Auth_system

* **Code Quality:** Uses Zod for validation, NextAuth.js for authentication, and Prisma for database interaction. Good use of TypeScript for type safety. However, security score is critically low. * **Language Features:** Effectively uses TypeScript's type system and modern JavaScript features. `clsx` and `twMerge` improve Tailwind CSS integration. * **Code Structure:** Well-organized files and folders. Clear separation of concerns between schemas, utils, and authentication logic. However, error handling and security measures are inadequate. * **Improvements:** Address critical security vulnerabilities (57203 reported). Implement comprehensive unit and integration tests. Improve documentation to match 50% doc coverage. Refactor `refine` calls in `SettingsSchema` for better readability. **Specific, Actionable Improvements:** * **Security:** Immediately investigate and remediate the 57203 reported critical security issues. This is the highest priority. A security score of 0.0 is unacceptable. * **Testing:** Implement robust unit tests for all schema validation and authentication logic. Add integration tests to verify interactions with the database and external providers (Google, GitHub). Aim for 80%+ test coverage. * **Error Handling:** Improve error handling throughout the codebase. Instead of simply returning `null` in `auth.config.ts`, provide more informative error messages to the user. * **Documentation:** Expand documentation to at least 80% coverage. Document all functions, classes, and important code sections clearly. * **Schema Refinement:** Refactor the nested `refine` functions within `SettingsSchema` to improve readability. Consider using a more declarative approach or helper functions to clarify the password change logic. For example: ```typescript const passwordChangeRefine = z.refine((data) => data.password && data.newPassword || !data.password && !data.newPassword, { message: "Both old and new passwords are required to change password.", }) export const SettingsSchema = z.object({ // ...other fields }).refine(passwordChangeRefine) ``` * **Dependency Management:** Ensure all dependencies are up-to-date and use a consistent versioning strategy (e.g., semantic versioning).