use actix_web::{get, web, Responder};
use cached::proc_macro::once;
use ramhorns::Content;

use crate::{
    config::Config,
    misc::{
        markdown::{read_file, File, TypeFileMetadata},
        utils::{make_kw, Html},
    },
    template::{Infos, NavBar},
};

#[get("/")]
async fn page(config: web::Data<Config>) -> impl Responder {
    Html(build_page(config.get_ref().to_owned()))
}

#[derive(Content, Debug)]
struct IndexTemplate {
    navbar: NavBar,
    name: String,
    pronouns: Option<String>,
    content: Option<File>,
    avatar: String,
    avatar_caption: String,
}

#[once(time = 60)]
fn build_page(config: Config) -> String {
    let mut file = read_file(
        &format!("{}/index.md", config.locations.data_dir),
        TypeFileMetadata::Index,
    );

    // Default values
    let mut name = config.fc.fullname.to_owned().unwrap_or_default();
    let mut pronouns = None;
    let mut avatar = "/icons/apple-touch-icon.png".to_owned();
    let mut avatar_caption = "EWP avatar".to_owned();

    if let Some(f) = &file {
        if let Some(m) = &f.metadata.info.index {
            name = m.name.to_owned().unwrap_or(name);
            avatar = m.avatar.to_owned().unwrap_or(avatar);
            pronouns = m.pronouns.to_owned();
            avatar_caption = m.avatar_caption.to_owned().unwrap_or(avatar_caption);
        }
    } else {
        file = read_file("README.md", TypeFileMetadata::Generic);
    }

    config.tmpl.render(
        "index.html",
        IndexTemplate {
            navbar: NavBar {
                index: true,
                ..NavBar::default()
            },
            content: file,
            name,
            pronouns,
            avatar,
            avatar_caption,
        },
        Infos {
            page_title: config.fc.fullname,
            page_desc: Some("Page principale".into()),
            page_kw: make_kw(&["index", "étudiant", "accueil"]),
        },
    )
}