name: Provision Coder Templates

# Keeps Coder templates in sync with templates/*/ in this repo:
#   - every push to main pushes a new version of each templates/<env>/ dir
#     (coder templates push creates it if it doesn't exist yet, so adding a
#     new templates/<env>/ directory is enough to provision a new one)
#   - if a templates/<env>/ directory is removed on main, its template is
#     deleted from Coder. `coder templates delete` refuses to delete a
#     template that still has active workspaces, so this can't silently
#     orphan running workspaces - it just fails loudly and needs a human.
#
# Requires two repo/org secrets (Settings > Actions > Secrets):
#   CODER_URL             e.g. https://code.octoturge.com
#   CODER_SESSION_TOKEN   a token from `coder tokens create`, ideally under a
#                          dedicated service account rather than a personal one

on:
  push:
    branches: [main]
    paths:
      - "templates/**"
      - ".gitea/workflows/coder-templates.yml"
  workflow_dispatch: {}

jobs:
  provision:
    runs-on: ubuntu-latest
    env:
      CODER_URL: ${{ secrets.CODER_URL }}
      CODER_SESSION_TOKEN: ${{ secrets.CODER_SESSION_TOKEN }}
    steps:
      - name: Checkout (full history, needed to detect removed templates)
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install coder CLI
        run: |
          set -e
          curl -fsSL https://coder.com/install.sh | sh
          coder version

      - name: Push (create or update) every template
        run: |
          set -e
          for dir in templates/*/; do
            name="profiles-$(basename "$dir")"
            echo "::group::Pushing $name from $dir"
            coder templates push "$name" -d "$dir" --yes \
              -m "auto-provisioned from ${GITHUB_SHA:0:12}"
            echo "::endgroup::"
          done

      - name: Delete templates whose directory was removed
        if: github.event_name == 'push'
        run: |
          set -e
          PREV_SHA="$(git rev-parse HEAD~1 2>/dev/null || true)"
          if [ -z "$PREV_SHA" ]; then
            echo "No previous commit on this branch (first push), nothing to diff. Skipping."
            exit 0
          fi

          OLD_DIRS="$(git ls-tree -d --name-only "$PREV_SHA" -- 'templates/*' 2>/dev/null | xargs -n1 basename 2>/dev/null || true)"
          if [ -z "$OLD_DIRS" ]; then
            echo "No templates/ directory at $PREV_SHA, nothing to diff. Skipping."
            exit 0
          fi

          for old in $OLD_DIRS; do
            if [ ! -d "templates/$old" ]; then
              name="profiles-$old"
              echo "::group::Deleting $name (templates/$old was removed)"
              coder templates delete "$name" --yes \
                || echo "::warning::Failed to delete $name - check for active workspaces still using it."
              echo "::endgroup::"
            fi
          done