integration-google-meet-sdd-software-design-document

---

title: 'Software Design Document: Google Meet Integration' type: reference component_type: reference version: 1.0.0 created: '2025-12-27' updated: '2025-12-27' status: draft tags:

• ai-ml
• authentication
• deployment
• security
• testing
• api
• architecture
• automation summary: 'Software Design Document: Google Meet Integration Document ID: CODITECT-MEET-SDD-001 Version: 2.0.0 Status: Draft Last Updated: December 17, 2025 Author: CODITECT Architecture Team --- Executive Summary This Software Design Document (SDD) defines...' moe_confidence: 0.950 moe_classified: 2025-12-31

---

Software Design Document: Google Meet Integration

Document ID: CODITECT-MEET-SDD-001 Version: 2.0.0 Status: Draft Last Updated: December 17, 2025 Author: CODITECT Architecture Team

---

1. Executive Summary

1.1 Purpose

This Software Design Document (SDD) defines the architecture, components, and implementation approach for integrating Google Meet capabilities into the CODITECT platform as an optional, zero-cost module.

1.2 Scope

The Google Meet Integration module provides:

• Meeting scheduling via Google Calendar API
• Meeting space creation via Meet REST API
• Post-meeting transcript and recording retrieval
• Event-driven automation via Workspace Events API
• Seamless integration with CODITECT's AI processing pipeline

1.3 Design Principles

1. Zero External Cost - Use only free-tier APIs and open-source components
2. Optional Component - Activatable only when customer requires meeting solutions
3. Platform Agnostic - Abstract interfaces for multi-provider support
4. CODITECT Native - Follows framework patterns, symlink architecture, component activation

---

2. System Architecture

2.1 High-Level Architecture

┌─────────────────────────────────────────────────────────────────────┐
│                         CODITECT Platform                            │
├─────────────────────────────────────────────────────────────────────┤
│                                                                      │
│  ┌────────────────────────────────────────────────────────────────┐ │
│  │ Meeting Integration Layer (Optional Component)                  │ │
│  │                                                                 │ │
│  │  ┌─────────────────┐  ┌─────────────────┐  ┌────────────────┐ │ │
│  │  │ Provider        │  │ Google Meet     │  │ Zoom Provider  │ │ │
│  │  │ Interface       │◄─┤ Provider        │  │ (Future)       │ │ │
│  │  │ (Abstract)      │  │ (Concrete)      │  │                │ │ │
│  │  └────────┬────────┘  └────────┬────────┘  └────────────────┘ │ │
│  │           │                    │                               │ │
│  │  ┌────────▼────────────────────▼───────────────────────────┐  │ │
│  │  │ Meeting Service Orchestrator                             │  │ │
│  │  │ - Schedule meetings                                      │  │ │
│  │  │ - Retrieve artifacts                                     │  │ │
│  │  │ - Process events                                         │  │ │
│  │  └─────────────────────────────────────────────────────────┘  │ │
│  └────────────────────────────────────────────────────────────────┘ │
│                                                                      │
│  ┌────────────────────────────────────────────────────────────────┐ │
│  │ CODITECT Core Services                                          │ │
│  │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐             │ │
│  │ │ AI Pipeline  │ │ Context DB   │ │ Memory System│             │ │
│  │ └──────────────┘ └──────────────┘ └──────────────┘             │ │
│  └────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────┘

2.2 Component Architecture

google-meet-integration/
├── src/
│   ├── __init__.py
│   ├── provider.py              # GoogleMeetProvider implementation
│   ├── client.py                # API client wrapper
│   ├── auth.py                  # OAuth 2.0 authentication
│   ├── models/
│   │   ├── __init__.py
│   │   ├── meeting.py           # Meeting data models
│   │   ├── participant.py       # Participant models
│   │   ├── transcript.py        # Transcript models
│   │   └── recording.py         # Recording models
│   ├── services/
│   │   ├── __init__.py
│   │   ├── scheduler.py         # Meeting scheduling service
│   │   ├── artifacts.py         # Transcript/recording retrieval
│   │   └── events.py            # Webhook/event handling
│   └── utils/
│       ├── __init__.py
│       ├── rate_limiter.py      # API rate limiting
│       └── retry.py             # Exponential backoff
├── tests/
│   ├── __init__.py
│   ├── test_provider.py
│   ├── test_scheduler.py
│   └── test_artifacts.py
├── config/
│   ├── default.yaml
│   └── scopes.yaml
└── docs/
    ├── sdd-software-design-document.md
    ├── tdd-technical-design-document.md
    └── adrs/

---

3. Component Design

3.1 Provider Interface (Abstract)

from abc import ABC, abstractmethod
from typing import Optional, List
from datetime import datetime

class MeetingProviderInterface(ABC):
    """Abstract interface for meeting providers (Google Meet, Zoom, etc.)"""

