feat: added basic user management

Cargo.lock

@@ -369,6 +369,7 @@ dependencies = [
  "iana-time-zone",
  "js-sys",
  "num-traits",
+ "serde",
  "wasm-bindgen",
  "windows-targets 0.52.6",
 ]

flake.nix

@@ -70,6 +70,7 @@
             wasm-bindgen-cli
             dart-sass
             binaryen
+            sqlx-cli
           ];
           freebsd = buildTools.linux
             ++ [ pkgsCross.x86_64-freebsd.buildPackages.clang ];
@@ -89,9 +90,6 @@
           # Cargo lint tools
           taplo
           cargo-deny
-
-          # Web server tools
-          sqlx-cli
         ];
 
         craneLib = (crane.mkLib pkgs).overrideToolchain (p:

packages.nix

@@ -92,6 +92,8 @@ let
       (craneLib.fileset.commonCargoSources ./sparse-server)
       ./sparse-server/style
       ./sparse-server/public
+      ./sparse-server/.sqlx
+      ./sparse-server/migrations
     ];
   };
 

sparse-server/.sqlx/query-ed123391fb7afe255dc30bb1006410e8537b03cc9ff00c248ccc7c34a4a8366c.json

@@ -1,6 +1,6 @@
 {
   "db_name": "SQLite",
-  "query": "SELECT user_id, user_name FROM users",
+  "query": "SELECT user_id, user_name, (SELECT MAX(expires) FROM sessions s WHERE s.user_id = u.user_id) as last_active FROM users u",
   "describe": {
     "columns": [
       {
@@ -12,6 +12,11 @@
         "name": "user_name",
         "ordinal": 1,
         "type_info": "Text"
+      },
+      {
+        "name": "last_active",
+        "ordinal": 2,
+        "type_info": "Integer"
       }
     ],
     "parameters": {
@@ -19,8 +24,9 @@
     },
     "nullable": [
       false,
-      false
+      false,
+      true
     ]
   },
-  "hash": "7e9ab05c719af53d1feb7f03e9090892f870664687240210e9f4336692599b09"
+  "hash": "ed123391fb7afe255dc30bb1006410e8537b03cc9ff00c248ccc7c34a4a8366c"
 }

sparse-server/.sqlx/query-fe857854bbacf9e8fc44ef0dffc2d5e15da15f805064f1e969a1d6d9516294b6.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "DELETE FROM users WHERE user_id = ?",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": []
+  },
+  "hash": "fe857854bbacf9e8fc44ef0dffc2d5e15da15f805064f1e969a1d6d9516294b6"
+}

sparse-server/Cargo.toml

@@ -28,10 +28,10 @@ tokio-stream = { version = "0.1", optional = true }
 futures-util = { version = "0.3", optional = true }
 tracing = { version = "0.1", optional = true }
 web-sys = { version = "0.3", features = ["WebSocket"] }
-leptos-use = { version = "0.15", default-features = false, features = ["use_websocket"] }
+leptos-use = { version = "0.15", default-features = false, features = ["use_websocket", "use_interval"] }
 codee = "0.2"
 sqlx = { version = "0.8", default-features = false, features = ["chrono", "macros", "migrate", "runtime-tokio", "sqlite", "sqlx-sqlite"], optional = true }
-chrono = "0.4"
+chrono = { version = "0.4", features = ["serde"] }
 rpassword = { version = "7.3", optional = true }
 pbkdf2 = { version = "0.12", features = ["simple", "sha2"], optional = true }
 sha2 = { version = "0.10", optional = true }
@@ -39,7 +39,7 @@ hex = { version = "0.4", optional = true }
 serde = "1.0"
 
 [features]
-hydrate = ["leptos/hydrate"]
+hydrate = ["leptos/hydrate", "chrono/wasmbind"]
 ssr = [
   "dep:axum",
   "dep:tokio",

sparse-server/src/app.rs

@@ -1,7 +1,7 @@
 use leptos::prelude::*;
 use leptos_meta::{provide_meta_context, MetaTags, Stylesheet, Title};
 use leptos_router::{
-    components::{Route, Router, Routes},
+    components::{A, Route, Router, Routes},
     StaticSegment,
 };
 
