// ==UserScript==
// @name         Overleaf Editor Custom VIM Keybindings
// @description  Configure a list of shortcuts for Vim-mode + :commands for toggling panes on Overleaf
// @namespace    http://tampermonkey.net/
// @version      0.2
// @match        https://www.overleaf.com/project/*
// @grant        none
// Source 1: https://groups.google.com/d/msg/ace-discuss/gwXMzUM17I4/9B_acHBSCQAJ
// Source 2: https://www.overleaf.com/learn/how-to/How_can_I_define_custom_Vim_macros_in_a_vimrc_file_on_Overleaf%3F
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    // poll until editor is loaded
    const retry = setInterval(() => {
        if (window._debug_editors === undefined) return
        clearInterval(retry)
        // get current editor instance
        // get current editor instance
        var editor = window._debug_editors[window._debug_editors.length -1]
        // vim keyboard plugin
        var vimKeyboard = window.ace.require("ace/keyboard/vim")
        ////////////////////////////////////////////////////////////
        // j k within long lines
        vimKeyboard.Vim.map("j", "gj", "normal")
        vimKeyboard.Vim.map("k", "gk", "normal")
        // add custom keybindings - insert mode applies on insert
        vimKeyboard.Vim.map("jj", "<Esc>", "insert")
        // Equilivantly, from https://groups.google.com/d/msg/ace-discuss/gwXMzUM17I4/9B_acHBSCQAJ
        // window.ace.require("ace/keyboard/vim").Vim.map('jj', '<Esc>', 'insert')
        vimKeyboard.Vim.map("jk", "<Esc>", "insert")
        ////////////////////////////////////////////////////////////
        // Remapping one key to another is doable, in Normal mode
        // `nmap h j` can be defined as the following:
        // Though, why should this mapping be here anyways? It is just meant for demo purpose.
        // vimKeyboard.Vim.map("h", "j", "normal")
        // Define local commands ==> matching elements along with a identifier that matches.
        // Maintenance note: if one hotkey/cmd does not work, check here for the matching HTML element.
        editor.commands.addCommands(
        [
        { // Note, this is not working as the element will change to "Split screen"
          // At least, we need an "or-condition" for the querySelector.
            name: "FullScreen",
            exec: function() {
              document.querySelector('a[tooltip*="Full screen"]').click()
            }
        }, 
        {
            name: "ToggleLog",
            exec: function() {
              document.querySelector('a[tooltip*="Logs and output files"]').click()
            }
        }, 
        {
            name: "jumpToPdf",
            exec: function() {
                document.querySelector(".synctex-control-goto-pdf").click()
            }
        }, 
          {
            name: "VimtexTocToggle",
            exec: function() {
                document.querySelector('a[tooltip*="the file-tree"]').click()
            }
        }, {
            name: "CloseComment",
            exec: function() {
                document.querySelector('a[class*="review-panel-toggler"]').click()
            }
        }, {
            name: "TogglePDF",
            exec: function() {
                document.querySelector('a[tooltip*="the PDF"]').click()
            }
        }])
        // add keybindings for jump to pdf
        vimKeyboard.Vim.mapCommand("\\v", "action", "aceCommand",
            { name: "VimtexTocToggle" }, { context: "normal" });
        vimKeyboard.Vim.mapCommand("\\lv", "action", "aceCommand",
            { name: "jumpToPdf" }, { context: "normal" });
        vimKeyboard.Vim.mapCommand("\\o", "action", "aceCommand",
            { name: "TogglePDF" }, { context: "normal" });



        // bind to ;lv
        vimKeyboard.Vim.unmap(";")
        vimKeyboard.Vim.unmap(",")
        vimKeyboard.Vim.map(";lv", "\\lv", "normal")
        vimKeyboard.Vim.map(",v", "\\v", "normal")
        // Use ,o to activate two hotkeys: hide file-menu and hide PDF preview
        vimKeyboard.Vim.map(",o", "\\v\\o", "normal")
        //vimKeyboard.Vim.mapCommand(",o", "action", "aceCommand",
        //    { name: "FullScreen" }, { context: "normal" });


        //vimKeyboard.Vim.defineEx("full", "", ()=>editor.commands.exec("FullScreen"))
        vimKeyboard.Vim.defineEx("log", "", ()=>editor.commands.exec("ToggleLog"))
        vimKeyboard.Vim.defineEx("ShowPDF", "", ()=>editor.commands.exec("TogglePDF"))
        vimKeyboard.Vim.defineEx("ClosePDF", "", ()=>editor.commands.exec("TogglePDF"))
        vimKeyboard.Vim.defineEx("OpenPDF", "", ()=>editor.commands.exec("TogglePDF"))
        vimKeyboard.Vim.defineEx("PDF", "", ()=>editor.commands.exec("TogglePDF"))
        vimKeyboard.Vim.defineEx("pdf", "", ()=>editor.commands.exec("TogglePDF"))
        // Close comment: CC, cc, CloseComment
        vimKeyboard.Vim.defineEx("CloseComment", "", ()=>editor.commands.exec("CloseComment"))
        vimKeyboard.Vim.defineEx("CC", "", ()=>editor.commands.exec("CloseComment"))
        vimKeyboard.Vim.defineEx("cc", "", ()=>editor.commands.exec("CloseComment"))
        // set the modified keyboard handler for editor
        editor.setKeyboardHandler(vimKeyboard.handler)
        console.log("Custom key bindings applied")
    }, 100)
})();