/*
This file is part of metamuffins website (https://codeberg.org/metamuffin/website)
which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
Copyright (C) 2023 metamuffin <metamuffin.org>
*/

use crate::blog::rocket_uri_macro_r_blog;
use crate::pages::{
    rocket_uri_macro_r_about, rocket_uri_macro_r_contact, rocket_uri_macro_r_pgp_key,
    rocket_uri_macro_r_projects, rocket_uri_macro_r_stuff, rocket_uri_macro_r_toggle_css,
};
use crate::source::rocket_uri_macro_r_source;
use crate::uri;
use markup::Render;
use rocket::http::CookieJar;
use rocket::{
    http::ContentType,
    response::{self, Responder},
    Request, Response,
};
use std::io::Cursor;

markup::define! {
    ScaffoldImpl<Main: Render>(
        title: String,
        main: Main,
        noimg: bool,
        include_css: bool
    ) {
        @markup::doctype()
        html[lang="en"] {
            head {
                title { @title " - " "metamuffin's website" }
                meta[name="viewport", content="width=device-width, initial-scale=1.0"];
                meta[name="description", content="metamuffin's personal website"]; // TODO
                @if *include_css { link[rel="stylesheet", href="/style.css"]; }
            }
            body {
                @if !noimg { img[
                    src="https://s.metamuffin.org/avatar/default-512.webp",
                    alt="a muffin with purple glowing regions where a 3d vornoi function using chebychev distance exceeds some threshold",
                    align="left",
                    height=80,
                    width=80,
                    hspace=10,
                ]; }
                h1 { "metamuffin's personal website" }
                nav {
                    a[href=uri!(r_about())] { "About" } " "
                    a[href=uri!(r_blog())] { "Blog" } " "
                    a[href=uri!(r_projects())] { "Projects" } " "
                    a[href=uri!(r_contact())] { "Contact" } " "
                    a[href=uri!(r_stuff())] { "Stuff" } " "
                    a[href="https://codeberg.org/metamuffin"] { "Codeberg" } " "
                    a[href=uri!(r_pgp_key())] { "PGP-Key" } " "
                }
                hr;
                article { @main }
                hr;
                footer {
                    p {
                        "metamuffin's website; version " @include_str!("../.git/refs/heads/main")[0..10] "; "
                        "sources available on " a[href=uri!(r_source())] { "this page itself" }
                        " and on " a[href="https://codeberg.org/metamuffin/website"] { "codeberg" }
                    }
                    p { "In case you " i {"really"} " want to, you can enable stylesheets." }
                    form[action=uri!(r_toggle_css()), method="POST"] {
                        input[type="submit", value="Toggle CSS (uses a cookie)"];
                    }
                }
            }
        }
    }
}

pub type DynScaffold<'a> = Scaffold<markup::DynRender<'a>>;

pub struct Scaffold<T> {
    pub title: String,
    pub content: T,
}

impl<'r, Main: Render> Responder<'r, 'static> for Scaffold<Main> {
    fn respond_to(self, req: &'r Request<'_>) -> response::Result<'static> {
        let jar = async_std::task::block_on(req.guard::<&CookieJar>()).unwrap();
        let mut out = String::new();
        ScaffoldImpl {
            main: self.content,
            noimg: self.title == "Source",
            title: self.title,
            include_css: jar.get("css").map(|v| v.value() == "yes").unwrap_or(false),
        }
        .render(&mut out)
        .unwrap();

        Response::build()
            .header(ContentType::HTML)
            .streamed_body(Cursor::new(out))
            .ok()
    }
}