import {
  DragEventHandler,
  RefObject,
} from 'react';

import {
  Box,
  BoxProps,
  Center,
  Flex,
  HStack,
  Image,
} from '@chakra-ui/react';
import {
  MdHighlightOff,
  MdUploadFile,
} from 'react-icons/md';

import { FormGroup } from '@/components/form/FormGroup';
import { UseFormidableReturn } from '@/components/form/Formidable';
import { DataUrlAccess } from '@/utils/data-url-access';

export type DragNdropProps = {
  onFilesSelected?: (file: File[]) => void;
  onUriSelected?: (uri: string) => void;
  width?: string;
  height?: string;
};

export const DragNdrop = ({
  onFilesSelected = () => { },
  onUriSelected = () => { },
  width = '100px',
  height = '100px',
}: DragNdropProps) => {
  const handleFileChange = (event) => {
    const selectedFiles = event.target.files;
    if (selectedFiles && selectedFiles.length > 0) {
      const newFiles: File[] = Array.from(selectedFiles);
      onFilesSelected(newFiles);
    }
  };
  const handleDrop = (eventInput: any) => {
    const event = eventInput as DragEvent;
    event.preventDefault();
    const droppedFiles = event.dataTransfer?.files;
    console.log('drop ...' + droppedFiles?.length);
    if (droppedFiles && droppedFiles?.length > 0) {
      const newFiles: File[] = Array.from(droppedFiles);
      onFilesSelected(newFiles);
    } else {
      console.log(`drop types: ${event.dataTransfer?.types}`);
      const listUri = event.dataTransfer?.getData('text/uri-list');
      console.log(`listUri: ${listUri}`);
      if (!listUri) {
        return;
      }
      onUriSelected(listUri);
    }
  };

  return (
    <Box
      width={width}
      height={height}
      border="2px"
      borderRadius="5px"
      borderStyle="dashed"
      onDrop={handleDrop}
      onDragOver={(event) => event.preventDefault()}
    >
      <label htmlFor="browse">
        <Box paddingY="15%" height="100%" cursor="pointer">
          <Center>
            <MdUploadFile size="50%" />
          </Center>
          <Center>
            <input
              type="file"
              hidden
              id="browse"
              onChange={handleFileChange}
              //accept=".pdf,.docx,.pptx,.txt,.xlsx"
              multiple
            />
            Browse files
          </Center>
        </Box>
      </label>
    </Box>
  );
};

export type CenterIconProps = BoxProps & {
  children: any;
  sizeIcon?: string;
};

export const CenterIcon = ({
  children,
  sizeIcon = '15px',
  ...rest
}: CenterIconProps) => {
  return (
    <Box position="relative" w={sizeIcon} h={sizeIcon} flex="none" {...rest}>
      <Box
        w={sizeIcon}
        h={sizeIcon}
        position="absolute"
        top="50%"
        left="50%"
        transform="translate(-50%, -50%)"
      >{children}</Box>
    </Box>
  );
};

export type FormCoversProps = {
  form: UseFormidableReturn;
  variableName: string;
  ref?: RefObject<any>;
  label?: string;
  isRequired?: boolean;
  onFilesSelected?: (files: File[]) => void;
  onUriSelected?: (uri: string) => void;
  onRemove?: (index: number) => void;
};

export const FormCovers = ({
  form,
  variableName,
  ref,
  onFilesSelected = () => { },
  onUriSelected = () => { },
  onRemove = () => { },
  ...rest
}: FormCoversProps) => {
  const urls =
    DataUrlAccess.getListThumbnailUrl(form.values[variableName]) ?? [];
  return (
    <FormGroup
      isModify={form.isModify[variableName]}
      onRestore={() => form.restoreValue({ [variableName]: true })}
      {...rest}
    >
      <HStack wrap="wrap" width="full">
        {urls.map((data, index) => (
          <Flex align="flex-start" key={data}>
            <Box width="125px" height="125px" position="relative">
              <Box width="125px" height="125px" position="absolute">
                <CenterIcon
                  width="125px"
                  sizeIcon="100%"
                  zIndex="+1"
                  color="#00000020"
                  _hover={{ color: 'red' }}
                  onClick={() => onRemove && onRemove(index)}
                ><MdHighlightOff /></CenterIcon>
              </Box>
              <Image loading="lazy" src={data} boxSize="full" />
            </Box>
          </Flex>
        ))}
        <Flex align="flex-start" key="data">
          <DragNdrop
            height="125px"
            width="125px"
            onFilesSelected={onFilesSelected}
            onUriSelected={onUriSelected}
          />
        </Flex>
      </HStack>
    </FormGroup>
  );
};