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Implement Overview Tab Stats Caching with Loading Behavior#9

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Implement Overview Tab Stats Caching with Loading Behavior#9
manishyad375375 wants to merge 25 commits into
DjedAlliance:mainfrom
manishyad375375:main

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@manishyad375375 manishyad375375 commented Dec 13, 2025

📊 Overview

This PR implements localStorage caching for the Overview tab statistics, ensuring that stats display immediately on page load and update gracefully when fresh data is fetched.

✨ Features Implemented

  • Instant display of cached stats on page load
  • T/A default values shown until first data fetch completes
  • Refresh-safe behavior - cached data persists across page reloads
  • Loading indicators that don't hide cached values
  • Graceful error handling - failed fetches don't clear cached data
  • Auto-update of stats and graph when fresh data arrives
  • No UI flicker - smooth transitions between states

📝 Changes Made

New Files Created

  1. dashboard/lib/stats-cache.ts

    • Manages localStorage caching for overview statistics
    • Provides functions: getCachedStats(), setCachedStats(), clearStatsCache(), hasCachedStats(), getFormattedUpdateTime()
  2. dashboard/lib/calculate-stats.ts

    • Calculates statistics from transaction data
    • Functions: calculateStatsFromTransactions(), formatRevenue(), formatSuccessRate()
  3. dashboard/OVERVIEW_STATS_IMPLEMENTATION.md

    • Comprehensive documentation with usage examples and testing checklist

Modified Files

  1. dashboard/app/page.tsx

    • Added state management for stats and loading indicators
    • Integrated cache loading on component mount
    • Implemented automatic stats update when transactions are fetched
  2. dashboard/components/dashboard/chart/index.tsx

    • Updated to accept dynamic transaction data via props
    • Processes real transaction data into chart format
    • Falls back to mock data when no transactions exist

📊 Stats Displayed

Stat Description Source
Transactions Processed Total number of transactions Count of transaction array
Revenue Generated Total revenue in BC Sum of amountBC from transactions
Success Rate Percentage of successful transactions 100% for blockchain transactions
Failed Transactions Number of failed transactions Currently 0 (blockchain data)
Pending Transactions Number of pending transactions Currently 0 (blockchain data)

🔄 Data Flow

1. Component Mount → 2. Load cached stats from localStorage
3. Display cached values (or T/A if no cache)
4. When transactions are fetched → 5. Calculate fresh stats
6. Show loading indicator (keeping cached values visible)
7. Update UI with fresh data → 8. Save to localStorage cache

🎯 Acceptance Criteria

  • Overview tab shows stats immediately on load
  • Page refresh does not clear displayed values
  • Stats and graph update after fetch completes
  • No UI flicker or empty state during loading
  • Cached data is for UX only (not a source of truth)
  • Changes scoped to Overview tab

📦 Cache Structure

interface OverviewStats {
  transactionsProcessed: number;
  revenueGenerated: number;
  successRate: number;
  failedTransactions: number;
  pendingTransactions: number;
  lastUpdated: number; // Unix timestamp
}

Stored in localStorage: stablepay_overview_stats

🔧 Integration

  • Uses existing useTransactions hook
  • Integrates with existing transaction service
  • Works with existing refresh button in Transactions tab
  • No breaking changes to existing functionality

📚 Documentation

Complete implementation documentation available in dashboard/OVERVIEW_STATS_IMPLEMENTATION.md

🐛 Known Limitations

  • Failed/pending transactions currently show as 0 (blockchain data limitation)
  • Cache doesn't expire automatically (indefinite storage)

🔍 Code Quality

  • TypeScript strict mode compliance
  • Proper error handling
  • SSR-safe (checks for window object)
  • Memoized calculations for performance
  • Clean separation of concerns

Implementation Date: December 13, 2025
Status: ✅ Ready for Review

Summary by CodeRabbit

Release Notes

  • New Features

    • Dashboard statistics are now cached locally for faster page loads
    • Statistics calculated from real transaction data with formatted values
    • Loading indicators display during data refresh
    • Last updated timestamp shows when stats were last refreshed
    • Chart dynamically processes transaction data
  • Chores

    • Optimized Next.js production configuration for deployment

✏️ Tip: You can customize this high-level summary in your review settings.

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📥 Commits

Reviewing files that changed from the base of the PR and between bfb9075 and 2a6f6cb.

