WIP: 1.0 architecture experiment (pre-stabilization)

CHANGELOG.md

@@ -1,10 +1,99 @@
 # Changelog
 
-All notable changes to Seismo Fleet Manager will be documented in this file.
+All notable changes to Terra-View will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.0] - 2026-01-09
+
+### Added
+- **Unified Modular Monolith Architecture**: Complete architectural refactoring to modular monolith pattern
+  - **Three Feature Modules**: Seismo (seismograph fleet), SLM (sound level meters), UI (shared templates/static)
+  - **Module Isolation**: Each module has its own database, models, services, and routers
+  - **Shared Infrastructure**: Common utilities and API aggregation layer
+  - **Multi-Container Deployment**: Three Docker containers (terra-view, sfm, slmm) built from single codebase
+- **SLMM Integration**: Sound Level Meter Manager fully integrated as `app/slm/` module
+  - Migrated from separate repository to unified codebase
+  - Complete NL43 device management API (`/api/nl43/*`)
+  - Database models for NL43Config and NL43Status
+  - NL43Client service for device communication
+  - FTP, TCP, and web interface support for NL43 devices
+- **SLM Dashboard API Layer**: New dashboard endpoints bridge UI and device APIs
+  - `GET /api/slm-dashboard/stats` - Aggregate statistics (total units, online/offline, measuring/idle)
+  - `GET /api/slm-dashboard/units` - List all units with latest status
+  - `GET /api/slm-dashboard/live-view/{unit_id}` - Real-time measurement data
+  - `GET /api/slm-dashboard/config/{unit_id}` - Retrieve unit configuration
+  - `POST /api/slm-dashboard/config/{unit_id}` - Update unit configuration
+  - `POST /api/slm-dashboard/control/{unit_id}/{action}` - Send control commands (start, stop, pause, resume, reset, sleep, wake)
+  - `GET /api/slm-dashboard/test-modem/{unit_id}` - Test device connectivity
+- **Repository Rebranding**: Renamed from `seismo-fleet-manager` to `terra-view`
+  - Reflects unified platform nature (seismo + SLM + future modules)
+  - Git remote updated to `terra-view.git`
+  - All references updated throughout codebase
+
+### Changed
+- **Project Structure**: Complete reorganization following modular monolith pattern
+  - `app/seismo/` - Seismograph fleet module (formerly `backend/`)
+  - `app/slm/` - Sound level meter module (integrated from SLMM)
+  - `app/ui/` - Shared templates and static assets
+  - `app/api/` - Cross-module API aggregation layer
+  - Removed `backend/` and `templates/` directories
+- **Import Paths**: All imports updated from `backend.*` to `app.seismo.*` or `app.slm.*`
+- **Database Initialization**: Each module initializes its own database tables
+  - Seismo database: `app/seismo/database.py`
+  - SLM database: `app/slm/database.py`
+- **Docker Architecture**: Three-container deployment from single codebase
+  - `terra-view` (port 8001): Main UI/orchestrator with all modules
+  - `sfm` (port 8002): Seismograph Fleet Module API
+  - `slmm` (port 8100): Sound Level Meter Manager API
+  - All containers built from same unified codebase with different entry points
+
+### Fixed
+- **Template Path Issues**: Fixed seismo dashboard template references
+  - Updated `app/seismo/routers/dashboard.py` to use `app/ui/templates` directory
+  - Resolved 404 errors for `partials/benched_table.html` and `partials/active_table.html`
+- **Module Import Errors**: Corrected SLMM module structure
+  - Fixed `app/slm/main.py` to import from `app.slm.routers` instead of `app.routers`
+  - Updated all SLMM internal imports to use `app.slm.*` namespace
+- **Docker Build Issues**: Resolved file permission problems
+  - Fixed dashboard.py permissions for Docker COPY operations
+  - Ensured all source files readable during container builds
+
+### Technical Details
+- **Modular Monolith Benefits**:
+  - Single repository for easier development and deployment
+  - Module boundaries enforced through folder structure
+  - Shared dependencies managed in single requirements.txt
+  - Independent database schemas per module
+  - Clean separation of concerns with explicit module APIs
+- **Migration Path**: Existing installations automatically migrate
+  - Import path updates applied programmatically
+  - Database schemas remain compatible
+  - No data migration required
+- **Module Structure**: Each module follows consistent pattern
+  - `database.py` - SQLAlchemy models and session management
+  - `models.py` - Pydantic schemas and database models
+  - `routers.py` - FastAPI route definitions
+  - `services.py` - Business logic and external integrations
+- **Container Communication**: Containers use host networking
+  - terra-view proxies to sfm and slmm containers
+  - Environment variables configure API URLs
+  - Health checks ensure container availability
+
+### Migration Notes
+- **Breaking Changes**: Import paths changed for all modules
+  - Old: `from backend.models import RosterUnit`
+  - New: `from app.seismo.models import RosterUnit`
+- **Configuration Updates**: Environment variables for multi-container setup
+  - `SFM_API_URL=http://localhost:8002` - SFM backend endpoint
+  - `SLMM_API_URL=http://localhost:8100` - SLMM backend endpoint
+  - `MODULE_MODE=sfm|slmm` - Future flag for API-only containers
+- **Repository Migration**: Update git remotes for renamed repository
+  ```bash
+  git remote set-url origin ssh://git@10.0.0.2:2222/serversdown/terra-view.git
+  ```
+
 ## [0.4.2] - 2026-01-05
 
