ui: Data Generation view (per-DB tabs, light generate, run status) + topology pulse

ui/src/App.tsx

@@ -17,6 +17,7 @@ import { DataQualityView } from './components/features/DataQualityView'
 import { KnowledgeChatView } from './components/features/KnowledgeChatView'
 import { StorageView } from './components/features/StorageView'
 import { HdfsView } from './components/features/HdfsView'
+import { DataGenView } from './components/features/DataGenView'
 import { SearchView } from './components/features/SearchView'
 import { SshTerminal } from './components/features/SshTerminal'
 import { TerminalDock } from './components/features/TerminalDock'
@@ -123,7 +124,10 @@ export default function App() {
                     animations={cc.anims}
                     selectedNodeId={cc.selectedNodeId}
                     onNodeClick={cc.selectNode}
+                    pulse={cc.genPulse}
                   />
+                ) : cc.mainView === 'datagen' ? (
+                  <DataGenView onPulse={cc.pulseFlow} onOpenPlatform={() => cc.setMainView('platform')} />
                 ) : cc.mainView === 'presentation' ? (
                   <PresentationView />
                 ) : cc.mainView === 'dataquality' ? (

ui/src/components/features/DataGenView.tsx

@@ -0,0 +1,249 @@
+import { useCallback, useEffect, useRef, useState } from 'react'
+import { Database, Boxes, Activity, Cpu, Network, Layers, Play, Loader2, CheckCircle2, XCircle, RefreshCw } from 'lucide-react'
+import { cn } from '../../lib/utils'
+import { subTabActive, subTabIdle } from '../../lib/tabActive'
+
+type SourceKey = 'all' | 'postgres' | 'mysql' | 'mongodb' | 'cassandra' | 'neo4j'
+
+type SourceMeta = {
+  key: SourceKey
+  label: string
+  icon: typeof Database
+  accent: string
+  target: string
+  cdc: boolean
+  desc: string
+  defaultRows: number
+}
+
+const SOURCES: SourceMeta[] = [
+  { key: 'all', label: 'All sources', icon: Layers, accent: 'text-violet-400', target: 'alle 5 databases', cdc: true, desc: 'Genereer tegelijk in alle databases.', defaultRows: 5000 },
+  { key: 'postgres', label: 'PostgreSQL', icon: Database, accent: 'text-sky-400', target: 'sales_orders', cdc: true, desc: 'Sales orders. CDC via Debezium -> Kafka -> S3.', defaultRows: 5000 },
+  { key: 'mysql', label: 'MySQL', icon: Database, accent: 'text-amber-400', target: 'employee_events', cdc: true, desc: 'HR employee events. CDC via Debezium -> Kafka -> S3.', defaultRows: 5000 },
+  { key: 'mongodb', label: 'MongoDB', icon: Boxes, accent: 'text-emerald-400', target: 'supplychain.events', cdc: true, desc: 'Supply chain events. CDC via Debezium -> Kafka -> S3.', defaultRows: 5000 },
+  { key: 'cassandra', label: 'Cassandra', icon: Activity, accent: 'text-cyan-400', target: 'device_metrics', cdc: false, desc: 'Telemetry metrics. Zichtbaar via Trino.', defaultRows: 5000 },
+  { key: 'neo4j', label: 'Neo4j', icon: Network, accent: 'text-pink-400', target: 'Product/Supplier graph', cdc: false, desc: 'Graafdata (producten, leveranciers, relaties).', defaultRows: 2000 },
+]
+
+type RunInfo = { run_id?: string; state?: string; start?: string; end?: string; conf?: { rows?: number } }
+
+type Props = {
+  onPulse: () => void
+  onOpenPlatform: () => void
+}
+
+const COUNT_KEYS: SourceKey[] = ['postgres', 'mysql', 'mongodb', 'cassandra']
+
+export function DataGenView({ onPulse, onOpenPlatform }: Props) {
+  const [active, setActive] = useState<SourceKey>('all')
+  const [rows, setRows] = useState<Record<SourceKey, number>>(
+    Object.fromEntries(SOURCES.map((s) => [s.key, s.defaultRows])) as Record<SourceKey, number>,
+  )
+  const [busy, setBusy] = useState<Record<string, boolean>>({})
+  const [runs, setRuns] = useState<Record<string, RunInfo[]>>({})
+  const [counts, setCounts] = useState<Record<string, number | null>>({})
+  const [msg, setMsg] = useState<string | null>(null)
+  const pollRef = useRef<Record<string, ReturnType<typeof setInterval>>>({})
+
+  const meta = SOURCES.find((s) => s.key === active)!
+
+  const loadCounts = useCallback(async () => {
+    try {
+      const r = await fetch('/api/pipeline/sync')
+      const j = await r.json()
+      if (j.ok) setCounts(j.counts || {})
+    } catch { /* */ }
+  }, [])
+
+  const loadRuns = useCallback(async (source: SourceKey) => {
+    try {
+      const r = await fetch(`/api/pipeline/runs/${source}?limit=5`)
+      const j = await r.json()
