/**
 * Tests for the bootstrap operation
 *
 * These tests use a real PostgreSQL database to test the executeBootstrap function.
 */

import type { Database } from "@reviq/db-schema";
import type { Kysely } from "kysely";
import { afterAll, beforeAll, describe, expect, test } from "bun:test";
import { sql } from "kysely";
import { createDb } from "../client.js";
import { executeBootstrap } from "./execute-bootstrap.js";
import { hashToken, parseToken, TOKEN_PREFIX } from "./token.js";

/**
 * Skip flag for database-dependent tests.
 * Tests are skipped when TEST_DATABASE_URL is not configured.
 */
const SKIP_DB_TESTS = !process.env.TEST_DATABASE_URL;

const describeE2E = describe.skipIf(SKIP_DB_TESTS);

/** Tables to truncate between tests */
const TABLES_TO_TRUNCATE = [
  "sessions",
  "api_tokens",
  "login_requests",
  "passkeys",
  "user_devices",
  "webauthn_challenges",
  "email_verifications",
  "password_resets",
  "org_invites",
  "org_sites",
  "org_members",
  "orgs",
  "users",
] as const;

/** Generate unique test ID */
let testCounter = 0;
const uniqueTestId = (): string => {
  const timestamp = Date.now();
  testCounter++;
  return `${timestamp.toString()}-${testCounter.toString()}`;
};

/** Truncate all tables */
async function truncateAllTables(db: Kysely<Database>): Promise<void> {
  const tableList = TABLES_TO_TRUNCATE.join(", ");
  await sql`TRUNCATE ${sql.raw(tableList)} RESTART IDENTITY CASCADE`.execute(
    db,
  );
}

/** Signal for transaction rollback */
class RollbackSignal extends Error {
  constructor() {
    super("RollbackSignal");
    this.name = "RollbackSignal";
  }
}

/** Run test in transaction that auto-rollbacks */
async function withTestTransaction<T>(
  db: Kysely<Database>,
  testFn: (trx: Kysely<Database>) => Promise<T>,
): Promise<T | undefined> {
  let result: T | undefined;

  try {
    await db.transaction().execute(async (trx) => {
      result = await testFn(trx);
      throw new RollbackSignal();
    });
  } catch (e) {
    if (!(e instanceof RollbackSignal)) {
      throw e;
    }
  }

  return result;
}

describeE2E("[e2e] executeBootstrap", () => {
  let db: Kysely<Database>;

  beforeAll(async () => {
    const testUrl = process.env.TEST_DATABASE_URL;
    if (!testUrl) {
      throw new Error("TEST_DATABASE_URL not set");
    }
    db = createDb(testUrl);
    await truncateAllTables(db);
  });

  afterAll(async () => {
    await truncateAllTables(db);
    await db.destroy();
  });

  test("creates superuser with correct email and password", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
      });

      expect(result.user.email).toBe("admin@example.com");

      // Verify user in database
      const user = await trx
        .selectFrom("users")
        .where("id", "=", result.user.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      expect(user.email).toBe("admin@example.com");
      expect(user.is_superuser).toBe(true);
      expect(user.email_verified_at).not.toBeNull();
      expect(user.password_hash).not.toBeNull();
    });
  });

  test("normalizes email to lowercase", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "ADMIN@EXAMPLE.COM",
        password: "password123",
      });

      expect(result.user.email).toBe("admin@example.com");
    });
  });

  test("creates organization with default slug and name", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
      });

      expect(result.org.slug).toBe("reviq");

      // Verify org in database
      const org = await trx
        .selectFrom("orgs")
        .where("id", "=", result.org.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      expect(org.slug).toBe("reviq");
      expect(org.display_name).toBe("RevIQ");
    });
  });

  test("creates organization with custom slug and name", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
        orgSlug: "custom-org",
        orgDisplayName: "Custom Organization",
      });

      expect(result.org.slug).toBe("custom-org");

      const org = await trx
        .selectFrom("orgs")
        .where("id", "=", result.org.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      expect(org.slug).toBe("custom-org");
      expect(org.display_name).toBe("Custom Organization");
    });
  });

  test("adds user as owner of organization", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
      });

      const membership = await trx
        .selectFrom("org_members")
        .where("user_id", "=", result.user.id)
        .where("org_id", "=", result.org.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      expect(membership.role).toBe("owner");
    });
  });

  test("creates API token with correct properties", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
      });

