Ring buffer slot 3 now stores holderCount snapshots instead of tax deltas. Tax tracking simplified to a totalTaxPaid counter on the stats record. Removed unbounded ethReserveHistory and feeHistory tables; 7d ETH reserve growth is now computed from the ring buffer. LiveStats renders inline SVG sparklines for ETH reserve, supply, and holders with holder growth %. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
523 lines
17 KiB
Vue
523 lines
17 KiB
Vue
<template>
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<div v-if="!error && stats" class="live-stats">
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<div class="stats-grid" :class="{ 'has-floor': showFloorPrice }">
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<div class="stat-item">
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<div class="stat-label">ETH Reserve</div>
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<div class="stat-value">{{ ethReserveAmount }}</div>
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<div v-if="growthIndicator !== null" class="growth-badge" :class="growthClass">{{ growthIndicator }}</div>
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<svg v-if="ethReserveSpark.length > 1" class="sparkline" viewBox="0 0 80 24" preserveAspectRatio="none">
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<polyline :points="toSvgPoints(ethReserveSpark)" fill="none" stroke="rgba(96,165,250,0.5)" stroke-width="1.5" stroke-linejoin="round" stroke-linecap="round" />
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</svg>
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</div>
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<div class="stat-item">
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<div class="stat-label">ETH / Token</div>
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<div class="stat-value">{{ ethPerToken }}</div>
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</div>
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<div v-if="showFloorPrice" class="stat-item">
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<div class="stat-label">Floor Price</div>
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<div class="stat-value">{{ floorPriceAmount }}</div>
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<div v-if="floorDistanceText" class="floor-distance">{{ floorDistanceText }}</div>
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</div>
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<div class="stat-item">
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<div class="stat-label">Supply (7d)</div>
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<div class="stat-value">{{ totalSupply }}</div>
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<div v-if="netSupplyIndicator !== null" class="growth-badge" :class="netSupplyClass">{{ netSupplyIndicator }}</div>
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<svg v-if="supplySpark.length > 1" class="sparkline" viewBox="0 0 80 24" preserveAspectRatio="none">
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<polyline :points="toSvgPoints(supplySpark)" fill="none" stroke="rgba(74,222,128,0.5)" stroke-width="1.5" stroke-linejoin="round" stroke-linecap="round" />
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</svg>
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</div>
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<div class="stat-item">
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<div class="stat-label">Holders</div>
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<div class="stat-value">{{ holders }}</div>
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<div v-if="holderGrowthIndicator !== null" class="growth-badge" :class="holderGrowthClass">{{ holderGrowthIndicator }}</div>
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<svg v-if="holdersSpark.length > 1" class="sparkline" viewBox="0 0 80 24" preserveAspectRatio="none">
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<polyline :points="toSvgPoints(holdersSpark)" fill="none" stroke="rgba(251,191,36,0.5)" stroke-width="1.5" stroke-linejoin="round" stroke-linecap="round" />
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</svg>
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</div>
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<div class="stat-item" :class="{ 'pulse': isRecentRebalance }">
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<div class="stat-label">Rebalances</div>
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<div class="stat-value">{{ rebalanceCount }}</div>
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<div class="growth-badge growth-flat">{{ lastRebalance }}</div>
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</div>
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</div>
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</div>
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<div v-else-if="!error && !stats" class="live-stats">
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<div class="stats-grid">
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<div class="stat-item skeleton" v-for="i in 6" :key="i">
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<div class="stat-label skeleton-text"></div>
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<div class="stat-value skeleton-text"></div>
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</div>
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</div>
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</div>
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</template>
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<script setup lang="ts">
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import { ref, computed, onMounted, onUnmounted } from 'vue';
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const RING_SEGMENTS = 4; // ethReserve, minted, burned, holderCount
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const RING_HOURS = 168; // 7 days * 24 hours
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interface Stats {
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kraikenTotalSupply: string;
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holderCount: number;
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lastRecenterTimestamp: number;
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recentersLastWeek: number;
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lastEthReserve: string;
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mintedLastWeek: string;
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burnedLastWeek: string;
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netSupplyChangeWeek: string;
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ethReserveGrowthBps: number | null;
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feesEarned7dEth: string | null;
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floorPriceWei: string | null;
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floorDistanceBps: number | null;
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currentPriceWei: string | null;
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ringBuffer: string[] | null;
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ringBufferPointer: number | null;
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}
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const stats = ref<Stats | null>(null);
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const error = ref(false);
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let refreshInterval: number | null = null;
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// Helper: safely convert a Wei BigInt string to ETH float
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function weiToEth(wei: string | null | undefined): number {
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if (!wei || wei === '0') return 0;
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try {
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return Number(BigInt(wei)) / 1e18;
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} catch {
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return 0;
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}
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}
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/**
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* Extract a time-ordered series from the ring buffer for a given slot offset.
