name: Deploy — Staging

on:
  push:
    branches:
      - staging

# Gitea Actions has no environment-level secrets (unlike GitHub Actions).
# Staging and production secrets live at repo level, distinguished by prefix.
# Production workflow uses the same names with PROD_ prefix.
# (see: troubleshooting #8 — REGISTRY must include the owner segment)
#
# Required secrets (repo → Settings → Secrets and Variables → Actions):
#   STAGING_REGISTRY                        — host:port/owner  (e.g. git.yourdomain.com:3000/myorg)
#   STAGING_REGISTRY_USER                   — Gitea username
#   STAGING_REGISTRY_TOKEN                  — Gitea personal access token (package:write scope)
#   STAGING_SSH_HOST                        — use host.containers.internal, not the external IP
#                                             (see: troubleshooting #13 — VPS firewall blocks ext IP)
#   STAGING_SSH_USER                        — SSH user on the VPS
#   STAGING_SSH_KEY                         — SSH private key (full PEM)
#   STAGING_SSH_PORT                        — (optional) defaults to 22
#   STAGING_NEXT_PUBLIC_CONVEX_URL                  — Convex deployment URL (shared)
#   STAGING_NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY        — storefront Clerk publishable key
#   STAGING_ADMIN_NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY  — admin Clerk publishable key
#   STAGING_NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME        — admin Cloudinary cloud name
#
# The Dockerfiles are expected at:
#   apps/storefront/Dockerfile
#   apps/admin/Dockerfile
# Both receive ./out as build context (turbo prune output).

jobs:
  # ── 1. CI ───────────────────────────────────────────────────────────────────

  ci:
    name: Lint, Typecheck & Test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Lint
        run: npm run lint

      - name: Typecheck
        run: npm run type-check

      - name: Test
        run: npm run test:once

  # ── 2. Build & push ─────────────────────────────────────────────────────────
  # Runs storefront and admin in parallel via matrix.
  # Each job prunes its own workspace so there is no out/ directory collision.

  build:
    name: Build & push — ${{ matrix.app }}
    needs: ci
    runs-on: ubuntu-latest
    strategy:
      matrix:
        app: [storefront, admin]

    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Prune workspace for ${{ matrix.app }}
        run: |
          npx turbo prune ${{ matrix.app }} --docker
          # turbo prune only traces npm workspace packages. The root convex/ directory
          # is not a workspace package, so it is excluded from out/full/ — causing
          # "Module not found: convex/_generated/api" at build time.
          # Copy it manually so the Dockerfile has the generated types it needs.
          cp -r convex out/full/convex

      - name: Authenticate with registry
        # docker login sends HTTPS even for HTTP-only (insecure) registries, so it
        # fails before the daemon can handle it. Pre-populating config.json bypasses
        # login entirely — docker push goes through the Podman daemon which correctly
        # uses HTTP. (see: troubleshooting #7)
        run: |
          mkdir -p ~/.docker
          AUTH=$(echo -n "${{ secrets.STAGING_REGISTRY_USER }}:${{ secrets.STAGING_REGISTRY_TOKEN }}" | base64 -w 0)
          REGISTRY_HOST=$(echo "${{ secrets.STAGING_REGISTRY }}" | cut -d'/' -f1)
          echo "{\"auths\":{\"${REGISTRY_HOST}\":{\"auth\":\"${AUTH}\"}}}" > ~/.docker/config.json

