pipeline {
    agent { label 'appdev' }

    environment {
        DOTNET_CLI_HOME    = "C:\\Windows\\Temp"
        PUBLISH_DIR        = "C:\\jenkins\\publish\\powdercoating"
        DEPLOY_DIR         = "C:\\inetpub\\wwwroot"
        APP_POOL           = "PCC"
        WEB_PROJECT        = "src\\PowderCoating.Web\\PowderCoating.Web.csproj"
        INFRA_PROJECT      = "src\\PowderCoating.Infrastructure\\PowderCoating.Infrastructure.csproj"
        CONNECTION_STRING  = "Server=.\\SQLEXPRESS;Database=PowderCoatingDb;Trusted_Connection=true;MultipleActiveResultSets=true;TrustServerCertificate=true"
    }

    stages {

        stage('Checkout') {
            steps {
                checkout scm
            }
        }

        stage('Restore') {
            steps {
                bat 'dotnet restore'
            }
        }

        stage('Build') {
            steps {
                bat 'dotnet build --no-restore -c Release'
            }
        }

        stage('Test') {
            steps {
                bat 'dotnet test --no-build -c Release --logger "trx;LogFileName=results.trx" --results-directory TestResults'
            }
            post {
                always {
                    junit testResults: 'TestResults/*.trx', allowEmptyResults: true
                }
            }
        }

        stage('Publish') {
            steps {
                bat "dotnet publish %WEB_PROJECT% -c Release --no-build -o \"%PUBLISH_DIR%\""
            }
        }

        stage('Migrate Database') {
            steps {
                bat """
                    dotnet tool restore
                    dotnet ef database update --project %INFRA_PROJECT% --startup-project %WEB_PROJECT% --context ApplicationDbContext --connection "%CONNECTION_STRING%"
                """
            }
        }

        stage('Deploy') {
            steps {
                // Stop app pool, copy files, restart app pool
                bat """
                    C:\\Windows\\System32\\inetsrv\\appcmd stop apppool /apppool.name:%APP_POOL%
                    xcopy /E /Y /I "%PUBLISH_DIR%\\*" "%DEPLOY_DIR%\\"
                """
                // Patch web.config to set Development environment — must survive every deploy
                powershell '''
                    $path = "C:\\inetpub\\wwwroot\\web.config"
                    $xml = [xml](Get-Content $path)

                    # Use XPath so the structure (with or without <location> wrapper) doesn't matter
                    $aspNetCore = $xml.SelectSingleNode("//aspNetCore")
                    if ($null -eq $aspNetCore) {
                        Write-Error "Could not find aspNetCore element in web.config"
                        exit 1
                    }

                    # Ensure environmentVariables element exists
                    $envVarsNode = $aspNetCore.SelectSingleNode("environmentVariables")
                    if ($null -eq $envVarsNode) {
                        $envVarsNode = $xml.CreateElement("environmentVariables")
                        $aspNetCore.AppendChild($envVarsNode) | Out-Null
                    }

                    # Remove existing ASPNETCORE_ENVIRONMENT entry if present
                    $existing = $envVarsNode.SelectSingleNode("environmentVariable[@name='ASPNETCORE_ENVIRONMENT']")
                    if ($existing) { $envVarsNode.RemoveChild($existing) | Out-Null }

                    # Add fresh entry
                    $envVar = $xml.CreateElement("environmentVariable")
                    $envVar.SetAttribute("name", "ASPNETCORE_ENVIRONMENT")
                    $envVar.SetAttribute("value", "Development")
                    $envVarsNode.AppendChild($envVar) | Out-Null

                    $xml.Save($path)
                    Write-Host "web.config patched: ASPNETCORE_ENVIRONMENT=Development"
                '''
                bat 'C:\\Windows\\System32\\inetsrv\\appcmd start apppool /apppool.name:%APP_POOL%'
            }
            post {
                failure {
                    // Make sure app pool is restarted even if copy fails
                    bat 'C:\\Windows\\System32\\inetsrv\\appcmd start apppool /apppool.name:%APP_POOL%'
                }
            }
        }
    }

    post {
        success {
            echo 'Dev deployment completed successfully.'
        }
        failure {
            echo 'Pipeline failed — check logs above.'
        }
    }
}