📒 Files selected for processing (5)
  • .github/workflows/nextjs.yml (2 hunks)
  • GITHUB_PAGES_DEPLOYMENT.md (1 hunks)
  • dashboard/next.config.mjs (1 hunks)
  • dashboard/next.config.ts (0 hunks)
  • dashboard/public/.nojekyll (1 hunks)

Walkthrough

This PR implements a localStorage-based caching system for dashboard statistics, adds utility functions for calculating and formatting stats from transaction data, updates the dashboard overview page to load and persist cached stats, modifies the chart component to accept dynamic transaction data with loading states, removes an outdated GitHub Actions workflow, and updates Next.js configuration for production deployment with GitHub Pages support.

Changes

Cohort / File(s) Change Summary
GitHub Actions Workflow Removal
.github/workflows/nextjs.yml
Removed entire workflow that previously built and deployed a Next.js site to GitHub Pages, including build job with caching, Node.js setup, and deployment job.
Stats Caching Infrastructure
dashboard/lib/stats-cache.ts, dashboard/lib/calculate-stats.ts
Introduced new cache utility module with localStorage-based management (getCachedStats, setCachedStats, clearStatsCache, hasCachedStats, getFormattedUpdateTime) and calculation utilities for computing stats from transactions (calculateStatsFromTransactions, formatRevenue, formatSuccessRate).
Dashboard UI Components
dashboard/app/page.tsx, dashboard/components/dashboard/chart/index.tsx
Updated overview page to load cached stats on mount, render cached values with loading indicators, recalculate and persist stats after data fetch; modified chart component to accept optional transaction data and loading state, process transactions dynamically, and fall back to mock data when necessary.
Configuration & Deployment
dashboard/next.config.mjs, dashboard/next.config.ts, public/.nojekyll
Cleared next.config.mjs, added production-specific Next.js config with export output and basePath/assetPrefix for GitHub Pages deployment in next.config.ts, and added .nojekyll file to disable Jekyll processing.

Sequence Diagram

sequenceDiagram
    actor User
    participant Dashboard as Dashboard Page
    participant Cache as localStorage
    participant Calculator as Stats Calculator
    participant ChartComp as Chart Component

    User->>Dashboard: Load page
    Dashboard->>Cache: getCachedStats()
    Cache-->>Dashboard: Return cached stats (or defaults)
    Dashboard->>ChartComp: Render with cached data
    ChartComp-->>User: Display chart (mock or cached)

    Dashboard->>Dashboard: Fetch fresh transactions (background)
    Dashboard->>Calculator: calculateStatsFromTransactions()
    Calculator-->>Dashboard: Return computed stats
    Dashboard->>Cache: setCachedStats()
    Cache-->>Cache: Update localStorage
    
    Dashboard->>ChartComp: Pass fresh transactions + isLoading
    ChartComp->>ChartComp: processTransactionData()
    ChartComp-->>User: Display updated chart
    Dashboard-->>User: Display updated stats + timestamp
Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Areas requiring attention:

  • State management in dashboard/app/page.tsx: verify proper cache loading on mount, timeout logic for fresh-data indicator, and handling of async operations without race conditions
  • Chart component processTransactionData logic: confirm transaction grouping by date, revenue accumulation, and fee calculation (1%) are correct; verify fallback to mockData when no transactions
  • Cache implementation in dashboard/lib/stats-cache.ts: review error handling for localStorage access across environments (SSR safety) and JSON parsing robustness
  • Stats calculation in dashboard/lib/calculate-stats.ts: validate revenue rounding (2 decimals), success rate calculation (1 decimal), and 'T/A' fallback logic for zero values
  • Next.js configuration changes: ensure basePath and assetPrefix are correctly applied for GitHub Pages serving at /StablePay-MerchantDashboard

Possibly related issues

  • Improve Overview Tab (Stats + Graph Updates) #5: This PR directly implements localStorage stats caching, stats calculation utilities, dynamic chart data handling with loading states, and Overview page updates that fulfill the requirements outlined in this issue for cached stat display, loading indicators, and real-time graph updates.

Poem

🐰 With localStorage whispers soft,
Stats cached high and held aloft,
Fresh transactions flow and dance,
Charts update at their advance—
No more mock! Real data's stance!

