WorkoutToJsonAdapter.java

package de.avalax.fitbuddy.port.adapter.service;

import com.google.gson.Gson;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import de.avalax.fitbuddy.domain.model.exercise.Exercise;
import de.avalax.fitbuddy.domain.model.set.Set;
import de.avalax.fitbuddy.domain.model.workout.Workout;

public class WorkoutToJsonAdapter {
    private Gson gson = new Gson();

    public String fromWorkout(Workout workout) {
        Collection<Object> collection = new ArrayList<>();
        collection.add(workout.getName());
        List<Object> exercises = new ArrayList<>();
        for (Exercise exercise : workout.getExercises()) {
            exercises.add(fromExercise(exercise));
        }
        collection.add(exercises);
        return gson.toJson(collection);
    }

    private List<Object> fromExercise(Exercise exercise) {
        List<Object> exportedExercise = new ArrayList<>();
        exportedExercise.add(exercise.getName());
        List<Object> sets = new ArrayList<>();
        for (Set set : exercise.getSets()) {
            sets.add(fromSet(set));
        }
        exportedExercise.add(sets);
        return exportedExercise;
    }

    private List<Object> fromSet(Set set) {
        List<Object> s = new ArrayList<>();
        s.add(set.getWeight());
        s.add(set.getMaxReps());
        return s;
    }
}