 ### Added

README.md

@@ -1,5 +1,31 @@
-# Seismo Fleet Manager v0.4.2
-Backend API and HTMX-powered web interface for managing a mixed fleet of seismographs and field modems. Track deployments, monitor health in real time, merge roster intent with incoming telemetry, and control your fleet through a unified database and dashboard.
+# Terra-View v0.5.0
+Unified platform for managing seismograph fleets and sound level meter deployments. Built as a modular monolith with independent feature modules (Seismo, SLM) sharing a common UI layer. Track deployments, monitor health in real time, merge roster intent with incoming telemetry, and control your entire fleet through a unified database and dashboard.
+
+## Architecture
+
+Terra-View follows a **modular monolith** architecture with independent feature modules in a single codebase:
+
+- **app/seismo/** - Seismograph Fleet Module (SFM)
+  - Device roster and deployment tracking
+  - Series 3/4 telemetry ingestion
+  - Status monitoring (OK/Pending/Missing)
+  - Photo management and location tracking
+- **app/slm/** - Sound Level Meter Manager (SLMM)
+  - NL43 device configuration and control
+  - Real-time measurement monitoring
+  - TCP/FTP/Web interface support
+  - Dashboard statistics and unit management
+- **app/ui/** - Shared UI layer
+  - Templates, static assets, and common components
+  - Progressive Web App (PWA) support
+- **app/api/** - API aggregation layer
+  - Cross-module endpoints
+  - Future unified dashboard APIs
+
+**Multi-Container Deployment**: Three Docker containers built from the same codebase:
+- `terra-view` (port 8001) - Main UI with all modules integrated
+- `sfm` (port 8002) - Seismo API backend
+- `slmm` (port 8100) - SLM API backend
 
 ## Features
 

app/api/slmm_proxy.py

@@ -0,0 +1,83 @@
+"""
+SLMM API Proxy
+Forwards /api/slmm/* requests to the SLMM backend service
+"""
+import httpx
+import logging
+from fastapi import APIRouter, Request, Response, WebSocket
+from fastapi.responses import StreamingResponse
+from app.core.config import SLMM_API_URL
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api/slmm", tags=["slmm-proxy"])
+
+
+@router.api_route("/{path:path}", methods=["GET", "POST", "PUT", "DELETE", "PATCH"])
+async def proxy_slmm_request(path: str, request: Request):
+    """Proxy HTTP requests to SLMM backend"""
+    # Build target URL - rewrite /api/slmm/* to /api/nl43/*
+    target_url = f"{SLMM_API_URL}/api/nl43/{path}"
+
+    # Get query params
+    query_string = str(request.url.query)
+    if query_string:
+        target_url += f"?{query_string}"
+
+    logger.info(f"Proxying {request.method} {target_url}")
+
+    # Read request body
+    body = await request.body()
+
+    # Forward headers (exclude host)
+    headers = {
+        key: value
+        for key, value in request.headers.items()
+        if key.lower() not in ['host', 'content-length']
+    }
+
+    async with httpx.AsyncClient(timeout=30.0) as client:
+        try:
+            # Make proxied request
+            response = await client.request(
+                method=request.method,
+                url=target_url,
+                content=body,
+                headers=headers
+            )
+
+            # Return response
+            return Response(
+                content=response.content,
+                status_code=response.status_code,
+                headers=dict(response.headers)
+            )
+        except httpx.RequestError as e:
+            logger.error(f"Proxy request failed: {e}")
+            return Response(
+                content=f'{{"detail": "SLMM backend unavailable: {str(e)}"}}',
+                status_code=502,
+                media_type="application/json"
+            )
+
+
+@router.websocket("/{unit_id}/live")
+async def proxy_slmm_websocket(websocket: WebSocket, unit_id: str):
+    """Proxy WebSocket connections to SLMM backend for live data streaming"""
+    await websocket.accept()
+
+    # Build WebSocket URL
+    ws_protocol = "ws" if "localhost" in SLMM_API_URL or "127.0.0.1" in SLMM_API_URL else "wss"
+    ws_url = SLMM_API_URL.replace("http://", f"{ws_protocol}://").replace("https://", f"{ws_protocol}://")
+    ws_target = f"{ws_url}/api/slmm/{unit_id}/live"
+
+    logger.info(f"Proxying WebSocket to {ws_target}")
+
+    async with httpx.AsyncClient() as client:
+        try:
+            async with client.stream("GET", ws_target) as response:
+                async for chunk in response.aiter_bytes():
+                    await websocket.send_bytes(chunk)
+        except Exception as e:
+            logger.error(f"WebSocket proxy error: {e}")
+            await websocket.close(code=1011, reason=f"Backend error: {str(e)}")

