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frontend/src/components/Calendar/WorkloadHeatmap.jsx

@@ -5,6 +5,9 @@ import useFocusStore from '../../store/useFocusStore'
 
 const WEEKS = 20
 const DAY_INIT = ['M','T','W','T','F','S','S']
+const CELL = 16
+const CELL_LG = 20
+const GAP  = 2
 
 const STATUS_KEYS = ['upcoming','in_progress','completed','overdue']
 const STATUS_LABEL = {
@@ -20,7 +23,6 @@ const STATUS_COLOR = {
   overdue:     'text-red-400',
 }
 
-// Cell colors per status, three density levels: low / mid / high
 const STATUS_CELL_COLORS = {
   upcoming:    [
     'bg-blue-400/20 border-blue-400/30',
@@ -51,6 +53,9 @@ const STATUS_HOVER_RING = {
   overdue:     'hover:ring-1 hover:ring-red-400/90',
 }
 
+// Tie-break priority: overdue > in_progress > upcoming > completed
+const STATUS_PRIORITY = { overdue: 4, in_progress: 3, upcoming: 2, completed: 1 }
+
 function getCellClass(count, statusKey) {
   if (count === 0) return 'bg-surface border-surface-border'
   const colors = STATUS_CELL_COLORS[statusKey] || STATUS_CELL_COLORS.upcoming
@@ -59,6 +64,24 @@ function getCellClass(count, statusKey) {
   return colors[2]
 }
 
+function getDominantStatus(statusCounts) {
+  let dominant = null
+  let maxCount = 0
+  let maxPriority = 0
+  for (const [sk, count] of Object.entries(statusCounts)) {
+    if (count === 0) continue
+    if (
+      count > maxCount ||
+      (count === maxCount && (STATUS_PRIORITY[sk] || 0) > maxPriority)
+    ) {
+      dominant    = sk
+      maxCount    = count
+      maxPriority = STATUS_PRIORITY[sk] || 0
+    }
+  }
+  return { dominant, total: Object.values(statusCounts).reduce((a, b) => a + b, 0) }
+}
+
 export default function WorkloadHeatmap() {
   const projects  = useProjectStore(s => s.projects)
   const openFocus = useFocusStore(s => s.openFocus)
@@ -107,8 +130,14 @@ export default function WorkloadHeatmap() {
     return labels
   }, [weeks])
 
-  const CELL = 16
-  const GAP  = 2
+  const monthLabelsBig = useMemo(() => {
+    const labels = []; let last = -1
+    weeks.forEach((week, wi) => {
+      const m = week[0].date.getMonth()
+      if (m !== last) { labels.push({ wi, label: format(week[0].date, 'MMM') }); last = m }
+    })
+    return labels
+  }, [weeks])
 
   return (
     <div className="flex flex-col h-full bg-surface overflow-auto">
@@ -123,45 +152,27 @@ export default function WorkloadHeatmap() {
         </div>
       </div>
 
