Cdc Replication Stream

Installation

Variants

Props

Schema

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

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
}

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>
}

Files installed (1)

• app/components/blocks/CdcReplicationStream.vue45.9 kB

  Copy

  <script setup lang="ts">
  import { computed, ref } from 'vue'
  import type { HTMLAttributes } from 'vue'
  import {
    Activity,
    ArrowRight,
    ArrowRightLeft,
    Check,
    ChevronDown,
    ChevronRight,
    Copy,
    Database,
    Download,
    Filter,
    Layers,
    Pause,
    Play,
    RefreshCw,
    Search,
    Server,
    ShieldCheck,
    Terminal,
    Zap,
  } from 'lucide-vue-next'
  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>
  }
  
  interface Props {
    initialEvents?: CdcStreamEvent[]
    initialTables?: CdcTableMetric[]
    initialPaused?: boolean
    initialOperationFilter?: 'all' | CdcOperation
    initialSearch?: string
    class?: HTMLAttributes['class']
  }
  
  const props = withDefaults(defineProps<Props>(), {
    initialPaused: false,
    initialOperationFilter: 'all',
    initialSearch: '',
  })
  
  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 tables = ref<CdcTableMetric[]>(props.initialTables ? [...props.initialTables] : [...defaultTables])
  const events = ref<CdcStreamEvent[]>(props.initialEvents ? [...props.initialEvents] : [...defaultEvents])
  const isPaused = ref(props.initialPaused)
  const isSnapshotting = ref(false)
  const snapshotNotice = ref(false)
  const selectedOperation = ref<'all' | CdcOperation>(props.initialOperationFilter)
  const searchQuery = ref(props.initialSearch)
  const expandedIds = ref<Record<string, boolean>>({
    'evt-cdc-104': true,
  })
  const copiedEventId = ref<string | null>(null)
  const copiedBinlog = ref(false)
  const exportedNotice = ref(false)
  
  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)
    )
  }
  
  const filteredEvents = computed(() => {
    return events.value.filter((event) => {
      const matchesOp = selectedOperation.value === 'all' || event.operation === selectedOperation.value
      const matchesText = matchesSearch(event, searchQuery.value)
      return matchesOp && matchesText
    })
  })
  
  const operationCounts = computed(() => {
    return {
      all: events.value.length,
      INSERT: events.value.filter((e) => e.operation === 'INSERT').length,
      UPDATE: events.value.filter((e) => e.operation === 'UPDATE').length,
      DELETE: events.value.filter((e) => e.operation === 'DELETE').length,
    }
  })
  
  const allExpanded = computed(() => {
    return filteredEvents.value.length > 0 && filteredEvents.value.every((e) => expandedIds.value[e.id])
  })
  
  function togglePause() {
    isPaused.value = !isPaused.value
  }
  
  function toggleExpand(id: string) {
    expandedIds.value[id] = !expandedIds.value[id]
  }
  
  function toggleAllExpand() {
    if (allExpanded.value) {
      expandedIds.value = {}
    } else {
      const next: Record<string, boolean> = {}
      filteredEvents.value.forEach((e) => {
        next[e.id] = true
      })
      expandedIds.value = next
    }
  }
  
  function triggerSnapshot() {
    if (isSnapshotting.value) return
    isSnapshotting.value = true
    snapshotNotice.value = true
  
    setTimeout(() => {
      isSnapshotting.value = false
    }, 2200)
  
    setTimeout(() => {
      snapshotNotice.value = false
    }, 6000)
  }
  
  function clearStream() {
    events.value = []
    expandedIds.value = {}
  }
  
  function resetStream() {
    events.value = props.initialEvents ? [...props.initialEvents] : [...defaultEvents]
    searchQuery.value = ''
    selectedOperation.value = 'all'
    expandedIds.value = { 'evt-cdc-104': true }
  }
  
  function copyBinlogPosition() {
    if (typeof navigator !== 'undefined' && navigator.clipboard) {
      navigator.clipboard.writeText(currentBinlog)
      copiedBinlog.value = true
      setTimeout(() => {
        copiedBinlog.value = false
      }, 2000)
    }
  }
  
  function copyPayload(id: string, payload: Record<string, unknown>) {
    if (typeof navigator !== 'undefined' && navigator.clipboard) {
      navigator.clipboard.writeText(JSON.stringify(payload, null, 2))
      copiedEventId.value = id
      setTimeout(() => {
        if (copiedEventId.value === id) {
          copiedEventId.value = null
        }
      }, 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: tables.value,
            events: filteredEvents.value,
          },
          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()
      exportedNotice.value = true
      setTimeout(() => {
        exportedNotice.value = false
      }, 2000)
    }
  }
  
