feat: add market result store

tests/result-store.test.ts

@@ -0,0 +1,101 @@
+import { describe, expect, test } from "vitest";
+
+import { createMarketResultStore } from "../src/content/market/result-store";
+
+describe("result-store", () => {
+  test("creates loading records from current-page rows", () => {
+    const store = createMarketResultStore();
+
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice",
+      price21To60s: "450000"
+    });
+    store.setAuthorLoading("123");
+
+    expect(store.getRecord("123")).toMatchObject({
+      authorId: "123",
+      authorName: "Alice",
+      price21To60s: "450000",
+      status: "loading"
+    });
+  });
+
+  test("updates one author to success", () => {
+    const store = createMarketResultStore();
+
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice"
+    });
+    store.setAuthorSuccess("123", {
+      singleVideoAfterSearchRate: "<0.02%",
+      personalVideoAfterSearchRate: "0.02% - 0.1%"
+    });
+
+    expect(store.getRecord("123")).toMatchObject({
+      status: "success",
+      rates: {
+        singleVideoAfterSearchRate: "<0.02%",
+        personalVideoAfterSearchRate: "0.02% - 0.1%"
+      }
+    });
+  });
+
+  test("preserves failed authors instead of dropping them", () => {
+    const store = createMarketResultStore();
+
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice"
+    });
+    store.setAuthorFailed("123", "request-failed");
+
+    expect(store.listRecords()).toHaveLength(1);
+    expect(store.getRecord("123")).toMatchObject({
+      status: "failed",
+      failureReason: "request-failed"
+    });
+  });
+
+  test("dedupes the same author across repeated page writes", () => {
+    const store = createMarketResultStore();
+
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice",
+      price21To60s: "450000"
+    });
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice v2",
+      price21To60s: "470000"
+    });
+
+    expect(store.listRecords()).toHaveLength(1);
+  });
+
+  test("keeps the original major fields stable after repeated writes", () => {
+    const store = createMarketResultStore();
+
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice",
+      location: "Hangzhou",
+      price21To60s: "450000"
+    });
+    store.upsertMarketRow({
+      authorId: "123",
+      authorName: "Alice v2",
+      location: "Shanghai",
+      price21To60s: "470000"
+    });
+
+    expect(store.getRecord("123")).toMatchObject({
+      authorId: "123",
+      authorName: "Alice",
+      location: "Hangzhou",
+      price21To60s: "450000"
+    });
+  });
+});