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* Skips leading zeros (pre-launch padding).
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*/
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function extractSeries(ringBuffer: string[], pointer: number, slotOffset: number): number[] {
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const raw: number[] = [];
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for (let i = 0; i < RING_HOURS; i++) {
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// Walk from oldest to newest
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const idx = ((pointer + 1 + i) % RING_HOURS) * RING_SEGMENTS + slotOffset;
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raw.push(Number(ringBuffer[idx] || '0'));
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}
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// Skip leading zeros
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const firstNonZero = raw.findIndex(v => v > 0);
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return firstNonZero === -1 ? [] : raw.slice(firstNonZero);
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}
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/**
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* Build cumulative net supply series from minted (slot 1) and burned (slot 2).
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*/
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function extractSupplySeries(ringBuffer: string[], pointer: number): number[] {
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const minted: number[] = [];
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const burned: number[] = [];
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for (let i = 0; i < RING_HOURS; i++) {
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const idx = ((pointer + 1 + i) % RING_HOURS) * RING_SEGMENTS;
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minted.push(Number(ringBuffer[idx + 1] || '0'));
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burned.push(Number(ringBuffer[idx + 2] || '0'));
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}
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// Build cumulative net supply change
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const cumulative: number[] = [];
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let sum = 0;
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let hasData = false;
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for (let i = 0; i < RING_HOURS; i++) {
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const net = minted[i] - burned[i];
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if (net !== 0) hasData = true;
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sum += net;
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if (hasData) cumulative.push(sum);
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}
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return cumulative;
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}
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/**
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* Convert a number[] series to SVG polyline points string, scaled to 80x24.
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*/
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function toSvgPoints(series: number[]): string {
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if (series.length < 2) return '';
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const min = Math.min(...series);
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const max = Math.max(...series);
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const range = max - min || 1;
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return series
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.map((v, i) => {
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const x = (i / (series.length - 1)) * 80;
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const y = 24 - ((v - min) / range) * 22 - 1; // 1px padding top/bottom
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return `${x.toFixed(1)},${y.toFixed(1)}`;
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})
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.join(' ');
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}
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// Sparkline series extracted from ring buffer
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const ethReserveSpark = computed(() => {
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if (!stats.value?.ringBuffer || stats.value.ringBufferPointer == null) return [];
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return extractSeries(stats.value.ringBuffer, stats.value.ringBufferPointer, 0);
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});
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const supplySpark = computed(() => {
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if (!stats.value?.ringBuffer || stats.value.ringBufferPointer == null) return [];
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return extractSupplySeries(stats.value.ringBuffer, stats.value.ringBufferPointer);
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});
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const holdersSpark = computed(() => {
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if (!stats.value?.ringBuffer || stats.value.ringBufferPointer == null) return [];
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return extractSeries(stats.value.ringBuffer, stats.value.ringBufferPointer, 3);
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});
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// Holder growth indicator from ring buffer
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const holderGrowthIndicator = computed((): string | null => {
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const series = holdersSpark.value;
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if (series.length < 2) return null;
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const oldest = series[0];
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const newest = series[series.length - 1];
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if (oldest === 0) return null;
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const pct = ((newest - oldest) / oldest) * 100;
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if (Math.abs(pct) < 0.1) return '~ flat';
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return pct > 0 ? `↑ ${pct.toFixed(1)}% this week` : `↓ ${Math.abs(pct).toFixed(1)}% this week`;
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});
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const holderGrowthClass = computed(() => {
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const series = holdersSpark.value;
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if (series.length < 2) return '';
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const oldest = series[0];
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const newest = series[series.length - 1];
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if (newest > oldest) return 'growth-up';
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if (newest < oldest) return 'growth-down';
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return 'growth-flat';
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});
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const ethReserveAmount = computed(() => {
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if (!stats.value) return '0.00 ETH';
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const eth = weiToEth(stats.value.lastEthReserve);
