Add filtering support to GET /api/v1/habits endpoint

Implemented comprehensive filtering capabilities for the habits list endpoint:
- Filter by type (BOOLEAN, COUNTER, VALUE)
- Filter by frequency (DAILY, WEEKLY, MONTHLY)
- Filter by archived status
- Text search in habit name and description
- All filters can be combined
- Filters work with pagination

Technical changes:
- Added FilterParams to GetUserHabitsQuery
- Created HabitFilter struct in repository interface
- Implemented dynamic SQL query building in SQLite repository
- Updated HTTP handler to parse filter query parameters
- Added comprehensive tests for repository and handler filtering
- Updated all test mocks with new filter methods

internal/application/commands/create_habit_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -238,3 +239,11 @@ func (m *mockHabitRepo) FindActiveByUserIDWithPagination(ctx context.Context, us
 func (m *mockHabitRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockHabitRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockHabitRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/delete_user_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -141,3 +142,11 @@ func (m *mockDeleteUserRepo) FindActiveByUserIDWithPagination(ctx context.Contex
 func (m *mockDeleteUserRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockDeleteUserRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockDeleteUserRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/mark_habit_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -554,3 +555,19 @@ func (m *mockHabitRepoForMark) FindActiveByUserIDWithPagination(ctx context.Cont
 func (m *mockHabitRepoForMark) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockEntryRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockEntryRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}
+
+func (m *mockHabitRepoForMark) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockHabitRepoForMark) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/register_user_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"errors"
@@ -304,3 +305,11 @@ func (m *mockUserRepo) FindActiveByUserIDWithPagination(ctx context.Context, use
 func (m *mockUserRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockUserRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockUserRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/request_password_reset_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -351,3 +352,19 @@ func (m *mockRequestResetUserRepo) FindActiveByUserIDWithPagination(ctx context.
 func (m *mockRequestResetUserRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockRequestResetTokenRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockRequestResetTokenRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}
+
+func (m *mockRequestResetUserRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockRequestResetUserRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/reset_password_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -396,3 +397,19 @@ func (m *mockResetPasswordUserRepo) FindActiveByUserIDWithPagination(ctx context
 func (m *mockResetPasswordUserRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockPasswordResetTokenRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockPasswordResetTokenRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}
+
+func (m *mockResetPasswordUserRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockResetPasswordUserRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/revoke_token_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -195,3 +196,11 @@ func (m *mockRefreshTokenRepo) FindActiveByUserIDWithPagination(ctx context.Cont
 func (m *mockRefreshTokenRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockRefreshTokenRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockRefreshTokenRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/unmark_habit_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -146,3 +147,11 @@ func (m *mockEntryRepoForUnmark) FindActiveByUserIDWithPagination(ctx context.Co
 func (m *mockEntryRepoForUnmark) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockEntryRepoForUnmark) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockEntryRepoForUnmark) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/commands/verify_email_test.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -345,3 +346,11 @@ func (m *mockVerifyEmailUserRepo) FindActiveByUserIDWithPagination(ctx context.C
 func (m *mockVerifyEmailUserRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockVerifyEmailUserRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockVerifyEmailUserRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/queries/get_todays_habits_test.go

@@ -1,6 +1,7 @@
 package queries
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"context"
 	"testing"
 	"time"
@@ -324,3 +325,11 @@ func TestGetTodaysHabitsHandler_CarryOverDisabled(t *testing.T) {
 		t.Fatalf("Expected 0 habits (no carry-over), got %d", len(results))
 	}
 }
+
+func (m *mockHabitRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockHabitRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/queries/get_user_habits.go

@@ -20,9 +20,17 @@ type HabitDTO struct {
 	SpecificDays []int
 }
 
+type FilterParams struct {
+	Type            *value_objects.HabitType
+	Frequency       *value_objects.Frequency
+	IncludeArchived bool
+	Search          string
+}
+
 type GetUserHabitsQuery struct {
 	UserID           string
 	PaginationParams *pagination.Params
+	FilterParams     *FilterParams
 }
 
 type GetUserHabitsResult struct {
@@ -45,7 +53,29 @@ func (h *GetUserHabitsHandler) Handle(ctx context.Context, query GetUserHabitsQu
 	var paginationResponse *pagination.Response
 	var err error
 
