import {
  Box,
  Button,
  Card,
  FileInput,
  Group,
  Stack,
  Text,
  TextInput,
  Textarea,
} from '@mantine/core'
import { notifications } from '@mantine/notifications'
import {
  IconDownload,
  IconFileTypeDocx,
  IconFileTypePdf,
  IconFileTypeXls,
  IconPhoto,
  IconSearch,
  IconTrash,
} from '@tabler/icons-react'
import { useState } from 'react'
import classes from './FileUploadForm.module.css'

// type TFileProfile = {
//   label: string
//   type: string
//   value: string
//   children?: TFileProfile[]
// }

interface FileData {
  id: number
  name: string
  url: string
  type: string
  description?: string
  created_at: string
}

type FileUploadFormProps = {
  data: FileData[];
  handleSubmit: (e: React.FormEvent, fileName: string, description: string, currentUser: string) => Promise<boolean | void>;
  handleFileChange: (file: File | null) => void;
  removeFile: (id: number) => Promise<void>;
  isLoading: boolean;
  currentUser: string;
};

const FileUploadForm = ({
  data,
  handleSubmit,
  handleFileChange,
  removeFile,
  isLoading,
  currentUser,
}: FileUploadFormProps) => {
  const [selectedFile, setSelectedFile] = useState<File | null>(null)
  const [fileName, setFileName] = useState('')
  const [description, setDescription] = useState('')
  const [isUploading, setIsUploading] = useState(false)
  const [searchTerm, setSearchTerm] = useState('')

  const handleFileSelect = (file: File | null) => {
    setSelectedFile(file)
    handleFileChange(file)
    if (file) {
      // Set default name as file name without extension
      setFileName(file.name.split('.')[0])
    }
  }

  const handleFormSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
    setIsUploading(true)
    
    try {
      await handleSubmit(e, fileName, description, currentUser)
      notifications.show({
        title: 'Thành công',
        message: 'Tải file lên thành công',
        color: 'green',
      })
      setFileName('')
      setDescription('')
      setSelectedFile(null)
    } catch (error) {
      console.error('Error submitting form:', error)
      notifications.show({
        title: 'Lỗi',
        message: 'Không thể tải file lên',
        color: 'red',
      })
    } finally {
      setIsUploading(false)
    }
  }

  const getFileIcon = (type: string) => {
    switch (type) {
      case 'document':
        return <IconFileTypeDocx size={16} />
      case 'image':
        return <IconPhoto size={16} />
      case 'spreadsheet':
        return <IconFileTypeXls size={16} />
      default:
        return <IconFileTypePdf size={16} />
    }
  }

  const filteredFiles = data.filter(
    (file) =>
      file.name.toLowerCase().includes(searchTerm.toLowerCase()) ||
      (file.description &&
        file.description.toLowerCase().includes(searchTerm.toLowerCase())),
  )

  return (
    <>
      {isLoading && (
        <div className={classes.loadingOverlay}>
          <div className={classes.loadingSpinner} />
        </div>
      )}

      <form onSubmit={handleFormSubmit}>
        <Box>
          <Text className={classes.sectionTitle}>Tài liệu</Text>

          <Box className={classes.fileInputGroup}>
            <FileInput
              label="Chọn file"
              placeholder="Chọn file để tải lên"
              accept="image/png,image/jpeg,image/jpg,application/pdf,application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document,application/vnd.ms-excel,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.oasis.opendocument.spreadsheet"
              onChange={handleFileSelect}
              value={selectedFile}
              className={classes.fileInput}
            />

            <TextInput
              label="Tên file"
              placeholder="Nhập tên file"
              value={fileName}
              onChange={(e) => setFileName(e.target.value)}
              className={classes.fileNameInput}
              required
            />

            <Textarea
              label="Mô tả"
              placeholder="Nhập mô tả cho file"
              value={description}
              onChange={(e) => setDescription(e.target.value)}
              className={classes.descriptionInput}
              minRows={3}
            />

            <Button
              type="submit"
              color="blue"
              className={classes.saveButton}
              disabled={isLoading || isUploading || !selectedFile || !fileName}
              loading={isLoading || isUploading}
            >
              {isLoading || isUploading ? 'Đang xử lý...' : 'Lưu thay đổi'}
            </Button>
          </Box>

          <Box className={classes.fileListContainer}>
            <TextInput
              placeholder="Tìm kiếm theo tên hoặc mô tả..."
              leftSection={<IconSearch size={14} />}
              value={searchTerm}
              onChange={(e) => setSearchTerm(e.target.value)}
              className={classes.searchInput}
            />

            <Stack className={classes.fileList} gap="xs">
              {filteredFiles.map((file) => (
                <Card
                  key={file.id}
                  shadow="xs"
                  padding="xs"
                  radius="sm"
                  withBorder
                >
                  <Group justify="space-between" gap="xs" wrap="nowrap">
                    <Group gap="xs" className={classes.cardContent}>
                      {getFileIcon(file.type)}
                      <Box style={{ minWidth: 0 }}>
                        <Text size="xs" fw={500} className={classes.cardTitle}>
                          {file.name}
                        </Text>
                        {file.description && (
                          <Text
                            size="xs"
                            c="dimmed"
                            className={classes.cardDescription}
                          >
                            {file.description}
                          </Text>
                        )}
                        <Text size="xs" c="dimmed">
                          Uploaded:{' '}
                          {new Date(file.created_at).toLocaleDateString()}
                        </Text>
                      </Box>
                    </Group>
                    <Group gap="xs" wrap="nowrap">
                      <Button
                        size="xs"
                        variant="light"
                        color="blue"
                        component="a"
                        href={`${import.meta.env.VITE_BACKEND_URL}${
                          import.meta.env.VITE_BACKEND_URL?.includes(
                            'localhost',
                          )
                            ? ''
                            : 'image/'
                        }${file.url.slice(1)}`}
                        target="_blank"
                      >
                        <Group gap={2}>
                          <IconDownload size={12} />
                        </Group>
                      </Button>
                      <Button
                        size="xs"
                        variant="light"
                        color="red"
                        onClick={() => removeFile(file.id)}
                      >
                        <Group gap={2}>
                          <IconTrash size={12} />
                        </Group>
                      </Button>
                    </Group>
                  </Group>
                </Card>
              ))}
            </Stack>
          </Box>
        </Box>
      </form>
    </>
  )
}

export default FileUploadForm