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use crate::{
extractor::build_regex_from_path,
http_types::{get, post, put, Endpoint, Method, StatusCode},
request::Request,
response::Response,
};
use regex::Regex;
use std::collections::HashMap;
type Handler = fn(&Request, Option<&HashMap<String, String>>) -> Response;
type Routes = HashMap<Endpoint, Handler>;
pub struct Router {
routes: Routes,
}
impl Router {
// Create a new Router
pub fn new() -> Self {
Router {
routes: HashMap::new(),
}
}
pub fn routes(&self) -> &Routes {
&self.routes
}
// Add a route to the router
pub fn route(&mut self, endpoint: Endpoint, handler: Handler) -> &mut Self {
use Method as M;
match (endpoint.method, endpoint.route) {
(M::GET, route) => {
let re = build_regex_from_path(&route);
let epoint = get(re.as_str());
self.routes.insert(epoint, handler);
}
(M::POST, route) => {
let re = build_regex_from_path(&route);
let epoint = post(re.as_str());
self.routes.insert(epoint, handler);
}
(M::PUT, route) => {
let re = build_regex_from_path(&route);
let meth = put(re.as_str());
self.routes.insert(meth, handler);
}
}
self
}
// Handle incoming requests
pub fn handle(&self, request: &Request, ctx: Option<&HashMap<String, String>>) -> Response {
use Method as M;
for (endpoint, handler) in self.routes() {
let repoint = &request.endpoint;
match (
&repoint.method,
&repoint.route,
&endpoint.method,
&endpoint.route,
) {
(M::GET, request_route, M::GET, endpoint_regex) => {
let re = Regex::new(&endpoint_regex).unwrap();
// dbg!(&re, request_method);
if re.is_match(&request_route) {
return handler(request, ctx);
}
}
(M::POST, request_route, M::POST, endpoint_regex) => {
let re = Regex::new(&endpoint_regex).unwrap();
// dbg!(&re, request_method);
if re.is_match(&request_route) {
return handler(request, ctx);
}
}
(M::PUT, request_route, M::PUT, endpoint_regex) => {
let re = Regex::new(&endpoint_regex).unwrap();
// dbg!(&re, request_method);
if re.is_match(&request_route) {
return handler(request, ctx);
}
}
_ => {}
}
}
Response::new("1.1".to_string(), StatusCode::NotFound, None, None)
}
}
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