import {
    expect,
    app,
    http,
    Server,
    cleanMockSetup,
    createAuthToken,
    setupIAM,
    closeMockServer,
    setupE2EMockEnvVariables,
    Authorities,
    authoriseProjectIamAccess,
    chai,
    uuidv4,
} from "../common/e2e-imports";
import { setupProjectAndGetDetails, getCommissioningSystemById } from "../util/db-helper";

/* eslint-disable @typescript-eslint/no-explicit-any */
describe("Systems API E2E tests", () => {
    let server: Server;
    let authToken: any;
    let testProjectId: string;
    let testSystemTypeId: string;

    before(async () => {
        setupE2EMockEnvVariables();
        await cleanMockSetup();
        await setupIAM();
        server = http.createServer(app);
        server.listen();
        const projectDetails = await setupProjectAndGetDetails(uuidv4().substring(20));
        testProjectId = projectDetails.ProjectId;

        authToken = await createAuthToken("abc");
        await authoriseProjectIamAccess(testProjectId, authToken.token, [Authorities.PROJECT_EDIT]);

        // A system requires an existing system type (systemTypeId), which in turn needs a workflow.
        const wfRes = await chai
            .request(app)
            .post(`/api/v2/projects/${testProjectId}/commissioning/workflows`)
            .set("Authorization", `Bearer ${authToken.token}`)
            .send({ name: "Systems E2E Workflow" });
        const workflowId = wfRes.body.commissioningWorkflowId;

        const stRes = await chai
            .request(app)
            .post(`/api/v2/projects/${testProjectId}/system-types`)
            .set("Authorization", `Bearer ${authToken.token}`)
            .send({ name: `Systems E2E SystemType ${uuidv4()}`, commissioningWorkflowId: workflowId });
        testSystemTypeId = stRes.body.systemTypeId;
    });

    after(async () => {
        closeMockServer(server);
    });

    describe("GET /api/v2/systems", () => {
        before(async () => {
            authToken = await createAuthToken("abc");
            await authoriseProjectIamAccess(testProjectId, authToken.token, [Authorities.PROJECT_VIEW]);
        });

        it("should return 200 with a paginated envelope", async () => {
            const res = await chai.request(app).get(`/api/v2/systems?projectId=${testProjectId}`).set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(200);
            expect(res.body).to.be.an("object");
            expect(res.body).to.have.property("records").that.is.an("array");
            expect(res.body).to.have.property("recordCount");
            expect(res.body).to.have.property("lastFetchedIndexId");
        });

        it("should advance to the next page using lastFetchedIndexId and size", async () => {
            const editToken = await createAuthToken("abc");
            await authoriseProjectIamAccess(testProjectId, editToken.token, [Authorities.PROJECT_EDIT]);

            // Ensure there are at least 2 records to paginate over
            await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${editToken.token}`)
                .send({ projectId: testProjectId, name: `E2E Page System A ${uuidv4()}`, systemTypeId: testSystemTypeId });
            await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${editToken.token}`)
                .send({ projectId: testProjectId, name: `E2E Page System B ${uuidv4()}`, systemTypeId: testSystemTypeId });

            const firstPage = await chai.request(app).get(`/api/v2/systems?projectId=${testProjectId}&size=1`).set("Authorization", `Bearer ${authToken.token}`);

            expect(firstPage.status).to.equal(200);
            expect(firstPage.body.records).to.be.an("array");
            expect(firstPage.body.records.length).to.equal(1);
            expect(firstPage.body.lastFetchedIndexId).to.not.equal(-1);

            const firstRecordId = firstPage.body.records[0].commissioningSystemId;

            const nextPage = await chai
                .request(app)
                .get(`/api/v2/systems?projectId=${testProjectId}&size=1&lastFetchedIndexId=${firstPage.body.lastFetchedIndexId}`)
                .set("Authorization", `Bearer ${authToken.token}`);

            expect(nextPage.status).to.equal(200);
            expect(nextPage.body.records).to.be.an("array");
            if (nextPage.body.records.length > 0) {
                expect(nextPage.body.records[0].commissioningSystemId).to.not.equal(firstRecordId);
            }
        });

        it("should return 400 when size is not a number", async () => {
            const res = await chai.request(app).get(`/api/v2/systems?projectId=${testProjectId}&size=abc`).set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(400);
            expect(res.body).to.have.property("code", "InvalidRequest");
        });

