name: Promote to Production

on:
  workflow_dispatch:
    inputs:
      tag:
        description: "Image tag to promote (e.g. 2026.03.28-f1b85bf)"
        required: true
        type: string

jobs:
  promote:
    name: Promote to Production
    runs-on: ubuntu-latest
    steps:
      - name: Validate tag format
        run: |
          TAG="${{ inputs.tag }}"
          if ! echo "$TAG" | grep -qE '^[0-9]{4}\.[0-9]{2}\.[0-9]{2}-[a-f0-9]{7}$'; then
            echo "::error::Invalid tag format: '$TAG'. Expected format: YYYY.MM.DD-sha7 (e.g. 2026.03.28-f1b85bf)"
            exit 1
          fi
          echo "Tag format valid: $TAG"

      - name: Verify image exists in Gitea Container Registry
        env:
          GITEA_TOKEN: ${{ gitea.token }}
        run: |
          TAG="${{ inputs.tag }}"
          if ! curl -sf \
            -H "Authorization: token $GITEA_TOKEN" \
            "https://git.farh.net/api/v1/packages/groombook?type=container&limit=50" \
            | jq -e --arg t "$TAG" '[.[] | select(.name == "api" and .version == $t)] | length > 0' > /dev/null 2>&1; then
            echo "::warning::Could not verify git.farh.net/groombook/api:$TAG via package API — verify manually if needed."
          else
            echo "Image verified: git.farh.net/groombook/api:$TAG exists"
          fi

      - name: Clone groombook/infra
        env:
          GITEA_TOKEN: ${{ gitea.token }}
        run: |
          git clone https://oauth2:$GITEA_TOKEN@git.farh.net/groombook/infra.git /tmp/infra

      - name: Install yq
        run: |
          sudo wget -qO /usr/local/bin/yq https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64
          sudo chmod +x /usr/local/bin/yq

      - name: Update prod overlay image tags and base Job names
        env:
          TAG: ${{ inputs.tag }}
        run: |
          cd /tmp/infra
          PROD_KUST="apps/groombook/overlays/prod/kustomization.yaml"

          SHORT_SHA="${TAG##*-}"
          export SHORT_SHA
          export TAG

          yq -i '(.images[] | select(.name == "git.farh.net/groombook/api")).newTag = env(TAG)' "$PROD_KUST"
          yq -i '(.images[] | select(.name == "git.farh.net/groombook/web")).newTag = env(TAG)' "$PROD_KUST"
          yq -i '(.images[] | select(.name == "git.farh.net/groombook/migrate")).newTag = env(TAG)' "$PROD_KUST"
          yq -i '(.images[] | select(.name == "git.farh.net/groombook/seed")).newTag = env(TAG)' "$PROD_KUST"

          MIGRATE_JOB="apps/groombook/base/migrate-job.yaml"
          if [ -f "$MIGRATE_JOB" ]; then
            yq -i '.metadata.name = "migrate-schema-" + env(SHORT_SHA)' "$MIGRATE_JOB"
            yq -i '.metadata.annotations."groombook.app/deploy-version" = env(TAG)' "$MIGRATE_JOB"
          fi

          SEED_JOB="apps/groombook/base/seed-job.yaml"
          if [ -f "$SEED_JOB" ]; then
            yq -i '.metadata.name = "seed-test-data-" + env(SHORT_SHA)' "$SEED_JOB"
            yq -i '.metadata.annotations."groombook.app/deploy-version" = env(TAG)' "$SEED_JOB"
          fi

          git -C /tmp/infra diff --stat

      - name: Create PR on groombook/infra
        env:
          TAG: ${{ inputs.tag }}
          GITEA_TOKEN: ${{ gitea.token }}
        run: |
          cd /tmp/infra
          git config user.name "groombook-engineer[bot]"
          git config user.email "groombook-engineer[bot]@git.farh.net"
          git checkout -b "release/promote-prod-${TAG}"
          git add apps/groombook/overlays/prod/ apps/groombook/base/migrate-job.yaml apps/groombook/base/seed-job.yaml
          git commit -m "release: promote ${TAG} to production"
          git push -u origin "release/promote-prod-${TAG}"
          curl -s -X POST \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            "https://git.farh.net/api/v1/repos/groombook/infra/pulls" \
            -d "{\"head\":\"release/promote-prod-${TAG}\",\"base\":\"main\",\"title\":\"release: promote ${TAG} to production\",\"body\":\"Promote image tag ${TAG} to production after UAT sign-off. cc @cpfarhood\"}"

      - name: Notify on failure
        if: failure()
        env:
          GITEA_TOKEN: ${{ gitea.token }}
          RUN_ID: ${{ github.run_id }}
        run: |
          curl -s -X POST \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            "https://git.farh.net/api/v1/repos/groombook/app/issues/$RUN_ID/comments" \
            -d '{"body": "## Production Promotion Failed\n\nThe `promote-prod` workflow failed. Check the workflow run logs for details."}'