# middleware Specification

## Purpose
TBD - created by archiving change add-meeting-assistant-mvp. Update Purpose after archive.
## Requirements
### Requirement: FastAPI Server Configuration
The middleware server SHALL be implemented using Python FastAPI framework with environment-based configuration.

#### Scenario: Server startup with valid configuration
- **WHEN** the server starts with valid .env file containing DB_HOST, DB_PORT, DB_USER, DB_PASS, DB_NAME, DIFY_API_URL, DIFY_API_KEY
- **THEN** the server SHALL start successfully and accept connections

#### Scenario: Server startup with missing configuration
- **WHEN** the server starts with missing required environment variables
- **THEN** the server SHALL fail to start with descriptive error message

### Requirement: Database Connection Pool
The middleware server SHALL maintain a connection pool to the MySQL database at mysql.theaken.com:33306.

#### Scenario: Database connection success
- **WHEN** the server connects to MySQL with valid credentials
- **THEN** a connection pool SHALL be established and queries SHALL execute successfully

#### Scenario: Database connection failure
- **WHEN** the database is unreachable
- **THEN** the server SHALL return HTTP 503 with error details for affected endpoints

### Requirement: Table Initialization
The middleware server SHALL ensure all required tables exist on startup with the `meeting_` prefix.

#### Scenario: Tables created on first run
- **WHEN** the server starts and tables do not exist
- **THEN** the server SHALL create meeting_users, meeting_records, meeting_conclusions, and meeting_action_items tables

#### Scenario: Tables already exist
- **WHEN** the server starts and tables already exist
- **THEN** the server SHALL skip table creation and continue normally

### Requirement: CORS Configuration
The middleware server SHALL allow cross-origin requests from the Electron client.

#### Scenario: CORS preflight request
- **WHEN** Electron client sends OPTIONS request
- **THEN** the server SHALL respond with appropriate CORS headers allowing the request