  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)
  }
  </script>
  
  <template>
    <div data-slot="cdc-replication-stream" :class="cn('w-full space-y-4', props.class)">
      <!-- Header: Sync Pipeline Overview & Global Controls -->
      <div class="flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between">
        <div class="flex items-start gap-3 sm:items-center">
          <div class="bg-card flex size-10 shrink-0 items-center justify-center rounded-lg border shadow-xs">
            <ArrowRightLeft class="text-primary size-5" aria-hidden="true" />
          </div>
          <div class="space-y-1">
            <div class="flex flex-wrap items-center gap-2">
              <h2 class="text-foreground text-2xl font-bold tracking-tight">CDC Replication Stream</h2>
  
              <!-- Real-Time Status Badge -->
              <div
                v-if="isSnapshotting"
                class="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 class="size-3 animate-spin" aria-hidden="true" />
                <span>Snapshot Ingest Active</span>
              </div>
              <div
                v-else-if="!isPaused"
                class="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 class="relative flex size-2 shrink-0">
                  <span class="bg-success absolute inline-flex h-full w-full rounded-full opacity-75" />
                  <span class="bg-success relative inline-flex size-2 rounded-full" />
                </span>
                <span>Replication Streaming · 18ms Latency</span>
              </div>
              <div
                v-else
                class="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 class="bg-warning relative inline-flex size-2 rounded-full" />
                <span>Replication Paused</span>
              </div>
            </div>
  
            <!-- Pipeline Architecture Breadcrumb -->
            <div class="flex flex-wrap items-center gap-1.5 text-xs">
              <span class="text-foreground font-semibold">Postgres Source (OLTP)</span>
              <ArrowRight class="text-muted-foreground size-3.5" aria-hidden="true" />
              <span class="text-primary font-semibold">Snowflake DW (OLAP)</span>
              <span class="text-muted-foreground hidden font-mono sm:inline">Debezium 2.7 · Apache Kafka · pgoutput</span>
            </div>
          </div>
        </div>
  
        <!-- Header Action Controls & Binlog Pointer -->
        <div class="flex flex-wrap items-center gap-2">
          <!-- Binlog Position Indicator Chip -->
          <button
            type="button"
            aria-label="Copy current binlog position"
            class="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"
            @click="copyBinlogPosition"
          >
            <Terminal class="text-muted-foreground size-3.5" aria-hidden="true" />
            <span class="text-muted-foreground">Binlog:</span>
            <span class="text-foreground font-mono font-medium">{{ currentBinlog }}</span>
            <Check v-if="copiedBinlog" class="text-success size-3" aria-hidden="true" />
            <Copy v-else class="text-muted-foreground size-3 opacity-70" aria-hidden="true" />
          </button>
  
          <Button variant="outline" size="sm" :disabled="isSnapshotting" class="gap-1.5" @click="triggerSnapshot">
            <RefreshCw :class="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"
            :class="isPaused ? 'border-warning/40 text-warning' : ''"
            @click="togglePause"
          >
            <Play v-if="isPaused" class="size-3.5 fill-current" aria-hidden="true" />
            <Pause v-else class="size-3.5" aria-hidden="true" />
            <span>{{ isPaused ? 'Resume Stream' : 'Pause Stream' }}</span>
          </Button>
  
          <Button aria-label="Download attachment" variant="default" size="sm" class="gap-1.5" @click="exportJson">
            <Check v-if="exportedNotice" class="text-success size-3.5" aria-hidden="true" />
            <Download v-else class="size-3.5" aria-hidden="true" />
            <span>{{ exportedNotice ? 'Exported' : 'Export JSON' }}</span>
          </Button>
        </div>
      </div>
  