@@ -50,12 +50,18 @@ pub fn App() -> impl IntoView {
 
         // content for this welcome page
         <Router>
-            <main>
+            <nav>
-                <Routes fallback=|| "Page not found.".into_view()>
+                <h1>"Sparse control"</h1>
-                    <Route path=StaticSegment("") view=HomePage/>
+                <A href="/">"Home"</A>
-                    <Route path=StaticSegment("/users") view=crate::users::UserView/>
+                <A href="/beacons">"Beacon management"</A>
-                </Routes>
+                <A href="/users">"Users"</A>
-            </main>
+            </nav>
+            <aside class="beacons">
+            </aside>
+            <Routes fallback=|| "Page not found.".into_view()>
+                <Route path=StaticSegment("") view=HomePage/>
+                <Route path=StaticSegment("/users") view=crate::users::UserView/>
+            </Routes>
         </Router>
     }
 }
@@ -104,41 +110,43 @@ fn HomePage() -> impl IntoView {
     };
 
     view! {
-        <h1>"Welcome to Leptos!"</h1>
+        <main class="main">
-        <button on:click=on_click>"Click Me: " {count}</button>
+            <h1>"Welcome to Leptos!"</h1>
-        <Suspense
+            <button on:click=on_click>"Click Me: " {count}</button>
-            fallback=move || view! { <p>"Loading..."</p> }
+            <Suspense
-        >
+                fallback=move || view! { <p>"Loading..."</p> }
-            <h2>"Loaded time:"</h2>
+            >
-            {move || {
+                <h2>"Loaded time:"</h2>
-                loaded_time.get()
+                {move || {
-                    .map(|time| match time {
+                    loaded_time.get()
-                        Ok(t) => view! { <p>{format!("{}", t)}</p>},
+                        .map(|time| match time {
-                        Err(_) => view! { <p>{"Error!".to_string()}</p> }
+                            Ok(t) => view! { <p>{format!("{}", t)}</p>},
-                    })
+                            Err(_) => view! { <p>{"Error!".to_string()}</p> }
-            }}
+                        })
-            <h2>"Requested time:"</h2>
+                }}
-            <button on:click=request_time_callback>"Request new time"</button>
+                <h2>"Requested time:"</h2>
-            {move || pending.get().then_some("Loading...")}
+                <button on:click=request_time_callback>"Request new time"</button>
-            {move || match requested_time.get() {
+                {move || pending.get().then_some("Loading...")}
-                Some(t) => {
+                {move || match requested_time.get() {
-                    leptos::logging::log!("updating time display");
+                    Some(t) => {
-                    view! { <p>{t}</p> }
+                        leptos::logging::log!("updating time display");
-                },
+                        view! { <p>{t}</p> }
-                None => view! { <p>{"N/A".to_string()}</p> }
+                    },
-            }}
+                    None => view! { <p>{"N/A".to_string()}</p> }
-        </Suspense>
+                }}
-        <h2>"Messages"</h2>
+            </Suspense>
-        <input bind:value=text_input />
+            <h2>"Messages"</h2>
-        <input
+            <input bind:value=text_input />
-            on:click=send_message
+            <input
-            type="button"
+                on:click=send_message
-            value="Send message"
+                type="button"
-        />
+                value="Send message"
-        {move || messages
+            />
-            .get()
+            {move || messages
-            .iter()
+                .get()
-            .map(|message| view! { <p>{message.clone()}</p> })
+                .iter()
-            .collect::<Vec<_>>()}
+                .map(|message| view! { <p>{message.clone()}</p> })
+                .collect::<Vec<_>>()}
+        </main>
     }
 }

sparse-server/src/cli/user.rs

@@ -24,30 +24,23 @@ async fn list_users(db: SqlitePool) -> anyhow::Result<ExitCode> {
     Ok(ExitCode::SUCCESS)
 }
 
-async fn create_user(db: SqlitePool, name: String) -> anyhow::Result<ExitCode> {
+fn get_password() -> anyhow::Result<String> {
-    let mut tx = db.begin().await?;
+    let password1 = rpassword::prompt_password("Enter new password: ")?;
+    let password2 = rpassword::prompt_password("Enter password again: ")?;
 
-    let previous_user_check = sqlx::query_scalar!(
+    if password1 != password2 {
-        "SELECT COUNT(*) FROM users WHERE user_name = ?",
+        Err(anyhow::anyhow!("Passwords do not match!"))?
-        name
-    )
-        .fetch_one(&mut *tx)
-        .await?;
-
-    if previous_user_check > 0 {
-        eprintln!("Error! User already exists!");
-        return Ok(ExitCode::FAILURE);
     }
 
