'use client';

import * as React from 'react';
import RouterLink from 'next/link';
import { useParams, useRouter } from 'next/navigation';
import { COL_LESSON_CATEGORIES, NS_LESSON_CATEGORY } from '@/constants';
import { zodResolver } from '@hookform/resolvers/zod';
import { LoadingButton } from '@mui/lab';
import { Avatar, Divider, MenuItem } from '@mui/material';
// import Avatar from '@mui/material/Avatar';
import Box from '@mui/material/Box';
import Button from '@mui/material/Button';
import Card from '@mui/material/Card';
import CardActions from '@mui/material/CardActions';
import CardContent from '@mui/material/CardContent';
// import Checkbox from '@mui/material/Checkbox';

import FormControl from '@mui/material/FormControl';
// import FormControlLabel from '@mui/material/FormControlLabel';
import FormHelperText from '@mui/material/FormHelperText';
import InputLabel from '@mui/material/InputLabel';
import OutlinedInput from '@mui/material/OutlinedInput';
import Select from '@mui/material/Select';
import Stack from '@mui/material/Stack';
import Typography from '@mui/material/Typography';
import Grid from '@mui/material/Unstable_Grid2';
import { Camera as CameraIcon } from '@phosphor-icons/react/dist/ssr/Camera';
import type { RecordModel } from 'pocketbase';
import { Controller, useForm } from 'react-hook-form';
import { useTranslation } from 'react-i18next';
import { z as zod } from 'zod';

import { paths } from '@/paths';
import { dayjs } from '@/lib/dayjs';
import { logger } from '@/lib/default-logger';
import { fileToBase64 } from '@/lib/file-to-base64';
import { pb } from '@/lib/pb';
import { Option } from '@/components/core/option';
import { TextEditor } from '@/components/core/text-editor/text-editor';
import { toast } from '@/components/core/toaster';
import FormLoading from '@/components/loading';

import ErrorDisplay from '../error';
import { defaultLessonCategory } from './_constants';
import type { EditFormProps, LessonCategory } from './type';

// TODO: review this
const schema = zod.object({
  cat_name: zod.string().min(1, 'name-is-required').max(255),
  //
  pos: zod.number().min(1, 'Phone is required').max(99),
  visible: zod.string().max(255),
  //
  description: zod.string().optional(),
  remarks: zod.string().optional(),
});

type Values = zod.infer<typeof schema>;

const defaultValues = {
  cat_name: '',
  // cat_image: undefined,
  pos: 0,
  visible: 'hidden',
  // lesson_id: 'default-lesson-id',
  description: 'default-description',
  remarks: 'default-remarks',
  //
} satisfies Values;

export function LessonCategoryEditForm(): React.JSX.Element {
  const router = useRouter();
  const { t } = useTranslation(['common', 'lesson_category']);

  const NS_DEFAULT = { ns: 'lesson_category' };

  const { cat_id: catId } = useParams<{ cat_id: string }>();
  //
  const [isUpdating, setIsUpdating] = React.useState<boolean>(false);
  const [showLoading, setShowLoading] = React.useState<boolean>(false);
  const [showError, setShowError] = React.useState<boolean>(false);

  const {
    control,
    handleSubmit,
    formState: { errors },
    setValue,
    reset,
    watch,
  } = useForm<Values>({ defaultValues, resolver: zodResolver(schema) });

  const onSubmit = React.useCallback(async (values: Values): Promise<void> => {
    setIsUpdating(true);
    const tempUpdate: EditFormProps = {
      cat_name: values.cat_name,
      pos: values.pos,
      visible: values.visible,
      description: values.description,
      remarks: values.remarks,
      type: '',
    };

    pb.collection(COL_LESSON_CATEGORIES)
      .update(catId, tempUpdate)
      .then((res) => {
        logger.debug(res);
        toast.success(t('update.success', NS_DEFAULT));
        router.push(paths.dashboard.lesson_categories.list);
      })
      .catch((err) => {
        logger.error(err);
        toast.error('Something went wrong!');
      })
      .finally(() => {
        //
        setIsUpdating(false);
      });
  }, []);

