"""Constants for the Nvidia Shield integration."""

# Re-export shared Media DAG constants
from .ha_adb_common.const import (  # noqa: F401
    ATTR_MEDIA_DAG_JELLYFIN_ENTITY,
    ATTR_MEDIA_DAG_NOW_PLAYING,
    ATTR_MEDIA_DAG_RECEIVER_ENTITY,
    ATTR_MEDIA_DAG_RECEIVER_INPUT,
    ATTR_MEDIA_DAG_ROLE,
    ATTR_MEDIA_DAG_RUNNING_APPS,
)

DOMAIN = "nvidia_shield"

# t41: the INTEGRATION's address field — one Shield IP for the whole stack
# (protocol + ADB). The two keys below it are LEGACY: a YAML seed may still
# carry them and the v3 entry migration maps them onto CONF_HOST, but no
# runtime code reads them.
CONF_HOST = "host"
CONF_ADB_HOST = "adb_host"
CONF_PROTOCOL_HOST = "protocol_host"

# t41 legacy: dropped from entries by the v3 migration (the androidtv entity
# path it configured is gone), never read at runtime.
CONF_ANDROIDTV_ENTITY = "androidtv_entity"
CONF_JELLYFIN_ENTITY = "jellyfin_entity"
CONF_RECEIVER_ENTITY = "receiver_entity"
CONF_RECEIVER_INPUT = "receiver_input"
CONF_POWER_ENTITY = "power_entity"
CONF_ADB_ENABLED = "adb_enabled"
CONF_ADB_STORE_APP_INFO = "adb_store_app_info"
CONF_ADB_PORT = "adb_port"

# Remote-protocol transport (androidtvremote2) — Phase 2
CONF_PROTOCOL_ENABLED = "protocol_enabled"
CONF_PAIRING_CODE = "pairing_code"
# t33 F-B: the "continue without pairing" escape offered on BOTH pairing
# steps — the entry still finishes (passive mode) instead of stranding the
# user on a form with no way forward.
CONF_SKIP_PAIRING = "skip_pairing"
DEFAULT_PROTOCOL_API_PORT = 6466
DEFAULT_PROTOCOL_PAIR_PORT = 6467

ADB_POLL_INTERVAL = 10  # seconds
ADB_RETRY_INTERVAL = 300  # seconds before retrying a failed ADB connection
DEFAULT_ADB_PORT = 5555

# Persistent-connection manager timing (Phase 1, docs/MVP_PLAN.md §2):
# watchdog reconnects with exponential backoff + jitter; ADB-derived store
# fields expire (B5) instead of clinging to stale values.
ADB_RECONNECT_BACKOFF_START = 5   # seconds before the first reconnect retry
ADB_RECONNECT_BACKOFF_CAP = 300   # seconds; backoff never sleeps longer
ADB_RECONNECT_JITTER = 0.25       # ±25 % randomization against reconnect storms
STATE_STORE_TTL = 60              # ADB-sourced fields older than this are stale

DEFAULT_NAME = "Nvidia Shield"

# Config-entry schema version (t41): v1 → v2 added the remote-protocol fields,
# v2 → v3 collapsed the two address fields into CONF_HOST and dropped the
# androidtv-entity key. One constant so the flow and the migration cannot drift.
ENTRY_VERSION = 3

# Emotiva DAG attribute we read to get available inputs
ATTR_MEDIA_DAG_INPUT_MAP = "media_dag_input_map"

# Known Jellyfin app package IDs (used to route Jellyfin-family clients
# — including Wholphin, a Jellyfin client — to the rich-metadata path).
JELLYFIN_APP_IDS = [
    "org.jellyfin.androidtv",
    "org.jellyfin.mobile",
    "com.github.damontecres.wholphin",
]

# Remote-protocol key names (RemoteKeyCode enum in remotemessage.proto).
# HA service kind → protocol keycode string.
PROTOCOL_MEDIA_KEYS = {
    "media_play": "KEYCODE_MEDIA_PLAY",
    "media_pause": "KEYCODE_MEDIA_PAUSE",
    "media_stop": "KEYCODE_MEDIA_STOP",
    "media_next_track": "KEYCODE_MEDIA_NEXT",
    "media_previous_track": "KEYCODE_MEDIA_PREVIOUS",
}
PROTOCOL_VOLUME_KEYS = {
    "volume_up": "KEYCODE_VOLUME_UP",
    "volume_down": "KEYCODE_VOLUME_DOWN",
    "volume_mute": "KEYCODE_VOLUME_MUTE",
}
PROTOCOL_REMOTE_KEYS = {
    **PROTOCOL_VOLUME_KEYS,
    "play": "KEYCODE_MEDIA_PLAY",
    "pause": "KEYCODE_MEDIA_PAUSE",
    "stop": "KEYCODE_MEDIA_STOP",
    "up": "KEYCODE_DPAD_UP",
    "down": "KEYCODE_DPAD_DOWN",
    "left": "KEYCODE_DPAD_LEFT",
    "right": "KEYCODE_DPAD_RIGHT",
    "enter": "KEYCODE_DPAD_CENTER",
    "home": "KEYCODE_HOME",
    "back": "KEYCODE_BACK",
    "menu": "KEYCODE_MENU",
    "search": "KEYCODE_SEARCH",
    "power": "KEYCODE_POWER",
    "channel_up": "KEYCODE_CHANNEL_UP",
    "channel_down": "KEYCODE_CHANNEL_DOWN",
}

# §7 channel selection: digits only, ~0.1 s apart, no ENTER by default
# (replicates HA core androidtv_remote's verified behavior).
# Zeroconf discovery (Phase 4): the Android TV remote service type.
ZEROCONF_SERVICE_TYPE = "_androidtvremote2._tcp.local."

