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import json
import sqlite3
import uuid
from collections import defaultdict
from datetime import UTC, datetime
from pathlib import Path
from typing import Any
from .models import SolveAggregate
def utcnow() -> datetime:
return datetime.now(UTC)
def to_iso(dt: datetime | None) -> str | None:
if dt is None:
return None
return dt.isoformat()
class SessionStore:
def __init__(self, database_path: Path) -> None:
self.database_path = database_path
self.database_path.parent.mkdir(parents=True, exist_ok=True)
self._init_db()
def _connect(self) -> sqlite3.Connection:
conn = sqlite3.connect(self.database_path)
conn.row_factory = sqlite3.Row
return conn
def _init_db(self) -> None:
with self._connect() as conn:
conn.execute(
"""
CREATE TABLE IF NOT EXISTS sessions (
id TEXT PRIMARY KEY,
player_name_raw TEXT NOT NULL,
player_name_norm TEXT NOT NULL,
puzzle_type TEXT NOT NULL,
difficulty TEXT NOT NULL,
dataset_variant TEXT NOT NULL,
puzzle_filename TEXT NOT NULL,
args TEXT NOT NULL,
status TEXT NOT NULL,
assigned_at TEXT NOT NULL,
started_at TEXT,
submitted_at TEXT,
elapsed_ms INTEGER,
submission_count INTEGER NOT NULL DEFAULT 0,
solved INTEGER NOT NULL DEFAULT 0,
engine TEXT NOT NULL,
submitted_artifact TEXT,
verification_payload TEXT
)
"""
)
conn.execute(
"""
CREATE INDEX IF NOT EXISTS idx_sessions_lookup
ON sessions (player_name_norm, puzzle_type, difficulty, solved)
"""
)
conn.execute(
"""
CREATE TABLE IF NOT EXISTS submission_attempts (
id INTEGER PRIMARY KEY AUTOINCREMENT,
session_id TEXT NOT NULL,
attempt_n INTEGER NOT NULL,
submitted_at TEXT NOT NULL,
elapsed_ms INTEGER NOT NULL,
board_ascii TEXT NOT NULL,
solved INTEGER NOT NULL,
board_valid INTEGER NOT NULL,
verification_payload TEXT NOT NULL,
FOREIGN KEY (session_id) REFERENCES sessions (id)
)
"""
)
conn.execute(
"""
CREATE INDEX IF NOT EXISTS idx_attempts_session
ON submission_attempts (session_id, attempt_n)
"""
)
def create_session(
self,
*,
player_name_raw: str,
player_name_norm: str,
puzzle_type: str,
difficulty: str,
dataset_variant: str,
puzzle_filename: str,
args: str,
engine: str,
) -> dict[str, Any]:
session_id = str(uuid.uuid4())
assigned_at = utcnow()
record = {
"id": session_id,
"player_name_raw": player_name_raw,
"player_name_norm": player_name_norm,
"puzzle_type": puzzle_type,
"difficulty": difficulty,
"dataset_variant": dataset_variant,
"puzzle_filename": puzzle_filename,
"args": args,
"status": "assigned",
"assigned_at": to_iso(assigned_at),
"started_at": None,
"submitted_at": None,
"elapsed_ms": None,
"submission_count": 0,
"solved": 0,
"engine": engine,
"submitted_artifact": None,
"verification_payload": None,
}
with self._connect() as conn:
conn.execute(
"""
INSERT INTO sessions (
id, player_name_raw, player_name_norm, puzzle_type, difficulty,
dataset_variant, puzzle_filename, args, status, assigned_at,
started_at, submitted_at, elapsed_ms, submission_count, solved,
engine, submitted_artifact, verification_payload
) VALUES (
:id, :player_name_raw, :player_name_norm, :puzzle_type, :difficulty,
:dataset_variant, :puzzle_filename, :args, :status, :assigned_at,
:started_at, :submitted_at, :elapsed_ms, :submission_count, :solved,
:engine, :submitted_artifact, :verification_payload
)
""",
record,
)
return record
def get_session(self, session_id: str) -> dict[str, Any] | None:
with self._connect() as conn:
row = conn.execute("SELECT * FROM sessions WHERE id = ?", (session_id,)).fetchone()
return dict(row) if row else None
def get_solved_filenames(
self,
*,
player_name_norm: str,
puzzle_type: str,
difficulty: str,
) -> set[str]:
with self._connect() as conn:
rows = conn.execute(
"""
SELECT puzzle_filename
FROM sessions
WHERE player_name_norm = ?
AND puzzle_type = ?
AND difficulty = ?