      <!-- Snapshot Notification Banner -->
      <div
        v-if="snapshotNotice"
        class="text-foreground border-info/30 bg-info/10 flex items-center justify-between rounded-lg border p-3 text-xs shadow-xs"
      >
        <div class="flex items-center gap-2.5">
          <RefreshCw class="text-info size-4 shrink-0" aria-hidden="true" />
          <div>
            <span class="text-info font-semibold">Snapshot sync initiated:</span>
            <span>
              Executing non-blocking logical schema snapshot across 4 tables at WAL offset
              <code class="font-mono font-medium">mysql-bin.000412 : 8492014</code>.
            </span>
          </div>
        </div>
        <Badge variant="outline" class="font-mono text-xs">LSN: 0/16B38E0</Badge>
      </div>
  
      <!-- 4 CDC Telemetry Metric Cards -->
      <div class="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-4">
        <!-- 1. Replication Lag -->
        <Card class="border-border shadow-xs">
          <CardContent class="p-4">
            <div class="flex items-center justify-between">
              <span class="text-muted-foreground text-xs font-medium">Replication Lag</span>
              <div
                class="bg-primary/10 text-primary border-primary/20 flex size-8 items-center justify-center rounded-md border"
              >
                <Zap class="size-4" aria-hidden="true" />
              </div>
            </div>
            <div class="mt-3 space-y-1.5">
              <div class="flex items-baseline gap-2">
                <span class="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">18ms</span>
                <span class="text-muted-foreground text-xs">p99: 24ms</span>
              </div>
              <div class="flex items-center gap-2">
                <Badge variant="success" class="font-mono text-xs"> Sub-second real-time </Badge>
              </div>
              <div class="pt-1">
                <div class="text-muted-foreground flex justify-between text-xs">
                  <span>SLA Headroom</span>
                  <span class="font-mono">96.4%</span>
                </div>
                <Progress :model-value="3.6" class="mt-1 h-1.5" />
              </div>
            </div>
          </CardContent>
        </Card>
  
        <!-- 2. Throughput -->
        <Card class="border-border shadow-xs">
          <CardContent class="p-4">
            <div class="flex items-center justify-between">
              <span class="text-muted-foreground text-xs font-medium">Throughput</span>
              <div class="border-info/20 bg-info/10 text-info flex size-8 items-center justify-center rounded-md border">
                <Activity class="size-4" aria-hidden="true" />
              </div>
            </div>
            <div class="mt-3 space-y-1.5">
              <div class="flex items-baseline gap-1.5">
                <span class="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">1,420</span>
                <span class="text-muted-foreground text-xs">events/sec</span>
              </div>
              <div class="flex items-center gap-2">
                <Badge variant="info" class="font-mono text-xs"> 380 KB/s bandwidth </Badge>
              </div>
              <div class="text-muted-foreground flex items-center justify-between pt-1 text-xs">
                <span>Hourly Pace</span>
                <span class="text-foreground font-mono font-medium">5.11M evts/hr</span>
              </div>
            </div>
          </CardContent>
        </Card>
  
        <!-- 3. Total Synced Today -->
        <Card class="border-border shadow-xs">
          <CardContent class="p-4">
            <div class="flex items-center justify-between">
              <span class="text-muted-foreground text-xs font-medium">Total Synced Today</span>
              <div
                class="border-success/20 bg-success/10 text-success flex size-8 items-center justify-center rounded-md border"
              >
                <Database class="size-4" aria-hidden="true" />
              </div>
            </div>
            <div class="mt-3 space-y-1.5">
              <div class="flex items-baseline gap-1.5">
                <span class="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">4.82M</span>
                <span class="text-muted-foreground text-xs">Row Changes</span>
              </div>
              <div class="flex items-center gap-2">
                <Badge variant="outline" class="border-success/30 text-success font-mono text-xs">
                  +14.2% vs yesterday
                </Badge>
              </div>
              <div class="text-muted-foreground flex items-center justify-between pt-1 text-xs">
                <span>WAL Integrity</span>
                <span class="text-success font-mono font-medium">100% Consistent</span>
              </div>
            </div>
          </CardContent>
        </Card>
  
        <!-- 4. Error / Dead Letter Queue -->
        <Card class="border-border shadow-xs">
          <CardContent class="p-4">
            <div class="flex items-center justify-between">
              <span class="text-muted-foreground text-xs font-medium">Error / DLQ</span>
              <div
                class="border-success/20 bg-success/10 text-success flex size-8 items-center justify-center rounded-md border"
              >
                <ShieldCheck class="size-4" aria-hidden="true" />
              </div>
            </div>
            <div class="mt-3 space-y-1.5">
              <div class="flex items-baseline gap-1.5">
                <span class="text-foreground font-mono text-2xl font-bold tracking-tight tabular-nums">0</span>
                <span class="text-muted-foreground text-xs">Failed Events</span>
              </div>
              <div class="flex items-center gap-2">
                <Badge variant="success" class="font-mono text-xs"> DLQ Empty · Healthy </Badge>
              </div>
              <div class="text-muted-foreground flex items-center justify-between pt-1 text-xs">
                <span>Schema Drift</span>
                <span class="text-foreground font-mono font-medium">0 Violations</span>
              </div>
            </div>
          </CardContent>
        </Card>
      </div>
  
