from enum import Enum

# (str, Enum) like inbox/enums.py: the mixin keeps every member comparable to and
# usable as a plain string, which is what HTMLParser hands us and what the triage
# columns store.


class Block_Tags(str, Enum):
    """Tags that imply a line break in the rendered mail."""

    BR="br"
    P="p"
    DIV="div"
    LI="li"
    TR="tr"
    TABLE="table"
    BLOCKQUOTE="blockquote"
    SECTION="section"
    ARTICLE="article"
    HR="hr"
    H1="h1"
    H2="h2"
    H3="h3"
    H4="h4"
    H5="h5"
    H6="h6"

    @classmethod
    def has(cls, tag) -> bool:
        # _value2member_map_ keeps this O(1) with no exception overhead. `tag in cls`
        # would do the same on 3.12+ but raises TypeError on 3.11, and pyproject
        # still allows 3.11.
        return tag in cls._value2member_map_


class Drop_Tags(str, Enum):
    """Tags whose content is markup machinery, not readable text."""

    SCRIPT="script"
    STYLE="style"
    HEAD="head"
    TITLE="title"
    META="meta"
    LINK="link"

    @classmethod
    def has(cls, tag) -> bool:
        return tag in cls._value2member_map_


class Triage_Reason_Code(str, Enum):
    """Why the gate decided what it decided.

    Sent to the model as the schema's enum for `reason_code`, so these labels are
    part of the prompt contract — renaming one changes model behaviour.
    """

    JOB_APPLICATION="job_application"
    RECRUITER_OR_VENDOR="recruiter_or_vendor"
    NEWSLETTER_OR_MARKETING="newsletter_or_marketing"
    INTERNAL_OR_SCHEDULING="internal_or_scheduling"
    AUTOMATED_NOTIFICATION="automated_notification"
    OTHER="other"


class Triage_Status(str, Enum):
    """How the verdict was reached, as stored on inbox_message_triage.status."""

    CLASSIFIED="classified"
    LOW_CONFIDENCE="low_confidence"
    ERROR="error"