feat: configure Firebase and signing for multiple environments in mobile app

mobile-apps/client-app/android/app/build.gradle

@@ -35,11 +35,47 @@ android {
 
     flavorDimensions "release-type"
 
+    def keystorePropertiesFileNameDev = "key_dev.properties"
+    def keystorePropertiesDev = new Properties()
+    keystorePropertiesDev.load(new FileInputStream(rootProject.file(keystorePropertiesFileNameDev)))
+
+    def keystorePropertiesFileNameStaging = "key_staging.properties"
+    def keystorePropertiesStaging = new Properties()
+    keystorePropertiesStaging.load(new FileInputStream(rootProject.file(keystorePropertiesFileNameStaging)))
+
+    def keystorePropertiesFileNameProd = "key_prod.properties"
+    def keystorePropertiesProd = new Properties()
+    keystorePropertiesProd.load(new FileInputStream(rootProject.file(keystorePropertiesFileNameProd)))
+
+    signingConfigs {
+        configDev {
+            keyAlias keystorePropertiesDev['keyAlias']
+            keyPassword keystorePropertiesDev['keyPassword']
+            storeFile file('../key_dev.jks')
+            storePassword keystorePropertiesDev['storePassword']
+        }
+
+        configStaging {
+            keyAlias keystorePropertiesStaging['keyAlias']
+            keyPassword keystorePropertiesStaging['keyPassword']
+            storeFile file('../key_staging.jks')
+            storePassword keystorePropertiesStaging['storePassword']
+        }
+
+        configProd {
+            keyAlias keystorePropertiesProd['keyAlias']
+            keyPassword keystorePropertiesProd['keyPassword']
+            storeFile file('../key_staging.jks')
+            storePassword keystorePropertiesProd['storePassword']
+        }
+    }
+    
     productFlavors {
         dev {
             dimension "release-type"
             applicationIdSuffix ".dev"
             versionNameSuffix "-dev"
+            signingConfig signingConfigs.configDev
             manifestPlaceholders = [
                     appLabel: "Krow Business dev",
                     appIcon: "@mipmap/ic_launcher_dev"
@@ -50,6 +86,7 @@ android {
             dimension "release-type"
             applicationIdSuffix ".staging"
             versionNameSuffix "-staging"
+            signingConfig signingConfigs.configStaging
             manifestPlaceholders = [
                     appLabel: "Krow Business staging",
                     appIcon: "@mipmap/ic_launcher_dev"
@@ -58,27 +95,13 @@ android {
 
         prod {
             dimension "release-type"
+            signingConfig signingConfigs.configProd
             manifestPlaceholders = [
                     appLabel: "Krow Business",
                     appIcon: "@mipmap/ic_launcher"
             ]
         }
     }
-
-    signingConfigs {
-        release {
-            keyAlias = keystoreProperties['keyAliasClient']
-            keyPassword = keystoreProperties['keyPassword']
-            storeFile = keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
-            storePassword = keystoreProperties['storePassword']
-        }
-    }
-
-    buildTypes {
-        release {
-            signingConfig = signingConfigs.release
-        }
-    }
 }
 
 flutter {

mobile-apps/client-app/android/key_dev.properties

@@ -0,0 +1,4 @@
+storePassword=krowdev
+keyPassword=krowdev
+keyAlias=staff-dev
+storeFile=kast_android_dev.jks

mobile-apps/client-app/android/key_prod.properties

@@ -0,0 +1,4 @@
+storePassword=krowstaging
+keyPassword=krowstaging
+keyAlias=staff-staging
+storeFile=key_staging.jks

mobile-apps/client-app/android/key_staging.properties

@@ -0,0 +1,4 @@
+storePassword=krowstaging
+keyPassword=krowstaging
+keyAlias=staff-staging
+storeFile=key_staging.jks