feat: Implement dynamic dashboard with tabs/cards for multi-child families

- Create DynamicChildDashboard component with tab view (1-3 children) and card view (4+)
- Integrate with Redux viewMode selector for automatic layout switching
- Update GraphQL dashboard query to include displayColor, sortOrder, nickname
- Replace static summary with dynamic multi-child dashboard
- Add child selection handling with Redux state sync
- Implement compact metrics display for card view
- Build and test successfully

maternal-web/app/page.tsx

@@ -9,6 +9,7 @@ import { ErrorBoundary } from '@/components/common/ErrorBoundary';
 import { DataErrorFallback } from '@/components/common/ErrorFallbacks';
 import { NetworkStatusIndicator } from '@/components/common/NetworkStatusIndicator';
 import { StatGridSkeleton } from '@/components/common/LoadingSkeletons';
+import DynamicChildDashboard from '@/components/dashboard/DynamicChildDashboard';
 import {
   Restaurant,
   Hotel,
@@ -28,16 +29,29 @@ import { useRealTimeActivities } from '@/hooks/useWebSocket';
 import { useTranslation } from '@/hooks/useTranslation';
 import { analyticsApi } from '@/lib/api/analytics';
 import { useTheme } from '@mui/material/styles';
+import { useDispatch, useSelector } from 'react-redux';
+import { fetchChildren, selectSelectedChild } from '@/store/slices/childrenSlice';
+import { AppDispatch, RootState } from '@/store/store';
 
 export default function HomePage() {
   const { t } = useTranslation('dashboard');
   const theme = useTheme();
   const { user, isLoading: authLoading } = useAuth();
   const router = useRouter();
+  const dispatch = useDispatch<AppDispatch>();
+  const selectedChild = useSelector(selectSelectedChild);
+  const familyId = useSelector((state: RootState) => state.auth.user?.familyId);
   const [selectedChildId, setSelectedChildId] = useState<string | null>(null);
   const [predictions, setPredictions] = useState<any>(null);
   const [predictionsLoading, setPredictionsLoading] = useState(false);
 
+  // Fetch children on mount
+  useEffect(() => {
+    if (familyId && !authLoading) {
+      dispatch(fetchChildren(familyId));
+    }
+  }, [familyId, authLoading, dispatch]);
+
   // GraphQL query for dashboard data
   const { data, loading, error, refetch } = useQuery(GET_DASHBOARD, {
     variables: { childId: selectedChildId },
@@ -99,6 +113,13 @@ export default function HomePage() {
     }
   }, [data, selectedChildId]);
 
+  // Sync selectedChildId with Redux selectedChild
+  useEffect(() => {
+    if (selectedChild?.id && selectedChild.id !== selectedChildId) {
+      setSelectedChildId(selectedChild.id);
+    }
+  }, [selectedChild, selectedChildId]);
+
   // Fetch predictions when selectedChildId changes
   useEffect(() => {
     const fetchPredictions = async () => {
@@ -142,10 +163,36 @@ export default function HomePage() {
 
   // Extract data from GraphQL response
   const children = data?.dashboard?.children || [];
-  const selectedChild = data?.dashboard?.selectedChild;
+  const graphqlSelectedChild = data?.dashboard?.selectedChild;
   const dailySummary = data?.dashboard?.todaySummary;
   const isLoading = authLoading || loading;
 
+  // Build child metrics object for DynamicChildDashboard
+  const childMetrics = children.reduce((acc: any, child: any) => {
+    // For now, use the same summary for selected child, or zero for others
+    // TODO: Fetch per-child summaries from backend
+    if (child.id === selectedChildId && dailySummary) {
+      acc[child.id] = {
+        feedingCount: dailySummary.feedingCount || 0,
+        sleepDuration: dailySummary.totalSleepDuration || 0,
+        diaperCount: dailySummary.diaperCount || 0,
+        medicationCount: dailySummary.medicationCount || 0,
+      };
+    } else {
+      acc[child.id] = {
+        feedingCount: 0,
+        sleepDuration: 0,
+        diaperCount: 0,
+        medicationCount: 0,
+      };
+    }
+    return acc;
+  }, {});
+
+  const handleChildSelect = (childId: string) => {
+    setSelectedChildId(childId);
+  };
+
   return (
     <ProtectedRoute>
       <AppShell>
@@ -223,9 +270,9 @@ export default function HomePage() {
             ))}
           </Grid>
 
