name: deploy admin

on:
  push:
    branches:
      - main
      - canary
    paths:
      - fluxer_admin/**
      - .github/workflows/deploy-admin.yaml
  workflow_dispatch:
    inputs:
      channel:
        type: choice
        options:
          - stable
          - canary
        default: stable
        description: Channel to deploy
      ref:
        type: string
        required: false
        default: ''
        description: Optional git ref to deploy (defaults to main/canary based on channel)

concurrency:
  group: deploy-fluxer-admin-${{ github.event_name == 'workflow_dispatch' && inputs.channel || (github.ref_name == 'canary' && 'canary') || 'stable' }}
  cancel-in-progress: true

permissions:
  contents: read
jobs:
  channel-vars:
    uses: ./.github/workflows/channel-vars.yaml
    with:
      github_event_name: ${{ github.event_name }}
      github_ref_name: ${{ github.ref_name }}
      github_ref: ${{ github.ref }}
      workflow_dispatch_channel: ${{ github.event_name == 'workflow_dispatch' && inputs.channel || '' }}
      workflow_dispatch_ref: ${{ github.event_name == 'workflow_dispatch' && inputs.ref || '' }}

  deploy:
    name: Deploy admin
    needs: channel-vars
    runs-on: blacksmith-2vcpu-ubuntu-2404
    timeout-minutes: 10
    env:
      CHANNEL: ${{ needs.channel-vars.outputs.channel }}
      IS_CANARY: ${{ needs.channel-vars.outputs.is_canary }}
      SOURCE_REF: ${{ needs.channel-vars.outputs.source_ref }}
      STACK_SUFFIX: ${{ needs.channel-vars.outputs.stack_suffix }}
      STACK: ${{ format('fluxer-admin{0}', needs.channel-vars.outputs.stack_suffix) }}
      CACHE_SCOPE: ${{ format('deploy-fluxer-admin{0}', needs.channel-vars.outputs.stack_suffix) }}
      CADDY_DOMAIN: ${{ needs.channel-vars.outputs.is_canary == 'true' && 'admin.canary.fluxer.app' || 'admin.fluxer.app' }}
      APP_ENDPOINT: ${{ needs.channel-vars.outputs.is_canary == 'true' && 'https://web.canary.fluxer.app' || 'https://web.fluxer.app' }}
      API_PUBLIC_ENDPOINT: ${{ needs.channel-vars.outputs.is_canary == 'true' && 'https://api.canary.fluxer.app' || 'https://api.fluxer.app' }}
      ADMIN_ENDPOINT: ${{ needs.channel-vars.outputs.is_canary == 'true' && 'https://admin.canary.fluxer.app' || 'https://admin.fluxer.app' }}
      ADMIN_REDIRECT_URI: ${{ needs.channel-vars.outputs.is_canary == 'true' && 'https://admin.canary.fluxer.app/oauth2_callback' || 'https://admin.fluxer.app/oauth2_callback' }}
      REPLICAS: ${{ needs.channel-vars.outputs.is_canary == 'true' && 1 || 2 }}
    steps:
      - uses: actions/checkout@v6
        with:
          ref: ${{ env.SOURCE_REF }}
          fetch-depth: 0

      - name: Record deploy commit
        run: |
          set -euo pipefail
          sha=$(git rev-parse HEAD)
          echo "Deploying commit ${sha}"
          printf 'DEPLOY_SHA=%s\n' "$sha" >> "$GITHUB_ENV"

      - name: Set build timestamp
        run: echo "BUILD_TIMESTAMP=$(date -u +%s)" >> "$GITHUB_ENV"

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Build image
        uses: docker/build-push-action@v6
        with:
          context: fluxer_admin
          file: fluxer_admin/Dockerfile
          tags: ${{ env.STACK }}:${{ env.DEPLOY_SHA }}
          load: true
          platforms: linux/amd64
          cache-from: type=gha,scope=${{ env.CACHE_SCOPE }}
          cache-to: type=gha,mode=max,scope=${{ env.CACHE_SCOPE }}
          build-args: |
            BUILD_TIMESTAMP=${{ env.BUILD_TIMESTAMP }}
        env:
          DOCKER_BUILD_SUMMARY: false
          DOCKER_BUILD_RECORD_UPLOAD: false

      - name: Install docker-pussh
        run: |
          set -euo pipefail
          mkdir -p ~/.docker/cli-plugins
          curl -fsSL https://raw.githubusercontent.com/psviderski/unregistry/v0.3.1/docker-pussh \
            -o ~/.docker/cli-plugins/docker-pussh
          chmod +x ~/.docker/cli-plugins/docker-pussh

