID=$(DATA="$ITEM" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("Id",""))')
ITEM_TYPE=$(DATA="$ITEM" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("Type",""))')
EP_TITLE=$(DATA="$ITEM" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("Name",""))')
SHOW_TITLE=$(DATA="$ITEM" python3 -c 'import json,os; d=json.loads(os.environ["DATA"]); print(d.get("SeriesName") or d.get("Name",""))')
SEASON=$(DATA="$ITEM" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("ParentIndexNumber") or "")')
EPISODE=$(DATA="$ITEM" python3 -c 'import json,os; print(json.loads(os.environ["DATA"]).get("IndexNumber") or "")')
START_TICKS=$(DATA="$ITEM" python3 -c '
import json, os
d = json.loads(os.environ["DATA"])
ud = d.get("UserData") or {}
print(int(ud.get("PlaybackPositionTicks") or 0))
')

[[ -n "$ITEM_ID" ]] || fail_loud "matched an item with no Id (unexpected API shape)"

if [[ "$ITEM_TYPE" == "Episode" ]]; then
    log "Found episode: $SHOW_TITLE S${SEASON}E${EPISODE} / $EP_TITLE (ticks=${START_TICKS})"
else
    log "Found ${ITEM_TYPE}: $EP_TITLE (ticks=${START_TICKS})"
fi

# ── 4. Find the target session, launching the app if needed ──────────────────
# A session in /Sessions IS the readiness signal, and it is a truthful one:
# if it is there, the app is connected.

find_session_id() {
    local sessions
    sessions=$(jf "/Sessions") || return 1
    JF_HTTP_OK=1
    DATA="$sessions" WANT_CLIENT="$SESSION_CLIENT" WANT_DEVICE="$SESSION_DEVICE" python3 -c '
import json, os, sys
try:
    sessions = json.loads(os.environ["DATA"])
except Exception:
    sys.exit(1)
wc = os.environ["WANT_CLIENT"].strip().lower()
wd = os.environ["WANT_DEVICE"].strip().lower()

cands = []
for s in sessions:
    client = (s.get("Client") or "").strip().lower()
    device = (s.get("DeviceName") or "").strip().lower()
    if not s.get("SupportsRemoteControl"):
        continue
    if wc and wc not in client:
        continue
    if wd and wd not in device:
        continue
    cands.append((client, device, s.get("Id", "")))

if not cands:
    sys.exit(1)

# Prefer an exact client-name match. "Moonfin" is a SUBSTRING of "Moonfin for
# tvOS", so a loose match would silently play to the wrong room. Wrong-room
# actuation is worse than failing: if the candidates cannot be narrowed to
# exactly one, refuse and report them.
exact = [c for c in cands if c[0] == wc] if wc else []
if wd:
    exact_dev = [c for c in (exact or cands) if c[1] == wd]
    if len(exact_dev) == 1:
        print(exact_dev[0][2]); sys.exit(0)

pool = exact or cands
if len(pool) == 1:
    print(pool[0][2]); sys.exit(0)

sys.stderr.write("AMBIGUOUS: %d sessions match client=%r device=%r -> %s\n" % (
    len(pool), wc, wd, "; ".join("%s / %s" % (c[0], c[1]) for c in pool)))
sys.exit(2)
'
}

# A matching session that refuses remote control is its own failure state and
# must be NAMED, not hidden inside "no session". Observed: after an app
# update, tvOS Moonfin re-registered with SupportsRemoteControl=false until
# the Apple TV itself was restarted — the generic "did not come online" error
# turned a one-line fix into a forty-minute mystery.
find_uncontrollable() {
    local sessions
    sessions=$(jf "/Sessions") || return 1
    DATA="$sessions" WANT_CLIENT="$SESSION_CLIENT" WANT_DEVICE="$SESSION_DEVICE" python3 -c '
import json, os, sys
try:
    sessions = json.loads(os.environ["DATA"])
except Exception:
    sys.exit(1)
wc = os.environ["WANT_CLIENT"].strip().lower()
wd = os.environ["WANT_DEVICE"].strip().lower()
for s in sessions:
    client = (s.get("Client") or "").strip().lower()
    device = (s.get("DeviceName") or "").strip().lower()
    if wc and wc not in client:
        continue
    if wd and wd not in device:
        continue
    if not s.get("SupportsRemoteControl"):
        print("%s / %s" % (s.get("Client"), s.get("DeviceName")))
        sys.exit(0)
sys.exit(1)
'
}

ha_service() {
    # ha_service <domain/service> <json body>
    curl -sS -f -X POST "${HA_URL}/api/services/$1" \
        -H "Authorization: Bearer ${HA_TOKEN}" \
        -H "Content-Type: application/json" \
        -d "$2" --max-time 10 >/dev/null 2>>"$LOG"
}

