[BE/FEAT] 식사 등록 단위에 따른 식사 등록 및 분석 로직 개선

[hwangdaesun]

📌관련 이슈

closes #639

🔑 주요 변경사항

MEAL_FOOD_TB에 MEAL_FOOD_UNIT_TYPE 칼럼을 추가해 단위별 측정 단위를 명확하게 구분하도록 수정 (기존에는 각 단위가 null임을 사용하여 판별)

기존에는 MealStrategy 인터페이스를 사용해 측정 전략을 관리했으나 측정 방식이 늘어남에 따라 구현체들이 많아져 관리가 힘들어짐. 따라서, UnitType Enum을 사용하여 단위별 측정 전략을 직접 관리하도록 수정

변경 전)

public interface MeasureStrategy {
    double measure(double nutrients, Unit unit, double servingSize);
}

public class GStrategy implements MeasureStrategy {
    @Override
    public double measure(double nutrients, Unit unit, double servingSize) {
        return (unit.getG() / servingSize) * nutrients;
    }
}

public class MultipleStrategy implements MeasureStrategy {
    @Override
    public double measure(double nutrients, Unit unit, double servingSize) {
        return nutrients * unit.getMultiple();
    }
}

변경 후)

public enum UnitType {
    G {
        @Override
        public double measure(double nutrients, Unit unit, double servingSize) {
            return (unit.getG() / servingSize) * nutrients;
        }
    },
    MULTIPLE {
        @Override
        public double measure(double nutrients, Unit unit, double servingSize) {
            return nutrients * unit.getMultiple();
        }
    };

    abstract double measure(double nutrients, Unit unit, double servingSize);
}

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[github-actions]

Overall Project	NaN% NaN%	🍏

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