// From https://github.com/ProseMirror/prosemirror-markdown/blob/master/src/from_markdown.js
import { MarkdownParser } from 'prosemirror-markdown'
import markdownit from 'markdown-it'
import markdownitMark from 'markdown-it-mark'

import schema from './schema.js'

export default new MarkdownParser(
  schema,
  markdownit('commonmark', { html: false })
    .use(markdownitMark)
    .enable('strikethrough'),
  {
    blockquote: { block: 'blockquote' },
    paragraph: { block: 'paragraph' },
    list_item: { block: 'list_item' },
    bullet_list: { block: 'bullet_list' },
    ordered_list: {
      block: 'ordered_list',
      getAttrs: tok => ({ order: +tok.attrGet('start') || 1 }),
    },
    heading: {
      block: 'heading',
      getAttrs: tok => ({ level: +tok.tag.slice(1) }),
    },
    code_block: { block: 'code_block' },
    fence: {
      block: 'code_block',
      getAttrs: tok => ({ params: tok.info || '' }),
    },
    hr: { node: 'horizontal_rule' },
    image: {
      node: 'image',
      getAttrs: tok => ({
        src: tok.attrGet('src'),
        title: tok.attrGet('title') || null,
        alt: (tok.children[0] && tok.children[0].content) || null,
      }),
    },
    hardbreak: { node: 'hard_break' },

    em: { mark: 'em' },
    strong: { mark: 'strong' },
    mark: { mark: 'mark' },
    s: { mark: 'strikethrough' },
    link: {
      mark: 'link',
      getAttrs: tok => ({
        href: tok.attrGet('href'),
        title: tok.attrGet('title') || null,
      }),
    },
    code_inline: { mark: 'code' },
  },
)