name: regen

on:
  schedule:
    - cron: "0 7 * * 1"
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  regen:
    name: bump protobuf schema pin
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: bufbuild/buf-action@v1
        with:
          setup_only: true

      - name: Resolve schema commit
        id: schema
        run: |
          json=$(buf registry module commit resolve \
            buf.build/openstatus/api:main --format json)
          commit=$(jq -r '.commit' <<< "$json")
          source_url=$(jq -r '.source_control_url' <<< "$json")
          if [[ -z "$commit" || "$commit" == "null" ]]; then
            echo "::error::schema commit resolution returned empty"
            exit 1
          fi
          echo "commit=$commit" >> "$GITHUB_OUTPUT"
          echo "source_url=$source_url" >> "$GITHUB_OUTPUT"

      - name: Regenerate
        run: bash scripts/regen.sh "${{ steps.schema.outputs.commit }}"

      - name: Bump patch version
        run: |
          if git diff --quiet -- src/openstatus/_gen; then
            echo "no schema change; skipping version bump"
            exit 0
          fi
          cur=$(grep -oP '^version = "\K[^"]+' pyproject.toml)
          IFS=. read -r maj min pat <<< "$cur"
          next="$maj.$min.$((pat + 1))"
          sed -i -E "0,/^version = \"[^\"]+\"/s//version = \"$next\"/" pyproject.toml
          echo "bumped $cur -> $next"

      - name: Open PR
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.SDK_BOT_TOKEN || github.token }}
          branch: regen/${{ steps.schema.outputs.commit }}
          commit-message: "chore: bump buf schema to ${{ steps.schema.outputs.commit }}"
          title: "chore: bump buf schema to ${{ steps.schema.outputs.commit }}"
          body: |
            Automated regeneration from `buf.build/openstatus/api` schema
            commit `${{ steps.schema.outputs.commit }}`.

            Source: ${{ steps.schema.outputs.source_url }}