import type { EntityId } from 'db://assets/mx/module/battle';
import type { Vec3 } from 'cc';
import { BattleBuffCarryStore } from '../../manager/battleBuff/BattleBuffCarryStore';
import { rollCarriedKillCoinBonus } from '../../manager/battleBuff/BattleBuffPassiveSkillUtil';
import type { ProjectBattleHandle } from '../../battle/runtime/BattleRuntime';

/**
 * 赏金令：击杀小怪概率额外金币飞币表现。
 */
export class BattleGameKillPeachPresenter {
    private _battle: ProjectBattleHandle | null = null;
    private _playLocalCoinFly: ((fromWorld: Readonly<Vec3>, amount: number) => void) | null = null;
    private _resolveDeathWorldPos: ((victim: EntityId) => Vec3 | null) | null = null;

    /**
     * 绑定击杀事件上下文。
     * @param battle 战斗
     * @param playLocalCoinFly 本机飞币（挂起 UI，到达后刷新）
     * @param resolveDeathWorldPos 死亡世界坐标
     */
    bind(
        battle: ProjectBattleHandle,
        playLocalCoinFly: (fromWorld: Readonly<Vec3>, amount: number) => void,
        resolveDeathWorldPos: (victim: EntityId) => Vec3 | null,
    ): void {
        this.unbind();
        this._battle = battle;
        this._playLocalCoinFly = playLocalCoinFly;
        this._resolveDeathWorldPos = resolveDeathWorldPos;
    }

    /** 解除绑定 */
    unbind(): void {
        this._battle = null;
        this._playLocalCoinFly = null;
        this._resolveDeathWorldPos = null;
    }

    /**
     * EntityKilled：本机赏金令额外金币。
     * @param killer 击杀者
     * @param victim 死亡实体
     */
    onEntityKilled(killer: EntityId, victim: EntityId): void {
        const battle = this._battle;
        if (!battle) return;
        if (!battle.isSmallMonsterVictim(victim)) return;
        const ownerId = battle.resolveKillPeachOwnerPlayerId(killer, victim);
        if (ownerId !== battle.localPlayerId) return;
        const bonus = rollCarriedKillCoinBonus(BattleBuffCarryStore.getPassives(ownerId));
        if (bonus <= 0) return;
        battle.addPlayerGold(ownerId, bonus);
        const from = this._resolveDeathWorldPos?.(victim);
        if (!from) {
            console.log('[KillCoin] 击杀额外金币无死亡坐标', victim);
            return;
        }
        this._playLocalCoinFly?.(from, bonus);
    }
}