      - name: Build & push ${{ matrix.app }}
        # --push bypasses the Podman daemon and uses buildkit's internal HTTPS push,
        # which fails for HTTP-only registries. Instead:
        #   1. --load loads the image into the Podman daemon after build
        #   2. docker push goes through the daemon, which has insecure=true in
        #      registries.conf and correctly uses HTTP. (see: troubleshooting #7, #12)
        #
        # Each app has its own Clerk instance so the publishable key differs.
        # NEXT_PUBLIC_* vars must be baked in at build time — Next.js prerender
        # fails with "Missing publishableKey" if they are absent.
        # Secrets use STAGING_/PROD_ prefix in Gitea; the prefix is stripped here
        # so Dockerfiles receive the plain NEXT_PUBLIC_* names they expect.
        env:
          STOREFRONT_CLERK_KEY: ${{ secrets.STAGING_STOREFRONT_NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY }}
          ADMIN_CLERK_KEY: ${{ secrets.STAGING_ADMIN_NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY }}
          NEXT_PUBLIC_CONVEX_URL: ${{ secrets.STAGING_NEXT_PUBLIC_CONVEX_URL }}
          NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME: ${{ secrets.STAGING_NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME }}
        run: |
          SHORT_SHA="${GITHUB_SHA::7}"
          IMAGE="${{ secrets.STAGING_REGISTRY }}/${{ matrix.app }}"

          if [ "${{ matrix.app }}" = "admin" ]; then
            CLERK_KEY="$ADMIN_CLERK_KEY"
            docker build \
              -f apps/admin/Dockerfile \
              --build-arg NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY="$CLERK_KEY" \
              --build-arg NEXT_PUBLIC_CONVEX_URL="$NEXT_PUBLIC_CONVEX_URL" \
              --build-arg NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME="$NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME" \
              --load \
              -t "${IMAGE}:staging" \
              ./out
          else
            CLERK_KEY="$STOREFRONT_CLERK_KEY"
            docker build \
              -f apps/storefront/Dockerfile \
              --build-arg NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY="$CLERK_KEY" \
              --build-arg NEXT_PUBLIC_CONVEX_URL="$NEXT_PUBLIC_CONVEX_URL" \
              --load \
              -t "${IMAGE}:staging" \
              ./out
          fi

          docker tag "${IMAGE}:staging" "${IMAGE}:sha-${SHORT_SHA}"
          docker push "${IMAGE}:staging"
          docker push "${IMAGE}:sha-${SHORT_SHA}"

  # ── 3. Deploy ───────────────────────────────────────────────────────────────

  deploy:
    name: Deploy to staging VPS
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Write SSH key
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.STAGING_SSH_KEY }}" > ~/.ssh/staging
          chmod 600 ~/.ssh/staging

      - name: Pull & restart containers on VPS
        env:
          REGISTRY: ${{ secrets.STAGING_REGISTRY }}
          REGISTRY_USER: ${{ secrets.STAGING_REGISTRY_USER }}
          REGISTRY_TOKEN: ${{ secrets.STAGING_REGISTRY_TOKEN }}
          SSH_HOST: ${{ secrets.STAGING_SSH_HOST }}
          SSH_USER: ${{ secrets.STAGING_SSH_USER }}
          SSH_PORT: ${{ secrets.STAGING_SSH_PORT }}
        run: |
          # Auth key is the hostname only — strip the /owner path
          REGISTRY_HOST=$(echo "$REGISTRY" | cut -d'/' -f1)

          # StrictHostKeyChecking=accept-new trusts on first connect but rejects
          # changed keys on subsequent runs — safer than no-verify
          ssh -i ~/.ssh/staging \
              -p "${SSH_PORT:-22}" \
              -o StrictHostKeyChecking=accept-new \
              "${SSH_USER}@${SSH_HOST}" bash -s << EOF
          set -euo pipefail

          # Registry uses HTTP — --tls-verify=false required for podman login & pull
          # (see: troubleshooting #12)
          echo "${REGISTRY_TOKEN}" \
            | podman login "${REGISTRY_HOST}" \
                -u "${REGISTRY_USER}" --password-stdin --tls-verify=false

          podman pull --tls-verify=false "${REGISTRY}/storefront:staging"
          podman pull --tls-verify=false "${REGISTRY}/admin:staging"

          cd /opt/staging
          podman compose up -d --remove-orphans

          # Remove dangling images from previous deploys
          podman image prune -f
          EOF
