Merge pull request #126 from gary-kim/first-semester-gpa

Shows first semester GPA during second semester

Author: gary-kim

.gitignore

@@ -4,6 +4,7 @@ firefox_build.zip
 artifacts/
 dist/
 src/web_accessible_resources/libraries.txt
+.DS_Store
 
 # Node
 node_modules/

src/js/saspowerschoolff.js

@@ -76,6 +76,7 @@ function main_page () {
     const student_name = document.querySelector('#userName').querySelector('span').innerText;
     let second_semester = false;
     const courses = [];
+    const courses_first_semester = [];
     const $grade_rows = $('#quickLookup table.grid').find('tr');
     let s1col = 0;
     let s2col = 0;
@@ -125,7 +126,32 @@ function main_page () {
         }
     }
     $("table[border='0'][cellpadding='3'][cellspacing='1'][width='100%']").prepend(`<tr><td align="center">Current Semester GPA (${second_semester ? 'S2' : 'S1'}): ${calculate_gpa(courses)}</td></tr>`);
+    if (second_semester) {
+        fetch("https://powerschool.sas.edu.sg/guardian/termgrades.html")
+            .then((response) => {
+                return response.text();
+            })
+            .then((data) => {
+                const el = document.createElement("html");
+                let element_list = [];
+                el.innerHTML = data;
+                element_list = el.getElementsByClassName("box-round")[0].getElementsByTagName("table")[0];
+                element_list = element_list.getElementsByTagName("tbody")[0].getElementsByTagName("tr");
+                if (element_list.length > 2) {
+                    for (let i = 2; i < element_list.length; i++) {
+                        const $prev_course = element_list[i];
+                        courses_first_semester.push({
+                            name: $prev_course.getElementsByTagName("td")[0].textContent.trim(),
+                            grade: $prev_course.getElementsByTagName("td")[1].textContent.trim(),
+                            link: $prev_course.getElementsByTagName("td")[2].getElementsByTagName("a")[0].href,
+                            fp: -1,
 
+                        });
+                    }
+                    $("table[border='0'][cellpadding='3'][cellspacing='1'][width='100%']").prepend(`<tr><td align="center">Last Semester GPA (S1): ${calculate_gpa(courses_first_semester)}</td></tr>`);
+                }
+            });
+    }
     // Hypo Grade Calculator
     const HypoGradesDiv = document.createElement('div');
     HypoGradesDiv.classList.add("hypo-grade-div-fixed");
@@ -166,6 +192,7 @@ function fill_percent ($fill_location, url_link, percents, pos_in_arr) {
     if (!percent_main_page) {
         return;
     }
+
     $.ajax({
         url: url_link,
     }).done(function (data) {