use crate::{combat, comp};
use serde::{Deserialize, Serialize};

/// An effect that may be applied to an entity
#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
pub enum Effect {
    Health(comp::HealthChange),
    Xp(i64),
    Damage(combat::Damage),
}

impl Effect {
    pub fn info(&self) -> String {
        match self {
            Effect::Health(c) => format!("{:+} health", c.amount),
            Effect::Xp(n) => format!("{:+} exp", n),
            Effect::Damage(d) => format!("{:+}", d.value),
        }
    }

    pub fn modify_strength(&mut self, modifier: f32) {
        match self {
            Effect::Health(change) => {
                change.amount = (change.amount as f32 * modifier) as i32;
            },
            Effect::Xp(amount) => {
                *amount = (*amount as f32 * modifier) as i64;
            },
            Effect::Damage(damage) => {
                damage.interpolate_damage(modifier, 0.0);
            },
        }
    }
}