import { Hono } from "hono";
import debug from "debug";
import type {
  DeviceType,
} from "../client/share/monitorTypes.ts";

import {
  EnableStatus,
  DeleteStatus,
} from "../client/share/types.ts";

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

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

// 创建设备类型路由
export function createDeviceTypesRoutes(withAuth: WithAuth) {
  const deviceTypesRoutes = new Hono<{ Variables: Variables }>();

  // 获取设备类型列表
  deviceTypesRoutes.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");

      // 构建查询
      let query = apiClient.database
        .table("device_types")
        .where("is_deleted", DeleteStatus.NOT_DELETED)
        .orderBy("id", "desc");

      // 应用筛选条件
      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 deviceTypes = await query.limit(limit).offset(offset);

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

      return c.json({
        data: deviceTypes,
        pagination: {
          total: Number(count),
          current: page,
          pageSize: limit,
          totalPages: Math.ceil(Number(count) / limit),
        },
      });
    } catch (error) {
      log.api("获取设备类型列表失败:", error);
      return c.json({ error: "获取设备类型列表失败" }, 500);
    }
  });

  // 获取单个设备类型
  deviceTypesRoutes.get("/:id", withAuth, async (c) => {
    try {
      const id = Number(c.req.param("id"));

      if (!id || isNaN(id)) {
        return c.json({ error: "无效的设备类型ID" }, 400);
      }

      const apiClient = c.get('apiClient');
      const [deviceType] = await apiClient.database
        .table("device_types")
        .where({ id, is_deleted: DeleteStatus.NOT_DELETED });

      if (!deviceType) {
        return c.json({ error: "设备类型不存在" }, 404);
      }

      return c.json(deviceType);
    } catch (error) {
      log.api("获取设备类型详情失败:", error);
      return c.json({ error: "获取设备类型详情失败" }, 500);
    }
  });

  // 创建设备类型
  deviceTypesRoutes.post("/", withAuth, async (c) => {
    try {
      const data = (await c.req.json()) as Partial<DeviceType>;

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

      const apiClient = c.get('apiClient');

      // 检查编码是否已存在
      const existingCode = await apiClient.database
        .table("device_types")
        .where({ code: data.code, is_deleted: DeleteStatus.NOT_DELETED })
        .first();

      if (existingCode) {
        return c.json({ error: "类型编码已存在" }, 400);
      }

      // 插入新记录
      const [id] = await apiClient.database.table("device_types").insert({
        ...data,
        is_enabled: data.is_enabled ?? EnableStatus.ENABLED,
        is_deleted: DeleteStatus.NOT_DELETED,
      });

      // 获取创建的记录
      const [createdType] = await apiClient.database
        .table("device_types")
        .where("id", id);

      return c.json({
        message: "设备类型创建成功",
        data: createdType,
      });
    } catch (error) {
      log.api("创建设备类型失败:", error);
      return c.json({ error: "创建设备类型失败" }, 500);
    }
  });

  // 更新设备类型
  deviceTypesRoutes.put("/:id", withAuth, async (c) => {
    try {
      const id = Number(c.req.param("id"));

      if (!id || isNaN(id)) {
        return c.json({ error: "无效的设备类型ID" }, 400);
      }

      const data = (await c.req.json()) as Partial<DeviceType>;

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

      const apiClient = c.get('apiClient');

      // 检查编码是否已存在(且不是当前记录)
      if (data.code) {
        const existingCode = await apiClient.database
          .table("device_types")
          .where({ code: data.code, is_deleted: DeleteStatus.NOT_DELETED })
          .whereNot("id", id.toString())
          .first();

        if (existingCode) {
          return c.json({ error: "类型编码已存在" }, 400);
        }
      }

      // 检查记录是否存在
      const existingType = await apiClient.database
        .table("device_types")
        .where({ id, is_deleted: DeleteStatus.NOT_DELETED })
        .first();

      if (!existingType) {
        return c.json({ error: "设备类型不存在" }, 404);
      }

      // 更新记录
      await apiClient.database
        .table("device_types")
        .where("id", id)
        .update({
          ...data,
          updated_at: apiClient.database.fn.now(),
        });

      // 获取更新后的记录
      const [updatedType] = await apiClient.database
        .table("device_types")
        .where("id", id);

      return c.json({
        message: "设备类型更新成功",
        data: updatedType,
      });
    } catch (error) {
      log.api("更新设备类型失败:", error);
      return c.json({ error: "更新设备类型失败" }, 500);
    }
  });

  // 删除设备类型(软删除)
  deviceTypesRoutes.delete("/:id", withAuth, async (c) => {
    try {
      const id = Number(c.req.param("id"));

      if (!id || isNaN(id)) {
        return c.json({ error: "无效的设备类型ID" }, 400);
      }

      const apiClient = c.get('apiClient');

      // 检查是否有关联的设备实例
      const relatedInstances = await apiClient.database
        .table("device_instances")
        .where({ type_id: id, is_deleted: DeleteStatus.NOT_DELETED })
        .first();

      if (relatedInstances) {
        return c.json({ error: "该类型有关联的设备实例，无法删除" }, 400);
      }

      // 检查记录是否存在
      const existingType = await apiClient.database
        .table("device_types")
        .where({ id, is_deleted: DeleteStatus.NOT_DELETED })
        .first();

      if (!existingType) {
        return c.json({ error: "设备类型不存在" }, 404);
      }

      // 软删除
      await apiClient.database.table("device_types").where("id", id).update({
        is_deleted: DeleteStatus.DELETED,
        updated_at: apiClient.database.fn.now(),
      });

      return c.json({
        message: "设备类型删除成功",
        id,
      });
    } catch (error) {
      log.api("删除设备类型失败:", error);
      return c.json({ error: "删除设备类型失败" }, 500);
    }
  });

  return deviceTypesRoutes;
}