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use std::{io::{self, Write}, time::Duration};
use unicode_width::UnicodeWidthStr;
use rodio::{OutputStream, Sink, source::{SineWave, Source}};
use clap::Parser;
#[derive(Parser, Debug)]
#[clap(version, about, long_about = None)]
struct Args {
/// How many spaces a tab character counts as
#[clap(short, long, value_parser, default_value_t = 4)]
tab_width: usize,
/// Frequency of tones. Multiplied by line length
#[clap(short, long, value_parser, default_value_t = 20.0)]
frequency: f32,
/// Duration of each tone, in seconds
#[clap(short, long, value_parser, default_value_t = 0.1)]
duration: f32,
/// Amplifier of tones
#[clap(short, long, value_parser, default_value_t = 1.0)]
amplifier: f32,
}
fn main() {
let args = Args::parse();
let (_stream, stream_handle) = OutputStream::try_default().unwrap();
let sink = Sink::try_new(&stream_handle).unwrap();
let mut stdout = io::stdout().lock();
for line in io::stdin().lines() {
let line: String = line
.unwrap()
.chars()
.map(|c|
if c == '\t' {
String::from(" ").repeat(args.tab_width)
} else {
c.to_string()
}
)
.collect();
let len = UnicodeWidthStr::width(&*line) as f32;
stdout.write_fmt(format_args!("{}\n", line)).unwrap();
sink.append(SineWave::new(args.frequency * len)
.take_duration(Duration::from_secs_f32(args.duration))
.amplify(args.amplifier));
sink.sleep_until_end();
}
}
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