package com.projectsacrifice.game;

/** Deterministic per-level runtime clock for one immutable hazard definition. */
public final class HazardRuntime {
    private final LevelDefinition.Hazard definition;
    private float elapsedSeconds;

    public HazardRuntime(LevelDefinition.Hazard definition) {
        if (definition == null) throw new IllegalArgumentException("definition is required");
        this.definition = definition;
    }

    public LevelDefinition.Hazard definition() { return definition; }
    public float elapsedSeconds() { return elapsedSeconds; }

    public void update(float deltaSeconds) {
        if (!Float.isFinite(deltaSeconds) || deltaSeconds < 0f) {
            throw new IllegalArgumentException("deltaSeconds must be finite and non-negative");
        }
        elapsedSeconds += deltaSeconds;
        if (definition.cycleSeconds > 0f && elapsedSeconds >= definition.cycleSeconds) {
            elapsedSeconds %= definition.cycleSeconds;
        }
    }

    public boolean active() {
        boolean cyclicWindow = definition.type == LevelDefinition.HazardType.CRUSHER
                || definition.type == LevelDefinition.HazardType.EXPLOSION;
        if (!cyclicWindow || definition.cycleSeconds <= 0f
                || definition.activeSeconds <= 0f) return true;
        return elapsedSeconds < definition.activeSeconds;
    }

    public LevelDefinition.Box currentBox() {
        if (definition.type != LevelDefinition.HazardType.PROJECTILE) {
            return definition.box;
        }
        return new LevelDefinition.Box(
                definition.box.x + definition.speedX * elapsedSeconds,
                definition.box.y + definition.speedY * elapsedSeconds,
                definition.box.width, definition.box.height);
    }

    public void reset() {
        elapsedSeconds = 0f;
    }
}