'use client'

import React, { useState } from 'react'
import { useForm } from 'react-hook-form'
import { z } from 'zod'
import { zodResolver } from '@hookform/resolvers/zod'
import { trpc } from '@/lib/trpc'
import { Button } from '@/components/ui/button'
import { Input } from '@/components/ui/input'
import { Dialog, DialogTrigger } from '@/components/ui/dialog'
import { Plus } from 'lucide-react'
import { toast } from 'sonner'
import { FormDialog, FormActionBar, FormGridContent, FormCancelAction, FormSubmitAction, type FormFieldConfig } from '@/components/common/form-dialog'
import {
  AdvancedSelect,
  SelectPopover,
  SelectTrigger,
  SelectContent,
  SelectInput,
  SelectItemList,
  SelectedName
} from '@/components/common/advanced-select'
import { useSmartSelectOptions } from '@/hooks/use-smart-select-options'
import { Textarea } from '@/components/ui/textarea'

// 创建院系管理员的 schema
const createDeptAdminSchema = z.object({
  uid: z.string().min(1, '用户ID不能为空'),
  deptCode: z.string().min(1, '院系代码不能为空'),
  adminEmail: z.string().email('邮箱格式不正确').optional().or(z.literal('')),
  adminLinePhone: z.string().optional(),
  adminMobilePhone: z.string().optional(),
  note: z.string().optional(),
})

type CreateDeptAdminInput = z.input<typeof createDeptAdminSchema>

const createDeptAdminDefaultValues: CreateDeptAdminInput = {
  uid: '',
  deptCode: '',
  adminEmail: '',
  adminLinePhone: '',
  adminMobilePhone: '',
  note: '',
}

interface DeptAdminCreateDialogProps {
  onDeptAdminCreated: () => void
}

export function DeptAdminCreateDialog({ onDeptAdminCreated }: DeptAdminCreateDialogProps) {
  // 表单 dialog 控制
  const [isCreateDialogOpen, setIsCreateDialogOpen] = useState(false)

  // react-hook-form 管理创建表单
  const createForm = useForm<CreateDeptAdminInput>({
    resolver: zodResolver(createDeptAdminSchema),
    defaultValues: createDeptAdminDefaultValues,
  })

  // 获取院系列表
  const { data: depts } = trpc.common.getDepts.useQuery()

  const deptOptions = depts?.map(dept => ({ id: dept.code, name: dept.fullName, shortName: dept.name })) || []
  const { sortedOptions: sortedDeptOptions, logSelection: logDeptSelection } = useSmartSelectOptions({
    options: deptOptions,
    context: 'deptAdmin.create.dept',
    scope: 'personal',
  })

  // 创建院系管理员 mutation
  const createDeptAdminMutation = trpc.deptAdmin.create.useMutation({
    onSuccess: () => {
      setIsCreateDialogOpen(false)
      createForm.reset(createDeptAdminDefaultValues)
      toast.success('院系管理员创建成功')
      onDeptAdminCreated()
    },
    onError: (error) => {
      toast.error(error.message || '创建院系管理员失败')
    },
  })

  // 定义字段配置
  const formFields: FormFieldConfig[] = React.useMemo(() => [
    {
      name: 'uid',
      label: '用户ID',
      required: true,
      render: ({ field }) => (
        <Input {...field} placeholder="请输入用户ID（职工号）" />
      ),
    },
    {
      name: 'deptCode',
      label: '院系',
      required: true,
      render: ({ field }) => (
        <AdvancedSelect
          {...field}
          options={sortedDeptOptions}
          onChange={(value) => { logDeptSelection(value); field.onChange(value) }}
          filterFunction={(option, searchValue) => {
            const search = searchValue.toLowerCase()
            return option.id.includes(search) || option.name.toLowerCase().includes(search) ||
                  (option.shortName && option.shortName.toLowerCase().includes(search))
          }}
        >
          <SelectPopover>
            <SelectTrigger placeholder="请选择院系">
              <SelectedName />
            </SelectTrigger>
            <SelectContent>
              <SelectInput placeholder="搜索院系名称/代码" />
              <SelectItemList />
            </SelectContent>
          </SelectPopover>
        </AdvancedSelect>
      ),
    },
    {
      name: 'adminEmail',
      label: '邮箱',
      render: ({ field }) => (
        <Input {...field} type="email" placeholder="请输入邮箱" />
      ),
    },
    {
      name: 'adminLinePhone',
      label: '座机',
      render: ({ field }) => (
        <Input {...field} placeholder="请输入座机号码" />
      ),
    },
    {
      name: 'adminMobilePhone',
      label: '手机',
      render: ({ field }) => (
        <Input {...field} placeholder="请输入手机号码" />
      ),
    },
    {
      name: 'note',
      label: '备注',
      render: ({ field }) => (
        <Textarea {...field} placeholder="请输入备注信息" className="min-h-[80px]" />
      ),
    },
  ], [sortedDeptOptions, logDeptSelection])

  const handleSubmit = async (data: CreateDeptAdminInput) => {
    createDeptAdminMutation.mutate(data)
  }

  const handleClose = () => {
    setIsCreateDialogOpen(false)
  }

  return (
    <>
      <Dialog open={isCreateDialogOpen} onOpenChange={setIsCreateDialogOpen}>
        <DialogTrigger asChild>
          <Button className="flex items-center gap-2">
            <Plus className="h-4 w-4" />
            创建院系管理员
          </Button>
        </DialogTrigger>
      </Dialog>
      
      <FormDialog
        isOpen={isCreateDialogOpen}
        title="创建院系管理员"
        description="请填写院系管理员信息"
        form={createForm}
        fields={formFields}
        onClose={handleClose}
      >
        <FormGridContent />
        <FormActionBar>
          <FormCancelAction />
          <FormSubmitAction onSubmit={handleSubmit} isSubmitting={createDeptAdminMutation.isPending}>创建</FormSubmitAction>
        </FormActionBar>
      </FormDialog>
    </>
  )
}