+      if (j.ok) setRuns((prev) => ({ ...prev, [source]: j.runs || [] }))
+      return (j.runs || [])[0] as RunInfo | undefined
+    } catch {
+      return undefined
+    }
+  }, [])
+
+  useEffect(() => {
+    loadCounts()
+    SOURCES.forEach((s) => loadRuns(s.key))
+    return () => { Object.values(pollRef.current).forEach(clearInterval) }
+  }, [loadCounts, loadRuns])
+
+  const startPolling = useCallback((source: SourceKey) => {
+    if (pollRef.current[source]) clearInterval(pollRef.current[source])
+    pollRef.current[source] = setInterval(async () => {
+      const latest = await loadRuns(source)
+      if (latest && (latest.state === 'success' || latest.state === 'failed')) {
+        clearInterval(pollRef.current[source])
+        delete pollRef.current[source]
+        setBusy((b) => ({ ...b, [source]: false }))
+        loadCounts()
+        if (latest.state === 'success') setMsg(`${source}: klaar — nieuwe data gegenereerd`)
+        else setMsg(`${source}: run mislukt — check Airflow logs`)
+      }
+    }, 3000)
+  }, [loadRuns, loadCounts])
+
+  const generate = useCallback(async (source: SourceKey) => {
+    setMsg(null)
+    setBusy((b) => ({ ...b, [source]: true }))
+    onPulse()
+    try {
+      const r = await fetch(`/api/pipeline/generate/${source}`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ rows: rows[source] }),
+      })
+      const j = await r.json()
+      if (!j.ok) {
+        setMsg(`Fout: ${j.error || 'kon niet triggeren'}`)
+        setBusy((b) => ({ ...b, [source]: false }))
+        return
+      }
+      setMsg(`${source}: gestart (run ${String(j.run_id).slice(-8)})`)
+      startPolling(source)
+    } catch {
+      setMsg('API niet bereikbaar')
+      setBusy((b) => ({ ...b, [source]: false }))
+    }
+  }, [rows, onPulse, startPolling])
+
+  const stateBadge = (state?: string) => {
+    if (state === 'success') return <span className="inline-flex items-center gap-1 text-emerald-400"><CheckCircle2 className="h-3 w-3" /> success</span>
+    if (state === 'failed') return <span className="inline-flex items-center gap-1 text-danger"><XCircle className="h-3 w-3" /> failed</span>
+    if (state === 'running' || state === 'queued') return <span className="inline-flex items-center gap-1 text-amber-400"><Loader2 className="h-3 w-3 animate-spin" /> {state}</span>
+    return <span className="text-foreground-faint">{state || '—'}</span>
+  }
+
+  const latest = (runs[active] || [])[0]
+
+  return (
+    <div className="panel flex h-full min-h-0 flex-1 flex-col overflow-hidden">
+      <header className="flex shrink-0 flex-wrap items-center justify-between gap-2 border-b border-border px-4 py-3">
+        <div>
+          <h2 className="flex items-center gap-2 text-sm font-semibold text-foreground">
+            <Cpu className="h-4 w-4 text-violet-400" /> Data Generation
+          </h2>
+          <p className="text-[10px] text-foreground-muted">
+            Genereer per database nieuwe data en pulse de hele flow: bron -&gt; Debezium -&gt; Kafka -&gt; S3
+          </p>
+        </div>
+        <div className="flex gap-2">
+          <button type="button" onClick={() => { loadCounts(); SOURCES.forEach((s) => loadRuns(s.key)) }} className={cn('rounded-md px-3 py-1.5 text-[11px]', subTabIdle)}>
+            <RefreshCw className="inline h-3 w-3" /> Refresh
+          </button>
+          <button type="button" onClick={onOpenPlatform} className={cn('rounded-md px-3 py-1.5 text-[11px]', subTabActive)}>
+            Bekijk topology pulse
+          </button>
+        </div>
+      </header>
+
+      <div className="flex shrink-0 flex-wrap gap-1 border-b border-border px-3 py-2">
+        {SOURCES.map((s) => {
+          const Icon = s.icon
+          return (
+            <button
+              key={s.key}
+              type="button"
+              onClick={() => setActive(s.key)}
+              className={cn('inline-flex items-center gap-1.5 rounded-md px-3 py-1.5 text-[11px] font-medium', active === s.key ? subTabActive : subTabIdle)}
+            >
+              <Icon className={cn('h-3.5 w-3.5', s.accent)} />
+              {s.label}
+              {busy[s.key] && <Loader2 className="h-3 w-3 animate-spin text-amber-400" />}
+            </button>
+          )
+        })}
+      </div>
+
+      <div className="scrollbar-thin min-h-0 flex-1 overflow-y-auto p-4">
+        <div className="max-w-2xl space-y-4">
+          <div className="rounded-lg border border-border bg-surface-overlay/40 p-4">
