90cd0291a3
A calm second daily game, same philosophy as Daily Word — LLM proposes, code
disposes.
* LLM proposes a hopeful theme + ~8 words; code validates (alpha/length/dedup)
and PLACES every word in a date-seeded grid, so the puzzle is always solvable.
Curated fallback themes if the LLM is thin. Only placed words are returned;
the solution cells (placements) are never sent to the client.
* GET /api/puzzle/wordsearch → {theme, words, grid, size}. No answer to hide:
the grid and word list are meant to be seen — the play is finding them, which
the client validates by reading the selected line off the grid.
* WordSearchGame.svelte: pointer-drag selection snapped to the 8 straight
directions (mouse + touch), found-word highlighting, no-fail, no pressure
timer — time is recorded quietly and shown at the end with a personal best.
Spoiler-free share. localStorage progress (restores found cells + timer).
* Hub's Word Search card is now live with today's status; cycle pre-generates
both games with the LLM.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
273 lines
11 KiB
Python
273 lines
11 KiB
Python
"""Daily puzzles for the calm Play hub.
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Principle: **the LLM proposes, code disposes.** The LLM only contributes
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creative flavor (a one-line "why today's word matters"); the daily answer is
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picked deterministically by code from a pre-validated hopeful pool (every word
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is guaranteed to be in the guess dictionary, so it's always typeable). Puzzles
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are stored per (date, game, variant) so everyone gets the same one and shares
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are comparable. Generation never blocks on or trusts the LLM for correctness.
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"""
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from __future__ import annotations
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import hashlib
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import json
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import random
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import re
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import sqlite3
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from pathlib import Path
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_POOL = json.loads((Path(__file__).parent / "data" / "wordpool.json").read_text())
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# Daily Word: 5 letters / 6 guesses · Long Word: 6 letters / 7 guesses.
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WORD_VARIANTS = {"5": {"length": 5, "guesses": 6}, "6": {"length": 6, "guesses": 7}}
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def _seed(*parts: str) -> int:
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return int(hashlib.sha256(":".join(parts).encode()).hexdigest(), 16)
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def _recent_answers(conn: sqlite3.Connection, variant: str, limit: int) -> set[str]:
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rows = conn.execute(
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"SELECT payload_json FROM daily_puzzles WHERE game='word' AND variant=? "
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"ORDER BY puzzle_date DESC LIMIT ?",
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(variant, limit),
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).fetchall()
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out = set()
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for r in rows:
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try:
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out.add(json.loads(r["payload_json"])["answer"])
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except (ValueError, KeyError, TypeError):
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pass
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return out
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def _pick_answer(conn: sqlite3.Connection, date: str, variant: str) -> str:
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pool = _POOL.get(variant, [])
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recent = _recent_answers(conn, variant, max(1, len(pool) // 2))
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start = _seed(date, "word", variant) % len(pool)
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for i in range(len(pool)):
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cand = pool[(start + i) % len(pool)]
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if cand not in recent:
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return cand
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return pool[start] # pool fully cycled — allow a repeat rather than fail
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def _why(client, word: str) -> str | None:
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if client is None:
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return None
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try:
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msg = [
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{"role": "system", "content": "You write one short, warm, plain sentence (no preamble, no quotes) "
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"on why a given word is a hopeful or uplifting one to sit with."},
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{"role": "user", "content": f"Word: {word}"},
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]
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text = (client.chat_text(msg) or "").strip().strip('"').replace("\n", " ")
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return text[:200] or None
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except Exception: # noqa: BLE001 — flavor only; never block puzzle creation
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return None
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def generate_word_puzzle(conn: sqlite3.Connection, date: str, variant: str, client=None) -> dict:
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"""Ensure a Daily/Long Word puzzle exists for (date, variant). Idempotent.
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Code picks the answer; the LLM only adds the optional 'why' (with fallback)."""
