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::HandlerError, templates::TEMPLATES,
};

#[handler]
pub async fn handler(state: Data<&Arc<AppState>>) -> Result<Html<String>, poem::Error> {
    let recent_books = state
        .calibre
        .recent_books(25)
        .map_err(HandlerError::DataError)?;
    let recent_books = recent_books
        .iter()
        .filter_map(|x| Book::full_book(x, &state))
        .collect::<Vec<Book>>();

    let mut context = Context::new();
    context.insert("title", "Recent Books");
    context.insert("nav", "recent");
    context.insert("books", &recent_books);
    TEMPLATES
        .render("book_list", &context)
        .map_err(InternalServerError)
        .map(Html)
}