      <!-- Active Synced Tables Table -->
      <Card class="border-border shadow-xs">
        <CardHeader class="pb-3">
          <div class="flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between">
            <div>
              <CardTitle class="text-base font-semibold">Active Synced Tables ({{ tables.length }})</CardTitle>
              <CardDescription class="text-xs">
                Per-table WAL change capture distribution, row synchronization counts, and per-table replication latency
              </CardDescription>
            </div>
            <div class="text-muted-foreground flex items-center gap-2 text-xs">
              <span class="flex items-center gap-1">
                <span class="bg-success size-2 rounded-full" />
                INSERT
              </span>
              <span class="flex items-center gap-1">
                <span class="bg-info size-2 rounded-full" />
                UPDATE
              </span>
              <span class="flex items-center gap-1">
                <span class="bg-destructive size-2 rounded-full" />
                DELETE
              </span>
            </div>
          </div>
        </CardHeader>
        <CardContent class="p-0">
          <div class="overflow-x-auto">
            <Table density="cozy">
              <TableHeader>
                <TableRow>
                  <TableHead class="text-xs font-semibold">Table Name & Schema</TableHead>
                  <TableHead class="text-xs font-semibold">Change Operations Breakdown</TableHead>
                  <TableHead class="text-right text-xs font-semibold">Synced Rows Count</TableHead>
                  <TableHead class="text-right text-xs font-semibold">Replication Delay</TableHead>
                  <TableHead class="text-center text-xs font-semibold">Status</TableHead>
                </TableRow>
              </TableHeader>
              <TableBody>
                <TableRow v-for="table in tables" :key="table.name" class="group">
                  <!-- Table Name & Schema -->
                  <TableCell class="py-3">
                    <div class="space-y-0.5">
                      <div class="flex items-center gap-2">
                        <span class="text-foreground font-mono text-xs font-semibold">
                          {{ table.schema }}.{{ table.name }}
                        </span>
                        <Badge variant="outline" class="font-mono text-xs">
                          {{ table.primaryKey }}
                        </Badge>
                      </div>
                      <p class="text-muted-foreground text-xs font-normal">Mode: {{ table.mode }}</p>
                    </div>
                  </TableCell>
  
                  <!-- Operations Multi-Segment Stacked Progress Bar & Percentages -->
                  <TableCell class="py-3">
                    <div class="w-full max-w-xs space-y-1.5">
                      <!-- Stacked Progress Bar -->
                      <div class="bg-muted flex h-2 w-full overflow-hidden rounded-full border">
                        <div
                          class="bg-success transition-colors duration-300"
                          :style="{ width: `${table.operations.insertPercent}%` }"
                          :title="`INSERT: ${table.operations.insertPercent}%`"
                        />
                        <div
                          class="bg-info transition-colors duration-300"
                          :style="{ width: `${table.operations.updatePercent}%` }"
                          :title="`UPDATE: ${table.operations.updatePercent}%`"
                        />
                        <div
                          class="bg-destructive transition-colors duration-300"
                          :style="{ width: `${table.operations.deletePercent}%` }"
                          :title="`DELETE: ${table.operations.deletePercent}%`"
                        />
                      </div>
  
                      <!-- Breakdown Text -->
                      <div class="flex items-center gap-2 font-mono text-xs">
                        <span class="text-success font-medium"> INS {{ table.operations.insertPercent }}% </span>
                        <span class="text-info font-medium"> UPD {{ table.operations.updatePercent }}% </span>
                        <span class="text-destructive font-medium"> DEL {{ table.operations.deletePercent }}% </span>
                      </div>
                    </div>
                  </TableCell>
  
                  <!-- Synced Rows Count -->
                  <TableCell class="py-3 text-right">
                    <span class="text-foreground font-mono text-xs font-semibold tabular-nums">
                      {{ formatNumber(table.syncedRows) }}
                    </span>
                    <p class="text-muted-foreground text-xs">rows committed</p>
                  </TableCell>
  