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return `${eth.toFixed(2)} ETH`;
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});
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// Growth indicator: null = hide (< 7 days history or missing)
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const growthIndicator = computed((): string | null => {
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if (!stats.value || stats.value.ethReserveGrowthBps == null) return null;
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const bps = Number(stats.value.ethReserveGrowthBps);
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const pct = Math.abs(bps / 100);
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if (bps > 10) return `↑ ${pct.toFixed(1)}%`;
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if (bps < -10) return `↓ ${pct.toFixed(1)}%`;
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return `~ ${pct.toFixed(1)}%`;
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});
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const growthClass = computed(() => {
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if (!stats.value || stats.value.ethReserveGrowthBps == null) return '';
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const bps = Number(stats.value.ethReserveGrowthBps);
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if (bps > 10) return 'growth-up';
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if (bps < -10) return 'growth-down';
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return 'growth-flat';
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});
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// ETH backing per token
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const ethPerToken = computed(() => {
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if (!stats.value) return '—';
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const reserve = weiToEth(stats.value.lastEthReserve);
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const supply = Number(stats.value.kraikenTotalSupply) / 1e18;
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if (supply === 0) return '—';
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const ratio = reserve / supply;
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if (ratio >= 0.01) return `${ratio.toFixed(4)} ETH`;
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if (ratio >= 0.0001) return `${ratio.toFixed(6)} ETH`;
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return `${ratio.toExponential(2)} ETH`;
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});
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// Net supply change indicator (7d)
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const netSupplyIndicator = computed((): string | null => {
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if (!stats.value) return null;
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const minted = Number(BigInt(stats.value.mintedLastWeek || '0'));
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const burned = Number(BigInt(stats.value.burnedLastWeek || '0'));
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const supply = Number(BigInt(stats.value.kraikenTotalSupply || '1'));
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if (supply === 0) return null;
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const netPct = ((minted - burned) / supply) * 100;
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if (Math.abs(netPct) < 0.01) return '~ flat';
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return netPct > 0 ? `↑ ${netPct.toFixed(1)}%` : `↓ ${Math.abs(netPct).toFixed(1)}%`;
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});
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const netSupplyClass = computed(() => {
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if (!stats.value) return '';
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const minted = Number(BigInt(stats.value.mintedLastWeek || '0'));
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const burned = Number(BigInt(stats.value.burnedLastWeek || '0'));
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if (minted > burned * 1.01) return 'growth-up';
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if (burned > minted * 1.01) return 'growth-down';
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return 'growth-flat';
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});
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// Rebalance count (weekly)
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const rebalanceCount = computed(() => {
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if (!stats.value) return '0';
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return `${stats.value.recentersLastWeek} this week`;
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});
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const holders = computed(() => {
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if (!stats.value) return '0 holders';
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return `${stats.value.holderCount} holders`;
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});
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const lastRebalance = computed(() => {
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if (!stats.value) return 'Never';
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const now = Math.floor(Date.now() / 1000);
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const diff = now - stats.value.lastRecenterTimestamp;
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if (diff < 60) return 'Just now';
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if (diff < 3600) return `${Math.floor(diff / 60)} min ago`;
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if (diff < 86400) return `${Math.floor(diff / 3600)} hours ago`;
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return `${Math.floor(diff / 86400)} days ago`;
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});
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const isRecentRebalance = computed(() => {
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if (!stats.value) return false;
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const now = Math.floor(Date.now() / 1000);
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return (now - stats.value.lastRecenterTimestamp) < 3600;
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});
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const totalSupply = computed(() => {
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if (!stats.value) return '0K KRK';
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const supply = Number(stats.value.kraikenTotalSupply) / 1e18;
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if (supply >= 1000000) {
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return `${(supply / 1000000).toFixed(1)}M KRK`;
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}
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return `${(supply / 1000).toFixed(1)}K KRK`;
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});
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// Floor price: only show when data is available
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const showFloorPrice = computed(() => {
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return !!(stats.value?.floorPriceWei && stats.value.floorPriceWei !== '0');
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});
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const floorPriceAmount = computed(() => {
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if (!showFloorPrice.value || !stats.value?.floorPriceWei) return null;
