9. Recommendations & Action Items

Issues by Priority

9.1 Critical Issues (Priority: High)

Critical Issues

DescriptionImpactRecommendation
Sensitive files in repository - Certificates, private keys, keystores, and hardcoded passwords stored directly in repository. `android/key.properties` contains hardcoded passwords in plain text.
Critical - Security risk: credentials exposed in version control. Hardcoded passwords in key.properties file. Potential for unauthorized access. Repository bloat from sensitive files.
Move all sensitive files to centralized secrets management. Remove key.properties with hardcoded passwords from repository. Remove from repository and add to .gitignore. Rotate all exposed credentials. Implement secrets injection in CI/CD. Ensure key.properties is only created from environment variables in CI/CD.
Certificate validation can be disabled - Certificate validation can be disabled via Firebase Remote Config. Staging build always uses AllowAllOverride, accepting all certificates. No certificate pinning implemented.
Critical - Security vulnerability: Man-in-the-middle attacks possible. Remote config can dynamically disable certificate validation. Staging build accepts all certificates regardless of validity.
Remove certificate validation override functionality. Remove AllowAllOverride class or restrict to development builds only. Implement proper certificate pinning. Remove remote config flag that controls certificate validation. Enforce strict SSL/TLS validation in production and staging.
Complete absence of test suite - No unit, integration, or UI tests exist. Business logic and UI components are untested, creating high risk of regressions.
High - Risk of introducing bugs, UI regressions, and breaking changes without detection. No safety net for refactoring. Builds can succeed with broken code.
Implement comprehensive test suite: 1) Golden tests for UI consistency, 2) Unit tests for business logic, 3) Integration tests with mock data and staging environment. Add test execution to CI/CD pipeline. Create test directory structure and add test dependencies.

9.2 High Priority Issues

High Priority Issues

DescriptionImpactRecommendation
Unencrypted sensitive data storage - Access tokens, refresh tokens, usernames, UIDs, and email addresses stored in plain text in SQLite database. No encryption at rest for sensitive user data.
High - Sensitive authentication data accessible on device without encryption. Database file can be extracted and read directly. Risk of credential theft on compromised devices.
Migrate sensitive data to flutter_secure_storage. Use Android Keystore/iOS Keychain for credentials. Encrypt database file or sensitive columns using SQLCipher. Remove plain text storage of tokens and credentials.
39 dependencies constrained to older versions - Many packages are outdated with major version updates available. Discontinued packages in dependency tree. Internal package not null safety compliant blocks upgrades.
High - Security risks from outdated packages, missing security patches, discontinued packages. Blocks Flutter framework upgrades. Internal package null safety issue prevents dependency updates.
Update flutter_markedeer_mobile_content to null safety compliant version. Plan major version upgrades for Firebase packages, camera, drift, geolocator. Address discontinued packages. Migrate deprecated packages (package_info, share). Create upgrade plan with testing strategy.
No automated testing in CI/CD - Builds can succeed even with broken code. No quality gates in build process. No test execution steps in Codemagic workflows.
High - Broken code can be deployed to production. No safety net for code changes. Missing quality assurance in deployment pipeline.
Add test execution steps to Codemagic workflows. Run unit tests, widget tests, and golden tests before building. Fail builds if critical tests fail. Add linting and static analysis steps.
Suboptimal Git workflow and deployment strategy - GitFlow makes tracking changes difficult. Separate tags for staging/production prevent artifact promotion. No clear path from staging to production.
Medium - Slows development velocity, increases merge conflicts, makes deployment tracking difficult. Risk of deploying wrong version to production.
Migrate to trunk-based development. Implement single tag approach: tag once, deploy to staging, promote same tag to production after approval. Finish all hanging changes. Use feature flags instead of separate entry points.