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if variant not in WORD_VARIANTS:
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variant = "5"
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existing = conn.execute(
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"SELECT payload_json FROM daily_puzzles WHERE puzzle_date=? AND game='word' AND variant=?",
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(date, variant),
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).fetchone()
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if existing:
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return json.loads(existing["payload_json"])
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answer = _pick_answer(conn, date, variant)
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payload = {
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"answer": answer,
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"why": _why(client, answer),
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"length": WORD_VARIANTS[variant]["length"],
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"guesses": WORD_VARIANTS[variant]["guesses"],
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}
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conn.execute(
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"INSERT OR IGNORE INTO daily_puzzles (puzzle_date, game, variant, payload_json) VALUES (?, 'word', ?, ?)",
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(date, variant, json.dumps(payload)),
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)
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conn.commit()
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row = conn.execute(
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"SELECT payload_json FROM daily_puzzles WHERE puzzle_date=? AND game='word' AND variant=?",
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(date, variant),
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).fetchone()
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return json.loads(row["payload_json"])
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def word_puzzle_response(conn: sqlite3.Connection, date: str, variant: str) -> dict:
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"""Public puzzle shape — deliberately holds NO answer. Guesses are adjudicated
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server-side (see adjudicate_word_guess), so the day's word never sits in the
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network response for a curious user to read."""
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p = generate_word_puzzle(conn, date, variant) # create on demand (no LLM) if missing
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return {
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"game": "word",
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"variant": variant,
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"date": date,
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"length": p["length"],
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"guesses": p["guesses"],
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}
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def _color(guess: str, answer: str) -> list[str]:
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"""Two-pass Wordle colouring: greens first, then presents limited by counts."""
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res = ["absent"] * len(answer)
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counts: dict[str, int] = {}
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for ch in answer:
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counts[ch] = counts.get(ch, 0) + 1
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for i, ch in enumerate(guess):
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if i < len(answer) and ch == answer[i]:
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res[i] = "correct"; counts[ch] -= 1
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for i, ch in enumerate(guess):
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if res[i] == "correct":
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continue
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if counts.get(ch, 0) > 0:
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res[i] = "present"; counts[ch] -= 1
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return res
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def adjudicate_word_guess(conn: sqlite3.Connection, date: str, variant: str, guess: str, n: int) -> dict:
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"""Colour a guess against the day's answer server-side. The answer (and 'why')
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are revealed ONLY once solved or the guesses are spent — never up front."""
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if variant not in WORD_VARIANTS:
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variant = "5"
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p = generate_word_puzzle(conn, date, variant)
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length, maxg, answer = p["length"], p["guesses"], p["answer"]
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guess = (guess or "").strip().lower()
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if len(guess) != length or not guess.isalpha():
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return {"error": "bad guess"}
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solved = guess == answer
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reveal = solved or n >= maxg
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return {
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"colors": _color(guess, answer),
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"solved": solved,
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"answer": answer if reveal else None,
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"why": p.get("why") if reveal else None,
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}
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# ---------------------------------------------------------------------------
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# Word Search — LLM proposes a theme + words, code validates and PLACES them in
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# the grid (so it's always solvable). No answer to hide: the grid and word list
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# are inherently visible; the play is finding them.
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# ---------------------------------------------------------------------------
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WORDSEARCH_SIZE = 10
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WORDSEARCH_COUNT = 8
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_DIRS = [(-1, -1), (-1, 0), (-1, 1), (0, -1), (0, 1), (1, -1), (1, 0), (1, 1)]
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# Curated fallbacks (all uppercase alpha, 4–8 letters) used if the LLM is thin.
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_WS_FALLBACKS = [
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("Kindness", ["KIND", "CARE", "GIVE", "SHARE", "GENTLE", "WARMTH", "THANKS", "FRIEND"]),
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("In the garden", ["BLOOM", "PETAL", "ROOTS", "LEAF", "GARDEN", "FLOWER", "SUNNY", "SEEDS"]),
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("Quiet calm", ["PEACE", "QUIET", "STILL", "SERENE", "REST", "SOOTHE", "GENTLE", "BREATHE"]),
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("Bright skies", ["SUNNY", "CLOUD", "BREEZE", "LIGHT", "SHINE", "RAINBOW", "WARMTH", "DAWN"]),
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("Small joys", ["SMILE", "LAUGH", "CHEER", "HAPPY", "MERRY", "DANCE", "DELIGHT", "GLOW"]),
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]
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def _ws_propose(client) -> tuple[str, list[str]] | None:
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"""LLM proposes a theme + words; code disposes (alpha / length / dedup)."""
