module main

import compress.zlib
import os

enum CompressionType {
    zlib
}

fn main() {
    if os.args.len != 5 {
        eprintln('v compress <type> <in> <out>')
        eprintln('supported types: zlib')
        exit(1)
    }
    compression_type := match os.args[2] {
        'zlib' {
            CompressionType.zlib
        }
        else {
            eprintln('unsupported type: ${os.args[1]}')
            exit(1)
        }
    }

    path := os.args[3]
    content := os.read_bytes(path) or {
        eprintln('unable to read "${path}": ${err}')
        exit(1)
    }
    compressed := match compression_type {
        .zlib {
            zlib.compress(content) or {
                eprintln('compression error: ${err}')
                exit(1)
            }
        }
    }

    out_path := os.args[4]

    os.write_file_array(out_path, compressed) or {
        eprintln('failed to write "${out_path}": ${err}')
        exit(1)
    }
}