Demo flag

README.md

@@ -26,7 +26,11 @@ This project is packaged with Nix flakes. To install and run it:
 
    Or run it directly:
    ```bash
+   # Run with a persistent database
    nix run git+https://code.everydayimshuflin.com/greg/rss-reader -- -d /path/to/database.sqlite
+
+   # Or try it out in demo mode (uses in-memory database)
+   nix run git+https://code.everydayimshuflin.com/greg/rss-reader -- --demo
    ```
 
 ### Development
@@ -46,7 +50,19 @@ To set up a development environment:
 
 3. Run the application:
    ```bash
+   # Run with a persistent database
    cargo run -- -d rss-reader.db
+
+   # Or try it out in demo mode (uses in-memory database)
+   cargo run -- --demo
    ```
 
-The application will be available at `http://localhost:8000`. On first run, you'll be prompted to create an admin user. 
+The application will be available at `http://localhost:8000`. 
+
+### Demo Mode
+
+When running in demo mode (using the `--demo` flag), the application will:
+- Use an in-memory SQLite database that is cleared when the application stops
+- Create two pre-configured users:
+  - Admin user: username `admin`, password `admin`
+  - Regular user: username `demo`, password `demo` 

src/demo.rs

@@ -0,0 +1,46 @@
+use chrono;
+use sqlx;
+use uuid::Uuid;
+
+pub async fn setup_demo_data(pool: &sqlx::SqlitePool) {
+    // Create admin user
+    let admin_id = Uuid::new_v4().to_string();
+    let admin_hash = bcrypt::hash("admin", bcrypt::DEFAULT_COST).unwrap();
+    let now = chrono::Utc::now().to_rfc3339();
+
+    sqlx::query(
+        "INSERT INTO users (id, username, password_hash, email, display_name, created_at, admin) 
+         VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7)",
+    )
+    .bind(&admin_id)
+    .bind("admin")
+    .bind(&admin_hash)
+    .bind(Option::<String>::None)
+    .bind(Option::<String>::None)
+    .bind(&now)
+    .bind(true)
+    .execute(pool)
+    .await
+    .expect("Failed to create admin user");
+
+    // Create demo user
+    let demo_id = Uuid::new_v4().to_string();
+    let demo_hash = bcrypt::hash("demo", bcrypt::DEFAULT_COST).unwrap();
+
+    sqlx::query(
+        "INSERT INTO users (id, username, password_hash, email, display_name, created_at, admin) 
+         VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7)",
+    )
+    .bind(&demo_id)
+    .bind("demo")
+    .bind(&demo_hash)
+    .bind(Option::<String>::None)
+    .bind(Option::<String>::None)
+    .bind(&now)
+    .bind(false)
+    .execute(pool)
+    .await
+    .expect("Failed to create demo user");
+
+    println!("Successfully set up demo data");
+}

src/main.rs

@@ -3,6 +3,7 @@ extern crate rocket;
 
 use clap::Parser;
 
+mod demo;
 mod feed_utils;
 mod feeds;
 mod poll;
@@ -20,7 +21,11 @@ use user::AuthenticatedUser;
 struct Args {
     /// Path to the SQLite database file
     #[arg(short, long)]
-    database: String,
+    database: Option<String>,
+
+    /// Run in demo mode with an in-memory database
+    #[arg(long)]
+    demo: bool,
 }
 
 #[derive(Database)]
@@ -58,15 +63,21 @@ fn login() -> Template {
 fn rocket() -> _ {
     let args = Args::parse();
 
-    let db_url = format!("sqlite:{}", args.database);
+    let db_url = if args.demo {
+        "sqlite::memory:".to_string()
+    } else {
+        let database = args
+            .database
+            .expect("Database path is required when not in demo mode");
+        // Check if database file exists, create it if it doesn't
+        if !std::path::Path::new(&database).exists() {
+            use std::fs::File;
+            File::create(&database).expect("Failed to create database file");
+        }
+        format!("sqlite:{}", database)
+    };
 
-    // Check if database file exists, create it if it doesn't
-    if !std::path::Path::new(&args.database).exists() {
-        use std::fs::File;
-        File::create(&args.database).expect("Failed to create database file");
-    }
-
-    // Run migrations before starting the server
+    // Run migrations and setup demo data if needed
     let rt = tokio::runtime::Runtime::new().unwrap();
     rt.block_on(async {
         let pool = sqlx::SqlitePool::connect(&db_url).await.unwrap();
@@ -74,12 +85,13 @@ fn rocket() -> _ {
             .run(&pool)
             .await
             .expect("Failed to run database migrations");
+
+        if args.demo {
+            demo::setup_demo_data(&pool).await;
+        }
     });
 
-    let figment = rocket::Config::figment().merge((
-        "databases.rss_data.url",
-        format!("sqlite:{}", args.database),
-    ));
+    let figment = rocket::Config::figment().merge(("databases.rss_data.url", db_url));
 
     rocket::custom(figment)
         .mount(