name: Mirror to Gitea

on:
  push:
    branches:
      - main
  workflow_dispatch:

concurrency:
  group: mirror-to-gitea
  cancel-in-progress: false

permissions:
  contents: read

jobs:
  mirror:
    runs-on: ubuntu-latest
    timeout-minutes: 20

    steps:
      - name: Checkout GitHub repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Configure Git identity
        run: |
          git config user.name "github-actions"
          git config user.email "github-actions@github.com"

      - name: Remove GitHub Actions workflows from Gitea mirror
        run: |
          set -euo pipefail

          # Gitea.com supports GitHub Actions-compatible workflows and may try
          # to run .github/workflows/*.yml from the mirrored repository.
          # This repository is only a mirror, so workflows must stay only on GitHub.
          git rm -rf .github/workflows 2>/dev/null || true

          if ! git diff --cached --quiet; then
            git commit -m "Remove GitHub Actions workflows from Gitea mirror"
          else
            echo "No workflow files to remove for Gitea mirror"
          fi

      - name: Push main branch to Gitea
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_MIRROR_TOKEN }}
        run: |
          set -euo pipefail

          git remote remove gitea 2>/dev/null || true
          git remote add gitea "https://igareck:${GITEA_TOKEN}@gitea.com/igareck/vpn-configs-for-russia.git"

          for attempt in 1 2 3 4 5; do
            echo "Gitea push attempt $attempt/5"

            if git push gitea HEAD:main --force; then
              echo "Gitea push successful"
              exit 0
            fi

            sleep_time=$((attempt * 45))
            echo "Gitea push failed. Sleeping ${sleep_time}s before retry..."
            sleep "$sleep_time"
          done

          echo "Gitea push failed after all retries"
          exit 1