name: Formbricks Cloud Deployment

on:
  workflow_dispatch:
    inputs:
      VERSION:
        description: "The version of the Docker image to release (clean SemVer, e.g., 1.2.3)"
        required: true
        type: string
      REPOSITORY:
        description: "The repository to use for the Docker image"
        required: false
        type: string
        default: "ghcr.io/formbricks/formbricks"
      ENVIRONMENT:
        description: "The environment to deploy to"
        required: true
        type: choice
        options:
          - staging
          - production
  workflow_call:
    inputs:
      VERSION:
        description: "The version of the Docker image to release"
        required: true
        type: string
      REPOSITORY:
        description: "The repository to use for the Docker image"
        required: false
        type: string
        default: "ghcr.io/formbricks/formbricks"
      ENVIRONMENT:
        description: "The environment to deploy to"
        required: true
        type: string

permissions:
  id-token: write
  contents: read

jobs:
  helmfile-deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Harden the runner (Audit all outbound calls)
        uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
        with:
          egress-policy: audit

      - name: Checkout
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

      - name: Tailscale
        uses: tailscale/github-action@84a3f23bb4d843bcf4da6cf824ec1be473daf4de # v3.2.3
        with:
          oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}
          oauth-secret: ${{ secrets.TS_OAUTH_SECRET }}
          tags: tag:github
          args: --accept-routes

      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@f24d7193d98baebaeacc7e2227925dd47cc267f5 # v4.2.0
        with:
          role-to-assume: ${{ secrets.AWS_ASSUME_ROLE_ARN }}
          aws-region: "eu-central-1"

      - name: Setup Cluster Access
        run: |
          aws eks update-kubeconfig --name formbricks-prod-eks --region eu-central-1
        env:
          AWS_REGION: eu-central-1

      - uses: helmfile/helmfile-action@712000e3d4e28c72778ecc53857746082f555ef3 # v2.0.4
        name: Deploy Formbricks Cloud Production
        if: inputs.ENVIRONMENT == 'production'
        env:
          VERSION: ${{ inputs.VERSION }}
          REPOSITORY: ${{ inputs.REPOSITORY }}
          FORMBRICKS_S3_BUCKET: ${{ secrets.FORMBRICKS_S3_BUCKET }}
          FORMBRICKS_INGRESS_CERT_ARN: ${{ secrets.FORMBRICKS_INGRESS_CERT_ARN }}
          FORMBRICKS_ROLE_ARN: ${{ secrets.FORMBRICKS_ROLE_ARN }}
        with:
          helmfile-version: "v1.0.0"
          helm-plugins: >
            https://github.com/databus23/helm-diff,
            https://github.com/jkroepke/helm-secrets
          helmfile-args: apply -l environment=prod
          helmfile-auto-init: "false"
          helmfile-workdirectory: infra/formbricks-cloud-helm

      - uses: helmfile/helmfile-action@712000e3d4e28c72778ecc53857746082f555ef3 # v2.0.4
        name: Deploy Formbricks Cloud Staging
        if: inputs.ENVIRONMENT == 'staging'
        env:
          VERSION: ${{ inputs.VERSION }}
          REPOSITORY: ${{ inputs.REPOSITORY }}
          FORMBRICKS_INGRESS_CERT_ARN: ${{ secrets.STAGE_FORMBRICKS_INGRESS_CERT_ARN }}
          FORMBRICKS_ROLE_ARN: ${{ secrets.STAGE_FORMBRICKS_ROLE_ARN }}
        with:
          helmfile-version: "v1.0.0"
          helm-plugins: >
            https://github.com/databus23/helm-diff,
            https://github.com/jkroepke/helm-secrets
          helmfile-args: apply -l environment=stage
          helmfile-auto-init: "false"
          helmfile-workdirectory: infra/formbricks-cloud-helm

      - name: Purge Cloudflare Cache
        if: ${{ inputs.ENVIRONMENT == 'production' || inputs.ENVIRONMENT == 'staging' }}
        env:
          CF_ZONE_ID: ${{ secrets.CLOUDFLARE_ZONE_ID }}
          CF_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          ENVIRONMENT: ${{ inputs.ENVIRONMENT }}
        run: |
          # Set hostname based on environment
          if [[ "$ENVIRONMENT" == "production" ]]; then
            PURGE_HOST="app.formbricks.com"
          else
            PURGE_HOST="stage.app.formbricks.com"
          fi

          echo "Purging Cloudflare cache for host: $PURGE_HOST (environment: $ENVIRONMENT, zone: $CF_ZONE_ID)"

          # Prepare JSON payload for selective cache purge
          json_payload=$(cat << EOF
          {
            "hosts": ["$PURGE_HOST"]
          }
          EOF
          )

          # Make API call to Cloudflare
          response=$(curl -s -X POST \
            "https://api.cloudflare.com/client/v4/zones/$CF_ZONE_ID/purge_cache" \
            -H "Authorization: Bearer $CF_API_TOKEN" \
            -H "Content-Type: application/json" \
            --data "$json_payload")

          echo "Cloudflare API response: $response"

          # Verify the operation was successful
          if [[ "$(echo "$response" | jq -r .success)" == "true" ]]; then
            echo "✅ Successfully purged cache for $PURGE_HOST"
          else
            echo "❌ Cloudflare cache purge failed"
            echo "Error details: $(echo "$response" | jq -r .errors)"
            exit 1
          fi