# Prints the entity's source_list — used to explain a failed select_source
# rather than leaving the operator guessing at the app's exact name.
report_sources() {
    curl -sS -f "${HA_URL}/api/states/${LAUNCH_ENTITY}" \
        -H "Authorization: Bearer ${HA_TOKEN}" --max-time 10 2>>"$LOG" \
    | python3 -c '
import json, sys
try:
    a = json.load(sys.stdin).get("attributes", {})
except Exception:
    sys.exit(0)
srcs = a.get("source_list") or []
print("  available sources: " + (", ".join(map(str, srcs)) if srcs else "(none reported)"))
' 2>>"$LOG" || true
}

launch_app() {
    case "$LAUNCH_METHOD" in
        androidtv_app)
            [[ -n "$LAUNCH_APP_ID" ]] || return 1
            ha_service "media_player/play_media" \
                "{\"entity_id\": \"${LAUNCH_ENTITY}\", \"media_content_type\": \"app\", \"media_content_id\": \"${LAUNCH_APP_ID}\"}"
            ;;
        appletv_source)
            [[ -n "$LAUNCH_SOURCE" ]] || return 1
            # The Apple TV sleeps; select_source on a sleeping device does
            # nothing. Wake it and then VERIFY it actually woke (entity state
            # leaves off/standby) before launching.
            ha_service "media_player/turn_on" "{\"entity_id\": \"${LAUNCH_ENTITY}\"}" || true
            local _waited=0 _atv_state=""
            while (( _waited < 12 )); do
                _atv_state=$(curl -sS -f "${HA_URL}/api/states/${LAUNCH_ENTITY}" \
                    -H "Authorization: Bearer ${HA_TOKEN}" --max-time 5 2>>"$LOG" \
                    | python3 -c 'import json,sys; print(json.load(sys.stdin).get("state",""))' 2>>"$LOG" || echo "")
                if [[ -n "$_atv_state" && "$_atv_state" != "off" && "$_atv_state" != "standby" && "$_atv_state" != "unavailable" ]]; then
                    break
                fi
                sleep 2
                _waited=$(( _waited + 2 ))
            done
            if [[ -z "$_atv_state" || "$_atv_state" == "off" || "$_atv_state" == "standby" || "$_atv_state" == "unavailable" ]]; then
                log "WARN: ${LAUNCH_ENTITY} still '${_atv_state:-unreachable}' after wake attempts — launching anyway"
            else
                log "${LAUNCH_ENTITY} awake (state=${_atv_state}) after ${_waited}s"
            fi
            ha_service "media_player/select_source" \
                "{\"entity_id\": \"${LAUNCH_ENTITY}\", \"source\": \"${LAUNCH_SOURCE}\"}" || {
                log "WARN: select_source '${LAUNCH_SOURCE}' failed"
                report_sources | tee -a "$LOG"
                return 1
            }
            ;;
        *)
            return 1
            ;;
    esac
}

# Is a launch path actually configured for this target?
LAUNCH_CONFIGURED=0
if [[ "$LAUNCH_METHOD" == "androidtv_app" && -n "$LAUNCH_APP_ID" ]]; then
    LAUNCH_CONFIGURED=1
fi
if [[ "$LAUNCH_METHOD" == "appletv_source" && -n "$LAUNCH_SOURCE" ]]; then
    LAUNCH_CONFIGURED=1
fi

# Wake the display FIRST, before any app-launch attempt. An app-launch command
# sent to a sleeping device is silently dropped — the TV comes up on the
# launcher while a stale background session accepts playback invisibly.
if [[ -n "${LAUNCH_ENTITY:-}" ]]; then
    ha_service "media_player/turn_on" "{\"entity_id\": \"${LAUNCH_ENTITY}\"}" \
        && log "Sent turn_on to ${LAUNCH_ENTITY}" \
        || log "WARN: turn_on for ${LAUNCH_ENTITY} failed (continuing)"
    sleep 2
fi

