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Cdc Replication Stream

blockdevops
Boilerplate repo

Debezium and Fivetran style Change Data Capture (CDC) replication monitor and binlog sync pipeline with live telemetry metrics, table operation breakdowns, and real-time before/after row diff streaming.

Installation

$npx shadcn@latest add https://uipkge.dev/r/react/cdc-replication-stream.json
Named registry:npx shadcn@latest add @uipkge-react/cdc-replication-streamInstalls to:components/blocks/

Variants

Loading interactive previews…

Props

NameType / ValuesDefaultRequired
initialEventsCdcStreamEvent[]—optional
initialTablesCdcTableMetric[]—optional
initialPausedboolean—optional
initialOperationFilter'all' | CdcOperation—optional
initialSearchstring—optional
classNamestring—optional

Schema

Type aliases exported from this item's source. Use these to shape the data you pass in.

CdcTableMetric
interface CdcTableMetric {
  name: string
  schema: string
  primaryKey: string
  syncedRows: number
  replicationDelayMs: number
  status: 'synchronized' | 'syncing' | 'paused'
  operations: {
    insertPercent: number
    updatePercent: number
    deletePercent: number
  }
  mode: string
}
CdcStreamEvent
interface CdcStreamEvent {
  id: string
  timestamp: string
  table: string
  operation: CdcOperation
  primaryKey: string
  binlogPosition: string
  lsn: string
  txId: string
  summary: string
  modifiedFields?: string[]
  before?: Record<string, unknown>
  after?: Record<string, unknown>
}

npm dependencies

lucide-react

Files installed (1)

  • components/blocks/CdcReplicationStream.tsx49.8 kB
    'use client'

import * as React from 'react'
import {
  Activity,
  ArrowRight,
  ArrowRightLeft,
  Check,
  ChevronDown,
  ChevronRight,
  Copy,
  Database,
  Download,
  Filter,
  Layers,
  Pause,
  Play,
  RefreshCw,
  Search,
  Server,
  ShieldCheck,
  Terminal,
  Zap,
} from 'lucide-react'
import { cn } from '@/lib/utils'
import { Badge } from '@/components/ui/badge'
import { Button } from '@/components/ui/button'
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
import { Input } from '@/components/ui/input'
import { Progress } from '@/components/ui/progress'
import { Separator } from '@/components/ui/separator'
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from '@/components/ui/table'

export type CdcOperation = 'INSERT' | 'UPDATE' | 'DELETE'

export interface CdcTableMetric {
  name: string
  schema: string
  primaryKey: string
  syncedRows: number
  replicationDelayMs: number
  status: 'synchronized' | 'syncing' | 'paused'
  operations: {
    insertPercent: number
    updatePercent: number
    deletePercent: number
  }
  mode: string
}

export interface CdcStreamEvent {
  id: string
  timestamp: string
  table: string
  operation: CdcOperation
  primaryKey: string
  binlogPosition: string
  lsn: string
  txId: string
  summary: string
  modifiedFields?: string[]
  before?: Record<string, unknown>
  after?: Record<string, unknown>
}

export interface CdcReplicationStreamProps {
  initialEvents?: CdcStreamEvent[]
  initialTables?: CdcTableMetric[]
  initialPaused?: boolean
  initialOperationFilter?: 'all' | CdcOperation
  initialSearch?: string
  className?: string
}

const defaultTables: CdcTableMetric[] = [
  {
    name: 'users',
    schema: 'public',
    primaryKey: 'id [UUID]',
    syncedRows: 1842910,
    replicationDelayMs: 12,
    status: 'synchronized',
    operations: {
      insertPercent: 65,
      updatePercent: 30,
      deletePercent: 5,
    },
    mode: 'Continuous WAL',
  },
  {
    name: 'orders',
    schema: 'public',
    primaryKey: 'order_id [BIGINT]',
    syncedRows: 2145820,
    replicationDelayMs: 16,
    status: 'synchronized',
    operations: {
      insertPercent: 78,
      updatePercent: 20,
      deletePercent: 2,
    },
    mode: 'Continuous WAL',
  },
  {
    name: 'transactions',
    schema: 'public',
    primaryKey: 'tx_hash [VARCHAR]',
    syncedRows: 624300,
    replicationDelayMs: 18,
    status: 'synchronized',
    operations: {
      insertPercent: 92,
      updatePercent: 7,
      deletePercent: 1,
    },
    mode: 'Continuous WAL',
  },
  {
    name: 'subscriptions',
    schema: 'public',
    primaryKey: 'sub_id [UUID]',
    syncedRows: 208440,
    replicationDelayMs: 14,
    status: 'synchronized',
    operations: {
      insertPercent: 45,
      updatePercent: 50,
      deletePercent: 5,
    },
    mode: 'Continuous WAL',
  },
]