      // Token should be parseable
      expect(result.token.startsWith(TOKEN_PREFIX)).toBe(true);
      expect(parseToken(result.token)).not.toBeNull();

      // Token should be stored as hash in database
      const tokenRecord = await trx
        .selectFrom("api_tokens")
        .where("user_id", "=", result.user.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      expect(tokenRecord.token_hash).toBe(hashToken(result.token));
      expect(tokenRecord.name).toBe("CLI bootstrap token");
    });
  });

  test("creates API token with custom name", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
        tokenName: "Custom Token Name",
      });

      const tokenRecord = await trx
        .selectFrom("api_tokens")
        .where("user_id", "=", result.user.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      expect(tokenRecord.name).toBe("Custom Token Name");
    });
  });

  test("creates API token with custom expiration", async () => {
    await withTestTransaction(db, async (trx) => {
      const beforeCreate = Date.now();

      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
        tokenExpirationDays: 30,
      });

      const tokenRecord = await trx
        .selectFrom("api_tokens")
        .where("user_id", "=", result.user.id)
        .selectAll()
        .executeTakeFirstOrThrow();

      const expectedMin = beforeCreate + 30 * 24 * 60 * 60 * 1000 - 1000;
      const expectedMax = beforeCreate + 30 * 24 * 60 * 60 * 1000 + 5000;

      expect(tokenRecord.expires_at.getTime()).toBeGreaterThan(expectedMin);
      expect(tokenRecord.expires_at.getTime()).toBeLessThan(expectedMax);
    });
  });

  test("throws error for password less than 8 characters", async () => {
    await withTestTransaction(db, async (trx) => {
      // eslint-disable-next-line @typescript-eslint/await-thenable, @typescript-eslint/no-confusing-void-expression
      await expect(
        executeBootstrap(trx, {
          email: "admin@example.com",
          password: "short",
        }),
      ).rejects.toThrow("Password must be at least 8 characters");
    });
  });

  test("throws error for password exactly 7 characters", async () => {
    await withTestTransaction(db, async (trx) => {
      // eslint-disable-next-line @typescript-eslint/await-thenable, @typescript-eslint/no-confusing-void-expression
      await expect(
        executeBootstrap(trx, {
          email: "admin@example.com",
          password: "1234567",
        }),
      ).rejects.toThrow("Password must be at least 8 characters");
    });
  });

  test("accepts password exactly 8 characters", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "12345678",
      });

      expect(result.user.email).toBe("admin@example.com");
    });
  });

  test("throws error for invalid email without @", async () => {
    await withTestTransaction(db, async (trx) => {
      // eslint-disable-next-line @typescript-eslint/await-thenable, @typescript-eslint/no-confusing-void-expression
      await expect(
        executeBootstrap(trx, {
          email: "invalidemail",
          password: "password123",
        }),
      ).rejects.toThrow("Invalid email address");
    });
  });

  test("accepts email with @ symbol", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "valid@email",
        password: "password123",
      });

      expect(result.user.email).toBe("valid@email");
    });
  });

  test("throws error if user already exists (normal mode)", async () => {
    await withTestTransaction(db, async (trx) => {
      // Create the first user
      await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
        orgSlug: "org1",
      });

      // Attempt to create the same user again
      // eslint-disable-next-line @typescript-eslint/await-thenable, @typescript-eslint/no-confusing-void-expression
      await expect(
        executeBootstrap(trx, {
          email: "admin@example.com",
          password: "password123",
          orgSlug: "org2",
        }),
      ).rejects.toThrow("User with email admin@example.com already exists");
    });
  });

  test("overwrites existing user in dangerouslyOverwriteExisting mode", async () => {
    await withTestTransaction(db, async (trx) => {
      // Create the first user
      const result1 = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
        orgSlug: "original-org",
      });

      const originalUserId = result1.user.id;

      // Overwrite the user
      const result2 = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "newpassword123",
        orgSlug: "new-org",
        dangerouslyOverwriteExisting: true,
      });

      // Should be a different user ID
      expect(result2.user.id).not.toBe(originalUserId);

      // Original user should be deleted
      const originalUser = await trx
        .selectFrom("users")
        .where("id", "=", originalUserId)
        .selectAll()
        .executeTakeFirst();

      expect(originalUser).toBeUndefined();

