import { expect } from "chai";
import { beforeEach, describe, it } from "mocha";
import "reflect-metadata";
import { getLayer } from "../communication/getLayer.nodejs";
import { sleep } from "../helpers/async";
import { NopeObservable } from "../observables/nopeObservable";
import { NopeRpcManager } from "./NopeRpcManager";

describe("NopeRpcManager", function () {
  // Describe the required Test:
  let manager = new NopeRpcManager(
    {
      communicator: getLayer("event", "", false),
      logger: false,
    },
    () => new NopeObservable(),
    async () => "test",
    "test"
  );
  describe("serviceHandeling", function () {
    beforeEach(() => {
      // Create a new Observer
      manager = new NopeRpcManager(
        {
          communicator: getLayer("event", "", false),
          logger: false,
        },
        () => new NopeObservable(),
        async () => "test",
        "test"
      );
    });

    const helloWorld = async (greetings: string) => {
      return "Hello " + greetings + "!";
    };

    const delay = async (greetings: string) => {
      await sleep(1000);
      return "Hello " + greetings + "!";
    };

    it("registering service", async () => {
      await manager.ready.waitFor();

      const r = manager.registerService(helloWorld);
      await manager.services.onChange.waitForUpdate();
    });

    it("call service", async () => {
      await manager.ready.waitFor();

      const r = manager.registerService(helloWorld, {
        id: "helloworld",
      });

      await sleep(10);

      const result = await manager.performCall("helloworld", ["Mocha"]);
      expect(result).to.equal("Hello Mocha!", "result is not matching");
    });

    it("call service via methodInterface", async () => {
      await manager.ready.waitFor();

      const r = manager.registerService(helloWorld, {
        id: "helloworld",
      });

      await sleep(10);

      const result = await manager.methodInterface.helloworld("Mocha");
      expect(result).to.equal("Hello Mocha!", "result is not matching");
    });

    it("call service with a timeout", async () => {
      await manager.ready.waitFor();

      const r = manager.registerService(delay, {
        id: "helloworld",
      });

      await sleep(10);

      const err = Error("Error not thrown");

      try {
        const result = await manager.methodInterfaceWithOptions.helloworld(
          {
            timeout: 50,
          },
          "Mocha"
        );
        throw err;
      } catch (e) {
        if (e == err) {
          throw err;
        }
      }
    });
  });

  describe("RpcManager Communication", function () {
    let caller = new NopeRpcManager(
      {
        communicator: getLayer("event", "", false),
        logger: false,
      },
      () => new NopeObservable(),
      async () => "test",
      "test"
    );

    beforeEach(() => {
      const communicator = getLayer("event", "", false);

      // Create a new Observer
      manager = new NopeRpcManager(
        {
          communicator,
          logger: false,
        },
        () => new NopeObservable(),
        async () => "test",
        "test"
      );

      caller = new NopeRpcManager(
        {
          communicator,
          logger: false,
        },
        () => new NopeObservable(),
        async () => "test",
        "test"
      );
    });

    const helloWorld = async (greetings: string) => {
      return "Hello " + greetings + "!";
    };

    const delay = async (greetings: string) => {
      await sleep(1000);
      return "Hello " + greetings + "!";
    };

    it("registering service", async () => {
      await manager.ready.waitFor();
      await caller.ready.waitFor();

      const r = manager.registerService(helloWorld);
      await manager.services.onChange.waitForUpdate();
    });

    it("call service", async () => {
      await manager.ready.waitFor();
      await caller.ready.waitFor();

      const r = manager.registerService(helloWorld, {
        id: "helloworld",
      });

      await sleep(10);

      const result = await caller.performCall("helloworld", ["Mocha"]);
      expect(result).to.equal("Hello Mocha!", "result is not matching");
    });

    it("call service via methodInterface", async () => {
      await manager.ready.waitFor();
      await caller.ready.waitFor();

      const r = manager.registerService(helloWorld, {
        id: "helloworld",
      });

      await sleep(10);

      const result = await caller.methodInterface.helloworld("Mocha");
      expect(result).to.equal("Hello Mocha!", "result is not matching");
    });

    it("call service with a timeout", async () => {
      await manager.ready.waitFor();
      await caller.ready.waitFor();

      const r = manager.registerService(delay, {
        id: "helloworld",
      });

      await sleep(10);

      const err = Error("Error not thrown");

      try {
        const result = await caller.methodInterfaceWithOptions.helloworld(
          {
            timeout: 50,
          },
          "Mocha"
        );
        throw err;
      } catch (e) {
        if (e == err) {
          throw err;
        }
      }
    });
  });
});