SESSION_ID="$(find_session_id || true)"

if [[ -z "$SESSION_ID" ]]; then
    if [[ "$LAUNCH_CONFIGURED" -eq 1 ]]; then
        log "No ${SESSION_CLIENT} session — launching Moonfin on ${LAUNCH_ENTITY} (${LAUNCH_METHOD})..."
        LAUNCHED=1
        launch_app || log "WARN: app launch via HA failed — polling anyway"
        LAST_LAUNCH=$SECONDS
        # Launch-wait must match the TARGET's measured session-registration
        # time, not a global constant: a cold tvOS Moonfin can register its
        # server session AFTER a too-eager cutoff — walking away from a
        # launch that had actually worked.
        while (( SECONDS < BUDGET - 12 )); do
            SESSION_ID="$(find_session_id || true)"
            [[ -n "$SESSION_ID" ]] && break
            # Re-sends are ANDROID-ONLY. On tvOS every select_source RESTARTS
            # Moonfin and kills the server handshake it was mid-way through.
            # Launch once, then wait patiently; check for late success instead.
            # 15s between cycles: a cold Moonfin needs ~10-15s to boot AND
            # finish its handshake — an 8s cycle interrupts registration
            # mid-flight, repeatedly.
            if [[ "$LAUNCH_METHOD" == "androidtv_app" ]] && (( SECONDS - LAST_LAUNCH >= 15 )); then
                # A repeated launch intent at an already-running Moonfin is
                # IGNORED. If a remote entity is configured, send HOME first —
                # a real background→foreground cycle fires onAppResumed, which
                # is what makes Moonfin ≥2.5.0 reconnect its socket and
                # re-post capabilities.
                if [[ -n "${LAUNCH_REMOTE:-}" ]]; then
                    log "Cycling Moonfin: HOME, then relaunch..."
                    ha_service "remote/send_command" \
                        "{\"entity_id\": \"${LAUNCH_REMOTE}\", \"command\": \"HOME\"}" \
                        || log "WARN: HOME via ${LAUNCH_REMOTE} failed"
                    sleep 2
                else
                    log "Re-sending app launch..."
                fi
                launch_app || true
                LAST_LAUNCH=$SECONDS
            fi
            sleep 2
        done
    else
        log "No session and no launch path configured for ${TARGET}"
    fi
fi

if [[ -z "$SESSION_ID" ]]; then
    if [[ "$LAUNCH_CONFIGURED" -eq 0 ]]; then
        fail_loud "no ${SESSION_CLIENT:-configured} session and no launch path for ${TARGET}" \
            "Please open Moonfin on the ${TARGET} first."
    fi
    UNCTRL="$(find_uncontrollable || true)"
    if [[ -n "$UNCTRL" ]]; then
        fail_loud "session for ${TARGET} exists but SupportsRemoteControl=false (${UNCTRL}) — restart the device (proven remedy)" \
            "Moonfin is open on the ${TARGET} but not accepting control. Restarting that TV device fixes this."
    fi
    # Moonfin that fails its FIRST connect (server still warming after a
    # restart) never retries on its own — but a relaunch against a warm server
    # registers in ~6s. So on the way out, fire one last HOME+relaunch so the
    # app boots fresh against the now-warm server, and tell the user the
    # truth: the retry will work.
    if [[ "$LAUNCHED" -eq 1 && "$LAUNCH_METHOD" == "androidtv_app" && -n "${LAUNCH_REMOTE:-}" ]]; then
        log "Parting shot: HOME + relaunch so the NEXT attempt finds a live session"
        ha_service "remote/send_command" \
            "{\"entity_id\": \"${LAUNCH_REMOTE}\", \"command\": \"HOME\"}" || true
        sleep 2
        launch_app || true
        fail_loud "no controllable session appeared on ${TARGET} within budget (parting relaunch fired)" \
            "The ${TARGET} app is still starting up. Ask me again in half a minute."
    fi
    fail_loud "no controllable session appeared on ${TARGET} within budget" \
        "The ${TARGET} did not come online, so ${TITLE} is not playing."
fi

log "Target session: ${SESSION_ID} (t=${SECONDS}s)"

# A live session does NOT mean the display is on, and it does NOT mean the app
# is on screen — Moonfin keeps its session while backgrounded, so playback
# sent to it progresses invisibly and then stalls. ALWAYS bring the app to the
# foreground; a relaunch can register a NEW session, so re-resolve afterwards.
if [[ "$LAUNCH_CONFIGURED" -eq 1 ]]; then
    log "Foregrounding Moonfin on ${LAUNCH_ENTITY} (${LAUNCH_METHOD})..."
    launch_app || log "WARN: app foreground failed (continuing)"
    sleep 4
    NEW_SID="$(find_session_id || true)"
    if [[ -n "$NEW_SID" && "$NEW_SID" != "$SESSION_ID" ]]; then
        log "Session changed after foregrounding: ${SESSION_ID} -> ${NEW_SID}"
        SESSION_ID="$NEW_SID"
    fi
fi

