/* Copyright 2021, Milkdown by Mirone. */
import type { Ctx } from '@milkdown/ctx'
import { editorViewCtx, parserCtx } from '@milkdown/core'
import { Slice } from '@milkdown/prose/model'

/// Insert markdown string into the editor.
export function insert(markdown: string) {
  return (ctx: Ctx) => {
    const view = ctx.get(editorViewCtx)
    const parser = ctx.get(parserCtx)
    const doc = parser(markdown)
    if (!doc)
      return

    const contentSlice = view.state.selection.content()
    return view.dispatch(
      view.state.tr
        .replaceSelection(new Slice(doc.content, contentSlice.openStart, contentSlice.openEnd))
        .scrollIntoView(),
    )
  }
}