// Copyright 2017 rust-ipfs-api Developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
//

extern crate futures;
extern crate ipfs_api;
extern crate tar;
extern crate tokio_core;

use futures::stream::Stream;
use ipfs_api::IpfsClient;
use std::io::Cursor;
use tar::Builder;
use tokio_core::reactor::Core;

// Creates an Ipfs client, and adds this source file to Ipfs.
//
fn main() {
    println!("note: this must be run in the root of the project repository");
    println!("connecting to localhost:5001...");

    let mut core = Core::new().expect("expected event loop");
    let client = IpfsClient::default(&core.handle());

    let mut buf = Vec::new();

    // Create a in-memory tar file with this source file as its contents.
    //
    {
        let mut builder = Builder::new(&mut buf);

        builder
            .append_path(file!())
            .expect("failed to create tar file");
        builder.finish().expect("failed to create tar file");
    }

    let cursor = Cursor::new(buf);
    let req = client.tar_add(cursor);
    let add = core.run(req).expect("expected a valid response");

    println!("added tar file: {:?}", add);
    println!();

    let req = client.tar_cat(&add.hash[..]).concat2();
    let cat = core.run(req).expect("expected a valid response");

    println!("{}", String::from_utf8_lossy(&cat[..]));
    println!();
}