name: MCP Server Tests

on:
  push:
    branches: [ main ]
    paths:
      - 'src/local_deep_research/mcp/**'
      - 'tests/mcp/**'
      - 'scripts/mcp_smoke_test.sh'
      - '.github/workflows/mcp-tests.yml'
  pull_request:
    branches: [ main ]
    paths:
      - 'src/local_deep_research/mcp/**'
      - 'tests/mcp/**'
      - 'scripts/mcp_smoke_test.sh'
      - '.github/workflows/mcp-tests.yml'
  workflow_dispatch:

# No concurrency group — intentionally omitted.
# Previous attempt (#3554, reverted #3599) used cancel-in-progress which
# killed in-progress PR runs before they produced useful results.
# Future iteration could safely add concurrency for scheduled/push-only
# triggers (where head_ref is empty and runs get unique groups).

permissions:
  contents: read

jobs:
  mcp-tests:
    name: MCP Server Tests
    runs-on: ubuntu-latest
    timeout-minutes: 15

    steps:
      - name: Harden the runner (Audit all outbound calls)
        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
        with:
          egress-policy: audit

      - name: Checkout code
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false

      - name: Set up Python
        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
        with:
          python-version: '3.12'

      - name: Install dependencies
        run: |
          python -m pip install pip==25.0
          pip install pdm==2.26.2
          pdm install --dev --no-editable -G mcp

      - name: Check if MCP server module exists
        id: check-mcp
        run: |
          if [ -f "src/local_deep_research/mcp/server.py" ]; then
            echo "mcp_exists=true" >> "$GITHUB_OUTPUT"
            echo "MCP server module found, will run tests"
          else
            echo "mcp_exists=false" >> "$GITHUB_OUTPUT"
            echo "MCP server module not found (feature not yet merged), skipping tests"
          fi

      - name: Run MCP smoke tests
        if: steps.check-mcp.outputs.mcp_exists == 'true'
        run: pdm run bash scripts/mcp_smoke_test.sh

      - name: Run MCP unit tests
        if: steps.check-mcp.outputs.mcp_exists == 'true'
        run: |
          pdm run pytest tests/mcp/ -v --tb=short -n auto
        env:
          LDR_TESTING_WITH_MOCKS: "true"

      - name: Skip notice
        if: steps.check-mcp.outputs.mcp_exists != 'true'
        run: |
          echo "::notice::MCP server module not yet implemented. Tests will run once feature/mcp-server is merged."

      - name: Generate test summary
        if: always()
        env:
          MCP_EXISTS: ${{ steps.check-mcp.outputs.mcp_exists }}
        run: |
          {
            echo "## MCP Server Test Summary"
            echo ""
            if [ "$MCP_EXISTS" != "true" ]; then
              echo "### ⏭️ Tests Skipped"
              echo ""
              echo "MCP server module (\`src/local_deep_research/mcp/server.py\`) not yet implemented."
              echo "Tests will run automatically once the MCP feature branch is merged."
            else
              echo "### What was tested:"
              echo "- 🔌 MCP server module loading"
              echo "- 🔧 Discovery tools (list_strategies, list_search_engines, get_configuration)"
              echo "- 🧪 Unit tests for all MCP tools"
              echo "- 🚀 Server startup verification"
              echo ""
              echo "### MCP Tools Tested:"
              echo "| Tool | Description |"
              echo "|------|-------------|"
              echo "| \`quick_research\` | Fast research summary (1-5 min) |"
              echo "| \`detailed_research\` | Comprehensive analysis (5-15 min) |"
              echo "| \`generate_report\` | Full markdown report (10-30 min) |"
              echo "| \`analyze_documents\` | Search local collections |"
              echo "| \`list_search_engines\` | List available search engines |"
              echo "| \`list_strategies\` | List research strategies |"
              echo "| \`get_configuration\` | Get current config |"
            fi
          } >> "$GITHUB_STEP_SUMMARY"