app/core/config.py

@@ -12,6 +12,8 @@ ENVIRONMENT = os.getenv("ENVIRONMENT", "production")
 PORT = int(os.getenv("PORT", 8001))
 
 # External Services
+# Terra-View is a unified application with seismograph logic built-in
+# The only external HTTP dependency is SLMM for NL-43 device communication
 SLMM_API_URL = os.getenv("SLMM_API_URL", "http://localhost:8100")
 
 # Database URLs (feature-specific)

app/main.py

@@ -34,11 +34,13 @@ from app.seismo.routers import (
     activity as seismo_activity,
     seismo_dashboard as seismo_seismo_dashboard,
     settings as seismo_settings,
+    partials as seismo_partials,
 )
 from app.seismo import routes as seismo_legacy_routes
 
 # Import feature module routers (SLM)
 from app.slm.routers import router as slm_router
+from app.slm.dashboard import router as slm_dashboard_router
 
 # Import API aggregation layer (placeholder for now)
 from app.api import dashboard as api_dashboard
@@ -48,6 +50,9 @@ from app.api import roster as api_roster
 from app.seismo.database import engine as seismo_engine, Base as SeismoBase
 SeismoBase.metadata.create_all(bind=seismo_engine)
 
+from app.slm.database import engine as slm_engine, Base as SlmBase
+SlmBase.metadata.create_all(bind=slm_engine)
+
 # Initialize FastAPI app
 app = FastAPI(
     title=APP_NAME,
@@ -100,10 +105,16 @@ app.include_router(seismo_dashboard_tabs.router)
 app.include_router(seismo_activity.router)
 app.include_router(seismo_seismo_dashboard.router)
 app.include_router(seismo_settings.router)
+app.include_router(seismo_partials.router, prefix="/partials")
 app.include_router(seismo_legacy_routes.router)
 
 # SLM Feature Module APIs
 app.include_router(slm_router)
+app.include_router(slm_dashboard_router)
+
+# SLMM Backend Proxy (forward /api/slmm/* to SLMM service)
+from app.api import slmm_proxy
+app.include_router(slmm_proxy.router)
 
 # API Aggregation Layer (future cross-feature endpoints)
 # app.include_router(api_dashboard.router)  # TODO: Implement aggregation

app/seismo/routers/dashboard.py

@@ -4,7 +4,7 @@ from fastapi.templating import Jinja2Templates
 from app.seismo.services.snapshot import emit_status_snapshot
 
 router = APIRouter()
-templates = Jinja2Templates(directory="templates")
+templates = Jinja2Templates(directory="app/ui/templates")
 
 
 @router.get("/dashboard/active")