# P4-1 apps name/icon map (options flow editor): package → friendly name,
# consumed by app_name after the androidtv-entity and protocol-push tiers.
CONF_APP_NAME_MAP = "app_name_map"

# P5-2: optional icon column (package|icon) — package → icon URL, feeding
# entity_picture when no Jellyfin session picture is live.
CONF_APP_ICON_MAP = "app_icon_map"

# P5-1: device manifest label cache TTL (long — labels change with app
# updates, not per poll).
APP_LABEL_TTL = 24 * 3600

# t57 UNIT 0: exit marker appended to the label dump so a FAILED fetch can be
# told from a package that genuinely has no label. ``adb shell`` output ending
# in this marker means the command ran; an empty answer still carries it, and
# a transport that never delivered output does not. The value is arbitrary but
# unlikely to collide with a manifest line.
APP_LABEL_EXIT_MARKER = "__NSH_EXIT:"

# P4-2a adb_command service: rawADB shell on this entry — OFF by default
# (same security posture as the core androidtv integration).
CONF_ADB_COMMAND_ENABLED = "adb_command_enabled"
SERVICE_ADB_COMMAND = "adb_command"

# P5-3 (C-STREAM): live events push — the streaming_shell logcat consumer
# (foreground AppState fast-path). Default OFF; the user flips it on and
# reports stability on their device.
CONF_LOGCAT_EVENTS = "logcat_events"

# P5-3: duplicate START for the same package inside this window is not
# re-stamped (repeat suppression).
LOGCAT_SUPPRESS_WINDOW = 15.0

# P4-2c BrowseMedia app directory fallback when the options map is empty
# (curated; the packages are the plan's reference apps).
DEFAULT_APP_DIRECTORY = {
    "ar.tvplayer.tv": "TiviMate",
    "com.github.damontecres.wholphin": "Wholphin",
    "com.netflix.ninja": "Netflix",
    "com.google.android.youtube.tv": "YouTube",
}

CHANNEL_DIGIT_DELAY = 0.1
CONF_CHANNEL_DIGIT_DELAY = "channel_digit_delay"
CONF_CHANNEL_SEND_ENTER = "channel_send_enter"

# Verified on-device package names (docs/RESEARCH_SHIELD.md): TiviMate does
# not publish a MediaSession on Shield Android 11 — it is the headline
# Phase-3 fallback app.
TIVIMATE_PACKAGE = "ar.tvplayer.tv"

# Packages to ignore when parsing foreground/audio-playback identities
SYSTEM_MEDIA_PACKAGES = [
    "com.google.android.apps.mediashell",  # Chromecast receiver process
    "com.android.systemui",
    "com.android.tv.settings",
    "com.nvidia.diagtools",
]


# t44: per-command script overrides — the escape hatch for hardware this
# integration deliberately does not drive itself (a speaker switch that owns the
# volume, an AVR input, a mute that has to hit two devices). One script per
# command: when one is configured, that command calls the script INSTEAD of the
# native protocol/ADB path, and with none configured nothing changes at all.
CONF_COMMAND_SCRIPTS = "command_scripts"
SCRIPT_COMMANDS = (
    "turn_on",
    "turn_off",
    "volume_up",
    "volume_down",
    "volume_set",
    "volume_mute",
    "select_source",
)
#: Options-flow field name per command: ``script_turn_on``, ``script_volume_set``…
SCRIPT_FIELD_PREFIX = "script_"
#: Variables a command hands its script (HA script variables). volume_mute passes
#: whether it is muting or unmuting — a script cannot tell those apart otherwise.
SCRIPT_VAR_LEVEL = "level"
SCRIPT_VAR_APP_NAME = "app_name"
SCRIPT_VAR_MUTED = "is_volume_muted"


def command_scripts(options) -> dict[str, str]:
    """The script configured per command, normalized (t44).

    The ONE place the stored option's shape is read: the options flow, the media
    player and the remote entity all go through it. Options round-trip through HA
    storage and can be hand-edited, so a value that is not a non-empty string for a
    known command is dropped rather than handed to the service layer.
    """
    raw = (options or {}).get(CONF_COMMAND_SCRIPTS)
    if not isinstance(raw, dict):
        return {}
    scripts: dict[str, str] = {}
    for command in SCRIPT_COMMANDS:
        script = raw.get(command)
        if isinstance(script, str) and script.strip():
            scripts[command] = script.strip()
    return scripts


# t47: ONE optional script for the remote entity's send_command. It replaces the
# whole key path (repeats, hold, delays included) rather than per-key overrides,
# because a remote command is a sequence: an IR bridge, a macro or a second device
# needs the call, not individual keys.
CONF_REMOTE_COMMAND_SCRIPT = "remote_command_script"
#: Variables remote.send_command hands its script — the names are the service's own
#: parameter names, and they are documented in the README and pinned in tests.
SCRIPT_VAR_COMMAND = "command"
SCRIPT_VAR_NUM_REPEATS = "num_repeats"
SCRIPT_VAR_DELAY_SECS = "delay_secs"
SCRIPT_VAR_HOLD_SECS = "hold_secs"


def remote_command_script(options) -> str | None:
    """The script configured for remote.send_command, or None (t47).

    Same defensive read as ``command_scripts``: options round-trip through HA
    storage and can be hand-edited, so anything that is not a non-empty string is
    "not configured" rather than a service call to nowhere.
    """
    script = (options or {}).get(CONF_REMOTE_COMMAND_SCRIPT)
    if isinstance(script, str) and script.strip():
        return script.strip()
    return None