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

import * as AWS from "@/AWS";
import * as Core from "@/Test/Core";
import * as Test from "@/Test/Alchemy";
import * as eventbridge from "@distilled.cloud/aws/eventbridge";
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 IvsTestFunctionLive, { IvsTestFunction } from "./fixtures/handler";

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

// Lambda function URL cold-start (DNS, IAM propagation, init) can take well
// over 60s on a fresh deploy.
const readinessPolicy = Schedule.max([
  Schedule.fixed("2 seconds"),
  Schedule.recurs(75),
]);

let baseUrl: string;
let functionArn: string;

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

// The shared Lambda fixture occasionally answers a transient 5xx under load
// (cold re-init, IAM propagation on the freshly attached policy that the
// handler's `Effect.orDie` surfaces as a 500). Retry only 5xx; a genuine
// 4xx/assertion failure surfaces immediately.
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("500 millis"),
        Schedule.recurs(6),
      ]),
    }),
  );

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

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

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

        yield* Effect.logInfo("IVS test setup: deploying fixture");
        const attrs = yield* sharedStack.deploy(
          Effect.gen(function* () {
            return yield* IvsTestFunction;
          }).pipe(Effect.provide(IvsTestFunctionLive)),
        );

        expect(attrs.functionUrl).toBeTruthy();
        baseUrl = attrs.functionUrl!.replace(/\/+$/, "");
        functionArn = attrs.functionArn;

        const readinessUrl = `${baseUrl}/bindings`;
        yield* Effect.logInfo(
          `IVS 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: ${response.status}`),
                ),
          ),
          Effect.tapError((error) =>
            Effect.logWarning(
              `IVS test setup: fixture not ready yet (${String(error)})`,
            ),
          ),
          Effect.retry({ schedule: readinessPolicy }),
        );
      }),
      { timeout: 240_000 },
    );

    afterAll(sharedStack.destroy(), { timeout: 120_000 });

    describe("binding registration", () => {
      test.provider("all nine capabilities initialize in the runtime", () =>
        Effect.gen(function* () {
          const response = (yield* getJson("/bindings")) as { bound: string[] };
          expect(response.bound).toHaveLength(9);
        }),
      );
    });

    describe("GetStream", () => {
      test.provider(
        "an idle channel answers with the typed ChannelNotBroadcasting",
        () =>
          Effect.gen(function* () {
            const response = (yield* getJson("/stream")) as {
              live: boolean;
              viewers: number;
            };
            expect(response.live).toBe(false);
            expect(response.viewers).toBe(0);
          }),
      );
    });

    describe("GetStreamSession", () => {
      test.provider("a never-broadcast channel has no latest session", () =>
        Effect.gen(function* () {
          const response = (yield* getJson("/session")) as { found: boolean };
          expect(response.found).toBe(false);
        }),
      );
    });

    describe("ListStreamSessions", () => {
      test.provider("the idle channel's session history is empty", () =>
        Effect.gen(function* () {
          const response = (yield* getJson("/sessions")) as { count: number };
          expect(response.count).toBe(0);
        }),
      );
    });

    describe("ListStreams", () => {
      test.provider("account-level live-stream enumeration succeeds", () =>
        Effect.gen(function* () {
          const response = (yield* getJson("/streams")) as { count: number };
          expect(response.count).toBeGreaterThanOrEqual(0);
        }),
      );
    });

    describe("PutMetadata", () => {
      test.provider(
        "inserting metadata into an idle stream is the typed ChannelNotBroadcasting",
        () =>
          Effect.gen(function* () {
            const response = (yield* postJson("/metadata")) as {
              inserted: boolean;
              tag?: string;
            };
            expect(response.inserted).toBe(false);
            expect(response.tag).toBe("ChannelNotBroadcasting");
          }),
      );
    });

    describe("StopStream", () => {
      test.provider(
        "stopping an idle channel is the typed ChannelNotBroadcasting",
        () =>
          Effect.gen(function* () {
            const response = (yield* postJson("/stop")) as {
              stopped: boolean;
              tag?: string;
            };
            expect(response.stopped).toBe(false);
            expect(response.tag).toBe("ChannelNotBroadcasting");
          }),
      );
    });

    describe("StartViewerSessionRevocation", () => {
      test.provider("revoking a viewer session succeeds", () =>
        Effect.gen(function* () {
          const response = (yield* postJson("/revoke")) as {
            ok: boolean;
            tag?: string;
          };
          expect(response.ok).toBe(true);
        }),
      );
    });

    describe("InsertAdBreak", () => {
      test.provider(
        "inserting an ad break into an idle stream is a typed failure",
        () =>
          Effect.gen(function* () {
            const response = (yield* postJson("/adbreak")) as {
              inserted: boolean;
              tag?: string;
            };
            expect(response.inserted).toBe(false);
            expect([
              "ChannelNotBroadcasting",
              "ValidationException",
              "ConflictException",
            ]).toContain(response.tag);
          }),
      );
    });

    describe("BatchStartViewerSessionRevocation", () => {
      test.provider(
        "batch-revoking a viewer session reports no per-pair errors",
        () =>
          Effect.gen(function* () {
            const response = (yield* postJson("/revoke-batch")) as {
              errorCount: number;
            };
            expect(response.errorCount).toBe(0);
          }),
      );
    });

    describe(
      "consumeStreamEvents",
      { tags: ["provider:aws:eventbridge"] },
      () => {
        test.provider(
          "the deploy created an EventBridge rule targeting the function",
          () =>
            Effect.gen(function* () {
              // Out-of-band via distilled: the fixture's consumeStreamEvents
              // must have materialized as a rule on the default bus with the
              // Lambda as target.
              const { RuleNames } = yield* eventbridge.listRuleNamesByTarget({
                TargetArn: functionArn,
              });
              expect((RuleNames ?? []).length).toBeGreaterThanOrEqual(1);
            }),
        );
      },
    );
  },
);