"""Seed the poker tracker from Brian's curated .md session logs.

Each `# YYYY-MM-DD — ...` block in the log is LLM-extracted into structured meta
+ hands + villains, then written as a historical session (real date, money, net),
with the original markdown stored as that session's recap. Run dry first to eyeball
the extraction, then commit.

    uv run python -m lyra.backfill                 # dry-run ALL sessions (no writes)
    uv run python -m lyra.backfill --dry 2         # dry-run first 2
    uv run python -m lyra.backfill --commit        # seed all (writes to DB)
    uv run python -m lyra.backfill --commit --reset  # wipe poker data first, then seed
"""
from __future__ import annotations

import json
import re
import sys

from lyra import llm, poker

LOG_PATH = "import/pokerlog_asof6-16-26.md"

_EXTRACT_PROMPT = """Extract a structured record from this single poker session log. \
Output ONLY JSON, no prose, no code fences:
{
  "date": "YYYY-MM-DD",
  "venue": "<casino>", "game": "NLH|PLO|Stud8|Mixed", "stakes": "<e.g. 1/3 or null>",
  "format": "cash" | "tournament",
  "buy_in_total": <number>, "cash_out": <number|null>, "net": <number|null>,
  "hours": <number|null>, "mood": "<short mental-game note|null>",
  "hands": [
    // each KEY hand, in the canonical hand-history schema:
    {"hero_pos": "..", "hero_cards": [".."], "players": [{"pos":"..","name":<str|null>,"cards":[..]|null}],
     "actions": [{"street":"..","pos":"..","action":"..","amount":<num|null>}, {"street":"flop","board":[".."]}],
     "board": [".."], "result": {"hero_net": <num|null>, "summary": ".."},
     "tag": "well_played|leak|cooler|confidence|notable|null", "lesson": "<takeaway|null>"}
  ],
  "villains": [
    {"name": "<handle/nickname>", "description": "<physical/identifying|null>",
     "tendencies": "<how they play>", "adjustment": "<how to exploit>", "category": "feeder|risky|reg|unknown"}
  ]
}

Card rule: cards are rank+suit using SUIT LETTERS ONLY (s h d c) — never unicode symbols \
(no ♥♦♣♠). Use a card's real suit ONLY if the log explicitly states it for THAT card; \
otherwise the suit is 'x' (e.g. "Jx","Tx","4x") — never a bare rank, never an invented suit. \
A suit shown on the board does NOT apply to a hole card. Unknown whole card = "x".
Tournaments: buy_in_total = entry + rebuys; cash_out = winnings (0 if busted, so a bust nets -buy_in).
Only include villains with a real handle/nickname (skip anonymous descriptors like "the drunk guy", \
"final-hand caller"). Only include hands actually described. net = cash_out - buy_in_total. Be faithful to the log."""


def split_sessions(md: str) -> list[str]:
    """Split the log into individual session blocks on '# YYYY-MM-DD' headers."""
    parts = re.split(r"(?=^# \d{4}-\d{2}-\d{2})", md, flags=re.M)
    return [p.strip() for p in parts if re.match(r"^# \d{4}-\d{2}-\d{2}", p.strip())]


def _safe_json(s: str) -> dict | None:
    try:
        return json.loads(s)
    except (json.JSONDecodeError, TypeError):
        m = re.search(r"\{.*\}", s or "", re.S)
        if m:
            try:
                return json.loads(m.group())
            except json.JSONDecodeError:
                return None
    return None


def extract(block: str, backend: str = "cloud") -> dict | None:
    return _safe_json(llm.complete(
        [{"role": "system", "content": _EXTRACT_PROMPT}, {"role": "user", "content": block}],
        backend=backend,
    ))


_real_handle = poker._real_handle  # one canonical filter (lives in poker.py)


def seed(ex: dict, block: str, with_hands: bool = False) -> dict:
    """Write one extracted session + villains (+ hands only if asked) to the DB.

    Hands are OFF by default: reconstructing a clean replayable hand from old
    narrative prose is too lossy (mangled cards/positions). Sessions, their
    original writeups (recap), and villain dossiers seed cleanly; hands are best
    captured fresh from Brian's own shorthand going forward.
    """
    sid = poker.import_session(
        date=ex.get("date") or "2026-01-01", venue=ex.get("venue"), game=ex.get("game") or "NLH",
        stakes=ex.get("stakes"), fmt=ex.get("format") or "cash",
        buy_in_total=ex.get("buy_in_total") or 0, cash_out=ex.get("cash_out"),
        hours=ex.get("hours"), mood=ex.get("mood"), recap_md=block,
    )
    n_hands = 0
    if with_hands:
        for h in ex.get("hands") or []:
            hid = poker.store_hand_history(h, session_id=sid)
            poker.link_hand_players(hid, h, session_id=sid)
            n_hands += 1
    n_villains = 0
    for v in ex.get("villains") or []:
        if _real_handle(v.get("name")):
            poker.upsert_player(name=v["name"], venue=ex.get("venue"),
                                description=v.get("description"), tendencies=v.get("tendencies"),
                                adjustment=v.get("adjustment"), category=v.get("category"))
            n_villains += 1
    return {"session_id": sid, "date": ex.get("date"), "venue": ex.get("venue"),
            "net": ex.get("net"), "hands": n_hands, "villains": n_villains}


def main() -> int:
    args = sys.argv[1:]
    commit = "--commit" in args
    reset = "--reset" in args
    with_hands = "--with-hands" in args  # off by default — prose->hand replay is too lossy
    limit = None
    for i, a in enumerate(args):
        if a == "--dry" and i + 1 < len(args) and args[i + 1].isdigit():
            limit = int(args[i + 1])

    blocks = split_sessions(open(LOG_PATH, encoding="utf-8").read())
    if limit:
        blocks = blocks[:limit]
    print(f"{len(blocks)} session block(s). mode={'COMMIT' if commit else 'DRY-RUN'}")

    if commit and reset:
        wiped = poker.clear_all()
        print(f"reset: wiped {wiped}")

    for b in blocks:
        ex = extract(b)
        if not ex:
            print(f"  ! could not parse a block: {b[:60]!r}")
            continue
        if commit:
            print("  seeded:", seed(ex, b, with_hands=with_hands))
        else:
            print(f"\n=== {ex.get('date')} — {ex.get('venue')} {ex.get('stakes')} "
                  f"({ex.get('format')}) net {ex.get('net')} ===")
            kept = [v.get("name") for v in (ex.get("villains") or []) if _real_handle(v.get("name"))]
            print(f"  hands: {len(ex.get('hands') or [])} | villains kept: {kept}")
            for h in (ex.get("hands") or [])[:3]:
                print(f"    - {h.get('hero_pos')} {h.get('hero_cards')} "
                      f"net {(h.get('result') or {}).get('hero_net')} [{h.get('tag')}]")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())