// ==UserScript==
// @name         Canvas Grade Calculator
// @namespace    0612
// @version      1.0
// @description  Calculates the Letter Grade for Canvas
// @author       SaturnKai
// @include      *.instructure.*
// @match        ...instructure.com...
// @downloadURL none
// ==/UserScript==

window.onload = function (){
    let value = document.getElementsByClassName("student_assignment final_grade")[1].innerText.split(' ')[1].split('%')[0];
    if (value >= 90){
        document.getElementsByClassName("student_assignment final_grade")[1].innerText = document.getElementsByClassName("student_assignment final_grade")[1].innerText + ' (A)';
    }
    if (value >= 80 && value <= 89){
        document.getElementsByClassName("student_assignment final_grade")[1].innerText = document.getElementsByClassName("student_assignment final_grade")[1].innerText + ' (B)';
    }
    if (value >= 70 && value <= 79){
        document.getElementsByClassName("student_assignment final_grade")[1].innerText = document.getElementsByClassName("student_assignment final_grade")[1].innerText + ' (C)';
    }
    if (value >= 60 && value <= 69){
        document.getElementsByClassName("student_assignment final_grade")[1].innerText = document.getElementsByClassName("student_assignment final_grade")[1].innerText + ' (D)';
    }
    if (value <= 59){
        document.getElementsByClassName("student_assignment final_grade")[1].innerText = document.getElementsByClassName("student_assignment final_grade")[1].innerText + ' (F)';
    }
}