Initial commit

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-21 15:03:55 +01:00
commit dfd66e43c6
78 changed files with 6219 additions and 0 deletions
--- a/backend/internal/store/exercise_store.go
+++ b/backend/internal/store/exercise_store.go
@@ -0,0 +1,105 @@
+package store
+
+import (
+	"database/sql"
+	"fmt"
+	"krafttrainer/internal/model"
+)
+
+// ListExercises gibt alle nicht-gelöschten Übungen zurück, optional gefiltert.
+func (s *Store) ListExercises(muscleGroup, query string) ([]model.Exercise, error) {
+	rows, err := s.db.Query(`
+		SELECT id, name, description, muscle_group, weight_step_kg, created_at, updated_at
+		FROM exercises
+		WHERE deleted_at IS NULL
+		  AND (muscle_group = ? OR ? = '')
+		  AND (name LIKE '%' || ? || '%' OR ? = '')
+		ORDER BY name`,
+		muscleGroup, muscleGroup, query, query,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("Übungen abfragen: %w", err)
+	}
+	defer rows.Close()
+
+	var exercises []model.Exercise
+	for rows.Next() {
+		var e model.Exercise
+		if err := rows.Scan(&e.ID, &e.Name, &e.Description, &e.MuscleGroup, &e.WeightStepKg, &e.CreatedAt, &e.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("Übung scannen: %w", err)
+		}
+		exercises = append(exercises, e)
+	}
+	if exercises == nil {
+		exercises = []model.Exercise{}
+	}
+	return exercises, rows.Err()
+}
+
+// GetExercise gibt eine einzelne Übung zurück.
+func (s *Store) GetExercise(id int64) (*model.Exercise, error) {
+	var e model.Exercise
+	err := s.db.QueryRow(`
+		SELECT id, name, description, muscle_group, weight_step_kg, created_at, updated_at, deleted_at
+		FROM exercises WHERE id = ?`, id,
+	).Scan(&e.ID, &e.Name, &e.Description, &e.MuscleGroup, &e.WeightStepKg, &e.CreatedAt, &e.UpdatedAt, &e.DeletedAt)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, fmt.Errorf("Übung abfragen: %w", err)
+	}
+	return &e, nil
+}
+
+// CreateExercise legt eine neue Übung an und gibt sie zurück.
+func (s *Store) CreateExercise(req *model.CreateExerciseRequest) (*model.Exercise, error) {
+	result, err := s.db.Exec(`
+		INSERT INTO exercises (name, description, muscle_group, weight_step_kg)
+		VALUES (?, ?, ?, ?)`,
+		req.Name, req.Description, req.MuscleGroup, *req.WeightStepKg,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("Übung erstellen: %w", err)
+	}
+
+	id, _ := result.LastInsertId()
+	return s.GetExercise(id)
+}
+
+// UpdateExercise aktualisiert eine Übung und gibt sie zurück.
+func (s *Store) UpdateExercise(id int64, req *model.CreateExerciseRequest) (*model.Exercise, error) {
+	result, err := s.db.Exec(`
+		UPDATE exercises
+		SET name = ?, description = ?, muscle_group = ?, weight_step_kg = ?,
+		    updated_at = CURRENT_TIMESTAMP
+		WHERE id = ? AND deleted_at IS NULL`,
+		req.Name, req.Description, req.MuscleGroup, *req.WeightStepKg, id,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("Übung aktualisieren: %w", err)
+	}
+
+	rows, _ := result.RowsAffected()
+	if rows == 0 {
+		return nil, nil
+	}
+	return s.GetExercise(id)
+}
+
+// SoftDeleteExercise markiert eine Übung als gelöscht.
+func (s *Store) SoftDeleteExercise(id int64) error {
+	result, err := s.db.Exec(`
+		UPDATE exercises SET deleted_at = CURRENT_TIMESTAMP, updated_at = CURRENT_TIMESTAMP
+		WHERE id = ? AND deleted_at IS NULL`, id,
+	)
+	if err != nil {
+		return fmt.Errorf("Übung löschen: %w", err)
+	}
+
+	rows, _ := result.RowsAffected()
+	if rows == 0 {
+		return sql.ErrNoRows
+	}
+	return nil
+}