-    let new_id = query!(
+    Ok(password1)
-        r#"INSERT INTO users (user_name, password_salt, password_hash) VALUES (?, "", "")"#,
+}
-        name
-    )
-        .execute(&mut *tx)
-        .await?
-        .last_insert_rowid();
 
-    reset_password(&mut *tx, new_id as i16).await?;
+async fn create_user(db: SqlitePool, name: String) -> anyhow::Result<ExitCode> {
+    let password = get_password()?;
+
+    let mut tx = db.begin().await?;
+
+    crate::db::user::create_user(&mut tx, name, password).await?;
 
     tx.commit().await?;
 
@@ -58,16 +51,11 @@ async fn create_user(db: SqlitePool, name: String) -> anyhow::Result<ExitCode> {
 
 async fn reset_password<'a, E>(db: E, id: i16) -> anyhow::Result<ExitCode>
 where
-    E: sqlx::Executor<'a, Database = sqlx::Sqlite>
+    E: sqlx::SqliteExecutor<'a>
 {
-    let password1 = rpassword::prompt_password("Enter new password: ")?;
+    let password = get_password()?;
-    let password2 = rpassword::prompt_password("Enter password again: ")?;
 
-    if password1 != password2 {
+    crate::db::user::reset_password(db, id, password).await?;
-        Err(anyhow::anyhow!("Passwords do not match!"))?
-    }
-
-    crate::db::user::reset_password(db, id, password1).await?;
 
     println!("Password set successfully!");
 

sparse-server/src/db/user.rs

@@ -1,12 +1,13 @@
-use sqlx::{sqlite::SqlitePool, Database};
 use pbkdf2::{pbkdf2_hmac_array, password_hash::{rand_core::OsRng, SaltString}};
 use sha2::Sha256;
 
+use crate::error::Error;
+
 const PASSWORD_ITERATIONS: u32 = 100_000;
 
-pub async fn reset_password<'a, E>(pool: E, id: i16, password: String) -> anyhow::Result<()>
+pub async fn reset_password<'a, E>(pool: E, id: i16, password: String) -> Result<(), crate::error::Error>
 where
-    E: sqlx::Executor<'a, Database = sqlx::Sqlite>
+    E: sqlx::SqliteExecutor<'a>
 {
     let salt = SaltString::generate(&mut OsRng);
 
@@ -30,3 +31,37 @@ where
 
     Ok(())
 }
+
+pub async fn create_user<'a, E>(acq: E, name: String, password: String) -> Result<(), crate::error::Error>
+where
+    E: sqlx::Acquire<'a, Database = sqlx::Sqlite>
+{
+    let mut tx = acq.begin().await?;
+
+    let previous_user_check = sqlx::query_scalar!(
+        "SELECT COUNT(*) FROM users WHERE user_name = ?",
+        name
+    )
+        .fetch_one(&mut *tx)
+        .await?;
+
+    if previous_user_check > 0 {
+        return Err(Error::UserCreate("User already exists".to_string()));
+    }
+
+    tracing::info!("Creating new user {}", name);
+
+    let new_id = sqlx::query!(
+        r#"INSERT INTO users (user_name, password_salt, password_hash) VALUES (?, "", "")"#,
+        name
+    )
+        .execute(&mut *tx)
+        .await?
+        .last_insert_rowid();
+
+    reset_password(&mut *tx, new_id as i16, password).await?;
+
+    tx.commit().await?;
+
+    Ok(())
+}

sparse-server/src/error.rs

@@ -0,0 +1,37 @@
+#[derive(Debug)]
+pub enum Error {
+    UserCreate(String),
+    #[cfg(feature = "ssr")]
+    Sqlx(sqlx::Error),
+}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Error::UserCreate(err) => {
+                write!(f, "user create error: {err}")
+            }
+            #[cfg(feature = "ssr")]
+            Error::Sqlx(err) => {
+                write!(f, "sqlx error: {err:?}")
+            }
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            #[cfg(feature = "ssr")]
+            Error::Sqlx(err) => Some(err),
+            _ => None,
+        }
+    }
+}
+
+#[cfg(feature = "ssr")]
+impl From<sqlx::Error> for Error {
+    fn from(err: sqlx::Error) -> Self {
+        Self::Sqlx(err)
+    }
+}

sparse-server/src/lib.rs

@@ -2,6 +2,8 @@ pub mod app;
 
 pub mod users;
 
+pub mod error;
+
 pub mod db;
 
 #[cfg(feature = "hydrate")]

sparse-server/src/main.rs

@@ -17,6 +17,8 @@ mod webserver;
 #[cfg(feature = "ssr")]
 pub mod users;
 
