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    /*
     * Copyright (C) 2022  Aravinth Manivannan <realaravinth@batsense.net>
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <https://www.gnu.org/licenses/>.
     */
    use std::borrow::Cow;

    use actix_web::body::BoxBody;
    use actix_web::{get, http::header, web, HttpResponse, Responder};
    use log::debug;
    use mime_guess::from_path;
    use rust_embed::RustEmbed;

    use crate::CACHE_AGE;

    pub mod assets {
        use lazy_static::lazy_static;

        use crate::FILES;

        type Img = (&'static str, &'static str);

        lazy_static! {
            pub static ref KEY: Img =
                (FILES.get("./static/cache/img/svg/key.svg").unwrap(), "key");
            pub static ref GITHUB: Img = (
                FILES.get("./static/cache/img/svg/github.svg").unwrap(),
                "Source code"
            );
            pub static ref HOME: Img = (
                FILES.get("./static/cache/img/svg/home.svg").unwrap(),
                "Home"
            );
            pub static ref SETTINGS_ICON: Img = (
                FILES.get("./static/cache/img/svg/settings.svg").unwrap(),
                "Settings"
            );
            pub static ref CREDIT_CARD: Img = (
                FILES.get("./static/cache/img/svg/credit-card.svg").unwrap(),
                "Payment"
            );
            pub static ref HELP_CIRCLE: Img = (
                FILES.get("./static/cache/img/svg/help-circle.svg").unwrap(),
                "Help"
            );
            pub static ref MESSAGE: Img = (
                FILES
                    .get("./static/cache/img/svg/message-square.svg")
                    .unwrap(),
                "Message"
            );
            pub static ref DOCS_ICON: Img = (
                FILES.get("./static/cache/img/svg/file-text.svg").unwrap(),
                "Documentation"
            );
            pub static ref MCAPTCHA_TRANS_ICON: Img = (
                FILES.get("./static/cache/img/icon-trans.png").unwrap(),
                "Logo"
            );
            pub static ref BAR_CHART: Img = (
                FILES.get("./static/cache/img/svg/bar-chart.svg").unwrap(),
                "Statistics"
            );
        }
    }

    #[derive(RustEmbed)]
    #[folder = "assets/"]
    struct Asset;

    fn handle_assets(path: &str) -> HttpResponse {
        match Asset::get(path) {
            Some(content) => {
                let body: BoxBody = match content.data {
                    Cow::Borrowed(bytes) => BoxBody::new(bytes),
                    Cow::Owned(bytes) => BoxBody::new(bytes),
                };

                HttpResponse::Ok()
                    .insert_header(header::CacheControl(vec![
                        header::CacheDirective::Public,
                        header::CacheDirective::Extension("immutable".into(), None),
                        header::CacheDirective::MaxAge(CACHE_AGE),
                    ]))
                    .content_type(from_path(path).first_or_octet_stream().as_ref())
                    .body(body)
            }
            None => HttpResponse::NotFound().body("404 Not Found"),
        }
    }

    #[get("/assets/{_:.*}")]
    pub async fn static_files(path: web::Path<String>) -> impl Responder {
        handle_assets(&path)
    }

    #[derive(RustEmbed)]
    #[folder = "static/favicons/"]
    struct Favicons;

    fn handle_favicons(path: &str) -> HttpResponse {
        match Favicons::get(path) {
            Some(content) => {
                let body: BoxBody = match content.data {
                    Cow::Borrowed(bytes) => BoxBody::new(bytes),
                    Cow::Owned(bytes) => BoxBody::new(bytes),
                };

                HttpResponse::Ok()
                    .insert_header(header::CacheControl(vec![
                        header::CacheDirective::Public,
                        header::CacheDirective::Extension("immutable".into(), None),
                        header::CacheDirective::MaxAge(CACHE_AGE),
                    ]))
                    .content_type(from_path(path).first_or_octet_stream().as_ref())
                    .body(body)
            }
            None => HttpResponse::NotFound().body("404 Not Found"),
        }
    }

    #[get("/{file}")]
    pub async fn favicons(path: web::Path<String>) -> impl Responder {
        debug!("searching favicons");
        handle_favicons(&path)
    }

    #[cfg(test)]
    mod tests {
        use actix_web::http::StatusCode;
        use actix_web::test;

        use crate::*;

        #[actix_rt::test]
        async fn static_assets_work() {
            let app = get_app!().await;

            let urls = [
                *crate::JS,
                *crate::VERIFICATIN_WIDGET_JS,
                *crate::VERIFICATIN_WIDGET_CSS,
                crate::FILES
                    .get("./static/cache/img/icon-trans.png")
                    .unwrap(),
                "/favicon.ico",
            ];

            for u in urls.iter() {
                println!("[*] Testing static asset at URL: {u}");
                let resp =
                    test::call_service(&app, test::TestRequest::get().uri(u).to_request())
                        .await;
                assert_eq!(resp.status(), StatusCode::OK);
            }
        }
    }