  const avatarInputRef = React.useRef<HTMLInputElement>(null);
  // const avatar = watch('avatar');

  const handleAvatarChange = React.useCallback(
    async (event: React.ChangeEvent<HTMLInputElement>) => {
      const file = event.target.files?.[0];

      if (file) {
        const url = await fileToBase64(file);
        // setValue('avatar', url);
      }
    },
    [setValue]
  );

  const [textDescription, setTextDescription] = React.useState<string>('loading');
  const [textRemarks, setTextRemarks] = React.useState<string>('loading');
  const handleLoad = React.useCallback(
    (id: string) => {
      setShowLoading(true);
      pb.collection(COL_LESSON_CATEGORIES)
        .getOne(id)
        .then((model: RecordModel) => {
          const temp: LessonCategory = { ...defaultLessonCategory, ...model };
          reset(temp);
          setTextDescription(temp.description);
          setTextRemarks(temp.remarks);
        })
        .catch((err) => {
          logger.error(err);
          toast(t('list.error', NS_DEFAULT));
        })
        .finally(() => {
          setShowLoading(false);
        });
    },
    // eslint-disable-next-line react-hooks/exhaustive-deps
    [catId]
  );

  React.useEffect(() => {
    handleLoad(catId);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [catId]);

  if (showLoading) return <FormLoading />;
  if (showError)
    return (
      <ErrorDisplay
        message={t('error.unable-to-process-request', NS_DEFAULT)}
        code="500"
        details={t('error.detailed-error-information', NS_DEFAULT)}
      />
    );

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <Card>
        <CardContent>
          <Stack divider={<Divider />} spacing={4}>
            <Stack spacing={3}>
              <Typography variant="h6">{t('edit.basic-info', NS_DEFAULT)}</Typography>
              <Grid container spacing={3}>
                <Grid xs={12}>
                  <Stack direction="row" spacing={3} sx={{ alignItems: 'center' }}>
                    <Box
                      sx={{
                        border: '1px dashed var(--mui-palette-divider)',
                        borderRadius: '5%',
                        display: 'inline-flex',
                        p: '4px',
                      }}
                    >
                      {/*
                      <Avatar
                        src={avatar}
                        sx={{
                          '--Avatar-size': '100px',
                          '--Icon-fontSize': 'var(--icon-fontSize-lg)',
                          alignItems: 'center',
                          bgcolor: 'var(--mui-palette-background-level1)',
                          color: 'var(--mui-palette-text-primary)',
                          display: 'flex',
                          justifyContent: 'center',
                        }}
                      >
                        // TODO: resume me
                         <CameraIcon fontSize="var(--Icon-fontSize)" />
                      </Avatar>
                       */}
                    </Box>
                    <Stack spacing={1} sx={{ alignItems: 'flex-start' }}>
                      <Typography variant="subtitle1">{t('edit.avatar', NS_DEFAULT)}</Typography>
                      <Typography variant="caption">{t('edit.avatarRequirements', NS_DEFAULT)}</Typography>
                      <Button
                        color="secondary"
                        onClick={() => {
                          avatarInputRef.current?.click();
                        }}
                        variant="outlined"
                      >
                        {t('edit.select', NS_DEFAULT)}
                      </Button>
                      <input hidden onChange={handleAvatarChange} ref={avatarInputRef} type="file" />
                    </Stack>
                  </Stack>
                </Grid>
                <Grid md={6} xs={12}>
                  <Controller
                    disabled={isUpdating}
                    control={control}
                    name="cat_name"
                    render={({ field }) => (
                      <FormControl disabled={isUpdating} error={Boolean(errors.cat_name)} fullWidth>
                        <InputLabel required>{t('edit.name', NS_DEFAULT)}</InputLabel>
                        <OutlinedInput {...field} />
                        {errors.cat_name ? <FormHelperText>{errors.cat_name.message}</FormHelperText> : null}
                      </FormControl>
                    )}
                  />
                </Grid>

