name: CI

on:
  push:
    branches: [ main, dev ]
  pull_request:
    branches: [ main, dev ]

env:
  CARGO_TERM_COLOR: always

jobs:
  test:
    runs-on: ubuntu-latest
    services:
      redis:
        image: redis
        ports:
          - 6379:6379

    steps:
    - uses: actions/checkout@v2

    - name: Install Rust
      uses: actions-rs/toolchain@v1
      with:
        toolchain: stable
        override: true
        components: rustfmt, clippy

    - name: Cache dependencies
      uses: actions/cache@v3
      with:
        path: |
          ~/.cargo/registry
          ~/.cargo/git
          target
        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
        restore-keys: |
          ${{ runner.os }}-cargo-

    - name: Build with extreme memory optimization
      run: |
        # Check available memory
        echo "Available memory:"
        free -h || echo "Memory info not available"
        
        # Apply extreme memory optimizations for CI environment
        export CARGO_NET_GIT_FETCH_WITH_CLI=true
        export CARGO_NET_RETRY=2
        export CARGO_NET_TIMEOUT=30
        export CARGO_HTTP_TIMEOUT=30
        export RUSTC_FORCE_INCREMENTAL=0
        
        # Extreme memory conservation
        export CARGO_BUILD_JOBS=1
        export CARGO_TARGET_DIR=$PWD/target
        export RUSTFLAGS="-C opt-level=s -C codegen-units=1 -C panic=abort -C strip=symbols -C link-arg=-Wl,--no-keep-memory"
        
        # Clear any existing artifacts to save space
        cargo clean || true
        
        # Try building with release profile first (may use less memory)
        echo "Starting build with release optimizations..."
        cargo build --verbose --release

    - name: Install cargo-llvm-cov
      run: |
        mkdir -p $HOME/.cargo/bin
        curl -LO https://github.com/taiki-e/cargo-llvm-cov/releases/latest/download/cargo-llvm-cov-x86_64-unknown-linux-gnu.tar.gz
        tar xf cargo-llvm-cov-x86_64-unknown-linux-gnu.tar.gz
        chmod +x cargo-llvm-cov
        mv cargo-llvm-cov $HOME/.cargo/bin/
        echo "$HOME/.cargo/bin" >> $GITHUB_PATH
        rm cargo-llvm-cov-x86_64-unknown-linux-gnu.tar.gz

    - name: Run tests
      run: cargo test --verbose --tests

    - name: Generate code coverage
      run: |
        cargo llvm-cov --lcov --output-path lcov.info
        cargo llvm-cov --html

    - name: Extract Coverage Percentage
      id: coverage
      run: |
        COVERAGE=$(cargo llvm-cov --summary | grep -oP 'coverage: \K[0-9.]+%' || echo "0%")
        echo "total_coverage=$COVERAGE" >> $GITHUB_OUTPUT
        echo "Coverage: $COVERAGE"

    - name: Upload coverage HTML
      uses: actions/upload-artifact@v3
      with:
        name: code-coverage
        path: target/llvm-cov/html

    - name: Upload LCOV report
      uses: actions/upload-artifact@v3
      with:
        name: lcov-report
        path: lcov.info

  lint:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2

    - name: Install Rust
      uses: actions-rs/toolchain@v1
      with:
        toolchain: stable
        override: true
        components: rustfmt, clippy

    - name: Cache dependencies
      uses: actions/cache@v3
      with:
        path: |
          ~/.cargo/registry
          ~/.cargo/git
          target
        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
        restore-keys: |
          ${{ runner.os }}-cargo-

    - name: Check formatting
      run: cargo fmt --all -- --check

    - name: Clippy with memory optimization
      run: |
        # Apply same memory optimizations for clippy
        export CARGO_NET_GIT_FETCH_WITH_CLI=true
        export RUSTC_FORCE_INCREMENTAL=0
        # Run clippy with our allow list for collapsible_if
        cargo clippy -- -D warnings -A clippy::collapsible-if