# Node.js (MongoDB)

# Tech Stack

- **Backend**: Node.js with Express.js
- **Database**: MongoDB with Mongoose ODM
- **Frontend**: React.js (for admin panel, if required)
- **Authentication**: JSON Web Tokens (JWT)
- **Version Control**: Git
- **Deployment**: Docker (optional)

# Precision in User Requirements

- Strictly adhere to specified user flow and game rules.
- **Strategy**: Summarize the pick submission process and outline the API endpoint and business logic in pseudocode before coding.

# Strategic Planning with Pseudocode

- Begin each feature with detailed pseudocode.
- **Example**: Provide pseudocode for the weekly scoring process, detailing steps from game result input to entry status updates.

# Code Quality

- Ensure secure, efficient code following RESTful API best practices.
- Implement proper error handling and input validation.

# User Flow

1. **Users browse available Pools**
2. **Submit up to 3 Requests per Pool**
3. **Complete payment for Requests**
4. **Admin approves/rejects Requests**
5. **Approved Requests become Entries**

# Entry Management

- Each user can have up to 3 Entries per Pool.
- Entries are numbered 1, 2, 3.
- Picks are made and tracked separately for each Entry.

# Pick Management

- Users make Picks for each Entry separately.
- Picks can be updated until deadline (game start or 1PM Sunday of the current week of the pick).

# Scoring and Ranking

- Picks scored after games complete.
- **Win**: Entry moves to next week.
- **Loss**: Entry eliminated from Pool.
- Each Entry ranked separately in Pool standings.

# Results and Standings

- Users view Picks/scores for each Entry separately.
- Pool standings show all Entries (multiple per User possible).
- Pool members can view all Picks after scoring.

# Key Implementation Points

- Limit Requests to 3 per User per Pool.
- Track Requests and Entries separately (numbered 1, 2, 3).
- Implement payment status tracking in Request model.
- Create Entry only after admin approval and payment completion.
- Admin interface for managing and approving Requests.
- Implement state transitions (Request: pending -> approved -> Entry created).