docu: added information on architecture and progress

README.md

@@ -7,7 +7,7 @@ designed to manage and track work hours efficiently. The system showcases a
 backend developed in both Go and Dart with functional programming principles,
 and a React frontend to provide an interactive user experience.
 
-## Features
+## Features (longterm Goal)
 
 - User management: Registration, login, profile updates.
 - Time tracking: Start/stop time tracking, manual entry, break management.
@@ -21,6 +21,13 @@ and a React frontend to provide an interactive user experience.
 The project follows Domain-Driven Design (DDD) and Clean Architecture principles
 to ensure a modular, maintainable, and scalable codebase. The system is
 structured into well-defined layers with separation of concerns.
+The backend logic is divided in four primary layers:
+1. Domain-Layer: This layer contains only interfaces and definitions. Objects within can be regarded as contracts.
+2. Infrastructure-Layer: This layer contains implementations that rely on external sourcs. (e.g. database, configuration files)
+3. Application-Layer: All businesslogic is implemented within the application layer. This Layer defines how the applogic behaves and how the server responds.
+4. Interface-Layer: Analogous to the Infrastructure-Layer, this Layer defines the external interface of the application. 
+
+![alt text](docs/media/architecture.png)
 
 ### Technology Stack
 
@@ -34,7 +41,7 @@ structured into well-defined layers with separation of concerns.
 - **Databases**: PostgreSQL for primary data storage, Redis for caching and
   real-time updates.
 
-## Directory Structure
+### Directory Structure
 
 - `backend-go/`: Go backend implementation.
 - `backend-dart/`: Dart backend implementation.
@@ -45,6 +52,7 @@ structured into well-defined layers with separation of concerns.
 ## Getting Started
 
 ### Prerequisites
+All prerequistes are already bundled with the devcontainer
 
 - Node.js (for the React frontend)
 - Go (for the Go backend)
@@ -131,6 +139,54 @@ attribute was injected in the dom `data-lt-installed="true"`
 ![alt text](docs/media/image.png)
 
 
+## Roadmap
+
+1. Phase: Initialize
+- Definition with Spec
+- Initialize Repository
+2. Phase: Initial Setup
+- Frontend with NextJS and Deno
+- Backend
+   - Dart
+   - Go
+- Dev-Container
+3. Phase: Implement backends (first Iteration)
+Goal: Implement working MVPs in GO and Dart to showoff functional programming in both languages
+- Frontend foundation (basic setup, not connected to backend)
+- Backend foundation
+   - Dart
+   - Go
+- Domain 
+  - Entities
+  - Repositories
+  - DataSources
+- Application (Business Logic)
+  - Services (Endpoints)
+  - DTOs
+  - Authentication with JWT Token
+  - Simple Authorization
+- Dart Testing
+  - Rpository Tests
+  - API Handler Tests
+
+progress is currently here
+
+3. Phase: Web UI (second Iteration)
+- Introduce Permission System
+- Reporting for TimeEntries (with MapReduce...)
+- Frontend
+  - Timetracker
+  - Manage Projects
+  - Manage TimeEntries
+  - Manage Tasks
+  - View Reports
+
+Ideas for Advanced Features and further Iterations
+- Exports (Excel, PDF)
+- Maybe Billing
+- Multitennant
+
+
 ## Resources
 
 ### Zen of Go