import { useState } from 'react'
import type { Mode, SurveyDetailInfo, SurveyDetailRequest } from '@/types/Survey'
import { useAlertMsg, WARNING_MESSAGE } from '@/hooks/useAlertMsg'
import { radioEtcData, selectBoxOptions, supplementaryFacilities, roofMaterial } from '@/types/Survey'

const makeNumArr = (value: string) => {
  return value
    .split(',')
    .map((v) => v.trim())
    .filter((v) => v.length > 0)
}

export default function RoofForm(props: {
  roofInfo: SurveyDetailRequest | SurveyDetailInfo
  setRoofInfo: (roofInfo: SurveyDetailRequest) => void
  mode: Mode
}) {
  const { roofInfo, setRoofInfo, mode } = props
  const { showErrorAlert } = useAlertMsg()
  const [isFlip, setIsFlip] = useState<boolean>(true)

  const handleNumberInput = (key: keyof SurveyDetailRequest, value: number | string) => {
    /** 지붕 경사도, 노지판 두께 처리 - 최대 5자리, 소수점 1자리 처리 */
    if (key === 'roofSlope' || key === 'openFieldPlateThickness') {
      const stringValue = value.toString()
      if (stringValue.length > 5) {
        showErrorAlert(WARNING_MESSAGE.SAVE_SIZE_OVERFLOW)
        return
      }
      if (stringValue.includes('.')) {
        const decimalPlaces = stringValue.split('.')[1].length
        if (decimalPlaces > 1) {
          showErrorAlert(WARNING_MESSAGE.DECIMAL_POINT_CANNOT_EXCEED)
          return
        }
      }
    }
    /** 전기 계약 용량 처리 - 단위 붙여서 저장*/
    if (key === 'contractCapacity') {
      const remainValue = roofInfo.contractCapacity?.split(' ')[1] ?? roofInfo.contractCapacity
      if (Number.isNaN(Number(remainValue))) {
        setRoofInfo({ ...roofInfo, [key]: value + ' ' + remainValue })
        return
      }
      setRoofInfo({ ...roofInfo, [key]: value.toString() })
    }
    setRoofInfo({ ...roofInfo, [key]: value.toString() })
  }

  /** 전기 계약 용량 단위 처리 */
  const handleUnitInput = (value: string) => {
    const numericValue = roofInfo.contractCapacity?.replace(/[^0-9.]/g, '') || ''
    setRoofInfo({
      ...roofInfo,
      contractCapacity: numericValue ? `${numericValue} ${value}` : '0 ' + value,
    })
  }