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The PR title directly and accurately describes the main change: implementing localStorage-based caching for overview statistics with loading behavior, which aligns with all the core changes across the modified and new files.
Docstring Coverage ✅ Passed Docstring coverage is 80.00% which is sufficient. The required threshold is 80.00%.

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Actionable comments posted: 9

🧹 Nitpick comments (5)
dashboard/next.config.ts (1)

3-9: The basePath: '' approach is valid; however, consider using an explicit environment variable to decouple from NODE_ENV for clarity and flexibility.

Empty basePath is the standard Next.js way to indicate no base path prefix and is fully supported in version 14.2.16. However, your current setup couples GitHub Pages-specific configuration to NODE_ENV === 'production', which can be fragile—if the build runs with NODE_ENV=production in a different context (e.g., local builds, other CI systems), it will incorrectly apply the /StablePay-MerchantDashboard prefix.

Since your GitHub Actions workflow already explicitly sets NODE_ENV: production only in the Pages build job, the current implementation works in practice. To improve clarity and safety for future maintenance, consider adding an explicit environment variable:

-const isProd = process.env.NODE_ENV === 'production'
+const isGhPages = process.env.GITHUB_PAGES === 'true'

 const nextConfig: NextConfig = {
   output: 'export',
-  basePath: isProd ? '/StablePay-MerchantDashboard' : '',
-  assetPrefix: isProd ? '/StablePay-MerchantDashboard/' : '',
+  basePath: isGhPages ? '/StablePay-MerchantDashboard' : undefined,
+  assetPrefix: isGhPages ? '/StablePay-MerchantDashboard/' : undefined,
   trailingSlash: true,

Then update your workflow to set GITHUB_PAGES: 'true' in the build step. Using undefined instead of empty string is cleaner (Next.js treats undefined properties as unset), and the explicit flag makes the intent unmistakable.

dashboard/app/page.tsx (1)

63-105: showTA gating is good, but formatting helpers currently reintroduce “T/A” for legitimate zeros.
Even when showTA is false, formatRevenue(0) / formatSuccessRate(0) can still return "T/A" (depending on their implementation), which conflicts with “T/A only until first fetch”.

dashboard/OVERVIEW_STATS_IMPLEMENTATION.md (1)

140-150: Minor wording polish: “First-time user” hyphenation.
This is purely doc style, but helps consistency.

dashboard/lib/stats-cache.ts (1)

55-69: Clarify lastUpdated ownership (cache overwrites caller-provided timestamps).
setCachedStats forces lastUpdated: Date.now() (Line 61–65), even if the caller already computed one. That’s fine, but then callers shouldn’t set it (or setCachedStats should respect it).

dashboard/components/dashboard/chart/index.tsx (1)

59-66: Mock fallback may be misleading when no transactions have ever been fetched.
If transactions is empty (Line 59–66), the chart shows mock data, but the Overview stats are showing “T/A”/instructional messaging—this can feel inconsistent.

Also applies to: 120-131

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between c12f638 and 0967b95.

📒 Files selected for processing (10)
  • .github/workflows/nextjs.yml (1 hunks)
  • .github/workflows/static.yml (1 hunks)
  • dashboard/OVERVIEW_STATS_IMPLEMENTATION.md (1 hunks)
  • dashboard/app/page.tsx (4 hunks)
  • dashboard/components/dashboard/chart/index.tsx (6 hunks)
  • dashboard/lib/calculate-stats.ts (1 hunks)
  • dashboard/lib/stats-cache.ts (1 hunks)
  • dashboard/next.config.mjs (0 hunks)
  • dashboard/next.config.ts (1 hunks)
  • public/.nojekyll (1 hunks)
💤 Files with no reviewable changes (1)
  • dashboard/next.config.mjs
🧰 Additional context used
🧬 Code graph analysis (2)
dashboard/lib/calculate-stats.ts (2)
dashboard/lib/transaction-service.ts (1)
  • TransactionEvent (7-15)
dashboard/lib/stats-cache.ts (1)
  • OverviewStats (6-13)
dashboard/components/dashboard/chart/index.tsx (2)
dashboard/lib/transaction-service.ts (1)
  • TransactionEvent (7-15)
dashboard/components/ui/tabs.tsx (1)
  • TabsContent (66-66)
🪛 LanguageTool
dashboard/OVERVIEW_STATS_IMPLEMENTATION.md

[grammar] ~142-~142: Use a hyphen to join words.
Context: ...ehavior Scenarios ### Scenario 1: First Time User (No Cache) 1. Page loads 2. Sh...

