/**
 * Integration tests for security upload controls:
 * - Upload route has rate limit config (M13)
 * - Per-user storage quota enforcement (L3)
 *
 * Note: Rate limit enforcement requires @fastify/rate-limit plugin which
 * the test server does not register. These tests verify the routes accept
 * requests correctly and that quota logic is wired up. Full rate limit
 * enforcement is tested via the production server which registers the plugin.
 */
import { eq, sql } from "drizzle-orm";
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { db, schema } from "../../../apps/api/src/db/index.js";
import {
  buildTestApp,
  createMultipartPayload,
  loginAsAdmin,
  type TestApp,
} from "../test-server.js";

let testApp: TestApp;
let adminToken: string;

beforeAll(async () => {
  testApp = await buildTestApp();
  adminToken = await loginAsAdmin(testApp.app);
}, 30_000);

afterAll(async () => {
  await testApp.cleanup();
}, 10_000);

/**
 * Create a minimal valid PNG buffer (1x1 pixel, transparent).
 */
function createMinimalPng(): Buffer {
  return Buffer.from(
    "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==",
    "base64",
  );
}

describe("Upload endpoint accepts valid files (M13 rate limit configured)", () => {
  it("accepts authenticated uploads to /api/v1/files/upload", async () => {
    const png = createMinimalPng();
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test.png", contentType: "image/png", content: png },
    ]);

    const res = await testApp.app.inject({
      method: "POST",
      url: "/api/v1/files/upload",
      headers: {
        "content-type": contentType,
        authorization: `Bearer ${adminToken}`,
      },
      payload: body,
    });

    expect(res.statusCode).toBe(201);
    const resBody = JSON.parse(res.body);
    expect(resBody.files).toBeDefined();
    expect(resBody.files.length).toBe(1);
  });

  it("accepts uploads to /api/v1/upload", async () => {
    const png = createMinimalPng();
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "test-upload.png", contentType: "image/png", content: png },
    ]);

    const res = await testApp.app.inject({
      method: "POST",
      url: "/api/v1/upload",
      headers: {
        "content-type": contentType,
        authorization: `Bearer ${adminToken}`,
      },
      payload: body,
    });

    expect(res.statusCode).toBe(200);
    const resBody = JSON.parse(res.body);
    expect(resBody.jobId).toBeDefined();
    expect(resBody.files).toBeDefined();
  });
});

describe("Per-user storage quota enforcement (L3)", () => {
  it("accepts uploads when within storage quota", async () => {
    const png = createMinimalPng();
    const { body, contentType } = createMultipartPayload([
      { name: "file", filename: "quota-ok.png", contentType: "image/png", content: png },
    ]);

    const res = await testApp.app.inject({
      method: "POST",
      url: "/api/v1/files/upload",
      headers: {
        "content-type": contentType,
        authorization: `Bearer ${adminToken}`,
      },
      payload: body,
    });

    expect(res.statusCode).toBe(201);
  });

  it("tracks file sizes in the database for quota calculation", async () => {
    // Verify we can query total storage per user (the quota check mechanism)
    const [adminUser] = await db
      .select()
      .from(schema.users)
      .where(eq(schema.users.username, "admin"));

    expect(adminUser).toBeDefined();

    const [result] = await db
      .select({ total: sql<number>`coalesce(sum(${schema.userFiles.size}), 0)` })
      .from(schema.userFiles)
      .where(eq(schema.userFiles.userId, adminUser?.id ?? ""));

    // Should have some bytes from the uploads in previous tests
    expect(result).toBeDefined();
    // Postgres returns SUM as string (bigint); coerce for comparison
    expect(Number(result?.total)).toBeGreaterThanOrEqual(0);
  });

  it("quota check query returns 0 for users with no files", async () => {
    const [result] = await db
      .select({ total: sql<number>`coalesce(sum(${schema.userFiles.size}), 0)` })
      .from(schema.userFiles)
      .where(eq(schema.userFiles.userId, "nonexistent-user-id"));

    expect(result).toBeDefined();
    // Postgres returns SUM as string (bigint); coerce for comparison
    expect(Number(result?.total)).toBe(0);
  });
});