/**
 * 签署方式选择弹窗
 * 花名册操作（重新入职/合同续签/薪酬变更/调岗调动）成功后，
 * 弹窗让HR选择是走电子签署还是线下手签。
 *
 * - 电子签：自动创建电子签署记录（status=PENDING），员工在员工端签署
 * - 线下手签：跳转到电子签署页面的线下手签登记
 * - 跳过：不创建签署记录
 */
import { useState } from 'react'
import { useNavigate } from 'react-router-dom'
import { toast } from 'sonner'
import { useMutation, useQueryClient } from '@tanstack/react-query'
import { PenTool, FileCheck, SkipForward, Shield } from 'lucide-react'
import { esignApi } from '../../lib/api-services'
import Modal from './Modal'
import Button from './Button'

interface SignMethodChoiceProps {
  open: boolean
  onClose: () => void
  /** 员工ID */
  employeeId: string
  /** 员工姓名（用于显示） */
  employeeName: string
  /** 签署场景 */
  scene: 'CONTRACT' | 'RESIGNATION' | 'POLICY' | 'PAYSLIP' | 'ONBOARDING'
  /** 文件标题 */
  documentTitle: string
  /** 关联合同ID（可选） */
  contractId?: string
  /** 备注 */
  remark?: string
  /** 操作名称（如"重新入职"、"合同续签"） */
  actionName: string
}

const SCENE_LABELS: Record<string, string> = {
  CONTRACT: '劳动合同',
  RESIGNATION: '离职协议',
  POLICY: '规章制度',
  PAYSLIP: '工资条',
  ONBOARDING: '入职文件',
}

export default function SignMethodChoice({
  open,
  onClose,
  employeeId,
  employeeName,
  scene,
  documentTitle,
  contractId,
  remark,
  actionName,
}: SignMethodChoiceProps) {
  const navigate = useNavigate()
  const queryClient = useQueryClient()
  const [creating, setCreating] = useState(false)

  const createEsignMutation = useMutation({
    mutationFn: (data: any) => esignApi.create(data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['esign-records'] })
      toast.success('电子签署已发起，员工可在员工端查看并签署', {
        action: { label: '查看签署', onClick: () => navigate('/esign') },
      })
      onClose()
    },
    onError: (err: any) => toast.error(err?.response?.data?.error?.message || '创建失败'),
  })

  /** 选择电子签署 */
  const handleEsign = () => {
    setCreating(true)
    createEsignMutation.mutate({
      employeeId,
      contractId,
      scene,
      documentTitle,
      remark: remark || `${actionName}时自动发起`,
    })
    setCreating(false)
  }

  /** 选择线下手签 → 跳转到签署页面 */
  const handlePaperSign = () => {
    onClose()
    // 通过 URL 参数传递信息，签署页面读取后自动打开线下手签登记
    const params = new URLSearchParams({
      action: 'paper-sign',
      employeeId,
      scene,
      documentTitle,
    })
    if (contractId) params.set('contractId', contractId)
    navigate(`/esign?${params.toString()}`)
  }

  /** 跳过 */
  const handleSkip = () => {
    toast.info('已跳过签署，可稍后在「电子签署」页面手动发起')
    onClose()
  }

  return (
    <Modal open={open} onClose={onClose} title={`${actionName}成功 — 选择签署方式`} size="sm">
      <div className="space-y-4">
        <div className="text-sm text-gray-600 bg-gray-50 rounded-md p-3">
          <div className="font-medium text-gray-700">{employeeName} · {SCENE_LABELS[scene] || scene}</div>
          <div className="text-xs text-gray-400 mt-1">{documentTitle}</div>
        </div>

        <div className="text-xs text-gray-500 flex items-start gap-1.5">
          <Shield className="w-3.5 h-3.5 mt-0.5 shrink-0 text-primary" />
          <div>根据劳动合同法，{SCENE_LABELS[scene] || '文件'}需双方签署确认。请选择签署方式：</div>
        </div>

        <div className="space-y-2">
          {/* 电子签署 */}
          <button
            onClick={handleEsign}
            disabled={creating}
            className="w-full flex items-center gap-3 p-3 border-2 border-blue-200 bg-blue-50/50 rounded-lg hover:border-blue-400 hover:bg-blue-50 transition text-left disabled:opacity-50"
          >
            <div className="w-10 h-10 rounded-lg bg-blue-100 flex items-center justify-center shrink-0">
              <PenTool className="w-5 h-5 text-blue-600" />
            </div>
            <div className="flex-1 min-w-0">
              <div className="text-sm font-medium text-gray-800">电子签署</div>
              <div className="text-xs text-gray-500 mt-0.5">自动创建签署记录，员工在员工端通过验证码签署</div>
            </div>
          </button>

          {/* 线下手签 */}
          <button
            onClick={handlePaperSign}
            className="w-full flex items-center gap-3 p-3 border-2 border-orange-200 bg-orange-50/50 rounded-lg hover:border-orange-400 hover:bg-orange-50 transition text-left"
          >
            <div className="w-10 h-10 rounded-lg bg-orange-100 flex items-center justify-center shrink-0">
              <FileCheck className="w-5 h-5 text-orange-600" />
            </div>
            <div className="flex-1 min-w-0">
              <div className="text-sm font-medium text-gray-800">线下手签登记</div>
              <div className="text-xs text-gray-500 mt-0.5">跳转到签署页面，上传签署后的纸质文件扫描件</div>
            </div>
          </button>

          {/* 跳过 */}
          <button
            onClick={handleSkip}
            className="w-full flex items-center gap-3 p-3 border-2 border-gray-200 bg-gray-50/50 rounded-lg hover:border-gray-300 hover:bg-gray-50 transition text-left"
          >
            <div className="w-10 h-10 rounded-lg bg-gray-100 flex items-center justify-center shrink-0">
              <SkipForward className="w-5 h-5 text-gray-500" />
            </div>
            <div className="flex-1 min-w-0">
              <div className="text-sm font-medium text-gray-600">稍后处理</div>
              <div className="text-xs text-gray-400 mt-0.5">跳过签署，可稍后在「电子签署」页面手动发起</div>
            </div>
          </button>
        </div>
      </div>
    </Modal>
  )
}