  return (
    <div className={`sale-detail-toggle-bx ${isFlip ? 'act' : ''}`}>
      <div className="sale-detail-toggle-head" onClick={() => setIsFlip(!isFlip)}>
        <div className="sale-detail-toggle-name">電気 / 屋根情報</div>
        <div className="sale-detail-toggle-btn-wrap">
          <button className="sale-detail-toggle-btn"></button>
        </div>
      </div>
      <div className="sale-detail-toggle-cont">
        <div className="sale-frame">
          {/* 전기 관계 */}
          <div className="sale-roof-title">電気関係</div>
          <div className="data-form-wrap">
            <div className="data-input-form-bx">
              {/* 전기 계약 용량 */}
              <div className="data-input-form-tit">電気契約容量</div>
              {mode === 'READ' && <input type="text" className="input-frame" value={roofInfo?.contractCapacity ?? ''} readOnly={mode === 'READ'} />}
              {mode !== 'READ' && (
                <div className="data-input mb5">
                  <input
                    type="number"
                    inputMode="numeric"
                    id="contractCapacity"
                    className="input-frame"
                    value={roofInfo?.contractCapacity?.split(' ')[0] ?? ''}
                    onChange={(e) => handleNumberInput('contractCapacity', e.target.value)}
                  />
                  <div className="data-input">
                    <select
                      className="select-form"
                      name="contractCapacityUnit"
                      id="contractCapacityUnit"
                      value={roofInfo?.contractCapacity?.split(' ')[1] ?? ''}
                      onChange={(e) => handleUnitInput(e.target.value)}
                    >
                      <option value="" hidden>
                        단위
                      </option>
                      <option value="A">A</option>
                      <option value="kVA">kVA</option>
                    </select>
                  </div>
                </div>
              )}
            </div>
            <div className="data-input-form-bx">
              {/* 전기 소매 회사사 */}
              <div className="data-input-form-tit">電気小売会社</div>
              <input
                type="text"
                className="input-frame"
                value={roofInfo?.retailCompany ?? ''}
                disabled={mode === 'READ'}
                onChange={(e) => setRoofInfo({ ...roofInfo, retailCompany: e.target.value })}
              />
            </div>
            <div className="data-input-form-bx">
              {/* 전기 부대 설비 */}
              <div className="data-input-form-tit">
                電気袋設備<span>※複数選択可能</span>
              </div>
              <MultiCheck mode={mode} column="supplementaryFacilities" roofInfo={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            {/* 설치 희망 시스템 */}
            <div className="data-input-form-bx">
              <div className="data-input-form-tit red-f">設置希望システム</div>
              <SelectedBox mode={mode} column="installationSystem" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
          </div>
        </div>
        <div className="sale-frame">
          {/* 지붕 관계 */}
          <div className="sale-roof-title">屋根関係</div>
          <div className="data-form-wrap">
            <div className="data-input-form-bx">
              {/* 건축 연수 */}
              <div className="data-input-form-tit red-f">建築研修</div>
              <div className="data-input mb5">
                <SelectedBox mode={mode} column="constructionYear" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 지붕재 */}
              <div className="data-input-form-tit">
                屋根材<span>※最大2個まで選択可能</span>
              </div>
              <MultiCheck mode={mode} column="roofMaterial" roofInfo={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 지붕 모양 */}
              <div className="data-input-form-tit">屋根の形状</div>
              <div className="data-input mb5">
                <SelectedBox mode={mode} column="roofShape" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 지붕 경사도 */}
              <div className="data-input-form-tit">屋根の斜面</div>
              <div className="data-input flex">
                <input
                  type="number"
                  inputMode="numeric"
                  id="roofSlope"
                  className="input-frame"
                  value={roofInfo?.roofSlope ?? ''}
                  disabled={mode === 'READ'}
                  onChange={(e) => handleNumberInput('roofSlope', e.target.value)}
                />
                <span>寸</span>
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 주택구조조 */}
              <div className="data-input-form-tit">住宅構造</div>
              <RadioSelected mode={mode} column="houseStructure" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 서까래 재질 */}
              <div className="data-input-form-tit">垂木材質</div>
              <RadioSelected mode={mode} column="rafterMaterial" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 서까래 크기 */}
              <div className="data-input-form-tit red-f">垂木サイズ</div>
              <div className="data-input mb5">
                <SelectedBox mode={mode} column="rafterSize" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 서까래 피치 */}
              <div className="data-input-form-tit red-f">垂木サイズ</div>
              <div className="data-input mb5">
                <SelectedBox mode={mode} column="rafterPitch" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 서까래 방향 */}
              <div className="data-input-form-tit red-f">垂木の方向</div>
              <div className="data-check-wrap mb0">
                <RadioSelected mode={mode} column="rafterDirection" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 노지판 종류 */}
              <div className="data-input-form-tit">路地板の種類</div>
              <div className="data-input mb5">
                <SelectedBox mode={mode} column="openFieldPlateKind" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            {roofInfo.openFieldPlateKind === '4' && (
              <div className="data-input-form-bx">
                {/* 노지판 두께 */}
                <div className="data-input-form-tit">
                  路地板厚<span>※小幅板を選択した場合, 厚さ. 小幅板間の間隔寸法を記載</span>
                </div>
                <div className="data-input flex">
                  <input
                    type="number"
                    inputMode="numeric"
                    id="openFieldPlateThickness"
                    className="input-frame"
                    value={roofInfo?.openFieldPlateThickness ?? ''}
                    disabled={mode === 'READ'}
                    onChange={(e) => handleNumberInput('openFieldPlateThickness', e.target.value)}
                  />
                  <span>mm</span>
                </div>
              </div>
            )}
            <div className="data-input-form-bx">
              {/* 누수 흔적 */}
              <div className="data-input-form-tit ">水漏れの痕跡</div>
              <div className="data-check-wrap mb0">
                <RadioSelected mode={mode} column="leakTrace" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
              </div>
            </div>
            <div className="data-input-form-bx">
              {/* 방수재 종류 */}
              <div className="data-input-form-tit red-f">防水材の種類</div>
              <RadioSelected mode={mode} column="waterproofMaterial" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 단열재 유무 */}
              <div className="data-input-form-tit red-f">断熱材の有無</div>
              <RadioSelected mode={mode} column="insulationPresence" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 지붕 구조의 순서 */}
              <div className="data-input-form-tit red-f">屋根構造の順序</div>
              <RadioSelected mode={mode} column="structureOrder" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 지붕 제품명 설치 가능 여부 확인 */}
              <div className="data-input-form-tit">屋根製品名 設置可否確認</div>
              <SelectedBox mode={mode} column="installationAvailability" detailInfoData={roofInfo as SurveyDetailInfo} setRoofInfo={setRoofInfo} />
            </div>
            <div className="data-input-form-bx">
              {/* 메모 */}
              <div className="data-input-form-tit">メモ</div>
              <div className="data-input">
                <textarea
                  className="textarea-form"
                  name="memo"
                  id="memo"
                  value={roofInfo?.memo ?? ''}
                  disabled={mode === 'READ'}
                  onChange={(e) => {
                    if (e.target.value.length >= 2000) {
                      showErrorAlert(WARNING_MESSAGE.CONTENTS_MAX_LENGTH)
                      return
                    }
                    setRoofInfo({ ...roofInfo, memo: e.target.value })
                  }}
                  maxLength={2000}
                ></textarea>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  )
}

