#!/usr/bin/env python3
"""kb/get - read one leaf by id.

  bin/kb/get <id>            # metadata + snippet
  bin/kb/get <id> --body     # full text
"""
from __future__ import annotations

import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
sys.path.insert(0, str(ROOT / "tools"))

from kblib import open_readonly  # noqa: E402
from yamlout import to_yaml  # noqa: E402


def main(argv: list[str]) -> int:
    import argparse
    p = argparse.ArgumentParser(description="read one leaf by id")
    p.add_argument("id")
    p.add_argument("--body", action="store_true")
    a = p.parse_args(argv)

    db, conn = open_readonly()
    r = conn.execute(
        "MATCH (l:Leaf {id:$id}) RETURN l.id, l.text, l.root, l.confidence, l.source, l.type",
        parameters={"id": a.id},
    )
    rows = r.get_all()
    if not rows:
        print(f"kb/get: no leaf {a.id}", file=sys.stderr)
        conn.close()
        db.close()
        return 1
    row = rows[0]
    out = {"id": row[0], "root": row[2], "confidence": row[3], "source": row[4], "type": row[5]}
    if a.body:
        out["text"] = row[1]
    else:
        out["snippet"] = row[1][:280]
    print(to_yaml(out))
    conn.close()
    db.close()
    return 0


if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))