-      {/* Stat cards + aligned status heatmaps */}
-      <div className="grid grid-cols-4 gap-4 px-8 pb-8">
+      {/* Stat cards + per-status heatmaps */}
+      <div className="grid grid-cols-4 gap-4 px-8 pb-4">
         {STATUS_KEYS.map((statusKey) => (
           <div key={statusKey} className="flex flex-col gap-3">
-            {/* Stat card */}
             <div className="bg-surface-elevated border border-surface-border rounded-xl p-4 text-center">
-              <p className={`text-2xl font-bold ${STATUS_COLOR[statusKey]}`}>
-                {stats[statusKey]}
-              </p>
+              <p className={`text-2xl font-bold ${STATUS_COLOR[statusKey]}`}>{stats[statusKey]}</p>
               <p className="text-text-muted text-xs mt-1">{STATUS_LABEL[statusKey]}</p>
             </div>
-
-            {/* Heatmap filtered to this status */}
             <div className="bg-surface-elevated/40 border border-surface-border rounded-xl p-3 flex-1 min-h-[160px] flex items-center justify-center">
               <div className="flex gap-2 overflow-x-auto pb-1 justify-center">
-                {/* Day labels */}
                 <div className="flex flex-col flex-shrink-0 pt-6" style={{ gap: GAP }}>
                   {DAY_INIT.map((d, i) => (
-                    <div key={i} style={{ height: CELL }} className="flex items-center text-[9px] text-text-muted/50 font-mono w-3">
-                      {d}
-                    </div>
+                    <div key={i} style={{ height: CELL }} className="flex items-center text-[9px] text-text-muted/50 font-mono w-3">{d}</div>
                   ))}
                 </div>
-
-                {/* Grid */}
                 <div className="flex flex-col flex-shrink-0">
-                  {/* Month labels */}
                   <div className="relative h-4 mb-1">
                     {monthLabels.map(({ wi, label }) => (
-                      <span
-                        key={label+wi}
-                        className="absolute text-[9px] text-text-muted/60 font-medium"
-                        style={{ left: wi * (CELL + GAP) }}
-                      >
-                        {label}
-                      </span>
+                      <span key={label+wi} className="absolute text-[9px] text-text-muted/60 font-medium" style={{ left: wi * (CELL + GAP) }}>{label}</span>
                     ))}
                   </div>
-
                   <div className="flex" style={{ gap: GAP }}>
                     {weeks.map((week, wi) => (
                       <div key={wi} className="flex flex-col flex-shrink-0" style={{ gap: GAP }}>
@@ -177,20 +188,14 @@ export default function WorkloadHeatmap() {
                                 ${count > 0 ? STATUS_HOVER_RING[statusKey] : ''}
                               `}
                               onClick={() => {
-                                if (!items || !items.length) return
+                                if (!items?.length) return
                                 const match = items.find(({ deliverable }) => deliverable.status === statusKey) || items[0]
                                 if (match) openFocus(match.project.id, match.deliverable.id)
                               }}
                               onMouseEnter={(e) => {
                                 const filtered = (items || []).filter(({ deliverable }) => deliverable.status === statusKey)
                                 if (!filtered.length) return
-                                setTooltip({
-                                  x: e.clientX,
-                                  y: e.clientY,
-                                  date,
-                                  statusKey,
-                                  items: filtered,
-                                })
+                                setTooltip({ x: e.clientX, y: e.clientY, date, statusKey, items: filtered })
                               }}
                               onMouseLeave={() => setTooltip(null)}
                             />
@@ -206,6 +211,82 @@ export default function WorkloadHeatmap() {
         ))}
       </div>
 
