pandora_lib_igv/src/lib.rs

use base64::engine::general_purpose::URL_SAFE_NO_PAD;
use base64::Engine;
use flate2::write::DeflateEncoder;
use flate2::Compression;
use std::io::prelude::*;

/// Compress string and encode in a URL safe form
fn compress_string(s: &str) -> String {
    // Convert string to bytes
    let bytes = s.as_bytes();

    // Compress the bytes using deflate
    let mut encoder = DeflateEncoder::new(Vec::new(), Compression::default());
    encoder.write_all(bytes).expect("Failed to write bytes");
    let compressed_bytes = encoder.finish().expect("Failed to compress bytes");

    // Encode the compressed bytes to base64
    URL_SAFE_NO_PAD.encode(compressed_bytes)
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn it_works() {
        let input_str = "your_string_here";
        let compressed_str = compress_string(input_str);
        println!("Compressed and URL-safe encoded string: {}", compressed_str);
    }
}