# BlueCap Strategies CI — Gitea Actions (ADR-0007)
#
# Pipeline: install → build (typecheck) → seo:lint → e2e → build & push image to Gitea Packages
# → bump the image tag in k8s/ and commit back to main. ArgoCD then reconciles k3s.
#
# PREREQUISITES (homelab, verify before the first run — see docs/gitops-deployment-strategy.md):
#   1. Docker must be usable from the job container. The runner mounts /var/run/docker.sock; if
#      jobs can't see it, enable socket passthrough in act_runner config or switch this to kaniko.
#   2. The RUNNER HOST's dockerd must treat 10.66.15.22:3000 as an insecure (HTTP) registry
#      ("insecure-registries": ["10.66.15.22:3000"] in /etc/docker/daemon.json).
#   3. K3S must trust the same HTTP registry — add a registries.yaml entry (k3s_registry_mirrors)
#      for 10.66.15.22:3000, then restart k3s, or the pods can't pull the image.
#   4. The Gitea container package should be PUBLIC (simplest). If PRIVATE, add an imagePullSecret
#      (see k8s/deployment.yaml) and grant the run token package:write.
#   5. secrets.GITEA_TOKEN (auto-injected per run) needs write access to this repo (tag-bump commit)
#      and the package registry.

name: CI
on:
  push:
    branches: [main]
    # Don't re-trigger on the CI tag-bump commit (touches k8s/) or docs-only changes.
    paths-ignore:
      - 'k8s/**'
      - 'docs/**'
      - 'planning/**'
      - '**/*.md'

env:
  IMAGE: 10.66.15.22:3000/bmr_bluecap/bcs-website

jobs:
  ci:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Node 22
        uses: actions/setup-node@v4
        with:
          node-version: 22

      - name: Install dependencies
        run: npm ci

      - name: Build (typecheck + astro build)
        run: npm run build

      - name: SEO lint
        run: npm run seo:lint

      - name: End-to-end tests
        run: |
          npx playwright install --with-deps chromium
          npm run test:e2e

      - name: Compute image tag
        id: tag
        run: echo "sha=$(echo ${{ github.sha }} | cut -c1-12)" >> "$GITHUB_OUTPUT"

      - name: Ensure docker + kustomize are available
        run: |
          command -v docker >/dev/null 2>&1 || { apt-get update && apt-get install -y docker.io; }
          command -v kustomize >/dev/null 2>&1 || \
            curl -sSL "https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize%2Fv5.4.3/kustomize_v5.4.3_linux_amd64.tar.gz" \
              | tar xz -C /usr/local/bin

      # CI_TOKEN: a Gitea Personal Access Token (scopes: write:package, write:repository) owned by
      # the repo owner, stored as a repo Actions secret. The auto GITEA_TOKEN lacks reliable package
      # scope on Gitea, hence a dedicated PAT for both the registry push and the tag-bump commit.
      - name: Build & push image to Gitea Packages
        run: |
          echo "${{ secrets.CI_TOKEN }}" | docker login 10.66.15.22:3000 -u "${{ github.repository_owner }}" --password-stdin
          docker build -t "$IMAGE:${{ steps.tag.outputs.sha }}" -t "$IMAGE:latest" .
          # Registry pushes can time out on a slow blob; docker push is resumable, so retry.
          push_retry() {
            for i in 1 2 3 4 5; do
              docker push "$1" && return 0
              echo "push of $1 failed (attempt $i), retrying in 10s..."
              sleep 10
            done
            return 1
          }
          push_retry "$IMAGE:${{ steps.tag.outputs.sha }}"
          push_retry "$IMAGE:latest"

      - name: Bump k8s image tag and commit back
        run: |
          git config user.name "gitea-actions[bot]"
          git config user.email "gitea-actions@bmr_bluecap"
          (cd k8s && kustomize edit set image "$IMAGE=$IMAGE:${{ steps.tag.outputs.sha }}")
          git add k8s/kustomization.yaml
          git diff --cached --quiet && { echo "no image change"; exit 0; }
          git commit -m "ci: deploy ${{ steps.tag.outputs.sha }} [skip ci]"
          git remote set-url origin "http://${{ github.repository_owner }}:${{ secrets.CI_TOKEN }}@10.66.15.22:3000/bmr_bluecap/bcs-website.git"
          git push origin HEAD:main