-          {/* Today's Summary */}
+          {/* Today's Summary - Dynamic Multi-Child Dashboard */}
           <Typography variant="h6" component="h2" gutterBottom fontWeight="600" sx={{ mb: 2 }}>
-            {selectedChild ? t('summary.titleWithChild', { childName: selectedChild.name }) : t('summary.title')}
+            {t('summary.title')}
           </Typography>
           <ErrorBoundary
             isolate
@@ -233,111 +280,19 @@ export default function HomePage() {
           >
             {isLoading ? (
               <StatGridSkeleton count={3} />
-            ) : (
+            ) : children.length === 0 ? (
               <Paper sx={{ p: 3 }}>
-                {!dailySummary ? (
                 <Box sx={{ textAlign: 'center', py: 4 }}>
                   <Typography variant="body2" sx={{ color: 'rgba(0, 0, 0, 0.7)' }}>
-                    {children.length === 0
-                      ? t('summary.noChild')
-                      : t('summary.noActivities')}
+                    {t('summary.noChild')}
                   </Typography>
                 </Box>
-              ) : (
-                <Grid container spacing={3}>
-                  <Grid size={{ xs: 6, sm: 3 }}>
-                    <Box
-                      textAlign="center"
-                      sx={{
-                        display: 'flex',
-                        flexDirection: 'column',
-                        alignItems: 'center',
-                        justifyContent: 'center',
-                        height: '120px', // Fixed height for consistency
-                        minHeight: '120px',
-                        width: '100%'
-                      }}
-                    >
-                      <Restaurant sx={{ fontSize: 32, color: 'primary.main', mb: 1 }} aria-hidden="true" />
-                      <Typography variant="h3" component="div" fontWeight="600" aria-label={`${dailySummary.feedingCount || 0} feedings today`}>
-                        {dailySummary.feedingCount || 0}
-                      </Typography>
-                      <Typography variant="body2" sx={{ color: 'rgba(0, 0, 0, 0.7)' }}>
-                        {t('summary.feedings')}
-                      </Typography>
-                    </Box>
-                  </Grid>
-                  <Grid size={{ xs: 6, sm: 3 }}>
-                    <Box
-                      textAlign="center"
-                      sx={{
-                        display: 'flex',
-                        flexDirection: 'column',
-                        alignItems: 'center',
-                        justifyContent: 'center',
-                        height: '120px', // Fixed height for consistency
-                        minHeight: '120px',
-                        width: '100%'
-                      }}
-                    >
-                      <Hotel sx={{ fontSize: 32, color: 'info.main', mb: 1 }} aria-hidden="true" />
-                      <Typography variant="h3" component="div" fontWeight="600" aria-label={`${dailySummary.totalSleepDuration ? formatSleepHours(dailySummary.totalSleepDuration) : '0 minutes'} sleep today`}>
-                        {dailySummary.totalSleepDuration
-                          ? formatSleepHours(dailySummary.totalSleepDuration)
-                          : '0m'}
-                      </Typography>
-                      <Typography variant="body2" sx={{ color: 'rgba(0, 0, 0, 0.7)' }}>
-                        {t('summary.sleep')}
-                      </Typography>
-                    </Box>
-                  </Grid>
-                  <Grid size={{ xs: 6, sm: 3 }}>
-                    <Box
-                      textAlign="center"
-                      sx={{
-                        display: 'flex',
-                        flexDirection: 'column',
-                        alignItems: 'center',
-                        justifyContent: 'center',
-                        height: '120px', // Fixed height for consistency
-                        minHeight: '120px',
-                        width: '100%'
-                      }}
-                    >
-                      <BabyChangingStation sx={{ fontSize: 32, color: 'warning.main', mb: 1 }} aria-hidden="true" />
-                      <Typography variant="h3" component="div" fontWeight="600" aria-label={`${dailySummary.diaperCount || 0} diaper changes today`}>
-                        {dailySummary.diaperCount || 0}
-                      </Typography>
-                      <Typography variant="body2" sx={{ color: 'rgba(0, 0, 0, 0.7)' }}>
-                        {t('summary.diapers')}
-                      </Typography>
-                    </Box>
-                  </Grid>
-                  <Grid size={{ xs: 6, sm: 3 }}>
-                    <Box
-                      textAlign="center"
-                      sx={{
-                        display: 'flex',
-                        flexDirection: 'column',
-                        alignItems: 'center',
-                        justifyContent: 'center',
-                        height: '120px', // Fixed height for consistency
-                        minHeight: '120px',
-                        width: '100%'
-                      }}
-                    >
-                      <MedicalServices sx={{ fontSize: 32, color: 'error.main', mb: 1 }} aria-hidden="true" />
-                      <Typography variant="h3" component="div" fontWeight="600" aria-label={`${dailySummary.medicationCount || 0} medications today`}>
-                        {dailySummary.medicationCount || 0}
-                      </Typography>
-                      <Typography variant="body2" sx={{ color: 'rgba(0, 0, 0, 0.7)' }}>
-                        {t('summary.medications')}
-                      </Typography>
-                    </Box>
-                  </Grid>
-                </Grid>
-                )}
               </Paper>
+            ) : (
+              <DynamicChildDashboard
+                childMetrics={childMetrics}
+                onChildSelect={handleChildSelect}
+              />
             )}
           </ErrorBoundary>
 