                  <!-- Replication Delay -->
                  <TableCell class="py-3 text-right">
                    <span class="text-success text-success font-mono text-xs font-semibold tabular-nums">
                      {{ table.replicationDelayMs }}ms
                    </span>
                    <p class="text-muted-foreground text-xs">sub-second</p>
                  </TableCell>
  
                  <!-- Status Badge -->
                  <TableCell class="py-3 text-center">
                    <Badge variant="success" class="gap-1 font-mono text-xs">
                      <span class="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 class="border-border shadow-xs">
        <!-- Terminal Header Bar -->
        <div class="bg-muted/40 flex flex-col gap-3 border-b p-3 sm:flex-row sm:items-center sm:justify-between">
          <div class="flex items-center gap-2">
            <div class="flex items-center gap-1.5">
              <span class="bg-destructive/80 size-2.5 rounded-full" />
              <span class="bg-warning/80 size-2.5 rounded-full" />
              <span class="bg-success/80 size-2.5 rounded-full" />
            </div>
            <div>
              <span class="text-foreground text-xs font-semibold">Live CDC Event Stream Ticker</span>
              <span class="text-muted-foreground hidden font-mono text-xs sm:inline">
                · wal_level=logical · slot: debezium_cdc_01
              </span>
            </div>
          </div>
  
          <div class="flex items-center gap-2">
            <span class="text-muted-foreground hidden font-mono text-xs sm:inline">
              Matches: {{ filteredEvents.length }} / {{ events.length }}
            </span>
            <Button
              variant="ghost"
              size="xs"
              class="h-7 gap-1 px-2 text-xs"
              :disabled="filteredEvents.length === 0"
              @click="toggleAllExpand"
            >
              <ChevronDown v-if="allExpanded" class="size-3.5" aria-hidden="true" />
              <ChevronRight v-else class="size-3.5" aria-hidden="true" />
              <span>{{ allExpanded ? 'Collapse All' : 'Expand All' }}</span>
            </Button>
          </div>
        </div>
  
        <!-- Stream Filter Toolbar -->
        <div class="border-b p-3">
          <div class="flex flex-col gap-3 lg:flex-row lg:items-center lg:justify-between">
            <!-- Search Input -->
            <div class="relative flex-1">
              <Search
                class="text-muted-foreground pointer-events-none absolute top-1/2 left-3 size-4 -translate-y-1/2"
                aria-hidden="true"
              />
              <Input
                v-model="searchQuery"
                placeholder="Search table, operation, primary key, column, or /regex/..."
                class="pl-9 text-xs"
              />
            </div>
  
            <!-- Operation Filter Buttons -->
            <div class="flex flex-wrap items-center gap-1.5">
              <span class="text-muted-foreground mr-1 flex items-center gap-1 text-xs font-medium">
                <Filter class="size-3" aria-hidden="true" />
                Op:
              </span>
  
              <button
                type="button"
                :class="
                  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',
                  )
                "
                @click="selectedOperation = 'all'"
              >
                All
                <span
                  :class="
                    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"
                :class="
                  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',
                  )
                "
                @click="selectedOperation = 'INSERT'"
              >
                <span class="bg-success size-1.5 rounded-full" />
                INSERT
                <span
                  :class="
                    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"
                :class="
                  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',
                  )
                "
                @click="selectedOperation = 'UPDATE'"
              >
                <span class="bg-info size-1.5 rounded-full" />
                UPDATE
                <span
                  :class="
                    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"
                :class="
                  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',
                  )
                "
                @click="selectedOperation = 'DELETE'"
              >
                <span class="bg-destructive size-1.5 rounded-full" />
                DELETE
                <span
                  :class="
                    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 class="p-0">
          <!-- Empty State -->
          <div
            v-if="filteredEvents.length === 0"
            class="flex flex-col items-center justify-center gap-3 px-4 py-16 text-center"
          >
            <div class="bg-muted flex size-12 items-center justify-center rounded-full">
              <Database class="text-muted-foreground size-6 opacity-60" aria-hidden="true" />
            </div>
            <div class="space-y-1">
              <p class="text-foreground text-sm font-semibold">No CDC events match current criteria</p>
              <p class="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" class="mt-2 text-xs" @click="resetStream">
              <RefreshCw class="size-3.5" aria-hidden="true" />
              Restore CDC stream data
            </Button>
          </div>
  