+pub mod error;
+
 pub mod db;
 
 #[cfg(feature = "ssr")]

sparse-server/src/users.rs

@@ -1,3 +1,4 @@
+use chrono::{DateTime, offset::Utc};
 use leptos::prelude::*;
 use serde::{Serialize, Deserialize};
 #[cfg(feature = "ssr")]
@@ -5,63 +6,334 @@ use {
     sqlx::SqlitePool
 };
 
+fn format_delta(time: chrono::TimeDelta) -> String {
+    let seconds = time.num_seconds();
+
+    match seconds {
+        0..=59 => format!("{} second{} ago", seconds, if seconds == 1 {""} else {"s"}),
+        60..=3599 => {
+            let minutes = seconds / 60;
+            format!("{} minute{} ago", minutes, if minutes == 1 {""} else {"s"})
+        }
+        3600..=86399 => {
+            let hours = seconds / 3600;
+            format!("{} hours{} ago", hours, if hours == 1 {""} else {"s"})
+        }
+        _ => {
+            let days = seconds / 86400;
+            format!("{} day{} ago", days, if days == 1 {""} else {"s"})
+        }
+    }
+}
+
+#[derive(Clone, Serialize, Deserialize)]
+pub struct DbUser {
+    user_id: i64,
+    user_name: String,
+    last_active: Option<i64>
+}
+
 #[derive(Clone, Serialize, Deserialize)]
 pub struct PubUser {
     user_id: i64,
-    user_name: String
+    user_name: String,
+    last_active: Option<DateTime<Utc>>
+}
+
+#[server]
+async fn delete_user(user_id: i64) -> Result<(), ServerFnError> {
+    let pool = expect_context::<SqlitePool>();
+
+    sqlx::query!(
+        "DELETE FROM users WHERE user_id = ?",
+        user_id
+    )
+        .execute(&pool)
+        .await?;
+
+    Ok(())
+}
+
+#[server]
+async fn reset_password(user_id: i64, password: String) -> Result<(), ServerFnError> {
+    let pool = expect_context::<SqlitePool>();
+
+    crate::db::user::reset_password(&pool, user_id as i16, password).await?;
+
+    Ok(())
+}
+
+#[component]
+pub fn RenderUser(refresh_user_list: Action<(), ()>, user: PubUser) -> impl IntoView {
+    use leptos_use::{use_interval, UseIntervalReturn};
+
+    let UseIntervalReturn { counter, .. } = use_interval(1000);
+    let (time_ago, set_time_ago) = signal(user.last_active.map(|active| format_delta(Utc::now() - active)));
+
+    Effect::watch(
+        move || counter.get(),
+        move |_, _, _| {
+            set_time_ago(user.last_active.map(|active| format_delta(Utc::now() - active)));
+        },
+        false
+    );
+
+    let dialog_ref = NodeRef::<leptos::html::Dialog>::new();
+    let new_password = RwSignal::new("".to_owned());
+
+    let error_dialog_ref = NodeRef::<leptos::html::Dialog>::new();
+    let (error_msg, set_error_msg) = signal(None::<String>);
+    let clear_error = move |_| {
+        set_error_msg(None);
+    };
+
+    let handle_delete = Action::new(move |&id: &i64| async move {
+        match delete_user(id).await {
+            Ok(()) => {
+                refresh_user_list.dispatch(());
+            }
+            Err(e) => {
+                set_error_msg(Some(e.to_string()));
+            }
+        }
+    });
+
+    let handle_reset = Action::new(move |info: &(i64, String)| {
+        let (id, password) = info.clone();
+
+        async move {
+            match reset_password(id, password).await {
+                Ok(()) => {}
+                Err(e) => {
+                    set_error_msg(Some(e.to_string()));
+                }
+            }
+        }
+    });
+
+    view! {
+        <dialog
+            node_ref=error_dialog_ref
+            on:close=clear_error
+        >
+            {error_msg}
+        </dialog>
+
+        <li>
+            {user.user_id}
+            ": "
+            {user.user_name}
+            {move || time_ago.get().map(|active| view! {
+                <span>
+                    "(last activity: "
+                    {active}
+                    ")"
+                </span>
+            })}
+
+            <button
+                on:click=move |_| {
+                    handle_delete.dispatch(user.user_id);
+                }
+            >
+                "Delete"
+            </button>
+
+            <button
+                on:click=move |_| {
+                    if let Some(dialog) = dialog_ref.get() {
+                        let _ = dialog.show_modal();
+                    }
+                }
+            >
+                "Reset password"
+            </button>
+            <dialog
+                node_ref=dialog_ref
+            >
+                <form
+                    on:submit=move |ev| {
+                        let _ = ev.prevent_default();
+
+                        handle_reset.dispatch((user.user_id, new_password.get()));
+
+                        new_password.set("".to_owned());
+
+                        if let Some(dialog) = dialog_ref.get() {
+                            let _ = dialog.close();
+                        }
+                    }
+                >
+                    <fieldset>
+                        <legend>"Reset password"</legend>
+                        <label>
+                            "New password"
+                        </label>
+                        <input
+                            bind:value=new_password
+                            type="password"
+                        />
+                        <div>
+                        </div>
+                        <input
+                            value="Submit"
+                            type="submit"
+                        />
+                    </fieldset>
+                </form>
+            </dialog>
+        </li>
+    }
 }
 