app/seismo/routers/partials.py

@@ -0,0 +1,140 @@
+"""
+Partial routes for HTMX dynamic content loading.
+These routes return HTML fragments that are loaded into the page via HTMX.
+"""
+from fastapi import APIRouter, Request
+from fastapi.responses import HTMLResponse
+from fastapi.templating import Jinja2Templates
+
+from app.seismo.services.snapshot import emit_status_snapshot
+
+router = APIRouter()
+templates = Jinja2Templates(directory="app/ui/templates")
+
+
+@router.get("/unknown-emitters", response_class=HTMLResponse)
+async def get_unknown_emitters(request: Request):
+    """
+    Returns HTML partial with unknown emitters (units reporting but not in roster).
+    Called periodically via HTMX (every 10s) from the roster page.
+    """
+    snapshot = emit_status_snapshot()
+
+    # Convert unknown units dict to list and add required fields
+    unknown_list = []
+    for unit_id, unit_data in snapshot.get("unknown", {}).items():
+        unknown_list.append({
+            "id": unit_id,
+            "status": unit_data["status"],
+            "age": unit_data["age"],
+            "fname": unit_data.get("fname", ""),
+        })
+
+    # Sort by ID for consistent display
+    unknown_list.sort(key=lambda x: x["id"])
+
+    return templates.TemplateResponse(
+        "partials/unknown_emitters.html",
+        {
+            "request": request,
+            "unknown_units": unknown_list
+        }
+    )
+
+
+@router.get("/devices-all", response_class=HTMLResponse)
+async def get_all_devices(request: Request):
+    """
+    Returns HTML partial with all devices (deployed, benched, retired, ignored).
+    Called on page load and when filters are applied.
+    """
+    snapshot = emit_status_snapshot()
+
+    # Combine all units from different buckets
+    all_units = []
+
+    # Add active units (deployed)
+    for unit_id, unit_data in snapshot.get("active", {}).items():
+        unit_info = {
+            "id": unit_id,
+            "status": unit_data["status"],
+            "age": unit_data["age"],
+            "last_seen": unit_data.get("last", ""),
+            "fname": unit_data.get("fname", ""),
+            "deployed": True,
+            "retired": False,
+            "ignored": False,
+            "note": unit_data.get("note", ""),
+            "device_type": unit_data.get("device_type", "seismograph"),
+            "location": unit_data.get("location", ""),
+            "address": unit_data.get("address", ""),
+            "coordinates": unit_data.get("coordinates", ""),
+            "last_calibrated": unit_data.get("last_calibrated"),
+            "next_calibration_due": unit_data.get("next_calibration_due"),
+            "deployed_with_modem_id": unit_data.get("deployed_with_modem_id"),
+            "ip_address": unit_data.get("ip_address"),
+            "phone_number": unit_data.get("phone_number"),
+            "hardware_model": unit_data.get("hardware_model"),
+        }
+        all_units.append(unit_info)
+
+    # Add benched units (not deployed, not retired)
+    for unit_id, unit_data in snapshot.get("benched", {}).items():
+        unit_info = {
+            "id": unit_id,
+            "status": unit_data["status"],
+            "age": unit_data["age"],
+            "last_seen": unit_data.get("last", ""),
+            "fname": unit_data.get("fname", ""),
+            "deployed": False,
+            "retired": False,
+            "ignored": False,
+            "note": unit_data.get("note", ""),
+            "device_type": unit_data.get("device_type", "seismograph"),
+            "location": unit_data.get("location", ""),
+            "address": unit_data.get("address", ""),
+            "coordinates": unit_data.get("coordinates", ""),
+            "last_calibrated": unit_data.get("last_calibrated"),
+            "next_calibration_due": unit_data.get("next_calibration_due"),
+            "deployed_with_modem_id": unit_data.get("deployed_with_modem_id"),
+            "ip_address": unit_data.get("ip_address"),
+            "phone_number": unit_data.get("phone_number"),
+            "hardware_model": unit_data.get("hardware_model"),
+        }
+        all_units.append(unit_info)
+
+    # Add retired units
+    for unit_id, unit_data in snapshot.get("retired", {}).items():
+        unit_info = {
+            "id": unit_id,
+            "status": "Retired",
+            "age": unit_data["age"],
+            "last_seen": unit_data.get("last", ""),
+            "fname": unit_data.get("fname", ""),
+            "deployed": False,
+            "retired": True,
+            "ignored": False,
+            "note": unit_data.get("note", ""),
+            "device_type": unit_data.get("device_type", "seismograph"),
+            "location": unit_data.get("location", ""),
+            "address": unit_data.get("address", ""),
+            "coordinates": unit_data.get("coordinates", ""),
+            "last_calibrated": unit_data.get("last_calibrated"),
+            "next_calibration_due": unit_data.get("next_calibration_due"),
+            "deployed_with_modem_id": unit_data.get("deployed_with_modem_id"),
+            "ip_address": unit_data.get("ip_address"),
+            "phone_number": unit_data.get("phone_number"),
+            "hardware_model": unit_data.get("hardware_model"),
+        }
+        all_units.append(unit_info)
+
+    # Sort by ID for consistent display
+    all_units.sort(key=lambda x: x["id"])
+
+    return templates.TemplateResponse(
+        "partials/devices_table.html",
+        {
+            "request": request,
+            "units": all_units
+        }
+    )

app/seismo/routers/seismo_dashboard.py

@@ -11,7 +11,7 @@ from app.seismo.database import get_db
 from app.seismo.models import RosterUnit
 
 router = APIRouter(prefix="/api/seismo-dashboard", tags=["seismo-dashboard"])
-templates = Jinja2Templates(directory="templates")
+templates = Jinja2Templates(directory="app/ui/templates")
 