/** SelectBox 처리 */
const SelectedBox = ({
  mode,
  column,
  detailInfoData,
  setRoofInfo,
}: {
  mode: Mode
  column: string
  detailInfoData: SurveyDetailInfo
  setRoofInfo: (roofInfo: SurveyDetailRequest) => void
}) => {
  const selectedId = detailInfoData?.[column as keyof SurveyDetailInfo]
  const etcValue = detailInfoData?.[`${column}Etc` as keyof SurveyDetailInfo]
  const [isEtcSelected, setIsEtcSelected] = useState<boolean>(Boolean(etcValue))

  const isSpecialCase = column === 'constructionYear' || column === 'installationAvailability'
  const showEtcOption = !isSpecialCase

  /** SelectBox 값 변경 처리 */
  const handleSelectChange = (e: React.ChangeEvent<HTMLSelectElement>) => {
    const value = e.target.value
    const isEtc = value === 'etc'
    const isSpecialEtc = isSpecialCase && value === '2'

    const updatedData = {
      ...detailInfoData,
      [column]: isEtc ? null : value,
      [`${column}Etc`]: isEtc ? '' : null,
    }

    if (isSpecialEtc) {
      updatedData[column] = value
    }

    setIsEtcSelected(isEtc || isSpecialEtc)
    setRoofInfo(updatedData)
  }

  /** 기타 입력 처리 */
  const handleEtcInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    setRoofInfo({ ...detailInfoData, [`${column}Etc`]: e.target.value })
  }

  /** Input box 비활성화 처리
   * - 읽기 모드 : 비활성화
   * - 설치 가능 여부 : 기타 입력 창 항상 활성화
   * - 건축 연수 : 신축(1) 체크 시 비활성화
   * */
  const isInputDisabled = () => {
    if (mode === 'READ') return true
    if (column === 'installationAvailability') return false
    if (column === 'constructionYear') {
      return detailInfoData.constructionYear === '1' || detailInfoData.constructionYear === null
    }
    return !isEtcSelected && !etcValue
  }