 #[server]
 async fn list_users() -> Result<Vec<PubUser>, ServerFnError> {
-    use leptos::server_fn::error::NoCustomError;
+    use futures::stream::StreamExt;
 
     let pool = expect_context::<SqlitePool>();
 
     let users = sqlx::query_as!(
-        PubUser,
+        DbUser,
-        "SELECT user_id, user_name FROM users"
+        "SELECT user_id, user_name, (SELECT MAX(expires) FROM sessions s WHERE s.user_id = u.user_id) as last_active FROM users u"
     )
-        .fetch_all(&pool)
+        .fetch(&pool)
-        .await?;
+        .map(|user| user.map(|u| PubUser {
+            user_id: u.user_id,
+            user_name: u.user_name,
+            last_active: u.last_active.map(|ts| DateTime::from_timestamp(ts, 0)).flatten()
+        }))
+        .collect::<Vec<Result<_, _>>>()
+        .await;
 
-    Ok(users)
+    let users: Result<Vec<_>, _> = users.into_iter().collect();
+
+    Ok(users?)
+}
+
+#[server]
+async fn add_user(name: String, password: String) -> Result<(), ServerFnError> {
+    let pool = expect_context::<SqlitePool>();
+
+    crate::db::user::create_user(&pool, name, password).await?;
+
+    Ok(())
 }
 
 #[component]
 pub fn UserView() -> impl IntoView {
     let user_list = Resource::new(|| (), |_| async move { list_users().await });
 
-    view! {
+    let modal_ref = NodeRef::<leptos::html::Dialog>::new();
-        <h1>"User list"</h1>
-        <Suspense
-            fallback=move || view! { <p>"Loading..."</p> }
-        >
-            <ErrorBoundary
-                fallback=|errors| view! {
-                    <p>"Errors loading users!"</p>
-                    <ul>
-                        {move || errors.get()
-                            .into_iter()
-                            .map(|(_, e)| view! { <li>{e.to_string()}</li> })
-                            .collect::<Vec<_>>()}
-                    </ul>
-                }
-            >
-                {move || Suspend::new(async move {
-                    let users_res = user_list.await;
 
