# LandveX Finance — Integrationsguide för Sprint 3

> Steg-för-steg guide för att integrera de nya filerna i produktion.

---

## 1. Backend-integration

### 1.1 Kopiera filer

```bash
# Skapa finance-mapp om den inte finns
sudo mkdir -p /opt/amos/api/finance

# Kopiera nya filer
sudo cp /home/bernt/.openclaw/workspace/landvex-finance-sprint3/metrics.mjs \
        /home/bernt/.openclaw/workspace/landvex-finance-sprint3/logger.mjs \
        /home/bernt/.openclaw/workspace/landvex-finance-sprint3/health.mjs \
        /opt/amos/api/finance/

# Sätt rättigheter
sudo chown -R amos:amos /opt/amos/api/finance
sudo chmod 644 /opt/amos/api/finance/*.mjs
```

### 1.2 Modifiera server.mjs

Lägg till följande rader:

```javascript
// LÄNGST UPP (efter andra imports)
import { getMetrics, getContentType } from './api/finance/metrics.mjs';
import { financeInfo, financeError, requestLogger } from './api/finance/logger.mjs';
import { financeHealthHandler } from './api/finance/health.mjs';

// EFTER app = express()
app.use(requestLogger);  // Logga alla requests

// EFTER app.get('/health/detailed', ...)
app.get('/health/finance', financeHealthHandler);

// I /prom-metrics endpoint (ersätt befintlig)
app.get('/prom-metrics', async (req, res) => {
  try {
    let out = await promRegistry.metrics();
    out += await getMetrics();  // NYTT: Finance metrics
    
    // ... befintlig error tracker kod ...
    
    res.set('Content-Type', getContentType());
    res.end(out);
  } catch (e) {
    res.status(500).end(e.message);
  }
});

// VID STARTUP (efter app.listen)
financeInfo('finance_service_started', {
  context: { port: PORT, node_version: process.version }
});
```

### 1.3 Verifiera

```bash
# Starta om servern
pm2 restart amos-finance

# Testa health
curl http://localhost:3100/health/finance | jq

# Testa metrics
curl http://localhost:3100/prom-metrics | grep finance_

# Testa loggning
tail -f /var/log/amos/finance.log | jq
```

---

## 2. Frontend-integration (valfritt, Sprint 4)

### 2.1 Kopiera JS-filer

```bash
sudo mkdir -p /opt/amos/public/ouroboros/finance/js
sudo cp /home/bernt/.openclaw/workspace/landvex-finance-sprint3/js/*.mjs \
        /opt/amos/public/ouroboros/finance/js/
```

### 2.2 Modifiera index.html

Ersätt `<script>`-taggen med:

```html
<script type="module" src="js/main.mjs"></script>
```

### 2.3 Feature-flagg

Lägg till i index.html för bakåtkompatibilitet:

```javascript
// I befintlig <script>
const useV2 = new URLSearchParams(location.search).has('v2');
if (useV2) {
  // Ladda nya modulära system
  import('./js/main.mjs');
} else {
  // Kör befintlig inline-kod
  // ...
}
```

---

## 3. Prometheus-konfiguration

### 3.1 Lägg till scrape job

```yaml
# /etc/prometheus/prometheus.yml
scrape_configs:
  - job_name: 'landvex-finance'
    static_configs:
      - targets: ['localhost:3100']
    metrics_path: '/prom-metrics'
    scrape_interval: 15s
```

### 3.2 Ladda om Prometheus

```bash
curl -X POST http://localhost:9090/-/reload
```

---

## 4. Grafana-dashboard

### 4.1 Importera dashboard

Skapa filen `grafana-dashboard.json` (se METRICS-IMPLEMENTATION.md) och importera via Grafana UI.

---

## 5. Larm (Alertmanager)

### 5.1 Lägg till regler

```yaml
# /etc/prometheus/alerts.yml
groups:
  - name: finance
    rules:
      - alert: FinanceDBDown
        expr: finance_health_status{check="database"} == 2
        for: 1m
        labels:
          severity: critical
        annotations:
          summary: "Finance database is down"

      - alert: FinanceDiskFull
        expr: finance_disk_used_percent > 90
        for: 5m
        labels:
          severity: warning
        annotations:
          summary: "Finance disk is almost full"

      - alert: FinanceHighLatency
        expr: histogram_quantile(0.95, rate(finance_api_duration_seconds_bucket[5m])) > 2
        for: 5m
        labels:
          severity: warning
        annotations:
          summary: "Finance API latency is high"
```

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*Senast uppdaterad: 2026-06-24*