const defaultEvents: CdcStreamEvent[] = [
  {
    id: 'evt-cdc-104',
    timestamp: '2026-08-21T14:32:05.812Z',
    table: 'public.subscriptions',
    operation: 'UPDATE',
    primaryKey: 'sub_99a8b1c4',
    binlogPosition: 'mysql-bin.000412 : 8492014',
    lsn: '0/16B38E0',
    txId: 'tx_883019',
    summary: 'status: "trialing" → "active", plan: "starter_monthly" → "enterprise_annual", seats: 5 → 25',
    modifiedFields: ['status', 'plan', 'seats', 'monthly_amount', 'trial_ends_at', 'updated_at'],
    before: {
      id: 'sub_99a8b1c4',
      user_id: 'usr_44018',
      plan: 'starter_monthly',
      status: 'trialing',
      seats: 5,
      monthly_amount: 49.0,
      auto_renew: true,
      trial_ends_at: '2026-08-21T23:59:59Z',
      updated_at: '2026-08-14T10:00:00Z',
    },
    after: {
      id: 'sub_99a8b1c4',
      user_id: 'usr_44018',
      plan: 'enterprise_annual',
      status: 'active',
      seats: 25,
      monthly_amount: 490.0,
      auto_renew: true,
      trial_ends_at: null,
      updated_at: '2026-08-21T14:32:05Z',
    },
  },
  {
    id: 'evt-cdc-103',
    timestamp: '2026-08-21T14:32:04.195Z',
    table: 'public.orders',
    operation: 'INSERT',
    primaryKey: 'ord_8819203',
    binlogPosition: 'mysql-bin.000412 : 8491820',
    lsn: '0/16B3698',
    txId: 'tx_883018',
    summary: 'New checkout order created for $1,280.00 (Customer: usr_99120, 3 line items)',
    modifiedFields: [],
    after: {
      order_id: 'ord_8819203',
      customer_id: 'usr_99120',
      currency: 'USD',
      total_amount: 1280.0,
      tax_amount: 102.4,
      status: 'paid',
      payment_gateway: 'stripe_card',
      shipping_country: 'US',
      created_at: '2026-08-21T14:32:04Z',
    },
  },
  {
    id: 'evt-cdc-102',
    timestamp: '2026-08-21T14:31:59.604Z',
    table: 'public.transactions',
    operation: 'UPDATE',
    primaryKey: 'tx_0x99b1f41',
    binlogPosition: 'mysql-bin.000412 : 8491412',
    lsn: '0/16B3440',
    txId: 'tx_883017',
    summary: 'status: "processing" → "settled", settled_at timestamp set',
    modifiedFields: ['status', 'settled_at'],
    before: {
      tx_hash: 'tx_0x99b1f41',
      order_id: 'ord_8819198',
      amount: 349.5,
      status: 'processing',
      settled_at: null,
      fee_cents: 1045,
    },
    after: {
      tx_hash: 'tx_0x99b1f41',
      order_id: 'ord_8819198',
      amount: 349.5,
      status: 'settled',
      settled_at: '2026-08-21T14:31:59Z',
      fee_cents: 1045,
    },
  },
  {
    id: 'evt-cdc-101',
    timestamp: '2026-08-21T14:31:52.410Z',
    table: 'public.users',
    operation: 'INSERT',
    primaryKey: 'usr_99304',
    binlogPosition: 'mysql-bin.000412 : 8490980',
    lsn: '0/16B31F0',
    txId: 'tx_883016',
    summary: 'New user registration: elena.rostova@cloudscale.io (Org: org_7720)',
    modifiedFields: [],
    after: {
      id: 'usr_99304',
      email: 'elena.rostova@cloudscale.io',
      full_name: 'Elena Rostova',
      org_id: 'org_7720',
      role: 'data_engineer',
      email_verified: true,
      mfa_enabled: true,
      created_at: '2026-08-21T14:31:52Z',
    },
  },
  {
    id: 'evt-cdc-100',
    timestamp: '2026-08-21T14:31:40.118Z',
    table: 'public.subscriptions',
    operation: 'DELETE',
    primaryKey: 'sub_7718021',
    binlogPosition: 'mysql-bin.000412 : 8490410',
    lsn: '0/16B2FA0',
    txId: 'tx_883015',
    summary: 'Hard purge of cancelled expired trial subscription sub_7718021',
    modifiedFields: [],
    before: {
      id: 'sub_7718021',
      user_id: 'usr_22910',
      plan: 'developer_free',
      status: 'cancelled',
      seats: 1,
      deleted_at: '2026-08-21T14:31:40Z',
    },
  },
]

const currentBinlog = 'mysql-bin.000412 : 8492014'

function matchesSearch(event: CdcStreamEvent, query: string): boolean {
  if (!query.trim()) return true
  const q = query.trim()

  if (q.startsWith('/') && q.length > 1) {
    const lastSlash = q.lastIndexOf('/')
    if (lastSlash > 0) {
      const pattern = q.slice(1, lastSlash)
      const flags = q.slice(lastSlash + 1)
      try {
        const re = new RegExp(pattern, flags)
        return (
          re.test(event.table) ||
          re.test(event.operation) ||
          re.test(event.primaryKey) ||
          re.test(event.binlogPosition) ||
          re.test(event.lsn) ||
          re.test(event.txId) ||
          re.test(event.summary) ||
          re.test(JSON.stringify(event.before ?? {})) ||
          re.test(JSON.stringify(event.after ?? {}))
        )
      } catch {
        // Fall back to plain search on invalid regex
      }
    }
  }

  const lower = q.toLowerCase()
  return (
    event.table.toLowerCase().includes(lower) ||
    event.operation.toLowerCase().includes(lower) ||
    event.primaryKey.toLowerCase().includes(lower) ||
    event.binlogPosition.toLowerCase().includes(lower) ||
    event.lsn.toLowerCase().includes(lower) ||
    event.txId.toLowerCase().includes(lower) ||
    event.summary.toLowerCase().includes(lower) ||
    JSON.stringify(event.before ?? {})
      .toLowerCase()
      .includes(lower) ||
    JSON.stringify(event.after ?? {})
      .toLowerCase()
      .includes(lower)
  )
}

function formatTimestamp(iso: string): string {
  try {
    const d = new Date(iso)
    return d.toISOString().replace('T', ' ').replace('Z', ' UTC')
  } catch {
    return iso
  }
}

function formatNumber(num: number): string {
  return new Intl.NumberFormat('en-US').format(num)
}