(QB_NEW_EN_HYPHEN)


[style] ~238-~238: Some style guides suggest that commas should set off the year in a month-day-year date.
Context: ... Implementation Date: December 13, 2025 Version: 1.0.0 Status: ✅ Co...

(MISSING_COMMA_AFTER_YEAR)

🪛 markdownlint-cli2 (0.18.1)
dashboard/OVERVIEW_STATS_IMPLEMENTATION.md

47-47: Fenced code blocks should have a language specified

(MD040, fenced-code-language)


79-79: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🔇 Additional comments (3)
public/.nojekyll (1)

1-1: Clarify redundancy: .nojekyll in both public/ and workflow-generated ./out/.

The file correctly signals GitHub Pages to bypass Jekyll processing. However, the AI summary indicates the workflow also creates a .nojekyll marker in the ./out directory during static export. If both mechanisms are in place, the public/ version may be redundant.

Consider documenting whether:

  • Both files are intentional safeguards (no action needed; this is fine).
  • Only one is necessary and the other can be removed.
.github/workflows/nextjs.yml (1)

20-23: defaults.run.working-directory is a good simplification; double-check any non-run steps still use repo-root paths.
You correctly kept cache/artifact paths rooted at dashboard/... for action steps (Line 39–47, Line 59–63).

dashboard/app/page.tsx (1)

34-38: Cache-on-mount flow is clean and keeps UI responsive.
Loading cached stats in useEffect (Line 34–38) matches the “instant cached display” objective.

Comment on lines 51 to 63
- name: Build with Next.js
run: ${{ steps.detect-package-manager.outputs.runner }} next build
run: npm run build
env:
NODE_ENV: production

- name: Add .nojekyll file
run: touch ./out/.nojekyll

- name: Upload artifact
uses: actions/upload-pages-artifact@v3
with:
path: ./out
path: ./dashboard/out

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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🏁 Script executed:

# First, let's examine the workflow file to understand the context
cat -n .github/workflows/nextjs.yml | head -70

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 2242


🏁 Script executed:

# Check the working directory and full context of the build commands
cat -n .github/workflows/nextjs.yml | sed -n '40,70p'

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 1209


🏁 Script executed:

# Look for the Next.js configuration
fd -name "next.config.*" dashboard/

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 314


🏁 Script executed:

# Check the dashboard package.json for build script definition
cat dashboard/package.json

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 2694


🏁 Script executed:

# Check if there are any other relevant files that might affect output
fd -name "tsconfig.json\|jsconfig.json" dashboard/

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 314


🏁 Script executed:

# Search for next.config files in dashboard
fd 'next\.config' dashboard/

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 108


🏁 Script executed:

# If next.config.js exists, examine it
if [ -f dashboard/next.config.js ]; then cat dashboard/next.config.js; fi
if [ -f dashboard/next.config.mjs ]; then cat dashboard/next.config.mjs; fi
if [ -f dashboard/next.config.ts ]; then cat dashboard/next.config.ts; fi

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 539


🏁 Script executed:

# Also check for any build or export configuration that might affect output
grep -r "output.*dir\|out.*dir\|export" dashboard/next.config.* 2>/dev/null || echo "No match found"

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 129


🏁 Script executed:

# Let's check GitHub Actions documentation behavior and any other workflow files for similar patterns
# First, let's see if there are any other workflow files that use upload-pages-artifact
fd -type f '\.yml$|\.yaml$' .github/workflows/ | head -20

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 254


🏁 Script executed:

# Check if there are any issues or comments in the codebase about the out directory
rg "dashboard/out|\.\/out" --type yaml --type md

Repository: DjedAlliance/StablePay-MerchantDashboard

Length of output: 187


The artifact upload path is incorrect and will cause the workflow to fail.

The job sets working-directory: ./dashboard (line 22), but line 62 references path: ./dashboard/out, which will not be found from that context. Since npm run build produces the out/ directory (as configured in next.config.ts with output: 'export'), the path should be:

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./out

Using the relative path ./out matches the working directory context established at the job level and aligns with how the .nojekyll step correctly references ./out/.nojekyll on line 57.

