import type { Artist, ArtistTag } from "@/types/artist";

const STAGE_NAMES: Array<[string, string, string]> = [
  ["艺奈", "AURORA", "破晓极光"],
  ["路米", "LUMI", "暖光治愈"],
  ["星澪", "NEBULA", "星云吟唱"],
  ["凯", "KAI", "海岸少年"],
  ["回音", "ECHO", "声波女王"],
  ["薇尔", "VEIL", "薄雾低语"],
  ["艾莉雅", "ARIA", "咏叹之声"],
  ["怜", "REN", "莲华少女"],
  ["米拉", "MIRA", "镜面舞者"],
  ["诺娃", "NOVA", "超新星"],
  ["纪罗", "KIRO", "Rap 制造机"],
  ["瑞", "ZUI", "醉月夜"],
  ["阳", "SOL", "阳光少年"],
  ["凛", "LIN", "学院偶像"],
  ["律", "LYRA", "竖琴公主"],
  ["昕", "DAWN", "晨曦少女"],
  ["天", "SKY", "天空之翼"],
  ["语", "ARIE", "诗与远方"],
  ["翼", "WING", "飞翔之翼"],
  ["铃", "CHIME", "风铃声"],
  ["夜", "NYX", "暗夜女神"],
  ["晴", "SUNNY", "晴空万里"],
  ["月", "LUNA", "月光女神"],
  ["岚", "STORM", "暴风之子"],
  ["雷", "BOLT", "雷霆速度"],
  ["焰", "FLARE", "火焰之心"],
  ["雪", "FROST", "霜花少女"],
  ["林", "LEAF", "森林精灵"],
  ["渊", "ABYSS", "深渊之声"],
  ["瑶", "JADE", "翡翠少女"],
  ["晨", "AURIA", "金色晨光"],
  ["岩", "ROCK", "硬核摇滚"],
  ["翔", "SOAR", "翱翔天际"],
  ["茉", "MOLLY", "茉莉芬芳"],
  ["梓", "AZUR", "蓝调诗人"],
];

// 4 个新主标签均匀分布。每位艺人 1-2 个标签，便于筛选器命中。
const TAG_POOL: ArtistTag[][] = [
  ["vocal"],
  ["dance"],
  ["all-rounder"],
  ["rap"],
  ["vocal", "all-rounder"],
  ["dance", "all-rounder"],
  ["rap", "all-rounder"],
  ["vocal"],
  ["dance"],
  ["all-rounder"],
  ["rap"],
  ["vocal", "dance"],
];

const THEME_COLORS = [
  "#8b5cf6",
  "#ec4899",
  "#06b6d4",
  "#f59e0b",
  "#10b981",
  "#ef4444",
  "#a78bfa",
  "#f472b6",
  "#38bdf8",
  "#fbbf24",
  "#34d399",
  "#fb7185",
];

/** 生成确定性 35 位艺人 mock 数据 */
function buildArtists(): Artist[] {
  return STAGE_NAMES.map(([name, enName, slogan], idx) => {
    const no = String(idx + 1).padStart(3, "0");
    const rank = idx + 1;
    // 票数采用反比例衰减（确定性 · 避免 SSR/CSR hydration 不一致）
    // 主曲线：125000/√rank · 用 idx 推导抖动量保持稳定分布
    const jitter = ((idx * 1103) % 2999) - 1499;
    const votes = Math.round(125000 / Math.sqrt(rank) + jitter);

    return {
      id: no,
      no,
      name,
      enName,
      slogan,
      bio: `来自虚拟星域的偶像候选人 ${enName}，从小热爱音乐与舞蹈。性格${
        rank % 2 === 0 ? "温柔" : "活泼"
      }，擅长${
        idx % 3 === 0 ? "抒情曲" : idx % 3 === 1 ? "舞台表演" : "Rap 创作"
      }。曾获得多项虚拟偶像新人奖项，代表作品深受粉丝喜爱。立志成为 Top12 出道阵容的一员，用音乐传递梦想与力量。`,
      portrait: "",
      avatar: "",
      gallery: ["", "", "", "", ""],
      videoUrl: undefined,
      videoPoster: "",
      tags: TAG_POOL[idx % TAG_POOL.length]!,
      birthday: `${String(((idx * 7) % 12) + 1).padStart(2, "0")}-${String(
        ((idx * 13) % 28) + 1
      ).padStart(2, "0")}`,
      height: 158 + (idx % 12),
      cv: idx < 12 ? `CV 配音 #${idx + 1}` : undefined,
      themeColor: THEME_COLORS[idx % THEME_COLORS.length]!,
      votes,
      rank,
    };
  });
}

export const ARTISTS: Artist[] = buildArtists();

export const TOP_12 = ARTISTS.slice(0, 12);
export const CANDIDATES = ARTISTS.slice(12);

/** 按当前排序方式获取艺人列表 */
export type SortKey = "votes" | "no" | "recent";
export function sortArtists(list: Artist[], key: SortKey = "votes"): Artist[] {
  const sorted = [...list];
  if (key === "votes") sorted.sort((a, b) => b.votes - a.votes);
  else if (key === "no") sorted.sort((a, b) => a.no.localeCompare(b.no));
  return sorted;
}

/** 按 ID 获取艺人 */
export function getArtist(id: string): Artist | undefined {
  return ARTISTS.find((a) => a.id === id);
}

/** 活动结束时间（mock：当前日期 + 12 天） */
export function getActivityEndTime(): Date {
  const end = new Date();
  end.setDate(end.getDate() + 12);
  end.setHours(end.getHours() + 3);
  end.setMinutes(end.getMinutes() + 24);
  end.setSeconds(end.getSeconds() + 18);
  return end;
}