import { create } from 'zustand';

export type CommunityCategory = 'all' | 'games' | 'domain_vote' | 'lyra' | 'rebreak';

export interface CommunityPostAuthor {
  id: string | null;
  username: string;
  nickname: string;
  avatar: string | null;
  plan: string;
  tier?: string;
}

export interface CommunityPost {
  id: string;
  category: string;
  content: string;
  imageUrl?: string | null;
  likesCount: number;
  dislikesCount: number;
  commentsCount: number;
  repostsCount: number;
  isAnonymous: boolean;
  createdAt: string;
  userLike: 'like' | 'dislike' | null;
  isBot?: boolean;
  botType?: 'lyra' | 'rebreak';
  gameName?: string | null;
  challengeId?: string | null;
  challengeStatus?: 'OPEN' | 'ACTIVE' | 'FINISHED' | 'CANCELLED' | null;
  opponentName?: string | null;
  isLive?: boolean;
  i18nKey?: string | null;
  userVote?: 'yes' | 'no' | null;
  submission?: {
    id: string;
    domain: string;
    status: 'pending' | 'approved' | 'rejected' | 'in_review';
    yesVotes: number;
    noVotes: number;
    reviewedAt?: string | null;
    yesVoters?: Array<{ id: string; nickname: string; avatar: string | null }>;
    noVoters?: Array<{ id: string; nickname: string; avatar: string | null }>;
  } | null;
  author: CommunityPostAuthor;
  repostOf?: {
    author: CommunityPostAuthor;
    content: string;
    imageUrl?: string | null;
  } | null;
}

export interface CommunityComment {
  id: string;
  content: string;
  createdAt: string;
  parentCommentId: string | null;
  authorNickname: string;
  authorAvatar: string | null;
  authorId: string | null;
  likesCount: number;
  userLike: boolean;
}

type CommunityState = {
  activeCategory: CommunityCategory;
  setCategory: (cat: CommunityCategory) => void;
  optimisticLikes: Record<string, { delta: number; userLike: 'like' | null }>;
  applyOptimisticLike: (postId: string, currentLike: 'like' | null, currentCount: number) => { newLike: 'like' | null; newCount: number };
  revertOptimisticLike: (postId: string) => void;
  clearOptimisticLike: (postId: string) => void;
};

export const useCommunityStore = create<CommunityState>((set, get) => ({
  activeCategory: 'all',
  optimisticLikes: {},

  setCategory: (cat) => set({ activeCategory: cat }),

  applyOptimisticLike: (postId, currentLike, currentCount) => {
    const isLiked = currentLike === 'like';
    const newLike: 'like' | null = isLiked ? null : 'like';
    const newCount = isLiked ? Math.max(0, currentCount - 1) : currentCount + 1;
    set((s) => ({
      optimisticLikes: {
        ...s.optimisticLikes,
        [postId]: { delta: newCount - currentCount, userLike: newLike },
      },
    }));
    return { newLike, newCount };
  },

  revertOptimisticLike: (postId) => {
    set((s) => {
      const { [postId]: _, ...rest } = s.optimisticLikes;
      return { optimisticLikes: rest };
    });
  },

  clearOptimisticLike: (postId) => {
    set((s) => {
      const { [postId]: _, ...rest } = s.optimisticLikes;
      return { optimisticLikes: rest };
    });
  },
}));