def main [host: string, destination: string, ssh_key: path] {
    let ssh_args = [-i $ssh_key $host]
    let scp_args = [-r -i $ssh_key]
    let target = "x86_64-unknown-linux-musl"
    let app_name = "staking_watchdog"
    let build = "debug" # "debug" or "release".

    def invoke_ssh [command: string] {
        let args = $ssh_args ++ $command
        print $"Executing: ssh ($args)"
        ssh $args
    }

    def copy_ssh [source: string, destination: string] {
        let args = $scp_args ++ [$source $"($host):($destination)"]
        print $"Executing: scp ($args)"
        scp $args
    }

    # Don't know how to dynamically pass variable arguments.
    if $build == "release" {
        cargo build --target $target --release
    } else {
        cargo build --target $target
    }

    # invoke_ssh [sudo systemctl stop $app_name]
    copy_ssh ./target/($target)/($build)/($app_name) $destination
    invoke_ssh $"chmod u+x ($destination)/($app_name)"
    # invoke_ssh [sudo systemctl start $app_name]
    print "Deployment finished"
}