extern crate self_meter;
extern crate serde_json;

use std::io::{Write, stderr};
use std::time::Duration;
use std::thread::sleep;
use std::collections::BTreeMap;


fn main() {
    let mut meter = self_meter::Meter::new(Duration::new(1, 0)).unwrap();
    meter.track_current_thread("main");
    loop {
        meter.scan()
            .map_err(|e| writeln!(&mut stderr(), "Scan error: {}", e)).ok();
        println!("Report: {}",
            serde_json::ser::to_string_pretty(&meter.report()).unwrap());
        println!("Threads: {}",
            serde_json::ser::to_string_pretty(
                &meter.thread_report().map(|x| x.collect::<BTreeMap<_,_>>())
            ).unwrap());
        let mut x = 0;
        for _ in 0..10000000 {
            x = u64::wrapping_mul(x, 7);
        }
        sleep(Duration::new(1, 0));
    }
}