# Auto-PR canonical wrapper updates to consumer repos when wrappers/ changes on
# main. Maintenance automation (not artifact publishing), so it is allowed on a
# main push under the D7 trigger standard. Requires BOT_TOKEN: the gitea-bot
# org token (content+PR write to the consumer repos; never committed).
#
# Consumer drift checks run only after their sync PRs merge to main. They must
# not run on the sync PR itself, which can create recursive cross-repo checks.
name: sync-wrappers

on:
  push:
    branches: [main]
    paths:
      - 'wrappers/crucible.sh'
      - 'wrappers/crucible.ps1'

permissions: read-all

jobs:
  sync:
    runs-on: nix-docker
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

      - name: Open sync PRs to consumers
        env:
          TOKEN: ${{ secrets.BOT_TOKEN }}
          SERVER: ${{ github.server_url }}
          SRC_SHA: ${{ github.sha }}
        run: |
          nix develop --command bash -c '
            set -euo pipefail
            [ -n "${TOKEN}" ] || { echo "::error::BOT_TOKEN secret is empty — set the gitea-bot org token"; exit 1; }
            host="$(echo "$SERVER" | sed -E "s#https?://##")"
            branch="chore/sync-wrappers-$(echo "$SRC_SHA" | cut -c1-12)"
            grep -vE "^\s*#|^\s*$" wrappers/consumers.txt | while read -r target; do
              echo "== syncing $target =="
              work="$(mktemp -d)"
              git clone "https://oauth2:${TOKEN}@${host}/${target}.git" "$work"
              cp wrappers/crucible.sh wrappers/crucible.ps1 "$work"/
              ( cd "$work"
                git config user.name  "crucible-sync-bot"
                git config user.email "bot@westgate.pw"
                if git diff --quiet; then echo "no changes for $target"; exit 0; fi
                git checkout -b "$branch"
                git add crucible.sh crucible.ps1
                git commit -m "chore: sync crucible wrappers from sow-tools@${SRC_SHA}"
                git push -f origin "$branch"
                # Capture HTTP status: 201=created, 422=PR already open for this
                # branch (fine, the force-push above refreshed it). Anything else
                # (401/404/...) is a real failure — fail loud, do not swallow it.
                resp="$(mktemp)"
                code="$(curl -sS -o "$resp" -w "%{http_code}" -X POST \
                  -H "Authorization: token ${TOKEN}" -H "Content-Type: application/json" \
                  "${SERVER}/api/v1/repos/${target}/pulls" \
                  -d "{\"head\":\"${branch}\",\"base\":\"main\",\"title\":\"chore: sync crucible wrappers from sow-tools\"}")"
                case "$code" in
                  201) echo "opened sync PR for $target" ;;
                  422) echo "sync PR already open for $target; refreshed its branch" ;;
                  *)   echo "::error::PR create failed for $target (HTTP $code)"; cat "$resp"; exit 1 ;;
                esac
              )
              rm -rf "$work"
            done
          '