fix: derive missing A3 batch metrics

src/shared/backend-metrics-client.ts

@@ -76,11 +76,13 @@ export function mapBackendMetricsSearchResponse(payload: unknown): BackendMetric
 
     return [
       {
-        a3IncreaseCount: formatDecimalValue(row.avg_a3_increase_cnt),
+        a3IncreaseCount: formatDecimalValue(
+          readAverageA3IncreaseCount(row)
+        ),
         afterViewSearchCount: formatDecimalValue(row.avg_after_view_search_cnt),
         afterViewSearchRate: formatRateValue(row.avg_after_view_search_rate),
         cpSearch: formatDecimalValue(row.cp_search),
-        cpa3: formatDecimalValue(row.cpa3),
+        cpa3: formatDecimalValue(readCpa3Value(row)),
         newA3Rate: formatRateValue(row.avg_new_a3_rate),
         starId: row.star_id
       }
@@ -88,6 +90,84 @@ export function mapBackendMetricsSearchResponse(payload: unknown): BackendMetric
   });
 }
 
+function readAverageA3IncreaseCount(row: Record<string, unknown>): number | null {
+  const directAverage = readFiniteNumber(row.avg_a3_increase_cnt);
+  if (directAverage !== null) {
+    return directAverage;
+  }
+
+  const totalNewA3 = readTotalNewA3Value(row);
+  const videoCount =
+    readFiniteNumber(row.video_count) ?? readNestedVideoCount(row.videos);
+  if (totalNewA3 === null || videoCount === null || videoCount <= 0) {
+    return null;
+  }
+
+  return totalNewA3 / videoCount;
+}
+
+function readCpa3Value(row: Record<string, unknown>): number | null {
+  const directCpa3 = readFiniteNumber(row.cpa3);
+  if (directCpa3 !== null) {
+    return directCpa3;
+  }
+
+  const totalCost = readFiniteNumber(row.total_estimated_video_cost);
+  const totalNewA3 = readTotalNewA3Value(row);
+  if (totalCost === null || totalNewA3 === null || totalNewA3 <= 0) {
+    return null;
+  }
+
+  return totalCost / totalNewA3;
+}
+
+function readTotalNewA3Value(row: Record<string, unknown>): number | null {
+  const derivedFromTotals = deriveTotalNewA3FromTotals(row);
+  if (derivedFromTotals !== null) {
+    return derivedFromTotals;
+  }
+
+  return deriveTotalNewA3FromVideos(row.videos);
+}
+
+function deriveTotalNewA3FromTotals(row: Record<string, unknown>): number | null {
+  const totalPlayCount = readFiniteNumber(row.total_play_cnt);
+  const averageNewA3Rate = readFiniteNumber(row.avg_new_a3_rate);
+  if (totalPlayCount === null || averageNewA3Rate === null) {
+    return null;
+  }
+
+  return totalPlayCount * averageNewA3Rate;
+}
+
+function deriveTotalNewA3FromVideos(value: unknown): number | null {
+  if (!Array.isArray(value)) {
+    return null;
+  }
+
+  let total = 0;
+  let hasFiniteValue = false;
+  value.forEach((video) => {
+    if (!isRecord(video)) {
+      return;
+    }
+
+    const newA3 = readFiniteNumber(video.new_a3);
+    if (newA3 === null) {
+      return;
+    }
+
+    hasFiniteValue = true;
+    total += newA3;
+  });
+
+  return hasFiniteValue ? total : null;
+}
+
+function readNestedVideoCount(value: unknown): number | null {
+  return Array.isArray(value) ? value.length : null;
+}
+
 function readResponseRows(payload: unknown): unknown[] | null {
   if (!isRecord(payload) || payload.success !== true) {
     return null;
@@ -130,3 +210,8 @@ async function defaultFetch(input: string, init?: RequestInit) {
 function isRecord(value: unknown): value is Record<string, unknown> {
   return typeof value === "object" && value !== null;
 }
+
+function readFiniteNumber(value: unknown): number | null {
+  const number = typeof value === "number" ? value : Number(value);
+  return Number.isFinite(number) ? number : null;
+}

tests/backend-metrics-client.test.ts

@@ -63,6 +63,40 @@ describe("backend-metrics-client", () => {
     ]);
   });
 
+  test("derives A3 count and CPA3 from the live aggregate response shape", () => {
+    expect(
+      mapBackendMetricsSearchResponse({
+        data: {
+          data: [
+            {
+              avg_after_view_search_cnt: 25982,
+              avg_after_view_search_rate: 0.0010872130261527625,
+              avg_new_a3_rate: 0.11075860229946684,
+              cp_search: 21.168501270110077,
+              cpe: 0.630604497471276,
+              cpm: 23.014670324994974,
+              star_id: "7021245050621263906",
+              total_estimated_video_cost: 1100000,
+              total_play_cnt: 47795601,
+              video_count: 2
+            }
+          ]
+        },
+        success: true
+      })
+    ).toEqual([
+      {
+        a3IncreaseCount: "2,646,886.98",
+        afterViewSearchCount: "25,982.00",
+        afterViewSearchRate: "0.11%",
+        cpSearch: "21.17",
+        cpa3: "0.21",
+        newA3Rate: "11.08%",
+        starId: "7021245050621263906"
+      }
+    ]);
+  });
+
   test("posts star ids with bearer auth when searching backend metrics", async () => {
     const fetchImpl = async (_input: string, init?: RequestInit) => ({
       json: async () => ({