+            <div className="mb-1 flex items-center gap-2">
+              <meta.icon className={cn('h-5 w-5', meta.accent)} />
+              <h3 className="text-sm font-semibold text-foreground">{meta.label}</h3>
+              {meta.cdc ? (
+                <span className="rounded bg-emerald-500/15 px-1.5 py-0.5 text-[9px] text-emerald-400">CDC actief</span>
+              ) : (
+                <span className="rounded bg-white/10 px-1.5 py-0.5 text-[9px] text-foreground-muted">geen CDC-stream</span>
+              )}
+            </div>
+            <p className="mb-3 text-[11px] text-foreground-muted">{meta.desc} Doel: <span className="font-mono">{meta.target}</span></p>
+
+            <div className="flex flex-wrap items-end gap-3">
+              <label className="flex flex-col gap-1 text-[10px] uppercase tracking-wide text-foreground-faint">
+                Aantal rijen
+                <input
+                  type="number"
+                  min={1}
+                  max={2000000}
+                  value={rows[active]}
+                  onChange={(e) => setRows((r) => ({ ...r, [active]: Number(e.target.value) }))}
+                  className="w-40 rounded border border-border bg-background px-2 py-1.5 text-[12px] text-foreground"
+                />
+              </label>
+              <button
+                type="button"
+                disabled={!!busy[active]}
+                onClick={() => generate(active)}
+                className="inline-flex items-center gap-2 rounded-md bg-violet-500/90 px-4 py-2 text-[12px] font-semibold text-black hover:bg-violet-400 disabled:opacity-40"
+              >
+                {busy[active] ? <Loader2 className="h-4 w-4 animate-spin" /> : <Play className="h-4 w-4" />}
+                Genereer data
+              </button>
+              {active !== 'all' && COUNT_KEYS.includes(active) && (
+                <div className="text-[11px] text-foreground-muted">
+                  Huidige rijen: <span className="font-mono text-foreground">{counts[active]?.toLocaleString() ?? '…'}</span>
+                </div>
+              )}
+            </div>
+            {msg && <p className="mt-3 text-[11px] text-foreground-muted">{msg}</p>}
+          </div>
+
+          <div className="rounded-lg border border-border p-4">
+            <h4 className="mb-2 text-[11px] font-semibold uppercase tracking-wide text-foreground-faint">Recente runs — {meta.label}</h4>
+            {latest ? (
+              <table className="w-full text-left text-[11px]">
+                <thead>
+                  <tr className="border-b border-border text-[9px] uppercase text-foreground-faint">
+                    <th className="py-1 pr-2">State</th>
+                    <th className="py-1 pr-2">Rows</th>
+                    <th className="py-1 pr-2">Start</th>
+                    <th className="py-1 pr-2">Eind</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  {(runs[active] || []).map((run) => (
+                    <tr key={run.run_id} className="border-b border-border/40">
+                      <td className="py-1 pr-2">{stateBadge(run.state)}</td>
+                      <td className="py-1 pr-2 font-mono text-foreground-muted">{run.conf?.rows ?? '—'}</td>
+                      <td className="py-1 pr-2 text-foreground-faint">{run.start?.slice(11, 19) || '—'}</td>
+                      <td className="py-1 pr-2 text-foreground-faint">{run.end?.slice(11, 19) || '—'}</td>
+                    </tr>
+                  ))}
+                </tbody>
+              </table>
+            ) : (
+              <p className="text-[11px] text-foreground-faint">Nog geen runs.</p>
+            )}
+          </div>
+
+          <div className="rounded-lg border border-border p-4">
+            <h4 className="mb-2 text-[11px] font-semibold uppercase tracking-wide text-foreground-faint">Live tellingen (Trino)</h4>
+            <div className="grid grid-cols-2 gap-2 sm:grid-cols-4">
+              {COUNT_KEYS.map((k) => (
+                <div key={k} className="rounded border border-border/60 px-2 py-1.5">
+                  <div className="text-[9px] uppercase text-foreground-faint">{k}</div>
+                  <div className="font-mono text-[12px] text-foreground">{counts[k]?.toLocaleString() ?? '…'}</div>
+                </div>
+              ))}
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}

