import {CombatEntity, EffectTable} from "./types";
import {EffectData} from "@/samples/slay-the-spire-like/system/types";
import {PlayerEntity} from "@/samples/slay-the-spire-like/system/combat/types";

export function addEffect(effects: EffectTable, effect: EffectData, stacks: number){
    let current = effects[effect.id];
    
    if(!current) current = {data: effect, stacks};
    else current.stacks += stacks;
    
    if(current.stacks === 0 && effects[effect.id])
        delete effects[effect.id];
    else if(current.stacks !== 0 && !effects[effect.id])
        effects[effect.id] = current;
}

export function addEntityEffect(entity: CombatEntity, effect: EffectData, stacks: number){
    addEffect(entity.effects, effect, stacks);
}

export function addItemEffect(entity: PlayerEntity, itemKey: string, effect: EffectData, stacks: number){
    entity.itemEffects[itemKey] = entity.itemEffects[itemKey] || {};
    addEffect(entity.itemEffects[itemKey], effect, stacks);
}

export function onEntityEffectUpkeep(entity: CombatEntity){
    for(const effect of Object.values(entity.effects)){
        const lifecycle = effect.data.lifecycle;
        if(lifecycle === 'temporary')
            addEntityEffect(entity, effect.data, -effect.stacks);
        else if(lifecycle === 'lingering')
            addEntityEffect(entity, effect.data, effect.stacks >= 0 ? -1 : 1);
    }
}

export function onPlayerItemEffectUpkeep(entity: PlayerEntity){
    for(const [itemKey, itemEffects] of Object.entries(entity.itemEffects)){
        for(const effect of Object.values(itemEffects)){
            const lifecycle = effect.data.lifecycle;
            if(lifecycle === 'itemTemporary')
                addItemEffect(entity, itemKey, effect.data, -effect.stacks);
        }
    }
}

// TODO
export function onDraw(entity: PlayerEntity, cardId:string ){}
// TODO
export function onDiscard(entity: PlayerEntity, cardId: string){}