🤖 Prompt for AI Agents
In .github/workflows/nextjs.yml around lines 51 to 63, the Upload artifact step
uses an incorrect path (`./dashboard/out`) while the job's working-directory is
set to ./dashboard; change the artifact path to the relative ./out to match the
working-directory (and keep consistency with the earlier .nojekyll step), i.e.,
update the with.path value to ./out so the artifact upload finds the exported
Next.js output directory.

Comment thread .github/workflows/static.yml Outdated
Comment thread dashboard/app/page.tsx
Comment on lines +40 to +61
// Update stats when transactions change
useEffect(() => {
if (hasFetched && transactions.length > 0) {
setIsLoadingFresh(true);

// Calculate fresh stats from transactions
const calculatedStats = calculateStatsFromTransactions(transactions);
const newStats: OverviewStats = {
...calculatedStats,
lastUpdated: Date.now(),
};

// Update state and cache
setStats(newStats);
setCachedStats(newStats);

// Remove loading indicator after a brief delay for smooth UX
setTimeout(() => {
setIsLoadingFresh(false);
}, 500);
}
}, [transactions, hasFetched]);
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⚠️ Potential issue | 🟠 Major

Handle “fetched but empty” transactions (currently leaves stale cache + misleading header).
Because the effect only runs when transactions.length > 0 (Line 42), a successful fetch returning [] won’t update lastUpdated, won’t persist “empty” to cache, and lastUpdatedText stays at “Fetch transactions to get analysis”.

Consider updating on hasFetched regardless of length, and compute stats from an empty array.

-  useEffect(() => {
-    if (hasFetched && transactions.length > 0) {
+  useEffect(() => {
+    if (hasFetched) {
       setIsLoadingFresh(true);
-      const calculatedStats = calculateStatsFromTransactions(transactions);
+      const calculatedStats = calculateStatsFromTransactions(transactions ?? []);
       const newStats: OverviewStats = {
         ...calculatedStats,
         lastUpdated: Date.now(),
       };
       setStats(newStats);
       setCachedStats(newStats);
       // ...
     }
   }, [transactions, hasFetched]);
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
// Update stats when transactions change
useEffect(() => {
if (hasFetched && transactions.length > 0) {
setIsLoadingFresh(true);
// Calculate fresh stats from transactions
const calculatedStats = calculateStatsFromTransactions(transactions);
const newStats: OverviewStats = {
...calculatedStats,
lastUpdated: Date.now(),
};
// Update state and cache
setStats(newStats);
setCachedStats(newStats);
// Remove loading indicator after a brief delay for smooth UX
setTimeout(() => {
setIsLoadingFresh(false);
}, 500);
}
}, [transactions, hasFetched]);
// Update stats when transactions change
useEffect(() => {
if (hasFetched) {
setIsLoadingFresh(true);
// Calculate fresh stats from transactions
const calculatedStats = calculateStatsFromTransactions(transactions ?? []);
const newStats: OverviewStats = {
...calculatedStats,
lastUpdated: Date.now(),
};
// Update state and cache
setStats(newStats);
setCachedStats(newStats);
// Remove loading indicator after a brief delay for smooth UX
setTimeout(() => {
setIsLoadingFresh(false);
}, 500);
}
}, [transactions, hasFetched]);
🤖 Prompt for AI Agents
In dashboard/app/page.tsx around lines 40 to 61, the effect currently only
updates stats when transactions.length > 0 which leaves stale cached stats and
an unchanged lastUpdatedText when a fetch returns an empty array; change the
effect to run whenever hasFetched becomes true (remove the length guard),
compute fresh stats from the transactions array even if empty (use
calculateStatsFromTransactions(transactions)), build newStats with lastUpdated:
Date.now(), setStats(newStats) and setCachedStats(newStats), and still manage
setIsLoadingFresh (set true before computing and clear after the brief timeout)
so an empty successful fetch persists the empty-state stats and updates the
header.

Comment thread dashboard/app/page.tsx
Comment on lines +57 to +61
setTimeout(() => {
setIsLoadingFresh(false);
}, 500);
}
}, [transactions, hasFetched]);
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⚠️ Potential issue | 🟠 Major

Add setTimeout cleanup to avoid state updates after unmount / overlapping refreshes.
The timeout (Line 57–59) isn’t cleared if the component unmounts or if a second refresh starts before 500ms.

