String GITHUB_REPOSITORY = 'lambda-backfill-spotify-internal-id'
String ECR_ACCOUNT_ID = '086679231553'
List<String> AWS_REGIONS = ['us-east-1']
List<String> CHANGED_DIRS_TO_BUILD = ['backfill_spotify_internal_id']
List<String> CHANGED_DIRS_TO_TEST = ['backfill_spotify_internal_id']
String SLACK_NOTIFICATIONS_CHANNEL = '#distro-build-alerts'
String QA_ACCOUNT_ID = '437795906767'
String QA_DEPLOYMENT_ROLE = 'prod-jenkins-aws-pipeline-agent'
String PROD_ACCOUNT_ID = '437795906767'
String PROD_DEPLOYMENT_ROLE = 'prod-jenkins-aws-pipeline-agent'

def modifiedFunctionsToBuild = []
def modifiedFunctionsToTest = []

pipeline {
    agent any

    options {
        ansiColor('xterm')
        disableConcurrentBuilds()
        timestamps()
    }

    parameters {
        booleanParam(name: 'DEPLOY_TO_PROD', defaultValue: true, description: 'Whether or not to deploy to prod.')
        string(name: 'SHARED_LIBRARIES_VERSION', defaultValue: 'master', description: 'The version of the Jenkins shared libraries to use. Can be a branch, tag, Git revision or PR ref (e.g. pull/PR_NUMBER/merge).')
    }

    triggers {
        issueCommentTrigger('.*retest this please.*')
    }

    stages {
        stage('Checkout') {
            steps {
                script {
                    cleanWs()
                    def scmVars = checkout scm
                    // Set SCM vars as environment variables to replicate default checkout functionality
                    scmVars.each { k, v ->
                        env."${k}" = v
                    }
                }
            }
        }

        stage('Load Shared Libraries') {
            steps {
                library "jenkins-global-libraries@${params.SHARED_LIBRARIES_VERSION}"
            }
        }

        stage('Find Modified Functions') {
            steps {
                script {
                    def scriptDirectories = findFiles(glob: '**/Dockerfile')
                    modifiedFunctionList = getModifiedFunctions branchName: env.BRANCH_NAME,
                                                   previousSuccessfulCommit: env.GIT_PREVIOUS_SUCCESSFUL_COMMIT,
                                                   lambdaDirectories: scriptDirectories
                    modifiedFunctionsToTest = modifiedFunctionList.findAll({ x -> x in CHANGED_DIRS_TO_TEST })
                    modifiedFunctionsToBuild = modifiedFunctionList.findAll({ x -> x in CHANGED_DIRS_TO_BUILD })
                }
            }
        }

        stage('Validate Software Catalog Definition') {
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Validating Software Catalog Definition for ${functionName}"
                                datadogSoftwareCatalogValidate(servicePath: "lambda/${functionName}")
                            }
                        ]
                    })
                }
            }
        }

        stage('Compliance Checks') {
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Running Compliance Checks for ${functionName}"
                                dir("lambda/${functionName}") {
                                    complianceChecks()
                                }
                            }
                        ]
                    })
                }
            }
        }

        stage('Unit Tests and Style Checks') {
            steps {
                script {
                    parallel(modifiedFunctionsToTest.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Running Unit Tests and Style Checks for ${functionName}"
                                dir("lambda/${functionName}") {
                                    sh "docker compose up --exit-code-from lint-and-test --abort-on-container-exit --build lint-and-test"
                                }
                            }
                        ]
                    })
                }
            }
        }

        stage('Static Application Security Tests') {
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Running Static App Security Tests for ${functionName}"
                                sastTests(projectDir: "lambda/${functionName}")
                            }
                        ]
                    })
                }
            }
        }

        stage('Sonar Scan and Analysis') {
            when {
                branch 'master'
            }
            steps {
                script {
                    echo "Running Sonar scan for ${GITHUB_REPOSITORY}"
                    sonarScan project: GITHUB_REPOSITORY, language: 'py'
                }
            }
        }

        stage('Create a Release') {
            when {
                anyOf {
                    branch 'master'
                    expression { env.GITHUB_COMMENT =~ 'build docker' }
                }
            }
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Building for ${functionName}"
                                dockerToEcr awsRegions: AWS_REGIONS,
                                    ecrAccountId: ECR_ACCOUNT_ID,
                                    imageName: "lambda-${functionName.replaceAll('_', '-')}",
                                    imageTag: env.GIT_COMMIT,
                                    dockerBuildContext: "lambda/${functionName}",
                                    dockerBuildFile: "lambda/${functionName}/Dockerfile"
                            }
                        ]
                    })
                }
            }
        }

        stage('Deploy to QA') {
            when {
                branch 'master'
            }
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Deploying to QA for ${functionName}"
                                dir("lambda/${functionName}") {
                                    lambdaDeploy environment: 'qa',
                                        awsRegions: AWS_REGIONS,
                                        imageTag: env.GIT_COMMIT,
                                        imageName: "lambda-${functionName.replaceAll('_', '-')}",
                                        ecrRegistryAccountId: ECR_ACCOUNT_ID,
                                        awsDeploymentTargetAccountId: QA_ACCOUNT_ID,
                                        awsDeploymentRoleName: QA_DEPLOYMENT_ROLE
                                }
                            }
                        ]
                    })
                }
            }
        }

        stage('Scan Docker Images') {
            when {
                anyOf {
                    branch 'master'
                    expression { env.GITHUB_COMMENT =~ 'build docker' }
                }
            }
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Scanning Docker Images for ${functionName}"
                                dir("lambda/${functionName}") {
                                    dockerScan awsRegion: AWS_REGIONS[0],
                                        ecrAccountId: ECR_ACCOUNT_ID,
                                        imageName: "lambda-${functionName.replaceAll('_', '-')}",
                                        imageTag: env.GIT_COMMIT,
                                        failBuild: false
                                }
                            }
                        ]
                    })
                }
            }
        }

        stage('Deploy to PROD') {
            when {
                allOf {
                    branch 'master'
                    expression { params.DEPLOY_TO_PROD }
                }
            }
            steps {
                script {
                    parallel(modifiedFunctionsToBuild.collectEntries { functionName ->
                        return [
                            (functionName): {
                                echo "Deploying to PROD for ${functionName}"
                                dir("lambda/${functionName}") {
                                    lambdaDeploy environment: 'prod',
                                        awsRegions: AWS_REGIONS,
                                        imageTag: env.GIT_COMMIT,
                                        imageName: "lambda-${functionName.replaceAll('_', '-')}",
                                        ecrRegistryAccountId: ECR_ACCOUNT_ID,
                                        awsDeploymentTargetAccountId: PROD_ACCOUNT_ID,
                                        awsDeploymentRoleName: PROD_DEPLOYMENT_ROLE
                                }
                                datadogSoftwareCatalogPublish(servicePath: "lambda/${functionName}")
                            }
                        ]
                    })
                }
            }
        }
    }

    post {
        regression {
            script {
                if (env.BRANCH_NAME == 'master') {
                    slackNotify channel: SLACK_NOTIFICATIONS_CHANNEL
                }
            }
        }
        fixed {
            script {
                if (env.BRANCH_NAME == 'master') {
                    slackNotify channel: SLACK_NOTIFICATIONS_CHANNEL
                }
            }
        }
        cleanup {
            cleanWs()
        }
    }
}