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if client is None:
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return None
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try:
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msg = [
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{"role": "system", "content": "You set up a calm, hopeful word search. Reply exactly as two lines:\n"
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"THEME: <2-4 word theme>\nWORDS: W1, W2, W3, W4, W5, W6, W7, W8\n"
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"Each word a single real word, 4-8 letters, UPPERCASE, related to the theme, no phrases."},
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{"role": "user", "content": "Give me one gentle, uplifting theme."},
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]
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text = client.chat_text(msg) or ""
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theme, words = None, []
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for line in text.splitlines():
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s = line.strip()
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if s.upper().startswith("THEME:"):
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theme = s.split(":", 1)[1].strip()[:40]
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elif s.upper().startswith("WORDS:"):
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words = [w.strip().upper() for w in re.split(r"[,\s]+", s.split(":", 1)[1]) if w.strip()]
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words = [w for w in dict.fromkeys(words) if w.isalpha() and 4 <= len(w) <= 8]
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if theme and len(words) >= 6:
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return theme, words[:WORDSEARCH_COUNT]
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except Exception: # noqa: BLE001 — fall back to a curated theme
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pass
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return None
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def generate_wordsearch_puzzle(conn: sqlite3.Connection, date: str, client=None) -> dict:
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"""Ensure today's word search exists. Idempotent. Code places every word, so
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the puzzle is guaranteed solvable; only placed words are returned."""
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existing = conn.execute(
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"SELECT payload_json FROM daily_puzzles WHERE puzzle_date=? AND game='wordsearch' AND variant=''", (date,)
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).fetchone()
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if existing:
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return json.loads(existing["payload_json"])
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rng = random.Random(_seed(date, "wordsearch"))
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proposed = _ws_propose(client)
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theme, words = proposed if proposed else _WS_FALLBACKS[rng.randrange(len(_WS_FALLBACKS))]
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words = [w.upper() for w in words]
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size = WORDSEARCH_SIZE
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grid: list[list[str | None]] = [[None] * size for _ in range(size)]
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placed = []
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for word in sorted(words, key=len, reverse=True):
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for _ in range(400):
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dr, dc = rng.choice(_DIRS)
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r0, c0 = rng.randrange(size), rng.randrange(size)
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cells = [(r0 + dr * i, c0 + dc * i) for i in range(len(word))]
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if any(not (0 <= r < size and 0 <= c < size) for r, c in cells):
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continue
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if all(grid[r][c] in (None, word[i]) for i, (r, c) in enumerate(cells)):
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for i, (r, c) in enumerate(cells):
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grid[r][c] = word[i]
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placed.append({"word": word, "cells": cells})
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break
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for r in range(size):
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for c in range(size):
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if grid[r][c] is None:
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grid[r][c] = chr(65 + rng.randrange(26))
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payload = {
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"theme": theme,
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"words": sorted((p["word"] for p in placed), key=len, reverse=True),
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"grid": ["".join(row) for row in grid],
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"size": size,
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"placements": placed, # stored, not sent to the client
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}
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conn.execute(
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"INSERT OR IGNORE INTO daily_puzzles (puzzle_date, game, variant, payload_json) VALUES (?, 'wordsearch', '', ?)",
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(date, json.dumps(payload)),
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)
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conn.commit()
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row = conn.execute(
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"SELECT payload_json FROM daily_puzzles WHERE puzzle_date=? AND game='wordsearch' AND variant=''", (date,)
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).fetchone()
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return json.loads(row["payload_json"])
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def wordsearch_response(conn: sqlite3.Connection, date: str) -> dict:
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"""Public shape: theme + word list + grid. The grid is meant to be seen — the
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play is finding the words — so there's nothing to hide here (no placements)."""
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p = generate_wordsearch_puzzle(conn, date) # on-demand (curated fallback) if missing
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return {"game": "wordsearch", "date": date, "theme": p["theme"],
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"words": p["words"], "grid": p["grid"], "size": p["size"]}
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def generate_daily_puzzles(conn: sqlite3.Connection, date: str, client=None) -> int:
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"""Cycle hook: pre-generate today's puzzles (word + word search) with the LLM."""
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made = 0
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for variant in WORD_VARIANTS:
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before = conn.execute(
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"SELECT 1 FROM daily_puzzles WHERE puzzle_date=? AND game='word' AND variant=?", (date, variant)
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).fetchone()
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if not before:
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generate_word_puzzle(conn, date, variant, client=client)
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made += 1
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if not conn.execute(
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"SELECT 1 FROM daily_puzzles WHERE puzzle_date=? AND game='wordsearch' AND variant=''", (date,)
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).fetchone():
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generate_wordsearch_puzzle(conn, date, client=client)
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made += 1
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return made
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