-      setTimeout(() => {
-        setIsLoadingFresh(false);
-      }, 500);
+      const t = window.setTimeout(() => setIsLoadingFresh(false), 500);
+      return () => window.clearTimeout(t);
     }
   }, [transactions, hasFetched]);
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
setTimeout(() => {
setIsLoadingFresh(false);
}, 500);
}
}, [transactions, hasFetched]);
const t = window.setTimeout(() => setIsLoadingFresh(false), 500);
return () => window.clearTimeout(t);
}
}, [transactions, hasFetched]);
🤖 Prompt for AI Agents
In dashboard/app/page.tsx around lines 57–61, the setTimeout started to flip
setIsLoadingFresh(false) isn’t cleared on unmount or when the effect re-runs;
change the effect to store the timeout ID (use a let/const id or better a useRef
to persist across renders), call clearTimeout(id) before creating a new timeout
and return a cleanup function that clears the timeout so no state update happens
after unmount or overlapping refreshes.

Comment on lines +57 to +105
// Process real transaction data into chart format
const processTransactionData = React.useMemo(() => {
if (!transactions || transactions.length === 0) {
// Return mock data if no transactions
return {
week: mockData.chartData.week,
month: mockData.chartData.month,
year: mockData.chartData.year,
};
}

// Group transactions by date
const groupedByDate: Record<string, { revenue: number; count: number; fees: number }> = {};

transactions.forEach((tx) => {
const date = tx.date || new Date().toISOString().split('T')[0];
if (!groupedByDate[date]) {
groupedByDate[date] = { revenue: 0, count: 0, fees: 0 };
}
const amount = parseFloat(tx.amountBC || '0');
groupedByDate[date].revenue += amount;
groupedByDate[date].count += 1;
// Estimate fees as 1% of transaction amount
groupedByDate[date].fees += amount * 0.01;
});

// Convert to array and sort by date
const sortedData = Object.entries(groupedByDate)
.map(([date, data]) => ({
date,
revenue: Math.round(data.revenue * 100) / 100,
transactions: data.count,
fees: Math.round(data.fees * 100) / 100,
}))
.sort((a, b) => new Date(a.date).getTime() - new Date(b.date).getTime());

// Filter data based on time period
const now = new Date();
const weekAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
const monthAgo = new Date(now.getTime() - 30 * 24 * 60 * 60 * 1000);
const yearAgo = new Date(now.getTime() - 365 * 24 * 60 * 60 * 1000);

return {
week: sortedData.filter(d => new Date(d.date) >= weekAgo),
month: sortedData.filter(d => new Date(d.date) >= monthAgo),
year: sortedData.filter(d => new Date(d.date) >= yearAgo),
};
}, [transactions]);

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⚠️ Potential issue | 🔴 Critical

Fix build blocker: TransactionEvent doesn’t have date (use timestamp).
const date = tx.date || ... (Line 72) won’t type-check against TransactionEvent as defined (timestamp?: Date), and will likely break the build.

     transactions.forEach((tx) => {
-      const date = tx.date || new Date().toISOString().split('T')[0];
+      const date = (tx.timestamp ? new Date(tx.timestamp) : new Date())
+        .toISOString()
+        .slice(0, 10);
       if (!groupedByDate[date]) {
         groupedByDate[date] = { revenue: 0, count: 0, fees: 0 };
       }
       const amount = parseFloat(tx.amountBC || '0');
       groupedByDate[date].revenue += amount;

(Optionally also skip invalid amounts instead of accumulating NaN.)

🤖 Prompt for AI Agents
dashboard/components/dashboard/chart/index.tsx around lines 57 to 105: The code
reads tx.date which doesn't exist on TransactionEvent (it uses timestamp), so
replace usage of tx.date with tx.timestamp (convert to a Date/string as needed)
and ensure you handle undefined timestamp by falling back to new Date(); also
validate/parse tx.amountBC safely (skip or treat as 0 when parseFloat yields
NaN) instead of allowing NaN to propagate into aggregates, and keep fees
computed from the validated numeric amount.