+      {/* Combined heatmap */}
+      <div className="px-8 pb-8">
+        <div className="bg-surface-elevated/40 border border-surface-border rounded-xl p-5">
+          <div className="flex items-center justify-between mb-4">
+            <div className="flex items-baseline gap-2">
+              <h3 className="text-xs font-semibold tracking-widest uppercase text-text-muted/70">All Tasks</h3>
+              <span className="text-text-muted/60 text-[10px] font-mono">{stats.total} tasks</span>
+            </div>
+            <div className="flex items-center gap-4 text-[9px] text-text-muted/60">
+              {STATUS_KEYS.map(sk => (
+                <div key={sk} className="flex items-center gap-1.5">
+                  <div className={`w-2.5 h-2.5 rounded-sm border ${STATUS_CELL_COLORS[sk][2].split(' ').slice(0,2).join(' ')}`} />
+                  <span className={STATUS_COLOR[sk]}>{STATUS_LABEL[sk]}</span>
+                </div>
+              ))}
+              <span className="ml-1 text-text-muted/40">· color = highest count</span>
+            </div>
+          </div>
+
+          <div className="flex gap-3 overflow-x-auto pb-2 justify-center">
+            {/* Day labels */}
+            <div className="flex flex-col flex-shrink-0 pt-6" style={{ gap: GAP }}>
+              {DAY_INIT.map((d, i) => (
+                <div key={i} style={{ height: CELL_LG }} className="flex items-center text-[10px] text-text-muted/50 font-mono w-4">{d}</div>
+              ))}
+            </div>
+
+            {/* Grid */}
+            <div className="flex flex-col flex-shrink-0">
+              <div className="relative h-5 mb-1">
+                {monthLabelsBig.map(({ wi, label }) => (
+                  <span key={label+wi} className="absolute text-[10px] text-text-muted/60 font-medium" style={{ left: wi * (CELL_LG + GAP) }}>{label}</span>
+                ))}
+              </div>
+              <div className="flex" style={{ gap: GAP }}>
+                {weeks.map((week, wi) => (
+                  <div key={wi} className="flex flex-col flex-shrink-0" style={{ gap: GAP }}>
+                    {week.map(({ date, key, items, statusCounts }) => {
+                      const { dominant, total } = getDominantStatus(statusCounts || {})
+                      return (
+                        <div
+                          key={key + 'combined'}
+                          style={{ width: CELL_LG, height: CELL_LG }}
+                          className={`rounded-sm border cursor-pointer transition-transform duration-100 hover:scale-125 hover:z-10 relative
+                            ${dominant ? getCellClass(total, dominant) : 'bg-surface border-surface-border'}
+                            ${isToday(date) ? 'ring-1 ring-white/60' : ''}
+                            ${dominant ? STATUS_HOVER_RING[dominant] : ''}
+                          `}
+                          onClick={() => {
+                            if (!items?.length) return
+                            openFocus(items[0].project.id, items[0].deliverable.id)
+                          }}
+                          onMouseEnter={(e) => {
+                            if (!items?.length) return
+                            setTooltip({
+                              x: e.clientX,
+                              y: e.clientY,
+                              date,
+                              statusKey: dominant,
+                              items,
+                              combined: true,
+                              statusCounts,
+                            })
+                          }}
+                          onMouseLeave={() => setTooltip(null)}
+                        />
+                      )
+                    })}
+                  </div>
+                ))}
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
       {/* Tooltip */}
       {tooltip && (
         <div
@@ -215,14 +296,22 @@ export default function WorkloadHeatmap() {
           <p className={`text-xs font-bold mb-1.5 ${isToday(tooltip.date) ? 'text-gold' : 'text-text-primary'}`}>
             {isToday(tooltip.date) ? 'Today \u2014 ' : ''}{format(tooltip.date, 'EEE, MMM d, yyyy')}
           </p>
-          <p className={`text-[10px] mb-1.5 ${STATUS_COLOR[tooltip.statusKey]}`}>
-            {STATUS_LABEL[tooltip.statusKey]} \u00b7 {tooltip.items.length} task{tooltip.items.length !== 1 ? 's' : ''}
-          </p>
-          {tooltip.items.length === 0 ? (
-            <p className="text-text-muted/50 text-xs">No deliverables</p>
+          {tooltip.combined && tooltip.statusCounts ? (
+            <div className="space-y-1 mb-2">
+              {STATUS_KEYS.filter(sk => (tooltip.statusCounts[sk] || 0) > 0).map(sk => (
+                <div key={sk} className="flex items-center justify-between gap-3">
+                  <span className={`text-[10px] ${STATUS_COLOR[sk]}`}>{STATUS_LABEL[sk]}</span>
+                  <span className="text-[10px] text-text-muted/60 font-mono">{tooltip.statusCounts[sk]}</span>
+                </div>
+              ))}
+            </div>
           ) : (
+            <p className={`text-[10px] mb-1.5 ${tooltip.statusKey ? STATUS_COLOR[tooltip.statusKey] : 'text-text-muted/60'}`}>
+              {tooltip.statusKey ? STATUS_LABEL[tooltip.statusKey] : ''} \u00b7 {tooltip.items.length} task{tooltip.items.length !== 1 ? 's' : ''}
+            </p>
+          )}
           <div className="space-y-1.5">
-              {tooltip.items.slice(0, 5).map(({ deliverable, project }) => (
+            {(tooltip.items || []).slice(0, 5).map(({ deliverable, project }) => (
               <div key={deliverable.id} className="flex items-start gap-1.5">
                 <div className="w-1.5 h-1.5 rounded-full mt-1 flex-shrink-0" style={{ backgroundColor: project.color }} />
                 <div className="min-w-0 flex-1">
@@ -231,11 +320,10 @@ export default function WorkloadHeatmap() {
                 </div>
               </div>
             ))}
-              {tooltip.items.length > 5 && (
+            {(tooltip.items || []).length > 5 && (
               <p className="text-[10px] text-text-muted/50 pl-3">+{tooltip.items.length - 5} more</p>
             )}
           </div>
-          )}
         </div>
       )}
     </div>