import { beforeEach, describe, expect, it } from "@jest/globals";
import { setupTestServerContext, setupTestServerHolder } from "../testHelpers/apolloTestServerHelpers";
import { IEta, IShuttle, IStop, IPassioSystem } from "../../src/entities/entities";
import {
  addMockEtaToRepository, addMockShuttleToRepository,
  addMockStopToRepository,
  addMockSystemToRepository
} from "../testHelpers/repositorySetupHelpers";
import assert = require("node:assert");

describe("EtaResolvers", () => {
  const holder = setupTestServerHolder();
  const context = setupTestServerContext();

  let mockSystem: IPassioSystem;
  let mockShuttle: IShuttle;
  let mockStop: IStop;
  let expectedEta: IEta;

  beforeEach(async () => {
    mockSystem = await addMockSystemToRepository(context.shuttleRepository);
    mockShuttle = await addMockShuttleToRepository(context.shuttleRepository, mockSystem.id);
    mockStop = await addMockStopToRepository(context.shuttleRepository, mockSystem.id);
    expectedEta = await addMockEtaToRepository(context.shuttleRepository, mockStop.id, mockShuttle.id);
  });

  async function getResponseForEtaQuery(query: string) {
    const response = await holder.testServer.executeOperation({
      query,
      variables: {
        systemId: mockSystem.id,
        shuttleId: mockShuttle.id,
      },
    }, {
      contextValue: context

    });
    return response;
  }

  describe("stop", () => {
    const query = `
    query GetETAStop($systemId: ID!, $shuttleId: ID!) {
      system(id: $systemId) {
        shuttle(id: $shuttleId) {
          etas {
            stop {
              id
            }
          }
        }
      }
    }
    `;

    it("returns the associated stop if it exists", async () => {
      const response = await getResponseForEtaQuery(query);

      assert(response.body.kind === "single");
      expect(response.body.singleResult.errors).toBeUndefined();
      const eta = (response.body.singleResult.data?.system as any).shuttle.etas[0];
      expect(eta.stop.id).toEqual(expectedEta.stopId);
    });
  });

  describe("shuttle", () => {
    const query = `
    query GetETAShuttle($systemId: ID!, $shuttleId: ID!) {
      system(id: $systemId) {
        shuttle(id: $shuttleId) {
          etas {
            shuttle {
              id
            }
          }
        }
      }
    }
    `;

    it("returns the associated shuttle if it exists", async () => {
      const response = await getResponseForEtaQuery(query);

      assert(response.body.kind === "single");
      expect(response.body.singleResult.errors).toBeUndefined();
      const eta = (response.body.singleResult.data?.system as any).shuttle.etas[0];
      expect(eta.shuttle.id).toEqual(expectedEta.shuttleId);
    });
  });
});