pipeline {
  agent {
    dockerfile {
      label 'linux'
      dir 'ci'
    }
  }

  parameters {
    string(
      name: 'ITERATIONS',
      description: 'Number of repeated integration test runs',
      defaultValue: params.ITERATIONS ?: '1000'
    )
  }

  environment {
    /* Avoid cache poisoning by other jobs. */
    GOCACHE = "${env.WORKSPACE_TMP}/go-build"
    GOPATH  = "${env.WORKSPACE_TMP}/go"
    RUST_BACKTRACE = 1
  }

  options {
    disableConcurrentBuilds()
    buildDiscarder(logRotator(
      numToKeepStr: '20',
      daysToKeepStr: '30',
    ))
  }

  stages {
    stage('Integration Tests') {
      matrix {
        axes {
          axis {
            name 'FEATURE'
            values 'libp2p'
          }
        }
        stages {
          stage('Tests') {
            options {
              lock('sync-integration-${env.GIT_COMMIT}')
            }
            stages {
              stage("BuildAndTest") {
                steps {
                  script {
                    /* To prevent rebuilding node for each test, tests are defined here */
                    def tests = ['ten_nodes_happy', 'two_nodes_happy', 'ten_nodes_one_down']

                    if (FEATURE == 'libp2p') {
                      tests.add('mixnet')
                    }

                    runBuildAndTestsForFeature(FEATURE, tests)
                  }
                }
              }
            }
          }
        }
      }
    }
  }

  post {
    failure {
      script {
        def discord = load "${WORKSPACE}/ci/discord.groovy"
        discord.sendMessage(header: 'Nightly Integration Tests Failed')
      }
    }
    success {
      script {
        def discord = load "${WORKSPACE}/ci/discord.groovy"
        discord.sendMessage(header: 'Nightly Integration Tests Passed')
      }
    }
    cleanup { cleanWs() }
  }
}

def runBuildAndTestsForFeature(feature, tests) {
  echo "Building node for feature: ${feature}"
  def build_node = "cargo build --all --no-default-features --features ${feature}"

  if (sh(script: build_node, returnStatus: true) != 0) {
    error("Build '${feature}' node failed")
    return
  }

  int iterations = params.ITERATIONS.toInteger()
  runTestCases(tests, iterations)
}

def runTestCases(test_cases, iterations) {
  for (int i = 0; i < iterations; i++) {
    echo "Running iteration ${i + 1} of ${iterations}"

    for (test_case in test_cases) {
      def test_cmd = "cargo test -p tests --all --no-default-features --features ${feature} ${test_case}"
      if (sh(script: test_cmd, returnStatus: true) != 0) {
        error("Test '${test_case}' failed on iteration ${i + 1}")
        return
      }
    }
  }
}