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const eth = weiToEth(stats.value.floorPriceWei);
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return `${eth.toFixed(4)} ETH`;
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});
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const floorDistanceText = computed((): string | null => {
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if (!stats.value || stats.value.floorDistanceBps == null) return null;
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const distPct = Number(stats.value.floorDistanceBps) / 100;
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const aboveBelow = distPct >= 0 ? 'above' : 'below';
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return `(${Math.abs(distPct).toFixed(0)}% ${aboveBelow})`;
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});
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async function fetchStats() {
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try {
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const endpoint = `${window.location.origin}/api/graphql`;
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const response = await fetch(endpoint, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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query: `
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query ProtocolStats {
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statss(where: { id: "0x01" }) {
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items {
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kraikenTotalSupply
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holderCount
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lastRecenterTimestamp
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recentersLastWeek
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lastEthReserve
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mintedLastWeek
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burnedLastWeek
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netSupplyChangeWeek
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ethReserveGrowthBps
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feesEarned7dEth
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floorPriceWei
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floorDistanceBps
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currentPriceWei
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ringBuffer
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ringBufferPointer
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}
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}
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}
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`,
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}),
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});
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if (!response.ok) {
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throw new Error('Failed to fetch stats');
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}
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const data = await response.json();
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if (data.data?.statss?.items?.[0]) {
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const s = data.data.statss.items[0];
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// If ETH reserve is 0 from Ponder (EthScarcity/EthAbundance events never emitted),
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// read WETH balance of the Uniswap V3 pool directly via RPC
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if (s.lastEthReserve === '0' || !s.lastEthReserve) {
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try {
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const rpc = `${window.location.origin}/api/rpc`;
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const deployResp = await fetch(`${window.location.origin}/app/deployments-local.json`);
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if (deployResp.ok) {
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const deployments = await deployResp.json();
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const krkAddr = deployments.contracts?.Kraiken;
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if (krkAddr) {
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const wethAddr = '0x4200000000000000000000000000000000000006';
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const factoryAddr = '0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24';
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const fee = 10000; // 1% fee tier
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// Step 1: factory.getPool(weth, kraiken, fee) → pool address
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// selector: 0x1698ee82
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const wethPad = wethAddr.slice(2).padStart(64, '0');
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const krkPad = krkAddr.slice(2).padStart(64, '0');
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const feePad = fee.toString(16).padStart(64, '0');
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const poolRes = await fetch(rpc, { method: 'POST', headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'eth_call',
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params: [{ to: factoryAddr, data: '0x1698ee82' + wethPad + krkPad + feePad }, 'latest'] }) });
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const poolJson = await poolRes.json();
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const poolAddr = '0x' + (poolJson.result || '').slice(26);
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if (poolAddr.length === 42 && poolAddr !== '0x' + '0'.repeat(40)) {
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// Step 2: weth.balanceOf(pool) → ETH reserve in pool
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const poolPad = poolAddr.slice(2).padStart(64, '0');
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const balRes = await fetch(rpc, { method: 'POST', headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ jsonrpc: '2.0', id: 2, method: 'eth_call',
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params: [{ to: wethAddr, data: '0x70a08231' + poolPad }, 'latest'] }) });
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const balJson = await balRes.json();
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const wethBal = BigInt(balJson.result || '0x0');
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if (wethBal > 0n) {
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s.lastEthReserve = wethBal.toString();
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}
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}
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}
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}
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} catch { /* ignore RPC fallback errors */ }
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}
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stats.value = s;
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error.value = false;
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} else {
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throw new Error('No stats data');
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}
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} catch (err) {
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// eslint-disable-next-line no-console
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console.error('Failed to fetch protocol stats:', err);
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error.value = true;
