t3-code-android-nightly/.repos/alchemy-effect/packages/alchemy/test/AWS/AMP/Bindings.test.ts

import * as AWS from "@/AWS";
import * as Core from "@/Test/Core";
import * as Test from "@/Test/Alchemy";
import * as amp from "@distilled.cloud/aws/amp";
import { describe, expect } from "alchemy-test";
import * as Data from "effect/Data";
import * as Effect from "effect/Effect";
import * as Schedule from "effect/Schedule";
import * as HttpClient from "effect/http/HttpClient";
import * as HttpClientRequest from "effect/http/HttpClientRequest";
import AmpTestFunctionLive, { AmpTestFunction } from "./handler";

const testOptions = { providers: AWS.providers() };
const { test, beforeAll, afterAll } = Test.make(testOptions);
const sharedStack = Core.scratchStack(testOptions, "AMPBindings");

// Deterministic metric name — same on every run of this test file.
const METRIC = "alchemy_amp_bindings_test_total";

const readinessPolicy = Schedule.max([
  Schedule.fixed("2 seconds"),
  Schedule.recurs(75),
]);

let baseUrl: string;

class TransientUpstream extends Data.TaggedError("TransientUpstream")<{
  readonly status: number;
  readonly body: string;
}> {}

// Retry transient 5xx (cold re-init, IAM propagation on a fresh deploy —
// aps permissions can take a few seconds to become effective).
const send = (request: HttpClientRequest.HttpClientRequest) =>
  HttpClient.execute(request).pipe(
    Effect.flatMap((response) =>
      response.status >= 500
        ? response.text.pipe(
            Effect.flatMap((body) =>
              Effect.fail(
                new TransientUpstream({ status: response.status, body }),
              ),
            ),
          )
        : Effect.succeed(response),
    ),
    Effect.retry({
      while: (e) => e._tag === "TransientUpstream",
      schedule: Schedule.max([
        Schedule.exponential("1 second"),
        Schedule.recurs(6),
      ]),
    }),
  );

const getJson = (path: string) =>
  send(HttpClientRequest.get(`${baseUrl}${path}`)).pipe(
    Effect.flatMap((r) => r.json),
  );

describe(
  "AMP Bindings",
  { tags: ["provider:aws", "provider:aws:amp", "provider:aws:lambda", "live"] },
  () => {
    beforeAll(
      Effect.gen(function* () {
        yield* Effect.logInfo("AMP test setup: destroying previous resources");
        yield* sharedStack.destroy();

        yield* Effect.logInfo("AMP test setup: deploying fixture");
        const { functionUrl } = yield* sharedStack.deploy(
          Effect.gen(function* () {
            return yield* AmpTestFunction;
          }).pipe(Effect.provide(AmpTestFunctionLive)),
        );

        expect(functionUrl).toBeTruthy();
        baseUrl = functionUrl!.replace(/\/+$/, "");
        const readinessUrl = `${baseUrl}/health`;

        yield* Effect.logInfo(
          `AMP test setup: probing readiness at ${readinessUrl}`,
        );
        yield* HttpClient.get(readinessUrl).pipe(
          Effect.flatMap((response) =>
            response.status === 200
              ? Effect.succeed(response)
              : Effect.fail(
                  new Error(`Function not ready: ${response.status}`),
                ),
          ),
          Effect.tapError((error) =>
            Effect.logWarning(
              `AMP test setup: fixture not ready yet (${String(error)})`,
            ),
          ),
          Effect.retry({ schedule: readinessPolicy }),
        );
        yield* Effect.logInfo("AMP test setup: fixture responded successfully");
      }),
      { timeout: 240_000 },
    );

    afterAll(
      Effect.gen(function* () {
        yield* sharedStack.destroy();
        // Assert gone: no workspace with the fixture's alias survives the
        // destroy (AMP deletes asynchronously — DELETING counts as gone; a
        // fresh run's leading destroy would reconcile any remnant anyway).
        // The out-of-band distilled call needs the AWS providers layer
        // (credentials), which afterAll does not provide by default.
        const { workspaces } = yield* Core.withProviders(
          amp.listWorkspaces({ alias: "alchemy-test-amp-bindings" }),
          testOptions,
          "AMPBindings",
        );
        const alive = workspaces.filter(
          (w) =>
            w.status.statusCode !== "DELETING" &&
            w.status.statusCode !== "DELETED",
        );
        expect(alive).toHaveLength(0);
      }),
      { timeout: 120_000 },
    );

