<template>
  <div class="yaml-editor">
    <textarea ref="textarea" />
  </div>
</template>

<script>
import CodeMirror from 'codemirror'
import 'codemirror/addon/lint/lint.css'
import 'codemirror/lib/codemirror.css'
import 'codemirror/theme/monokai.css'
import 'codemirror/mode/yaml/yaml'
import 'codemirror/addon/lint/lint'
import 'codemirror/addon/lint/yaml-lint'
window.jsyaml = require('js-yaml') // 引入js-yaml為codemirror提高語法檢查核心支持
export default {
  name: 'YamlEditor',
  // eslint-disable-next-line vue/require-prop-types
  props: ['value'],
  data() {
    return {
      yamlEditor: false
    }
  },
  watch: {
    value(value) {
      const editorValue = this.yamlEditor.getValue()
      if (value !== editorValue) {
        this.yamlEditor.setValue(this.value)
      }
    }
  },
  mounted() {
    this.yamlEditor = CodeMirror.fromTextArea(this.$refs.textarea, {
      lineNumbers: true, // 顯示行號
      mode: 'text/x-yaml', // 語法model
      gutters: ['CodeMirror-lint-markers'],  // 語法檢查器
      theme: 'monokai', // 編輯器主題
      lint: true // 開啟語法檢查
    })
    this.yamlEditor.setValue(this.value)
    this.yamlEditor.on('change', (cm) => {
      this.$emit('changed', cm.getValue())
      this.$emit('input', cm.getValue())
    })
  },
  methods: {
    getValue() {
      return this.yamlEditor.getValue()
    }
  }
}
</script>

<style scoped>
.yaml-editor{
  height: 100%;
  position: relative;
}
.yaml-editor >>> .CodeMirror {
  height: auto;
  min-height: 300px;
}
.yaml-editor >>> .CodeMirror-scroll{
  min-height: 300px;
}
.yaml-editor >>> .cm-s-rubyblue span.cm-string {
  color: #F08047;
}
</style>

    this.yamlEditor = CodeMirror.fromTextArea(this.$refs.textarea, {
      lineNumbers: true, // 顯示行號
      mode: 'text/x-yaml', // 語法model
      gutters: ['CodeMirror-lint-markers'],  // 語法檢查器
      theme: 'monokai', // 編輯器主題
      lint: true // 開啟語法檢查
    })

<template>
  <div>
    <div class="editor-container">
      <yaml-editor  v-model="value" />
    </div>
  </div>
</template>

<script>
import YamlEditor from '@/components/YamlEditor/index.vue';
const yamlData = "- hosts: all\n  become: yes\n  become_method: sudo\n  gather_facts: no\n\n  tasks:\n  - name: \"install {{ package_name }}\"\n    package:\n      name: \"{{ package_name }}\"\n      state: \"{{ state | default('present') }}\"";
export default {
  name: 'YamlEditorDemo',
  components: { YamlEditor },
  data() {
    return {
      value: yamlData,
    };
  },
};
</script>

<style scoped>
.editor-container{
  position: relative;
  height: 100%;
}
</style>