import {Stack, Typography, Grid2 as Grid, Button, MenuItem, Select, FormControl, InputLabel, TextField, Card, CardMedia, CardContent, CardActions} from '@mui/material'
import {useShow} from '@refinedev/core'
import {Show, TextFieldComponent} from '@refinedev/mui'

import {useEffect, useState} from 'react'
import axios from 'axios'

import {BACKEND_URL} from '../../lib/constants'

type MediaItem = {
  id: string
  filename: string
  media_type: string
}

export const ArticleShow = () => {
  const {query} = useShow({})
  const {data, isLoading} = query
  const record = data?.data

  const [media, setMedia] = useState<MediaItem[]>([])
  const [linkedMedia, setLinkedMedia] = useState<MediaItem[]>([])
  const [selectedMediaId, setSelectedMediaId] = useState<string>('')
  const [mediaOrder, setMediaOrder] = useState<number>(1)
  const [mediaLoading, setMediaLoading] = useState<boolean>(true)

  useEffect(() => {
    if (record?.id) {
      axios
        .get(`${BACKEND_URL}/article/${record.id}/media`)
        .then((response) => {
          setLinkedMedia(response?.data || [])
        })
        .catch(() => {
          setLinkedMedia([])
        })
    }
  }, [record?.id])

  useEffect(() => {
    axios
      .get(`${BACKEND_URL}/media`)
      .then((response) => {
        setMedia(response?.data || [])
        setMediaLoading(false)
      })
      .catch(() => {
        setMedia([])
        setMediaLoading(false)
      })
  }, [])

  const availableMedia = media.filter((mediaItem) => !linkedMedia.some((linkedItem) => linkedItem.id === mediaItem.id))

  const linkMedia = () => {
    if (selectedMediaId) {
      const requestData = {
        media_id: selectedMediaId,
        media_order: mediaOrder,
      }

      axios
        .post(`${BACKEND_URL}/article/${record?.id}/media`, requestData, {
          headers: {
            accept: 'application/json',
            'Content-Type': 'application/json',
          },
        })
        .then(() => {
          axios
            .get(`${BACKEND_URL}/article/${record?.id}/media`)
            .then((response) => {
              setLinkedMedia(response?.data || [])
              setMediaOrder(mediaOrder + 1)
              setSelectedMediaId('')
            })
            .catch(() => {
              setLinkedMedia([])
            })
        })
        .catch((error) => {
          console.error('Error linking media:', error)
        })
    }
  }

  const deleteMedia = (mediaId: string) => {
    axios
      .delete(`${BACKEND_URL}/article/${record?.id}/media`, {
        data: {media_id: mediaId},
      })
      .then(() => {
        setLinkedMedia((prevMedia) => prevMedia.filter((item) => item.id !== mediaId))
      })
      .catch((error) => {
        console.error('Error deleting media:', error)
      })
  }

  const fields = [
    // {label: 'ID', data: 'id'},
    {label: 'Заголовок', data: 'heading'},
    {label: 'Контент', data: 'body'},
  ]

  const mediaFields = [
    // {label: 'ID', data: 'id' as keyof MediaItem},
    {label: 'Имя', data: 'filename' as keyof MediaItem},
    {label: 'Тип', data: 'media_type' as keyof MediaItem},
  ]

  return (
    <Show isLoading={isLoading}>
      <Stack gap={4}>
        {fields.map(({label, data}) => (
          <Stack key={data} gap={1}>
            <Typography variant="h6" fontWeight="bold">
              {label}
            </Typography>
            <TextFieldComponent value={record?.[data] || ''} />
          </Stack>
        ))}

        <Stack gap={2}>
          <Typography variant="h6" fontWeight="bold">
            Медиа
          </Typography>
          <Grid container spacing={2}>
            {mediaLoading ? (
              <Typography>Загрузка медиа...</Typography>
            ) : linkedMedia.length > 0 ? (
              linkedMedia.map((mediaItem) => (
                <Grid key={mediaItem.id}>
                  <Card sx={{backgroundColor: '#1e1e1e', borderRadius: 2}}>
                    <CardMedia component="img" height="200" image={`${BACKEND_URL}/media/${mediaItem?.id}/download`} alt={mediaItem?.filename} sx={{objectFit: 'contain', backgroundColor: '#2e2e2e'}} />
                    <CardContent>
                      {mediaFields.map(({label, data}) => (
                        <Typography key={data} variant="body2" color="textSecondary">
                          <strong>{label}:</strong> {mediaItem?.[data]}
                        </Typography>
                      ))}
                    </CardContent>
                    <CardActions>
                      <Button variant="outlined" color="error" onClick={() => deleteMedia(mediaItem?.id)} fullWidth>
                        Отвязать
                      </Button>
                    </CardActions>
                  </Card>
                </Grid>
              ))
            ) : (
              <Typography>Нет привязанных медиа</Typography>
            )}
          </Grid>

          {/* sx={{width: '650px'}} */}
          <Stack gap={2} mt={4}>
            {' '}
            <Typography variant="h6" fontWeight="bold">
              Привязать медиа
            </Typography>
            <FormControl fullWidth>
              <InputLabel>Медиа</InputLabel>
              <Select value={selectedMediaId} onChange={(e) => setSelectedMediaId(e.target.value)} fullWidth>
                {availableMedia.map((mediaItem) => (
                  <MenuItem key={mediaItem.id} value={mediaItem.id}>
                    {mediaItem.filename}
                  </MenuItem>
                ))}
              </Select>
            </FormControl>
            <TextField type="number" label="Порядок отображения медиа" value={mediaOrder} onChange={(e) => setMediaOrder(Number(e.target.value))} fullWidth InputLabelProps={{shrink: true}} />
            <Button variant="contained" onClick={linkMedia} disabled={!selectedMediaId}>
              Привязать
            </Button>
          </Stack>
        </Stack>
      </Stack>
    </Show>
  )
}