Implement difficulty levels for activities with filtering functionality

src/main/java/com/mergingtonhigh/schoolmanagement/application/dtos/ActivityDTO.java

@@ -13,7 +13,8 @@ public record ActivityDTO(
         int maxParticipants,
         List<String> participants,
         int currentParticipantCount,
-        ActivityTypeDTO type) {
+        ActivityTypeDTO type,
+        DifficultyLevelDTO difficultyLevel) {
     public record ScheduleDetailsDTO(
             List<String> days,
             String startTime,

src/main/java/com/mergingtonhigh/schoolmanagement/application/dtos/DifficultyLevelDTO.java

@@ -0,0 +1,9 @@
+package com.mergingtonhigh.schoolmanagement.application.dtos;
+
+/**
+ * DTO for difficulty level data transfer.
+ */
+public record DifficultyLevelDTO(
+        String name,
+        String label) {
+}

src/main/java/com/mergingtonhigh/schoolmanagement/domain/entities/Activity.java

@@ -7,6 +7,7 @@
 import org.springframework.data.mongodb.core.mapping.Document;
 
 import com.mergingtonhigh.schoolmanagement.domain.valueobjects.ActivityType;
+import com.mergingtonhigh.schoolmanagement.domain.valueobjects.DifficultyLevel;
 import com.mergingtonhigh.schoolmanagement.domain.valueobjects.Email;
 import com.mergingtonhigh.schoolmanagement.domain.valueobjects.ScheduleDetails;
 
@@ -24,20 +25,27 @@ public class Activity {
     private int maxParticipants;
     private List<String> participants;
     private ActivityType type;
+    private DifficultyLevel difficultyLevel;
 
     public Activity() {
         this.participants = new ArrayList<>();
     }
 
     public Activity(String name, String description, String schedule,
             ScheduleDetails scheduleDetails, int maxParticipants, ActivityType type) {
+        this(name, description, schedule, scheduleDetails, maxParticipants, type, null);
+    }
+
+    public Activity(String name, String description, String schedule,
+            ScheduleDetails scheduleDetails, int maxParticipants, ActivityType type, DifficultyLevel difficultyLevel) {
         this.name = validateName(name);
         this.description = validateDescription(description);
         this.schedule = schedule;
         this.scheduleDetails = scheduleDetails;
         this.maxParticipants = validateMaxParticipants(maxParticipants);
         this.participants = new ArrayList<>();
         this.type = type != null ? type : ActivityType.determineFromContent(name, description);
+        this.difficultyLevel = difficultyLevel;
     }
 
     public boolean canAddParticipant() {
@@ -146,4 +154,12 @@ public ActivityType getType() {
     public void setType(ActivityType type) {
         this.type = type != null ? type : ActivityType.determineFromContent(this.name, this.description);
     }
+
+    public DifficultyLevel getDifficultyLevel() {
+        return difficultyLevel;
+    }
+
+    public void setDifficultyLevel(DifficultyLevel difficultyLevel) {
+        this.difficultyLevel = difficultyLevel;
+    }
 }

src/main/java/com/mergingtonhigh/schoolmanagement/domain/valueobjects/DifficultyLevel.java

@@ -0,0 +1,21 @@
+package com.mergingtonhigh.schoolmanagement.domain.valueobjects;
+
+/**
+ * Enum representing the different difficulty levels of activities.
+ * Each level has a label for display purposes.
+ */
+public enum DifficultyLevel {
+    BEGINNER("Iniciante"),
+    INTERMEDIATE("Intermediário"),
+    ADVANCED("Avançado");
+
+    private final String label;
+
+    DifficultyLevel(String label) {
+        this.label = label;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+}

src/main/java/com/mergingtonhigh/schoolmanagement/infrastructure/migrations/V001_InitialDatabaseSetup.java

@@ -12,6 +12,7 @@
 import com.mergingtonhigh.schoolmanagement.domain.entities.Activity;
 import com.mergingtonhigh.schoolmanagement.domain.entities.Teacher;
 import com.mergingtonhigh.schoolmanagement.domain.valueobjects.ActivityType;
+import com.mergingtonhigh.schoolmanagement.domain.valueobjects.DifficultyLevel;
 import com.mergingtonhigh.schoolmanagement.domain.valueobjects.ScheduleDetails;
 
 import io.mongock.api.annotations.ChangeUnit;
@@ -70,15 +71,16 @@ private void seedActivities() {
                 chessClub.setParticipants(List.of("michael@mergington.edu", "daniel@mergington.edu"));
                 mongoTemplate.save(chessClub);
 
-                // Aula de Programação
+                // Aula de Programação - Intermediário
                 Activity programmingClass = new Activity(
                                 "Aula de Programação",
                                 "Aprenda fundamentos de programação e desenvolva projetos de software",
                                 "Terças e quintas-feiras, 07:00 - 08:00",
                                 new ScheduleDetails(List.of("Tuesday", "Thursday"), LocalTime.of(7, 0),
                                                 LocalTime.of(8, 0)),
                                 20,
-                                ActivityType.TECHNOLOGY);
+                                ActivityType.TECHNOLOGY,
+                                DifficultyLevel.INTERMEDIATE);
                 programmingClass.setParticipants(List.of("emma@mergington.edu", "sophia@mergington.edu"));
                 mongoTemplate.save(programmingClass);
 