# ── 5. Play, verify, sustain-check, single retry ─────────────────────────────
# Exit codes:
#   0 verified   4 command rejected   5 never started   6 started then died
#   7 loaded but never played (backgrounded / display off)

send_play() {
    curl -sS -f -X POST \
        -H "Authorization: MediaBrowser Token=\"${JELLYFINAPI}\", Client=\"MorisonicsVoice\", Device=\"voice-host\", DeviceId=\"morisonics-voice-1\", Version=\"1.0\"" \
        -H "Content-Length: 0" \
        --max-time 15 \
        "${JELLYFIN_URL}/Sessions/${SESSION_ID}/Playing?playCommand=PlayNow&itemIds=${ITEM_ID}&startPositionTicks=${START_TICKS}" \
        >/dev/null 2>>"$LOG"
}

# Prints "<state> <ticks>" when the target session is playing OUR item.
observe() {
    local sessions
    sessions=$(jf "/Sessions") || return 1
    DATA="$sessions" SID="$SESSION_ID" IID="$ITEM_ID" python3 -c '
import json, os, sys
try:
    sessions = json.loads(os.environ["DATA"])
except Exception:
    sys.exit(1)
sid, iid = os.environ["SID"], os.environ["IID"]
for s in sessions:
    if s.get("Id") != sid:
        continue
    npi = s.get("NowPlayingItem") or {}
    if npi.get("Id") != iid:
        sys.exit(1)
    ps = s.get("PlayState") or {}
    state = "paused" if ps.get("IsPaused") else "playing"
    print("%s %s" % (state, ps.get("PositionTicks") or 0))
    sys.exit(0)
sys.exit(1)
'
}

play_and_verify() {
    local attempt="$1" deadline first second
    log "Sending play command (attempt ${attempt}, t=${SECONDS}s)..."

    # RESTART SAFETY: on a retry, look for an existing session first. A blind
    # re-send restarts the player mid-startup — exactly the "started then
    # stopped" failure retries used to cause.
    if [[ "$attempt" != "1" ]] && observe >/dev/null 2>&1; then
        log "note attempt=${attempt}: already playing — skipping resend, verifying instead"
    else
        send_play || { log "PLAY_ERROR attempt=${attempt}: Playing command rejected"; return 4; }
    fi

    # ── Verification: poll for TWO CONSECUTIVE "playing" samples ─────────────
    #
    # Measured on real clients. A single sample cannot tell these apart,
    # because at any given instant they look identical:
    #
    #   Android TV, app BACKGROUNDED (really not visible):
    #       playing 4914130000 -> paused 4933280000     (advances, then pauses)
    #   Apple TV, genuinely playing on screen:
    #       paused 2753000000 -> paused 2753000000      (for the first ~15s!)
    #       ... then later: playing -> playing
    #
    # tvOS Moonfin reports IsPaused=true with a frozen position for roughly
    # the first 15 seconds of real playback — its PlayState lags reality. So
    # a snapshot at a fixed moment produced a false NEGATIVE on the Apple TV
    # and a false POSITIVE on the Chromecast, in successive versions of this
    # check.
    #
    # What separates them is behaviour over time: a backgrounded client
    # DEGRADES (playing -> paused), a real one HOLDS (playing -> playing).
    # Position is deliberately NOT part of the test: tvOS was observed ticking
    # BACKWARDS while genuinely playing (10000000 -> 9000000).
    local cur state ticks consec=0 saw_item=0 misses=0
    deadline=$(( SECONDS + (attempt == 1 ? VERIFY_WINDOW : 12) ))
    # Never let the verify window sail past the global budget: HA kills the
    # shell at 60s, and a truncated run reports NOTHING — worse than an
    # honest shorter verify.
    (( deadline > BUDGET )) && deadline=$BUDGET

    while (( SECONDS < deadline )); do
        cur="$(observe 2>/dev/null || true)"

        if [[ -z "$cur" ]]; then
            # Tolerate a single blank read (transient API hiccup); two in a
            # row after the item was seen means the session really dropped it.
            if (( saw_item )); then
                misses=$(( misses + 1 ))
                if (( misses >= 2 )); then
                    log "PLAY_ERROR attempt=${attempt}: item was loaded but the session dropped it"
                    return 6
                fi
            fi
            sleep 2
            continue
        fi

        misses=0
        saw_item=1
        read -r state ticks <<< "$cur"

        if [[ "$state" == "playing" ]]; then
            consec=$(( consec + 1 ))
            if (( consec >= 2 )); then
                log "VERIFIED attempt=${attempt}: two consecutive playing samples (${cur}, t=${SECONDS}s)"
                return 0
            fi
        else
            consec=0
        fi
        sleep 2
    done

    if (( saw_item )); then
        log "PLAY_ERROR attempt=${attempt}: item loaded but never reported playing twice in ${VERIFY_WINDOW}s"
        return 7
    fi
    log "PLAY_ERROR attempt=${attempt}: command sent but the item never appeared in the session"
    return 5
}

RC=0
play_and_verify 1 || RC=$?

