name: sync-to-gitea

on:
  push:
    branches:
      - main

jobs:
  sync:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Push to Gitea main
        env:
          GITEA_USERNAME: Admin
          GITEA_TOKEN: ${{ secrets.GITEA_SECRET }}
          GITEA_HOST: ci.nxtgauge.com
          GITEA_OWNER: ${{ vars.GITEA_OWNER }}
        run: |
          set -euo pipefail
          echo "Syncing ${{ github.event.repository.name }}:main → Gitea main"
          echo "Commit: $(git rev-parse HEAD)"

          if [ -z "${GITEA_TOKEN:-}" ]; then
            echo "Missing GITEA_SECRET"
            exit 1
          fi

          REPO_NAME="${{ github.event.repository.name }}"
          CANDIDATE_OWNERS="${GITEA_OWNER:-} Admin ${{ github.repository_owner }}"
          TARGET_URL=""

          for owner in $CANDIDATE_OWNERS; do
            [ -n "$owner" ] || continue
            candidate_url="https://${GITEA_USERNAME}:${GITEA_TOKEN}@${GITEA_HOST}/${owner}/${REPO_NAME}.git"
            if git ls-remote "$candidate_url" >/dev/null 2>&1; then
              TARGET_URL="$candidate_url"
              echo "Using Gitea target owner: $owner"
              break
            fi
          done

          if [ -z "$TARGET_URL" ]; then
            echo "Owner guess failed; searching accessible repos via Gitea API"
            API_URL="https://${GITEA_HOST}/api/v1/repos/search?q=${REPO_NAME}&limit=100"
            API_JSON="$(curl -fsS -H "Authorization: token ${GITEA_TOKEN}" "${API_URL}" || true)"
            TARGET_FULL_NAME="$(printf '%s' "$API_JSON" | jq -r --arg repo "$REPO_NAME" '[.data[]?.full_name | select((ascii_downcase | endswith("/" + ($repo | ascii_downcase))))][0] // empty')"
            if [ -n "$TARGET_FULL_NAME" ]; then
              TARGET_URL="https://${GITEA_USERNAME}:${GITEA_TOKEN}@${GITEA_HOST}/${TARGET_FULL_NAME}.git"
            fi
            if [ -n "$TARGET_URL" ]; then
              echo "Resolved Gitea target via API"
            fi
          fi

          if [ -z "$TARGET_URL" ]; then
            echo "Could not access target repo on Gitea for owners: $CANDIDATE_OWNERS"
            exit 1
          fi

          git remote add gitea "$TARGET_URL"

          git fetch gitea main || true
          git push gitea HEAD:main --force-with-lease=refs/heads/main

          echo "Sync complete!"