AND solved = 1
""",
(player_name_norm, puzzle_type, difficulty),
).fetchall()
return {str(row["puzzle_filename"]) for row in rows}
def mark_ready(self, session_id: str) -> dict[str, Any]:
session = self.get_session(session_id)
if session is None:
raise KeyError(session_id)
started_at = session["started_at"] or to_iso(utcnow())
with self._connect() as conn:
conn.execute(
"UPDATE sessions SET started_at = ?, status = 'ready' WHERE id = ?",
(started_at, session_id),
)
updated = self.get_session(session_id)
assert updated is not None
return updated
def record_submission(
self,
*,
session_id: str,
solved: bool,
submitted_artifact: str,
verification_payload: dict[str, Any],
) -> dict[str, Any]:
session = self.get_session(session_id)
if session is None:
raise KeyError(session_id)
if not session["started_at"]:
raise ValueError("Session has not been marked ready.")
started_at = datetime.fromisoformat(str(session["started_at"]))
submitted_at = utcnow()
elapsed_ms = max(0, int((submitted_at - started_at).total_seconds() * 1000))
submission_count = int(session["submission_count"]) + 1
status = "solved" if solved else "attempted"
board_valid = bool(verification_payload.get("board_valid", False))
verification_json = json.dumps(verification_payload)
submitted_at_iso = to_iso(submitted_at)
with self._connect() as conn:
conn.execute(
"""
INSERT INTO submission_attempts (
session_id, attempt_n, submitted_at, elapsed_ms,
board_ascii, solved, board_valid, verification_payload
) VALUES (?, ?, ?, ?, ?, ?, ?, ?)
""",
(
session_id,
submission_count,
submitted_at_iso,
elapsed_ms,
submitted_artifact,
int(solved),
int(board_valid),
verification_json,
),
)
conn.execute(
"""
UPDATE sessions
SET submitted_at = ?, elapsed_ms = ?, submission_count = ?, solved = ?,
status = ?, submitted_artifact = ?, verification_payload = ?
WHERE id = ?
""",
(
submitted_at_iso,
elapsed_ms,
submission_count,
int(solved),
status,
submitted_artifact,
verification_json,
session_id,
),
)
updated = self.get_session(session_id)
assert updated is not None
return updated
def list_leaderboard(
self,
*,
puzzle_id: str,
include_test: bool = False,
) -> list[dict[str, Any]]:
params: list[Any] = [puzzle_id]
where = ["puzzle_filename = ?", "started_at IS NOT NULL"]
if not include_test:
where.append("LOWER(player_name_norm) != 'test'")
query = f"""
SELECT player_name_raw, elapsed_ms, submission_count, solved, started_at, submitted_at
FROM sessions
WHERE {' AND '.join(where)}
ORDER BY solved DESC,
CASE WHEN solved = 1 THEN elapsed_ms END ASC,
submission_count DESC,
started_at DESC
"""
with self._connect() as conn:
rows = conn.execute(query, params).fetchall()
return [dict(row) for row in rows]
def list_solves(self, filters: dict[str, str | None]) -> list[dict[str, Any]]:
clauses = ["submitted_at IS NOT NULL"]
params: list[str] = []
mappings = {
"player_name_norm": "player_name_norm = ?",
"puzzle_type": "puzzle_type = ?",
"difficulty": "difficulty = ?",
"status": "status = ?",
}
for key, clause in mappings.items():
value = filters.get(key)
if value:
clauses.append(clause)
params.append(value)
if filters.get("date_from"):
clauses.append("submitted_at >= ?")
params.append(str(filters["date_from"]))
if filters.get("date_to"):
clauses.append("submitted_at <= ?")
params.append(str(filters["date_to"]))
query = f"SELECT * FROM sessions WHERE {' AND '.join(clauses)} ORDER BY submitted_at DESC"
with self._connect() as conn:
rows = conn.execute(query, params).fetchall()
results: list[dict[str, Any]] = []
for row in rows:
item = dict(row)
if item.get("verification_payload"):
item["verification_payload"] = json.loads(str(item["verification_payload"]))
results.append(item)
return results
def aggregate_solves(self, filters: dict[str, str | None]) -> list[SolveAggregate]:
solved_filters = dict(filters)
if not solved_filters.get("status"):
solved_filters["status"] = "solved"
rows = self.list_solves(solved_filters)
grouped: dict[tuple[str, str, str], list[int]] = defaultdict(list)
for row in rows:
elapsed_ms = row.get("elapsed_ms")
if elapsed_ms is None:
continue
key = (
str(row["player_name_norm"]),
str(row["puzzle_type"]),
str(row["difficulty"]),
)
grouped[key].append(int(elapsed_ms))
aggregates: list[SolveAggregate] = []
for (player_name_norm, puzzle_type, difficulty), elapsed_values in grouped.items():
aggregates.append(
SolveAggregate.from_rows(
player_name_norm=player_name_norm,
puzzle_type=puzzle_type,
difficulty=difficulty,
elapsed_values=elapsed_values,
)
)
aggregates.sort(
key=lambda item: (item.player_name_norm, item.puzzle_type, item.difficulty)
)
return aggregates
|