      // New user should exist
      const newUser = await trx
        .selectFrom("users")
        .where("id", "=", result2.user.id)
        .selectAll()
        .executeTakeFirst();

      expect(newUser).toBeDefined();
    });
  });

  test("deletes existing org in dangerouslyOverwriteExisting mode", async () => {
    await withTestTransaction(db, async (trx) => {
      // Create the first bootstrap
      const result1 = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
        orgSlug: "test-org",
      });

      const originalOrgId = result1.org.id;

      // Overwrite with a different email but same org slug
      const result2 = await executeBootstrap(trx, {
        email: "newadmin@example.com",
        password: "password123",
        orgSlug: "test-org",
        dangerouslyOverwriteExisting: true,
      });

      // Should be a different org ID
      expect(result2.org.id).not.toBe(originalOrgId);

      // Original org should be deleted
      const originalOrg = await trx
        .selectFrom("orgs")
        .where("id", "=", originalOrgId)
        .selectAll()
        .executeTakeFirst();

      expect(originalOrg).toBeUndefined();
    });
  });

  test("deletes related user records in overwrite mode", async () => {
    const uniqueId = uniqueTestId();
    await withTestTransaction(db, async (trx) => {
      // Create the first bootstrap
      const result1 = await executeBootstrap(trx, {
        email: `admin-${uniqueId}@example.com`,
        password: "password123",
        orgSlug: `org-${uniqueId}`,
      });

      // Manually add some related records
      await trx
        .insertInto("sessions")
        .values({
          user_id: result1.user.id,
          token_hash: "test-hash",
          ip_address: "127.0.0.1",
          user_agent: "test",
          expires_at: new Date(Date.now() + 86400000),
          trusted_mode: false,
        })
        .execute();

      await trx
        .insertInto("email_verifications")
        .values({
          user_id: result1.user.id,
          token: "test-token",
          expires_at: new Date(Date.now() + 86400000),
        })
        .execute();

      await trx
        .insertInto("login_requests")
        .values({
          user_id: result1.user.id,
          email: `admin-${uniqueId}@example.com`,
          token: "login-token",
          device_fingerprint: "fingerprint",
          expires_at: new Date(Date.now() + 86400000),
        })
        .execute();

      await trx
        .insertInto("passkeys")
        .values({
          user_id: result1.user.id,
          credential_id: Buffer.from("credential"),
          public_key: Buffer.from("publickey"),
          counter: 0,
          backup_eligible: false,
          backup_status: false,
          device_type: "singleDevice",
          name: "Test Passkey",
          rpid: "localhost",
          webauthn_user_id: "test-user-id",
        })
        .execute();

      await trx
        .insertInto("password_resets")
        .values({
          user_id: result1.user.id,
          token: "reset-token",
          expires_at: new Date(Date.now() + 86400000),
        })
        .execute();

      await trx
        .insertInto("user_devices")
        .values({
          user_id: result1.user.id,
          device_fingerprint: "device-fingerprint",
          user_agent: "test-agent",
        })
        .execute();

      // Overwrite the user
      await executeBootstrap(trx, {
        email: `admin-${uniqueId}@example.com`,
        password: "newpassword123",
        orgSlug: `org-${uniqueId}`,
        dangerouslyOverwriteExisting: true,
      });

      // All related records should be deleted
      const sessions = await trx
        .selectFrom("sessions")
        .where("user_id", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(sessions).toHaveLength(0);

      const emailVerifications = await trx
        .selectFrom("email_verifications")
        .where("user_id", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(emailVerifications).toHaveLength(0);

      const loginRequests = await trx
        .selectFrom("login_requests")
        .where("user_id", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(loginRequests).toHaveLength(0);

      const passkeys = await trx
        .selectFrom("passkeys")
        .where("user_id", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(passkeys).toHaveLength(0);

      const passwordResets = await trx
        .selectFrom("password_resets")
        .where("user_id", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(passwordResets).toHaveLength(0);

      const userDevices = await trx
        .selectFrom("user_devices")
        .where("user_id", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(userDevices).toHaveLength(0);
    });
  });

  test("deletes org invites created by user in overwrite mode", async () => {
    const uniqueId = uniqueTestId();
    await withTestTransaction(db, async (trx) => {
      // Create the first bootstrap
      const result1 = await executeBootstrap(trx, {
        email: `admin-${uniqueId}@example.com`,
        password: "password123",
        orgSlug: `org-${uniqueId}`,
      });

