chore(sentry): make sampling config environment-driven

src/utils/__tests__/sentry-config.test.ts

@@ -0,0 +1,58 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+
+import {
+  getSentryReplaySessionSampleRate,
+  getSharedSentryOptions,
+  readBoolean,
+  readSampleRate,
+} from "../sentry-config";
+
+describe("sentry config", () => {
+  afterEach(() => {
+    vi.unstubAllEnvs();
+  });
+
+  it("uses conservative production defaults", () => {
+    vi.stubEnv("NEXT_PUBLIC_APP_ENV", "production");
+
+    expect(getSharedSentryOptions()).toMatchObject({
+      tracesSampleRate: 0.1,
+      enableLogs: true,
+      sendDefaultPii: false,
+    });
+    expect(getSentryReplaySessionSampleRate()).toBe(0.01);
+  });
+
+  it("keeps non-production sampling high for local debugging", () => {
+    vi.stubEnv("NEXT_PUBLIC_APP_ENV", "development");
+
+    expect(getSharedSentryOptions().tracesSampleRate).toBe(1);
+    expect(getSentryReplaySessionSampleRate()).toBe(0.1);
+  });
+
+  it("allows valid environment overrides", () => {
+    vi.stubEnv("NEXT_PUBLIC_APP_ENV", "production");
+    vi.stubEnv("NEXT_PUBLIC_SENTRY_TRACES_SAMPLE_RATE", "0.25");
+    vi.stubEnv("NEXT_PUBLIC_SENTRY_ENABLE_LOGS", "false");
+    vi.stubEnv("NEXT_PUBLIC_SENTRY_SEND_DEFAULT_PII", "true");
+    vi.stubEnv("NEXT_PUBLIC_SENTRY_REPLAYS_SESSION_SAMPLE_RATE", "0.05");
+
+    expect(getSharedSentryOptions()).toMatchObject({
+      tracesSampleRate: 0.25,
+      enableLogs: false,
+      sendDefaultPii: true,
+    });
+    expect(getSentryReplaySessionSampleRate()).toBe(0.05);
+  });
+
+  it("falls back for invalid sample rates and booleans", () => {
+    expect(readSampleRate("1.2", 0.1)).toBe(0.1);
+    expect(readSampleRate("-0.1", 0.1)).toBe(0.1);
+    expect(readSampleRate("abc", 0.1)).toBe(0.1);
+    expect(readSampleRate("0.5", 0.1)).toBe(0.5);
+
+    expect(readBoolean("maybe", false)).toBe(false);
+    expect(readBoolean("yes", false)).toBe(true);
+    expect(readBoolean("off", true)).toBe(false);
+  });
+});