export function CdcReplicationStream({
  initialEvents,
  initialTables,
  initialPaused = false,
  initialOperationFilter = 'all',
  initialSearch = '',
  className,
}: CdcReplicationStreamProps) {
  const [tables] = React.useState<CdcTableMetric[]>(initialTables ? [...initialTables] : [...defaultTables])
  const [events, setEvents] = React.useState<CdcStreamEvent[]>(initialEvents ? [...initialEvents] : [...defaultEvents])
  const [isPaused, setIsPaused] = React.useState(initialPaused)
  const [isSnapshotting, setIsSnapshotting] = React.useState(false)
  const [snapshotNotice, setSnapshotNotice] = React.useState(false)
  const [selectedOperation, setSelectedOperation] = React.useState<'all' | CdcOperation>(initialOperationFilter)
  const [searchQuery, setSearchQuery] = React.useState(initialSearch)
  const [expandedIds, setExpandedIds] = React.useState<Record<string, boolean>>({
    'evt-cdc-104': true,
  })
  const [copiedEventId, setCopiedEventId] = React.useState<string | null>(null)
  const [copiedBinlog, setCopiedBinlog] = React.useState(false)
  const [exportedNotice, setExportedNotice] = React.useState(false)

  const filteredEvents = React.useMemo(() => {
    return events.filter((event) => {
      const matchesOp = selectedOperation === 'all' || event.operation === selectedOperation
      const matchesText = matchesSearch(event, searchQuery)
      return matchesOp && matchesText
    })
  }, [events, selectedOperation, searchQuery])

  const operationCounts = React.useMemo(() => {
    return {
      all: events.length,
      INSERT: events.filter((e) => e.operation === 'INSERT').length,
      UPDATE: events.filter((e) => e.operation === 'UPDATE').length,
      DELETE: events.filter((e) => e.operation === 'DELETE').length,
    }
  }, [events])

  const allExpanded = filteredEvents.length > 0 && filteredEvents.every((e) => expandedIds[e.id])

  function togglePause() {
    setIsPaused((prev) => !prev)
  }

  function toggleExpand(id: string) {
    setExpandedIds((prev) => ({
      ...prev,
      [id]: !prev[id],
    }))
  }

  function toggleAllExpand() {
    if (allExpanded) {
      setExpandedIds({})
    } else {
      const next: Record<string, boolean> = {}
      filteredEvents.forEach((e) => {
        next[e.id] = true
      })
      setExpandedIds(next)
    }
  }

  function triggerSnapshot() {
    if (isSnapshotting) return
    setIsSnapshotting(true)
    setSnapshotNotice(true)

    setTimeout(() => {
      setIsSnapshotting(false)
    }, 2200)

    setTimeout(() => {
      setSnapshotNotice(false)
    }, 6000)
  }

  function clearStream() {
    setEvents([])
    setExpandedIds({})
  }

  function resetStream() {
    setEvents(initialEvents ? [...initialEvents] : [...defaultEvents])
    setSearchQuery('')
    setSelectedOperation('all')
    setExpandedIds({ 'evt-cdc-104': true })
  }

  function copyBinlogPosition() {
    if (typeof navigator !== 'undefined' && navigator.clipboard) {
      navigator.clipboard.writeText(currentBinlog)
      setCopiedBinlog(true)
      setTimeout(() => {
        setCopiedBinlog(false)
      }, 2000)
    }
  }

  function copyPayload(id: string, payload: Record<string, unknown>) {
    if (typeof navigator !== 'undefined' && navigator.clipboard) {
      navigator.clipboard.writeText(JSON.stringify(payload, null, 2))
      setCopiedEventId(id)
      setTimeout(() => {
        setCopiedEventId((current) => (current === id ? null : current))
      }, 2000)
    }
  }

  function exportJson() {
    const dataStr =
      'data:text/json;charset=utf-8,' +
      encodeURIComponent(
        JSON.stringify(
          {
            pipeline: 'Postgres Source (OLTP) -> Snowflake DW (OLAP)',
            binlog_position: currentBinlog,
            timestamp: new Date().toISOString(),
            tables,
            events: filteredEvents,
          },
          null,
          2,
        ),
      )
    if (typeof document !== 'undefined') {
      const downloadAnchor = document.createElement('a')
      downloadAnchor.setAttribute('href', dataStr)
      downloadAnchor.setAttribute(
        'download',
        `cdc-replication-stream-${new Date().toISOString().slice(0, 19).replace(/:/g, '-')}.json`,
      )
      document.body.appendChild(downloadAnchor)
      downloadAnchor.click()
      downloadAnchor.remove()
      setExportedNotice(true)
      setTimeout(() => {
        setExportedNotice(false)
      }, 2000)
    }
  }

  return (
    <div data-slot="cdc-replication-stream" className={cn('w-full space-y-4', className)}>
      {/* Header: Sync Pipeline Overview & Global Controls */}
      <div className="flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between">
        <div className="flex items-start gap-3 sm:items-center">
          <div className="bg-card flex size-10 shrink-0 items-center justify-center rounded-lg border shadow-xs">
            <ArrowRightLeft className="text-primary size-5" aria-hidden="true" />
          </div>
          <div className="space-y-1">
            <div className="flex flex-wrap items-center gap-2">
              <h2 className="text-foreground text-2xl font-bold tracking-tight">CDC Replication Stream</h2>

              {/* Real-Time Status Badge */}
              {isSnapshotting ? (
                <div className="border-info/30 bg-info/10 text-info inline-flex items-center gap-1.5 rounded-full border px-2.5 py-0.5 text-xs font-medium">
                  <RefreshCw className="size-3 animate-spin" aria-hidden="true" />
                  <span>Snapshot Ingest Active</span>
                </div>
              ) : !isPaused ? (
                <div className="border-success/30 bg-success/10 text-success inline-flex items-center gap-1.5 rounded-full border px-2.5 py-0.5 text-xs font-medium">
                  <span className="relative flex size-2 shrink-0">
                    <span className="bg-success absolute inline-flex h-full w-full rounded-full opacity-75" />
                    <span className="bg-success relative inline-flex size-2 rounded-full" />
                  </span>
                  <span>Replication Streaming · 18ms Latency</span>
                </div>
              ) : (
                <div className="border-warning/30 bg-warning/10 text-warning inline-flex items-center gap-1.5 rounded-full border px-2.5 py-0.5 text-xs font-medium">
                  <span className="bg-warning relative inline-flex size-2 rounded-full" />
                  <span>Replication Paused</span>
                </div>
              )}
            </div>

