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apps/Frontend/src/components/analytics/appointments-by-day.tsx

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+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { BarChart, Bar, XAxis, YAxis, CartesianGrid, ResponsiveContainer, Tooltip } from "recharts";
+
+interface AppointmentsByDayProps {
+  appointments: any[];
+}
+
+export function AppointmentsByDay({ appointments }: AppointmentsByDayProps) {
+  // Data processing for appointments by day
+  const daysOfWeek = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"];
+  
+  // Initialize counts for each day
+  const countsByDay = daysOfWeek.map(day => ({ day, count: 0 }));
+  
+  // Count appointments by day of week
+  appointments.forEach(appointment => {
+    const date = new Date(appointment.date);
+    const dayOfWeek = date.getDay(); // 0 = Sunday, 1 = Monday, ...
+    const dayIndex = dayOfWeek === 0 ? 6 : dayOfWeek - 1; // Adjust to make Monday first
+    countsByDay[dayIndex].count += 1;
+  });
+
+  return (
+    <Card className="shadow-sm">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-base font-medium">Appointments by Day</CardTitle>
+        <p className="text-xs text-muted-foreground">Distribution of appointments throughout the week</p>
+      </CardHeader>
+      <CardContent>
+        <div className="h-[200px]">
+          <ResponsiveContainer width="100%" height="100%">
+            <BarChart
+              data={countsByDay}
+              margin={{ top: 5, right: 5, left: 0, bottom: 5 }}
+            >
+              <CartesianGrid strokeDasharray="3 3" vertical={false} />
+              <XAxis dataKey="day" fontSize={12} tickLine={false} axisLine={false} />
+              <YAxis fontSize={12} tickLine={false} axisLine={false} />
+              <Tooltip 
+                formatter={(value) => [`${value} appointments`, "Count"]}
+                labelFormatter={(value) => `${value}`}
+              />
+              <Bar dataKey="count" fill="#2563eb" radius={[4, 4, 0, 0]} />
+            </BarChart>
+          </ResponsiveContainer>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}