9.3 Medium Priority Issues

Medium Priority Issues

DescriptionImpactRecommendation
Deprecated libraries - Deprecated packages (package_info, share) require migration. Many packages have major version updates available but are constrained to older versions.
Medium - Security risks from unmaintained packages, difficulty updating dependencies, potential breaking changes when forced to upgrade. Blocks Flutter framework upgrades.
Migrate package_info → package_info_plus, share → share_plus. Plan migration for major version updates. Resolve dependency overrides. Create upgrade plan with testing strategy. Update internal packages to null safety.
Inconsistent error handling - No centralized error handling helper. Different routes implement inline error handling with different patterns. Error messages hardcoded in Dutch.
Medium - Inconsistent user experience, maintenance burden, potential missed error cases. Hardcoded Dutch messages prevent internationalization.
Create centralized error handling helper function. Standardize error handling across all routes. Remove duplicate inline error handling. Internationalize all error messages. Ensure all async operations have proper error handling.
Code duplication - Firebase Performance tracing duplicated across 30+ routes. Route setup patterns, FutureBuilder patterns, and error handling duplicated. Singleton access patterns repeated.
Medium - Maintenance burden, increased risk of bugs, harder to implement changes consistently. Code bloat from duplicated patterns.
Extract Firebase Performance tracing into base route class or mixin. Create reusable widgets for common UI patterns. Extract common route patterns into base classes. Consolidate singleton access patterns.
Missing documentation - Minimal README (template content), outdated information (mentions Moor instead of Drift), sparse code documentation, no API documentation.
Medium - Difficult onboarding for new developers, maintenance challenges, unclear code intent. Template README not customized for SuperTank.
Update README to be SuperTank-specific. Fix outdated information (Moor → Drift). Expand README with comprehensive setup instructions. Add code documentation to public APIs. Create API documentation file. Document architecture and design patterns.
State management inconsistencies - RegisterState doesn't use ChangeNotifier (inconsistent pattern). State stored in both memory and database, potential for inconsistency. State persistence on every change impacts performance.
Medium - State synchronization issues, inconsistent patterns, performance impact from frequent database writes. Makes testing difficult.
Make RegisterState consistent with other state classes (use ChangeNotifier). Review state synchronization between memory and database. Add state validation. Consider batching database writes for performance. Consider dependency injection instead of singletons.

9.4 Low Priority Issues / Improvements

Low Priority Issues / Improvements

DescriptionImpactRecommendation
Memory management improvements - Image.memory() usage without size limits, state persistence on every change, some dispose methods implemented but not all.
Low - Potential memory leaks over time, performance degradation. Not critical but should be addressed.
Add memory limits for image loading. Optimize state persistence (batch updates). Review all dispose methods for completeness. Add memory profiling.
Network performance improvements - No request caching, no request batching, no retry logic. Token refresh creates new Dio instance. 30-second timeouts may be too long.
Low - Slower network performance, unnecessary API calls. Not critical but affects user experience.
Implement HTTP response caching. Add request deduplication. Implement retry logic for transient failures. Optimize token refresh flow. Consider reducing timeout from 30 to 20 seconds.
Localization improvements - Only Dutch locale supported, hardcoded strings throughout codebase. Localization infrastructure exists but not fully utilized.
Low - Limits app to Dutch market only. Not critical if single-market app, but prevents expansion.
Extract hardcoded strings to translation files. Create .arb files for Dutch. Implement proper localization system. Plan for additional languages if needed.

Recommended Action Timeline

Remove sensitive files and hardcoded passwords

Remove key.properties with hardcoded passwords, move credentials to secure storage, rotate all exposed credentials

high priority

Fix certificate validation security issue

Remove certificate validation override, implement certificate pinning, enforce strict SSL/TLS validation

high priority

Implement comprehensive test suite

Add unit, integration, and UI tests with target 70% coverage. Add test execution to CI/CD pipeline.

high priority

Migrate sensitive data to secure storage

Move tokens and credentials from plain text database to flutter_secure_storage

high priority

Update outdated dependencies

Fix null safety issue in internal package, plan major version upgrades, migrate deprecated packages

medium priority

Improve documentation

Update README, fix outdated information, add API documentation, improve code comments

medium priority

Standardize error handling

Create centralized error handler, internationalize error messages, ensure consistent patterns

medium priority