From fa15060098c8dba5d847db3c1dce932efa5a7cd6 Mon Sep 17 00:00:00 2001
From: Jim Shepich III <epicshepich@gmail.com>
Date: Tue, 30 Nov 2021 04:01:24 -0500
Subject: [PATCH] Added JSON extraction script for E&E bgm page

---
 scripts/json_scraper.js | 63 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 scripts/json_scraper.js

diff --git a/scripts/json_scraper.js b/scripts/json_scraper.js
new file mode 100644
index 0000000..8e3363c
--- /dev/null
+++ b/scripts/json_scraper.js
@@ -0,0 +1,63 @@
+function extract_data(){
+    var data = document.getElementsByTagName("tr");
+    var master = {};
+    var header = null;
+    for(row of data){
+        if(row.className == "row0"){
+            continue;
+            //Skip table headers
+        } else if (row.className == "row1"){
+            header = row.parentElement.parentElement.parentElement.parentElement.previousElementSibling.innerText;
+            //If we're at a new table, then we have to go up the DOM tree until we
+            //find that section's header.
+            master[header] = [];
+            //And create a new list for that header in the master object.
+        }
+
+        var row_object = {};
+        row_object["link"] = row.children[0].children[0].href;
+        //The link can be found in the anchor element in the first cell of the
+        //row.
+        var text = row.children[0].children[0].innerText;
+        //Get the text of the link.
+        row_object["song"] = text.substring(0,text.indexOf("(")-1);
+        //The name of the song is the start of the text until the space before
+        //the parenthesis. I've made sure to use hyphens in place of parentheses in
+        //song titles.
+        row_object["source"] = text.substring(text.indexOf("(")+1, text.indexOf(")"));
+        //The work that the song is from is indicated between the parentheses.
+
+        row_object["vibes"] = row.children[1].innerText.split(", ")
+        //The vibes are in the second column, delimited by a comma-space.
+
+
+        master[header].push(row_object);
+
+    }
+
+    return master;
+}
+
+
+
+
+function download(filename, text) {
+    //Borrowed shamelessly from:
+    //https://ourcodeworld.com/articles/read/189/how-to-create-a-file-and-generate-a-download-with-javascript-in-the-browser-without-a-server
+    var element = document.createElement('a');
+    element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
+    element.setAttribute('download', filename);
+
+    element.style.display = 'none';
+    document.body.appendChild(element);
+
+    element.click();
+
+    document.body.removeChild(element);
+}
+
+var button = document.getElementById("download-JSON");
+button.addEventListener("click",function(){
+    var json_data = JSON.stringify(extract_data(),null,2);
+    download("epics_bgm.json",json_data);
+});