// SPDX-License-Identifier: MIT OR Apache-2.0
use std.env as env;
use std.fs as fs;
use std.io as io;
use std.string as text;

fn count_file(path: String) -> Result<Int, io.IoError> {
    let contents = fs.read(path)?;
    return Result.Ok(text.split_ascii_whitespace(contents).len());
}

fn main() {
    let arguments = env.args();
    if arguments.len() != 1 {
        panic("usage: word_count <path>");
    }
    match count_file(arguments.get(0)) {
        Result.Ok(count) => println(count),
        Result.Err(error) => { panic(io.describe_error(error)); },
    };
}