ui/src/components/features/PlatformTopology.tsx

@@ -253,9 +253,10 @@ type Props = {
   animations: Record<string, AgentAnim>
   selectedNodeId: string | null
   onNodeClick: (nodeId: string) => void
+  pulse?: boolean
 }
 
-export function PlatformTopology({ workload, animations, selectedNodeId, onNodeClick }: Props) {
+export function PlatformTopology({ workload, animations, selectedNodeId, onNodeClick, pulse = false }: Props) {
   const [metrics, setMetrics] = useState<MetricState>(seedMetrics)
   const canvasRef = useRef<HTMLDivElement>(null)
   const nodeRefs = useRef<Record<string, HTMLButtonElement | null>>({})
@@ -292,7 +293,7 @@ export function PlatformTopology({ workload, animations, selectedNodeId, onNodeC
     [animations],
   )
 
-  const edgesLive = pipelineActive || anyBusy
+  const edgesLive = pulse || pipelineActive || anyBusy
 
   useEffect(() => {
     fetch("/api/search/health").then(r => r.json()).then(j => {
@@ -343,7 +344,7 @@ export function PlatformTopology({ workload, animations, selectedNodeId, onNodeC
   }, [measureAnchors, metrics, llmLabel])
 
   return (
-    <section className="panel flex h-full min-h-0 flex-1 flex-col overflow-hidden">
+    <section className={cn('panel flex h-full min-h-0 flex-1 flex-col overflow-hidden', pulse && 'topo-pulsing')}>
       <header
         className="flex shrink-0 flex-col gap-0.5 border-b border-border px-2 py-1"
         style={{ background: 'var(--topo-header-bg)' }}
@@ -402,7 +403,7 @@ export function PlatformTopology({ workload, animations, selectedNodeId, onNodeC
             const longArc = colGap > 1 || (Math.abs(b.y - a.y) > 48 && Math.abs(toX - fromX) > 120)
             const d = flowPath(fromX, a.y, toX, b.y, { backward, longArc })
             const live = edgesLive
-            const dur = 1.8 + (i % 5) * 0.35
+            const dur = (pulse ? 0.85 : 1.8) + (i % 5) * (pulse ? 0.12 : 0.35)
             return (
               <g key={`${edge.from}-${edge.to}-${edge.kind}`}>
                 <path d={d} className="topo-edge-glow" />

ui/src/components/layout/SideNav.tsx

@@ -1,4 +1,4 @@
-import { DatabaseZap, HardDrive, Search, LayoutDashboard, MessageSquare, Presentation, Server, TerminalSquare } from 'lucide-react'
+import { DatabaseZap, HardDrive, Search, LayoutDashboard, MessageSquare, Presentation, Server, TerminalSquare, Cpu } from 'lucide-react'
 import type { GpuStatus, WorkloadData } from '../../types'
 import type { GpuLiveMetrics } from '../../hooks/useLiveMetrics'
 import { cn } from '../../lib/utils'
@@ -6,7 +6,7 @@ import { viewTabActive, viewTabIdle } from '../../lib/tabActive'
 import { GpuMatrixPanel } from '../features/GpuMatrixPanel'
 import { LabHealthPanel } from '../features/LabHealthPanel'
 
