MVP

Ignore.txt

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+CRITICAL NODE-RED DASHBOARD CHART.JS FIX - PRESERVE ALL FUNCTIONALITY
+I'm experiencing a Chart.js error in my Node-RED dashboard: Cannot read properties of undefined (reading 'length') at the determineDataLimits function. This occurs when trying to load charts with time-based x-axes.
+Current Error Details:
+
+Error location: app.min.js:556 in a.determineDataLimits
+Additional 404 error: ui/loading.html not found
+Chart.js version appears to be v4
+Time adapter (chartjs-adapter-date-fns) was supposedly added but charts still not rendering
+
+REQUIREMENTS (ALL MUST BE MET):
+
+Fix the Chart.js time scale issue:
+
+Ensure chartjs-adapter-date-fns is properly loaded and initialized BEFORE any charts are created
+Verify the adapter is compatible with the Chart.js version being used
+Confirm the time scale is properly registered with Chart.js
+
+
+Verify mock data structure:
+
+Mock data must have proper timestamp format (ISO 8601 or Unix timestamps)
+Data arrays must have matching lengths for x and y values
+Include realistic variance for: OEE (~72%), Availability (~85%), Performance (~88%), Quality (~94%)
+
+
+Check loading order:
+
+Chart.js library must load first
+Time adapter must load second
+Chart creation code must execute last
+Add console logs to verify loading sequence
+
+
+PRESERVE ALL EXISTING FUNCTIONALITY:
+
+Home tab - unchanged
+Alerts tab - unchanged
+Work Orders tab - unchanged
+Settings tab - unchanged
+Help tab - unchanged
+Only the Graphs tab should be modified
+
+
+Provide complete debugging steps:
+
+Show me how to verify the adapter is loaded in browser console
+Provide fallback options if adapter doesn't load from CDN
+Include error handling for chart initialization failures
+
+
+Output format:
+
+Provide the complete Node-RED flow JSON that I can import
+Include all necessary HTML/JavaScript for the dashboard template
+Mark clearly which nodes have been modified vs. unchanged
+Include step-by-step deployment instructions
+
+
+
+Additional Context:
+
+Node-RED dashboard is running on http://10.147.20.185:1880
+Using Less CSS (app.min.less) for styling
+Need hard refresh instructions for different browsers after deployment
+
+Success Criteria:
+
+No console errors after deployment and hard refresh
+Charts display with mock data immediately upon loading Graphs tab
+All filter buttons are clickable and functional
+All other tabs remain completely functional
+Solution works without requiring external CDN if possible
+
+Please provide a complete, tested solution that addresses every point above. Include explanations for each fix so I understand what was wrong and how it's been corrected.