SLACK_TEXT_LIMIT = 40000
SLACK_MEDIA_MAX_MB = 50
SLACK_STREAM_BUFFER_CHARS = 256
SLACK_PREVIEW_THROTTLE_MS = 1000
SLACK_PREVIEW_MAX_CHARS = 40000

SLACK_API_BASE = "https://slack.com/api"

SLACK_DEDUPE_TTL_SECONDS = 60
SLACK_DEDUPE_MAX_SIZE = 10000

SLACK_BOT_TOKEN_PREFIX = "xoxb-"
SLACK_APP_TOKEN_PREFIX = "xapp-"
SLACK_USER_TOKEN_PREFIX = "xoxp-"

SLACK_APP_TOKEN_PATTERN = r"^xapp-\d-[a-z0-9]+-"

SLACK_USER_ID_PATTERN = r"^U[A-Z0-9]{7,12}$"
SLACK_BOT_ID_PATTERN = r"^B[A-Z0-9]{7,12}$"
SLACK_CHANNEL_ID_PATTERN = r"^C[A-Z0-9]{7,12}$"
SLACK_PRIVATE_CHANNEL_ID_PATTERN = r"^G[A-Z0-9]{7,12}$"
SLACK_DM_ID_PATTERN = r"^D[A-Z0-9]{7,12}$"
SLACK_WORKSPACE_ID_PATTERN = r"^T[A-Z0-9]{7,12}$"

SLACK_MENTION_PATTERN = r"<@([A-Z0-9]+)>"

SLACK_REQUIRED_BOT_SCOPES = [
    "chat:write",
    "channels:history",
    "groups:history",
    "im:history",
    "mpim:history",
    "app_mentions:read",
    "files:write",
    "files:read",
    "users:read",
]

SLACK_RECOMMENDED_BOT_SCOPES = [
    "chat:write.customize",
    "reactions:write",
    "reactions:read",
    "channels:read",
    "groups:read",
    "team:read",
]

SLACK_APP_TOKEN_SCOPE = "connections:write"

SLACK_BENIGN_FINALIZE_CODES = frozenset(
    [
        "user_not_found",
        "team_not_found",
        "missing_recipient_user_id",
    ]
)

SLACK_MESSAGE_SUBTYPES_SYSTEM = frozenset(
    [
        "channel_join",
        "channel_leave",
        "channel_topic",
        "channel_purpose",
        "channel_name",
        "channel_archive",
        "channel_unarchive",
        "group_join",
        "group_leave",
        "group_topic",
        "group_purpose",
        "group_name",
        "group_archive",
        "group_unarchive",
    ]
)

SLACK_MAX_BUTTONS = 5
SLACK_MAX_SELECT_OPTIONS = 100

SLACK_RETRY_MAX_ATTEMPTS = 3
SLACK_RETRY_BASE_DELAY = 1.0
SLACK_RETRY_MAX_DELAY = 30.0

SLACK_NATIVE_COMMAND_HELP = "help"
SLACK_NATIVE_COMMAND_RESET = "reset"

SLACK_AGENT_PROMPT_RULES = [
    "Use Slack mrkdwn, not standard Markdown.",
    "Bold uses *single asterisks*.",
    "Italic uses _underscores_.",
    "Links use <url|label> format.",
    "Code blocks use triple backticks without a language identifier.",
    "Do not use markdown headings or pipe tables.",
]