    @abstractmethod
    async def authenticate(self, credentials: dict) -> bool:
        """Authenticate with the provider"""
        pass

    @abstractmethod
    async def create_meeting(
        self,
        title: str,
        start_time: datetime,
        duration_minutes: int,
        attendees: Optional[List[str]] = None,
        **kwargs
    ) -> 'Meeting':
        """Create a new meeting"""
        pass

    @abstractmethod
    async def get_meeting(self, meeting_id: str) -> 'Meeting':
        """Get meeting details"""
        pass

    @abstractmethod
    async def list_meetings(
        self,
        start_date: Optional[datetime] = None,
        end_date: Optional[datetime] = None
    ) -> List['Meeting']:
        """List meetings in date range"""
        pass

    @abstractmethod
    async def get_transcript(self, meeting_id: str) -> Optional['Transcript']:
        """Get meeting transcript if available"""
        pass

    @abstractmethod
    async def get_recording(self, meeting_id: str) -> Optional['Recording']:
        """Get meeting recording if available"""
        pass

    @abstractmethod
    async def get_participants(self, meeting_id: str) -> List['Participant']:
        """Get meeting participants"""
        pass

3.2 Google Meet Provider

class GoogleMeetProvider(MeetingProviderInterface):
    """Google Meet implementation of MeetingProviderInterface"""

    def __init__(self, config: GoogleMeetConfig):
        self.config = config
        self.calendar_client = None
        self.meet_client = None
        self._authenticated = False

    async def authenticate(self, credentials: dict) -> bool:
        """
        Authenticate using OAuth 2.0

        Supports:
        - User OAuth (authorization code flow)
        - Service Account (domain-wide delegation)
        """
        # Implementation details in TDD
        pass

    async def create_meeting(
        self,
        title: str,
        start_time: datetime,
        duration_minutes: int,
        attendees: Optional[List[str]] = None,
        auto_recording: bool = False,
        auto_transcription: bool = False,
        **kwargs
    ) -> Meeting:
        """
        Create meeting via Calendar API with Meet conferencing

        Rate Limits:
        - spaces.create: 100/min per project, 10/min per user
        """
        pass

3.3 Data Models

from dataclasses import dataclass
from datetime import datetime
from typing import Optional, List
from enum import Enum

class MeetingState(Enum):
    SCHEDULED = "scheduled"
    IN_PROGRESS = "in_progress"
    ENDED = "ended"
    CANCELLED = "cancelled"

@dataclass
class Meeting:
    id: str
    provider: str  # "google_meet" | "zoom"
    title: str
    start_time: datetime
    end_time: datetime
    duration_minutes: int
    join_url: str
    meeting_code: Optional[str]
    state: MeetingState
    organizer_email: str
    attendees: List[str]
    has_recording: bool = False
    has_transcript: bool = False
    metadata: dict = None

@dataclass
class Transcript:
    id: str
    meeting_id: str
    state: str  # "STARTED" | "ENDED" | "FILE_GENERATED"
    start_time: datetime
    end_time: Optional[datetime]
    entries: List['TranscriptEntry']
    language: str = "en-US"

@dataclass
class TranscriptEntry:
    id: str
    participant_id: str
    participant_name: str
    text: str
    start_time: datetime
    end_time: datetime
    confidence: Optional[float] = None

@dataclass
class Recording:
    id: str
    meeting_id: str
    state: str
    start_time: datetime
    end_time: Optional[datetime]
    file_uri: Optional[str]  # Google Drive URI
    duration_seconds: Optional[int]
    file_size_bytes: Optional[int]

@dataclass
class Participant:
    id: str
    meeting_id: str
    display_name: str
    email: Optional[str]
    join_time: datetime
    leave_time: Optional[datetime]
    duration_seconds: Optional[int]

