<template>
  <div class="json-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/rubyblue.css'
import 'codemirror/mode/javascript/javascript'
import 'codemirror/addon/lint/lint'
import 'codemirror/addon/lint/json-lint'
// eslint-disable-next-line import/no-webpack-loader-syntax
require('script-loader!jsonlint')

export default {
  name: 'JsonEditor',
  /* eslint-disable vue/require-prop-types */
  props: ['value'],
  data () {
    return {
      jsonEditor: false
    }
  },
  watch: {
    value (value) {
      const editorValue = this.jsonEditor.getValue()
      if (value !== editorValue) {
        this.jsonEditor.setValue(JSON.stringify(this.value, null, 2))
      }
    }
  },
  mounted () {
    this.jsonEditor = CodeMirror.fromTextArea(this.$refs.textarea, {
      lineNumbers: true,
      mode: 'application/json',
      gutters: ['CodeMirror-lint-markers'],
      theme: 'rubyblue',
      lint: true
    })
    if (this.value === '') {
      this.jsonEditor.setValue('[]')
    } else {
      this.jsonEditor.setValue(this.value)
    }
    // this.jsonEditor.setValue(JSON.stringify(this.value, null, 2))
    this.jsonEditor.on('change', cm => {
      this.$emit('changed', cm.getValue())
      this.$emit('input', cm.getValue())
    })
  },
  methods: {
    getValue () {
      return this.jsonEditor.getValue()
    }
  }
}
</script>

<style lang="scss" scoped>
  .json-editor {
    height: 100%;
    position: relative;

    ::v-deep {
      .CodeMirror {
        height: auto;
        min-height: 300px;
        background: #ffffff;
      }
      .CodeMirror-linenumber {
        color: #C1A599;
      }
      .CodeMirror-cursor {
        border-left: 1px solid black;
      }
      .CodeMirror-scroll {
        min-height: 300px;
        .CodeMirror-gutters {
          background: #f7f7f7;
          border-right: 0px;
        }
      }
    }
  }
</style>
