import {
  Alert,
  Box,
  Button,
  Card,
  Flex,
  Group,
  Image,
  ScrollArea,
  Divider,
  Stack,
  Switch,
  Text,
  TextInput,
  Title,
  createStyles,
  useMantineTheme,
} from '@mantine/core';
import { useForm } from '@mantine/form';
import {
  IconAlertTriangle,
  IconBookmark,
  IconLink,
  IconPlaylistX,
  IconTrash,
  IconTypography,
} from '@tabler/icons-react';
import { useTranslation } from 'next-i18next';
import { useEffect } from 'react';
import { v4 } from 'uuid';
import { z } from 'zod';
import React from 'react';

import { useEditModeStore } from '../../components/Dashboard/Views/useEditModeStore';
import { IconSelector } from '../../components/IconSelector/IconSelector';
import { defineWidget } from '../helper';
import { IDraggableEditableListInputValue, IWidget } from '../widgets';

interface BookmarkItem {
  id: string;
  name: string;
  href: string;
  iconUrl: string;
  openNewTab: boolean;
  hideHostname: boolean;
  hideIcon: boolean;
}

const definition = defineWidget({
  id: 'bookmark',
  icon: IconBookmark,
  options: {
    name: {
      type: 'text',
      defaultValue: '',
      info: true,
      infoLink: "https://homarr.dev/docs/widgets/bookmarks/",
    },
    items: {
      type: 'draggable-editable-list',
      defaultValue: [],
      getLabel(data) {
        return data.name;
      },
      create() {
        return {
          id: v4(),
          name: 'Homarr Documentation',
          href: 'https://homarr.dev',
          iconUrl: '/imgs/logo/logo.png',
          openNewTab: false,
          hideHostname: false,
          hideIcon: false,
        };
      },
      itemComponent({ data, onChange, delete: deleteData }) {
        const { t } = useTranslation('modules/bookmark');
        const form = useForm({
          initialValues: data,
          validate: {
            name: (value) => {
              const validation = z.string().min(1).max(100).safeParse(value);
              if (validation.success) {
                return undefined;
              }

              return t('item.validation.length100');
            },
            href: (value) => {
              if (!z.string().min(1).max(200).safeParse(value).success) {
                return t('item.validation.length200');
              }

              if (!z.string().url().safeParse(value).success) {
                return t('item.validation.invalidLink');
              }

              return undefined;
            },
            iconUrl: (value) => {
              if (z.string().min(1).max(400).safeParse(value).success) {
                return undefined;
              }

              return t('item.validation.length400');
            },
          },
          validateInputOnChange: true,
          validateInputOnBlur: true,
        });

        useEffect(() => {
          if (!form.isValid()) {
            return;
          }

          onChange({ ...form.values, openNewTab: form.values.openNewTab });
        }, [form.values]);

        return (
          <form>
            <Stack>
              <TextInput
                icon={<IconTypography size="1rem" />}
                {...form.getInputProps('name')}
                label={t('item.name')}
                withAsterisk
              />
              <TextInput
                icon={<IconLink size="1rem" />}
                {...form.getInputProps('href')}
                label={t('item.url')}
                withAsterisk
              />
              <IconSelector
                defaultValue={data.iconUrl}
                value={form.values.iconUrl}
                onChange={(value) => {
                  form.setFieldValue('iconUrl', value ?? '');
                }}
              />
              <Switch
                {...form.getInputProps('openNewTab')}
                label={t('item.newTab')}
                checked={form.values.openNewTab}
              />
              <Switch
                {...form.getInputProps('hideHostname')}
                label={t('item.hideHostname')}
                checked={form.values.hideHostname}
              />
              <Switch
                {...form.getInputProps('hideIcon')}
                label={t('item.hideIcon')}
                checked={form.values.hideIcon}
              />
              <Button
                onClick={() => deleteData()}
                leftIcon={<IconTrash size="1rem" />}
                variant="light"
                type="button"
              >
                {t('item.delete')}
              </Button>
              {!form.isValid() && (
                <Alert color="red" icon={<IconAlertTriangle size="1rem" />}>
                  {t('item.validation.errorMsg')}
                </Alert>
              )}
            </Stack>
          </form>
        );
      },
    } satisfies IDraggableEditableListInputValue<BookmarkItem>,
    layout: {
      type: 'select',
      data: [
        { value: 'autoGrid', },
        { value: 'horizontal', },
        { value: 'vertical', },
      ],
      defaultValue: 'autoGrid',
    },
  },
  gridstack: {
    minWidth: 1,
    minHeight: 1,
    maxWidth: 24,
    maxHeight: 24,
  },
  component: BookmarkWidgetTile,
});