---

4. API Design

4.1 Internal API (Python)

# Usage example
from coditect.integrations.google_meet import GoogleMeetProvider

async def schedule_team_meeting():
    provider = GoogleMeetProvider(config)
    await provider.authenticate(credentials)

    meeting = await provider.create_meeting(
        title="Sprint Planning",
        start_time=datetime(2025, 12, 20, 10, 0),
        duration_minutes=60,
        attendees=["team@company.com"],
        auto_transcription=True
    )

    print(f"Join URL: {meeting.join_url}")
    return meeting

4.2 REST API (Optional HTTP Interface)

openapi: 3.0.0
info:
  title: CODITECT Meeting Integration API
  version: 1.0.0

paths:
  /api/v1/meetings:
    post:
      summary: Create a new meeting
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateMeetingRequest'
      responses:
        '201':
          description: Meeting created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Meeting'

  /api/v1/meetings/{meetingId}:
    get:
      summary: Get meeting details
      parameters:
        - name: meetingId
          in: path
          required: true
          schema:
            type: string

  /api/v1/meetings/{meetingId}/transcript:
    get:
      summary: Get meeting transcript

  /api/v1/meetings/{meetingId}/recording:
    get:
      summary: Get meeting recording

---

5. Authentication Design

5.1 OAuth 2.0 Flow

┌─────────┐          ┌─────────────┐          ┌─────────────┐
│  User   │          │  CODITECT   │          │   Google    │
└────┬────┘          └──────┬──────┘          └──────┬──────┘
     │                      │                        │
     │  1. Request Meeting  │                        │
     │─────────────────────>│                        │
     │                      │                        │
     │  2. Redirect to Auth │                        │
     │<─────────────────────│                        │
     │                      │                        │
     │  3. Authorize        │                        │
     │───────────────────────────────────────────────>
     │                      │                        │
     │  4. Auth Code        │                        │
     │<──────────────────────────────────────────────│
     │                      │                        │
     │  5. Code             │                        │
     │─────────────────────>│                        │
     │                      │  6. Exchange Code      │
     │                      │───────────────────────>│
     │                      │                        │
     │                      │  7. Access Token       │
     │                      │<───────────────────────│
     │                      │                        │
     │  8. Meeting Created  │                        │
     │<─────────────────────│                        │

5.2 Token Management

@dataclass
class TokenStore:
    """Secure token storage with automatic refresh"""

    access_token: str
    refresh_token: str
    expires_at: datetime
    scopes: List[str]

    def is_expired(self) -> bool:
        return datetime.utcnow() >= self.expires_at - timedelta(minutes=5)

    async def refresh(self, client: OAuth2Client) -> 'TokenStore':
        """Refresh access token using refresh token"""
        pass

5.3 Required Scopes

# config/scopes.yaml
google_meet:
  # Minimum required scopes
  required:
    - https://www.googleapis.com/auth/calendar.events
    - https://www.googleapis.com/auth/meetings.space.readonly

  # Additional scopes for full functionality
  optional:
    - https://www.googleapis.com/auth/meetings.space.created
    - https://www.googleapis.com/auth/meetings.space.settings
    - https://www.googleapis.com/auth/drive.readonly  # For recordings

---

6. Error Handling

6.1 Error Hierarchy

class MeetingIntegrationError(Exception):
    """Base exception for meeting integration"""
    pass

class AuthenticationError(MeetingIntegrationError):
    """Authentication failed"""
    pass

class RateLimitError(MeetingIntegrationError):
    """API rate limit exceeded"""
    def __init__(self, retry_after: int):
        self.retry_after = retry_after

class ProviderError(MeetingIntegrationError):
    """Provider-specific error"""
    def __init__(self, provider: str, code: str, message: str):
        self.provider = provider
        self.code = code
        self.message = message

class TranscriptNotAvailableError(MeetingIntegrationError):
    """Transcript not yet available or not enabled"""
    pass

class RecordingNotAvailableError(MeetingIntegrationError):
    """Recording not yet available or not enabled"""
    pass

6.2 Retry Strategy

class ExponentialBackoff:
    """Exponential backoff with jitter for rate limiting"""

    def __init__(
        self,
        base_delay: float = 1.0,
        max_delay: float = 64.0,
        max_retries: int = 5
    ):
        self.base_delay = base_delay
        self.max_delay = max_delay
        self.max_retries = max_retries

    def get_delay(self, attempt: int) -> float:
        delay = min(self.base_delay * (2 ** attempt), self.max_delay)
        jitter = random.uniform(0, delay * 0.1)
        return delay + jitter

