From 139a5b51b64dc6447d0a77bdf92cfcd68ebb8d4e Mon Sep 17 00:00:00 2001
From: Johannes Hoff <johshoff@gmail.com>
Date: Sun, 20 Aug 2017 21:59:16 +0200
Subject: [PATCH] Propage database connections; dispatch requests

---
 src/main.rs  |  7 +++----
 src/site.rs  | 57 +++++++++++++++++++++++++++++++++++++++++++++-------
 src/state.rs | 17 ++++++++++++++++
 3 files changed, 70 insertions(+), 11 deletions(-)
 create mode 100644 src/state.rs

diff --git a/src/main.rs b/src/main.rs
index bafacb7..059131e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,6 +11,7 @@ use std::net::SocketAddr;
 mod db;
 mod schema;
 mod site;
+mod state;
 
 fn args<'a>() -> clap::ArgMatches<'a> {
     use clap::{App, Arg};
@@ -35,19 +36,17 @@ fn args<'a>() -> clap::ArgMatches<'a> {
 fn core_main() -> Result<(), Box<std::error::Error>> {
     let args = args();
 
-    let db_file = args.value_of("DATABASE").expect("Guaranteed by clap");
+    let db_file = args.value_of("DATABASE").expect("Guaranteed by clap").to_owned();
     let bind_host = "127.0.0.1".parse().unwrap();
     let bind_port = args.value_of("port")
         .map(|p| p.parse().expect("Guaranteed by validator"))
         .unwrap_or(8080);
 
-    let _db_connection = db::connect_database(db_file, true);
-
     let server =
         hyper::server::Http::new()
             .bind(
                 &SocketAddr::new(bind_host, bind_port),
-                || Ok(site::Site {})
+                move || Ok(site::Site::new(state::State::new(db::connect_database(&db_file, true))))
             )?;
 
     server.run()?;
diff --git a/src/site.rs b/src/site.rs
index 7ed06fd..97182ed 100644
--- a/src/site.rs
+++ b/src/site.rs
@@ -3,12 +3,20 @@ use hyper;
 use hyper::header::ContentType;
 use hyper::mime;
 use hyper::server::*;
+use state::State;
 
 lazy_static! {
     static ref TEXT_HTML: mime::Mime = "text/html;charset=utf-8".parse().unwrap();
 }
 
 pub struct Site {
+    state: State
+}
+
+impl Site {
+    pub fn new(state: State) -> Site {
+        Site { state }
+    }
 }
 
 impl Service for Site {
@@ -17,12 +25,47 @@ impl Service for Site {
     type Error = hyper::Error;
     type Future = futures::BoxFuture<Response, Self::Error>;
 
-    fn call(&self, _req: Request) -> Self::Future {
-        futures::finished(
-            Response::new()
-                .with_header(ContentType(TEXT_HTML.clone()))
-                .with_body(format!("WOOOOOOOOOOT!"))
-                .with_status(hyper::StatusCode::Ok)
-        ).boxed()
+    fn call(&self, req: Request) -> Self::Future {
+        println!("{} {}", req.method(), req.path());
+
+        let path = req.path();
+
+        if path.starts_with("/_") {
+            futures::finished(
+                Response::new()
+                    .with_header(ContentType(TEXT_HTML.clone()))
+                    .with_body(format!("Page not found"))
+                    .with_status(hyper::StatusCode::NotFound)
+            ).boxed()
+        } else {
+            assert!(path.starts_with("/"));
+            match self.state.find_article_by_slug(&path[1..]) {
+                Ok(Some(article)) => {
+                    futures::finished(
+                        Response::new()
+                            .with_header(ContentType(TEXT_HTML.clone()))
+                            .with_body(format!("Article found."))
+                            .with_status(hyper::StatusCode::Ok)
+                    ).boxed()
+                },
+                Ok(None) => {
+                    futures::finished(
+                        Response::new()
+                            .with_header(ContentType(TEXT_HTML.clone()))
+                            .with_body(format!("Article not found."))
+                            .with_status(hyper::StatusCode::NotFound)
+                    ).boxed()
+                },
+                Err(err) => {
+                    eprintln!("Error while servicing request {} {}:\n{:#?}", req.method(), req.path(), err);
+                    futures::finished(
+                        Response::new()
+                            .with_header(ContentType(TEXT_HTML.clone()))
+                            .with_body(format!("Internal server error"))
+                            .with_status(hyper::StatusCode::InternalServerError)
+                    ).boxed()
+                }
+            }
+        }
     }
 }
diff --git a/src/state.rs b/src/state.rs
new file mode 100644
index 0000000..1f87fd2
--- /dev/null
+++ b/src/state.rs
@@ -0,0 +1,17 @@
+use std;
+
+use diesel::sqlite::SqliteConnection;
+
+pub struct State {
+    db_connection: SqliteConnection
+}
+
+impl State {
+    pub fn new(db_connection: SqliteConnection) -> State {
+        State { db_connection }
+    }
+
+    pub fn find_article_by_slug(&self, slug: &str) -> Result<Option<()>, Box<std::error::Error>> {
+        Ok(None)
+    }
+}