Trial Class System

#### **Type 1: New Person**
For someone who has never been a student:
- Complete **Name** and **Last Name** of the person
- Does not require creating a student account
- Registered as "Trial Person" in the system
- Identified with 🎓 emoji in calendar

#### **Type 2: Existing Inactive Student**
For an already registered student wanting to try a new specialty:
- Select student from the list
- **Requirement**: Student must be **INACTIVE**
- **Requirement**: Must not have classes (scheduled/completed) of that specialty

### Automatic Validations:

The system validates automatically:

✅ **Rule 1**: A student CANNOT have a trial class if they already have classes (scheduled or completed) of that specialty

✅ **Rule 2**: A student CANNOT repeat trial class of the same specialty

✅ **Rule 3**: Trial classes DO NOT count towards the student's monthly quota

### Visual Indicators:

Trial classes are identified with:
- 🎓 Emoji in the calendar
- Orange border in the cell
- "Prueba" badge in details
- Informational alert when editing

const estadisticasPrueba = useMemo(() => {
  const pruebas = clasesFiltradas.filter((c: Clase) => c.esPrueba);
  const porEspecialidad: Record<string, number> = {};
  pruebas.forEach((c: Clase) => {
    porEspecialidad[c.especialidad] =
      (porEspecialidad[c.especialidad] || 0) + 1;
  });

  // Conversion: active students who had trial class at ANY time
  const alumnosIds = new Set(
    clases
      .filter((c: Clase) => c.esPrueba && c.alumnoId)
      .map((c: Clase) => c.alumnoId),
  );
  const convertidos = alumnos.filter(
    (a: Alumno) => a.activo && alumnosIds.has(a.id),
  ).length;

  return {
    total: pruebas.length,
    porEspecialidad: Object.entries(porEspecialidad).map(
      ([especialidad, cantidad]) => ({ especialidad, cantidad }),
    ),
    personasNuevas: pruebas.filter((c: Clase) => !c.alumnoId).length,
    alumnosExistentes: pruebas.filter((c: Clase) => !!c.alumnoId).length,
    convertidos,
  };
}, [clasesFiltradas, clases, alumnos]);

<Card>
  <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
    <CardTitle className="text-sm font-medium">
      Clases de Prueba
    </CardTitle>
    <TrendingUp className="h-4 w-4 text-muted-foreground" />
  </CardHeader>
  <CardContent>
    <div className="text-2xl font-bold">
      {estadisticasPrueba.total}
    </div>
    <p className="text-xs text-muted-foreground">
      {estadisticasPrueba.convertidos} conversiones
    </p>
  </CardContent>
</Card>

### For Managing Trial Classes:

#### New Person:
1. Create class normally
2. Check "Trial Class" checkbox
3. Select "New person"
4. Enter name and last name
5. Save

#### Existing Student:
1. Create class normally
2. Check "Trial Class" checkbox
3. Select "Existing student"
4. Choose INACTIVE student from selector
5. System validates automatically
6. Save

// Conversion: active students who had trial class at ANY time
const alumnosIds = new Set(
  clases
    .filter((c: Clase) => c.esPrueba && c.alumnoId)
    .map((c: Clase) => c.alumnoId),
);
const convertidos = alumnos.filter(
  (a: Alumno) => a.activo && alumnosIds.has(a.id),
).length;

personasNuevas: pruebas.filter((c: Clase) => !c.alumnoId).length,
alumnosExistentes: pruebas.filter((c: Clase) => !!c.alumnoId).length,

✅ **Rule 3**: Trial classes DO NOT count towards the student's monthly quota

<TabsTrigger value="pruebas">Clases de Prueba</TabsTrigger>