/**
 * Generate cookiecutter cluster by individual products
 *
 * Expected parameters:
 *   COOKIECUTTER_TEMPLATE_CONTEXT      Context parameters for the template generation.
 *   CREDENTIALS_ID                     Credentials id for git
 *   TEST_MODEL                         Run syntax tests for model
 **/

import static groovy.json.JsonOutput.toJson
import static groovy.json.JsonOutput.prettyPrint
import org.apache.commons.net.util.SubnetUtils

common = new com.mirantis.mk.Common()
common2 = new com.mirantis.mcp.Common()
git = new com.mirantis.mk.Git()
python = new com.mirantis.mk.Python()
saltModelTesting = new com.mirantis.mk.SaltModelTesting()

slaveNode = env.getProperty('SLAVE_NODE') ?: 'virtual'
gerritCredentials = env.getProperty('CREDENTIALS_ID') ?: 'gerrit'
runTestModel = (env.getProperty('TEST_MODEL') ?: true).toBoolean()
distribRevision = 'proposed'
gitGuessedVersion = false

def GenerateModelToxDocker(Map params) {
    def ccRoot = params['ccRoot']
    def context = params['context']
    def outDir = params['outDir']
    def envOpts = params['envOpts']
    if (fileExists(new File(ccRoot, 'tox.ini').toString())) {
        def tempContextFile = new File(ccRoot, 'tempContext.yaml_' + UUID.randomUUID().toString()).toString()
        writeFile file: tempContextFile, text: context
        // Get Jenkins user UID and GID
        def jenkinsUID = sh(script: 'id -u', returnStdout: true).trim()
        def jenkinsGID = sh(script: 'id -g', returnStdout: true).trim()
        /// by default, process in image operates via root user
        /// Otherwise, gpg key for model and all files managed by jenkins user
        /// To make it compatible, install rrequirementfrom user, but generate model via jenkins
        def configRun = ['distribRevision': 'nightly',
                         'envOpts'        : envOpts + ["CONFIG_FILE=$tempContextFile",
                                                       "OUTPUT_DIR=${outDir}",
                                                       "jenkinsUID=${jenkinsUID}",
                                                       "jenkinsGID=${jenkinsGID}"
                         ],
                         'runCommands'    : [
                             '001_prepare_generate_auto_reqs': {
                                 sh('''
                                        groupadd -g ${jenkinsGID} jenkins
                                        useradd  -u ${jenkinsUID} -g ${jenkinsGID} -m jenkins
                                        # Install required packages
                                        apt-get install -y python3-dev python-tox
                                        ''')
                             },
                             '002_run_generate_auto'         : {
                                 print('[Cookiecutter build] Result:\n' +
                                     sh(returnStdout: true, script: 'cd ' + ccRoot + '; su jenkins -c "tox -ve generate_auto" '))
                             }
                         ]
        ]

