import { Hono } from "hono";
import debug from "debug";

import type {
  ZichanCategory
} from "../client/share/monitorTypes.ts";

import type { Variables, WithAuth } from "./middlewares.ts";

const log = {
  api: debug("d8d:zichan:api"),
};



// 创建资产分类管理路由
export function createZichanCategoryRoutes(withAuth: WithAuth) {
  const zichanCategoryRoutes = new Hono<{ Variables: Variables }>();

  // 获取资产分类列表
  zichanCategoryRoutes.get("/", withAuth, async (c) => {
    try {
      const apiClient = c.get('apiClient');

      // 获取分页参数
      const page = Number(c.req.query("page")) || 1;
      const limit = Number(c.req.query("limit")) || 10;
      const offset = (page - 1) * limit;

      // 获取筛选参数
      const name = c.req.query("name");
      const code = c.req.query("code");

      let query = apiClient.database
        .table("zichan_category")
        .where("is_deleted", 0)
        .orderBy("id", "desc")
        .limit(limit)
        .offset(offset);

      if (name) {
        query = query.where("name", "like", `%${name}%`);
      }

      if (code) {
        query = query.where("code", "like", `%${code}%`);
      }

      // 克隆查询以获取总数
      const countQuery = query.clone();

      // 执行分页查询
      const categories = await query.limit(limit).offset(offset);

      // 获取总数
      const count = await countQuery.count();

      return c.json({
        data: categories,
        pagination: {
          total: Number(count),
          current: page,
          pageSize: limit,
          totalPages: Math.ceil(Number(count) / limit),
        },
      });
    } catch (error) {
      log.api("获取资产分类列表失败:", error);
      return c.json({ error: "获取资产分类列表失败" }, 500);
    }
  });

  // 创建资产分类
  zichanCategoryRoutes.post("/", withAuth, async (c) => {
    try {
      const apiClient = c.get('apiClient');
      const categoryData = (await c.req.json()) as Partial<ZichanCategory>;

      // 验证必填字段
      if (!categoryData.name || !categoryData.code) {
        return c.json({ error: "名称和编码不能为空" }, 400);
      }

      // 检查是否已存在相同编码的分类
      const existingCategory = await apiClient.database
        .table("zichan_category")
        .where("code", categoryData.code)
        .where("is_deleted", 0)
        .first();

      if (existingCategory) {
        return c.json({ error: "相同编码的分类已存在" }, 400);
      }

      // 插入新分类
      const [id] = await apiClient.database
        .table("zichan_category")
        .insert(categoryData);

      return c.json({
        message: "资产分类创建成功",
        data: { id, ...categoryData },
      });
    } catch (error) {
      log.api("创建资产分类失败:", error);
      return c.json({ error: "创建资产分类失败" }, 500);
    }
  });

  // 更新资产分类
  zichanCategoryRoutes.put("/:id", withAuth, async (c) => {
    try {
      const apiClient = c.get('apiClient');
      const id = Number(c.req.param("id"));
      const categoryData = (await c.req.json()) as Partial<ZichanCategory>;

      // 验证必填字段
      if (!categoryData.name || !categoryData.code) {
        return c.json({ error: "名称和编码不能为空" }, 400);
      }

      // 检查是否已存在相同编码的分类
      const existingCategory = await apiClient.database
        .table("zichan_category")
        .where("code", categoryData.code)
        .where("is_deleted", 0)
        .where("id", "!=", id)
        .first();

      if (existingCategory) {
        return c.json({ error: "相同编码的分类已存在" }, 400);
      }

      // 更新分类
      await apiClient.database
        .table("zichan_category")
        .where("id", id)
        .update({
          ...categoryData,
          updated_at: apiClient.database.fn.now(),
        });

      return c.json({
        message: "资产分类更新成功",
        data: { id, ...categoryData },
      });
    } catch (error) {
      log.api("更新资产分类失败:", error);
      return c.json({ error: "更新资产分类失败" }, 500);
    }
  });

  // 删除资产分类
  zichanCategoryRoutes.delete("/:id", withAuth, async (c) => {
    try {
      const apiClient = c.get('apiClient');
      const id = Number(c.req.param("id"));

      if (!id || isNaN(id)) {
        return c.json({ error: "无效的资产分类ID" }, 400);
      }

      // 检查是否有关联的资产
      const assetCount = await apiClient.database
        .table("zichan_info")
        .where("device_category", id)
        .where("is_deleted", 0)
        .count();

      if (assetCount > 0) {
        return c.json({ error: "该分类下有关联的资产，无法删除" }, 400);
      }

      // 软删除分类
      await apiClient.database.table("zichan_category").where("id", id).update({
        is_deleted: 1,
        updated_at: apiClient.database.fn.now(),
      });

      return c.json({
        message: "资产分类删除成功",
        id,
      });
    } catch (error) {
      log.api("删除资产分类失败:", error);
      return c.json({ error: "删除资产分类失败" }, 500);
    }
  });

  return zichanCategoryRoutes;
}