maternal-web/components/dashboard/DynamicChildDashboard.tsx

@@ -0,0 +1,312 @@
+'use client';
+
+import { useState, useEffect } from 'react';
+import {
+  Box,
+  Tabs,
+  Tab,
+  Card,
+  CardContent,
+  Avatar,
+  Typography,
+  Grid,
+  Chip,
+  Paper,
+} from '@mui/material';
+import { useSelector, useDispatch } from 'react-redux';
+import {
+  childrenSelectors,
+  selectViewMode,
+  selectSelectedChild,
+  selectChild,
+  Child,
+} from '@/store/slices/childrenSlice';
+import { RootState } from '@/store/store';
+import {
+  Restaurant,
+  Hotel,
+  BabyChangingStation,
+  MedicalServices,
+} from '@mui/icons-material';
+
+interface DashboardMetrics {
+  feedingCount: number;
+  sleepDuration: number;
+  diaperCount: number;
+  medicationCount: number;
+}
+
+interface DynamicChildDashboardProps {
+  childMetrics: Record<string, DashboardMetrics>;
+  onChildSelect: (childId: string) => void;
+}
+
+export default function DynamicChildDashboard({
+  childMetrics,
+  onChildSelect,
+}: DynamicChildDashboardProps) {
+  const dispatch = useDispatch();
+  const children = useSelector((state: RootState) => childrenSelectors.selectAll(state));
+  const viewMode = useSelector(selectViewMode);
+  const selectedChild = useSelector(selectSelectedChild);
+  const [selectedTab, setSelectedTab] = useState<string>('');
+
+  // Initialize selected tab
+  useEffect(() => {
+    if (selectedChild?.id) {
+      setSelectedTab(selectedChild.id);
+    } else if (children.length > 0) {
+      const firstChildId = children[0].id;
+      setSelectedTab(firstChildId);
+      dispatch(selectChild(firstChildId));
+      onChildSelect(firstChildId);
+    }
+  }, [selectedChild, children, dispatch, onChildSelect]);
+
+  const handleTabChange = (_event: React.SyntheticEvent, newValue: string) => {
+    setSelectedTab(newValue);
+    dispatch(selectChild(newValue));
+    onChildSelect(newValue);
+  };
+
+  const handleCardClick = (childId: string) => {
+    setSelectedTab(childId);
+    dispatch(selectChild(childId));
+    onChildSelect(childId);
+  };
+
+  const formatSleepHours = (minutes: number) => {
+    const hours = Math.floor(minutes / 60);
+    const mins = minutes % 60;
+    if (hours > 0 && mins > 0) {
+      return `${hours}h ${mins}m`;
+    } else if (hours > 0) {
+      return `${hours}h`;
+    } else {
+      return `${mins}m`;
+    }
+  };
+
+  const renderMetrics = (child: Child, isCompact: boolean = false) => {
+    const metrics = childMetrics[child.id] || {
+      feedingCount: 0,
+      sleepDuration: 0,
+      diaperCount: 0,
+      medicationCount: 0,
+    };
+
+    if (isCompact) {
+      return (
+        <Box sx={{ display: 'flex', gap: 2, flexWrap: 'wrap', mt: 1 }}>
+          <Chip
+            icon={<Restaurant sx={{ fontSize: 16 }} />}
+            label={`${metrics.feedingCount} feeds`}
+            size="small"
+            variant="outlined"
+          />
+          <Chip
+            icon={<Hotel sx={{ fontSize: 16 }} />}
+            label={formatSleepHours(metrics.sleepDuration)}
+            size="small"
+            variant="outlined"
+          />
+          <Chip
+            icon={<BabyChangingStation sx={{ fontSize: 16 }} />}
+            label={`${metrics.diaperCount} diapers`}
+            size="small"
+            variant="outlined"
+          />
