ruscode 1.0.0

ruscode - A visual studio code's workspaces organizer written in Rust
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use chrono::{TimeZone, Utc};
use std::{fs, time::UNIX_EPOCH};

use crate::domain::entity::workspace::Workspace;

use super::error::SystemError;

pub fn last_modified(workspace: &Workspace) -> Result<String, SystemError> {
    let result: Result<Vec<fs::DirEntry>, _> = match fs::read_dir(workspace.strip_decode_path()) {
        Ok(val) => Ok(val.flatten().collect()),
        Err(_) => return Err(SystemError::OpenWorkspaceFolderFailed),
    };

    let mut entries = result?;
    entries.sort_by_cached_key(|f| f.metadata().unwrap().modified().unwrap());

    let last_modified_secs = if !(entries.is_empty()) {
        entries[0]
            .metadata()
            .unwrap()
            .modified()
            .unwrap()
            .duration_since(UNIX_EPOCH)
            .unwrap()
            .as_secs()
    } else {
        0u64
    };

    Ok(Utc
        .timestamp_opt(last_modified_secs as i64, 0)
        .unwrap()
        .format("%Y/%m/%d")
        .to_string())
}

#[cfg(test)]
mod test_folder_observer {
    #[test]
    fn test_last_modified() {
        // let sys_time = last_modified();
        // let last_modified_secs = sys_time.duration_since(UNIX_EPOCH).unwrap().as_secs();
    }
}