-	if query.PaginationParams != nil {
+	if query.FilterParams != nil {
+		filter := repositories.HabitFilter{
+			Type:            query.FilterParams.Type,
+			Frequency:       query.FilterParams.Frequency,
+			IncludeArchived: query.FilterParams.IncludeArchived,
+			Search:          query.FilterParams.Search,
+		}
+
+		habits, err = h.habitRepo.FindByUserIDFiltered(ctx, query.UserID, filter, query.PaginationParams)
+		if err != nil {
+			return nil, err
+		}
+
+		if query.PaginationParams != nil {
+			totalItems, err := h.habitRepo.CountByUserIDFiltered(ctx, query.UserID, filter)
+			if err != nil {
+				return nil, err
+			}
+
+			response := pagination.NewResponse(*query.PaginationParams, totalItems)
+			paginationResponse = &response
+		}
+	} else if query.PaginationParams != nil {
 		habits, err = h.habitRepo.FindActiveByUserIDWithPagination(ctx, query.UserID, *query.PaginationParams)
 		if err != nil {
 			return nil, err

internal/application/queries/get_user_habits_test.go

@@ -1,6 +1,7 @@
 package queries
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"context"
 	"testing"
 
@@ -277,3 +278,142 @@ func TestGetUserHabitsHandler_WithPagination(t *testing.T) {
 		}
 	})
 }
+
+func (m *mockGetUserHabitsRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	var filtered []*entities.Habit
+
+	for _, habit := range m.habits {
+		if filter.Type != nil && habit.Type != *filter.Type {
+			continue
+		}
+		if filter.Frequency != nil && habit.Frequency != *filter.Frequency {
+			continue
+		}
+		if !filter.IncludeArchived && habit.ArchivedAt != nil {
+			continue
+		}
+		filtered = append(filtered, habit)
+	}
+
+	if paginationParams != nil {
+		offset := paginationParams.Offset()
+		limit := paginationParams.Limit()
+
+		if offset >= len(filtered) {
+			return []*entities.Habit{}, nil
+		}
+
+		end := offset + limit
+		if end > len(filtered) {
+			end = len(filtered)
+		}
+
+		return filtered[offset:end], nil
+	}
+
+	return filtered, nil
+}
+
+func (m *mockGetUserHabitsRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	count := 0
+
+	for _, habit := range m.habits {
+		if filter.Type != nil && habit.Type != *filter.Type {
+			continue
+		}
+		if filter.Frequency != nil && habit.Frequency != *filter.Frequency {
+			continue
+		}
+		if !filter.IncludeArchived && habit.ArchivedAt != nil {
+			continue
+		}
+		count++
+	}
+
+	return count, nil
+}
+
+func TestGetUserHabitsHandler_WithFilters(t *testing.T) {
+	habit1 := entities.NewHabit("user-123", "Exercise", value_objects.HabitTypeBoolean, value_objects.FrequencyDaily, false, false)
+	habit1.ID = "habit-1"
+
+	habit2 := entities.NewHabit("user-123", "Read", value_objects.HabitTypeCounter, value_objects.FrequencyWeekly, false, false)
+	habit2.ID = "habit-2"
+
+	habit3 := entities.NewHabit("user-123", "Water", value_objects.HabitTypeValue, value_objects.FrequencyDaily, false, false)
+	habit3.ID = "habit-3"
+
+	habitRepo := &mockGetUserHabitsRepo{habits: []*entities.Habit{habit1, habit2, habit3}}
+	handler := NewGetUserHabitsHandler(habitRepo)
+
+	t.Run("FilterByType", func(t *testing.T) {
+		habitType := value_objects.HabitTypeBoolean
+		query := GetUserHabitsQuery{
+			UserID: "user-123",
+			FilterParams: &FilterParams{
+				Type: &habitType,
+			},
+		}
+
+		result, err := handler.Handle(context.Background(), query)
+		if err != nil {
+			t.Fatalf("Expected no error, got %v", err)
+		}
+
+		if len(result.Habits) != 1 {
+			t.Errorf("Expected 1 BOOLEAN habit, got %d", len(result.Habits))
+		}
+
+		if result.Habits[0].Type != value_objects.HabitTypeBoolean {
+			t.Errorf("Expected BOOLEAN type, got %s", result.Habits[0].Type)
+		}
+	})
+
+	t.Run("FilterByFrequency", func(t *testing.T) {
+		frequency := value_objects.FrequencyDaily
+		query := GetUserHabitsQuery{
+			UserID: "user-123",
+			FilterParams: &FilterParams{
+				Frequency: &frequency,
+			},
+		}
+
+		result, err := handler.Handle(context.Background(), query)
+		if err != nil {
+			t.Fatalf("Expected no error, got %v", err)
+		}
+
+		if len(result.Habits) != 2 {
+			t.Errorf("Expected 2 DAILY habits, got %d", len(result.Habits))
+		}
+	})
+
+	t.Run("FilterWithPagination", func(t *testing.T) {
+		frequency := value_objects.FrequencyDaily
+		params := pagination.NewParams(1, 1)
+		query := GetUserHabitsQuery{
+			UserID: "user-123",
+			FilterParams: &FilterParams{
+				Frequency: &frequency,
+			},
+			PaginationParams: &params,
+		}
+
+		result, err := handler.Handle(context.Background(), query)
+		if err != nil {
+			t.Fatalf("Expected no error, got %v", err)
+		}
+
+		if len(result.Habits) != 1 {
+			t.Errorf("Expected 1 habit on first page, got %d", len(result.Habits))
+		}
+
+		if result.Pagination == nil {
+			t.Fatal("Expected pagination metadata")
+		}
+
+		if result.Pagination.TotalItems != 2 {
+			t.Errorf("Expected 2 total DAILY habits, got %d", result.Pagination.TotalItems)
+		}
+	})
+}

