pipeline {
    agent { label 'Win10-BuildMachine' }

    tools {
        git 'Default'
    }

    parameters {
        string(name: 'buildPath', defaultValue: 'C:/Jenkins/workspace/Azaion/suite', description: 'Path to folder containing zip builds.')
    }

    environment {
        GOOGLE_DRIVE_FOLDER = 'AzaionSuiteBuilds'
        RCLONE_CONFIG     = 'C:/Program Files/rclone/rclone.conf'
        LATEST_ZIP_FILENAME = ''  // Initial value
    }

    stages {
        stage('Initialize Workspace') {
            steps {
                echo 'Initializing workspace on Windows agent...'
                powershell '''
                    $uploadDir = "temp_upload"
                    if (-Not (Test-Path $uploadDir)) {
                        New-Item -ItemType Directory -Path $uploadDir | Out-Null
                    }
                '''
            }
        }

        stage('Find Latest Zip') {
            steps {
                script {
                    echo "Using build path: ${params.buildPath}"
                    def latestZip = ''
                    dir("${params.buildPath}") {
                        def output = powershell(returnStdout: true, script: '''
                            $pattern = "AzaionSuite*.zip"
                            $zipFiles = Get-ChildItem -Filter $pattern | Sort-Object Name -Descending
                            if ($zipFiles.Count -gt 0) {
                                Write-Output "::SET-ENV::LATEST_ZIP_FILENAME=$($zipFiles[0].Name)"
                            } else {
                                Write-Output "::SET-ENV::LATEST_ZIP_FILENAME="
                            }
                        ''').trim()

                        echo "PowerShell output: ${output}"

                        def match = (output =~ /::SET-ENV::LATEST_ZIP_FILENAME=(.+)/)
                        if (match) {
                            latestZip = match[0][1]
                            echo "✅ Latest zip file selected: ${latestZip}"
                        } else {
                            echo "⚠️ No zip found."
                            latestZip = 'none'  // Handle case where no file is found
                        }
                    }
                    // Directly assign the value to the env variable for use in other stages
                    env.LATEST_ZIP_FILENAME = latestZip
                }
            }
        }

        stage('Upload If Not Exists & Always Remove Local') {
            when {
                expression {
                    return env.LATEST_ZIP_FILENAME != 'none' && env.LATEST_ZIP_FILENAME != ''
                }
            }
            steps {
                echo "Uploading ${env.LATEST_ZIP_FILENAME} if needed..."
                powershell """
                    \$fileName     = "${env.LATEST_ZIP_FILENAME}"
                    \$folder       = "${GOOGLE_DRIVE_FOLDER}"
                    \$rcloneRemote = "AzaionGoogleDrive:\$folder"
                    \$localPath    = "${params.buildPath}/\$fileName"

                    Write-Output "Existing on drive:"
                    \$existing = rclone lsf --files-only \$rcloneRemote
                    Write-Output \$existing

                    if (\$existing -match "^\$fileName\$") {
                        Write-Output "Already exists; skipping upload."
                    } else {
                        Write-Output "Uploading..."
                        rclone copy \$localPath \$rcloneRemote --drive-chunk-size 64M --progress
                    }

                    if (Test-Path \$localPath) {
                        Remove-Item -Force \$localPath
                        Write-Output "Local deleted."
                    }
                """
            }
        }

        stage('Cleanup Older Files on Google Drive') {
            when {
                expression {
                    return env.LATEST_ZIP_FILENAME != 'none' && env.LATEST_ZIP_FILENAME != ''
                }
            }
            steps {
                echo "Cleaning up older files..."
                powershell """
                    \$folder = "${GOOGLE_DRIVE_FOLDER}"
                    \$files = rclone lsf --files-only AzaionGoogleDrive:\$folder | Where-Object { \$_ -match '^AzaionSuite.*\\.zip\$' }

                    # Build an array of objects with parsed DateTime
                    \$meta = foreach (\$f in \$files) {
                        if (\$f -match 'AzaionSuite\\.Iterative\\.(\\d{8})-(\\d{6})\\.zip') {
                            \$dt = [datetime]::ParseExact(\$matches[1] + \$matches[2], 'yyyyMMddHHmmss', \$null)
                        } elseif (\$f -match 'AzaionSuite1\\.\\d+\\.\\d+\\.\\d+-(\\d{8})-(\\d{6})\\.zip') {
                            \$dt = [datetime]::ParseExact(\$matches[1] + \$matches[2], 'yyyyMMddHHmmss', \$null)
                        } else {
                            # if it doesn't match expected formats, skip
                            continue
                        }
                        [PSCustomObject]@{ Name = \$f; Date = \$dt }
                    }

                    # Sort by Date descending, skip the first 3 (newest), delete the rest
                    \$toDelete = \$meta | Sort-Object Date -Descending | Select-Object -Skip 3
                    if (\$toDelete) {
                        Write-Output "Deleting:\"
                        \$toDelete | ForEach-Object { Write-Output \$_ .Name; rclone deletefile AzaionGoogleDrive:\$folder/\$($_.Name) }
                    } else {
                        Write-Output "Nothing to delete."
                    }
                """
            }
        }
    }

    post {
        always {
            echo 'Cleaning up temp files...'
            powershell '''
                if (Test-Path temp_upload) { Remove-Item -Recurse -Force temp_upload }
            '''
        }
        failure {
            echo 'Pipeline failed; check the logs above.'
        }
    }
}