-type MainView = 'platform' | 'presentation' | 'dataquality' | 'knowledge' | 'storage' | 'hdfs' | 'search' | 'approvals'
+type MainView = 'platform' | 'presentation' | 'dataquality' | 'knowledge' | 'storage' | 'hdfs' | 'search' | 'datagen' | 'approvals'
 
 type Props = {
   workload: WorkloadData | null
@@ -24,6 +24,7 @@ type Props = {
 
 const VIEWS: { id: MainView; label: string; icon: typeof LayoutDashboard }[] = [
   { id: 'platform', label: 'Data Platform', icon: LayoutDashboard },
+  { id: 'datagen', label: 'Data Generation', icon: Cpu },
   { id: 'presentation', label: 'Presentation', icon: Presentation },
   { id: 'dataquality', label: 'Data Quality', icon: DatabaseZap },
   { id: 'knowledge', label: 'Knowledge Chat', icon: MessageSquare },

ui/src/hooks/useCommandCenter.ts

@@ -68,7 +68,14 @@ export function useCommandCenter() {
   const [selectedNode, setSelectedNode] = useState<TopologyNode | null>(null)
   const [nodeDetail, setNodeDetail] = useState<NodeDetail | null>(null)
   const [nodeBusy, setNodeBusy] = useState(false)
-  const [mainView, setMainView] = useState<'platform' | 'approvals' | 'presentation' | 'dataquality' | 'knowledge' | 'storage' | 'hdfs' | 'search'>('platform')
+  const [mainView, setMainView] = useState<'platform' | 'approvals' | 'presentation' | 'dataquality' | 'knowledge' | 'storage' | 'hdfs' | 'search' | 'datagen'>('platform')
+  const [genPulse, setGenPulse] = useState(false)
+  const genPulseTimer = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const pulseFlow = useCallback(() => {
+    setGenPulse(true)
+    if (genPulseTimer.current) clearTimeout(genPulseTimer.current)
+    genPulseTimer.current = setTimeout(() => setGenPulse(false), 60000)
+  }, [])
   const [approvalHighlight, setApprovalHighlight] = useState(false)
   const [workbenchMode, setWorkbenchMode] = useState<'agent' | 'sql-postgres' | 'sql-mysql' | 'sql-mongodb' | 'sql-trino' | null>(null)
   const [chatExpanded, setChatExpanded] = useState(false)
@@ -336,6 +343,8 @@ export function useCommandCenter() {
     nodeBusy,
     mainView,
     setMainView,
+    genPulse,
+    pulseFlow,
     approvalHighlight,
     setApprovalHighlight,
     workbenchMode,

ui/src/styles/globals.css

@@ -107,6 +107,21 @@
   .topo-edge-query.topo-edge-live { stroke: #818cf8; filter: drop-shadow(0 0 3px rgba(129, 140, 248, 0.45)); }
   .topo-edge-serve.topo-edge-live { stroke: #34d399; filter: drop-shadow(0 0 3px rgba(52, 211, 153, 0.45)); }
 
+  /* Whole-flow pulse triggered by a data-generation run */
+  .topo-pulsing .topo-edge-live {
+    stroke-width: 3;
+    animation: flow-dash 0.6s linear infinite;
+  }
+  .topo-pulsing .topo-edge-glow {
+    stroke: rgba(124, 231, 135, 0.35);
+    stroke-width: 6;
+    animation: topo-pulse-glow 1.4s ease-in-out infinite;
+  }
+  @keyframes topo-pulse-glow {
+    0%, 100% { opacity: 0.4; }
+    50% { opacity: 1; }
+  }
+
   .topo-edge-active {
     stroke: url(#topo-flow-gradient);
     stroke-width: 2.5;