 
 @router.get("/stats", response_class=HTMLResponse)

app/slm/dashboard.py

@@ -0,0 +1,317 @@
+"""
+Dashboard API endpoints for SLM/NL43 devices.
+This layer aggregates and transforms data from the device API for UI consumption.
+"""
+from fastapi import APIRouter, Depends, HTTPException, Request
+from fastapi.responses import HTMLResponse
+from fastapi.templating import Jinja2Templates
+from sqlalchemy.orm import Session
+from sqlalchemy import func
+from typing import List, Dict, Any
+import logging
+
+from app.slm.database import get_db as get_slm_db
+from app.slm.models import NL43Config, NL43Status
+from app.slm.services import NL43Client
+# Import seismo database for roster data
+from app.seismo.database import get_db as get_seismo_db
+from app.seismo.models import RosterUnit
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api/slm-dashboard", tags=["slm-dashboard"])
+templates = Jinja2Templates(directory="app/ui/templates")
+
+
+@router.get("/stats", response_class=HTMLResponse)
+async def get_dashboard_stats(request: Request, db: Session = Depends(get_seismo_db)):
+    """Get aggregate statistics for the SLM dashboard from roster (returns HTML)."""
+    # Query SLMs from the roster
+    slms = db.query(RosterUnit).filter_by(
+        device_type="sound_level_meter",
+        retired=False
+    ).all()
+
+    total_units = len(slms)
+    deployed = sum(1 for s in slms if s.deployed)
+    benched = sum(1 for s in slms if not s.deployed)
+
+    # For "active", count SLMs with recent check-ins (within last hour)
+    from datetime import datetime, timedelta, timezone
+    one_hour_ago = datetime.now(timezone.utc) - timedelta(hours=1)
+    active = sum(1 for s in slms if s.slm_last_check and s.slm_last_check >= one_hour_ago)
+
+    # Map to template variable names
+    # total_count, deployed_count, active_count, benched_count
+    return templates.TemplateResponse(
+        "partials/slm_stats.html",
+        {
+            "request": request,
+            "total_count": total_units,
+            "deployed_count": deployed,
+            "active_count": active,
+            "benched_count": benched
+        }
+    )
+
+
+@router.get("/units", response_class=HTMLResponse)
+async def get_units_list(request: Request, db: Session = Depends(get_seismo_db)):
+    """Get list of all SLM units from roster (returns HTML)."""
+    # Query SLMs from the roster (not retired)
+    slms = db.query(RosterUnit).filter_by(
+        device_type="sound_level_meter",
+        retired=False
+    ).order_by(RosterUnit.id).all()
+
+    units = []
+    for slm in slms:
+        # Map to template field names
+        unit_data = {
+            "id": slm.id,
+            "slm_host": slm.slm_host,
+            "slm_tcp_port": slm.slm_tcp_port,
+            "slm_last_check": slm.slm_last_check,
+            "slm_model": slm.slm_model or "NL-43",
+            "address": slm.address,
+            "deployed_with_modem_id": slm.deployed_with_modem_id,
+        }
+        units.append(unit_data)
+
+    return templates.TemplateResponse(
+        "partials/slm_unit_list.html",
+        {
+            "request": request,
+            "units": units
+        }
+    )
+
+
+@router.get("/live-view/{unit_id}", response_class=HTMLResponse)
+async def get_live_view(unit_id: str, request: Request, slm_db: Session = Depends(get_slm_db), roster_db: Session = Depends(get_seismo_db)):
+    """Get live measurement data for a specific unit (returns HTML)."""
+    # Get unit from roster
+    unit = roster_db.query(RosterUnit).filter_by(
+        id=unit_id,
+        device_type="sound_level_meter"
+    ).first()
+
+    if not unit:
+        return templates.TemplateResponse(
+            "partials/slm_live_view_error.html",
+            {
+                "request": request,
+                "error": f"Unit {unit_id} not found in roster"
+            }
+        )
+
+    # Get status from monitoring database (may not exist yet)
+    status = slm_db.query(NL43Status).filter_by(unit_id=unit_id).first()
+
+    # Get modem info if available
+    modem = None
+    modem_ip = None
+    if unit.deployed_with_modem_id:
+        modem = roster_db.query(RosterUnit).filter_by(
+            id=unit.deployed_with_modem_id,
+            device_type="modem"
+        ).first()
+        if modem:
+            modem_ip = modem.ip_address
+    elif unit.slm_host:
+        modem_ip = unit.slm_host
+
+    # Determine if measuring
+    is_measuring = False
+    if status and status.measurement_state:
+        is_measuring = status.measurement_state.lower() == 'start'
+
+    return templates.TemplateResponse(
+        "partials/slm_live_view.html",
+        {
+            "request": request,
+            "unit": unit,
+            "modem": modem,
+            "modem_ip": modem_ip,
+            "current_status": status,
+            "is_measuring": is_measuring
+        }
+    )
+
+
+@router.get("/config/{unit_id}", response_class=HTMLResponse)
+async def get_unit_config(unit_id: str, request: Request, roster_db: Session = Depends(get_seismo_db)):
+    """Return the HTML config form for a specific unit."""
+    unit = roster_db.query(RosterUnit).filter_by(
+        id=unit_id,
+        device_type="sound_level_meter"
+    ).first()
+
+    if not unit:
+        raise HTTPException(status_code=404, detail="Unit configuration not found")
+
+    return templates.TemplateResponse(
+        "partials/slm_config_form.html",
+        {
+            "request": request,
+            "unit": unit
+        }
+    )
+
+
+@router.post("/config/{unit_id}")
+async def update_unit_config(