      - name: Set up SSH agent
        uses: webfactory/ssh-agent@v0.9.1
        with:
          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY_SERVER }}

      - name: Add server to known hosts
        run: |
          set -euo pipefail
          mkdir -p ~/.ssh
          ssh-keyscan -H ${{ secrets.SERVER_IP }} >> ~/.ssh/known_hosts

      - name: Push image and deploy
        env:
          IMAGE_TAG: ${{ env.STACK }}:${{ env.DEPLOY_SHA }}
          SERVER: ${{ secrets.SERVER_USER }}@${{ secrets.SERVER_IP }}
          STACK: ${{ env.STACK }}
          APP_ENDPOINT: ${{ env.APP_ENDPOINT }}
          API_PUBLIC_ENDPOINT: ${{ env.API_PUBLIC_ENDPOINT }}
          ADMIN_ENDPOINT: ${{ env.ADMIN_ENDPOINT }}
          ADMIN_REDIRECT_URI: ${{ env.ADMIN_REDIRECT_URI }}
          CADDY_DOMAIN: ${{ env.CADDY_DOMAIN }}
          REPLICAS: ${{ env.REPLICAS }}
        run: |
          set -euo pipefail
          docker pussh "${IMAGE_TAG}" "${SERVER}"

          ssh "${SERVER}" \
            "IMAGE_TAG=${IMAGE_TAG} STACK=${STACK} APP_ENDPOINT=${APP_ENDPOINT} API_PUBLIC_ENDPOINT=${API_PUBLIC_ENDPOINT} ADMIN_ENDPOINT=${ADMIN_ENDPOINT} ADMIN_REDIRECT_URI=${ADMIN_REDIRECT_URI} CADDY_DOMAIN=${CADDY_DOMAIN} REPLICAS=${REPLICAS} bash" << 'EOF'
          set -euo pipefail
          sudo mkdir -p "/opt/${STACK}"
          sudo chown -R "${USER}:${USER}" "/opt/${STACK}"
          cd "/opt/${STACK}"

          cat > compose.yaml << COMPOSEEOF
          x-deploy-base: &deploy_base
            restart_policy:
              condition: on-failure
              delay: 5s
              max_attempts: 3
            update_config:
              parallelism: 1
              delay: 10s
              order: start-first
            rollback_config:
              parallelism: 1
              delay: 10s

          x-healthcheck: &healthcheck
            test: ['CMD', 'curl', '-f', 'http://localhost:8080/']
            interval: 30s
            timeout: 10s
            retries: 3
            start_period: 40s

          services:
            app:
              image: ${IMAGE_TAG}
              env_file:
                - /etc/fluxer/fluxer.env
              environment:
                FLUXER_API_PUBLIC_ENDPOINT: ${API_PUBLIC_ENDPOINT}
                FLUXER_APP_ENDPOINT: ${APP_ENDPOINT}
                FLUXER_MEDIA_ENDPOINT: https://fluxerusercontent.com
                FLUXER_CDN_ENDPOINT: https://fluxerstatic.com
                FLUXER_ADMIN_ENDPOINT: ${ADMIN_ENDPOINT}
                FLUXER_PATH_ADMIN: /
                APP_MODE: admin
                FLUXER_ADMIN_PORT: 8080
                ADMIN_OAUTH2_REDIRECT_URI: ${ADMIN_REDIRECT_URI}
                ADMIN_OAUTH2_CLIENT_ID: 1440355698178071552
                ADMIN_OAUTH2_AUTO_CREATE: "false"
                FLUXER_METRICS_HOST: fluxer-metrics_app:8080
              deploy:
                <<: *deploy_base
                replicas: ${REPLICAS}
                labels:
                  - "caddy=${CADDY_DOMAIN}"
                  - 'caddy.reverse_proxy={{upstreams 8080}}'
                  - 'caddy.header.X-Robots-Tag="noindex, nofollow, nosnippet, noimageindex"'
                  - 'caddy.header.Strict-Transport-Security="max-age=31536000; includeSubDomains; preload"'
                  - 'caddy.header.X-Xss-Protection="1; mode=block"'
                  - 'caddy.header.X-Content-Type-Options=nosniff'
                  - 'caddy.header.Referrer-Policy=strict-origin-when-cross-origin'
                  - 'caddy.header.X-Frame-Options=DENY'
              networks: [fluxer-shared]
              healthcheck: *healthcheck

          networks:
            fluxer-shared:
              external: true
          COMPOSEEOF

          docker stack deploy \
            --with-registry-auth \
            --detach=false \
            --resolve-image never \
            -c compose.yaml \
            "${STACK}"
          EOF
