saved_searches.py

import json
import os
from datetime import datetime
from typing import List, Dict

SAVE_PATH = "saved_searches.json"
MAX_SAVED = 25


def _load() -> List[Dict]:
    if not os.path.exists(SAVE_PATH):
        return []
    try:
        with open(SAVE_PATH, "r") as f:
            return json.load(f)
    except Exception:
        return []


def _save(data: List[Dict]):
    try:
        with open(SAVE_PATH, "w") as f:
            json.dump(data, f, indent=2)
    except Exception:
        pass


def save(query: str, extended: bool):
    """
    Persist a saved search (privacy-safe, local only).
    """
    if not query.strip():
        return

    data = _load()

    entry = {
        "query": query,
        "extended": bool(extended),
        "timestamp": datetime.utcnow().isoformat() + "Z",
    }

    data.insert(0, entry)
    data = data[:MAX_SAVED]

    _save(data)


def render() -> str:
    """
    Render saved searches as markdown for Gradio.
    """
    data = _load()

    if not data:
        return "_No saved searches yet._"

    lines = ["### 💾 Saved Searches\n"]

    for i, s in enumerate(data, start=1):
        mode = "Extended" if s["extended"] else "Standard"
        lines.append(
            f"{i}. **{s['query']}**  \n"
            f"   _Mode:_ {mode} · _Saved:_ {s['timestamp']}"
        )

    return "\n\n".join(lines)