# A retry costs ~14s. Gate on the real remaining budget rather than a fixed
# constant, so widening a verify window for a slow client does not silently
# disable the retry.
if [[ "$RC" -ne 0 ]] && (( SECONDS + 14 < BUDGET )); then
    log "WARN: attempt 1 failed (code $RC) — retrying once..."
    sleep 2
    RC=0
    play_and_verify 2 || RC=$?
elif [[ "$RC" -ne 0 ]]; then
    log "WARN: attempt 1 failed (code $RC) — no budget left for a retry (t=${SECONDS}s)"
fi

# Late-success grace watch. A launch that was merely SLOW can start playing
# moments after the verify window closes. Observing costs no resend, so spend
# every remaining second watching before declaring failure.
if [[ "$RC" -ne 0 ]]; then
    GRACE_CONSEC=0
    while (( SECONDS < BUDGET - 1 )); do
        CUR="$(observe 2>/dev/null || true)"
        if [[ "${CUR%% *}" == "playing" ]]; then
            GRACE_CONSEC=$(( GRACE_CONSEC + 1 ))
            if (( GRACE_CONSEC >= 2 )); then
                log "VERIFIED late (grace watch): playback started after the verify window (${CUR}, t=${SECONDS}s)"
                RC=0
                break
            fi
        else
            GRACE_CONSEC=0
        fi
        sleep 2
    done
fi

if [[ "$RC" -ne 0 ]]; then
    case "$RC" in
        4) fail_loud "session ${SESSION_ID} on ${TARGET} rejected the Playing command" \
               "The ${TARGET} did not respond, so ${TITLE} is not playing." ;;
        5) fail_loud "play command sent but playback never started on ${TARGET}" \
               "${TITLE} did not start playing on the ${TARGET}." ;;
        6) fail_loud "playback started on ${TARGET} but died within seconds" \
               "${TITLE} started and then immediately stopped on the ${TARGET}." ;;
        7) fail_loud "item loaded on ${TARGET} but never reported playing twice (backgrounded / display off?)" \
               "${TITLE} is loaded on the ${TARGET} but not playing. The screen may be off." ;;
        *) fail_loud "playback failed with unexpected code $RC" ;;
    esac
fi

log "Playback verified on $TARGET: $SHOW_TITLE / $EP_TITLE (t=${SECONDS}s)"
if [[ "$ITEM_TYPE" == "Episode" ]]; then
    echo "PLAYING: $SHOW_TITLE S${SEASON}E${EPISODE} ($EP_TITLE) on the $TARGET"
else
    echo "PLAYING: $EP_TITLE on the $TARGET"
fi

# configuration.yaml — the bridge between the voice agent and the script.
# NOTE: adding a shell_command needs `shell_command.reload` (or a restart)
# before the script that calls it will work.
shell_command:
  play_jellyfin: '/config/scripts/play_jellyfin.sh "{{ title }}" "{{ target }}"'
  jellyfin_transport: '/config/scripts/jellyfin-transport.sh "{{ command }}" "{{ target }}"'
  # The data key is `command`, not `action` — `action` collides with HA's own
  # step keyword and the validator flags it.

# scripts.yaml — the tool the voice agent actually sees. The field
# descriptions ARE the interface: they tell the model how to fill the
# parameters, and in our measurements that is where such rules belong.
script:
  play_jellyfin:
    alias: Play Jellyfin
    description: >-
      Play a film or TV series from the Jellyfin library on a TV. Waits for
      verified playback and returns the result sentence - speak it as-is.
    fields:
      title:
        description: >-
          The film or show title, in Latin letters. If the person said a
          title in another script, spell it the way the library would
          (e.g. a romanised title), because the library is stored in Latin
          spelling.
        required: true
      target:
        description: >-
          Which TV to play on. appletv = the living room TV. chromecast =
          the bedroom TV. If the person named a device or a room, use that.
          If they named NEITHER, use the room they are speaking from: a
          request from the living room is appletv, a request from the
          bedroom is chromecast. Never default to one room for a request
          made in the other.
        required: true
    sequence:
      - service: shell_command.play_jellyfin
        data:
          title: "{{ title }}"
          target: "{{ target }}"
        response_variable: shell
      - stop: "Done"
        response_variable: shell
    mode: single