internal/application/queries/login_user_test.go

@@ -1,6 +1,7 @@
 package queries
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -213,3 +214,11 @@ func (m *mockLoginUserRepo) FindActiveByUserIDWithPagination(ctx context.Context
 func (m *mockLoginUserRepo) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockLoginUserRepo) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockLoginUserRepo) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/application/queries/refresh_token_test.go

@@ -1,6 +1,7 @@
 package queries
 
 import (
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/pagination"
 	"context"
 	"testing"
@@ -283,3 +284,19 @@ func (m *mockUserRepositoryForRefresh) FindActiveByUserIDWithPagination(ctx cont
 func (m *mockUserRepositoryForRefresh) CountActiveByUserID(ctx context.Context, userID string) (int, error) {
 	return 0, nil
 }
+
+func (m *mockRefreshTokenRepository) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockRefreshTokenRepository) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}
+
+func (m *mockUserRepositoryForRefresh) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	return nil, nil
+}
+
+func (m *mockUserRepositoryForRefresh) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	return 0, nil
+}

internal/domain/repositories/habit_repository.go

@@ -4,16 +4,26 @@ import (
 	"context"
 
 	"apocapoc-api/internal/domain/entities"
+	"apocapoc-api/internal/domain/value_objects"
 	"apocapoc-api/internal/shared/pagination"
 )
 
+type HabitFilter struct {
+	Type            *value_objects.HabitType
+	Frequency       *value_objects.Frequency
+	IncludeArchived bool
+	Search          string
+}
+
 type HabitRepository interface {
 	Create(ctx context.Context, habit *entities.Habit) error
 	FindByID(ctx context.Context, id string) (*entities.Habit, error)
 	FindByUserID(ctx context.Context, userID string) ([]*entities.Habit, error)
 	FindActiveByUserID(ctx context.Context, userID string) ([]*entities.Habit, error)
 	FindActiveByUserIDWithPagination(ctx context.Context, userID string, params pagination.Params) ([]*entities.Habit, error)
+	FindByUserIDFiltered(ctx context.Context, userID string, filter HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error)
 	CountActiveByUserID(ctx context.Context, userID string) (int, error)
+	CountByUserIDFiltered(ctx context.Context, userID string, filter HabitFilter) (int, error)
 	Update(ctx context.Context, habit *entities.Habit) error
 	Delete(ctx context.Context, id string) error
 }

internal/infrastructure/http/habit_handlers.go

@@ -9,6 +9,7 @@ import (
 
 	"apocapoc-api/internal/application/commands"
 	"apocapoc-api/internal/application/queries"
+	"apocapoc-api/internal/domain/value_objects"
 	"apocapoc-api/internal/i18n"
 	"apocapoc-api/internal/shared/errors"
 	"apocapoc-api/internal/shared/pagination"
@@ -109,12 +110,16 @@ func (h *HabitHandlers) CreateHabit(w http.ResponseWriter, r *http.Request) {
 
