# Tekton Update GitOps Task for Bakery-IA CI/CD
# This task updates GitOps manifests with new image tags

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: update-gitops
  namespace: {{ .Release.Namespace }}
  labels:
    app.kubernetes.io/name: {{ .Values.labels.app.name }}
    app.kubernetes.io/component: gitops
spec:
  workspaces:
    - name: source
      description: Workspace containing the source code
    - name: git-credentials
      description: Git credentials for pushing changes
  params:
    - name: services
      type: string
      description: Comma-separated list of services to update
    - name: registry
      type: string
      description: Container registry URL
    - name: git-revision
      type: string
      description: Git revision to tag images with
    - name: git-branch
      type: string
      description: Git branch to push changes to
    - name: dry-run
      type: string
      description: Dry run mode - don't push changes
      default: "false"
  steps:
    - name: update-manifests
      image: alpine/git:2.43.0
      securityContext:
        runAsNonRoot: true
        runAsUser: 65532
        allowPrivilegeEscalation: false
        capabilities:
          drop:
            - ALL
        seccompProfile:
          type: RuntimeDefault
      workingDir: $(workspaces.source.path)
      env:
        - name: HOME
          value: /tekton/home
        - name: GIT_USERNAME
          valueFrom:
            secretKeyRef:
              name: gitea-git-credentials
              key: username
        - name: GIT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: gitea-git-credentials
              key: password
      script: |
        #!/bin/sh
        set -e

        echo "============================================"
        echo "Updating GitOps Manifests"
        echo "Services: $(params.services)"
        echo "Registry: $(params.registry)"
        echo "Revision: $(params.git-revision)"
        echo "Branch: $(params.git-branch)"
        echo "Dry run: $(params.dry-run)"
        echo "============================================"

        # Configure git
        git config --global user.email "ci@bakery-ia.local"
        git config --global user.name "bakery-ia-ci"
        # Mark directories as safe to avoid ownership issues
        git config --global --add safe.directory /tmp/gitops
        git config --global --add safe.directory "$(workspaces.source.path)"

        # Clone the main repository (not a separate gitops repo)
        # Use external HTTPS URL via ingress for reliable TLS connectivity
        REPO_URL="https://${GIT_USERNAME}:${GIT_PASSWORD}@gitea.bakewise.ai/bakery-admin/bakery-ia.git"
        git clone "$REPO_URL" /tmp/gitops

        cd /tmp/gitops

        # Switch to target branch
        git checkout "$(params.git-branch)" || git checkout -b "$(params.git-branch)"

        # Compute short hash once for job name updates
        SHORT_HASH=$(echo "$(params.git-revision)" | cut -c 1-8)

        # Update image tags in Kubernetes manifests
        # Service names come from detect-changes task as folder names: auth, tenant, ai_insights, etc.
        for service in $(echo "$(params.services)" | tr ',' '\n'); do
          service=$(echo "$service" | xargs)  # Trim whitespace
          if [ -n "$service" ] && [ "$service" != "none" ] && [ "$service" != "infrastructure" ] && [ "$service" != "shared" ]; then
            echo ""
            echo "============================================"
            echo "Updating manifest for service: $service"
            echo "============================================"

            # IMAGE_NAME is the same as the service folder name (matching Kaniko output)
            # This ensures consistency: folder name = image name = manifest reference
            IMAGE_NAME="$service"

            # Determine manifest paths based on service
            # Directory structure uses hyphens: ai-insights, alert-processor, demo-session
            # But image names use underscores: ai_insights, alert_processor, demo_session
            service_dir=$(echo "$service" | sed 's/_/-/g')

            if [ "$service" = "gateway" ]; then
              MANIFEST_PATH="infrastructure/platform/gateway/gateway-service.yaml"
            elif [ "$service" = "frontend" ]; then
              MANIFEST_PATH="infrastructure/services/microservices/frontend/frontend-service.yaml"
            elif [ "$service" = "alert_processor" ]; then
              MANIFEST_PATH="infrastructure/services/microservices/alert-processor/alert-processor.yaml"
            elif [ "$service" = "demo_session" ]; then
              # demo-session uses deployment.yaml instead of demo-session-service.yaml
              MANIFEST_PATH="infrastructure/services/microservices/demo-session/deployment.yaml"
            else
              # Standard services: auth, tenant, orders, inventory, etc.
              # Also handles: ai_insights -> ai-insights, external -> external
              MANIFEST_PATH="infrastructure/services/microservices/${service_dir}/${service_dir}-service.yaml"
            fi