          <!-- Event List -->
          <ul v-else class="divide-border/60 divide-y">
            <li
              v-for="event in filteredEvents"
              :key="event.id"
              :class="cn('group transition-colors', expandedIds[event.id] ? 'bg-muted/30' : 'hover:bg-muted/20')"
            >
              <!-- Primary Row Trigger -->
              <div
                role="button"
                tabindex="0"
                :aria-expanded="!!expandedIds[event.id]"
                class="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"
                @click="toggleExpand(event.id)"
                @keydown.enter.prevent="toggleExpand(event.id)"
                @keydown.space.prevent="toggleExpand(event.id)"
              >
                <!-- Left Rail: Chevron + Timestamp + Operation Badge + Table + Summary -->
                <div class="flex min-w-0 items-start gap-3 sm:items-center">
                  <button
                    type="button"
                    aria-label="Toggle before and after payload diff"
                    class="text-muted-foreground group-hover:text-foreground mt-0.5 shrink-0 transition-transform sm:mt-0"
                    :class="expandedIds[event.id] ? 'text-foreground rotate-90' : ''"
                  >
                    <ChevronRight class="size-4" aria-hidden="true" />
                  </button>
  
                  <div class="space-y-1 sm:space-y-0.5">
                    <div class="flex flex-wrap items-center gap-2">
                      <span class="text-muted-foreground font-mono text-xs whitespace-nowrap">
                        {{ formatTimestamp(event.timestamp) }}
                      </span>
  
                      <Badge
                        v-if="event.operation === 'INSERT'"
                        class="bg-success/10 text-success border-transparent font-mono text-xs"
                      >
                        INSERT
                      </Badge>
                      <Badge
                        v-else-if="event.operation === 'UPDATE'"
                        class="bg-info/10 text-info border-transparent font-mono text-xs"
                      >
                        UPDATE
                      </Badge>
                      <Badge v-else class="bg-destructive/10 text-destructive border-transparent font-mono text-xs">
                        DELETE
                      </Badge>
  
                      <span class="text-foreground font-mono text-xs font-semibold">
                        {{ event.table }}
                      </span>
  
                      <span class="bg-muted text-muted-foreground rounded px-1.5 py-0.5 font-mono text-xs">
                        {{ event.primaryKey }}
                      </span>
                    </div>
  
                    <p class="text-muted-foreground text-xs font-normal">
                      {{ event.summary }}
                    </p>
                  </div>
                </div>
  
                <!-- Right Rail: Binlog Offset & Tx ID -->
                <div class="flex shrink-0 flex-wrap items-center gap-3 sm:justify-end">
                  <div class="bg-muted/60 flex items-center gap-1.5 rounded-md border px-2 py-1 font-mono text-xs">
                    <span class="text-muted-foreground">Tx:</span>
                    <span class="text-foreground font-medium">{{ event.txId }}</span>
                  </div>
  
                  <div class="text-muted-foreground flex items-center gap-1.5 font-mono text-xs">
                    <span>{{ event.binlogPosition }}</span>
                    <span class="opacity-50">·</span>
                    <span class="text-foreground/80 font-medium">{{ event.lsn }}</span>
                  </div>
                </div>
              </div>
  
              <!-- Expanded Payload Diff View -->
              <div v-if="expandedIds[event.id]" class="bg-muted/15 border-t px-4 py-3.5">
                <div class="space-y-3">
                  <!-- Modified Fields Tag Bar -->
                  <div
                    v-if="event.modifiedFields && event.modifiedFields.length > 0"
                    class="bg-card flex flex-wrap items-center gap-1.5 rounded-md border p-2.5 text-xs"
                  >
                    <span class="text-muted-foreground font-medium">Modified Columns:</span>
                    <Badge
                      v-for="field in event.modifiedFields"
                      :key="field"
                      variant="outline"
                      class="text-info font-mono text-xs"
                    >
                      {{ field }}
                    </Badge>
                  </div>
  
