# .github/workflows/ci.yml
name: CI

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout (with submodules)
      uses: actions/checkout@v4
      with:
          submodules: recursive
          fetch-depth: 0

    - name: Install Rust
      uses: dtolnay/rust-toolchain@stable
      with:
          components: rustfmt, clippy

    - name: Cache Rust toolchain
      uses: actions/cache@v4
      with:
        path: |
          ~/.rustup/toolchains
          ~/.rustup/update-hashes
          ~/.rustup/settings.toml
        key: ${{ runner.os }}-rustup-${{ hashFiles('rust-toolchain.toml') }}
        restore-keys: |
          ${{ runner.os }}-rustup-

    - name: Cache cargo registry and index
      uses: actions/cache@v4
      with:
        path: |
          ~/.cargo/registry/index
          ~/.cargo/registry/cache
          ~/.cargo/git/db
        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
        restore-keys: |
          ${{ runner.os }}-cargo-registry-

    - name: Cache target directory
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ runner.os }}-target-${{ hashFiles('**/Cargo.lock') }}-${{ hashFiles('**/*.rs') }}
        restore-keys: |
          ${{ runner.os }}-target-${{ hashFiles('**/Cargo.lock') }}-
          ${{ runner.os }}-target-

    - name: Setup Node.js (LTS)
      uses: actions/setup-node@v4
      with:
          node-version: 20
          cache: npm
          cache-dependency-path: ui/package-lock.json

    - name: Cache Node.js modules
      uses: actions/cache@v4
      with:
        path: |
          ui/node_modules
          ~/.npm
        key: ${{ runner.os }}-node-${{ hashFiles('ui/package-lock.json') }}
        restore-keys: |
          ${{ runner.os }}-node-

    - name: Cache Rust build artifacts
      uses: actions/cache@v4
      with:
        path: |
          target/debug/deps
          target/debug/build
          target/debug/.fingerprint
        key: ${{ runner.os }}-rust-build-${{ hashFiles('**/Cargo.lock') }}-${{ hashFiles('**/*.rs') }}
        restore-keys: |
          ${{ runner.os }}-rust-build-${{ hashFiles('**/Cargo.lock') }}-
          ${{ runner.os }}-rust-build-

    - name: Install UI deps
      working-directory: ui
      run: |
          if [ -f package-lock.json ]; then
            npm ci
          else
            npm install
          fi

    - name: Build
      run: cargo build --verbose

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

    - name: Lint (clippy)
      run: cargo clippy -- -D warnings

    - name: Format check
      run: cargo fmt -- --check