            # Update the image tag in the deployment YAML
            if [ -f "$MANIFEST_PATH" ]; then
              # Update image reference - match the exact image name pattern used in manifests
              sed -i "s|image: registry.bakewise.ai/bakery-admin/${IMAGE_NAME}:.*|image: $(params.registry)/${IMAGE_NAME}:$(params.git-revision)|g" "$MANIFEST_PATH"
              echo "Updated: $MANIFEST_PATH -> $(params.registry)/${IMAGE_NAME}:$(params.git-revision)"
            else
              echo "Warning: Manifest not found: $MANIFEST_PATH"
            fi

            # Update migration job if it exists
            # Migration jobs use the hyphenated directory name
            MIGRATION_JOB_PATH="infrastructure/services/microservices/${service_dir}/migrations/${service_dir}-migration-job.yaml"
            if [ -f "$MIGRATION_JOB_PATH" ]; then
              # Update migration job image reference
              sed -i "s|image: registry.bakewise.ai/bakery-admin/${IMAGE_NAME}:.*|image: $(params.registry)/${IMAGE_NAME}:$(params.git-revision)|g" "$MIGRATION_JOB_PATH"
              # Update job name to include short commit hash (makes it unique for K8s)
              sed -i "s|name: ${service_dir}-migration-[a-f0-9]*|name: ${service_dir}-migration-${SHORT_HASH}|g" "$MIGRATION_JOB_PATH"
              # Also update labels to match
              sed -i "s|app.kubernetes.io/name: ${service_dir}-migration-[a-f0-9]*|app.kubernetes.io/name: ${service_dir}-migration-${SHORT_HASH}|g" "$MIGRATION_JOB_PATH"
              echo "Updated migration: $MIGRATION_JOB_PATH"
            fi

            # Special case: external service has additional jobs
            if [ "$service" = "external" ]; then
              # Update external-data-init job
              EXTERNAL_DATA_INIT_JOB="infrastructure/services/microservices/external/migrations/external-data-init-job.yaml"
              if [ -f "$EXTERNAL_DATA_INIT_JOB" ]; then
                sed -i "s|image: registry.bakewise.ai/bakery-admin/external:.*|image: $(params.registry)/external:$(params.git-revision)|g" "$EXTERNAL_DATA_INIT_JOB"
                sed -i "s|name: external-data-init-[a-f0-9]*|name: external-data-init-${SHORT_HASH}|g" "$EXTERNAL_DATA_INIT_JOB"
                echo "Updated external-data-init job: $EXTERNAL_DATA_INIT_JOB"
              fi

              # Update external-data-rotation cronjob
              EXTERNAL_DATA_ROTATION_JOB="infrastructure/services/microservices/external/cronjobs/external-data-rotation-cronjob.yaml"
              if [ -f "$EXTERNAL_DATA_ROTATION_JOB" ]; then
                sed -i "s|image: registry.bakewise.ai/bakery-admin/external:.*|image: $(params.registry)/external:$(params.git-revision)|g" "$EXTERNAL_DATA_ROTATION_JOB"
                sed -i "s|name: external-data-rotation-[a-f0-9]*|name: external-data-rotation-${SHORT_HASH}|g" "$EXTERNAL_DATA_ROTATION_JOB"
                echo "Updated external-data-rotation cronjob: $EXTERNAL_DATA_ROTATION_JOB"
              fi
            fi

            # Special case: demo_session service has cleanup worker
            if [ "$service" = "demo_session" ]; then
              DEMO_CLEANUP_WORKER="infrastructure/services/microservices/demo-session/demo-cleanup-worker.yaml"
              if [ -f "$DEMO_CLEANUP_WORKER" ]; then
                sed -i "s|image: registry.bakewise.ai/bakery-admin/demo_session:.*|image: $(params.registry)/demo_session:$(params.git-revision)|g" "$DEMO_CLEANUP_WORKER"
                sed -i "s|name: demo-cleanup-worker-[a-f0-9]*|name: demo-cleanup-worker-${SHORT_HASH}|g" "$DEMO_CLEANUP_WORKER"
                echo "Updated demo-cleanup-worker: $DEMO_CLEANUP_WORKER"
              fi
            fi
          fi
        done

        # Commit and push changes (unless dry-run)
        if [ "$(params.dry-run)" != "true" ]; then
          git add .
          git status
          if ! git diff --cached --quiet; then
            git commit -m "Update images for services: $(params.services) [skip ci]"
            git push origin "$(params.git-branch)"
            echo "GitOps manifests updated successfully"
          else
            echo "No changes to commit"
          fi
        else
          echo "Dry run mode - changes not pushed"
          git status
          git diff
        fi
      resources:
        limits:
          cpu: 500m
          memory: 512Mi
        requests:
          cpu: 100m
          memory: 128Mi