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}
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}
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onMounted(() => {
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fetchStats();
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refreshInterval = window.setInterval(fetchStats, 30000); // Refresh every 30 seconds
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});
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onUnmounted(() => {
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if (refreshInterval) {
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clearInterval(refreshInterval);
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}
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});
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</script>
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<style scoped lang="sass">
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.live-stats
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width: 100%
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padding: 40px 0
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margin-top: 60px
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.stats-grid
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display: grid
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grid-template-columns: 1fr
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gap: 24px
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max-width: 840px
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margin: 0 auto
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padding: 0 32px
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&.has-floor
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max-width: 1020px
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@media (min-width: 640px)
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grid-template-columns: repeat(2, 1fr)
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@media (min-width: 992px)
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grid-template-columns: repeat(3, 1fr)
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gap: 32px
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&.has-floor
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grid-template-columns: repeat(3, 1fr)
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.stat-item
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display: flex
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flex-direction: column
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align-items: center
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gap: 6px
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padding: 20px
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background: rgba(255, 255, 255, 0.03)
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border: 1px solid rgba(255, 255, 255, 0.08)
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border-radius: 12px
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transition: all 0.3s ease
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&:hover
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background: rgba(255, 255, 255, 0.05)
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border-color: rgba(255, 255, 255, 0.12)
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.sparkline
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width: 80px
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height: 24px
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margin-top: 4px
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opacity: 0.8
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.stat-label
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font-size: 12px
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color: rgba(240, 240, 240, 0.6)
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text-transform: uppercase
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letter-spacing: 0.5px
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font-weight: 500
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.stat-value
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font-size: 20px
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color: #F0F0F0
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font-weight: 600
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font-family: 'orbitron', sans-serif
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@media (min-width: 992px)
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font-size: 24px
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.growth-badge
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font-size: 11px
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font-weight: 600
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letter-spacing: 0.5px
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&.growth-up
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color: #4ade80
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&.growth-down
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color: #f87171
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&.growth-flat
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color: rgba(240, 240, 240, 0.45)
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.floor-distance
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font-size: 11px
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color: rgba(240, 240, 240, 0.5)
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letter-spacing: 0.3px
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.pulse
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animation: pulse-glow 2s ease-in-out infinite
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@keyframes pulse-glow
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0%, 100%
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background: rgba(117, 80, 174, 0.1)
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border-color: rgba(117, 80, 174, 0.3)
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50%
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background: rgba(117, 80, 174, 0.2)
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border-color: rgba(117, 80, 174, 0.5)
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.skeleton
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pointer-events: none
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.skeleton-text
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background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 25%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0.05) 75%)
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background-size: 200% 100%
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animation: shimmer 1.5s infinite
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border-radius: 4px
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&.stat-label
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height: 12px
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width: 80px
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&.stat-value
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height: 24px
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width: 100px
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@keyframes shimmer
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|
0%
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background-position: 200% 0
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|
100%
|
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background-position: -200% 0
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</style>
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