export type IBookmarkWidget = IWidget<(typeof definition)['id'], typeof definition>;

interface BookmarkWidgetTileProps {
  widget: IBookmarkWidget;
}

function BookmarkWidgetTile({ widget }: BookmarkWidgetTileProps) {
  const { classes } = useStyles();
  const { enabled: isEditModeEnabled } = useEditModeStore();
  const { fn, colors, colorScheme } = useMantineTheme();
  const { t } = useTranslation('modules/bookmark');

  if (widget.properties.items.length === 0) {
    return (
      <Stack align="center">
        <IconPlaylistX />
        <Stack spacing={0}>
          <Title order={5} align="center">
            {t('card.noneFound.title')}
          </Title>
          <Text align="center" size="sm">
            {t('card.noneFound.text')}
          </Text>
        </Stack>
      </Stack>
    );
  }

  switch (widget.properties.layout) {
    case 'autoGrid':
      return (
        <Stack h="100%" spacing={0}>
          <Title size="h4" px="0.25rem">{widget.properties.name}</Title>
          <Box
            className={classes.grid}
            mr={isEditModeEnabled && widget.properties.name === "" ? 'xl' : undefined}
            h="100%"
          >
            {widget.properties.items.map((item: BookmarkItem, index) => (
              <Card
                className={classes.autoGridItem}
                key={index}
                px="xl"
                radius="md"
                component="a"
                href={item.href}
                target={item.openNewTab ? '_blank' : undefined}
                withBorder
                bg={colorScheme === 'dark' ? colors.dark[5].concat('80') : colors.blue[0].concat('80')}
                sx={{
                  '&:hover': { backgroundColor: fn.primaryColor().concat('40'), }, //'40' = 25% opacity
                  flex:'1 1 auto',
                }}
                display="flex"
              >
                <BookmarkItemContent item={item} />
              </Card>
            ))}
          </Box>
        </Stack>
      );
    case 'horizontal':
    case 'vertical':
      return (
        <Stack h="100%" spacing={0}>
          <Title size="h4" px="0.25rem">
            {widget.properties.name}
          </Title>
          <ScrollArea
            scrollbarSize={8}
            type="auto"
            h="100%"
            offsetScrollbars
            mr={isEditModeEnabled && widget.properties.name === ""? 'xl' : undefined}
            styles={{
              viewport:{
                //mantine being mantine again... this might break. Needed for taking 100% of widget space
                '& div[style="min-width: 100%; display: table;"]':{
                  height:'100%',
                },
              },
            }}
          >
            <Flex
              direction={ widget.properties.layout === 'vertical' ? 'column' : 'row' }
              gap="0"
              h="100%"
            >
              {widget.properties.items.map((item: BookmarkItem, index) => (
                <>
                  <Divider
                    m="1px"
                    orientation={ widget.properties.layout !== 'vertical' ? 'vertical' : 'horizontal' } //Mantine doesn't let me refactor this, I tried
                    hidden={!(index > 0)}
                  />
                  <Card
                    key={index}
                    px="md"
                    py="1px"
                    component="a"
                    href={item.href}
                    target={item.openNewTab ? '_blank' : undefined}
                    radius="md"
                    bg="transparent"
                    sx={{
                      '&:hover': { backgroundColor: fn.primaryColor().concat('40'),}, //'40' = 25% opacity
                      flex:'1 1 auto'
                    }}
                    display="flex"
                  >
                    <BookmarkItemContent item={item}/>
                  </Card>
                </>
              ))}
            </Flex>
          </ScrollArea>
        </Stack>
      );
    default:
      return null;
  }
}

const BookmarkItemContent = ({ item }: { item: BookmarkItem }) => {
  const { colorScheme } = useMantineTheme();
  return (
  <Group spacing="0rem 1rem">
    <Image
      hidden={item.hideIcon}
      src={item.iconUrl}
      width={47}
      height={47}
      fit="contain"
      withPlaceholder />
    <Stack spacing={0}>
      <Text size="md">{item.name}</Text>
      <Text
        color={colorScheme === 'dark' ? "gray.6" : "gray.7"}
        size="sm"
        hidden={item.hideHostname}
      >
        {new URL(item.href).hostname}
      </Text>
    </Stack>
  </Group>
)};

const useStyles = createStyles(() => ({
  grid: {
    display: 'grid',
    gap: 10,
    gridTemplateColumns: 'repeat(auto-fit, minmax(150px, 1fr))',
  },
  autoGridItem: {
    flex: '1 1 auto',
  },
}));

export default definition;