use std::sync::Arc;

use poem::{
    error::InternalServerError,
    handler,
    web::{Data, Html},
};
use tera::Context;

use crate::{
    app_state::AppState, data::book::Book, handlers::error::SqliteError, templates::TEMPLATES,
};

#[handler]
pub async fn handler(state: Data<&Arc<AppState>>) -> Result<Html<String>, poem::Error> {
    let recent_books = state.calibre.recent_books(50).map_err(SqliteError)?;
    let recent_books = recent_books
        .iter()
        .filter_map(|x| {
            let author = state.calibre.book_author(x.id).ok()?;
            let series = state.calibre.book_series(x.id).ok()?;
            Some(Book::from_db_book(x, series, &author.name))
        })
        .collect::<Vec<Book>>();

    let mut context = Context::new();
    context.insert("books", &recent_books);
    TEMPLATES
        .render("recents", &context)
        .map_err(InternalServerError)
        .map(Html)
}