Add injecting to an .ipa in inject.sh

Now running `inject.sh` adds the original files into
`iloveusomuch.ipa`, and running `inject.sh project` puts them into
the project folder.

Author: michaelwright235

inject.sh

@@ -1,8 +1,18 @@
 #!/bin/sh
 
-OUT_DIR="./iloveusomuch/originalAssets"
+###
+### Injects assets from the original app into an .ipa or the project itself
+###
 
-IPA_NAME="original.ipa"
+ORIGINAL_IPA_NAME="original.ipa"
+IPA_NAME="iloveusomuch.ipa"
+
+if [ "$1" == "project" ]; then
+    OUT_DIR="./iloveusomuch/originalAssets"
+else
+    OUT_DIR="./Payload/iloveusomuch.app"
+    mkdir -p $OUT_DIR
+fi
 
 zipPath="Payload/Cassius.app/"
 zipFiles=(
@@ -12,13 +22,13 @@ zipFiles=(
 "${zipPath}Videos.m4v"
 )
 
-if ! [ -f "./original.ipa" ]; then
-    echo "Please put the original .ipa file under the 'original.ipa' name first"
+if ! [ -f "./$ORIGINAL_IPA_NAME" ]; then
+    echo "Please put the original .ipa file under the '$ORIGINAL_IPA_NAME' name first"
     exit 1
 fi
 
 # Check if the required files are in place
-givenZipFileList=`unzip -Z1 $IPA_NAME`
+givenZipFileList=`unzip -Z1 $ORIGINAL_IPA_NAME`
 for file in ${zipFiles[@]}; do
     if ! echo "$givenZipFileList" | grep $file >> /dev/null; then
         echo "'$file' not found. Are you sure that you're using the correct .ipa file?"
@@ -32,7 +42,7 @@ for file in ${zipFiles[@]}; do
     zipFilesArg="${zipFilesArg} ${file}"
 done
 
-unzip -j $IPA_NAME ${zipFilesArg} -d $OUT_DIR
+unzip -j $ORIGINAL_IPA_NAME ${zipFilesArg} -d $OUT_DIR
 
 if ! [ $? = 0 ]; then
     echo "Failed to uncompress the archive"
@@ -43,3 +53,15 @@ mv $OUT_DIR/[email protected] $OUT_DIR/loader.png
 
 # Download the original app icon from web.archive.org
 curl -o $OUT_DIR/AppIcon.png "https://web.archive.org/web/20240111215624if_/https://is4-ssl.mzstatic.com/image/thumb/Purple/2b/df/56/mzi.rptjtlhi.png/738x0w.png"
+if ! [ $? = 0 ]; then
+    echo "Failed to download an app icon"
+    exit 1
+fi;
+
+if [ "$1" == "project" ]; then
+    exit 0;
+fi
+
+# Inject files into a compiled .ipa
+zip -ru $IPA_NAME Payload
+rm -R ./Payload