            {/* Pipeline Architecture Breadcrumb */}
            <div className="flex flex-wrap items-center gap-1.5 text-xs">
              <span className="text-foreground font-semibold">Postgres Source (OLTP)</span>
              <ArrowRight className="text-muted-foreground size-3.5" aria-hidden="true" />
              <span className="text-primary font-semibold">Snowflake DW (OLAP)</span>
              <span className="text-muted-foreground hidden font-mono sm:inline">
                Debezium 2.7 · Apache Kafka · pgoutput
              </span>
            </div>
          </div>
        </div>

        {/* Header Action Controls & Binlog Pointer */}
        <div className="flex flex-wrap items-center gap-2">
          {/* Binlog Position Indicator Chip */}
          <button
            type="button"
            aria-label="Copy current binlog position"
            className="bg-muted/50 hover:bg-muted focus-visible:ring-ring flex items-center gap-1.5 rounded-md border px-2.5 py-1 text-xs font-medium transition-colors focus-visible:ring-2 focus-visible:outline-none"
            onClick={copyBinlogPosition}
          >
            <Terminal className="text-muted-foreground size-3.5" aria-hidden="true" />
            <span className="text-muted-foreground">Binlog:</span>
            <span className="text-foreground font-mono font-medium">{currentBinlog}</span>
            {copiedBinlog ? (
              <Check className="text-success size-3" aria-hidden="true" />
            ) : (
              <Copy className="text-muted-foreground size-3 opacity-70" aria-hidden="true" />
            )}
          </button>

          <Button variant="outline" size="sm" disabled={isSnapshotting} className="gap-1.5" onClick={triggerSnapshot}>
            <RefreshCw className={cn('size-3.5', isSnapshotting && 'text-primary animate-spin')} aria-hidden="true" />
            <span>{isSnapshotting ? 'Syncing Snapshot...' : 'Force Sync Snapshot'}</span>
          </Button>

          <Button
            variant="outline"
            size="sm"
            className={isPaused ? 'border-warning/40 text-warning' : ''}
            onClick={togglePause}
          >
            {isPaused ? (
              <Play className="size-3.5 fill-current" aria-hidden="true" />
            ) : (
              <Pause className="size-3.5" aria-hidden="true" />
            )}
            <span>{isPaused ? 'Resume Stream' : 'Pause Stream'}</span>
          </Button>

          <Button aria-label="Download attachment" variant="default" size="sm" className="gap-1.5" onClick={exportJson}>
            {exportedNotice ? (
              <Check className="text-success size-3.5" aria-hidden="true" />
            ) : (
              <Download className="size-3.5" aria-hidden="true" />
            )}
            <span>{exportedNotice ? 'Exported' : 'Export JSON'}</span>
          </Button>
        </div>
      </div>

      {/* Snapshot Notification Banner */}
      {snapshotNotice && (
        <div className="text-foreground border-info/30 bg-info/10 flex items-center justify-between rounded-lg border p-3 text-xs shadow-xs">
          <div className="flex items-center gap-2.5">
            <RefreshCw className="text-info size-4 shrink-0" aria-hidden="true" />
            <div>
              <span className="text-info font-semibold">Snapshot sync initiated:</span>
              <span>
                {' '}
                Executing non-blocking logical schema snapshot across 4 tables at WAL offset{' '}
                <code className="font-mono font-medium">mysql-bin.000412 : 8492014</code>.
              </span>
            </div>
          </div>
          <Badge variant="outline" className="font-mono text-xs">
            LSN: 0/16B38E0
          </Badge>
        </div>
      )}

      {/* 4 CDC Telemetry Metric Cards */}
      <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-4">
        {/* 1. Replication Lag */}
        <Card className="border-border shadow-xs">
          <CardContent className="p-4">
            <div className="flex items-center justify-between">
              <span className="text-muted-foreground text-xs font-medium">Replication Lag</span>
              <div className="bg-primary/10 text-primary border-primary/20 flex size-8 items-center justify-center rounded-md border">
                <Zap className="size-4" aria-hidden="true" />
              </div>
            </div>
            <div className="mt-3 space-y-1.5">
              <div className="flex items-baseline gap-2">
                <span className="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">18ms</span>
                <span className="text-muted-foreground text-xs">p99: 24ms</span>
              </div>
              <div className="flex items-center gap-2">
                <Badge variant="success" className="font-mono text-xs">
                  Sub-second real-time
                </Badge>
              </div>
              <div className="pt-1">
                <div className="text-muted-foreground flex justify-between text-xs">
                  <span>SLA Headroom</span>
                  <span className="font-mono">96.4%</span>
                </div>
                <Progress value={3.6} className="mt-1 h-1.5" />
              </div>
            </div>
          </CardContent>
        </Card>

        {/* 2. Throughput */}
        <Card className="border-border shadow-xs">
          <CardContent className="p-4">
            <div className="flex items-center justify-between">
              <span className="text-muted-foreground text-xs font-medium">Throughput</span>
              <div className="border-info/20 bg-info/10 text-info flex size-8 items-center justify-center rounded-md border">
                <Activity className="size-4" aria-hidden="true" />
              </div>
            </div>
            <div className="mt-3 space-y-1.5">
              <div className="flex items-baseline gap-1.5">
                <span className="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">1,420</span>
                <span className="text-muted-foreground text-xs">events/sec</span>
              </div>
              <div className="flex items-center gap-2">
                <Badge variant="info" className="font-mono text-xs">
                  380 KB/s bandwidth
                </Badge>
              </div>
              <div className="text-muted-foreground flex items-center justify-between pt-1 text-xs">
                <span>Hourly Pace</span>
                <span className="text-foreground font-mono font-medium">5.11M evts/hr</span>
              </div>
            </div>
          </CardContent>
        </Card>

