dynamic prices with dicounts

src/controllers/admin_discounts.rs

@@ -25,6 +25,7 @@ use crate::{
     shared::{
         guard,
         money::{format_bp, format_price, parse_percent, parse_price_to_cents},
+        pricing,
     },
 };
 
@@ -89,9 +90,9 @@ fn percent_off(regular_cents: i64, sale_cents: i64) -> i64 {
     off.round() as i64
 }
 
-/// Row shape for the discounts list, carrying both audiences' values so the
-/// template can show whichever tab is active.
-fn list_row(product: &products::Model) -> serde_json::Value {
+/// Row shape for the discounts list, carrying both audiences' per-product values
+/// plus the resolved effective price for the active tab (after profiles).
+fn list_row(product: &products::Model, effective: &pricing::PricedProduct) -> serde_json::Value {
     json!({
         "id": product.id,
         "name": product.name,
@@ -106,6 +107,11 @@ fn list_row(product: &products::Model) -> serde_json::Value {
         "business_percent_off": product
             .business_sale_price_cents
             .map(|sale| percent_off(product.price_cents, sale)),
+        // The price this audience actually pays after the per-product discount
+        // and any applied profiles.
+        "effective_price": format_price(effective.price_cents),
+        "effective_reduced": effective.is_reduced(),
+        "effective_percent_off": percent_off(product.price_cents, effective.price_cents),
     })
 }
 
@@ -123,7 +129,12 @@ async fn index(
         .order_by_asc(products::Column::Name)
         .all(&ctx.db)
         .await?;
-    let rows: Vec<serde_json::Value> = list.iter().map(list_row).collect();
+    let effective = pricing::audience_price_many(&ctx, &list, audience).await?;
+    let rows: Vec<serde_json::Value> = list
+        .iter()
+        .zip(effective.iter())
+        .map(|(product, priced)| list_row(product, priced))
+        .collect();
 
     // Profiles applied globally to this audience, plus all profiles to choose from.
     let assigned: HashSet<i32> = audience_discount_profiles::Entity::find()