'use babel';

import { CompositeDisposable } from 'atom';

export default {

  subscriptions: null,

  activate(state) {

    // Events subscribed to in atom's system can be easily cleaned up with a CompositeDisposable
    this.subscriptions = new CompositeDisposable();

    // Register command that toggles this view
    this.subscriptions.add(atom.commands.add('atom-workspace', {
      'latex-helper:convert-to-display-math': () => this.convertToDisplayMath(),
      'latex-helper:convert-to-abs': () => this.convertToAbs(),
      'latex-helper:mathify-comma-list': () => this.mathifyList(),
      'latex-helper:insert-backslash-comma': () => this.insertBackslashComma(),
    }));
  },

  deactivate() {
    this.subscriptions.dispose();
  },


  convertToDisplayMath() {
     const editor = atom.workspace.getActiveTextEditor()
     if (editor) {
         const selection = editor.getSelectedText()
         const strippedText = selection.replace(/\$/g, '')
         editor.insertText("\\[\n" + strippedText.trim() + "\n\\]")
     }
 },

  convertToAbs() {
     const editor = atom.workspace.getActiveTextEditor()
     if (editor) {
         const selection = editor.getSelectedText()
         const strippedText = selection
            .replace(/\\mid/g, '')
            .replace(/\|/g,'')
            .replace(/\\left/g,'')
            .replace(/\\right/g,'')
         editor.insertText("\\abs{" + strippedText.trim() + "}")
     }
 },

  mathifyList() {
     const editor = atom.workspace.getActiveTextEditor()
     if (editor) {
         const selection = editor.getSelectedText()
         const items = selection.replace('$','').split(',').map((item) => item.trim())
         editor.insertText("$" + items.join('$, $') + "$")
     }
 },

  insertBackslashComma() {
     const editor = atom.workspace.getActiveTextEditor()
     if (editor) {
       editor.insertText('\\,')
     }
 },

};