#!/usr/bin/env python3
"""Load packages into a SQLite database with the tables of sql/doc.sql and sql/store.sql.

Non-normative tooling, standard library only.
Usage: python3 tools/load.py --sqlite lab.db PACKAGE [PACKAGE ...]
Files without tables of their own (assets, datasets, derived files) are copied by SHA-256 into an
asset store folder beside the database, named <database>.assets/.
"""

import argparse
import os
import sqlite3
import sys

ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, ROOT)

from tools.oracle import db  # noqa: E402


def main():
    ap = argparse.ArgumentParser(description=__doc__.splitlines()[0])
    ap.add_argument("--sqlite", required=True, help="the database file; created with the tables if new")
    ap.add_argument("packages", nargs="+", help="package folders")
    a = ap.parse_args()
    new = not os.path.exists(a.sqlite)
    conn = sqlite3.connect(a.sqlite)
    if new:
        db.create(conn, os.path.join(ROOT, "sql"))
    for p in a.packages:
        key = db.load(conn, p, a.sqlite + ".assets")
        n = conn.execute("SELECT COUNT(*) FROM nodes WHERE doc_key = ?", (key,)).fetchone()[0]
        print("%s: %d nodes" % (key, n))
    conn.commit()


if __name__ == "__main__":
    main()