+    unit_id: str,
+    request: Request,
+    roster_db: Session = Depends(get_seismo_db),
+    slm_db: Session = Depends(get_slm_db)
+):
+    """Update configuration for a specific unit from the form submission."""
+    unit = roster_db.query(RosterUnit).filter_by(
+        id=unit_id,
+        device_type="sound_level_meter"
+    ).first()
+
+    if not unit:
+        raise HTTPException(status_code=404, detail="Unit configuration not found")
+
+    form = await request.form()
+
+    def get_int(value, default=None):
+        try:
+            return int(value) if value not in (None, "") else default
+        except (TypeError, ValueError):
+            return default
+
+    # Update roster fields
+    unit.slm_model = form.get("slm_model") or unit.slm_model
+    unit.slm_serial_number = form.get("slm_serial_number") or unit.slm_serial_number
+    unit.slm_frequency_weighting = form.get("slm_frequency_weighting") or unit.slm_frequency_weighting
+    unit.slm_time_weighting = form.get("slm_time_weighting") or unit.slm_time_weighting
+    unit.slm_measurement_range = form.get("slm_measurement_range") or unit.slm_measurement_range
+
+    unit.slm_host = form.get("slm_host") or None
+    unit.slm_tcp_port = get_int(form.get("slm_tcp_port"), unit.slm_tcp_port or 2255)
+    unit.slm_ftp_port = get_int(form.get("slm_ftp_port"), unit.slm_ftp_port or 21)
+
+    deployed_with_modem_id = form.get("deployed_with_modem_id") or None
+    unit.deployed_with_modem_id = deployed_with_modem_id
+
+    roster_db.commit()
+    roster_db.refresh(unit)
+
+    # Update or create NL43 config so SLMM can reach the device
+    config = slm_db.query(NL43Config).filter_by(unit_id=unit_id).first()
+    if not config:
+        config = NL43Config(unit_id=unit_id)
+        slm_db.add(config)
+
+    # Resolve host from modem if present, otherwise fall back to direct IP or existing config
+    host_for_config = None
+    if deployed_with_modem_id:
+        modem = roster_db.query(RosterUnit).filter_by(
+            id=deployed_with_modem_id,
+            device_type="modem"
+        ).first()
+        if modem and modem.ip_address:
+            host_for_config = modem.ip_address
+    if not host_for_config:
+        host_for_config = unit.slm_host or config.host or "127.0.0.1"
+
+    config.host = host_for_config
+    config.tcp_port = get_int(form.get("slm_tcp_port"), config.tcp_port or 2255)
+    config.tcp_enabled = True
+    config.ftp_enabled = bool(config.ftp_username and config.ftp_password)
+
+    slm_db.commit()
+    slm_db.refresh(config)
+
+    return {"success": True, "unit_id": unit_id}
+
+
+@router.post("/control/{unit_id}/{action}")
+async def control_unit(unit_id: str, action: str, db: Session = Depends(get_slm_db)):
+    """Send control command to a unit (start, stop, pause, resume, etc.)."""
+    config = db.query(NL43Config).filter_by(unit_id=unit_id).first()
+    if not config:
+        raise HTTPException(status_code=404, detail="Unit configuration not found")
+
+    if not config.tcp_enabled:
+        raise HTTPException(status_code=400, detail="TCP control not enabled for this unit")
+
+    # Create NL43Client
+    client = NL43Client(
+        host=config.host,
+        port=config.tcp_port,
+        timeout=5.0,
+        ftp_username=config.ftp_username,
+        ftp_password=config.ftp_password
+    )
+
+    # Map action to command
+    action_map = {
+        "start": "start_measurement",
+        "stop": "stop_measurement",
+        "pause": "pause_measurement",
+        "resume": "resume_measurement",
+        "reset": "reset_measurement",
+        "sleep": "sleep_mode",
+        "wake": "wake_from_sleep",
+    }
+
+    if action not in action_map:
+        raise HTTPException(status_code=400, detail=f"Unknown action: {action}")
+
+    method_name = action_map[action]
+    method = getattr(client, method_name, None)
+
+    if not method:
+        raise HTTPException(status_code=500, detail=f"Method {method_name} not implemented")
+
+    try:
+        result = await method()
+        return {"success": True, "action": action, "result": result}
+    except Exception as e:
+        logger.error(f"Error executing {action} on {unit_id}: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/test-modem/{unit_id}")
+async def test_modem(unit_id: str, db: Session = Depends(get_slm_db)):
+    """Test connectivity to a unit's modem/device."""
+    config = db.query(NL43Config).filter_by(unit_id=unit_id).first()
+    if not config:
+        raise HTTPException(status_code=404, detail="Unit configuration not found")
+
+    if not config.tcp_enabled:
+        raise HTTPException(status_code=400, detail="TCP control not enabled for this unit")
+
+    client = NL43Client(
+        host=config.host,
+        port=config.tcp_port,
+        timeout=5.0,
+        ftp_username=config.ftp_username,
+        ftp_password=config.ftp_password
+    )
+
+    try:
+        # Try to get measurement state as a connectivity test
+        state = await client.get_measurement_state()
+        return {
+            "success": True,
+            "unit_id": unit_id,
+            "host": config.host,
+            "port": config.tcp_port,
+            "reachable": True,
+            "measurement_state": state
+        }
+    except Exception as e:
+        logger.warning(f"Modem test failed for {unit_id}: {e}")
+        return {
+            "success": False,
+            "unit_id": unit_id,
+            "host": config.host,
+            "port": config.tcp_port,
+            "reachable": False,
+            "error": str(e)
+        }