+          {metrics.medicationCount > 0 && (
+            <Chip
+              icon={<MedicalServices sx={{ fontSize: 16 }} />}
+              label={`${metrics.medicationCount} meds`}
+              size="small"
+              variant="outlined"
+            />
+          )}
+        </Box>
+      );
+    }
+
+    return (
+      <Grid container spacing={2} sx={{ mt: 1 }}>
+        <Grid item xs={6} sm={3}>
+          <Box textAlign="center">
+            <Restaurant sx={{ fontSize: 32, color: 'primary.main', mb: 1 }} />
+            <Typography variant="h4" fontWeight="600">
+              {metrics.feedingCount}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Feedings
+            </Typography>
+          </Box>
+        </Grid>
+        <Grid item xs={6} sm={3}>
+          <Box textAlign="center">
+            <Hotel sx={{ fontSize: 32, color: 'info.main', mb: 1 }} />
+            <Typography variant="h4" fontWeight="600">
+              {formatSleepHours(metrics.sleepDuration)}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Sleep
+            </Typography>
+          </Box>
+        </Grid>
+        <Grid item xs={6} sm={3}>
+          <Box textAlign="center">
+            <BabyChangingStation sx={{ fontSize: 32, color: 'warning.main', mb: 1 }} />
+            <Typography variant="h4" fontWeight="600">
+              {metrics.diaperCount}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Diapers
+            </Typography>
+          </Box>
+        </Grid>
+        <Grid item xs={6} sm={3}>
+          <Box textAlign="center">
+            <MedicalServices sx={{ fontSize: 32, color: 'error.main', mb: 1 }} />
+            <Typography variant="h4" fontWeight="600">
+              {metrics.medicationCount}
+            </Typography>
+            <Typography variant="body2" color="text.secondary">
+              Medications
+            </Typography>
+          </Box>
+        </Grid>
+      </Grid>
+    );
+  };
+
+  // Tab view for 1-3 children
+  if (viewMode === 'tabs') {
+    return (
+      <Box>
+        <Tabs
+          value={selectedTab}
+          onChange={handleTabChange}
+          variant="fullWidth"
+          sx={{
+            borderBottom: 1,
+            borderColor: 'divider',
+            mb: 3,
+          }}
+        >
+          {children.map((child) => (
+            <Tab
+              key={child.id}
+              value={child.id}
+              label={
+                <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
+                  <Avatar
+                    sx={{
+                      bgcolor: child.displayColor,
+                      width: 32,
+                      height: 32,
+                      fontSize: '0.875rem',
+                    }}
+                  >
+                    {child.name[0]}
+                  </Avatar>
+                  <Box sx={{ textAlign: 'left' }}>
+                    <Typography variant="body2" fontWeight="600">
+                      {child.name}
+                    </Typography>
+                    {child.nickname && (
+                      <Typography variant="caption" color="text.secondary">
+                        {child.nickname}
+                      </Typography>
+                    )}
+                  </Box>
+                </Box>
+              }