                  <!-- Side-by-Side or Stacked JSON Diff -->
                  <div class="grid grid-cols-1 gap-3 lg:grid-cols-2">
                    <!-- Before Payload (For UPDATE and DELETE) -->
                    <div
                      v-if="event.before"
                      class="overflow-hidden rounded-md border border-zinc-800 bg-zinc-950 font-mono text-xs text-zinc-100 shadow-inner"
                    >
                      <div class="flex items-center justify-between border-b border-zinc-800 bg-zinc-900/90 px-3 py-1.5">
                        <div class="flex items-center gap-2">
                          <span class="bg-destructive size-2 rounded-full" />
                          <span class="text-destructive text-xs font-semibold">before_image.json</span>
                          <span class="text-muted-foreground text-xs font-normal">(Previous State)</span>
                        </div>
                        <Button
                          variant="ghost"
                          size="xs"
                          class="h-6 gap-1 px-2 text-xs text-zinc-300 hover:bg-zinc-800 hover:text-zinc-100"
                          @click="copyPayload(event.id + '-before', event.before)"
                        >
                          <Check
                            v-if="copiedEventId === event.id + '-before'"
                            class="text-success size-3"
                            aria-hidden="true"
                          />
                          <Copy v-else class="size-3" aria-hidden="true" />
                          <span>{{ copiedEventId === event.id + '-before' ? 'Copied' : 'Copy' }}</span>
                        </Button>
                      </div>
  
                      <pre
                        class="max-h-60 overflow-x-auto overflow-y-auto p-3 text-xs leading-relaxed select-text"
                      ><code class="text-destructive/90">{{ JSON.stringify(event.before, null, 2) }}</code></pre>
                    </div>
  
                    <!-- After Payload (For INSERT and UPDATE) -->
                    <div
                      v-if="event.after"
                      :class="
                        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 class="flex items-center justify-between border-b border-zinc-800 bg-zinc-900/90 px-3 py-1.5">
                        <div class="flex items-center gap-2">
                          <span class="bg-success size-2 rounded-full" />
                          <span class="text-success text-xs font-semibold">after_image.json</span>
                          <span class="text-muted-foreground text-xs font-normal">(Replicated Target State)</span>
                        </div>
                        <Button
                          variant="ghost"
                          size="xs"
                          class="h-6 gap-1 px-2 text-xs text-zinc-300 hover:bg-zinc-800 hover:text-zinc-100"
                          @click="copyPayload(event.id + '-after', event.after)"
                        >
                          <Check
                            v-if="copiedEventId === event.id + '-after'"
                            class="text-success size-3"
                            aria-hidden="true"
                          />
                          <Copy v-else class="size-3" aria-hidden="true" />
                          <span>{{ copiedEventId === event.id + '-after' ? 'Copied' : 'Copy' }}</span>
                        </Button>
                      </div>
  
                      <pre
                        class="max-h-60 overflow-x-auto overflow-y-auto p-3 text-xs leading-relaxed select-text"
                      ><code class="text-success">{{ JSON.stringify(event.after, null, 2) }}</code></pre>
                    </div>
                  </div>
                </div>
              </div>
            </li>
          </ul>
        </CardContent>
  
        <!-- Bottom Engine & Ingest Protocol Telemetry Bar -->
        <div
          class="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 class="text-muted-foreground flex flex-wrap items-center gap-4">
            <div class="text-foreground flex items-center gap-1.5 font-medium">
              <Activity class="text-success size-3.5" aria-hidden="true" />
              <span>CDC Pipeline:</span>
              <span class="font-mono">{{ isPaused ? '0 evt/s (Paused)' : '1,420 events/sec' }}</span>
            </div>
  
            <Separator orientation="vertical" class="hidden h-3.5 sm:block" />
  
            <div class="flex items-center gap-1.5">
              <Layers class="size-3.5" aria-hidden="true" />
              <span>Sink Topic:</span>
              <span class="text-foreground font-mono">snowflake.cdc.raw_events</span>
            </div>
  
            <Separator orientation="vertical" class="hidden h-3.5 sm:block" />
  
            <div class="flex items-center gap-1.5">
              <Server class="text-info size-3.5" aria-hidden="true" />
              <span>Format:</span>
              <span class="text-foreground font-mono">JSON + Schema Registry (v2)</span>
            </div>
          </div>
  
          <div class="text-muted-foreground flex items-center gap-2 font-mono">
            <span class="bg-success size-1.5 rounded-full" />
            <span>Postgres WAL2JSON · TLS 1.3 · Heartbeat: 1,000ms OK</span>
          </div>
        </div>
      </Card>
    </div>
  </template>
  

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