        print(saltModelTesting.setupDockerAndTest(configRun))
    }

}


def globalVariatorsUpdate() {
    def templateContext = readYaml text: env.COOKIECUTTER_TEMPLATE_CONTEXT
    def context = templateContext['default_context']
    // TODO add more check's for critical var's
    // Since we can't pin to any '_branch' variable from context, to identify 'default git revision' -
    // because each of them, might be 'refs/' variable, we need to add  some tricky trigger of using
    // 'release/XXX' logic. This is totall guess - so,if even those one failed, to definitely must pass
    // correct variable finally!
    [context.get('cookiecutter_template_branch'), context.get('shared_reclass_branch'), context.get('mcp_common_scripts_branch')].any { branch ->
        if (branch.toString().startsWith('release/')) {
            gitGuessedVersion = branch
            return true
        }
    }
    // Use mcpVersion git tag if not specified branch for cookiecutter-templates
    if (!context.get('cookiecutter_template_branch')) {
        context['cookiecutter_template_branch'] = gitGuessedVersion ?: context['mcp_version']
    }
    // Don't have n/t/s for cookiecutter-templates repo, therefore use master
    if (["nightly", "testing", "stable"].contains(context['cookiecutter_template_branch'])) {
        context['cookiecutter_template_branch'] = 'master'
    }
    if (!context.get('shared_reclass_branch')) {
        context['shared_reclass_branch'] = gitGuessedVersion ?: context['mcp_version']
    }
    // Don't have nightly/testing for reclass-system repo, therefore use master
    if (["nightly", "testing", "stable"].contains(context['shared_reclass_branch'])) {
        context['shared_reclass_branch'] = 'master'
    }
    if (!context.get('mcp_common_scripts_branch')) {
        // Pin exactly to CC branch, since it might use 'release/XXX' format
        context['mcp_common_scripts_branch'] = gitGuessedVersion ?: context['mcp_version']
    }
    // Don't have n/t/s for mcp-common-scripts repo, therefore use master
    if (["nightly", "testing", "stable"].contains(context['mcp_common_scripts_branch'])) {
        context['mcp_common_scripts_branch'] = 'master'
    }
    //
    distribRevision = context['mcp_version']
    if (['master'].contains(context['mcp_version'])) {
        distribRevision = 'nightly'
    }
    if (distribRevision.contains('/')) {
        distribRevision = distribRevision.split('/')[-1]
    }
    // Check if we are going to test bleeding-edge release, which doesn't have binary release yet
    // After 2018q4 releases, need to also check 'static' repo, for example ubuntu.
    def binTest = common.checkRemoteBinary(['mcp_version': distribRevision])
    if (!binTest.linux_system_repo_url || !binTest.linux_system_repo_ubuntu_url) {
        common.errorMsg("Binary release: ${distribRevision} not exist or not full. Fallback to 'proposed'! ")
        distribRevision = 'proposed'
    }

    // (azvyagintsev) WA for PROD-25732
    if (context.cookiecutter_template_url.contains('gerrit.mcp.mirantis.com/mk/cookiecutter-templates')) {
        common.warningMsg('Apply WA for PROD-25732')
        context.cookiecutter_template_url = 'ssh://gerrit.mcp.mirantis.com:29418/mk/cookiecutter-templates.git'
    }
    common.warningMsg("Fetching:\n" +
        "DISTRIB_REVISION from ${distribRevision}")
    common.infoMsg("Using context:\n")
    print prettyPrint(toJson(context))
    return context

}

timeout(time: 1, unit: 'HOURS') {
    node(slaveNode) {
        def context = globalVariatorsUpdate()
        def RequesterEmail = context.get('email_address', '')
        def templateEnv = "${env.WORKSPACE}/template"
        // modelEnv - this is reclass root, aka /srv/salt/reclass
        def modelEnv = "${env.WORKSPACE}/model"
        def testEnv = "${env.WORKSPACE}/test"
        def pipelineEnv = "${env.WORKSPACE}/pipelines"

        try {
            //
            def cutterEnv = "${env.WORKSPACE}/cutter"
            def systemEnv = "${modelEnv}/classes/system"
            def testResult = false
            def user
            wrap([$class: 'BuildUser']) {
                user = env.BUILD_USER_ID
            }
            currentBuild.description = "${context['cluster_name']} ${RequesterEmail}"

            stage('Download Cookiecutter template') {
                sh(script: 'find . -mindepth 1 -delete > /dev/null || true')
                checkout([
                    $class           : 'GitSCM',
                    branches         : [[name: 'FETCH_HEAD'],],
                    extensions       : [[$class: 'RelativeTargetDirectory', relativeTargetDir: templateEnv]],
                    userRemoteConfigs: [[url: context['cookiecutter_template_url'], refspec: context['cookiecutter_template_branch'], credentialsId: gerritCredentials],],
                ])
            }
            stage('Create empty reclass model') {
                dir(path: modelEnv) {
                    sh 'rm -rfv .git; git init'
                    sshagent(credentials: [gerritCredentials]) {
                        sh "git submodule add ${context['shared_reclass_url']} 'classes/system'"
                    }
                }
                checkout([
                    $class           : 'GitSCM',
                    branches         : [[name: 'FETCH_HEAD'],],
                    extensions       : [[$class: 'RelativeTargetDirectory', relativeTargetDir: systemEnv]],
                    userRemoteConfigs: [[url: context['shared_reclass_url'], refspec: context['shared_reclass_branch'], credentialsId: gerritCredentials],],
                ])
                git.commitGitChanges(modelEnv, 'Added new shared reclass submodule', "${user}@localhost", "${user}")
            }