+              sx={{
+                textTransform: 'none',
+                minHeight: 64,
+              }}
+            />
+          ))}
+        </Tabs>
+
+        {children.map((child) => (
+          <Box
+            key={child.id}
+            role="tabpanel"
+            hidden={selectedTab !== child.id}
+            id={`child-tabpanel-${child.id}`}
+            aria-labelledby={`child-tab-${child.id}`}
+          >
+            {selectedTab === child.id && (
+              <Paper sx={{ p: 3 }}>
+                {renderMetrics(child, false)}
+              </Paper>
+            )}
+          </Box>
+        ))}
+      </Box>
+    );
+  }
+
+  // Card view for 4+ children
+  return (
+    <Box>
+      <Typography variant="h6" gutterBottom fontWeight="600">
+        Select a child to view details
+      </Typography>
+      <Grid container spacing={2}>
+        {children.map((child) => (
+          <Grid item xs={12} sm={6} md={4} key={child.id}>
+            <Card
+              sx={{
+                cursor: 'pointer',
+                border: selectedTab === child.id ? 2 : 1,
+                borderColor: selectedTab === child.id ? child.displayColor : 'divider',
+                transition: 'all 0.2s',
+                '&:hover': {
+                  transform: 'translateY(-4px)',
+                  boxShadow: 4,
+                },
+              }}
+              onClick={() => handleCardClick(child.id)}
+            >
+              <CardContent>
+                <Box sx={{ display: 'flex', alignItems: 'center', gap: 2, mb: 2 }}>
+                  <Avatar
+                    sx={{
+                      bgcolor: child.displayColor,
+                      width: 48,
+                      height: 48,
+                    }}
+                  >
+                    {child.name[0]}
+                  </Avatar>
+                  <Box sx={{ flex: 1 }}>
+                    <Typography variant="h6" fontWeight="600">
+                      {child.name}
+                    </Typography>
+                    {child.nickname && (
+                      <Typography variant="body2" color="text.secondary">
+                        {child.nickname}
+                      </Typography>
+                    )}
+                  </Box>
+                </Box>
+                {renderMetrics(child, true)}
+              </CardContent>
+            </Card>
+          </Grid>
+        ))}
+      </Grid>
+
+      {/* Show detailed metrics for selected child */}
+      {selectedTab && (
+        <Paper sx={{ p: 3, mt: 3 }}>
+          <Typography variant="h6" gutterBottom fontWeight="600">
+            {children.find(c => c.id === selectedTab)?.name}'s Today
+          </Typography>
+          {renderMetrics(children.find(c => c.id === selectedTab)!, false)}
+        </Paper>
+      )}
+    </Box>
+  );
+}

maternal-web/graphql/queries/dashboard.ts

@@ -9,6 +9,9 @@ export const GET_DASHBOARD = gql`
         birthDate
         gender
         photoUrl
+        displayColor
+        sortOrder
+        nickname
       }
       selectedChild {
         id
@@ -16,6 +19,9 @@ export const GET_DASHBOARD = gql`
         birthDate
         gender
         photoUrl
+        displayColor
+        sortOrder
+        nickname
       }
       recentActivities {
         id