use rocket_dyn_templates::Template;
use rocket::fs::NamedFile;
use std::path::{Path, PathBuf};
use std::collections::HashMap;
use std::env;

// TODO: try... literally try to reduce the number of clones that happen here

lazy_static! {
    static ref SITENAME: String = {
        env::var("SITE_NAME").unwrap_or("Clippable".to_string())
    };
    static ref SITEDESC: String = {
        env::var("SITE_DESC").unwrap_or("Short clips".to_string())
    };
    static ref SITEURL: String = {
        env::var("SITE_URL").unwrap_or("#".to_string())
    };
}

fn default_map() -> HashMap<&'static str, String> {
    let mut h: HashMap<&'static str, String> = HashMap::new();
    h.insert("sitetitle", SITENAME.clone());
    h.insert("sitedesc", SITEDESC.clone());
    h.insert("siteurl", SITEURL.clone());
    return h;
}

#[get("/")]
pub async fn home() -> Template {
    let mut h = default_map();
    h.insert("script_src", String::from("index.js"));
    h.insert("page", String::from("home"));
    h.insert("title", SITENAME.clone());

    return Template::render("list", &h);
}

#[get("/category/<cat..>")]
pub async fn category(cat: PathBuf) -> Template {
    let mut h = default_map();
    h.insert("script_src", String::from("category.js"));
    h.insert("page", String::from("category"));

    // Opengraph meta tags bro
    let cat = cat.file_name().unwrap().to_string_lossy();
    h.insert("title", cat.to_string());
    h.insert("url", format!("/category/{}", cat));
    h.insert("desc", format!("{} clips", cat));
    h.insert("ogimg", format!("/thumbnail/{}/category-thumbnail.jpg", cat));

    return Template::render("list", &h);
}

#[get("/clip/<cat>/<file_base>")]
pub async fn video(cat: PathBuf, file_base: PathBuf) -> Template {
    let mut h: HashMap<&'static str, &str> = HashMap::new();

    let cat = cat.to_string_lossy();
    let file = file_base.to_string_lossy();

    let mut file_pretty = file.to_string();
    for c in ["-", "_", ".mp4", ".mkv", ".webm"] {
        file_pretty = file_pretty.replace(c, " ");
    }

    h.insert("title", &file_pretty);

    let url = format!("/clip/{}/{}", &cat, &file);
    h.insert("url", &url);
    h.insert("desc", &file_pretty);

    let thumbnail = format!("/thumbnail/{}/{}", cat, file);
    h.insert("ogimg", &thumbnail);

    let clip_url = format!("/video/{}/{}", &cat, &file);
    h.insert("clip_url", &clip_url);
    return Template::render("video", &h);
}

#[get("/<file..>")]
pub async fn files(file: PathBuf) -> Option<NamedFile> {
    // Used for things like javascript, css, and favicons
    NamedFile::open(Path::new("static/").join(file)).await.ok()
}