  return (
    <>
      <select
        className="select-form mb10"
        name={column}
        id={column}
        disabled={mode === 'READ'}
        value={selectedId ? Number(selectedId) : etcValue || isEtcSelected ? 'etc' : ''}
        onChange={handleSelectChange}
      >
        {selectBoxOptions[column as keyof typeof selectBoxOptions].map((item) => (
          <option key={item.id} value={item.id}>
            {item.name}
          </option>
        ))}
        {showEtcOption && (
          <option key="etc" value="etc">
            その他 (直接入力)
          </option>
        )}
        <option key="" value="" hidden>
          選択してください
        </option>
      </select>
      <div className={`data-input ${column === 'constructionYear' ? 'flex' : ''}`}>
        <input
          id={`${column}Etc`}
          type={column === 'constructionYear' ? 'number' : 'text'}
          inputMode={column === 'constructionYear' ? 'numeric' : 'text'}
          className="input-frame"
          placeholder="-"
          value={detailInfoData[`${column}Etc` as keyof SurveyDetailInfo]?.toString() ?? ''}
          onChange={handleEtcInputChange}
          readOnly={isInputDisabled()}
        />
        {column === 'constructionYear' && <span>年</span>}
      </div>
    </>
  )
}

/** RadioBox 선택 처리 */
const RadioSelected = ({
  mode,
  column,
  detailInfoData,
  setRoofInfo,
}: {
  mode: Mode
  column: string
  detailInfoData: SurveyDetailInfo
  setRoofInfo: (roofInfo: SurveyDetailRequest) => void
}) => {
  const etcValue = detailInfoData?.[`${column}Etc` as keyof SurveyDetailInfo]
  const [etcChecked, setEtcChecked] = useState<boolean>(Boolean(etcValue))

  const selectedId =
    column === 'leakTrace' ? Number(detailInfoData?.[column as keyof SurveyDetailInfo]) || 2 : detailInfoData?.[column as keyof SurveyDetailInfo]

  const isSpecialColumn = column === 'rafterDirection' || column === 'leakTrace' || column === 'insulationPresence'
  const showEtcOption = !isSpecialColumn

  /** RadioBox 값 변경 처리 */
  const handleRadioChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const value = e.target.value

    /** 누수 흔적 처리 - boolean 타입이므로 별도 처리 */
    if (column === 'leakTrace') {
      setRoofInfo({ ...detailInfoData, leakTrace: value === '1' })
      return
    }

    /** 기타 체크 처리 */
    if (value === 'etc') {
      setEtcChecked(true)
      setRoofInfo({ ...detailInfoData, [column]: null, [`${column}Etc`]: '' })
      return
    }

    /** 단열재 유무 - 있음(1) 선택 시 기타 체크 처리
     *  서까래 방향 - 기타 입력 칸 없음
     * */
    const isInsulationPresence = column === 'insulationPresence'
    const isRafterDirection = column === 'rafterDirection'

    setEtcChecked(isInsulationPresence && value === '2')

    setRoofInfo({
      ...detailInfoData,
      [column]: value,
      [`${column}Etc`]: isRafterDirection ? detailInfoData[`${column}Etc` as keyof SurveyDetailInfo] : null,
    })
  }

  /** 기타 입력 처리 */
  const handleEtcInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    setRoofInfo({ ...detailInfoData, [`${column}Etc`]: e.target.value })
  }

  /** Input box 비활성화 처리
   * - 읽기 모드 : 비활성화
   * - 단열재 유무 : 단열재 없음(1) 체크 시 비활성화
   * */
  const isInputDisabled = () => {
    if (mode === 'READ') return true
    if (column === 'insulationPresence') {
      return detailInfoData.insulationPresence !== '2'
    }
    return !etcChecked && !etcValue
  }

  return (
    <>
      {radioEtcData[column as keyof typeof radioEtcData].map((item) => (
        <div className="radio-form-box mb10" key={item.id}>
          <input
            type="radio"
            name={column}
            id={`${column}_${item.id}`}
            disabled={mode === 'READ'}
            checked={Number(selectedId) === item.id}
            onChange={handleRadioChange}
            value={item.id}
          />
          <label htmlFor={`${column}_${item.id}`}>{item.label}</label>
        </div>
      ))}
      {showEtcOption && (
        <div className="radio-form-box mb10">
          <input
            type="radio"
            name={column}
            id={`${column}Etc`}
            value="etc"
            disabled={mode === 'READ'}
            checked={etcChecked || Boolean(etcValue)}
            onChange={handleRadioChange}
          />
          <label htmlFor={`${column}Etc`}>その他 (直接入力)</label>
        </div>
      )}
      {(showEtcOption || column === 'insulationPresence') && (
        <div className="data-input">
          <input
            id={`${column}Etc`}
            type="text"
            className="input-frame"
            placeholder="-"
            value={detailInfoData[`${column}Etc` as keyof SurveyDetailInfo]?.toString() ?? ''}
            onChange={handleEtcInputChange}
            readOnly={isInputDisabled()}
          />
        </div>
      )}
    </>
  )
}

