# retoor <retoor@molodetz.nl>
from molodetz.database.core import db, generate_uid, now_iso


def enqueue_backup(target, requested_by):
    row = {
        "uid": generate_uid(),
        "target": target,
        "status": "pending",
        "requested_by": requested_by,
        "directory": None,
        "stored_name": None,
        "size_bytes": None,
        "error": None,
        "created_at": now_iso(),
        "finished_at": None,
    }
    db["backups"].insert(row)
    return row


def pending_backups():
    if "backups" not in db.tables:
        return []
    return list(db["backups"].find(status="pending", order_by=["uid"]))


def list_backups(limit=100):
    if "backups" not in db.tables:
        return []
    return list(db["backups"].find(order_by=["-created_at"], _limit=limit))


def get_backup(uid):
    if "backups" not in db.tables:
        return None
    return db["backups"].find_one(uid=uid)


def update_backup(uid, **fields):
    fields["uid"] = uid
    db["backups"].update(fields, ["uid"])


def delete_backup_rows(uids):
    for uid in uids:
        db["backups"].delete(uid=uid)