            stage('Generate model') {
                def envOpts = ["GNUPGHOME=${env.WORKSPACE}/gpghome"]
                withEnv(envOpts) {
                    if (context['secrets_encryption_enabled'] == 'True') {
                        sh 'mkdir gpghome; chmod 700 gpghome'
                        def secretKeyID = RequesterEmail ?: "salt@${context['cluster_domain']}".toString()
                        if (!context.get('secrets_encryption_private_key')) {
                            def batchData = """
                                Key-Type: 1
                                Key-Length: 4096
                                Expire-Date: 0
                                Name-Real: ${context['salt_master_hostname']}.${context['cluster_domain']}
                                Name-Email: ${secretKeyID}
                            """.stripIndent()
                            writeFile file: 'gpg-batch.txt', text: batchData
                            sh "gpg --gen-key --batch < gpg-batch.txt"
                            sh "gpg --export-secret-key -a ${secretKeyID} > gpgkey.asc"
                        } else {
                            writeFile file: 'gpgkey.asc', text: context['secrets_encryption_private_key']
                            sh "gpg --import gpgkey.asc"
                            secretKeyID = sh(returnStdout: true, script: 'gpg --list-secret-keys --with-colons | awk -F: -e "/^sec/{print \\$5; exit}"').trim()
                        }
                        context['secrets_encryption_key_id'] = secretKeyID
                    }
                    if (context.get('cfg_failsafe_ssh_public_key')) {
                        writeFile file: 'failsafe-ssh-key.pub', text: context['cfg_failsafe_ssh_public_key']
                    }
                    if (!fileExists(new File(templateEnv, 'tox.ini').toString())) {
                        reqs = new File(templateEnv, 'requirements.txt').toString()
                        if (fileExists(reqs)) {
                            python.setupVirtualenv(cutterEnv, 'python2', [], reqs)
                        } else {
                            python.setupCookiecutterVirtualenv(cutterEnv)
                        }
                        python.generateModel(common2.dumpYAML(['default_context': context]), 'default_context', context['salt_master_hostname'], cutterEnv, modelEnv, templateEnv, false)
                    } else {
                        // tox-based CC generated structure of reclass,from the root. Otherwise for bw compat, modelEnv
                        // still expect only lower lvl of project, aka model/classes/cluster/XXX/. So,lets dump result into
                        // temp dir, and then copy it over initial structure.
                        reclassTempRootDir = sh(script: "mktemp -d -p ${env.WORKSPACE}", returnStdout: true).trim()
                        GenerateModelToxDocker(['context': common2.dumpYAML(['default_context': context]),
                                                'ccRoot' : templateEnv,
                                                'outDir' : reclassTempRootDir,
                                                'envOpts': envOpts])
                        dir(modelEnv) {
                            common.warningMsg('Forming reclass-root structure...')
                            sh("cp -ra ${reclassTempRootDir}/reclass/* .")
                        }
                    }
                    git.commitGitChanges(modelEnv, "Create model ${context['cluster_name']}", "${user}@localhost", "${user}")
                }
            }

            stage('Test') {
                if (runTestModel) {
                    sh("cp -r ${modelEnv} ${testEnv}")
                    if (fileExists('gpgkey.asc')) {
                        common.infoMsg('gpgkey.asc found!Copy it into reclass folder for tests..')
                        sh("cp -v gpgkey.asc ${testEnv}/salt_master_pillar.asc")
                    }
                    def DockerCName = "${env.JOB_NAME.toLowerCase()}_${env.BUILD_TAG.toLowerCase()}"
                    common.infoMsg("Attempt to run test against distribRevision: ${distribRevision}")
                    try {
                        def config = [
                            'dockerHostname'     : "${context['salt_master_hostname']}",
                            'domain'             : "${context['cluster_domain']}",
                            'reclassEnv'         : testEnv,
                            'distribRevision'    : distribRevision,
                            'dockerContainerName': DockerCName,
                            'testContext'        : 'salt-model-node',
                            'dockerExtraOpts'    : ['--memory=3g']
                        ]
                        testResult = saltModelTesting.testNode(config)
                        common.infoMsg("Test finished: SUCCESS")
                    } catch (Exception ex) {
                        common.warningMsg("Test finished: FAILED")
                        testResult = false
                    }
                } else {
                    common.warningMsg("Test stage has been skipped!")
                }
            }
            stage("Generate config drives") {
                // apt package genisoimage is required for this stage
                // download create-config-drive
                def commonScriptsRepoUrl = context['mcp_common_scripts_repo'] ?: 'ssh://gerrit.mcp.mirantis.com:29418/mcp/mcp-common-scripts'
                checkout([
                    $class           : 'GitSCM',
                    branches         : [[name: 'FETCH_HEAD'],],
                    extensions       : [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'mcp-common-scripts']],
                    userRemoteConfigs: [[url: commonScriptsRepoUrl, refspec: context['mcp_common_scripts_branch'], credentialsId: gerritCredentials],],
                ])

                def outdateGeneration = false
                if (fileExists('mcp-common-scripts/config-drive/create_config_drive.py')) {
                    sh 'cp mcp-common-scripts/config-drive/create_config_drive.py create-config-drive.py'
                } else {
                    outdateGeneration = true
                    sh 'cp mcp-common-scripts/config-drive/create_config_drive.sh create-config-drive && chmod +x create-config-drive'
                }
                sh '[ -f mcp-common-scripts/config-drive/master_config.sh ] && cp mcp-common-scripts/config-drive/master_config.sh user_data || cp mcp-common-scripts/config-drive/master_config.yaml user_data'

                sh "git clone  --depth 10 --mirror https://github.com/Mirantis/mk-pipelines.git ${pipelineEnv}/mk-pipelines"
                sh "git clone  --depth 10 --mirror https://github.com/Mirantis/pipeline-library.git ${pipelineEnv}/pipeline-library"
                args = [
                    "--user-data user_data", "--model ${modelEnv}",
                    "--mk-pipelines ${pipelineEnv}/mk-pipelines/", "--pipeline-library ${pipelineEnv}/pipeline-library/"
                ]
                if (context['secrets_encryption_enabled'] == 'True') {
                    args.add('--gpg-key gpgkey.asc')
                }
                if (context.get('cfg_failsafe_ssh_public_key')) {
                    if (outdateGeneration) {
                        args.add('--ssh-key failsafe-ssh-key.pub')
                    } else {
                        if (context.get('cfg_failsafe_user')) {
                            args.add('--ssh-keys failsafe-ssh-key.pub')
                            args.add("--cloud-user-name ${context.get('cfg_failsafe_user')}")
                        }
                    }
                }
                // load data from model
                def smc = [:]
                smc['SALT_MASTER_MINION_ID'] = "${context['salt_master_hostname']}.${context['cluster_domain']}"
                smc['SALT_MASTER_DEPLOY_IP'] = context['salt_master_management_address']
                if (outdateGeneration) {
                    smc['DEPLOY_NETWORK_GW'] = context['deploy_network_gateway']
                    smc['DEPLOY_NETWORK_NETMASK'] = context['deploy_network_netmask']
                    if (context.get('deploy_network_mtu')) {
                        smc['DEPLOY_NETWORK_MTU'] = context['deploy_network_mtu']
                    }
                    smc['DNS_SERVERS'] = context['dns_server01']
                }
                smc['MCP_VERSION'] = "${context['mcp_version']}"
                if (context['local_repositories'] == 'True') {
                    def localRepoIP = ''
                    if (context['mcp_version'] in ['2018.4.0', '2018.8.0', '2018.8.0-milestone1', '2018.11.0']) {
                        localRepoIP = context['local_repo_url']
                        smc['MCP_SALT_REPO_URL'] = "http://${localRepoIP}/ubuntu-xenial"
                    } else {
                        localRepoIP = context['aptly_server_deploy_address']
                        smc['MCP_SALT_REPO_URL'] = "http://${localRepoIP}"
                    }
                    smc['MCP_SALT_REPO_KEY'] = "http://${localRepoIP}/public.gpg"
                    smc['PIPELINES_FROM_ISO'] = 'false'
                    smc['PIPELINE_REPO_URL'] = "http://${localRepoIP}:8088"
                    smc['LOCAL_REPOS'] = 'true'
                }
                if (context['upstream_proxy_enabled'] == 'True') {
                    if (context['upstream_proxy_auth_enabled'] == 'True') {
                        smc['http_proxy'] = 'http://' + context['upstream_proxy_user'] + ':' + context['upstream_proxy_password'] + '@' + context['upstream_proxy_address'] + ':' + context['upstream_proxy_port']
                        smc['https_proxy'] = 'http://' + context['upstream_proxy_user'] + ':' + context['upstream_proxy_password'] + '@' + context['upstream_proxy_address'] + ':' + context['upstream_proxy_port']
                    } else {
                        smc['http_proxy'] = 'http://' + context['upstream_proxy_address'] + ':' + context['upstream_proxy_port']
                        smc['https_proxy'] = 'http://' + context['upstream_proxy_address'] + ':' + context['upstream_proxy_port']
                    }
                }

                for (i in common.entries(smc)) {
                    sh "sed -i 's,${i[0]}=.*,${i[0]}=${i[1]},' user_data"
                }

                // calculate netmask
                def deployNetworkSubnet = ''
                if (context.get('deploy_network_subnet')) {
                    def subnet = new SubnetUtils(context['deploy_network_subnet'])
                    deployNetworkSubnet = subnet.getInfo().getNetmask()
                } else if (context.get('deploy_network_netmask')) { // case for 2018.4.0
                    deployNetworkSubnet = context['deploy_network_netmask']
                } else {
                    error('Neither context parameter deploy_network_subnet or deploy_network_netmask should be set!')
                }
                // create cfg config-drive
                if (outdateGeneration) {
                    args += ["--hostname ${context['salt_master_hostname']}", "${context['salt_master_hostname']}.${context['cluster_domain']}-config.iso"]
                    sh "./create-config-drive ${args.join(' ')}"
                } else {
                    args += [
                        "--name ${context['salt_master_hostname']}", "--hostname ${context['salt_master_hostname']}.${context['cluster_domain']}", "--clean-up",
                        "--ip ${context['salt_master_management_address']}", "--netmask ${deployNetworkSubnet}", "--gateway ${context['deploy_network_gateway']}",
                        "--dns-nameservers ${context['dns_server01']},${context['dns_server02']}"
                    ]
                    sh "chmod 0755 create-config-drive.py ; ./create-config-drive.py ${args.join(' ')}"
                }
                sh("mkdir output-${context['cluster_name']} && mv ${context['salt_master_hostname']}.${context['cluster_domain']}-config.iso output-${context['cluster_name']}/")

                // save cfg iso to artifacts
                archiveArtifacts artifacts: "output-${context['cluster_name']}/${context['salt_master_hostname']}.${context['cluster_domain']}-config.iso"

                if (context['local_repositories'] == 'True') {
                    def aptlyServerHostname = context.aptly_server_hostname
                    sh "[ -f mcp-common-scripts/config-drive/mirror_config.yaml ] && cp mcp-common-scripts/config-drive/mirror_config.yaml mirror_config || cp mcp-common-scripts/config-drive/mirror_config.sh mirror_config"

                    def smc_apt = [:]
                    smc_apt['SALT_MASTER_DEPLOY_IP'] = context['salt_master_management_address']
                    if (outdateGeneration) {
                        smc_apt['APTLY_DEPLOY_IP'] = context['aptly_server_deploy_address']
                        smc_apt['APTLY_DEPLOY_NETMASK'] = context['deploy_network_netmask']
                    }
                    smc_apt['APTLY_MINION_ID'] = "${aptlyServerHostname}.${context['cluster_domain']}"

                    for (i in common.entries(smc_apt)) {
                        sh "sed -i \"s,export ${i[0]}=.*,export ${i[0]}=${i[1]},\" mirror_config"
                    }

                    // create apt config-drive
                    if (outdateGeneration) {
                        sh "./create-config-drive --user-data mirror_config --hostname ${aptlyServerHostname} ${aptlyServerHostname}.${context['cluster_domain']}-config.iso"
                    } else {
                        args = [
                            "--ip ${context['aptly_server_deploy_address']}", "--netmask ${deployNetworkSubnet}", "--gateway ${context['deploy_network_gateway']}",
                            "--user-data mirror_config", "--hostname ${aptlyServerHostname}.${context['cluster_domain']}", "--name ${aptlyServerHostname}", "--clean-up",
                            "--dns-nameservers ${context['dns_server01']},${context['dns_server02']}"
                        ]
                        sh "python ./create-config-drive.py ${args.join(' ')}"
                    }
                    sh("mv ${aptlyServerHostname}.${context['cluster_domain']}-config.iso output-${context['cluster_name']}/")

                    // save apt iso to artifacts
                    archiveArtifacts artifacts: "output-${context['cluster_name']}/${aptlyServerHostname}.${context['cluster_domain']}-config.iso"
                }
            }

            stage('Save changes reclass model') {
                sh(returnStatus: true, script: "tar -czf ${context['cluster_name']}.tar.gz --exclude='*@tmp' -C ${modelEnv} .")
                archiveArtifacts artifacts: "${context['cluster_name']}.tar.gz"

                if (RequesterEmail != '' && !RequesterEmail.contains('example')) {
                    emailext(to: RequesterEmail,
                        attachmentsPattern: "output-${context['cluster_name']}/*",
                        body: "Mirantis Jenkins\n\nRequested reclass model ${context['cluster_name']} has been created and attached to this email.\nEnjoy!\n\nMirantis",
                        subject: "Your Salt model ${context['cluster_name']}")
                }
                dir("output-${context['cluster_name']}") {
                    deleteDir()
                }
            }

            // Fail, but leave possibility to get failed artifacts
            if (!testResult && runTestModel) {
                common.warningMsg('Test finished: FAILURE. Please check logs and\\or debug failed model manually!')
                error('Test stage finished: FAILURE')
            }

        } catch (Throwable e) {
            currentBuild.result = "FAILURE"
            currentBuild.description = currentBuild.description ? e.message + " " + currentBuild.description : e.message
            throw e
        } finally {
            stage('Clean workspace directories') {
                sh(script: 'find . -mindepth 1 -delete > /dev/null || true')
            }
            // common.sendNotification(currentBuild.result,"",["slack"])
            stage('Save artifacts to Artifactory') {
                def artifactory = new com.mirantis.mcp.MCPArtifactory()
                def buildProps = ["context=${context['cluster_name']}"]
                if (RequesterEmail != '' && !RequesterEmail.contains('example')) {
                    buildProps.add("emailTo=${RequesterEmail}")
                }
                def artifactoryLink = artifactory.uploadJobArtifactsToArtifactory([
                    'artifactory'    : 'mcp-ci',
                    'artifactoryRepo': "drivetrain-local/${JOB_NAME}/${context['cluster_name']}-${BUILD_NUMBER}",
                    'buildProps'     : buildProps,
                ])
                currentBuild.description += "<br/>${artifactoryLink}"
            }
        }
    }
}