/**
 * 用户统计响应
 * 原始 Dart: UserStatsResponse (lib/data/models/user/user_stats_response.dart)
 */
import { z } from "zod";
import {
  PersonalityTraits,
  PERSONALITY_TRAITS_DEFAULTS,
  PersonalityTraitsSchema,
} from "./personality_traits";
import { RecentMemory, RecentMemorySchema } from "./recent_memory";

export const UserStatsResponseSchema = z.object({
  userId: z.string(),
  username: z.string(),
  platform: z.string(),
  intimacy: z.number(),
  relationshipStage: z.string(),
  dolBalance: z.number(),
  totalMessages: z.number(),
  lastMessageAt: z.string().default(""),
  accountCreatedAt: z.string().default(""),
  currentMood: z.string().default(""),
  personalityTraits: PersonalityTraitsSchema.default(
    PERSONALITY_TRAITS_DEFAULTS
  ),
  recentMemories: z.array(RecentMemorySchema).default([]),
  promptTokensTotal: z.number().default(0),
  completionTokensTotal: z.number().default(0),
  cacheHitTokensTotal: z.number().default(0),
  tokensTotal: z.number().default(0),
});

export type UserStatsResponseInput = z.input<typeof UserStatsResponseSchema>;
export type UserStatsResponseData = z.output<typeof UserStatsResponseSchema>;

export class UserStatsResponse {
  declare readonly userId: string;
  declare readonly username: string;
  declare readonly platform: string;
  declare readonly intimacy: number;
  declare readonly relationshipStage: string;
  declare readonly dolBalance: number;
  declare readonly totalMessages: number;
  declare readonly lastMessageAt: string;
  declare readonly accountCreatedAt: string;
  declare readonly currentMood: string;
  declare readonly personalityTraits: PersonalityTraits;
  declare readonly recentMemories: RecentMemory[];
  declare readonly promptTokensTotal: number;
  declare readonly completionTokensTotal: number;
  declare readonly cacheHitTokensTotal: number;
  declare readonly tokensTotal: number;

  private constructor(data: UserStatsResponseData) {
    Object.assign(this, data);
    Object.freeze(this);
  }

  static from(input: UserStatsResponseInput): UserStatsResponse {
    return new UserStatsResponse(UserStatsResponseSchema.parse(input));
  }

  static fromJson(json: unknown): UserStatsResponse {
    return UserStatsResponse.from(json as UserStatsResponseInput);
  }

  toJson(): UserStatsResponseData {
    return UserStatsResponseSchema.parse(this);
  }
}