add: automatically stop all user ads when user cannot afford transfer

crates/app/src/public/html/economy/ad.lisp

@@ -48,7 +48,7 @@
 
             .display_tag {
                 position: absolute;
-                bottom: 0.5rem;
+                top: 0.5rem;
                 left: 0.5rem;
                 padding: 0.15rem 0.5rem;
                 background: hsla(0, 0%, 0%, 50%);
@@ -59,4 +59,5 @@
                 pointer-events: none;
                 border-radius: 0.4rem;
                 box-shadow: 0 0 2px hsla(0, 0%, 0%, 25%);
+                opacity: 25%;
             }"))))

crates/app/src/routes/api/v1/ads.rs

@@ -17,7 +17,7 @@ use tetratto_core::model::{
 };
 use super::{CreateAd, UpdateAdIsRunning};
 
-const MAXIMUM_AD_FILE_SIZE: usize = 4_194_304;
+const MAXIMUM_AD_FILE_SIZE: usize = 2_097_152;
 
 pub async fn create_request(
     jar: CookieJar,
@@ -104,6 +104,15 @@ pub async fn update_is_running_request(
         None => return Json(Error::NotAllowed.into()),
     };
 
+    if user.coins < 50 {
+        return Json(
+            Error::MiscError(
+                "You must have a minimum of 50 coins in your balance to run ads".to_string(),
+            )
+            .into(),
+        );
+    }
+
     match data
         .update_ad_is_running(id, &user, if req.is_running { 1 } else { 0 })
         .await

crates/app/src/routes/pages/economy.rs

@@ -257,7 +257,6 @@ pub async fn random_ad_request(
     let ad = match data.0.random_ad_charged(props.size.clone()).await {
         Ok(x) => x,
         Err(_) => UserAd {
-            // polyfill ad
             id: 0,
             created: 0,
             upload_id: 0,

crates/core/src/database/ads.rs

@@ -56,6 +56,30 @@ impl DataManager {
         Ok(res.unwrap())
     }
 
+    /// Disable all ads by the given user.
+    ///
+    /// # Arguments
+    /// * `id` - the ID of the user to kill ads from
+    pub async fn stop_all_ads_by_user(&self, id: usize) -> Result<Vec<UserAd>> {
+        let conn = match self.0.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = query_rows!(
+            &conn,
+            "UPDATE ads SET is_running = 0 WHERE owner = $1",
+            &[&(id as i64)],
+            |x| { Self::get_ad_from_row(x) }
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        Ok(res.unwrap())
+    }
+
     /// Create a new ad in the database.
     ///
     /// # Arguments
@@ -161,7 +185,7 @@ impl DataManager {
 
     const MINIMUM_DELTA_FOR_CHARGE: usize = 604_800_000; // 7 days
     /// The amount charged to a [`UserAd`] owner each day the ad is running (and is pulled from the pool).
-    pub const AD_RUN_CHARGE: i32 = 50;
+    pub const AD_RUN_CHARGE: i32 = 25;
     /// The amount charged to a [`UserAd`] owner each time the ad is clicked.
     pub const AD_CLICK_CHARGE: i32 = 2;
 
@@ -173,17 +197,23 @@ impl DataManager {
         let delta = now - ad.last_charge_time;
 
         if delta >= Self::MINIMUM_DELTA_FOR_CHARGE {
-            self.create_transfer(
-                &mut CoinTransfer::new(
-                    ad.owner,
-                    self.0.0.system_user,
-                    Self::AD_RUN_CHARGE,
-                    CoinTransferMethod::Transfer,
-                    CoinTransferSource::AdCharge,
-                ),
-                true,
-            )
-            .await?;
+            if let Err(e) = self
+                .create_transfer(
+                    &mut CoinTransfer::new(
+                        ad.owner,
+                        self.0.0.system_user,
+                        Self::AD_RUN_CHARGE,
+                        CoinTransferMethod::Transfer,
+                        CoinTransferSource::AdCharge,
+                    ),
+                    true,
+                )
+                .await
+            {
+                // boo user cannot afford to keep running their ads
+                self.stop_all_ads_by_user(ad.owner).await?;
+                return Err(e);
+            };
 
             self.update_ad_last_charge_time(ad.id, now as i64).await?;
         }
@@ -212,17 +242,22 @@ impl DataManager {
         }
 
         // create click transfer
-        self.create_transfer(
-            &mut CoinTransfer::new(
-                ad.owner,
-                host,
-                Self::AD_CLICK_CHARGE,
-                CoinTransferMethod::Transfer,
-                CoinTransferSource::AdClick,
-            ),
-            true,
-        )
-        .await?;
+        if let Err(e) = self
+            .create_transfer(
+                &mut CoinTransfer::new(
+                    ad.owner,
+                    host,
+                    Self::AD_CLICK_CHARGE,
+                    CoinTransferMethod::Transfer,
+                    CoinTransferSource::AdClick,
+                ),
+                true,
+            )
+            .await
+        {
+            self.stop_all_ads_by_user(ad.owner).await?;
+            return Err(e);
+        }
 
         // return
         Ok(ad.target)