 // GetUserHabits godoc
 // @Summary Get all user habits
-// @Description Get all active habits for the authenticated user with optional pagination
+// @Description Get all active habits for the authenticated user with optional pagination and filters
 // @Tags habits
 // @Produce json
 // @Security BearerAuth
 // @Param page query int false "Page number (default: 1)"
 // @Param page_size query int false "Page size (default: 50, max: 100)"
+// @Param type query string false "Filter by type (BOOLEAN, COUNTER, VALUE)"
+// @Param frequency query string false "Filter by frequency (DAILY, WEEKLY, MONTHLY)"
+// @Param archived query boolean false "Include archived habits (default: false)"
+// @Param search query string false "Search by name or description"
 // @Success 200 {object} GetUserHabitsResponse
 // @Failure 401 {object} ErrorResponse
 // @Failure 500 {object} ErrorResponse
@@ -153,6 +158,39 @@ func (h *HabitHandlers) GetUserHabits(w http.ResponseWriter, r *http.Request) {
 		query.PaginationParams = &params
 	}
 
+	typeStr := r.URL.Query().Get("type")
+	frequencyStr := r.URL.Query().Get("frequency")
+	archivedStr := r.URL.Query().Get("archived")
+	searchStr := r.URL.Query().Get("search")
+
+	if typeStr != "" || frequencyStr != "" || archivedStr != "" || searchStr != "" {
+		filterParams := &queries.FilterParams{}
+
+		if typeStr != "" {
+			habitType := value_objects.HabitType(typeStr)
+			if habitType.IsValid() {
+				filterParams.Type = &habitType
+			}
+		}
+
+		if frequencyStr != "" {
+			frequency := value_objects.Frequency(frequencyStr)
+			if frequency.IsValid() {
+				filterParams.Frequency = &frequency
+			}
+		}
+
+		if archivedStr == "true" {
+			filterParams.IncludeArchived = true
+		}
+
+		if searchStr != "" {
+			filterParams.Search = searchStr
+		}
+
+		query.FilterParams = filterParams
+	}
+
 	result, err := h.getUserHabitsHandler.Handle(r.Context(), query)
 	if err != nil {
 		respondErrorI18n(w, r, h.translator, http.StatusInternalServerError, "failed_get_habits")

internal/infrastructure/persistence/sqlite/habit_repository.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 
 	"apocapoc-api/internal/domain/entities"
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/shared/errors"
 	"apocapoc-api/internal/shared/pagination"
 
@@ -282,3 +283,93 @@ func (r *HabitRepository) CountActiveByUserID(ctx context.Context, userID string
 
 	return count, nil
 }
+
+func (r *HabitRepository) FindByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter, paginationParams *pagination.Params) ([]*entities.Habit, error) {
+	baseQuery := `
+		SELECT id, user_id, name, description, type, frequency,
+			   specific_days, specific_dates, carry_over, is_negative, target_value,
+			   created_at, archived_at
+		FROM habits
+		WHERE user_id = ?`
+
+	args := []interface{}{userID}
+	conditions := []string{}
+
+	if !filter.IncludeArchived {
+		conditions = append(conditions, "archived_at IS NULL")
+	}
+
+	if filter.Type != nil {
+		conditions = append(conditions, "type = ?")
+		args = append(args, string(*filter.Type))
+	}
+
+	if filter.Frequency != nil {
+		conditions = append(conditions, "frequency = ?")
+		args = append(args, string(*filter.Frequency))
+	}
+
+	if filter.Search != "" {
+		conditions = append(conditions, "(name LIKE ? OR description LIKE ?)")
+		searchPattern := "%" + filter.Search + "%"
+		args = append(args, searchPattern, searchPattern)
+	}
+
+	for _, condition := range conditions {
+		baseQuery += " AND " + condition
+	}
+
+	baseQuery += " ORDER BY created_at DESC"
+
+	if paginationParams != nil {
+		baseQuery += " LIMIT ? OFFSET ?"
+		args = append(args, paginationParams.Limit(), paginationParams.Offset())
+	}
+
+	rows, err := r.db.QueryContext(ctx, baseQuery, args...)
+	if err != nil {
+		return nil, fmt.Errorf("failed to find habits: %w", err)
+	}
+	defer rows.Close()
+
+	return r.scanHabits(rows)
+}
+
+func (r *HabitRepository) CountByUserIDFiltered(ctx context.Context, userID string, filter repositories.HabitFilter) (int, error) {
+	baseQuery := `SELECT COUNT(*) FROM habits WHERE user_id = ?`
+
+	args := []interface{}{userID}
+	conditions := []string{}
+
+	if !filter.IncludeArchived {
+		conditions = append(conditions, "archived_at IS NULL")
+	}
+
+	if filter.Type != nil {
+		conditions = append(conditions, "type = ?")
+		args = append(args, string(*filter.Type))
+	}
+
+	if filter.Frequency != nil {
+		conditions = append(conditions, "frequency = ?")
+		args = append(args, string(*filter.Frequency))
+	}
+
+	if filter.Search != "" {
+		conditions = append(conditions, "(name LIKE ? OR description LIKE ?)")
+		searchPattern := "%" + filter.Search + "%"
+		args = append(args, searchPattern, searchPattern)
+	}
+
+	for _, condition := range conditions {
+		baseQuery += " AND " + condition
+	}
+
+	var count int
+	err := r.db.QueryRowContext(ctx, baseQuery, args...).Scan(&count)
+	if err != nil {
+		return 0, fmt.Errorf("failed to count habits: %w", err)
+	}
+
+	return count, nil
+}