@@ -118,14 +120,15 @@ private void seedActivities() {
                 basketballTeam.setParticipants(List.of("ava@mergington.edu", "mia@mergington.edu"));
                 mongoTemplate.save(basketballTeam);
 
-                // Clube de Arte
+                // Clube de Arte - Iniciante
                 Activity artClub = new Activity(
                                 "Clube de Arte",
                                 "Explore diversas técnicas artísticas e crie obras-primas",
                                 "Quintas-feiras, 15:15 - 17:00",
                                 new ScheduleDetails(List.of("Thursday"), LocalTime.of(15, 15), LocalTime.of(17, 0)),
                                 15,
-                                ActivityType.ARTS);
+                                ActivityType.ARTS,
+                                DifficultyLevel.BEGINNER);
                 artClub.setParticipants(List.of("amelia@mergington.edu", "harper@mergington.edu"));
                 mongoTemplate.save(artClub);
 
@@ -163,25 +166,27 @@ private void seedActivities() {
                 debateTeam.setParticipants(List.of("charlotte@mergington.edu", "amelia@mergington.edu"));
                 mongoTemplate.save(debateTeam);
 
-                // Oficina de Robótica
+                // Oficina de Robótica - Avançado
                 Activity roboticsWorkshop = new Activity(
                                 "Oficina de Robótica",
                                 "Construa e programe robôs em nossa oficina de última geração",
                                 "Sábados, 10:00 - 14:00",
                                 new ScheduleDetails(List.of("Saturday"), LocalTime.of(10, 0), LocalTime.of(14, 0)),
                                 15,
-                                ActivityType.TECHNOLOGY);
+                                ActivityType.TECHNOLOGY,
+                                DifficultyLevel.ADVANCED);
                 roboticsWorkshop.setParticipants(List.of("ethan@mergington.edu", "oliver@mergington.edu"));
                 mongoTemplate.save(roboticsWorkshop);
 
-                // Olimpíada de Ciências
+                // Olimpíada de Ciências - Avançado
                 Activity scienceOlympiad = new Activity(
                                 "Olimpíada de Ciências",
                                 "Preparação para competições científicas regionais e estaduais aos fins de semana",
                                 "Sábados, 13:00 - 16:00",
                                 new ScheduleDetails(List.of("Saturday"), LocalTime.of(13, 0), LocalTime.of(16, 0)),
                                 18,
-                                ActivityType.ACADEMIC);
+                                ActivityType.ACADEMIC,
+                                DifficultyLevel.ADVANCED);
                 scienceOlympiad.setParticipants(List.of("isabella@mergington.edu", "lucas@mergington.edu"));
                 mongoTemplate.save(scienceOlympiad);
 

src/main/java/com/mergingtonhigh/schoolmanagement/presentation/mappers/ActivityMapper.java

@@ -4,6 +4,7 @@
 
 import com.mergingtonhigh.schoolmanagement.application.dtos.ActivityDTO;
 import com.mergingtonhigh.schoolmanagement.application.dtos.ActivityTypeDTO;
+import com.mergingtonhigh.schoolmanagement.application.dtos.DifficultyLevelDTO;
 import com.mergingtonhigh.schoolmanagement.domain.entities.Activity;
 
 /**
@@ -34,6 +35,13 @@ public ActivityDTO toDTO(Activity activity) {
                     activity.getType().getTextColor());
         }
 
+        DifficultyLevelDTO difficultyLevelDTO = null;
+        if (activity.getDifficultyLevel() != null) {
+            difficultyLevelDTO = new DifficultyLevelDTO(
+                    activity.getDifficultyLevel().name().toLowerCase(),
+                    activity.getDifficultyLevel().getLabel());
+        }
+
         return new ActivityDTO(
                 activity.getName(),
                 activity.getDescription(),
@@ -42,6 +50,7 @@ public ActivityDTO toDTO(Activity activity) {
                 activity.getMaxParticipants(),
                 activity.getParticipants(),
                 activity.getCurrentParticipantCount(),
-                typeDTO);
+                typeDTO,
+                difficultyLevelDTO);
     }
 }

src/main/resources/static/app.js

@@ -14,6 +14,7 @@ document.addEventListener("DOMContentLoaded", () => {
   const categoryFilters = document.querySelectorAll(".category-filter");
   const dayFilters = document.querySelectorAll(".day-filter");
   const timeFilters = document.querySelectorAll(".time-filter");
+  const difficultyFilters = document.querySelectorAll(".difficulty-filter");
 
   // Authentication elements
   const loginButton = document.getElementById("login-button");
@@ -33,6 +34,7 @@ document.addEventListener("DOMContentLoaded", () => {
   let searchQuery = "";
   let currentDay = "";
   let currentTimeRange = "";
+  let currentDifficulty = "";
 