/** 다중 선택 처리 */
const MultiCheck = ({
  mode,
  column,
  roofInfo,
  setRoofInfo,
}: {
  mode: Mode
  column: string
  roofInfo: SurveyDetailInfo
  setRoofInfo: (roofInfo: SurveyDetailRequest) => void
}) => {
  const { showErrorAlert } = useAlertMsg()
  const multiCheckData = column === 'supplementaryFacilities' ? supplementaryFacilities : roofMaterial
  const etcValue = roofInfo?.[`${column}Etc` as keyof SurveyDetailInfo]
  const [isOtherCheck, setIsOtherCheck] = useState<boolean>(Boolean(etcValue))

  const isRoofMaterial = column === 'roofMaterial'
  const selectedValues = makeNumArr(String(roofInfo[column as keyof SurveyDetailInfo] ?? ''))

  /** 다중 선택 처리 */
  const handleCheckbox = (id: number) => {
    const isOtherSelected = Boolean(etcValue)
    let newValue: string[]

    if (selectedValues.includes(String(id))) {
      newValue = selectedValues.filter((v) => v !== String(id))
    } else {
      /** 지붕 재료 처리 - 최대 2개 선택 처리 */
      if (isRoofMaterial) {
        const totalSelected = selectedValues.length + (isOtherSelected || isOtherCheck ? 1 : 0)
        if (totalSelected >= 2) {
          showErrorAlert(WARNING_MESSAGE.ROOF_MATERIAL_MAX_SELECT)
          return
        }
      }
      newValue = [...selectedValues, String(id)]
    }
    setRoofInfo({ ...roofInfo, [column]: newValue.join(',') })
  }

  /** 기타 선택 처리 */
  const handleOtherCheckbox = () => {
    if (isRoofMaterial) {
      const currentSelected = selectedValues.length
      if (!isOtherCheck && currentSelected >= 2) {
        showErrorAlert(WARNING_MESSAGE.ROOF_MATERIAL_MAX_SELECT)
        return
      }
    }

    const newIsOtherCheck = !isOtherCheck
    setIsOtherCheck(newIsOtherCheck)

    /** 기타 선택 해제 시 값도 null로 설정 */
    setRoofInfo({
      ...roofInfo,
      [`${column}Etc`]: newIsOtherCheck ? '' : null,
    })
  }

  /** 기타 입력 처리 */
  const handleOtherInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    setRoofInfo({ ...roofInfo, [`${column}Etc`]: e.target.value })
  }

  /** Input box 비활성화 처리 */
  const isInputDisabled = () => {
    return mode === 'READ' || (!isOtherCheck && !etcValue)
  }

  return (
    <>
      <div className="data-check-wrap">
        {multiCheckData.map((item) => (
          <div className="check-form-box" key={item.id}>
            <input
              type="checkbox"
              id={`${column}_${item.id}`}
              checked={selectedValues.includes(String(item.id))}
              disabled={mode === 'READ'}
              onChange={() => handleCheckbox(item.id)}
            />
            <label htmlFor={`${column}_${item.id}`}>{item.name}</label>
          </div>
        ))}
        <div className="check-form-box">
          <input
            type="checkbox"
            id={`${column}Etc`}
            checked={isOtherCheck || Boolean(etcValue)}
            disabled={mode === 'READ'}
            onChange={handleOtherCheckbox}
          />
          <label htmlFor={`${column}Etc`}>その他 (直接入力)</label>
        </div>
      </div>
      <div className="data-input">
        <input
          type="text"
          className="input-frame"
          placeholder="-"
          value={roofInfo[`${column}Etc` as keyof SurveyDetailInfo]?.toString() ?? ''}
          onChange={handleOtherInputChange}
          readOnly={isInputDisabled()}
        />
      </div>
    </>
  )
}