import { IHttpClient } from '@/common/http';
import { IJoliCoin, IGem } from '@/common/rewards/type';
import { IUnlockOptionsEvent } from '@/common/rewards/reward-emitter';
import { fetchBalance as fetchJoliCoinBalance } from '../jolicoin/fetch-balance';
import { fetchGemBalance } from '../joligem/fetch-gem-balance';

export type CurrencyType = 'JOLI_COIN' | 'JOLI_GEM';

export interface CurrencyHandler {
  fetchBalance: (httpClient: IHttpClient) => Promise<{ balance: number } | undefined>;
  getQuantity: (unlockOptions: IUnlockOptionsEvent | null) => number;
  getCurrentUser: (unlockOptions: IUnlockOptionsEvent | null) => IJoliCoin | IGem;
  createUpdatedUser: (balance: number, enableAutoDeduct: boolean) => IJoliCoin | IGem;
  getUpdateKey: () => keyof Pick<IUnlockOptionsEvent, 'userJoliCoin' | 'userGem'>;
  isEnough: (unlockOptions: IUnlockOptionsEvent | null, user: IJoliCoin | IGem) => boolean;
}

export const CURRENCY_HANDLERS: Record<CurrencyType, CurrencyHandler> = {
  JOLI_COIN: {
    fetchBalance: fetchJoliCoinBalance,
    getQuantity: (unlockOptions) =>
      unlockOptions?.options?.find((option) => option.type === 'JOLI_COIN')?.joliCoinChoices[0]
        .joliCoinQuantity ?? 0,
    getCurrentUser: (unlockOptions) => unlockOptions?.userJoliCoin ?? { balance: 0, enableAutoDeduct: false },
    createUpdatedUser: (balance, enableAutoDeduct) => ({ balance, enableAutoDeduct }),
    getUpdateKey: () => 'userJoliCoin',
    isEnough: (unlockOptions, user) =>
      unlockOptions?.options?.some(
        (option) =>
          option.type === 'JOLI_COIN' &&
          option.joliCoinChoices.some((choice) => choice.joliCoinQuantity <= (user?.balance ?? 0))
      ) ?? false
  },
  JOLI_GEM: {
    fetchBalance: fetchGemBalance,
    getQuantity: (unlockOptions) =>
      unlockOptions?.options?.find((option) => option.type === 'JOLI_GEM')?.joliGemChoice?.joliGemQuantity ??
      0,
    getCurrentUser: (unlockOptions) => unlockOptions?.userGem ?? { balance: 0, enableAutoDeduct: false },
    createUpdatedUser: (balance, enableAutoDeduct) => ({ balance, enableAutoDeduct }),
    getUpdateKey: () => 'userGem',
    isEnough: (unlockOptions, user) => {
      const joliGemConfig = unlockOptions?.options.find((option) => option.type === 'JOLI_GEM');
      if (joliGemConfig) {
        return (joliGemConfig.joliGemChoice?.joliGemQuantity ?? 0) <= (user?.balance ?? 0);
      }
      return false;
    }
  }
};