internal/infrastructure/persistence/sqlite/habit_repository_test.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"apocapoc-api/internal/domain/entities"
+	"apocapoc-api/internal/domain/repositories"
 	"apocapoc-api/internal/domain/value_objects"
 	"apocapoc-api/internal/shared/errors"
 	"apocapoc-api/internal/shared/pagination"
@@ -422,3 +423,213 @@ func TestHabitRepositoryCountActiveByUserID(t *testing.T) {
 		}
 	})
 }
+
+func TestHabitRepositoryFindByUserIDFiltered(t *testing.T) {
+	db := setupTestDB(t)
+	defer db.Close()
+
+	repo := NewHabitRepository(db)
+	ctx := context.Background()
+
+	userID := "user-filter-test"
+
+	habit1 := entities.NewHabit(userID, "Morning Exercise", value_objects.HabitTypeBoolean, value_objects.FrequencyDaily, false, false)
+	habit1.Description = "Daily morning workout"
+	repo.Create(ctx, habit1)
+	time.Sleep(1 * time.Millisecond)
+
+	habit2 := entities.NewHabit(userID, "Read Books", value_objects.HabitTypeCounter, value_objects.FrequencyWeekly, false, false)
+	habit2.Description = "Read at least 3 books per week"
+	repo.Create(ctx, habit2)
+	time.Sleep(1 * time.Millisecond)
+
+	habit3 := entities.NewHabit(userID, "Drink Water", value_objects.HabitTypeValue, value_objects.FrequencyDaily, false, false)
+	habit3.Description = "Drink 2 liters of water daily"
+	repo.Create(ctx, habit3)
+	time.Sleep(1 * time.Millisecond)
+
+	habit4 := entities.NewHabit(userID, "Weekly Run", value_objects.HabitTypeBoolean, value_objects.FrequencyWeekly, false, false)
+	repo.Create(ctx, habit4)
+	time.Sleep(1 * time.Millisecond)
+
+	now := time.Now()
+	habit4.ArchivedAt = &now
+	repo.Update(ctx, habit4)
+
+	t.Run("FilterByType", func(t *testing.T) {
+		habitType := value_objects.HabitTypeBoolean
+		filter := repositories.HabitFilter{
+			Type: &habitType,
+		}
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, nil)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 1 {
+			t.Errorf("Expected 1 active BOOLEAN habit, got %d", len(habits))
+		}
+
+		if habits[0].Type != value_objects.HabitTypeBoolean {
+			t.Errorf("Expected BOOLEAN type, got %s", habits[0].Type)
+		}
+	})
+
+	t.Run("FilterByFrequency", func(t *testing.T) {
+		frequency := value_objects.FrequencyDaily
+		filter := repositories.HabitFilter{
+			Frequency: &frequency,
+		}
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, nil)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 2 {
+			t.Errorf("Expected 2 DAILY habits, got %d", len(habits))
+		}
+	})
+
+	t.Run("FilterIncludeArchived", func(t *testing.T) {
+		filter := repositories.HabitFilter{
+			IncludeArchived: true,
+		}
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, nil)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 4 {
+			t.Errorf("Expected 4 habits (including archived), got %d", len(habits))
+		}
+	})
+
+	t.Run("FilterBySearch", func(t *testing.T) {
+		filter := repositories.HabitFilter{
+			Search: "Exercise",
+		}
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, nil)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 1 {
+			t.Errorf("Expected 1 habit matching 'Exercise', got %d", len(habits))
