'use client'

import { useContext, useEffect, useState } from 'react'
import { usePathname, useRouter, useSearchParams } from 'next/navigation'

import { useRecoilState } from 'recoil'

import { canvasState, currentCanvasPlanState, plansState } from '@/store/canvasAtom'
import { useAxios } from '@/hooks/useAxios'
import { useMessage } from '@/hooks/useMessage'
import { useSwal } from '@/hooks/useSwal'
import { useCanvas } from '@/hooks/useCanvas'
import { SAVE_KEY } from '@/common/common'
import { readImage, removeImage } from '@/lib/fileAction'
import { FloorPlanContext } from '@/app/floor-plan/FloorPlanProvider'
import { useEstimateController } from '@/hooks/floorPlan/estimate/useEstimateController'

export function usePlan(params = {}) {
  const { floorPlanState } = useContext(FloorPlanContext)

  const [selectedPlan, setSelectedPlan] = useState(null)

  const [canvas, setCanvas] = useRecoilState(canvasState)

  const [currentCanvasPlan, setCurrentCanvasPlan] = useRecoilState(currentCanvasPlanState)
  const [plans, setPlans] = useRecoilState(plansState) // 전체 plan

  const router = useRouter()
  const pathname = usePathname()

  const { swalFire } = useSwal()
  const { getMessage } = useMessage()
  const { get, promisePost, promisePut, promiseDel, promiseGet } = useAxios()

  const { setEstimateContextState } = useEstimateController()
  /**
   * 마우스 포인터의 가이드라인을 제거합니다.
   */
  const removeMouseLines = () => {
    if (canvas?._objects.length > 0) {
      const mouseLines = canvas?._objects.filter((obj) => obj.name === 'mouseLine')
      mouseLines.forEach((item) => canvas?.remove(item))
    }
    canvas?.renderAll()
  }

  const addCanvas = () => {
    const objs = canvas?.toJSON(SAVE_KEY)

    const str = JSON.stringify(objs)

    // canvas?.clear()
    return str

    // setTimeout(() => {
    //   // 역직렬화하여 캔버스에 객체를 다시 추가합니다.
    //   canvas?.loadFromJSON(JSON.parse(str), function () {
    //     // 모든 객체가 로드되고 캔버스에 추가된 후 호출됩니다.
    //     console.log(canvas?.getObjects().filter((obj) => obj.name === 'roof'))
    //     canvas?.renderAll() // 캔버스를 다시 그립니다.
    //   })
    // }, 1000)
  }

  /**
   * 현재 캔버스에 그려진 데이터를 추출
   */
  const currentCanvasData = (mode = '') => {
    removeMouseLines()
    canvas.discardActiveObject()

    if (mode === 'save') {
      const groups = canvas.getObjects().filter((obj) => obj.type === 'group')

      if (groups.length > 0) {
        groups.forEach((group) => {
          canvas?.remove(group)
          canvas?.renderAll()
          const restore = group._restoreObjectsState() //그룹 좌표 복구

          //그룹시 좌표가 틀어지는 이슈
          restore._objects.forEach((obj) => {
            obj.set({
              ...obj,
              groupYn: true,
              groupName: group.name,
              groupId: group.id,
            })

            //디렉션이 있는 경우에만
            if (group.lineDirection) obj.set({ lineDirection: group.lineDirection })
            //부모객체가 있으면 (면형상 위에 도머등..)
            if (group.parentId) obj.set({ parentId: group.parentId })

            canvas?.add(obj)
            obj.setCoords()
            canvas?.renderAll()
          })
        })
      }
    }

    return addCanvas()
  }

  /**
   * DB에 저장된 데이터를 canvas에서 사용할 수 있도록 포맷화
   */
  const dbToCanvasFormat = (cs) => {
    return cs.replace(/##/g, '"').replace(/∠/g, '∠').replace(/°/g, '°')
  }

  /**
   * canvas의 데이터를 DB에 저장할 수 있도록 포맷화
   */
  const canvasToDbFormat = (cs) => {
    return cs.replace(/"/g, '##')
  }

  /**
   * 페이지 내 캔버스를 저장
   */
  const saveCanvas = async () => {
    const canvasStatus = currentCanvasData('save')
    await putCanvasStatus(canvasStatus)
  }

  /**
   * objectNo에 해당하는 canvas 목록을 조회
   */
  const getCanvasByObjectNo = async (userId, objectNo) => {
    return await get({ url: `/api/canvas-management/canvas-statuses/by-object/${objectNo}/${userId}` }).then((res) =>
      res.map((item) => ({
        id: item.id,
        objectNo: item.objectNo,
        planNo: item.planNo,
        userId: item.userId,
        canvasStatus: dbToCanvasFormat(item.canvasStatus),
        isCurrent: false,
        bgImageName: item.bgImageName,
        mapPositionAddress: item.mapPositionAddress,
      })),
    )
  }

