#![allow(async_fn_in_trait)]
use crate::database::{article::Article, page::Page, PsqlData};
use sqlx::{PgPool, Pool, Postgres};
use std::error::Error;
use std::{
    fs::{self, metadata},
    path::PathBuf,
};
use tracing::info;
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
mod database;
mod html;
mod macros;

pub async fn run_server() -> std::io::Result<()> {
    let pool: PgPool = match database::establish_connection().await {
        Ok(p) => p,
        Err(_) => panic!("error connecting to database"),
    };
    tracing_subscriber::registry()
        .with(
            tracing_subscriber::EnvFilter::try_from_default_env()
                .unwrap_or_else(|_| "achubb_backend".into()),
        )
        .with(tracing_subscriber::fmt::layer())
        .init();
    info!("initializing router...");
    let port = 21212_u16;
    let addr = std::net::SocketAddr::from(([0, 0, 0, 0], port));
    let router = html::root::get_router(pool);
    info!("router initialized, now listening on port {}", port);
    match axum::Server::bind(&addr)
        .serve(router.into_make_service())
        .await
    {
        Ok(p) => p,
        Err(_) => panic!("error starting webserver"),
    }
    Ok(())
}

pub async fn run_load() -> Result<(), Box<dyn Error>> {
    let pool: PgPool = match database::establish_connection().await {
        Ok(p) => p,
        Err(_) => panic!("error connecting to database"),
    };

    load_articles(&pool).await?;
    load_pages(&pool).await?;
    Ok(())
}

async fn load_articles(pool: &Pool<Postgres>) -> Result<(), Box<dyn Error>> {
    let paths = fs::read_dir("blog/").unwrap();
    for path_entry in paths {
        let path: PathBuf = path_entry.unwrap().path();
        let metadata = metadata(path.clone()).unwrap();
        if metadata.is_file() {
            let mut article: Article = Article::from_file(path);
            match Article::read_by_reference(pool, &article.reference).await {
                Ok(art) => {
                    article.id = art.id;
                    article.update(pool).await?
                }
                Err(_) => article.insert(pool).await?,
            }
        }
    }
    Ok(())
}

async fn load_pages(pool: &Pool<Postgres>) -> Result<(), Box<dyn Error>> {
    let paths = fs::read_dir("pages/").unwrap();
    for path_entry in paths {
        let path: PathBuf = path_entry.unwrap().path();
        let metadata = metadata(path.clone()).unwrap();
        if metadata.is_file() {
            let mut page: Page = Page::from_file(path);
            match Page::read_by_reference(pool, &page.reference).await {
                Ok(proj) => {
                    page.id = proj.id;
                    page.update(pool).await?
                }
                Err(_) => page.insert(pool).await?,
            }
        }
    }
    Ok(())
}