pipeline {
  agent {
    kubernetes {
      defaultContainer 'builder'
      yaml """
apiVersion: v1
kind: Pod
spec:
  nodeSelector:
    kubernetes.io/arch: arm64
    node-role.kubernetes.io/worker: "true"
  containers:
    - name: dind
      image: docker:27-dind
      securityContext:
        privileged: true
      env:
        - name: DOCKER_TLS_CERTDIR
          value: ""
      args:
        - "--mtu=1400"
        - "--host=unix:///var/run/docker.sock"
        - "--host=tcp://0.0.0.0:2375"
      volumeMounts:
        - name: dind-storage
          mountPath: /var/lib/docker
        - name: workspace-volume
          mountPath: /home/jenkins/agent
    - name: builder
      image: docker:27
      command:
        - cat
      tty: true
      env:
        - name: DOCKER_HOST
          value: tcp://localhost:2375
        - name: DOCKER_TLS_CERTDIR
          value: ""
      volumeMounts:
        - name: workspace-volume
          mountPath: /home/jenkins/agent
        - name: docker-config-writable
          mountPath: /root/.docker
        - name: harbor-config
          mountPath: /docker-config
    - name: tester
      image: golang:1.23-bookworm
      command:
        - cat
      tty: true
      volumeMounts:
        - name: workspace-volume
          mountPath: /home/jenkins/agent
  volumes:
    - name: docker-config-writable
      emptyDir: {}
    - name: dind-storage
      persistentVolumeClaim:
        claimName: jenkins-dind-cache
    - name: harbor-config
      secret:
        secretName: harbor-bstein-robot
        items:
          - key: .dockerconfigjson
            path: config.json
    - name: workspace-volume
      emptyDir: {}
"""
    }
  }
  environment {
    SUITE_NAME = 'soteria'
    PUSHGATEWAY_URL = 'http://platform-quality-gateway.monitoring.svc.cluster.local:9091'
  }
  stages {
    stage('Checkout') {
      steps {
        checkout scm
      }
    }
    stage('Prep toolchain') {
      steps {
        container('builder') {
          sh '''
            set -euo pipefail
            apk add --no-cache bash git jq curl
            mkdir -p /root/.docker
            cp /docker-config/config.json /root/.docker/config.json
          '''
        }
      }
    }
    stage('Unit tests') {
      steps {
        container('tester') {
          sh '''
            set -euo pipefail
            go test ./...
          '''
        }
      }
    }
    stage('Compute version') {
      steps {
        container('builder') {
          script {
            sh 'git config --global --add safe.directory /home/jenkins/agent/workspace/Soteria'
            def semver = sh(returnStdout: true, script: 'git describe --tags --exact-match || true').trim()
            if (!semver) {
              semver = sh(returnStdout: true, script: 'git rev-list --count HEAD').trim()
              semver = "0.1.0-${semver}"
            }
            sh "echo SEMVER=${semver} > build.env"
          }
        }
      }
    }
    stage('Buildx setup') {
      steps {
        container('builder') {
          sh '''
            set -euo pipefail
            seq 1 10 | while read _; do
              docker info && break || sleep 2
            done
            BUILDER_NAME="soteria-${BUILD_NUMBER}"
            docker buildx rm "${BUILDER_NAME}" >/dev/null 2>&1 || true
            docker buildx create --name "${BUILDER_NAME}" --driver docker-container --bootstrap --use
          '''
        }
      }
    }
    stage('Build & push image') {
      steps {
        container('builder') {
          sh '''
            set -euo pipefail
            VERSION_TAG=$(cut -d= -f2 build.env)
            docker buildx build --platform linux/arm64 \
              --provenance=false \
              --tag registry.bstein.dev/bstein/soteria:${VERSION_TAG} \
              --tag registry.bstein.dev/bstein/soteria:latest \
              --push .
          '''
        }
      }
    }
  }
  post {
    success {
      container('builder') {
        sh '''
          set -euo pipefail
          suite="${SUITE_NAME}"
          gateway="${PUSHGATEWAY_URL}"
          fetch_counter() {
            status="$1"
            line="$(curl -fsS "${gateway}/metrics" 2>/dev/null | awk -v suite="${suite}" -v status="${status}" '
              /^platform_quality_gate_runs_total{/ {
                if (index($0, "job=\\"platform-quality-ci\\"") && index($0, "suite=\\"" suite "\\"") && index($0, "status=\\"" status "\\"")) {
                  print $2
                  exit
                }
              }
            ' || true)"
            [ -n "${line}" ] && printf '%s\n' "${line}" || printf '0\n'
          }
          ok_count="$(fetch_counter ok)"
          failed_count="$(fetch_counter failed)"
          ok_count=$((ok_count + 1))
          cat <<METRICS | curl -fsS --data-binary @- "${gateway}/metrics/job/platform-quality-ci/suite/${suite}" >/dev/null
# TYPE platform_quality_gate_runs_total counter
platform_quality_gate_runs_total{suite="${suite}",status="ok"} ${ok_count}
platform_quality_gate_runs_total{suite="${suite}",status="failed"} ${failed_count}
METRICS
        '''
      }
    }
    failure {
      container('builder') {
        sh '''
          set -euo pipefail
          suite="${SUITE_NAME}"
          gateway="${PUSHGATEWAY_URL}"
          fetch_counter() {
            status="$1"
            line="$(curl -fsS "${gateway}/metrics" 2>/dev/null | awk -v suite="${suite}" -v status="${status}" '
              /^platform_quality_gate_runs_total{/ {
                if (index($0, "job=\\"platform-quality-ci\\"") && index($0, "suite=\\"" suite "\\"") && index($0, "status=\\"" status "\\"")) {
                  print $2
                  exit
                }
              }
            ' || true)"
            [ -n "${line}" ] && printf '%s\n' "${line}" || printf '0\n'
          }
          ok_count="$(fetch_counter ok)"
          failed_count="$(fetch_counter failed)"
          failed_count=$((failed_count + 1))
          cat <<METRICS | curl -fsS --data-binary @- "${gateway}/metrics/job/platform-quality-ci/suite/${suite}" >/dev/null
# TYPE platform_quality_gate_runs_total counter
platform_quality_gate_runs_total{suite="${suite}",status="ok"} ${ok_count}
platform_quality_gate_runs_total{suite="${suite}",status="failed"} ${failed_count}
METRICS
        '''
      }
    }
    always {
      script {
        if (fileExists('build.env')) {
          def env = readProperties file: 'build.env'
          echo "Build complete for ${env.SEMVER}"
        }
      }
      archiveArtifacts artifacts: 'build/*', allowEmptyArchive: true
    }
  }
}