                <Grid md={6} xs={12}>
                  <Controller
                    disabled={isUpdating}
                    control={control}
                    name="pos"
                    render={({ field }) => (
                      <FormControl error={Boolean(errors.pos)} fullWidth>
                        <InputLabel required>{t('edit.position', NS_DEFAULT)}</InputLabel>
                        <OutlinedInput
                          {...field}
                          onChange={(e) => {
                            field.onChange(parseInt(e.target.value));
                          }}
                          type="number"
                        />

                        {errors.pos ? <FormHelperText>{errors.pos.message}</FormHelperText> : null}
                      </FormControl>
                    )}
                  />
                </Grid>
                <Grid md={6} xs={12}>
                  <Controller
                    disabled={isUpdating}
                    control={control}
                    name="visible"
                    render={({ field }) => (
                      <FormControl error={Boolean(errors.visible)} fullWidth>
                        <InputLabel>{t('edit.visible', NS_DEFAULT)}</InputLabel>
                        <Select {...field}>
                          <MenuItem value="visible">{t('edit.visible', NS_DEFAULT)}</MenuItem>
                          <MenuItem value="hidden">{t('edit.hidden', NS_DEFAULT)}</MenuItem>
                        </Select>

                        {errors.visible ? <FormHelperText>{errors.visible.message}</FormHelperText> : null}
                      </FormControl>
                    )}
                  />
                </Grid>
              </Grid>
            </Stack>

            <Stack spacing={3}>
              <Typography variant="h6">{t('create.detail-information', NS_DEFAULT)}</Typography>
              <Grid container spacing={3}>
                <Grid md={6} xs={12}>
                  <Controller
                    disabled={isUpdating}
                    control={control}
                    name="description"
                    render={({ field }) => {
                      return (
                        <Box>
                          <Typography variant="subtitle1" color="text-secondary">
                            {t('create.description', NS_DEFAULT)}
                          </Typography>
                          <Box sx={{ mt: '8px', '& .tiptap-container': { height: '400px' } }}>
                            <TextEditor
                              {...field}
                              content={textDescription}
                              onUpdate={({ editor }) => {
                                field.onChange({ target: { value: editor.getHTML() } });
                              }}
                              placeholder={t('edit.write-something', NS_DEFAULT)}
                            />
                          </Box>
                        </Box>
                      );
                    }}
                  />
                </Grid>
                <Grid md={6} xs={12}>
                  <Controller
                    disabled={isUpdating}
                    control={control}
                    name="remarks"
                    render={({ field }) => (
                      <Box>
                        <Typography variant="subtitle1" color="text.secondary">
                          {t('create.remarks', NS_DEFAULT)}
                        </Typography>
                        <Box sx={{ mt: '8px', '& .tiptap-container': { height: '400px' } }}>
                          <TextEditor
                            content={textRemarks}
                            onUpdate={({ editor }) => {
                              field.onChange({ target: { value: editor.getText() } });
                            }}
                            hideToolbar
                            placeholder={t('edit.write-something', NS_DEFAULT)}
                          />
                        </Box>
                      </Box>
                    )}
                  />
                </Grid>
              </Grid>
            </Stack>
          </Stack>
        </CardContent>
        <CardActions sx={{ justifyContent: 'flex-end' }}>
          <Button color="secondary" component={RouterLink} href={paths.dashboard.lesson_types.list}>
            {t('edit.cancelButton', NS_DEFAULT)}
          </Button>

          <LoadingButton disabled={isUpdating} loading={isUpdating} type="submit" variant="contained">
            {t('edit.updateButton', NS_DEFAULT)}
          </LoadingButton>
        </CardActions>
      </Card>
    </form>
  );
}