        {/* 3. Total Synced Today */}
        <Card className="border-border shadow-xs">
          <CardContent className="p-4">
            <div className="flex items-center justify-between">
              <span className="text-muted-foreground text-xs font-medium">Total Synced Today</span>
              <div className="border-success/20 bg-success/10 text-success flex size-8 items-center justify-center rounded-md border">
                <Database className="size-4" aria-hidden="true" />
              </div>
            </div>
            <div className="mt-3 space-y-1.5">
              <div className="flex items-baseline gap-1.5">
                <span className="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">4.82M</span>
                <span className="text-muted-foreground text-xs">Row Changes</span>
              </div>
              <div className="flex items-center gap-2">
                <Badge variant="outline" className="border-success/30 text-success font-mono text-xs">
                  +14.2% vs yesterday
                </Badge>
              </div>
              <div className="text-muted-foreground flex items-center justify-between pt-1 text-xs">
                <span>WAL Integrity</span>
                <span className="text-success font-mono font-medium">100% Consistent</span>
              </div>
            </div>
          </CardContent>
        </Card>

        {/* 4. Error / Dead Letter Queue */}
        <Card className="border-border shadow-xs">
          <CardContent className="p-4">
            <div className="flex items-center justify-between">
              <span className="text-muted-foreground text-xs font-medium">Error / DLQ</span>
              <div className="border-success/20 bg-success/10 text-success flex size-8 items-center justify-center rounded-md border">
                <ShieldCheck className="size-4" aria-hidden="true" />
              </div>
            </div>
            <div className="mt-3 space-y-1.5">
              <div className="flex items-baseline gap-1.5">
                <span className="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">0</span>
                <span className="text-muted-foreground text-xs">Failed Events</span>
              </div>
              <div className="flex items-center gap-2">
                <Badge variant="success" className="font-mono text-xs">
                  DLQ Empty · Healthy
                </Badge>
              </div>
              <div className="text-muted-foreground flex items-center justify-between pt-1 text-xs">
                <span>Schema Drift</span>
                <span className="text-foreground font-mono font-medium">0 Violations</span>
              </div>
            </div>
          </CardContent>
        </Card>
      </div>

      {/* Active Synced Tables Table */}
      <Card className="border-border shadow-xs">
        <CardHeader className="pb-3">
          <div className="flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between">
            <div>
              <CardTitle className="text-base font-semibold">Active Synced Tables ({tables.length})</CardTitle>
              <CardDescription className="text-xs">
                Per-table WAL change capture distribution, row synchronization counts, and per-table replication latency
              </CardDescription>
            </div>
            <div className="text-muted-foreground flex items-center gap-2 text-xs">
              <span className="flex items-center gap-1">
                <span className="bg-success size-2 rounded-full" />
                INSERT
              </span>
              <span className="flex items-center gap-1">
                <span className="bg-info size-2 rounded-full" />
                UPDATE
              </span>
              <span className="flex items-center gap-1">
                <span className="bg-destructive size-2 rounded-full" />
                DELETE
              </span>
            </div>
          </div>
        </CardHeader>
        <CardContent className="p-0">
          <div className="overflow-x-auto">
            <Table density="cozy">
              <TableHeader>
                <TableRow>
                  <TableHead className="text-xs font-semibold">Table Name & Schema</TableHead>
                  <TableHead className="text-xs font-semibold">Change Operations Breakdown</TableHead>
                  <TableHead className="text-right text-xs font-semibold">Synced Rows Count</TableHead>
                  <TableHead className="text-right text-xs font-semibold">Replication Delay</TableHead>
                  <TableHead className="text-center text-xs font-semibold">Status</TableHead>
                </TableRow>
              </TableHeader>
              <TableBody>
                {tables.map((table) => (
                  <TableRow key={table.name} className="group">
                    {/* Table Name & Schema */}
                    <TableCell className="py-3">
                      <div className="space-y-0.5">
                        <div className="flex items-center gap-2">
                          <span className="text-foreground font-mono text-xs font-semibold">
                            {table.schema}.{table.name}
                          </span>
                          <Badge variant="outline" className="font-mono text-xs">
                            {table.primaryKey}
                          </Badge>
                        </div>
                        <p className="text-muted-foreground text-xs font-normal">Mode: {table.mode}</p>
                      </div>
                    </TableCell>

                    {/* Operations Multi-Segment Stacked Progress Bar & Percentages */}
                    <TableCell className="py-3">
                      <div className="w-full max-w-xs space-y-1.5">
                        {/* Stacked Progress Bar */}
                        <div className="bg-muted flex h-2 w-full overflow-hidden rounded-full border">
                          <div
                            className="bg-success transition-colors duration-300"
                            style={{ width: `${table.operations.insertPercent}%` }}
                            title={`INSERT: ${table.operations.insertPercent}%`}
                          />
                          <div
                            className="bg-info transition-colors duration-300"
                            style={{ width: `${table.operations.updatePercent}%` }}
                            title={`UPDATE: ${table.operations.updatePercent}%`}
                          />
                          <div
                            className="bg-destructive transition-colors duration-300"
                            style={{ width: `${table.operations.deletePercent}%` }}
                            title={`DELETE: ${table.operations.deletePercent}%`}
                          />
                        </div>

                        {/* Breakdown Text */}
                        <div className="flex items-center gap-2 font-mono text-xs">
                          <span className="text-success font-medium">INS {table.operations.insertPercent}%</span>
                          <span className="text-info font-medium">UPD {table.operations.updatePercent}%</span>
                          <span className="text-destructive font-medium">DEL {table.operations.deletePercent}%</span>
                        </div>
                      </div>
                    </TableCell>