  /**
   * 물건번호(object) plan 추가 (canvas 생성 전 planNo 할당)
   */
  const postObjectPlan = async (userId, objectNo) => {
    return await promisePost({ url: '/api/object/add-plan', data: { userId: userId, objectNo: objectNo } })
      .then((res) => {
        return res.data.planNo
      })
      .catch((error) => {
        swalFire({ text: error.response.data.message, icon: 'error' })
        return null
      })
  }

  /**
   * 신규 canvas 데이터를 저장
   */
  const postCanvasStatus = async (userId, objectNo, canvasStatus, isInitPlan = false) => {
    const planNo = await postObjectPlan(userId, objectNo)
    if (!planNo) return

    const planData = {
      userId: userId,
      objectNo: objectNo,
      planNo: planNo,
      bgImageName: currentCanvasPlan?.bgImageName ?? null,
      mapPositionAddress: currentCanvasPlan?.mapPositionAddress ?? null,
      canvasStatus: canvasToDbFormat(canvasStatus),
    }
    await promisePost({ url: '/api/canvas-management/canvas-statuses', data: planData })
      .then((res) => {
        if (isInitPlan) {
          // 초기 플랜 생성인 경우 플랜 목록 초기화
          setPlans([{ id: res.data, objectNo: objectNo, planNo: planNo, userId: userId, canvasStatus: canvasStatus }])
        } else {
          setPlans((plans) => [...plans, { id: res.data, objectNo: objectNo, planNo: planNo, userId: userId, canvasStatus: canvasStatus }])
        }
        updateCurrentPlan(res.data)
        swalFire({ text: getMessage('plan.message.save') })
      })
      .catch((error) => {
        swalFire({ text: error.message, icon: 'error' })
      })
  }

  /**
   * id에 해당하는 canvas 데이터를 수정
   */
  const putCanvasStatus = async (canvasStatus) => {
    const planData = {
      id: currentCanvasPlan.id,
      bgImageName: currentCanvasPlan?.bgImageName ?? null,
      mapPositionAddress: currentCanvasPlan?.mapPositionAddress ?? null,
      canvasStatus: canvasToDbFormat(canvasStatus),
    }
    await promisePut({ url: '/api/canvas-management/canvas-statuses', data: planData })
      .then((res) => {
        setPlans((plans) => plans.map((plan) => (plan.id === currentCanvasPlan.id ? { ...plan, canvasStatus: canvasStatus } : plan)))
        swalFire({ text: getMessage('plan.message.save') })
      })
      .catch((error) => {
        swalFire({ text: error.message, icon: 'error' })
      })
  }

  /**
   * id에 해당하는 canvas 데이터를 삭제
   */
  const delCanvasById = async (id) => {
    return await promiseDel({ url: `/api/canvas-management/canvas-statuses/by-id/${id}` })
  }

  /**
   * objectNo에 해당하는 canvas 데이터들을 삭제
   */
  const delCanvasByObjectNo = async (objectNo) => {
    return await promiseDel({ url: `/api/canvas-management/canvas-statuses/by-object/${objectNo}` })
  }

  /**
   * plan 이동
   * 현재 plan의 작업상태를 저장 후 이동
   */
  const handleCurrentPlan = async (newCurrentId) => {
    const planNo = plans?.find((obj) => obj.id === newCurrentId).planNo
    const objectNo = floorPlanState.objectNo
    //견적서 or 발전시뮬

    if (pathname !== '/floor-plan') {
      await promiseGet({ url: `/api/estimate/${objectNo}/${planNo}/detail` })
        .then((res) => {
          if (res.status === 200) {
            const estimateDetail = res.data
            if (pathname === '/floor-plan/estimate/5') {
              if (estimateDetail.tempFlg === '0' && estimateDetail.estimateDate !== null) {
                res.data.resetFlag = 'N'

                if (res.data.itemList.length > 0) {
                  res.data.itemList.map((item) => {
                    item.delFlg = '0'
                  })
                }
                if (res.data.pkgAsp === null || res.data.pkgAsp == undefined) {
                  res.data.pkgAsp = '0.00'
                } else {
                  const number = parseFloat(res.data.pkgAsp)
                  const roundedNumber = isNaN(number) ? '0.00' : number.toFixed(2)