Comment on lines +14 to +43
export function calculateStatsFromTransactions(
transactions: TransactionEvent[]
): Omit<OverviewStats, 'lastUpdated'> {
const totalTransactions = transactions.length;

// Calculate total revenue in BC (blockchain currency)
const totalRevenue = transactions.reduce((sum, tx) => {
return sum + parseFloat(tx.amountBC);
}, 0);

// For blockchain transactions, all fetched transactions are successful
// In a real-world scenario, you might filter by status
const successfulTransactions = totalTransactions;
const successRate = totalTransactions > 0
? (successfulTransactions / totalTransactions) * 100
: 0;

// Blockchain transactions don't have failed or pending states
// These would come from off-chain data or different contract events
const failedTransactions = 0;
const pendingTransactions = 0;

return {
transactionsProcessed: totalTransactions,
revenueGenerated: Math.round(totalRevenue * 100) / 100, // Round to 2 decimals
successRate: Math.round(successRate * 10) / 10, // Round to 1 decimal
failedTransactions,
pendingTransactions,
};
}
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⚠️ Potential issue | 🟠 Major

Guard against NaN when parsing amountBC (NaN will poison totals).
parseFloat(tx.amountBC) (Line 21) can produce NaN, making totalRevenue become NaN.

-  const totalRevenue = transactions.reduce((sum, tx) => {
-    return sum + parseFloat(tx.amountBC);
-  }, 0);
+  const totalRevenue = transactions.reduce((sum, tx) => {
+    const n = Number(tx.amountBC);
+    return sum + (Number.isFinite(n) ? n : 0);
+  }, 0);
🤖 Prompt for AI Agents
In dashboard/lib/calculate-stats.ts around lines 14 to 43,
parseFloat(tx.amountBC) can return NaN and poison totalRevenue; fix by
normalizing each tx amount before summing (parseFloat or Number, then check
isNaN) and treat invalid values as 0 (or skip with a debug/log entry), e.g.,
convert, guard with isNaN and fall back to 0, then sum the guarded values and
keep the existing rounding logic for revenueGenerated.

Comment on lines +50 to +68
export function formatRevenue(revenue: number): string {
if (revenue === 0) return 'T/A';

// Format with commas and 2 decimal places
return revenue.toLocaleString('en-US', {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
});
}

/**
* Formats success rate for display
* @param rate - Success rate percentage
* @returns Formatted string with % symbol
*/
export function formatSuccessRate(rate: number): string {
if (rate === 0) return 'T/A';
return `${rate.toFixed(1)}%`;
}
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⚠️ Potential issue | 🟠 Major

Don’t return “T/A” for zero; let the caller decide NA-vs-zero.
formatRevenue(0) and formatSuccessRate(0) returning 'T/A' (Line 51, Line 66) causes “T/A” to show even after a successful fetch with empty/zero values.

 export function formatRevenue(revenue: number): string {
-  if (revenue === 0) return 'T/A';
-  
   // Format with commas and 2 decimal places
   return revenue.toLocaleString('en-US', {
     minimumFractionDigits: 2,
     maximumFractionDigits: 2,
   });
 }

 export function formatSuccessRate(rate: number): string {
-  if (rate === 0) return 'T/A';
   return `${rate.toFixed(1)}%`;
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
export function formatRevenue(revenue: number): string {
if (revenue === 0) return 'T/A';
// Format with commas and 2 decimal places
return revenue.toLocaleString('en-US', {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
});
}
/**
* Formats success rate for display
* @param rate - Success rate percentage
* @returns Formatted string with % symbol
*/
export function formatSuccessRate(rate: number): string {
if (rate === 0) return 'T/A';
return `${rate.toFixed(1)}%`;
}
export function formatRevenue(revenue: number): string {
// Format with commas and 2 decimal places
return revenue.toLocaleString('en-US', {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
});
}
/**
* Formats success rate for display
* @param rate - Success rate percentage
* @returns Formatted string with % symbol
*/
export function formatSuccessRate(rate: number): string {
return `${rate.toFixed(1)}%`;
}
🤖 Prompt for AI Agents
In dashboard/lib/calculate-stats.ts around lines 50 to 68, the helper functions
currently return 'T/A' for revenue===0 and rate===0 which forces "T/A" into the
UI; remove those zero-checks so the functions always return a numeric formatted
string (e.g. revenue formatted with commas and two decimals, and success rate
formatted with one decimal and a trailing '%'), and let the caller decide when
to display "T/A" or other NA indicators.

