use std::{error::Error, process, time::Duration};

use chrono::Local;
use rand::Rng;

use crate::{
    bot::IzzilisBot,
    publish::FediversePublisher,
    selection::{ConsoleSelector, SelectorExt},
};

use futures::StreamExt;
use futures_timer::Delay;
use model::SampleModelExt;

mod bot;
mod config;
mod model;
mod publish;
mod selection;

const CONFIG_PATH: &str = "bot_config.json";

fn main() -> Result<(), Box<dyn Error>> {
    smol::block_on(async {
        let cfg = match config::Config::from(CONFIG_PATH.to_string()) {
            Ok(cfg) => cfg,
            Err(_) => {
                println!(
                    "Failed reading config at [{}], writing default",
                    CONFIG_PATH
                );
                match config::Config::default().save(CONFIG_PATH.to_string()) {
                    Some(err) => println!("Failed writing file to {}: {}", CONFIG_PATH, err),
                    None => (),
                }
                process::exit(1);
            }
        };

        let mut gpt_model = ConsoleSelector.filter(
            model::GPTSampleModel::new(
                cfg.python_path(),
                cfg.gpt_code_path(),
                vec![
                    "generate_unconditional_samples.py".to_string(),
                    "--model_name".to_string(),
                    cfg.model_name(),
                    "--temperature".to_string(),
                    cfg.temperature(),
                    "--top_k".to_string(),
                    cfg.top_k(),
                    "--nsamples".to_string(),
                    "1".to_string(),
                ],
            )
            .into_stream()
            .take(10),
        );

        while let Some(Ok(sample)) = gpt_model.next().await {
            println!("{}", sample);
        }

        return Ok(());
        // let publisher = FediversePublisher::new(cfg.fediverse_base_url())?;
        // // let publisher = ConsolePublisher::new();
        // let console_selector = ConsoleSelector::new();
        // let mut bot = IzzilisBot::new(gen, publisher, console_selector);
        // bot.generate_samples();

        // let cfg_interval = cfg.interval_seconds();
        // loop {
        //     let wait_seconds = rand::thread_rng().gen_range(cfg_interval.min()..cfg_interval.max());
        //     let wait_time = Duration::from_secs(wait_seconds);
        //     let now = Local::now();
        //     println!("[{}] Next post is in [{}] seconds", now, wait_seconds);
        //     Delay::new(wait_time).await;
        //     match bot.publish() {
        //         Err(err) => println!("Got error from publish: [{}]; continuing", err),
        //         Ok(()) => println!("publish() call successful"),
        //     }
        // }
    })
}