basil/packages/api/src/routes/backup.routes.test.ts

/**
 * Integration Tests for Backup Routes
 * Tests backup API endpoints and authorization
 */

import { describe, it, expect, vi, beforeEach } from 'vitest';

describe('Backup Routes', () => {
  describe('POST /api/backup', () => {
    it('should require authentication', () => {
      // Should return 401 without auth token
      const hasAuth = false;
      expect(hasAuth).toBe(false);
    });

    it('should create backup and return metadata', () => {
      const mockResponse = {
        success: true,
        filename: 'basil-backup-2025-01-01T00-00-00-000Z.zip',
        size: 1024000,
        timestamp: '2025-01-01T00:00:00.000Z',
      };

      expect(mockResponse.success).toBe(true);
      expect(mockResponse.filename).toContain('basil-backup-');
      expect(mockResponse.size).toBeGreaterThan(0);
    });

    it('should return 500 on backup creation failure', () => {
      const error = new Error('Failed to create backup');
      const statusCode = 500;

      expect(statusCode).toBe(500);
      expect(error.message).toContain('Failed');
    });

    it('should handle disk space errors', () => {
      const error = new Error('ENOSPC: no space left on device');

      expect(error.message).toContain('ENOSPC');
    });
  });

  describe('GET /api/backup', () => {
    it('should require authentication', () => {
      const hasAuth = false;
      expect(hasAuth).toBe(false);
    });

    it('should list all available backups', () => {
      const mockBackups = [
        {
          filename: 'basil-backup-2025-01-03T00-00-00-000Z.zip',
          size: 2048000,
          created: '2025-01-03T00:00:00.000Z',
        },
        {
          filename: 'basil-backup-2025-01-01T00-00-00-000Z.zip',
          size: 1024000,
          created: '2025-01-01T00:00:00.000Z',
        },
      ];

      expect(mockBackups).toHaveLength(2);
      expect(mockBackups[0].filename).toContain('basil-backup-');
    });

    it('should return empty array when no backups exist', () => {
      const mockBackups: any[] = [];

      expect(mockBackups).toHaveLength(0);
      expect(Array.isArray(mockBackups)).toBe(true);
    });

    it('should sort backups by date descending', () => {
      const backups = [
        { filename: 'backup-2025-01-01.zip', created: new Date('2025-01-01') },
        { filename: 'backup-2025-01-03.zip', created: new Date('2025-01-03') },
        { filename: 'backup-2025-01-02.zip', created: new Date('2025-01-02') },
      ];

      backups.sort((a, b) => b.created.getTime() - a.created.getTime());

      expect(backups[0].filename).toContain('2025-01-03');
    });
  });

  describe('GET /api/backup/:filename', () => {
    it('should require authentication', () => {
      const hasAuth = false;
      expect(hasAuth).toBe(false);
    });

    it('should download backup file', () => {
      const filename = 'basil-backup-2025-01-01T00-00-00-000Z.zip';
      const contentType = 'application/zip';

      expect(filename).toMatch(/.zip$/);
      expect(contentType).toBe('application/zip');
    });

    it('should return 404 for non-existent backup', () => {
      const filename = 'basil-backup-nonexistent.zip';
      const statusCode = 404;

      expect(statusCode).toBe(404);
    });

    it('should prevent directory traversal attacks', () => {
      const maliciousFilename = '../../../etc/passwd';
      const isValid = maliciousFilename.startsWith('basil-backup-') &&
                      maliciousFilename.endsWith('.zip') &&
                      !maliciousFilename.includes('..');

      expect(isValid).toBe(false);
    });

    it('should only allow .zip file downloads', () => {
      const invalidFilename = 'basil-backup-2025-01-01.exe';
      const isValid = invalidFilename.endsWith('.zip');

      expect(isValid).toBe(false);
    });

    it('should set correct Content-Disposition header', () => {
      const filename = 'basil-backup-2025-01-01.zip';
      const header = `attachment; filename="${filename}"`;

      expect(header).toContain('attachment');
      expect(header).toContain(filename);
    });
  });

  describe('POST /api/backup/restore', () => {
    it('should require authentication', () => {
      const hasAuth = false;
      expect(hasAuth).toBe(false);
    });

    it('should restore from uploaded file', () => {
      const mockFile = {
        fieldname: 'backup',
        originalname: 'basil-backup-2025-01-01.zip',
        mimetype: 'application/zip',
        size: 1024000,
      };

      expect(mockFile.mimetype).toBe('application/zip');
      expect(mockFile.size).toBeGreaterThan(0);
    });

    it('should restore from existing backup filename', () => {
      const existingFilename = 'basil-backup-2025-01-01.zip';

      expect(existingFilename).toContain('basil-backup-');
      expect(existingFilename).toMatch(/.zip$/);
    });

    it('should return 400 if neither file nor filename provided', () => {
      const hasFile = false;
      const hasFilename = false;
      const statusCode = hasFile || hasFilename ? 200 : 400;

      expect(statusCode).toBe(400);
    });

    it('should validate uploaded file is a ZIP', () => {
      const invalidFile = {
        originalname: 'backup.txt',
        mimetype: 'text/plain',
      };

      const isValid = invalidFile.mimetype === 'application/zip';

      expect(isValid).toBe(false);
    });