app/ui/templates/partials/slm_live_view.html

@@ -568,9 +568,13 @@ function initLiveDataStream(unitId) {
         if (stopBtn) stopBtn.style.display = 'flex';
     };
 
-    window.currentWebSocket.onmessage = function(event) {
+    window.currentWebSocket.onmessage = async function(event) {
         try {
-            const data = JSON.parse(event.data);
+            let payload = event.data;
+            if (payload instanceof Blob) {
+                payload = await payload.text();
+            }
+            const data = typeof payload === 'string' ? JSON.parse(payload) : payload;
             console.log('WebSocket data received:', data);
             updateLiveMetrics(data);
             updateLiveChart(data);

app/ui/templates/sound_level_meters.html

@@ -167,10 +167,18 @@ function initLiveDataStream(unitId) {
         if (stopBtn) stopBtn.style.display = 'flex';
     };
 
-    currentWebSocket.onmessage = function(event) {
-        const data = JSON.parse(event.data);
+    currentWebSocket.onmessage = async function(event) {
+        try {
+            let payload = event.data;
+            if (payload instanceof Blob) {
+                payload = await payload.text();
+            }
+            const data = typeof payload === 'string' ? JSON.parse(payload) : payload;
             updateLiveChart(data);
             updateLiveMetrics(data);
+        } catch (error) {
+            console.error('Error parsing WebSocket message:', error);
+        }
     };
 
