export type HomeTeamBuilding = {
  id: string;
  tag: string;
  title: string;
  description: string;
  image: string;
  demandKeyword: string;
  detailSubtitle: string;
  detailParagraphs: string[];
};

export type HomeTeamBuildingApiItem = {
  id?: string | null;
  tag?: string | null;
  title?: string | null;
  description?: string | null;
  image?: string | null;
  demandKeyword?: string | null;
  detailSubtitle?: string | null;
  detailParagraphs?: string[] | null;
  isActive?: boolean | null;
  sortOrder?: number | null;
};

export type HomeTeamBuildings = HomeTeamBuildingApiItem[];

export const homeTeamBuildingMocks: HomeTeamBuilding[] = [
  {
    id: "wild-challenge",
    tag: "户外挑战",
    title: "山野挑战，共创极境",
    description: "洞穴、瀑降与协作，适合 10-30 人。",
    image: "https://dimg04.c-ctrip.com/images/1mh0412000njfr1ot9453_W_640_10000.jpg?proc=autoorient",
    demandKeyword: "户外团建",
    detailSubtitle: "越过山丘，向来处去",
    detailParagraphs: [
      "真正的贵州，从未被写进流水线的攻略里。洞穴、瀑降、峡谷和村寨，都是团队一起重新认识彼此的方式。",
      "当所有人都在熟悉的点里寻找同一个机位，我们换一条路，去看真正的贵州。",
      "我们是一群生于斯、长于斯的地坪探索者，也是对体验和美学有高偏好的本地旅行人。",
      "十年的时间，我们用影像和脚步寻找贵州的小众特色目的地，把贵州在社交媒体分享给全世界。",
      "我们深知这片土地的魅力，绝不仅是走马观花的打卡。它藏在高山峡谷的边缘感中，也藏在溶洞和地心暗河的回音里。",
      "去喀斯特洞河里释放野性，去无名山野间寻找宁静，把未知的风险与沿途的惊艳交给最强悍的团队兜底。",
      "越过山丘，向来处去，有深度，有记录，有趣。如果想解锁贵州这段独特的旅行，欢迎与野呀团队一起，解锁贵州。",
    ],
  },
  {
    id: "canyon-teamwork",
    tag: "团队协作",
    title: "峡谷溯溪，默契同行",
    description: "溯溪与分组协作，兼顾参与感与安全。",
    image: "https://dimg04.c-ctrip.com/images/0EQ5712000ca7t504EC0E_W_640_10000.jpg?proc=autoorient",
    demandKeyword: "峡谷团建",
    detailSubtitle: "在峡谷里重新认识彼此",
    detailParagraphs: [
      "把会议室换成溪流和峡谷，让团队在共同完成一段路的过程中自然建立默契。",
      "从分组协作到沿途探索，每个人都能找到自己的节奏，也能看见同伴身上不一样的力量。",
      "这是一场有挑战、有风景，也留得下故事的团队共创。",
    ],
  },
  {
    id: "village-gathering",
    tag: "人文聚会",
    title: "苗寨共聚，认识彼此",
    description: "夜游、长桌宴与文化体验，适合团建收尾。",
    image: "https://p6.itc.cn/q_70/images03/20200918/df728d2b79d943da869333e2ea2c92c8.jpeg",
    demandKeyword: "贵州团建",
    detailSubtitle: "在山野与人文之间共创一席",
    detailParagraphs: [
      "走进村寨，和当地的人打个照面，再围坐在长桌旁分享一天的见闻。团队关系，往往在这些没有安排的时刻里变得更近。",
      "夜游、长桌宴与文化体验，为一次团建留下温度，也为下一次共同出发埋下期待。",
    ],
  },
];

export const homeTeamBuildingFallback = homeTeamBuildingMocks;

export function normalizeHomeTeamBuildings(
  items: HomeTeamBuildings | null | undefined,
): HomeTeamBuilding[] {
  const fallback = homeTeamBuildingFallback.map((item) => ({ ...item }));
  const activeItems = (items ?? [])
    .map((item, index) => ({ item, index }))
    .filter(({ item }) => item.isActive !== false && Boolean(normalizeText(item.title)))
    .sort(
      (left, right) =>
        (left.item.sortOrder ?? left.index) - (right.item.sortOrder ?? right.index),
    );

  if (!activeItems.length) return fallback;

  return activeItems.map(({ item }, index) => {
    const fallbackItem = homeTeamBuildingFallback.find((candidate) => candidate.id === item.id)
      ?? homeTeamBuildingFallback[index]
      ?? homeTeamBuildingFallback[0];
    const title = normalizeText(item.title) || fallbackItem.title;
    return {
      id: normalizeText(item.id) || fallbackItem.id,
      tag: normalizeText(item.tag) || fallbackItem.tag,
      title,
      description: normalizeText(item.description) || fallbackItem.description,
      image: normalizeText(item.image) || fallbackItem.image,
      demandKeyword: normalizeText(item.demandKeyword) || title,
      detailSubtitle: normalizeText(item.detailSubtitle) || fallbackItem.detailSubtitle || fallbackItem.description,
      detailParagraphs: normalizeDetailParagraphs(item.detailParagraphs, fallbackItem.detailParagraphs, fallbackItem.description),
    };
  });
}

function normalizeDetailParagraphs(
  paragraphs: string[] | null | undefined,
  fallbackParagraphs: string[],
  description: string,
) {
  const normalized = (paragraphs ?? []).map((paragraph) => normalizeText(paragraph)).filter(Boolean);
  return normalized.length ? normalized : fallbackParagraphs.length ? [...fallbackParagraphs] : [description];
}

function normalizeText(value: unknown) {
  return typeof value === "string" ? value.trim() : "";
}

export function normalizeHomeTeamBuildingDetail(
  item: HomeTeamBuildingApiItem | null | undefined,
): HomeTeamBuilding {
  const fallback = homeTeamBuildingFallback.find((candidate) => candidate.id === item?.id)
    ?? homeTeamBuildingFallback[0];
  const normalized = normalizeHomeTeamBuildings(item ? [item] : [fallback])[0];
  return normalized;
}