#![feature(round_char_boundary)]
#![feature(exact_size_is_empty)]
use std::io::Read;

use organic::compare::run_anonymous_compare;
use organic::compare::run_compare_on_file;

#[cfg(feature = "tracing")]
use crate::init_tracing::init_telemetry;
#[cfg(feature = "tracing")]
use crate::init_tracing::shutdown_telemetry;
#[cfg(feature = "tracing")]
mod init_tracing;

#[cfg(not(feature = "tracing"))]
fn main() -> Result<(), Box<dyn std::error::Error>> {
    let rt = tokio::runtime::Runtime::new()?;
    let result = rt.block_on(async {
        let main_body_result = main_body().await;
        main_body_result
    });
    result
}

#[cfg(feature = "tracing")]
fn main() -> Result<(), Box<dyn std::error::Error>> {
    let rt = tokio::runtime::Runtime::new()?;
    let result = rt.block_on(async {
        init_telemetry()?;
        let main_body_result = main_body();
        shutdown_telemetry()?;
        main_body_result
    });
    result
}

#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
async fn main_body() -> Result<(), Box<dyn std::error::Error>> {
    let args = std::env::args().skip(1);
    if args.is_empty() {
        let org_contents = read_stdin_to_string()?;
        if run_anonymous_compare(org_contents).await? {
        } else {
            Err("Diff results do not match.")?;
        }
        Ok(())
    } else {
        for arg in args {
            if run_compare_on_file(arg).await? {
            } else {
                Err("Diff results do not match.")?;
            }
        }
        Ok(())
    }
}

fn read_stdin_to_string() -> Result<String, Box<dyn std::error::Error>> {
    let mut stdin_contents = String::new();
    std::io::stdin()
        .lock()
        .read_to_string(&mut stdin_contents)?;
    Ok(stdin_contents)
}