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// use std::io::{self, BufRead};
use rayon::prelude::*;
use sqlx::migrate::MigrateDatabase;
// use std::sync::{Arc, Mutex};
use std::time::Instant;
use tokio;
mod graph;
mod geng;
use crate::geng::GengIterator;
mod compute;
#[tokio::main]
async fn main() -> Result<(), sqlx::Error> {
dotenv::dotenv().ok();
let database_url =
std::env::var("DATABASE_URL").expect("Expected DATABASE_URL in env");
if !sqlx::Sqlite::database_exists(&database_url).await? {
sqlx::Sqlite::create_database(&database_url).await?;
}
let db = sqlx::SqlitePool::connect(&database_url).await?;
let _ = sqlx::query!(
"CREATE TABLE IF NOT EXISTS graphs (g6 VARCHAR NOT NULL);"
)
.execute(&db)
.await;
let gi = GengIterator::new(6);
// let res: Vec<_> =
// gi.par_bridge().map(compute::dominating_numbers).collect();
// let res: Vec<_> = gi.map(compute::dominating_numbers).collect();
for pair in &res {
if let Some(cardinality) = pair.1 {
println!("{} {:?} {:?}", pair.0, cardinality, pair.2);
}
}
// let start = Instant::now();
// let res = gi
// .par_bridge()
// .map(compute::apply_theorems)
// .collect::<Vec<_>>();
//
// let elapsed = start.elapsed();
// let time = elapsed.as_nanos();
// println!("len = {}", res.len());
// println!("Time elapsed: {}s", time as f64 / 1e9);
Ok(())
}
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