import express from "express";
import request from "supertest";
import { beforeEach, describe, expect, it, vi } from "vitest";

function createSelectChain(rows: unknown[]) {
  return {
    from() {
      return {
        where() {
          return Promise.resolve(rows);
        },
      };
    },
  };
}

function createUpdateChain(row: unknown) {
  return {
    set(values: unknown) {
      return {
        where() {
          return {
            returning() {
              return Promise.resolve([{ ...(row as Record<string, unknown>), ...(values as Record<string, unknown>) }]);
            },
          };
        },
      };
    },
  };
}

function createDb(row: Record<string, unknown>) {
  return {
    select: vi.fn(() => createSelectChain([row])),
    update: vi.fn(() => createUpdateChain(row)),
  } as any;
}

async function createApp(actor: Express.Request["actor"], row: Record<string, unknown>) {
  const [{ authRoutes }, { errorHandler }] = await Promise.all([
    import("../routes/auth.js"),
    import("../middleware/index.js"),
  ]);
  const app = express();
  app.use(express.json());
  app.use((req, _res, next) => {
    req.actor = actor;
    next();
  });
  app.use("/api/auth", authRoutes(createDb(row)));
  app.use(errorHandler);
  return app;
}

describe("auth routes", () => {
  const baseUser = {
    id: "user-1",
    name: "Jane Example",
    email: "jane@example.com",
    image: "https://example.com/jane.png",
  };

  beforeEach(() => {
    vi.resetModules();
  });

  it("returns the persisted user profile in the session payload", async () => {
    const app = await createApp(
      {
        type: "board",
        userId: "user-1",
        source: "session",
      },
      baseUser,
    );

    const res = await request(app).get("/api/auth/get-session");

    expect(res.status).toBe(200);
    expect(res.body).toEqual({
      session: {
        id: "paperclip:session:user-1",
        userId: "user-1",
      },
      user: baseUser,
    });
  });

  it("updates the signed-in profile", async () => {
    const app = await createApp(
      {
        type: "board",
        userId: "user-1",
        source: "local_implicit",
      },
      baseUser,
    );

    const res = await request(app)
      .patch("/api/auth/profile")
      .send({ name: "Board Operator", image: "" });

    expect(res.status).toBe(200);
    expect(res.body).toMatchObject({
      id: "user-1",
      name: "Board Operator",
      email: "jane@example.com",
      image: null,
    });
  });

  it("preserves the existing avatar when updating only the profile name", async () => {
    const app = await createApp(
      {
        type: "board",
        userId: "user-1",
        source: "local_implicit",
      },
      baseUser,
    );

    const res = await request(app)
      .patch("/api/auth/profile")
      .send({ name: "Board Operator" });

    expect(res.status).toBe(200);
    expect(res.body).toMatchObject({
      id: "user-1",
      name: "Board Operator",
      email: "jane@example.com",
      image: "https://example.com/jane.png",
    });
  });

  it("accepts Paperclip asset paths for avatars", async () => {
    const app = await createApp(
      {
        type: "board",
        userId: "user-1",
        source: "session",
      },
      baseUser,
    );

    const res = await request(app)
      .patch("/api/auth/profile")
      .send({ name: "Jane Example", image: "/api/assets/asset-1/content" });

    expect(res.status).toBe(200);
    expect(res.body.image).toBe("/api/assets/asset-1/content");
  });

  it("rejects invalid avatar image references", async () => {
    const app = await createApp(
      {
        type: "board",
        userId: "user-1",
        source: "session",
      },
      baseUser,
    );

    const res = await request(app)
      .patch("/api/auth/profile")
      .send({ name: "Jane Example", image: "not-a-url" });

    expect(res.status).toBe(400);
  });
});