refactor: reorganize Jenkinsfile stages and improve environment variable handling

Jenkinsfile

@@ -1,113 +1,138 @@
 pipeline {
 
-    agent none
+```
+agent none
 
-    options {
+options {
-        buildDiscarder(logRotator(numToKeepStr: '10'))
+    buildDiscarder(logRotator(numToKeepStr: '10'))
-    }
+    disableConcurrentBuilds()
+}
 
-    environment {
+stages {
-        DEPLOY_PATH = getDeployPath()
-        ENV_FILE_ID = getEnvFileId()
-        TARGET_URL = getHealthUrl()
-    }
 
-    stages {
+    stage('Build') {
+        agent { label getAgentLabel() }
 
-        stage('Checkout') {
+        stages {
-            agent { label getAgentLabel() }
+
-            steps {
+            stage('Cleanup Workspace') {
-                checkout scm
+                steps {
+                    cleanWs()
+                }
             }
-        }
 
-        stage('Inject Environment File') {
+            stage('Checkout') {
-            agent { label getAgentLabel() }
+                steps {
-            steps {
+                    checkout scm
-                configFileProvider(
+                }
-                    [configFile(
+            }
-                        fileId: ENV_FILE_ID,
+
-                        targetLocation: 'src/environments/environment.ts',
+            stage('Inject Environment File') {
-                        replaceTokens: true
+                steps {
-                    )]
+                    configFileProvider(
-                ) {
+                        [configFile(
-                    echo "Environment file injected for ${env.BRANCH_NAME}"
+                            fileId: getEnvFileId(),
+                            targetLocation: 'src/environments/environment.ts',
+                            replaceTokens: true
+                        )]
+                    ) {
+                        echo "Injected environment for ${env.BRANCH_NAME}"
+                    }
+                }
+            }
+
+            stage('Install & Build') {
+                steps {
+                    sh '''
+                    npm ci
+                    ng build --configuration production --base-href /admin/
+                    '''
                 }
             }
         }
+    }
 
-        stage('Build Angular') {
+    // 🚨 Production Approval Gate
-            agent { label getAgentLabel() }
+    stage('Production Approval') {
-            steps {
+        when {
-                sh '''
+            branch 'prod'
-                npm install
-                ng build --configuration production --base-href /admin/
-                '''
-            }
         }
-
+        steps {
-        stage('Deploy') {
+            input message: "Approve deployment to PRODUCTION?", ok: "Deploy"
-            agent { label getAgentLabel() }
-            steps {
-                sh '''
-                rm -rf $DEPLOY_PATH/*
-                cp -r dist/portfolio-admin/browser/* $DEPLOY_PATH/
-                sudo /usr/bin/systemctl reload nginx
-                '''
-            }
-        }
-
-        stage('Health Check') {
-            agent { label getAgentLabel() }
-            steps {
-                sh """
-                sleep 2
-                curl -f ${TARGET_URL}
-                """
-            }
         }
     }
 
-    post {
+    stage('Deploy & Verify') {
-        failure {
+        agent { label getAgentLabel() }
-            echo "Deployment failed!"
+
-        }
+        stages {
-        success {
+
-            echo "Deployment successful!"
+            stage('Deploy') {
+                steps {
+                    sh """
+                    rsync -av --delete dist/portfolio-admin/browser/ ${getDeployPath()}/
+                    sudo /usr/bin/systemctl reload nginx
+                    """
+                }
+            }
+
+            stage('Health Check') {
+                steps {
+                    sh """
+                    sleep 3
+                    curl -f ${getHealthUrl()}
+                    """
+                }
+            }
+
         }
     }
 }
 
+post {
+    success {
+        echo "✅ Deployment successful for ${env.BRANCH_NAME}"
+    }
+    failure {
+        echo "❌ Deployment failed for ${env.BRANCH_NAME}"
+    }
+}
+```
+
+}
+
+//
 // -------- Helper Methods --------
+//
 
 def getAgentLabel() {
-    if (env.BRANCH_NAME == 'prod') {
+if (env.BRANCH_NAME == 'prod') {
-        return 'oracle-prod'
+return 'oracle-prod'
-    } else {
+} else {
-        return 'built-in'   // for develop
+return 'built-in'
-    }
+}
 }
 
 def getEnvFileId() {
-    if (env.BRANCH_NAME == 'prod') {
+if (env.BRANCH_NAME == 'prod') {
-        return 'admin-prod-properties'
+return 'admin-prod-properties'
-    } else {
+} else {
-        return 'admin-uat-properties'
+return 'admin-uat-properties'
-    }
+}
 }
 
 def getDeployPath() {
-    if (env.BRANCH_NAME == 'prod') {
+if (env.BRANCH_NAME == 'prod') {
-        return "/var/www/bangararaju.kottedi.in/admin"
+return "/var/www/bangararaju.kottedi.in/admin"
-    } else {
+} else {
-        return "/var/www/bangararaju.kottedi.in/admin"
+return "/var/www/bangararaju.kottedi.in/admin"
-    }
+}
 }
 
 def getHealthUrl() {
-    if (env.BRANCH_NAME == 'prod') {
+if (env.BRANCH_NAME == 'prod') {
-        return "https://bangararaju.kottedi.in/admin"
+return "https://bangararaju.kottedi.in/admin"
-    } else {
+} else {
-        return "https://bangararaju-uat.kottedi.in/admin"
+return "https://bangararaju-uat.kottedi.in/admin"
-    }
+}
 }