                    {/* Synced Rows Count */}
                    <TableCell className="py-3 text-right">
                      <span className="text-foreground font-mono text-xs font-semibold tabular-nums">
                        {formatNumber(table.syncedRows)}
                      </span>
                      <p className="text-muted-foreground text-xs">rows committed</p>
                    </TableCell>

                    {/* Replication Delay */}
                    <TableCell className="py-3 text-right">
                      <span className="text-success text-success font-mono text-xs font-semibold tabular-nums">
                        {table.replicationDelayMs}ms
                      </span>
                      <p className="text-muted-foreground text-xs">sub-second</p>
                    </TableCell>

                    {/* Status Badge */}
                    <TableCell className="py-3 text-center">
                      <Badge variant="success" className="gap-1 font-mono text-xs">
                        <span className="bg-success size-1.5 animate-pulse rounded-full" />
                        Synchronized
                      </Badge>
                    </TableCell>
                  </TableRow>
                ))}
              </TableBody>
            </Table>
          </div>
        </CardContent>
      </Card>

      {/* Live CDC Event Stream Ticker Card */}
      <Card className="border-border shadow-xs">
        {/* Terminal Header Bar */}
        <div className="bg-muted/40 flex flex-col gap-3 border-b p-3 sm:flex-row sm:items-center sm:justify-between">
          <div className="flex items-center gap-2">
            <div className="flex items-center gap-1.5">
              <span className="bg-destructive/80 size-2.5 rounded-full" />
              <span className="bg-warning/80 size-2.5 rounded-full" />
              <span className="bg-success/80 size-2.5 rounded-full" />
            </div>
            <div>
              <span className="text-foreground text-xs font-semibold">Live CDC Event Stream Ticker</span>
              <span className="text-muted-foreground hidden font-mono text-xs sm:inline">
                {' '}
                · wal_level=logical · slot: debezium_cdc_01
              </span>
            </div>
          </div>

          <div className="flex items-center gap-2">
            <span className="text-muted-foreground hidden font-mono text-xs sm:inline">
              Matches: {filteredEvents.length} / {events.length}
            </span>
            <Button
              variant="ghost"
              size="xs"
              className="h-7 gap-1 px-2 text-xs"
              disabled={filteredEvents.length === 0}
              onClick={toggleAllExpand}
            >
              {allExpanded ? (
                <ChevronDown className="size-3.5" aria-hidden="true" />
              ) : (
                <ChevronRight className="size-3.5" aria-hidden="true" />
              )}
              <span>{allExpanded ? 'Collapse All' : 'Expand All'}</span>
            </Button>
          </div>
        </div>

        {/* Stream Filter Toolbar */}
        <div className="border-b p-3">
          <div className="flex flex-col gap-3 lg:flex-row lg:items-center lg:justify-between">
            {/* Search Input */}
            <div className="relative flex-1">
              <Search
                className="text-muted-foreground pointer-events-none absolute top-1/2 left-3 size-4 -translate-y-1/2"
                aria-hidden="true"
              />
              <Input
                value={searchQuery}
                onChange={(e) => setSearchQuery(e.target.value)}
                placeholder="Search table, operation, primary key, column, or /regex/..."
                className="pl-9 text-xs"
              />
            </div>

            {/* Operation Filter Buttons */}
            <div className="flex flex-wrap items-center gap-1.5">
              <span className="text-muted-foreground mr-1 flex items-center gap-1 text-xs font-medium">
                <Filter className="size-3" aria-hidden="true" />
                Op:
              </span>

              <button
                type="button"
                className={cn(
                  'focus-visible:ring-ring inline-flex items-center gap-1.5 rounded-full border px-2.5 py-1 text-xs font-medium transition-colors focus-visible:ring-2 focus-visible:outline-none',
                  selectedOperation === 'all'
                    ? 'border-primary bg-primary text-primary-foreground shadow-xs'
                    : 'border-border bg-card text-muted-foreground hover:bg-accent hover:text-foreground',
                )}
                onClick={() => setSelectedOperation('all')}
              >
                All
                <span
                  className={cn(
                    'py-0.2 rounded-full px-1.5 text-xs',
                    selectedOperation === 'all'
                      ? 'bg-primary-foreground/20 text-primary-foreground'
                      : 'bg-muted text-muted-foreground',
                  )}
                >
                  {operationCounts.all}
                </span>
              </button>

              <button
                type="button"
                className={cn(
                  'focus-visible:ring-ring inline-flex items-center gap-1.5 rounded-full border px-2.5 py-1 text-xs font-medium transition-colors focus-visible:ring-2 focus-visible:outline-none',
                  selectedOperation === 'INSERT'
                    ? 'border-success bg-success text-white shadow-xs'
                    : 'border-border bg-card text-muted-foreground hover:border-success/40 hover:text-success dark:hover:text-success',
                )}
                onClick={() => setSelectedOperation('INSERT')}
              >
                <span className="bg-success size-1.5 rounded-full" />
                INSERT
                <span
                  className={cn(
                    'py-0.2 rounded-full px-1.5 text-xs',
                    selectedOperation === 'INSERT' ? 'bg-white/20 text-white' : 'bg-success/10 text-success',
                  )}
                >
                  {operationCounts.INSERT}
                </span>
              </button>