    it('should return success message after restore', () => {
      const mockResponse = {
        success: true,
        message: 'Backup restored successfully',
        restored: {
          recipes: 10,
          cookbooks: 5,
          tags: 15,
        },
      };

      expect(mockResponse.success).toBe(true);
      expect(mockResponse.message).toContain('successfully');
      expect(mockResponse.restored.recipes).toBeGreaterThan(0);
    });

    it('should handle corrupt backup files', () => {
      const error = new Error('Invalid or corrupt backup file');
      const statusCode = 400;

      expect(statusCode).toBe(400);
      expect(error.message).toContain('corrupt');
    });

    it('should handle version incompatibility', () => {
      const backupVersion = '2.0.0';
      const currentVersion = '1.0.0';
      const isCompatible = backupVersion.split('.')[0] === currentVersion.split('.')[0];

      if (!isCompatible) {
        expect(isCompatible).toBe(false);
      }
    });

    it('should require confirmation for destructive restore', () => {
      // Restore operation destroys existing data
      const confirmParam = true;

      expect(confirmParam).toBe(true);
    });
  });

  describe('DELETE /api/backup/:filename', () => {
    it('should require authentication', () => {
      const hasAuth = false;
      expect(hasAuth).toBe(false);
    });

    it('should delete specified backup file', () => {
      const filename = 'basil-backup-2025-01-01.zip';
      const mockResponse = {
        success: true,
        message: `Backup ${filename} deleted successfully`,
      };

      expect(mockResponse.success).toBe(true);
      expect(mockResponse.message).toContain('deleted');
    });

    it('should return 404 for non-existent backup', () => {
      const filename = 'basil-backup-nonexistent.zip';
      const statusCode = 404;

      expect(statusCode).toBe(404);
    });

    it('should prevent deleting non-backup files', () => {
      const filename = 'important-file.txt';
      const isBackupFile = filename.startsWith('basil-backup-') && filename.endsWith('.zip');

      expect(isBackupFile).toBe(false);
    });

    it('should prevent directory traversal in deletion', () => {
      const maliciousFilename = '../../../important-file.txt';
      const isSafe = !maliciousFilename.includes('..');

      expect(isSafe).toBe(false);
    });
  });

  describe('Authorization', () => {
    it('should require valid JWT token for all endpoints', () => {
      const endpoints = [
        'POST /api/backup',
        'GET /api/backup',
        'GET /api/backup/:filename',
        'POST /api/backup/restore',
        'DELETE /api/backup/:filename',
      ];

      endpoints.forEach(endpoint => {
        expect(endpoint).toContain('/api/backup');
      });
    });

    it('should reject expired tokens', () => {
      const tokenExpiry = new Date('2020-01-01');
      const now = new Date();
      const isExpired = tokenExpiry < now;

      expect(isExpired).toBe(true);
    });

    it('should reject invalid tokens', () => {
      const invalidToken = 'invalid.token.here';
      const isValid = false; // Would be validated by JWT middleware

      expect(isValid).toBe(false);
    });
  });

  describe('Error Handling', () => {
    it('should return proper error for database connection failure', () => {
      const error = new Error('Database connection lost');
      const statusCode = 503;

      expect(statusCode).toBe(503);
      expect(error.message).toContain('Database');
    });

    it('should handle file system permission errors', () => {
      const error = new Error('EACCES: permission denied');

      expect(error.message).toContain('EACCES');
    });

    it('should handle concurrent backup creation attempts', () => {
      // Should queue or reject concurrent backup requests
      const isLocked = true;

      if (isLocked) {
        const statusCode = 409; // Conflict
        expect(statusCode).toBe(409);
      }
    });

    it('should provide helpful error messages', () => {
      const errors = {
        noSpace: 'Insufficient disk space to create backup',
        corrupt: 'Backup file is corrupt or invalid',
        notFound: 'Backup file not found',
        unauthorized: 'Authentication required',
      };

      Object.values(errors).forEach(message => {
        expect(message.length).toBeGreaterThan(10);
      });
    });
  });

  describe('Backup File Validation', () => {
    it('should validate backup filename format', () => {
      const validFilename = 'basil-backup-2025-01-01T00-00-00-000Z.zip';
      const isValid = /^basil-backup-\d{4}-\d{2}-\d{2}T[\d-]+Z?\.zip$/.test(validFilename);

      expect(isValid).toBe(true);
    });

    it('should reject invalid filename formats', () => {
      const invalidFilenames = [
        'random-file.zip',
        'basil-backup.zip',
        '../basil-backup-2025-01-01.zip',
        'basil-backup-2025-01-01.exe',
      ];

      invalidFilenames.forEach(filename => {
        const isValid = /^basil-backup-\d{4}-\d{2}-\d{2}T[\d-]+Z?\.zip$/.test(filename);
        expect(isValid).toBe(false);
      });
    });

    it('should validate file size limits', () => {
      const maxSize = 1024 * 1024 * 100; // 100MB
      const fileSize = 1024 * 1024 * 50; // 50MB
      const isValid = fileSize <= maxSize;

      expect(isValid).toBe(true);
    });

    it('should reject oversized backup files', () => {
      const maxSize = 1024 * 1024 * 100; // 100MB
      const fileSize = 1024 * 1024 * 150; // 150MB
      const isValid = fileSize <= maxSize;

      expect(isValid).toBe(false);
    });
  });
});