"""Briefing profile note: stores learned user preferences for the briefing assistant."""

import logging

from fabledassistant.services.notes import create_note, list_notes, update_note

logger = logging.getLogger(__name__)

PROFILE_TAG = "briefing-profile"
PROFILE_TITLE = "Briefing Profile"


async def _find_profile_note(user_id: int) -> dict | None:
    """Find the user's briefing profile note by tag."""
    notes, _total = await list_notes(user_id, tags=[PROFILE_TAG], limit=1)
    if not notes:
        return None
    note = notes[0]
    return {
        "id": note.id,
        "body": note.body or "",
        "title": note.title,
    }


async def get_profile_body(user_id: int) -> str:
    """Return the body of the briefing profile note, or '' if none exists."""
    note = await _find_profile_note(user_id)
    return note["body"] if note else ""


async def get_profile_note_id(user_id: int) -> int | None:
    note = await _find_profile_note(user_id)
    return note["id"] if note else None


async def ensure_profile_note(user_id: int) -> int:
    """
    Get or create the briefing profile note.
    Returns the note id.
    """
    note = await _find_profile_note(user_id)
    if note:
        return note["id"]
    created = await create_note(
        user_id=user_id,
        title=PROFILE_TITLE,
        body=(
            "# Briefing Profile\n\n"
            "This note is maintained by the briefing assistant. "
            "It stores your preferences, patterns, and work schedule.\n\n"
            "## Work Schedule\n\n"
            "Office days: (not yet configured)\n\n"
            "## Locations\n\n"
            "(configured via Settings → Briefing)\n\n"
            "## Preferences\n\n"
            "(the assistant will add observations here over time)\n"
        ),
        tags=[PROFILE_TAG],
    )
    return created.id


async def append_observations(user_id: int, observations: str) -> None:
    """
    Append the assistant's end-of-day observations to the profile note.
    Creates the note if it doesn't exist.
    """
    if not observations.strip():
        return
    note_id = await ensure_profile_note(user_id)
    note = await _find_profile_note(user_id)
    if not note:
        return
    current_body = note.get("body", "")
    from datetime import date
    date_str = date.today().isoformat()
    new_body = current_body.rstrip() + f"\n\n## Observations — {date_str}\n\n{observations.strip()}\n"
    await update_note(user_id, note_id, body=new_body)
    logger.info("Briefing profile updated for user %d", user_id)