        it("should return 400 when projectId is missing", async () => {
            const res = await chai.request(app).get("/api/v2/systems").set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(400);
            expect(res.body).to.have.property("code", "InvalidRequest");
        });

        it("should return 400 when projectId is not a valid UUID", async () => {
            const res = await chai.request(app).get("/api/v2/systems?projectId=not-a-uuid").set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(400);
            expect(res.body).to.have.property("code", "InvalidRequest");
        });
    });

    describe("POST /api/v2/systems", () => {
        before(async () => {
            authToken = await createAuthToken("abc");
            await authoriseProjectIamAccess(testProjectId, authToken.token, [Authorities.PROJECT_EDIT]);
        });

        it("should return 201 and create a system with valid payload", async () => {
            const payload = { projectId: testProjectId, name: "E2E Chilled Water", systemTypeId: testSystemTypeId };

            const res = await chai.request(app).post(`/api/v2/systems`).set("Authorization", `Bearer ${authToken.token}`).send(payload);

            expect(res.status).to.equal(201);
            expect(res.body).to.have.property("commissioningSystemId");
            expect(res.body).to.have.property("name", "E2E Chilled Water");
            expect(res.body).to.have.property("systemTypeId", testSystemTypeId);
            expect(res.body).to.have.property("createdBy");
            expect(res.body).to.have.property("insertedOn");

            const dbRow = await getCommissioningSystemById(testProjectId, res.body.commissioningSystemId);
            expect(dbRow).to.exist;
            expect(dbRow.Name).to.equal("E2E Chilled Water");
        });

        it("should return 400 when name is missing", async () => {
            const res = await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${authToken.token}`)
                .send({ projectId: testProjectId, systemTypeId: testSystemTypeId });

            expect(res.status).to.equal(400);
            expect(res.body).to.have.property("code", "InvalidRequest");
        });

        it("should return 400 when systemTypeId is missing", async () => {
            const res = await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${authToken.token}`)
                .send({ projectId: testProjectId, name: "E2E Chilled Water" });

            expect(res.status).to.equal(400);
            expect(res.body).to.have.property("code", "InvalidRequest");
        });

        it("should return 400 when systemTypeId is not a valid UUID", async () => {
            const res = await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${authToken.token}`)
                .send({ projectId: testProjectId, name: "E2E Chilled Water", systemTypeId: "not-a-uuid" });

            expect(res.status).to.equal(400);
            expect(res.body).to.have.property("code", "InvalidRequest");
        });

        it("should return 404 when systemTypeId does not exist", async () => {
            const res = await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${authToken.token}`)
                .send({ projectId: testProjectId, name: "E2E Chilled Water", systemTypeId: uuidv4() });

            expect(res.status).to.equal(404);
        });

        it("should return 400 when projectId is missing", async () => {
            const res = await chai
                .request(app)
                .post("/api/v2/systems")
                .set("Authorization", `Bearer ${authToken.token}`)
                .send({ name: "E2E Chilled Water", systemTypeId: testSystemTypeId });

            expect(res.status).to.equal(400);
        });
    });

    describe("GET /api/v2/systems/:commissioningSystemId", () => {
        let createdSystemId: string;

        before(async () => {
            authToken = await createAuthToken("abc");
            await authoriseProjectIamAccess(testProjectId, authToken.token, [Authorities.PROJECT_EDIT]);
            const res = await chai
                .request(app)
                .post(`/api/v2/systems`)
                .set("Authorization", `Bearer ${authToken.token}`)
                .send({ projectId: testProjectId, name: "E2E Get System Test", systemTypeId: testSystemTypeId });
            createdSystemId = res.body.commissioningSystemId;
        });

        it("should return 200 with the system", async () => {
            const res = await chai.request(app).get(`/api/v2/systems/${createdSystemId}?projectId=${testProjectId}`).set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(200);
            expect(res.body).to.have.property("commissioningSystemId", createdSystemId);
            expect(res.body).to.have.property("name", "E2E Get System Test");
        });

        it("should return 404 when system does not exist", async () => {
            const res = await chai.request(app).get(`/api/v2/systems/${uuidv4()}?projectId=${testProjectId}`).set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(404);
        });

        it("should return 400 when commissioningSystemId is not a valid UUID", async () => {
            const res = await chai.request(app).get(`/api/v2/systems/not-a-uuid?projectId=${testProjectId}`).set("Authorization", `Bearer ${authToken.token}`);

            expect(res.status).to.equal(400);
        });
    });
});