// This file is part of Moonfire NVR, a security camera network video recorder.
// Copyright (C) 2020 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
// SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception.

//! Subcommand to check the database and sample file dir for errors.

use db::check;
use failure::Error;
use std::path::PathBuf;
use structopt::StructOpt;

#[derive(StructOpt)]
pub struct Args {
    /// Directory holding the SQLite3 index database.
    #[structopt(
        long,
        default_value = "/var/lib/moonfire-nvr/db",
        value_name = "path",
        parse(from_os_str)
    )]
    db_dir: PathBuf,

    /// Compare sample file lengths on disk to the database.
    #[structopt(long)]
    compare_lens: bool,

    /// Trash sample files without matching recording rows in the database.
    /// This addresses "Missing ... row" errors.
    ///
    /// The ids are added to the "garbage" table to indicate the files need to
    /// be deleted. Garbage is collected on normal startup.
    #[structopt(long)]
    trash_orphan_sample_files: bool,

    /// Delete recording rows in the database without matching sample files.
    /// This addresses "Recording ... missing file" errors.
    #[structopt(long)]
    delete_orphan_rows: bool,

    /// Trash recordings when their database rows appear corrupt.
    /// This addresses "bad video_index" errors.
    ///
    /// The ids are added to the "garbage" table to indicate their files need to
    /// be deleted. Garbage is collected on normal startup.
    #[structopt(long)]
    trash_corrupt_rows: bool,
}

pub fn run(args: &Args) -> Result<i32, Error> {
    let (_db_dir, mut conn) = super::open_conn(&args.db_dir, super::OpenMode::ReadWrite)?;
    check::run(
        &mut conn,
        &check::Options {
            compare_lens: args.compare_lens,
            trash_orphan_sample_files: args.trash_orphan_sample_files,
            delete_orphan_rows: args.delete_orphan_rows,
            trash_corrupt_rows: args.trash_corrupt_rows,
        },
    )
}