   // Authentication state
   let currentUser = null;
@@ -57,6 +59,12 @@ document.addEventListener("DOMContentLoaded", () => {
     if (activeTimeFilter) {
       currentTimeRange = activeTimeFilter.dataset.time;
     }
+
+    // Initialize difficulty filter
+    const activeDifficultyFilter = document.querySelector(".difficulty-filter.active");
+    if (activeDifficultyFilter) {
+      currentDifficulty = activeDifficultyFilter.dataset.difficulty;
+    }
   }
 
   // Function to set day filter
@@ -91,6 +99,22 @@ document.addEventListener("DOMContentLoaded", () => {
     fetchActivities();
   }
 
+  // Function to set difficulty filter
+  function setDifficultyFilter(difficulty) {
+    currentDifficulty = difficulty;
+
+    // Update active class
+    difficultyFilters.forEach((btn) => {
+      if (btn.dataset.difficulty === difficulty) {
+        btn.classList.add("active");
+      } else {
+        btn.classList.remove("active");
+      }
+    });
+
+    fetchActivities();
+  }
+
   // Check if user is already logged in (from localStorage)
   function checkAuthentication() {
     const savedUser = localStorage.getItem("currentUser");
@@ -386,6 +410,23 @@ document.addEventListener("DOMContentLoaded", () => {
         return;
       }
 
+      // Aplicar filtro de dificuldade
+      if (currentDifficulty !== "") {
+        const activityDifficulty = details.difficultyLevel ? details.difficultyLevel.name : null;
+
+        if (currentDifficulty === "none") {
+          // "Todos os Níveis" significa apenas atividades sem dificuldade especificada
+          if (activityDifficulty !== null) {
+            return;
+          }
+        } else {
+          // Filtrar por nível específico (beginner, intermediate, advanced)
+          if (activityDifficulty !== currentDifficulty) {
+            return;
+          }
+        }
+      }
+
       // Atividade passou por todos os filtros, adicionar à lista filtrada
       filteredActivities[name] = details;
     });
@@ -579,6 +620,19 @@ document.addEventListener("DOMContentLoaded", () => {
     });
   });
 
+  // Add event listeners for difficulty filter buttons
+  difficultyFilters.forEach((button) => {
+    button.addEventListener("click", () => {
+      // Update active class
+      difficultyFilters.forEach((btn) => btn.classList.remove("active"));
+      button.classList.add("active");
+
+      // Update current difficulty filter and display filtered activities
+      currentDifficulty = button.dataset.difficulty;
+      displayFilteredActivities();
+    });
+  });
+
   // Open registration modal
   function openRegistrationModal(activityName) {
     modalActivityName.textContent = activityName;
@@ -797,6 +851,7 @@ document.addEventListener("DOMContentLoaded", () => {
   window.activityFilters = {
     setDayFilter,
     setTimeRangeFilter,
+    setDifficultyFilter,
   };
 
   // Initialize app

src/main/resources/static/index.html

@@ -99,6 +99,28 @@ <h3>Filtrar Atividades</h3>
                 <button class="time-filter" data-time="weekend">Fim de Semana</button>
               </div>
             </div>
+
+            <!-- Difficulty Filter -->
+            <div class="filter-container difficulty-filter-container">
+              <div class="filter-label">Filtrar por dificuldade:</div>
+              <div class="difficulty-filters" id="difficulty-filters">
+                <button class="difficulty-filter active" data-difficulty="">
+                  Todas as Dificuldades
+                </button>
+                <button class="difficulty-filter" data-difficulty="none">
+                  Todos os Níveis
+                </button>
+                <button class="difficulty-filter" data-difficulty="beginner">
+                  Iniciante
+                </button>
+                <button class="difficulty-filter" data-difficulty="intermediate">
+                  Intermediário
+                </button>
+                <button class="difficulty-filter" data-difficulty="advanced">
+                  Avançado
+                </button>
+              </div>
+            </div>
           </aside>
 
           <!-- Activities Content -->

src/main/resources/static/styles.css

@@ -539,15 +539,17 @@ footer {
 
 .category-filters,
 .day-filters,
-.time-filters {
+.time-filters,
+.difficulty-filters {
   display: flex;
   flex-wrap: wrap;
   gap: 6px;
 }
 
 .category-filter,
 .day-filter,
-.time-filter {
+.time-filter,
+.difficulty-filter {
   background-color: var(--background);
   border: 1px solid var(--border);
   color: var(--text-primary);
@@ -560,15 +562,17 @@ footer {
 
 .category-filter.active,
 .day-filter.active,
-.time-filter.active {
+.time-filter.active,
+.difficulty-filter.active {
   background-color: var(--primary);
   color: white;
   border-color: var(--primary-dark);
 }
 
 .category-filter:hover,
 .day-filter:hover,
-.time-filter:hover {
+.time-filter:hover,
+.difficulty-filter:hover {
   background-color: var(--primary-light);
   color: white;
 }