<template>
  <div class="form">
    <div class="form__label">
      Title
    </div>
    <div v-if="title" class="form__item form__item--title">
      <editor-content :editor="title" />
    </div>
    <div class="form__label">
      Tasks
    </div>
    <div v-if="tasks" class="form__item form__item--tasks">
      <editor-content :editor="tasks" />
    </div>
    <div class="form__label">
      Description
    </div>
    <div v-if="description" class="form__item form__item--description">
      <editor-content :editor="description" />
    </div>
    <div class="form__label">
      JSON
    </div>
    <div class="form__item form__item--json">
      <code>{{ json }}</code>
    </div>
  </div>
</template>

<script>
import { Editor, EditorContent } from '@tiptap/vue-3'
import Document from '@tiptap/extension-document'
import Paragraph from '@tiptap/extension-paragraph'
import Text from '@tiptap/extension-text'
import Bold from '@tiptap/extension-bold'
import TaskList from '@tiptap/extension-task-list'
import TaskItem from '@tiptap/extension-task-item'
import Collaboration from '@tiptap/extension-collaboration'
import * as Y from 'yjs'
import { yDocToProsemirrorJSON } from 'y-prosemirror'

const ParagraphDocument = Document.extend({
  content: 'paragraph',
})

const TaskListDocument = Document.extend({
  content: 'taskList',
})

const CustomTaskItem = TaskItem.extend({
  content: 'text*',
})

export default {
  components: {
    EditorContent,
  },

  data() {
    return {
      title: null,
      tasks: null,
      description: null,
      ydoc: new Y.Doc(),
    }
  },

  mounted() {
    this.title = new Editor({
      extensions: [
        ParagraphDocument,
        Paragraph,
        Text,
        Collaboration.configure({
          document: this.ydoc,
          field: 'title',
        }),
      ],
      content: '<p>No matter what you do, this will be a single paragraph.',
    })

    this.tasks = new Editor({
      extensions: [
        TaskListDocument,
        Paragraph,
        Text,
        TaskList,
        CustomTaskItem,
        Collaboration.configure({
          document: this.ydoc,
          field: 'tasks',
        }),
      ],
      content: `
        <ul data-type="taskList">
          <li data-type="taskItem" data-checked="true">And this</li>
          <li data-type="taskItem" data-checked="false">is a task list</li>
          <li data-type="taskItem" data-checked="false">and only a task list.</li>
        </ul>
      `,
    })

    this.description = new Editor({
      extensions: [
        Document,
        Paragraph,
        Text,
        Bold,
        Collaboration.configure({
          document: this.ydoc,
          field: 'description',
        }),
      ],
      content: `
        <p>
          <strong>Lengthy text</strong>
        </p>
        <p>
          This can be lengthy text.
        </p>
      `,
    })
  },

  computed: {
    json() {
      return {
        title: yDocToProsemirrorJSON(this.ydoc, 'title'),
        tasks: yDocToProsemirrorJSON(this.ydoc, 'tasks'),
        description: yDocToProsemirrorJSON(this.ydoc, 'description'),
      }
    },
  },

  beforeUnmount() {
    this.title.destroy()
    this.tasks.destroy()
    this.description.destroy()
    this.provider.destroy()
  },
}
</script>

<style lang="scss">
.ProseMirror {
  > * + * {
    margin-top: 0.75em;
  }

  ul[data-type="taskList"] {
    list-style: none;
    padding: 0;

    li {
      display: flex;
      align-items: center;

      > label {
        flex: 0 0 auto;
        margin-right: 0.5rem;
        user-select: none;
      }

      > div {
        flex: 1 1 auto;
      }
    }
  }
}

.form__label {
  color: #868e96;
  text-transform: uppercase;
  font-weight: bold;
  font-size: 0.7rem;
  letter-spacing: 1px;
}

.form__item {
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  border-radius: 5px;
  border: 1px solid #e9ecef;
  transition: .1s all ease-in-out;

  &:hover {
    border-color: #68CEF8;
  }

  &--title {
    font-size: 1.5rem;
  }

  &--json {
    background: #0D0D0D;
    color: #FFF;
    font-size: 0.8rem;
  }
}

pre {
  font-family: 'JetBrainsMono', monospace;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;

  code {
    color: inherit;
    padding: 0;
    background: none;
    font-size: 0.8rem;
  }
}
</style>
