name: CI

on:
  push:
    branches: [dev, testing, "temp/merge-*"]
    paths-ignore:
      - "**/*.md"
      - "docs/**"

jobs:
  lint:
    name: Lint (ruff)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
      - run: pip install ruff
      - run: ruff check .

  bandit:
    name: SAST (bandit)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
      - run: pip install bandit
      - run: bandit -r decnet/ -ll -x decnet/services/registry.py -x decnet/templates/

  pip-audit:
    name: Dependency audit (pip-audit)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
      - run: pip install pip-audit
      - run: pip install -e .[dev]
      - run: pip-audit --skip-editable --ignore-vuln CVE-2025-65896

  test-standard:
    name: Test (Standard)
    runs-on: ubuntu-latest
    needs: [lint, bandit, pip-audit]
    strategy:
      matrix:
        python-version: ["3.11"]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - run: pip install -e .[dev]
      - run: pytest

  test-live:
    name: Test (Live)
    runs-on: ubuntu-latest
    needs: [test-standard]
    strategy:
      matrix:
        python-version: ["3.11"]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - run: pip install -e .[dev]
      - run: pytest -m live

  test-fuzz:
    name: Test (Fuzz)
    runs-on: ubuntu-latest
    needs: [test-live]
    strategy:
      matrix:
        python-version: ["3.11"]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - run: pip install -e .[dev]
      - run: pytest -m fuzz

  merge-to-testing:
    name: Merge dev → testing
    runs-on: ubuntu-latest
    needs: [test-standard, test-live, test-fuzz]
    if: github.ref == 'refs/heads/dev'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.DECNET_PR_TOKEN }}
      - name: Configure git
        run: |
          git config user.name "DECNET CI"
          git config user.email "ci@decnet.local"
      - name: Merge dev into testing
        run: |
          git fetch origin testing
          git checkout testing
          git merge origin/dev --no-ff -m "ci: auto-merge dev → testing [skip ci]"
          git push origin testing

  prepare-merge-to-main:
    name: Prepare Merge to Main
    runs-on: ubuntu-latest
    needs: [test-standard, test-live, test-fuzz]
    if: github.ref == 'refs/heads/testing'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.DECNET_PR_TOKEN }}
      - name: Configure git
        run: |
          git config user.name "DECNET CI"
          git config user.email "ci@decnet.local"
      - name: Create temp branch and sync with main
        run: |
          git fetch origin main
          git checkout -b temp/merge-testing-to-main
          echo "--- Switched to temp branch, merging main into it ---"
          git merge origin/main --no-edit || { echo "CONFLICT: Manual resolution required"; exit 1; }
          git push origin temp/merge-testing-to-main --force

  finalize-merge-to-main:
    name: Finalize Merge to Main
    runs-on: ubuntu-latest
    needs: [test-standard, test-live, test-fuzz]
    if: startsWith(github.ref, 'refs/heads/temp/merge-')
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.DECNET_PR_TOKEN }}
      - name: Configure git
        run: |
          git config user.name "DECNET CI"
          git config user.email "ci@decnet.local"
      - name: Merge RC into main
        run: |
          git fetch origin main
          git checkout main
          git merge ${{ github.ref }} --no-ff -m "ci: auto-merge testing → main"
          git push origin main
          echo "--- Cleaning up temp branch ---"
          git push origin --delete ${{ github.ref_name }}