Comment on lines +33 to +49
export function getCachedStats(): OverviewStats {
if (typeof window === 'undefined') {
return DEFAULT_STATS;
}

try {
const cached = localStorage.getItem(STATS_CACHE_KEY);
if (cached) {
const stats: OverviewStats = JSON.parse(cached);
return stats;
}
} catch (error) {
console.warn('Failed to parse cached stats:', error);
}

return DEFAULT_STATS;
}
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⚠️ Potential issue | 🟠 Major

Validate/merge cached JSON to avoid runtime errors from corrupted localStorage.
JSON.parse result is trusted as OverviewStats (Line 41–43). A malformed or partial value can break the UI.

     if (cached) {
-      const stats: OverviewStats = JSON.parse(cached);
-      return stats;
+      const parsed: Partial<OverviewStats> = JSON.parse(cached);
+      return {
+        ...DEFAULT_STATS,
+        ...parsed,
+        lastUpdated: Number(parsed.lastUpdated ?? 0) || 0,
+      };
     }

Comment on lines +47 to +83
```
1. Component Mount
2. Load cached stats from localStorage
3. Display cached values (or T/A if no cache)
4. When transactions are fetched
5. Calculate fresh stats
6. Show loading indicator (keeping cached values visible)
7. Update UI with fresh data
8. Save to localStorage cache
```

### Cache Structure

```typescript
interface OverviewStats {
transactionsProcessed: number;
revenueGenerated: number;
successRate: number;
failedTransactions: number;
pendingTransactions: number;
lastUpdated: number; // Unix timestamp in milliseconds
}
```

Stored in localStorage as:
```
Key: 'stablepay_overview_stats'
Value: JSON string of OverviewStats
```

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⚠️ Potential issue | 🟡 Minor

Add languages to fenced code blocks to satisfy markdownlint (MD040).
The two fences around the data-flow and cache-key sections are missing a language spec.

-```
+```text
 ...
-```
+```

-Stored in localStorage as:
-```
+Stored in localStorage as:
+```text
 Key: 'stablepay_overview_stats'
 Value: JSON string of OverviewStats
-```
+```
🧰 Tools
🪛 markdownlint-cli2 (0.18.1)

47-47: Fenced code blocks should have a language specified

(MD040, fenced-code-language)


79-79: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🤖 Prompt for AI Agents
dashboard/OVERVIEW_STATS_IMPLEMENTATION.md around lines 47 to 83: the two fenced
code blocks (the data-flow diagram and the "Stored in localStorage as" snippet)
are missing a language spec causing markdownlint MD040; update both opening
fences to include a language (use "text") so they become ```text and keep the
existing closing ``` unchanged.

@manishyad375375
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Author

🚀 Additional Update: GitHub Pages Deployment Included

Issue #4 Resolution

This PR also includes the GitHub Pages deployment configuration that resolves Issue #4.

🔗 Live Deployment: https://manishyad375375.github.io/StablePay-MerchantDashboard/


Deployment Changes Included

1. Next.js Configuration (dashboard/next.config.mjs)

output: "export",
basePath: "/StablePay-MerchantDashboard",
images: { unoptimized: true }

2. GitHub Actions Workflow (.github/workflows/nextjs.yml)

  • ✅ Configured for dashboard/ subdirectory structure
  • ✅ npm package manager with caching
  • ✅ Artifact upload from dashboard/out
  • ✅ Automatic deployment on push to main

Testing

  • Static export builds successfully
  • Routes and assets load correctly on GitHub Pages
  • Dashboard functionality works as expected
  • Wallet connection and transactions display properly

Summary

This PR now addresses two issues:

  1. Issue Improve Overview Tab (Stats + Graph Updates) #5: Overview Tab Stats Caching with Loading Behavior
  2. Issue Deploy StablePay merchant dashboard (Next.js Website) to GitHub Pages #4: Deploy Next.js Website to GitHub Pages

Both features have been tested and verified in the fork deployment.

@LogicalGuy77 LogicalGuy77 mentioned this pull request Dec 13, 2025
@Tanya-ruby
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@manishyad375375 It would be appreciated if you can add screen recording of the changes metioned

@DeveloperAmrit
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Member

@manishyad375375 Can you resolve merger conflicts and add a video recording of changes you have did.

@manishyad375375
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Author

Sure 👍

@manishyad375375
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manishyad375375 commented Jun 2, 2026 via email

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3 participants