From 25efa6c6725a0e99db40616c651f22659ea80491 Mon Sep 17 00:00:00 2001
From: nobkd <44443899+nobkd@users.noreply.github.com>
Date: Wed, 29 Mar 2023 20:46:01 +0200
Subject: [PATCH] feat: add test file to decode pb

---
 src/map/parsepb.js | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/map/parsepb.js

diff --git a/src/map/parsepb.js b/src/map/parsepb.js
new file mode 100644
index 0000000..e3decb6
--- /dev/null
+++ b/src/map/parsepb.js
@@ -0,0 +1,45 @@
+function convertType(item) {
+    item = item.replace(/^\d+/, '');
+    const type = item.charAt();
+    item = item.substring(1);
+
+    let temp = undefined;
+
+    switch (type) {
+        case 'f': case 'd': // float or map pos
+            temp = parseFloat(item);
+            break;
+        case 'i': case 'm': // int or new
+            temp = parseInt(item);
+            break;
+        case 'e': case 's': case 'z': // enum (decode differently later) or string or timestamp
+            temp = item;
+            break;
+        default:
+            temp = item;
+    };
+
+    return [temp, type === 'm'];
+}
+
+function fromPB(items, idx = 0, out = []) {
+
+    while (idx < items.length) {
+        let [val, isNew] = convertType(items[idx]);
+
+        if (!isNew) {
+            out.push(val);
+        } else {
+            let range = items.slice(idx + 1, idx + val + 1);
+            let newOut = fromPB(range);
+            out.push(newOut);
+            idx += val;
+        }
+        idx++;
+    }
+
+    return out;
+}
+
+pb = '!1m18!1m12!1m3!1d2430.8881547480214!2d10.197357316209178!3d52.463052979803535!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x47b01d1b9af65f4b:0x225da8e03e242ad1!2sBaarsweg 9, 31311 Uetze!5e0!3m2!1sde!2sde!4v1557583694739!5m2!1sde!2sde';
+console.log(fromPB(pb.split('!').slice(1)));