# Azure DevOps Pipeline for C++ Linter Template
trigger:
  branches:
    include:
    - main
    - develop

pr:
  branches:
    include:
    - main
    - develop

pool:
  vmImage: 'ubuntu-latest'

variables:
  buildConfiguration: 'Debug'

stages:
- stage: LintAndBuild
  displayName: 'Lint and Build'
  jobs:
  - job: StaticAnalysis
    displayName: 'Static Analysis with clang-tidy'
    steps:
    - task: Bash@3
      displayName: 'Install Dependencies'
      inputs:
        targetType: 'inline'
        script: |
          sudo apt-get update
          sudo apt-get install -y clang-tidy clang-format cmake build-essential
          clang-tidy --version
          cmake --version
          
    - task: Bash@3
      displayName: 'Check Code Format'
      inputs:
        targetType: 'inline'
        script: |
          echo "Checking code format..."
          find src tests -name "*.cpp" -o -name "*.h" | xargs clang-format --dry-run --Werror
          
    - task: Bash@3
      displayName: 'Configure build (export compile_commands)'
      inputs:
        targetType: 'inline'
        script: |
          echo "Configuring CMake to export compile_commands.json..."
          mkdir -p build
          cd build
          cmake .. -DCMAKE_BUILD_TYPE=${{ variables.buildConfiguration }} -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
          ls -la
          
    - task: Bash@3
      displayName: 'Run clang-tidy on all files (advisory)'
      inputs:
        targetType: 'inline'
        script: |
          echo "Running clang-tidy (Phase 1: advisory only)..."
          FILES=$(find src tests -type f \( -name "*.cpp" -o -name "*.cxx" -o -name "*.cc" -o -name "*.c++" -o -name "*.h" -o -name "*.hpp" -o -name "*.hxx" \))
          if [ -n "$FILES" ]; then
            echo "$FILES" | xargs -r clang-tidy -p build --config-file=.clang-tidy || true
          fi
          echo "Linter completed. Review warnings above."
          
    - task: Bash@3
      displayName: 'Build Project'
      inputs:
        targetType: 'inline'
        script: |
          cd build
          cmake .. -DCMAKE_BUILD_TYPE=${{ variables.buildConfiguration }}
          make -j$(nproc)
          
    - task: Bash@3
      displayName: 'Run Tests'
      inputs:
        targetType: 'inline'
        script: |
          cd build
          ./tests
          ./main

  - job: PRAnalysis
    displayName: 'PR Changed Files Analysis'
    condition: eq(variables['Build.Reason'], 'PullRequest')
    steps:
    - task: Bash@3
      displayName: 'Install Dependencies'
      inputs:
        targetType: 'inline'
        script: |
          sudo apt-get update
          sudo apt-get install -y clang-tidy cmake build-essential
          cmake --version
          
    - task: Bash@3
      displayName: 'Configure build (export compile_commands)'
      inputs:
        targetType: 'inline'
        script: |
          echo "Configuring CMake to export compile_commands.json for PR analysis..."
          mkdir -p build
          cd build
          cmake .. -DCMAKE_BUILD_TYPE=${{ variables.buildConfiguration }} -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
    - task: Bash@3
      displayName: 'Analyze Changed Files Only'
      inputs:
        targetType: 'inline'
        script: |
          echo "Analyzing only changed files in PR..."
          
          # 取得變更的檔案
          git fetch origin $(System.PullRequest.TargetBranch)
          CHANGED_FILES=$(git diff origin/$(System.PullRequest.TargetBranch)...HEAD --name-only | grep -E '\.(cpp|cxx|cc|c\+\+|h|hpp|hxx)$' || true)
          
          if [ -z "$CHANGED_FILES" ]; then
            echo "No C++ files changed in this PR"
            exit 0
          fi
          
          echo "Changed C++ files:"
          echo "$CHANGED_FILES"
          
          echo "Running clang-tidy on changed files (advisory)..."
          echo "$CHANGED_FILES" | xargs -r clang-tidy -p build --config-file=.clang-tidy || true