    describe("RemoteWrite", () => {
      test.provider("pushes a sample into the workspace", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* send(
            HttpClientRequest.bodyJsonUnsafe(
              HttpClientRequest.post(`${baseUrl}/remote-write`),
              { name: METRIC, labels: { source: "bindings-test" }, value: 1 },
            ),
          ).pipe(Effect.flatMap((r) => r.json))) as { success: boolean };
          expect(body.success).toBe(true);
        }),
      );
    });

    describe("QueryMetrics", () => {
      test.provider(
        "instant query reads back the remote-written sample",
        (_stack) =>
          Effect.gen(function* () {
            // Write, then poll the query API until ingestion catches up.
            yield* send(
              HttpClientRequest.bodyJsonUnsafe(
                HttpClientRequest.post(`${baseUrl}/remote-write`),
                { name: METRIC, labels: { source: "bindings-test" }, value: 2 },
              ),
            );

            const body = (yield* getJson(`/query?query=${METRIC}`).pipe(
              Effect.repeat({
                schedule: Schedule.spaced("3 seconds"),
                until: (b): boolean => {
                  const result = (
                    b as {
                      result: { resultType: string; result: unknown[] };
                    }
                  ).result;
                  return (
                    result.resultType === "vector" && result.result.length > 0
                  );
                },
                times: 20,
              }),
            )) as {
              result: {
                resultType: string;
                result: Array<{
                  metric: Record<string, string>;
                  value: [number, string];
                }>;
              };
            };

            expect(body.result.resultType).toBe("vector");
            const sample = body.result.result.find(
              (s) => s.metric.__name__ === METRIC,
            );
            expect(sample).toBeDefined();
            expect(sample!.metric.source).toBe("bindings-test");
            expect(Number(sample!.value[1])).toBeGreaterThan(0);
          }),
        { timeout: 120_000 },
      );

      test.provider("range query returns a matrix", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* getJson(`/query-range?query=${METRIC}`)) as {
            result: { resultType: string };
          };
          expect(body.result.resultType).toBe("matrix");
        }),
      );
    });

    describe("GetLabels", () => {
      test.provider("lists label names", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* getJson("/labels")) as { names: string[] };
          expect(body.names).toContain("__name__");
        }),
      );

      test.provider("lists metric names via label values", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* getJson("/label-values?label=__name__")) as {
            values: string[];
          };
          expect(body.values).toContain(METRIC);
        }),
      );
    });

    describe("GetSeries", () => {
      test.provider("matches the remote-written series", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* getJson(
            `/series?match=${encodeURIComponent(`{__name__="${METRIC}"}`)}`,
          )) as { series: Array<Record<string, string>> };
          const series = body.series.find((s) => s.__name__ === METRIC);
          expect(series).toBeDefined();
          expect(series!.source).toBe("bindings-test");
        }),
      );
    });

    describe("DescribeWorkspace", () => {
      test.provider("describes the bound workspace", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* getJson("/describe-workspace")) as {
            workspaceId: string;
            status: string;
          };
          expect(body.workspaceId).toMatch(/^ws-/);
          expect(body.status).toBe("ACTIVE");
        }),
      );
    });

    describe("ListWorkspaces", () => {
      test.provider("lists workspaces including the bound one", (_stack) =>
        Effect.gen(function* () {
          const described = (yield* getJson("/describe-workspace")) as {
            workspaceId: string;
          };
          const body = (yield* getJson("/list-workspaces")) as {
            workspaceIds: string[];
          };
          expect(body.workspaceIds).toContain(described.workspaceId);
        }),
      );
    });

    describe("GetDefaultScraperConfiguration", () => {
      test.provider("reads the default scraper configuration YAML", (_stack) =>
        Effect.gen(function* () {
          const body = (yield* getJson("/default-scraper-config")) as {
            configuration: string;
          };
          // The default configuration is Prometheus scrape-config YAML.
          expect(body.configuration).toContain("scrape_configs");
        }),
      );
    });

    describe("GetMetricMetadata", () => {
      test.provider("reads metric metadata", (_stack) =>
        Effect.gen(function* () {
          // Remote-write carries no metadata, so the map may be empty — the
          // assertion is that the signed call succeeds and returns an object.
          const body = (yield* getJson("/metadata")) as {
            metadata: Record<string, unknown>;
          };
          expect(typeof body.metadata).toBe("object");
        }),
      );
    });
  },
);