                  res.data.pkgAsp = roundedNumber.toString()
                }
                setEstimateContextState(res.data)
                // 클릭한 플랜 탭으로 이동
                updateCurrentPlan(newCurrentId)
              } else {
                swalFire({ text: getMessage('estimate.menu.move.valid1') })
              }
            } else {
              // 발전시뮬레이션
              if (estimateDetail.tempFlg === '0') {
                updateCurrentPlan(newCurrentId)
              } else {
                swalFire({ text: getMessage('simulator.menu.move.valid1') })
              }
            }
          }
        })
        .catch((error) => {
          if (pathname === '/floor-plan/estimate/5') {
            swalFire({ text: getMessage('estimate.menu.move.valid1') })
          } else {
            swalFire({ text: getMessage('simulator.menu.move.valid1') })
          }
        })
    } else {
      if (!currentCanvasPlan || currentCanvasPlan.id !== newCurrentId) {
        saveCanvas()
      }
      updateCurrentPlan(newCurrentId)
    }
  }

  const updateCurrentPlan = (newCurrentId) => {
    setPlans((plans) =>
      plans.map((plan) => {
        return { ...plan, isCurrent: plan.id === newCurrentId }
      }),
    )
  }

  useEffect(() => {
    setCurrentCanvasPlan(plans.find((plan) => plan.isCurrent) || null)
    setSelectedPlan(plans.find((plan) => plan.isCurrent))
    handleCurrentPlanUrl()
    // setBgImage()
  }, [plans])

  const handleCurrentPlanUrl = () => {
    const currentPlan = plans.find((plan) => plan.isCurrent)
    if (currentPlan) router.push(`${pathname}?pid=${currentPlan?.planNo}&objectNo=${floorPlanState?.objectNo}`)
  }

  const setBgImage = () => {
    // readImage(selectedPlan?.id)
  }

  /**
   * 새로운 plan 생성
   * 현재 plan의 데이터가 있을 경우 현재 plan 저장 및 복제 여부를 확인
   */
  const handleAddPlan = async (userId, objectNo) => {
    if (currentCanvasPlan?.id) {
      await saveCanvas()
    }
    JSON.parse(currentCanvasData()).objects.length > 0
      ? swalFire({
          text: `Plan ${currentCanvasPlan.planNo} ` + getMessage('plan.message.confirm.copy'),
          type: 'confirm',
          confirmFn: async () => {
            await postCanvasStatus(userId, objectNo, currentCanvasData(), false)
          },
          denyFn: async () => {
            await postCanvasStatus(userId, objectNo, '', false)
          },
        })
      : await postCanvasStatus(userId, objectNo, '', false)
  }

  /**
   * 물건번호(object) plan 삭제 (canvas 삭제 전 planNo 삭제)
   */
  const deleteObjectPlan = async (userId, objectNo, planNo) => {
    return await promiseDel({ url: `/api/object/plan/${objectNo}/${planNo}?userId=${userId}` })
      .then((res) => {
        return true
      })
      .catch((error) => {
        swalFire({ text: error.response.data.message, icon: 'error' })
        return false
      })
  }

  /**
   * plan 삭제
   */
  const handleDeletePlan = async (e, targetPlan) => {
    e.stopPropagation() // 이벤트 버블링 방지

    const isSuccess = await deleteObjectPlan(targetPlan.id, targetPlan.objectNo, targetPlan.planNo)
    if (!isSuccess) return

    await delCanvasById(targetPlan.id)
      .then((res) => {
        setPlans((plans) => plans.filter((plan) => plan.id !== targetPlan.id))
        removeImage(currentCanvasPlan.id)
        swalFire({ text: getMessage('plan.message.delete') })
      })
      .catch((error) => {
        swalFire({ text: error.message, icon: 'error' })
      })

    // 삭제 후 last 데이터에 포커싱
    const lastPlan = plans.filter((plan) => plan.id !== targetPlan.id).at(-1)
    if (!lastPlan) {
      setCurrentCanvasPlan(null)
    } else if (targetPlan.id !== lastPlan.id) {
      updateCurrentPlan(lastPlan.id)
    }
  }

  /**
   * plan 조회
   */
  const loadCanvasPlanData = async (userId, objectNo, planNo) => {
    console.log('🚀 ~ loadCanvasPlanData ~ userId, objectNo, planNo:', userId, objectNo, planNo)
    await getCanvasByObjectNo(userId, objectNo).then((res) => {
      if (res.length > 0) {
        setPlans(res)
        updateCurrentPlan(res.find((plan) => plan.planNo === planNo).id)
      } else {
        postCanvasStatus(userId, objectNo, '', true)
      }
    })
  }

  /**
   * 현재 plan 이동 -> 새로운 링크로 이동
   */
  const handlePlanMove = () => {
    router.push(`${pathname}?objectNo=${floorPlanState.objectNo}&pid=${currentCanvasPlan?.planNo}`)
  }

  return {
    canvas,
    plans,
    selectedPlan,
    saveCanvas,
    handleCurrentPlan,
    handleAddPlan,
    handleDeletePlan,
    loadCanvasPlanData,
  }
}