//! Hello world example to demonstrate basic usage of ZboxFS.
//!
//! To run this example, use the command below:
//!
//! $ cargo run --example hello_world --features storage-file

extern crate zbox;

use std::io::{Read, Seek, SeekFrom, Write};
use zbox::{init_env, OpenOptions, RepoOpener};

fn main() {
    // initialise zbox environment, called first
    init_env();

    // create and open a repository
    let mut repo = RepoOpener::new()
        .create(true)
        .open("file://./my_repo", "your password")
        .unwrap();

    // create and open a file for writing
    let mut file = OpenOptions::new()
        .create(true)
        .open(&mut repo, "/my_file.txt")
        .unwrap();

    // use std::io::Write trait to write data into it
    file.write_all(b"Hello, World!").unwrap();

    // finish writting to make a permanent content version
    file.finish().unwrap();

    // read file content using std::io::Read trait
    let mut content = String::new();
    file.seek(SeekFrom::Start(0)).unwrap();
    file.read_to_string(&mut content).unwrap();

    println!("{}", content);

    // cleanup
    std::fs::remove_dir_all("./my_repo").unwrap();
}