-                    users_res.map(|users| view! {
+    let new_user_name = RwSignal::new("".to_owned());
+    let new_user_pass = RwSignal::new("".to_owned());
+    let (user_add_error, set_user_add_error) = signal(None::<String>);
+    let add_user_action = Action::new(move |_: &()| async move {
+        if let Some(modal) = modal_ref.get() {
+            let _ = modal.close();
+        }
+
+        match add_user(new_user_name.get(), new_user_pass.get()).await {
+            Ok(()) => {
+                user_list.refetch();
+            }
+            Err(e) => {
+                set_user_add_error(Some(format!("Error adding user! {e:?}")));
+            }
+        };
+
+        new_user_name.set("".to_owned());
+        new_user_pass.set("".to_owned());
+    });
+
+    let refresh_user_list = Action::new(move |_: &()| async move {
+        user_list.refetch();
+    });
+
+    view! {
+        <main class="users">
+            <input
+                type="button"
+                value="Add user"
+                on:click=move |_| {
+                    if let Some(modal) = modal_ref.get() {
+                        let _ = modal.show_modal();
+                    }
+                }
+            />
+            <dialog node_ref=modal_ref>
+                <form
+                    on:submit=move |ev| {
+                        let _ = ev.prevent_default();
+
+                        add_user_action.dispatch(());
+                    }
+                >
+                    <fieldset>
+                        <legend>"Add user"</legend>
+                        <label>
+                            "New user name"
+                        </label>
+                        <input
+                            bind:value=new_user_name
+                        />
+                        <label>
+                            "New password"
+                        </label>
+                        <input
+                            bind:value=new_user_pass
+                            type="password"
+                        />
+                        <div>
+                        </div>
+                        <input
+                            value="Submit"
+                            type="submit"
+                        />
+                    </fieldset>
+                </form>
+            </dialog>
+            {move || user_add_error.get().map(|err| view! {
+                <p>
+                    "Error adding user! "
+                    {err}
+                </p>
+            })}
+
+            <h2>"User list"</h2>
+            <Suspense
+                fallback=move || view! { <p>"Loading..."</p> }
+            >
+                <ErrorBoundary
+                    fallback=|errors| view! {
+                        <p>"Errors loading users!"</p>
                         <ul>
-                            {users
+                            {move || errors.get()
                                 .into_iter()
-                                .map(|user| view! {
+                                .map(|(_, e)| view! { <li>{e.to_string()}</li> })
-                                    <li>{user.user_id}": "{user.user_name}</li>
-                                })
                                 .collect::<Vec<_>>()}
                         </ul>
-                    })
+                    }
-                })}
+                >
-            </ErrorBoundary>
+                    {move || Suspend::new(async move {
-        </Suspense>
+                        let users_res = user_list.await;
+
+                        users_res.map(|users| view! {
+                            <ul>
+                                {users
+                                    .into_iter()
+                                    .map(|user| view! {
+                                        <RenderUser
+                                            refresh_user_list
+                                            user
+                                        />
+                                    })
+                                    .collect::<Vec<_>>()}
+                            </ul>
+                        })
+                    })}
+                </ErrorBoundary>
+            </Suspense>
+        </main>
     }
 }

sparse-server/src/webserver.rs

@@ -9,6 +9,7 @@ use sparse_server::app::*;
 
 
 pub async fn websocket(ws: axum::extract::ws::WebSocketUpgrade) -> axum::response::Response {
+    tracing::info!("Handling websocket request to /ws");
     ws.on_upgrade(handle_websocket)
 }
 

sparse-server/style/_main.scss

@@ -0,0 +1,3 @@
+main.main {
+
+}

sparse-server/style/_users.scss

@@ -0,0 +1,24 @@
+main.users {
+    dialog::backdrop {
+        background-color: #0008;
+    }
+
+    form fieldset {
+        display: grid;
+        grid-template-columns: 1fr 1fr;
+
+        * {
+            display: inline-block;
+            margin: 10px;
+        }
+    }
+
+    ul {
+        list-style-type: none;
+    }
+
+    li button {
+        margin-left: 10px;
+        margin-right: 0px;
+    }
+}

sparse-server/style/main.scss

@@ -1,4 +1,80 @@
-body {
+@use '_users';
+@use '_main';
+
+html, body {
 	font-family: sans-serif;
-	text-align: center;
+	background-color: #201f30;
-}
+
+	color: white;
+
+	margin: 0;
+	padding: 0;
+	width: 100%;
+	height: 100%;
+}
+
+body {
+	display: grid;
+	grid-template-columns: 350px 1fr;
+	grid-template-rows: 79px 1fr;
+	grid-template-areas:
+		"nav nav"
+		"beacons main";
+}
+
+nav {
+	background-color: #11111c;
+	grid-area: nav;
+	border-bottom: 1px solid #2e2e59;
+
+	h1 {
+		color: white;
+		text-decoration: none;
+		display: inline-block;
+		padding: 15px;
+		margin: 10px 5px;
+	}
+
+	a, a:visited {
+		color: white;
+		text-decoration: none;
+		display: inline-block;
+		padding: 10px;
+		margin: 10px 5px;
+	}
+
+	a:hover {
+		text-decoration: underline;
+	}
+}
+
+aside.beacons {
+	grid-area: beacons;
+	background-color: #11111c;
+	overflow-y: auto;
+	overflow-x: hidden;
+}
+
+main {
+	grid-area: main;
+
+	padding: 20px;
+
+	overflow: auto;
+}
+
+input[type="submit"],
+input[type="button"],
+button {
+	background-color: #fff;
+	border: 1px solid transparent;
+	cursor: pointer;
+	margin: 5px;
+	padding: 2px 4px;
+	border-radius: 2px;
+	box-shadow: #fff7 0 1px 0 inset;
+
+	&:hover {
+		background-color: #ccc;
+	}
+}