'use client'
/* eslint-disable react-hooks/exhaustive-deps */
import mitraKolaborasi from '@/app/admin/(dashboard)/_state/inovasi/mitra-kolaborasi';
import colors from '@/con/colors';
import ApiFetch from '@/lib/api-fetch';
import {
  ActionIcon,
  Box,
  Button,
  Center,
  Group,
  Image,
  Loader,
  Paper,
  Stack,
  Text,
  TextInput,
  Title
} from '@mantine/core';
import { Dropzone } from '@mantine/dropzone';
import {
  IconArrowBack,
  IconImageInPicture,
  IconPhoto,
  IconUpload,
  IconX,
} from '@tabler/icons-react';
import { useParams, useRouter } from 'next/navigation';
import { useEffect, useState } from 'react';
import { toast } from 'react-toastify';
import { useProxy } from 'valtio/utils';

function EditMitraKolaborasi() {
  const state = useProxy(mitraKolaborasi);
  const router = useRouter();
  const params = useParams();

  const [previewImage, setPreviewImage] = useState<string | null>(null);
  const [file, setFile] = useState<File | null>(null);
  const [isSubmitting, setIsSubmitting] = useState(false);

  // Local form state (controlled)
  const [formData, setFormData] = useState({
    name: '',
    imageId: '',
  });

  const [originalData, setOriginalData] = useState({
    name: '',
    imageId: '',
    imageUrl: '',
  });

  // Load data ke state lokal sekali saja
  useEffect(() => {
    const loadData = async () => {
      const id = params?.id as string;
      if (!id) return;

      try {
        const data = await state.update.load(id);
        if (data) {
          setFormData({
            name: data.name || '',
            imageId: data.imageId || '',
          });
          setOriginalData({
            name: data.name || '',
            imageId: data.imageId || '',
            imageUrl: data.image?.link || '',
          });

          if (data?.image?.link) {
            setPreviewImage(data.image.link);
          }
        }
      } catch (error) {
        console.error('Error loading data:', error);
        toast.error('Gagal memuat data mitra');
      }
    };

    loadData();
  }, [params?.id]);

  const handleChange = (key: string, value: string) => {
    setFormData((prev) => ({
      ...prev,
      [key]: value,
    }));
  };

  const handleResetForm = () => {
    setFormData({
      name: originalData.name,
      imageId: originalData.imageId,
    });
    setPreviewImage(originalData.imageUrl || null);
    setFile(null);
    toast.info('Form dikembalikan ke data awal');
  };

  const handleSubmit = async () => {
    try {
      setIsSubmitting(true);
      // upload file jika ada
      let imageId = formData.imageId;
      if (file) {
        const res = await ApiFetch.api.fileStorage.create.post({
          file,
          name: file.name,
        });
        const uploaded = res.data?.data;
        if (!uploaded?.id) {
          return toast.error('Gagal upload gambar');
        }
        imageId = uploaded.id;
      }

      // update global state hanya saat submit
      state.update.form = {
        ...state.update.form,
        name: formData.name,
        imageId,
      };

      await state.update.update();
      toast.success('Mitra berhasil diperbarui!');
      router.push('/admin/inovasi/kolaborasi-inovasi/mitra-kolaborasi');
    } catch (error) {
      console.error('Error updating mitra:', error);
      toast.error('Terjadi kesalahan saat memperbarui mitra');
    } finally {
      setIsSubmitting(false);
    }
  };

  return (
    <Box px={{ base: 'sm', md: 'lg' }} py="md">
      {/* Header */}
      <Group mb="md">
        <Button variant="subtle" onClick={() => router.back()} p="xs" radius="md">
          <IconArrowBack color={colors['blue-button']} size={24} />
        </Button>
        <Title order={4} ml="sm" c="dark">
          Edit Mitra
        </Title>
      </Group>

      {/* Form Card */}
      <Paper
        w={{ base: '100%', md: '50%' }}
        bg={colors['white-1']}
        p="lg"
        radius="md"
        shadow="sm"
        style={{ border: '1px solid #e0e0e0' }}
      >
        <Stack gap="md">
          {/* Input Nama */}
          <TextInput
            label="Nama Mitra"
            placeholder="Masukkan nama mitra"
            value={formData.name}
            onChange={(e) => handleChange('name', e.target.value)}
            required
          />

          {/* Upload Foto */}
          <Box>
            <Text fw="bold" fz="sm" mb={6}>
              Upload Foto
            </Text>
            <Dropzone
              onDrop={(files) => {
                const selectedFile = files[0];
                if (selectedFile) {
                  setFile(selectedFile);
                  setPreviewImage(URL.createObjectURL(selectedFile));
                }
              }}
              onReject={() => toast.error('File tidak valid, gunakan format gambar')}
              maxSize={5 * 1024 ** 2}
              accept={{ 'image/*': ['.jpeg', '.jpg', '.png', '.webp'] }}
              radius="md"
              p="xl"
            >
              <Group justify="center" gap="xl" mih={180}>
                <Dropzone.Accept>
                  <IconUpload size={48} color={colors['blue-button']} stroke={1.5} />
                </Dropzone.Accept>
                <Dropzone.Reject>
                  <IconX size={48} color="red" stroke={1.5} />
                </Dropzone.Reject>
                <Dropzone.Idle>
                  <IconPhoto size={48} color="#868e96" stroke={1.5} />
                </Dropzone.Idle>
                <Stack gap="xs" align="center">
                  <Text size="md" fw={500}>
                    Seret gambar atau klik untuk memilih file
                  </Text>
                  <Text size="sm" c="dimmed">
                    Maksimal 5MB, format gambar .png, .jpg, .jpeg, webp
                  </Text>
                </Stack>
              </Group>
            </Dropzone>

            {/* Preview Foto */}
            {previewImage ? (
              <Box pos={"relative"} mt="sm" style={{ display: 'flex', justifyContent: 'center' }}>
                <Image
                  src={previewImage}
                  alt="Preview Gambar"
                  radius="md"
                  style={{
                    maxHeight: 220,
                    objectFit: 'contain',
                    border: `1px solid ${colors['blue-button']}`,
                  }}
                  loading="lazy"
                />
                <ActionIcon
                  variant="filled"
                  color="red"
                  radius="xl"
                  size="sm"
                  pos="absolute"
                  top={5}
                  right={5}
                  onClick={() => {
                    setPreviewImage(null);
                    setFile(null);
                  }}
                  style={{
                    boxShadow: '0 2px 6px rgba(0,0,0,0.15)',
                  }}
                >
                  <IconX size={14} />
                </ActionIcon>
              </Box>
            ) : (
              <Center w={200} h={200} bg="gray.1" mt="sm" style={{ borderRadius: 8 }}>
                <IconImageInPicture size={48} color="#868e96" />
              </Center>
            )}
          </Box>

          {/* Submit */}
          <Group justify="right">
            <Button
              variant="outline"
              color="gray"
              radius="md"
              size="md"
              onClick={handleResetForm}
            >
              Batal
            </Button>

            {/* Tombol Simpan */}
            <Button
              onClick={handleSubmit}
              radius="md"
              size="md"
              style={{
                background: `linear-gradient(135deg, ${colors['blue-button']}, #4facfe)`,
                color: '#fff',
                boxShadow: '0 4px 15px rgba(79, 172, 254, 0.4)',
              }}
            >
              {isSubmitting ? <Loader size="sm" color="white" /> : 'Simpan'}
            </Button>
          </Group>
        </Stack>
      </Paper>
    </Box>
  );
}

export default EditMitraKolaborasi;