              <button
                type="button"
                className={cn(
                  'focus-visible:ring-ring inline-flex items-center gap-1.5 rounded-full border px-2.5 py-1 text-xs font-medium transition-colors focus-visible:ring-2 focus-visible:outline-none',
                  selectedOperation === 'UPDATE'
                    ? 'border-info bg-info text-white shadow-xs'
                    : 'border-border bg-card text-muted-foreground hover:border-info/40 hover:text-info dark:hover:text-info',
                )}
                onClick={() => setSelectedOperation('UPDATE')}
              >
                <span className="bg-info size-1.5 rounded-full" />
                UPDATE
                <span
                  className={cn(
                    'py-0.2 rounded-full px-1.5 text-xs',
                    selectedOperation === 'UPDATE' ? 'bg-white/20 text-white' : 'bg-info/10 text-info',
                  )}
                >
                  {operationCounts.UPDATE}
                </span>
              </button>

              <button
                type="button"
                className={cn(
                  'focus-visible:ring-ring inline-flex items-center gap-1.5 rounded-full border px-2.5 py-1 text-xs font-medium transition-colors focus-visible:ring-2 focus-visible:outline-none',
                  selectedOperation === 'DELETE'
                    ? 'border-destructive bg-destructive text-white shadow-xs'
                    : 'border-border bg-card text-muted-foreground hover:border-destructive/40 hover:text-destructive dark:hover:text-destructive',
                )}
                onClick={() => setSelectedOperation('DELETE')}
              >
                <span className="bg-destructive size-1.5 rounded-full" />
                DELETE
                <span
                  className={cn(
                    'py-0.2 rounded-full px-1.5 text-xs',
                    selectedOperation === 'DELETE' ? 'bg-white/20 text-white' : 'bg-destructive/10 text-destructive',
                  )}
                >
                  {operationCounts.DELETE}
                </span>
              </button>
            </div>
          </div>
        </div>

        {/* Event Rows Feed */}
        <CardContent className="p-0">
          {/* Empty State */}
          {filteredEvents.length === 0 ? (
            <div className="flex flex-col items-center justify-center gap-3 px-4 py-16 text-center">
              <div className="bg-muted flex size-12 items-center justify-center rounded-full">
                <Database className="text-muted-foreground size-6 opacity-60" aria-hidden="true" />
              </div>
              <div className="space-y-1">
                <p className="text-foreground text-sm font-semibold">No CDC events match current criteria</p>
                <p className="text-muted-foreground text-xs">
                  {events.length === 0
                    ? 'The replication event stream buffer was cleared.'
                    : 'Try adjusting your operation filter or search query.'}
                </p>
              </div>
              <Button variant="outline" size="sm" className="mt-2 text-xs" onClick={resetStream}>
                <RefreshCw className="size-3.5" aria-hidden="true" />
                Restore CDC stream data
              </Button>
            </div>
          ) : (
            <ul className="divide-border/60 divide-y">
              {filteredEvents.map((event) => {
                const isExpanded = !!expandedIds[event.id]
                return (
                  <li
                    key={event.id}
                    className={cn('group transition-colors', isExpanded ? 'bg-muted/30' : 'hover:bg-muted/20')}
                  >
                    {/* Primary Row Trigger */}
                    <div
                      role="button"
                      tabIndex={0}
                      aria-expanded={isExpanded}
                      className="focus-visible:ring-ring flex cursor-pointer flex-col gap-3 p-3.5 focus-visible:ring-2 focus-visible:outline-none focus-visible:ring-inset sm:flex-row sm:items-center sm:justify-between"
                      onClick={() => toggleExpand(event.id)}
                      onKeyDown={(e) => {
                        if (e.key === 'Enter' || e.key === ' ') {
                          e.preventDefault()
                          toggleExpand(event.id)
                        }
                      }}
                    >
                      {/* Left Rail: Chevron + Timestamp + Operation Badge + Table + Summary */}
                      <div className="flex min-w-0 items-start gap-3 sm:items-center">
                        <button
                          type="button"
                          aria-label="Toggle before and after payload diff"
                          className={cn(
                            'text-muted-foreground group-hover:text-foreground mt-0.5 shrink-0 transition-transform sm:mt-0',
                            isExpanded && 'text-foreground rotate-90',
                          )}
                        >
                          <ChevronRight className="size-4" aria-hidden="true" />
                        </button>

                        <div className="space-y-1 sm:space-y-0.5">
                          <div className="flex flex-wrap items-center gap-2">
                            <span className="text-muted-foreground font-mono text-xs whitespace-nowrap">
                              {formatTimestamp(event.timestamp)}
                            </span>

                            {event.operation === 'INSERT' && (
                              <Badge className="bg-success/10 text-success border-transparent font-mono text-xs">
                                INSERT
                              </Badge>
                            )}
                            {event.operation === 'UPDATE' && (
                              <Badge className="bg-info/10 text-info border-transparent font-mono text-xs">
                                UPDATE
                              </Badge>
                            )}
                            {event.operation === 'DELETE' && (
                              <Badge className="bg-destructive/10 text-destructive border-transparent font-mono text-xs">
                                DELETE
                              </Badge>
                            )}

                            <span className="text-foreground font-mono text-xs font-semibold">{event.table}</span>

                            <span className="bg-muted text-muted-foreground rounded px-1.5 py-0.5 font-mono text-xs">
                              {event.primaryKey}
                            </span>
                          </div>

                          <p className="text-muted-foreground text-xs font-normal">{event.summary}</p>
                        </div>
                      </div>

                      {/* Right Rail: Binlog Offset & Tx ID */}
                      <div className="flex shrink-0 flex-wrap items-center gap-3 sm:justify-end">
                        <div className="bg-muted/60 flex items-center gap-1.5 rounded-md border px-2 py-1 font-mono text-xs">
                          <span className="text-muted-foreground">Tx:</span>
                          <span className="text-foreground font-medium">{event.txId}</span>
                        </div>

                        <div className="text-muted-foreground flex items-center gap-1.5 font-mono text-xs">
                          <span>{event.binlogPosition}</span>
                          <span className="opacity-50">·</span>
                          <span className="text-foreground/80 font-medium">{event.lsn}</span>
                        </div>
                      </div>
                    </div>

