"""Build the I4 sql golden fixture: examples/ingest-golden-sql/fixture/portefolje.sqlite
+ ingested-at.txt.

Regenerable; the committed db BYTES need not be reproduced bit-for-bit — the golden test
compares the derived bundle (from db CONTENT via the manifest queries), not the db file.
Parameterized inserts keep the backslash/pipe escape-probe values exact (no SQL string-literal
surprises: 'c:\\temp' would be a tab if written as a Python literal). The data is chosen to
discriminate a typed §5 implementation from naive ones — SQL NULL, an integral REAL (4200.0),
non-integral REALs, and pipe/backslash text.
"""

from __future__ import annotations

import sqlite3
from pathlib import Path

GOLDEN = Path(__file__).resolve().parents[3] / "examples" / "ingest-golden-sql"


def main() -> None:
    fixture = GOLDEN / "fixture"
    fixture.mkdir(parents=True, exist_ok=True)
    db = fixture / "portefolje.sqlite"
    if db.exists():
        db.unlink()
    conn = sqlite3.connect(db)
    try:
        conn.execute("CREATE TABLE costs (id INTEGER, item TEXT, amount REAL, note TEXT)")
        conn.executemany(
            "INSERT INTO costs VALUES (?, ?, ?, ?)",
            [
                (1, "LED-armatur", 1200.5, "godkjent"),
                (2, "sensor", 89.9, None),  # NULL → empty cell (discriminator)
                (3, "kabel", 4200.0, "rest"),  # integral REAL → "4200.0", not "4200"
            ],
        )
        conn.execute("CREATE TABLE meta (k TEXT, v TEXT)")
        conn.executemany(
            "INSERT INTO meta VALUES (?, ?)",
            [
                ("owner", "anlegg | drift"),  # pipe → escaped \|
                ("path", "c:\\temp"),  # backslash → escaped \\
            ],
        )
        conn.commit()
    finally:
        conn.close()
    (GOLDEN / "ingested-at.txt").write_bytes(b"2026-07-04T12:00:00Z\n")
    print(f"built {db} ({db.stat().st_size} bytes) + ingested-at.txt")


if __name__ == "__main__":
    main()