package cz.davza.studentadventure.objects;
/**
 * A single bounded numeric stat for the player (e.g. energy, stress, intelligence).
 *
 * <p>Values are always clamped to the range [{@value #MIN}, {@value #MAX}].
 * Use {@link #increase(int)} and {@link #decrease(int)} to modify the value;
 * both internally call the same clamp so negative amounts are handled safely
 * by whichever direction is semantically appropriate.</p>
 */
public class PlayerStat {
    private final String name;
    private int value;
    private static final int MIN = 0;
    private static final int MAX = 100;
    /**
     * Creates a new stat with the given name and initial value.
     * The initial value is clamped to [{@value #MIN}, {@value #MAX}].
     *
     * @param name         the stat's display name (e.g. {@code "Energy"})
     * @param initialValue the starting value
     */
    public PlayerStat(String name, int initialValue) {
        this.name = name;
        this.value = clamp(initialValue);
    }
    /**
     * Increases the stat by {@code amount}, clamped at {@value #MAX}.
     *
     * @param amount the amount to add (should be positive)
     */
    public void increase(int amount) {
        this.value = clamp(this.value + amount);
    }
    /**
     * Decreases the stat by {@code amount}, clamped at {@value #MIN}.
     *
     * @param amount the amount to subtract (should be positive)
     */
    public void decrease(int amount) {
        this.value = clamp(this.value - amount);
    }
    /**
     * Returns the current value of this stat.
     *
     * @return a value in the range [{@value #MIN}, {@value #MAX}]
     */
    public int getValue() { return value; }
    /**
     * Returns the display name of this stat.
     *
     * @return the stat name
     */
    public String getName() { return name; }

    private int clamp(int val) {
        return Math.max(MIN, Math.min(MAX, val));
    }
    /**
     * Returns a human-readable representation in the form {@code "Name: value/100"}.
     *
     * @return formatted stat string
     */
    @Override
    public String toString() {
        return name + ": " + value + "/100";
    }
}