name: Build & Release Pack

on:
  push:
    branches: [main]
    tags: ['v*']

jobs:
  build:
    runs-on: docker
    steps:
      - name: Environment check
        run: |
          echo "cwd: $(pwd)"
          echo "GITHUB_WORKSPACE: ${GITHUB_WORKSPACE}"
          python3 --version; git --version 2>/dev/null || echo "git: MISSING"
          curl --version 2>/dev/null | head -1 || echo "curl: MISSING"
          tar --version 2>/dev/null | head -1 || echo "tar: MISSING"

      - name: Fetch sources
        run: |
          if command -v git >/dev/null 2>&1; then
            echo "git present -> cloning"
            git clone --branch "${GITHUB_REF_NAME}" --depth 1 "https://x-access-token:${GITHUB_TOKEN}@git.mithraic.cloud/ad3laid3/FKRPG.git" "${GITHUB_WORKSPACE}"
          else
            echo "git missing -> downloading archive via API"
            python3 - <<'PY'
            import urllib.request, tarfile, io, os, shutil
            ws = os.environ.get('GITHUB_WORKSPACE') or os.getcwd()
            sha = os.environ['GITHUB_SHA']
            token = os.environ.get('GITHUB_TOKEN', '')
            url = f"https://git.mithraic.cloud/api/v1/repos/ad3laid3/FKRPG/archive/{sha}.tar.gz"
            req = urllib.request.Request(url, headers={"Authorization": f"token {token}"})
            raw = urllib.request.urlopen(req, timeout=120).read()
            os.makedirs('/tmp/fkrpg_src', exist_ok=True)
            with tarfile.open(fileobj=io.BytesIO(raw)) as tf:
                tf.extractall('/tmp/fkrpg_src')
            src = os.path.join('/tmp/fkrpg_src', os.listdir('/tmp/fkrpg_src')[0])
            for name in os.listdir(src):
                dst = os.path.join(ws, name)
                if os.path.exists(dst):
                    shutil.rmtree(dst) if os.path.isdir(dst) else os.remove(dst)
                shutil.move(os.path.join(src, name), dst)
            print("Extracted sources into", ws)
            PY
          fi

      - name: Refresh index
        working-directory: client_pack
        run: ../tools/packwiz refresh

      - name: Integrity check
        working-directory: client_pack
        run: python3 ../tools/validate_pack.py . integrity

      - name: Sanity grep download URLs
        working-directory: client_pack
        run: python3 ../tools/validate_pack.py . sanity

      - name: Export client Modrinth pack
        working-directory: client_pack
        run: ../tools/packwiz modrinth export -o ../FKRPG-${GITHUB_REF_NAME}.mrpack --restrictDomains=false

      - name: Refresh server index
        working-directory: server_pack
        run: ../tools/packwiz refresh

      - name: Integrity check (server)
        working-directory: server_pack
        run: python3 ../tools/validate_pack.py . integrity

      - name: Sanity grep download URLs (server)
        working-directory: server_pack
        run: python3 ../tools/validate_pack.py . sanity

      - name: Export server Modrinth pack
        working-directory: server_pack
        run: ../tools/packwiz modrinth export -o ../FKRPG-SERVER-${GITHUB_REF_NAME}.mrpack --restrictDomains=false

      - name: Release
        if: startsWith(github.ref, 'refs/tags/v')
        run: |
          set -e
          TAG="${GITHUB_REF_NAME}"
          API="https://git.mithraic.cloud/api/v1/repos/ad3laid3/FKRPG/releases"
          AUTH="Authorization: token ${{ secrets.GITHUB_TOKEN }}"
          RELEASE_JSON=$(curl -sS -X POST "$API" \
            -H "$AUTH" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"$TAG\",\"name\":\"FKRPG $TAG\",\"body\":\"Download the .mrpack and import it into Prism Launcher (File > Import Instance > select the file). All mods are bundled or auto-fetched. Use the SERVER pack on the server side. Worldgen tuned for realistic+expansive RPG (Tectonic+Terralith+Continents).\"}")
          RELEASE_ID=$(printf '%s' "$RELEASE_JSON" | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")
          for mr in "FKRPG-${TAG}.mrpack" "FKRPG-SERVER-${TAG}.mrpack"; do
            curl -sS -X POST "$API/$RELEASE_ID/assets?name=${mr}" \
              -H "$AUTH" \
              -F "attachment=@${mr}"
          done
          echo "Uploaded FKRPG-${TAG}.mrpack and FKRPG-SERVER-${TAG}.mrpack"