wip: wrangling warp

Cargo.toml

@@ -6,3 +6,8 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+base64 = "0.13.0"
+envy = "0.4.2"
+tokio = { version = "~1.17.0", features = ["full"] }
+validators = "0.24.1"
+warp = "0.3.2"

src/main.rs

@@ -1,3 +1,67 @@
-fn main() {
+use std::{collections::BTreeSet, str::FromStr};
-    println!("Hello, world!");
+
+use validators::prelude::*;
+use warp::{Filter, Reply};
+
+#[derive(Debug, Validator)]
+#[validator(base64_url(padding(NotAllow)))]
+struct Base64WithoutPaddingUrl(String);
+
+impl FromStr for Base64WithoutPaddingUrl {
+    type Err = <Self as ValidateString>::Error;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Self::parse_str(s)
+    }
+}
+
+struct SlugParser {
+    slug_length: usize,
+    slug_chars: BTreeSet<char>,
+}
+
+struct Slug(String);
+
+enum InvalidSlug {
+    TooLong,
+    BadChar,
+}
+
+impl SlugParser {
+    fn slug_from_str(s: &str) -> Result<Slug, InvalidSlug> {
+        todo!()
+    }
+}
+
+async fn shorten<'s>(b64url: &'s str) -> Result<impl Reply, impl Reply> {
+    let url = base64::decode_config(b64url, base64::URL_SAFE_NO_PAD).map_err(|_| {
+        warp::reply::with_status(warp::reply(), warp::http::StatusCode::BAD_REQUEST)
+    })?;
+    todo!();
+    Ok(warp::reply())
+}
+
+macro_rules! unwrap_and_err {
+    ($x: ident) => {
+        
+    };
+}
+
+#[tokio::main]
+async fn main() {
+    // GET /
+    let homepage = warp::path::end().and(warp::fs::file("index.html"));
+
+    // GET /shorten/:Base64WithoutPaddingUrl
+    let shorten = warp::path!("shorten" / Base64WithoutPaddingUrl)
+        .map(|link: Base64WithoutPaddingUrl| shorten(&link.0));
+
+    // GET /l/:Slug
+    let link = warp::path("l")
+        .and(warp::path::param())
+        .map(|slug: String| warp::reply());
+
+    let routes = warp::get().and(homepage.or(shorten).or(link));
+
+    warp::serve(routes).run(([127, 0, 0, 1], 8892)).await;
 }