"""
Google Keep notes via gkeepapi (unofficial).
Falls back to local Markdown files if Keep is unavailable.

NOTE: The official Google Keep API requires Google Workspace Enterprise.
For personal/standard accounts use gkeepapi or the Markdown fallback below.
"""
import os
from pathlib import Path

# ─── gkeepapi backend ──────────────────────────
try:
    import gkeepapi
    _keep = None

    def _init():
        global _keep
        if _keep is None:
            email = os.getenv("GOOGLE_KEEP_EMAIL")
            token = os.getenv("GOOGLE_KEEP_MASTER_TOKEN")
            if not email or not token:
                raise ValueError("Set GOOGLE_KEEP_EMAIL and GOOGLE_KEEP_MASTER_TOKEN in .env")
            _keep = gkeepapi.Keep()
            _keep.authenticate(email, token)
        return _keep

    def create_note(title: str, content: str) -> str:
        keep = _init()
        note = keep.createNote(title, content)
        note.pinned = True
        keep.sync()
        return note.id

    def get_all_notes() -> list[dict]:
        keep = _init()
        return [{'id': n.id, 'title': n.title, 'text': n.text} for n in keep.all()]

    def search_notes(query: str) -> list[dict]:
        keep = _init()
        return [{'id': n.id, 'title': n.title, 'text': n.text} for n in keep.find(query=query)]

    NOTES_BACKEND = "gkeepapi"

except ImportError:
    # ─── Markdown fallback ──────────────────────
    NOTES_DIR = Path.home() / "JARVIS_Notes"
    NOTES_DIR.mkdir(exist_ok=True)
    NOTES_BACKEND = "markdown"

    def create_note(title: str, content: str) -> str:
        safe_title = "".join(c for c in title if c.isalnum() or c in " _-").strip()
        path = NOTES_DIR / f"{safe_title}.md"
        path.write_text(f"# {title}\n\n{content}\n")
        return str(path)

    def get_all_notes() -> list[dict]:
        return [
            {'title': p.stem, 'text': p.read_text()}
            for p in NOTES_DIR.glob("*.md")
        ]

    def search_notes(query: str) -> list[dict]:
        results = []
        for p in NOTES_DIR.glob("*.md"):
            text = p.read_text()
            if query.lower() in text.lower():
                results.append({'title': p.stem, 'text': text})
        return results