      // Create another org and invite
      const otherOrg = await trx
        .insertInto("orgs")
        .values({
          slug: `other-org-${uniqueId}`,
          display_name: "Other Org",
        })
        .returning(["id"])
        .executeTakeFirstOrThrow();

      await trx
        .insertInto("org_invites")
        .values({
          org_id: otherOrg.id,
          email: "invitee@example.com",
          role: "member",
          invited_by: result1.user.id,
          token: "invite-token",
          expires_at: new Date(Date.now() + 86400000),
        })
        .execute();

      // Overwrite the user
      await executeBootstrap(trx, {
        email: `admin-${uniqueId}@example.com`,
        password: "newpassword123",
        orgSlug: `new-org-${uniqueId}`,
        dangerouslyOverwriteExisting: true,
      });

      // Invite created by the user should be deleted
      const invites = await trx
        .selectFrom("org_invites")
        .where("invited_by", "=", result1.user.id)
        .selectAll()
        .execute();
      expect(invites).toHaveLength(0);
    });
  });

  test("deletes org related records in overwrite mode", async () => {
    const uniqueId = uniqueTestId();
    await withTestTransaction(db, async (trx) => {
      // Create the first bootstrap
      const result1 = await executeBootstrap(trx, {
        email: `admin-${uniqueId}@example.com`,
        password: "password123",
        orgSlug: `org-${uniqueId}`,
      });

      // Add org sites
      await trx
        .insertInto("org_sites")
        .values({
          org_id: result1.org.id,
          domain: "example.com",
        })
        .execute();

      // Add org invites (to the org, not by the user)
      const anotherUser = await trx
        .insertInto("users")
        .values({
          email: `other-${uniqueId}@example.com`,
          display_name: "Other User",
        })
        .returning(["id"])
        .executeTakeFirstOrThrow();

      await trx
        .insertInto("org_invites")
        .values({
          org_id: result1.org.id,
          email: "invitee@example.com",
          role: "member",
          invited_by: anotherUser.id,
          token: "invite-token-2",
          expires_at: new Date(Date.now() + 86400000),
        })
        .execute();

      // Overwrite with the same org slug
      await executeBootstrap(trx, {
        email: `newadmin-${uniqueId}@example.com`,
        password: "password123",
        orgSlug: `org-${uniqueId}`,
        dangerouslyOverwriteExisting: true,
      });

      // Org sites should be deleted
      const sites = await trx
        .selectFrom("org_sites")
        .where("org_id", "=", result1.org.id)
        .selectAll()
        .execute();
      expect(sites).toHaveLength(0);

      // Org invites should be deleted
      const invites = await trx
        .selectFrom("org_invites")
        .where("org_id", "=", result1.org.id)
        .selectAll()
        .execute();
      expect(invites).toHaveLength(0);
    });
  });

  test("succeeds when no existing user/org in overwrite mode", async () => {
    const uniqueId = uniqueTestId();
    await withTestTransaction(db, async (trx) => {
      // Should not throw even when nothing exists to overwrite
      const result = await executeBootstrap(trx, {
        email: `fresh-${uniqueId}@example.com`,
        password: "password123",
        orgSlug: `fresh-org-${uniqueId}`,
        dangerouslyOverwriteExisting: true,
      });

      expect(result.user.email).toBe(`fresh-${uniqueId}@example.com`);
      expect(result.org.slug).toBe(`fresh-org-${uniqueId}`);
    });
  });

  test("returns all expected fields", async () => {
    await withTestTransaction(db, async (trx) => {
      const result = await executeBootstrap(trx, {
        email: "admin@example.com",
        password: "password123",
      });

      // Check user fields
      expect(typeof result.user.id).toBe("number");
      expect(typeof result.user.email).toBe("string");

      // Check org fields
      expect(typeof result.org.id).toBe("number");
      expect(typeof result.org.slug).toBe("string");

      // Check token
      expect(typeof result.token).toBe("string");
      expect(result.token.startsWith(TOKEN_PREFIX)).toBe(true);
    });
  });
});