     currentWebSocket.onerror = function(error) {

dfjkl

@@ -1,41 +0,0 @@
-16eb9eb (HEAD -> dev) migration Part 1.
-991aaca chore: modular monolith folder split (no behavior change)
-893cb96 fixed syntax error, unexpected token
-c30d7fa (origin/dev) SLM config now sync to SLMM, SLMM caches configs for speed
-6d34e54 Update Terra-view SLM live view to use correct DRD field names
-4d74eda 0.4.2 - Early implementation of SLMs. WIP.
-96cb27e v0.4.1
-85b211e bugfix: unit status updating based on last heard, not just using cached status
-e16f61a slm integration added
-dba4ad1 refactor: clean up whitespace and improve formatting in emit_status_snapshot function
-e78d252 (origin/wip/nl43-scaffold-backup, wip/nl43-scaffold-backup) .dockerignore improve for deployment
-ab9c650 .dockerignore improve for deployment
-2d22d0d docs updated to v0.4.0
-7d17d35 settings oragnized, DB management system fixes
-7c89d20 renamed datamanagement to roster management
-27f8719 db management system added
-d97999e unit history added
-191dcef Photo mode feature added.
-6db958f map overlap bug fixed
-3a41b81 docs updated for 0.3.2
-3aff0cb fixed mobile modal view status
-7cadd97 Bump version to v0.3.2
-274e390 Full PWA mobile version added, bug fixes on deployment status, navigation links added
-195df96 0.3.0 update-docs updated
-6fc8721 settings overhaul, many QOL improvements
-690669c v0.2.2-series4 endpoint added, dev branch set up at :1001
-83593f7 update docs
-4cef580 v0.2.1.  many features added and cleaned up.
-dc85380 v0.2 fleet overhaul
-802601a pre refactor
-e46f668 added frontend unit addition/editing
-90ecada v0.1.1 update
-938e950 Merge pull request #3 from serversdwn/main
-a6ad9fd Merge pull request #2 from serversdwn/claude/seismo-frontend-scaffold-015sto5mf2MpPCE57TbNKtaF
-02a99ea (origin/claude/seismo-frontend-scaffold-015sto5mf2MpPCE57TbNKtaF, claude/seismo-frontend-scaffold-015sto5mf2MpPCE57TbNKtaF) Fix Docker configuration for new backend structure
-247405c Add MVP frontend scaffold with FastAPI + HTMX + TailwindCSS
-e7e660a Merge pull request #1 from serversdwn/claude/seismo-backend-server-01FsCdpT2WT4B342V3KtWx38
-36ce63f (origin/claude/seismo-backend-server-01FsCdpT2WT4B342V3KtWx38, claude/seismo-backend-server-01FsCdpT2WT4B342V3KtWx38) Change exposed port from 8000 to 8001 to avoid port conflict
-05c6336 Containerize backend with Docker Compose
-f976e4e Add Seismo Fleet Manager backend v0.1
-c1bdf17 (origin/main, origin/HEAD, main) Initial commit

docker-compose.yml

@@ -1,7 +1,8 @@
 services:
 
-  # --- TERRA-VIEW UI/ORCHESTRATOR (PRODUCTION) ---
-  # Serves HTML, proxies to SFM and SLMM backends
+  # --- TERRA-VIEW (PRODUCTION) ---
+  # Unified application: UI + Seismograph logic + SLM dashboard/proxy
+  # Only external HTTP dependency: SLMM backend for NL-43 device communication
   terra-view-prod:
     build:
       context: .
@@ -14,13 +15,11 @@ services:
       - PYTHONUNBUFFERED=1
       - ENVIRONMENT=production
       - PORT=8001
-      - SFM_API_URL=http://localhost:8002     # New: Points to SFM container
       - SLMM_API_URL=http://localhost:8100    # Points to SLMM container
     restart: unless-stopped
     depends_on:
-      - sfm
       - slmm
-    command: python3 -m app.main              # Runs full Terra-View (UI + orchestration)
+    command: python3 -m app.main              # Runs full Terra-View (UI + seismo + SLM)
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:8001/health"]
       interval: 30s
@@ -28,7 +27,7 @@ services:
       retries: 3
       start_period: 40s
 
-  # --- TERRA-VIEW UI/ORCHESTRATOR (DEVELOPMENT) ---
+  # --- TERRA-VIEW (DEVELOPMENT) ---
   terra-view-dev:
     build:
       context: .
@@ -41,11 +40,9 @@ services:
       - PYTHONUNBUFFERED=1
       - ENVIRONMENT=development
       - PORT=1001
-      - SFM_API_URL=http://localhost:8002
       - SLMM_API_URL=http://localhost:8100
     restart: unless-stopped
     depends_on:
-      - sfm
       - slmm
     profiles:
       - dev
@@ -57,30 +54,6 @@ services:
       retries: 3
       start_period: 40s
 
-  # --- SFM - SEISMOGRAPH FLEET MODULE (BACKEND API) ---
-  # Eventually will be API-only, but for now runs same code as Terra-View
-  sfm:
-    build:
-      context: .
-      dockerfile: Dockerfile.sfm
-    container_name: sfm
-    network_mode: host
-    volumes:
-      - ./data:/app/data
-    environment:
-      - PYTHONUNBUFFERED=1
-      - ENVIRONMENT=production
-      - PORT=8002                           # Different port from Terra-View
-      - MODULE_MODE=sfm                     # Future: Tells app to run SFM-only mode
-    restart: unless-stopped
-    command: python3 -m app.main            # For now: Same entry point, different port
-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8002/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 40s
-
   # --- SLMM (Sound Level Meter Manager) ---
   slmm:
     build: