// Copyright 2019 Google LLC
//
// Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://llvm.org/LICENSE.txt
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

def success = true

pipeline {
    agent { label 'windows' }
    parameters {
        string(name: 'DIFF_ID')
        string(name: 'PHID')
    }
    environment {
        CONDUIT_TOKEN = credentials('phabricator-conduit-token')
        PHABRICATOR_HOST = 'https://reviews.llvm.org'
        PHAB_LOG = "${WORKSPACE}/build/.phabricator-comment"
        MY_BUILD_ID = "${JOB_BASE_NAME}-${BUILD_NUMBER}"
        RESULT_URL = "https://pantheon.corp.google.com/storage/browser/llvm-premerge-checks/results/${MY_BUILD_ID}"
        SCRIPT_DIR = "${WORKSPACE}/llvm-premerge-checks/scripts"
        // store all build results here, will be uploaded to GCS later
        RESULT_DIR = "${WORKSPACE}\\results"
        LLVM_DIR = "${WORKSPACE}\\llvm-project"
    }
    stages {
        stage("build info"){
            steps {
                echo "Building diff ${DIFF_ID} with PHID ${PHID}"
            }
        }
        stage("git checkout"){
            steps {
                echo "getting llvm-premerge-checks... "
                dir("llvm-premerge-checks")
                {
                    git url: 'https://github.com/google/llvm-premerge-checks.git'
                }
                echo "getting llvm-project... "
                dir("llvm-project")
                {
                    bat ""
                    bat 'if exist "build" rd /s/q "build"'
                    git url: 'https://github.com/llvm/llvm-project.git'
                }
                // create ${RESULT_DIR}
                powershell """
                    Remove-Item ${RESULT_DIR} -Recurse -ErrorAction Ignore
                    New-Item -ItemType Directory -Force -Path ${RESULT_DIR} | Out-Null
                    """
            }            
        }
        stage('arc patch'){
            steps {
                dir("${LLVM_DIR}"){
                    bat """
                        python ${SCRIPT_DIR}/phabtalk/apply_patch2.py --comment-file ${PHAB_LOG}  --token ${CONDUIT_TOKEN} --url ${PHABRICATOR_HOST} ${DIFF_ID}
                        """
                }
            }
        }
        stage('CMake') {
            steps {
                dir("${LLVM_DIR}"){
                    powershell "${SCRIPT_DIR}/run_cmake.ps1 -projects detect"
                }
            }
        }
        stage('ninja all') {
            steps {
                dir("${LLVM_DIR}"){
                    powershell "${SCRIPT_DIR}/run_ninja.ps1 all"
                }
            }
        }
        stage('ninja check-all') {
            steps {
                dir("${LLVM_DIR}"){
                    powershell "${SCRIPT_DIR}/run_ninja.ps1 check-all"
                }
            }
        }
    }
    post { 
        always { 
            echo "Uploading logs to ${RESULT_URL} ..."
            dir("${env.RESULT_DIR}") {
                // gather all result files in a folder
                powershell """
                    Write-Host "Getting the console log..."
                    Invoke-WebRequest -OutFile console-log.txt -uri "http://jenkins.local:8080/job/${JOB_BASE_NAME}/${BUILD_NUMBER}/consoleText" -ErrorAction "Continue"
                    
                    Write-Host "Copying build artefacts..."
                    Copy-Item "${LLVM_DIR}\\choose_projects.log" -ErrorAction Continue
                    Copy-Item "${LLVM_DIR}\\build\\CMakeCache.txt" -ErrorAction Continue
                    Copy-Item "${LLVM_DIR}\\build\\test-results.xml" -ErrorAction Continue
                """                               
            }
            /// send results to Phabricator
            bat """python ${SCRIPT_DIR}/phabtalk/phabtalk.py "${PHID}" "${DIFF_ID}" \
                --workspace "${LLVM_DIR}" \
                --conduit-token "${CONDUIT_TOKEN}" \
                --test-result-file "test-results.xml" \
                --host "${PHABRICATOR_HOST}/api/" \
                --buildresult ${currentBuild.result} \
                --results-dir "${env.RESULT_DIR}" \
                --results-url "${RESULT_URL}" \
                --failures "${failure_message}"
                """            
            dir("${env.RESULT_DIR}") {
                // upload results to
                // Google Cloud Storage
                powershell """
                    Write-Host "Uploading results to GCS..."
                    \$ErrorActionPreference = 'Continue'
                    gsutil cp *.* gs://llvm-premerge-checks/results/${MY_BUILD_ID}/
                    Write-Host "Done."
                """
            }
        } 
    }
}