---

7. Rate Limiting

7.1 Google Meet API Limits

Operation	Per Project	Per User	Strategy
Read requests	6,000/min	600/min	Token bucket
Write requests	1,000/min	100/min	Token bucket
spaces.create	100/min	10/min	Token bucket

7.2 Rate Limiter Implementation

class TokenBucketRateLimiter:
    """Token bucket rate limiter with async support"""

    def __init__(self, rate: float, capacity: int):
        self.rate = rate  # tokens per second
        self.capacity = capacity
        self.tokens = capacity
        self.last_update = time.monotonic()
        self._lock = asyncio.Lock()

    async def acquire(self, tokens: int = 1) -> float:
        """
        Acquire tokens, waiting if necessary.
        Returns wait time in seconds.
        """
        async with self._lock:
            self._refill()
            if self.tokens >= tokens:
                self.tokens -= tokens
                return 0.0
            else:
                wait_time = (tokens - self.tokens) / self.rate
                await asyncio.sleep(wait_time)
                self.tokens = 0
                return wait_time

---

8. Integration with CODITECT

8.1 Component Activation

# config/component-activation-status.json entry
{
    "type": "integration",
    "name": "google-meet",
    "path": "integrations/google-meet",
    "activated": false,
    "version": "1.0.0",
    "status": "available",
    "reason": "Optional meeting integration",
    "dependencies": [
        "google-auth",
        "google-api-python-client"
    ]
}

8.2 AI Pipeline Integration

class MeetingAIProcessor:
    """Process meeting artifacts through CODITECT AI pipeline"""

    async def process_transcript(
        self,
        transcript: Transcript,
        options: ProcessingOptions
    ) -> MeetingInsights:
        """
        Process transcript through AI pipeline

        Outputs:
        - Summary
        - Action items
        - Key decisions
        - Sentiment analysis
        """
        # Connect to CODITECT's existing AI infrastructure
        pass

    async def store_to_context_db(
        self,
        meeting: Meeting,
        insights: MeetingInsights
    ) -> None:
        """Store meeting insights in CODITECT context database"""
        pass

---

9. Security Considerations

9.1 Credential Storage

• OAuth tokens encrypted at rest using AES-256
• Refresh tokens stored in secure credential store
• No credentials in code or configuration files
• Support for Google Cloud Secret Manager

9.2 Data Privacy

• Transcript data processed locally by default
• Optional cloud AI processing with explicit consent
• GDPR-compliant data retention policies
• Audit logging for all API access

9.3 Access Control

• Role-based access to meeting data
• Per-user OAuth scopes
• Admin controls for organization-wide settings

---

10. Testing Strategy

10.1 Test Levels

Level	Coverage	Tools
Unit	80%+	pytest, pytest-asyncio
Integration	Key flows	pytest, mocks
E2E	Critical paths	pytest, real API (sandbox)

10.2 Mock Strategy

@pytest.fixture
def mock_google_meet_client():
    """Mock Google Meet API client for unit tests"""
    with patch('google.apps.meet_v2.SpacesServiceAsyncClient') as mock:
        mock.return_value.create_space.return_value = Space(
            name="spaces/abc123",
            meeting_uri="https://meet.google.com/abc-defg-hij",
            meeting_code="abc-defg-hij"
        )
        yield mock

---

11. Deployment

11.1 Dependencies

# pyproject.toml
[project.optional-dependencies]
google-meet = [
    "google-auth>=2.0.0",
    "google-auth-oauthlib>=1.0.0",
    "google-api-python-client>=2.0.0",
    "google-apps-meet>=0.1.0",
]

11.2 Configuration

# config/default.yaml
google_meet:
  enabled: false  # Disabled by default
  api_version: "v2"
  rate_limits:
    read_per_minute: 6000
    write_per_minute: 1000
    create_per_minute: 100
  retry:
    max_attempts: 5
    base_delay: 1.0
    max_delay: 64.0
  cache:
    enabled: true
    ttl_seconds: 300

---

12. Appendices

12.1 Glossary

Term	Definition
Space	A Google Meet meeting room (can be reused)
Conference Record	A specific instance of a meeting
Artifact	Generated files (recordings, transcripts)

12.2 References

• Google Meet REST API
• Google Calendar API
• CODITECT Component Activation Guide

---

Document Control:

• Created: December 17, 2025
• Review Cycle: Quarterly
• Owner: CODITECT Architecture Team