/*
 * SPDX-FileCopyrightText: 2020 Stalwart Labs Ltd <hello@stalw.art>
 *
 * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
 */

use std::time::{Duration, Instant};

use foundationdb::{api::NetworkAutoStop, Database, FdbError};

use crate::Error;

pub mod blob;
pub mod main;
pub mod read;
pub mod write;

const MAX_VALUE_SIZE: usize = 100000;

#[allow(dead_code)]
pub struct FdbStore {
    db: Database,
    guard: NetworkAutoStop,
    version: parking_lot::Mutex<ReadVersion>,
}

pub(crate) struct ReadVersion {
    version: i64,
    expires: Instant,
}

impl ReadVersion {
    pub fn new(version: i64) -> Self {
        Self {
            version,
            expires: Instant::now() + Duration::from_secs(1),
        }
    }

    pub fn is_expired(&self) -> bool {
        self.expires < Instant::now()
    }
}

impl Default for ReadVersion {
    fn default() -> Self {
        Self {
            version: 0,
            expires: Instant::now(),
        }
    }
}

impl From<FdbError> for Error {
    fn from(error: FdbError) -> Self {
        Self::InternalError(format!("FoundationDB error: {}", error.message()))
    }
}