name: Examples - Backward Compatibility
permissions:
  contents: read
on:
  schedule:
    # Every day at 6 AM UTC+8
    - cron: '0 22 * * *'

  workflow_dispatch:

  repository_dispatch:
    types: [ci-compat, ci-all]

run-name: >-
  ${{ github.event_name == 'repository_dispatch'
      && format(
        'Backward Compatibility - PR #{0} - {1} - {2}',
        github.event.client_payload.pull_number,
        github.event.client_payload.ci_label,
        github.event.client_payload.correlation_id
      )
      || format('Backward Compatibility - {0}', github.event_name) }}

jobs:
  backward-compatibility:
    if: >
      github.event_name != 'repository_dispatch' ||
      github.event.action == 'ci-compat' ||
      github.event.action == 'ci-all'
    name: Backward Compatibility (Python ${{ matrix.python-version }}, ${{ matrix.setup-script }})
    runs-on: [self-hosted, 1ES.Pool=agl-runner-gpu]
    timeout-minutes: 30
    strategy:
      matrix:
        include:
        - python-version: '3.10'
          setup-script: 'legacy'
        - python-version: '3.12'
          setup-script: 'stable'
      fail-fast: false
    steps:
      - name: Check GPU status
        run: nvidia-smi
      - name: Check disk space
        run: df -h
      - uses: actions/checkout@v6
        with:
          ref: ${{ github.event_name == 'repository_dispatch' && github.event.client_payload.pr_ref || (github.event.pull_request.number && format('refs/pull/{0}/merge', github.event.pull_request.number)) || github.ref }}
      - uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
          python-version: ${{ matrix.python-version }}
      - name: Sync dependencies
        run: |
          uv sync --frozen --no-default-groups --extra apo --extra verl \
            --group dev --group experiment --group agents --group torch-gpu-${{ matrix.setup-script }}
      - name: Override VERL (stable)
        run: |
          uv pip install verl==0.5.0 vllm==0.10.2
        if: matrix.setup-script == 'stable'
      - name: Freeze dependencies
        run: |
          set -ex
          uv pip freeze | tee requirements-freeze.txt
          echo "UV_LOCKED=1" >> $GITHUB_ENV
          echo "UV_NO_SYNC=1" >> $GITHUB_ENV
      - name: Upload dependencies artifact
        uses: actions/upload-artifact@v6
        with:
          name: dependencies-backward-compatibility-${{ matrix.python-version }}-${{ matrix.setup-script }}
          path: requirements-freeze.txt
          compression-level: 0

      - name: Launch LiteLLM Proxy
        run: |
          ./scripts/litellm_run.sh
        env:
          AZURE_API_BASE: ${{ secrets.AZURE_GROUP_SUBSCRIPTION_API_BASE }}
          AZURE_API_KEY: ${{ secrets.AZURE_GROUP_SUBSCRIPTION_API_KEY }}
      - name: Prepare Calc-X dataset
        run: |
          set -ex
          cd examples/calc_x
          uv run gdown --fuzzy https://drive.google.com/file/d/1FQMyKLLd6hP9dw9rfZn1EZOWNvKaDsqw/view
          unzip calc-x-data.zip -d data
          rm calc-x-data.zip

      - name: APO example (legacy client-server style)
        run: |
          set -ex
          cd examples/apo
          uv run legacy_apo_client.py &
          sleep 3  # Wait for the client to be up
          uv run legacy_apo_server.py
          pkill -f legacy_apo_client.py && echo "SIGTERM sent to legacy_apo_client.py" || echo "No legacy_apo_client.py process found"
          while pgrep -f legacy_apo_client.py; do
            echo "Waiting for legacy_apo_client.py to finish..."
            sleep 5
          done
          echo "legacy_apo_client.py has finished."
          sleep 10
        env:
          OPENAI_API_BASE: http://localhost:12306/
          OPENAI_API_KEY: dummy

      - name: Calc-X MCP sanity check
        run: |
          set -ex
          cd examples/calc_x
          uv run tests/test_mcp_calculator.py
        env:
          OPENAI_API_BASE: http://localhost:12306/
          OPENAI_API_KEY: dummy
      - name: Calc-X sanity check
        run: |
          set -ex
          cd examples/calc_x
          uv run legacy_calc_agent_debug.py
        env:
          OPENAI_BASE_URL: http://localhost:12306/
          OPENAI_API_KEY: dummy

      - name: Calc-X training (legacy client-server style)
        run: |
          set -ex
          source .venv/bin/activate
          cd examples/calc_x
          ../../scripts/restart_ray.sh
          sleep 5
          PYTHONUNBUFFERED=1 python legacy_calc_agent.py &
          bash legacy_train.sh
          pkill -f legacy_calc_agent.py && echo "SIGTERM sent to legacy_calc_agent.py" || echo "No legacy_calc_agent.py process found"
          while pgrep -f legacy_calc_agent.py; do
            echo "Waiting for legacy_calc_agent.py to finish..."
            sleep 5
          done
          echo "legacy_calc_agent.py has finished."
          sleep 10
        shell: bash
        env:
          WANDB_BASE_URL: ${{ secrets.MSR_WANDB_BASE_URL }}
          WANDB_API_KEY: ${{ secrets.MSR_WANDB_API_KEY }}
        id: calc_x_train

      - name: Validate Calc-X training
        run: |
          set -ex
          uv run scripts/validate_example_wandb.py ${{ steps.calc_x_train.outputs.project_name }} ${{ steps.calc_x_train.outputs.run_name }}
        env:
          WANDB_BASE_URL: ${{ secrets.MSR_WANDB_BASE_URL }}
          WANDB_API_KEY: ${{ secrets.MSR_WANDB_API_KEY }}