import { beforeEach, describe, it } from "@jest/globals";
import { ApolloServer } from "@apollo/server";
import { UnoptimizedInMemoryRepository } from "../../src/repositories/UnoptimizedInMemoryRepository";
import { ServerContext } from "../../src/ServerContext";
import { setUpTestServer } from "../testHelpers/apolloSetupHelpers";

describe("OrderedStopResolvers", () => {
  let apolloServer: ApolloServer<ServerContext>;
  let repository: UnoptimizedInMemoryRepository;

  beforeEach(async () => {
    apolloServer = setUpTestServer();
    repository = new UnoptimizedInMemoryRepository();
  });

  describe("nextStop", () => {
    const query = `
    query GetNextStop($systemId: ID!, $routeId: ID!, $stopId: ID!) {
      system(id: $systemId) {
        route(id: $routeId) {
          orderedStop(forStopId: $stopId) {
            nextStop {
              routeId
              stopId
            }
          }
        }
      }
    }
    `;

    it("returns the next stop if it exists", async () => {

    });

    it("returns null if there is no next stop in the repository", async () => {

    });

    it("returns null if the current stop no longer exists", async () => {

    });
  });

  describe("previousStop", () => {
    const query = `
    query GetNextStop($systemId: ID!, $routeId: ID!, $stopId: ID!) {
      system(id: $systemId) {
        route(id: $routeId) {
          orderedStop(forStopId: $stopId) {
            previousStop {
              routeId
              stopId
            }
          }
        }
      }
    }
    `;

    it("returns the previous stop if it exists", async () => {

    });

    it("returns null if there is no previous stop in the repository", async () => {

    });

    it("returns null if the current stop no longer exists", async () => {

    });
  });

  describe("route", () => {
    // Note that there is no `orderedStop(forRouteId)` resolver,
    // so fetch all ordered stops for a stop instead
    const query = `
    query GetNextStop($systemId: ID!, $stopId: ID!) {
      system(id: $systemId) {
        stop(id: $stopId) {
          orderedStops {
            route {
              id
              name
            }
          }
        }
      }
    }
    `;
  });

  it("returns the associated route if it exists", async () => {

  });

  it("returns null if the route doesn't exist", async () => {

  });

  describe("stop", () => {
    const query = `
    query GetNextStop($systemId: ID!, $routeId: ID!, $stopId: ID!) {
      system(id: $systemId) {
        route(id: $routeId) {
          orderedStop(forStopId: $stopId) {
            stop {
              name
              id
            }
          }
        }
      }
    }
    `;

    it("returns the associated stop if it exists", async () => {

    });

    it("returns null if the stop doesn't exist", async () => {

    });
  });
});