rucksack-db 0.9.0

use anyhow::{anyhow, Result};

use rucksack_lib::util;

use super::shared;
pub use super::v040::{Creds, DecryptedRecord, EncryptedRecord, Kind, Metadata};

pub const VERSION: &str = "0.5.0";

pub type HashMap = dashmap::DashMap<String, EncryptedRecord>;

pub fn decode_hashmap(bytes: Vec<u8>, mut version: versions::SemVer) -> Result<HashMap> {
    log::debug!(
        "Decoding hashmap from stored bytes (format version {:})...",
        version
    );
    version = shared::trim_version(version);
    let hm: HashMap = dashmap::DashMap::new();
    log::trace!("Created hashmap.");
    let sorted_vec: Vec<(String, EncryptedRecord)>;
    log::trace!("Created vec for sorted data.");
    if version < shared::version(VERSION) {
        let msg = format!("automatic migration not supported for versions prior to: {VERSION}");
        log::error!("{}", msg);
        return Err(anyhow!(msg));
    }
    match bincode::decode_from_slice(bytes.as_ref(), util::bincode_cfg()) {
        Ok((result, _len)) => {
            sorted_vec = result;
            for (key, val) in sorted_vec {
                if hm.insert(key.clone(), val).is_some() {}
            }
            Ok(hm)
        }
        Err(e) => {
            let msg = format!("couldn't deserialise bincoded hashmap bytes: {e:?}");
            log::error!("{}", msg);
            Err(anyhow!(msg))
        }
    }
}