+		}
+
+		if habits[0].Name != "Morning Exercise" {
+			t.Errorf("Expected 'Morning Exercise', got %s", habits[0].Name)
+		}
+	})
+
+	t.Run("FilterBySearchInDescription", func(t *testing.T) {
+		filter := repositories.HabitFilter{
+			Search: "books",
+		}
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, nil)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 1 {
+			t.Errorf("Expected 1 habit matching 'books' in description, got %d", len(habits))
+		}
+	})
+
+	t.Run("CombineFilters", func(t *testing.T) {
+		habitType := value_objects.HabitTypeBoolean
+		frequency := value_objects.FrequencyWeekly
+		filter := repositories.HabitFilter{
+			Type:            &habitType,
+			Frequency:       &frequency,
+			IncludeArchived: true,
+		}
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, nil)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 1 {
+			t.Errorf("Expected 1 BOOLEAN WEEKLY habit (archived), got %d", len(habits))
+		}
+
+		if habits[0].Name != "Weekly Run" {
+			t.Errorf("Expected 'Weekly Run', got %s", habits[0].Name)
+		}
+	})
+
+	t.Run("WithPagination", func(t *testing.T) {
+		filter := repositories.HabitFilter{}
+		params := pagination.NewParams(1, 2)
+
+		habits, err := repo.FindByUserIDFiltered(ctx, userID, filter, &params)
+		if err != nil {
+			t.Fatalf("FindByUserIDFiltered failed: %v", err)
+		}
+
+		if len(habits) != 2 {
+			t.Errorf("Expected 2 habits on first page, got %d", len(habits))
+		}
+	})
+}
+
+func TestHabitRepositoryCountByUserIDFiltered(t *testing.T) {
+	db := setupTestDB(t)
+	defer db.Close()
+
+	repo := NewHabitRepository(db)
+	ctx := context.Background()
+
+	userID := "user-count-filter-test"
+
+	habit1 := entities.NewHabit(userID, "Test1", value_objects.HabitTypeBoolean, value_objects.FrequencyDaily, false, false)
+	repo.Create(ctx, habit1)
+
+	habit2 := entities.NewHabit(userID, "Test2", value_objects.HabitTypeCounter, value_objects.FrequencyDaily, false, false)
+	repo.Create(ctx, habit2)
+
+	habit3 := entities.NewHabit(userID, "Test3", value_objects.HabitTypeBoolean, value_objects.FrequencyWeekly, false, false)
+	now := time.Now()
+	habit3.ArchivedAt = &now
+	repo.Create(ctx, habit3)
+	repo.Update(ctx, habit3)
+
+	t.Run("CountByType", func(t *testing.T) {
+		habitType := value_objects.HabitTypeBoolean
+		filter := repositories.HabitFilter{
+			Type: &habitType,
+		}
+
+		count, err := repo.CountByUserIDFiltered(ctx, userID, filter)
+		if err != nil {
+			t.Fatalf("CountByUserIDFiltered failed: %v", err)
+		}
+
+		if count != 1 {
+			t.Errorf("Expected 1 active BOOLEAN habit, got %d", count)
+		}
+	})
+
+	t.Run("CountWithArchived", func(t *testing.T) {
+		habitType := value_objects.HabitTypeBoolean
+		filter := repositories.HabitFilter{
+			Type:            &habitType,
+			IncludeArchived: true,
+		}
+
+		count, err := repo.CountByUserIDFiltered(ctx, userID, filter)
+		if err != nil {
+			t.Fatalf("CountByUserIDFiltered failed: %v", err)
+		}
+
+		if count != 2 {
+			t.Errorf("Expected 2 BOOLEAN habits (including archived), got %d", count)
+		}
+	})
+}