feat. improved build script

Author: RohitKushvaha01

scripts/build.sh

@@ -5,14 +5,44 @@ set -e #exit on error
 appFreePaid="$1"
 mode="$2"
 
+
+function success(){
+    echo -e "\e[32;1m[+] \e[37m$1\e[0m"
+}
+
 function info(){
     echo -e "\e[34;1m[*] \e[37m$1\e[0m"
 }
 
-function success(){
-    echo -e "\e[32;1m[+] \e[37m$1\e[0m"
+function warn(){
+    echo -e "\e[33;1m[~] \e[37m$1\e[0m"
 }
 
+function error(){
+    echo -e "\e[31;1m[!] \e[37m$1\e[0m"
+}
+
+if [ -z "$JAVA_HOME" ]; then
+    warn "JAVA_HOME is not set. Please set it to your Java installation path."
+else
+    info "JAVA_HOME is set to $JAVA_HOME"
+fi
+
+if [ -z "$ANDROID_HOME" ]; then
+    warn "ANDROID_HOME is not set. Please set it to your Android SDK installation path."
+else
+    info "ANDROID_HOME is set to $ANDROID_HOME"
+fi
+
+
+java_version=$(java -version 2>&1 | awk -F[\".] '/version/ {print $2}')
+if [ "$java_version" -ge 21 ]; then
+    :
+else
+    error "Java version 21 or higher is required. Please install openjdk 21 or higher."
+    exit 1
+fi
+
 
 if [ -z "$mode" ]
 then
@@ -62,5 +92,4 @@ else
   sh "$PROJECT_ROOT"/scripts/gradlew-link assembleDebug
 fi
 
-success "Build finished"
-success "Output path: $PROJECT_ROOT/android/app/build/outputs/apk/"
+success "Build finished"