signal-bot/signal_bot/wiring.py

# Copyright (c) 2026 Krzysztof Rudnicki. MIT licence.
"""Which commands exist: the one function that fills a CommandRegistry.

Split out of bot.py when the registry stopped being built once. ``build_bot``
still assembles the object graph; this is the part of it that reads data --
aliases.json, every album's manifests -- and so the part ``RegistryHolder``
runs again when that data changes. Everything with a lifetime longer than
one table (the HTTP client, the portrait cache, the store) is passed in, so
a rebuild reuses them rather than opening a second of each.
"""

from __future__ import annotations

from typing import TYPE_CHECKING

from signal_bot.analytics_command import register_analytics_command
from signal_bot.animals import load_aliases, register_animal_commands
from signal_bot.art_command import register_art_command
from signal_bot.decorators import cooldown
from signal_bot.help_command import register_help_command
from signal_bot.pack_command import register_pack_commands
from signal_bot.pack_holder import PackHolder
from signal_bot.pack_load import load as load_pack
from signal_bot.pack_random import register_random_command
from signal_bot.poem_command import register_poem_command
from signal_bot.popes_command import register_pope_command
from signal_bot.registry import CommandRegistry
from signal_bot.stats.commands import register_stats_commands
from signal_bot.suggest_command import register_suggest_command
from signal_bot.traps_command import register_trap_command

if TYPE_CHECKING:
    from pathlib import Path

    from signal_bot.config import Config
    from signal_bot.decorators import Decorator
    from signal_bot.http_client import ImageFetcher
    from signal_bot.portraits import PortraitCache

COOLDOWN_MESSAGE = "BEEP BOOP POCZEKAJ {seconds} {unit}."


def _register_album(registry: CommandRegistry, directory: Path, rate_limit: Decorator) -> None:
    """Wire the album's commands, all of them reading one mutable holder.

    !random takes the same cooldown as every other photo command. !add_photo
    is not wired: a photo posted to a group must not reach the album until
    somebody has approved it, and no approval queue exists yet.
    """
    aliases = load_aliases()
    holder = PackHolder(load_pack(directory))
    register_pack_commands(registry, holder, decorate=rate_limit)
    register_random_command(registry, holder, tuple(aliases["random"]), decorate=rate_limit)


def build_registry(
    config: Config, fetcher: ImageFetcher, portraits: PortraitCache
) -> CommandRegistry:
    """Read the data and register every command on a fresh table.

    Raises:
        ConfigError: An album no longer loads.
        DuplicateTriggerError: Two commands live in one group claim a word.
    """
    registry = CommandRegistry()
    rate_limit = cooldown(config.cooldown_seconds, COOLDOWN_MESSAGE)
    register_animal_commands(
        registry,
        fetcher,
        decorate=rate_limit,
        endpoints=config.image_api_urls,
    )
    register_pope_command(registry, portraits, decorate=rate_limit)
    register_trap_command(registry, fetcher, config.commons_api_url, decorate=rate_limit)
    register_art_command(registry, fetcher, config.commons_api_url, decorate=rate_limit)
    register_poem_command(registry, fetcher, config.poem_text_url, decorate=rate_limit)
    register_stats_commands(registry, decorate=rate_limit)
    # Reads the *command* history rather than the message history, and
    # reads the registry when it runs -- so the album's commands, which
    # are registered below this line, are still in the near-miss set.
    register_analytics_command(registry, decorate=rate_limit)
    # Rate-limited like every other command. The cost is real and accepted:
    # somebody told "napisz !zaproponuj ..." who then files two ideas in a
    # row is asked to wait for the second. The alternative is one person
    # being able to fill a table nothing prunes.
    register_suggest_command(registry, decorate=rate_limit)
    # Absent unless this installation has an album, and scoped to that
    # album's own groups when it does -- so on every other machine, and in
    # every other group, these commands simply do not exist.
    for album in config.photo_pack_dirs:
        _register_album(registry, album, rate_limit)
    # Last, so !pomoc trails the list it prints; it reads the registry
    # when it runs, so the order is presentation only.
    register_help_command(registry, decorate=rate_limit)
    return registry