                    {/* Expanded Payload Diff View */}
                    {isExpanded && (
                      <div className="bg-muted/15 border-t px-4 py-3.5">
                        <div className="space-y-3">
                          {/* Modified Fields Tag Bar */}
                          {event.modifiedFields && event.modifiedFields.length > 0 && (
                            <div className="bg-card flex flex-wrap items-center gap-1.5 rounded-md border p-2.5 text-xs">
                              <span className="text-muted-foreground font-medium">Modified Columns:</span>
                              {event.modifiedFields.map((field) => (
                                <Badge key={field} variant="outline" className="text-info font-mono text-xs">
                                  {field}
                                </Badge>
                              ))}
                            </div>
                          )}

                          {/* Side-by-Side or Stacked JSON Diff */}
                          <div className="grid grid-cols-1 gap-3 lg:grid-cols-2">
                            {/* Before Payload (For UPDATE and DELETE) */}
                            {event.before && (
                              <div className="overflow-hidden rounded-md border border-zinc-800 bg-zinc-950 font-mono text-xs text-zinc-100 shadow-inner">
                                <div className="flex items-center justify-between border-b border-zinc-800 bg-zinc-900/90 px-3 py-1.5">
                                  <div className="flex items-center gap-2">
                                    <span className="bg-destructive size-2 rounded-full" />
                                    <span className="text-destructive text-xs font-semibold">before_image.json</span>
                                    <span className="text-muted-foreground text-xs font-normal">(Previous State)</span>
                                  </div>
                                  <Button
                                    variant="ghost"
                                    size="xs"
                                    className="h-6 gap-1 px-2 text-xs text-zinc-300 hover:bg-zinc-800 hover:text-zinc-100"
                                    onClick={() => copyPayload(`${event.id}-before`, event.before!)}
                                  >
                                    {copiedEventId === `${event.id}-before` ? (
                                      <Check className="text-success size-3" aria-hidden="true" />
                                    ) : (
                                      <Copy className="size-3" aria-hidden="true" />
                                    )}
                                    <span>{copiedEventId === `${event.id}-before` ? 'Copied' : 'Copy'}</span>
                                  </Button>
                                </div>

                                <pre className="max-h-60 overflow-x-auto overflow-y-auto p-3 text-xs leading-relaxed select-text">
                                  <code className="text-destructive/90">{JSON.stringify(event.before, null, 2)}</code>
                                </pre>
                              </div>
                            )}

                            {/* After Payload (For INSERT and UPDATE) */}
                            {event.after && (
                              <div
                                className={cn(
                                  'overflow-hidden rounded-md border border-zinc-800 bg-zinc-950 font-mono text-xs text-zinc-100 shadow-inner',
                                  !event.before && 'lg:col-span-2',
                                )}
                              >
                                <div className="flex items-center justify-between border-b border-zinc-800 bg-zinc-900/90 px-3 py-1.5">
                                  <div className="flex items-center gap-2">
                                    <span className="bg-success size-2 rounded-full" />
                                    <span className="text-success text-xs font-semibold">after_image.json</span>
                                    <span className="text-muted-foreground text-xs font-normal">
                                      (Replicated Target State)
                                    </span>
                                  </div>
                                  <Button
                                    variant="ghost"
                                    size="xs"
                                    className="h-6 gap-1 px-2 text-xs text-zinc-300 hover:bg-zinc-800 hover:text-zinc-100"
                                    onClick={() => copyPayload(`${event.id}-after`, event.after!)}
                                  >
                                    {copiedEventId === `${event.id}-after` ? (
                                      <Check className="text-success size-3" aria-hidden="true" />
                                    ) : (
                                      <Copy className="size-3" aria-hidden="true" />
                                    )}
                                    <span>{copiedEventId === `${event.id}-after` ? 'Copied' : 'Copy'}</span>
                                  </Button>
                                </div>

                                <pre className="max-h-60 overflow-x-auto overflow-y-auto p-3 text-xs leading-relaxed select-text">
                                  <code className="text-success">{JSON.stringify(event.after, null, 2)}</code>
                                </pre>
                              </div>
                            )}
                          </div>
                        </div>
                      </div>
                    )}
                  </li>
                )
              })}
            </ul>
          )}
        </CardContent>

        {/* Bottom Engine & Ingest Protocol Telemetry Bar */}
        <div className="bg-muted/40 flex flex-col gap-2.5 border-t px-4 py-3 text-xs sm:flex-row sm:items-center sm:justify-between">
          <div className="text-muted-foreground flex flex-wrap items-center gap-4">
            <div className="text-foreground flex items-center gap-1.5 font-medium">
              <Activity className="text-success size-3.5" aria-hidden="true" />
              <span>CDC Pipeline:</span>
              <span className="font-mono">{isPaused ? '0 evt/s (Paused)' : '1,420 events/sec'}</span>
            </div>

            <Separator orientation="vertical" className="hidden h-3.5 sm:block" />

            <div className="flex items-center gap-1.5">
              <Layers className="size-3.5" aria-hidden="true" />
              <span>Sink Topic:</span>
              <span className="text-foreground font-mono">snowflake.cdc.raw_events</span>
            </div>

            <Separator orientation="vertical" className="hidden h-3.5 sm:block" />

            <div className="flex items-center gap-1.5">
              <Server className="text-info size-3.5" aria-hidden="true" />
              <span>Format:</span>
              <span className="text-foreground font-mono">JSON + Schema Registry (v2)</span>
            </div>
          </div>

          <div className="text-muted-foreground flex items-center gap-2 font-mono">
            <span className="bg-success size-1.5 rounded-full" />
            <span>Postgres WAL2JSON · TLS 1.3 · Heartbeat: 1,000ms OK</span>
          </div>
        </div>
      </Card>
    </div>
  )
}

Raw manifest:https://uipkge.dev/r/react/cdc-replication-stream.json