name: CI

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

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1

jobs:
  # ──────────────────────────────────────────────────────────────────────────
  # Build + test (default features)
  # ──────────────────────────────────────────────────────────────────────────
  test:
    name: Test (stable)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

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

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

      - name: Build workspace
        run: cargo build --workspace

      - name: Run tests (default features)
        run: cargo test --workspace

      - name: Run tests (simd-cdc feature)
        run: cargo test --workspace --features clawsync-core/simd-cdc

  # ──────────────────────────────────────────────────────────────────────────
  # Clippy + rustfmt
  # ──────────────────────────────────────────────────────────────────────────
  lint:
    name: Clippy + fmt
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

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

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

      - name: Clippy (deny warnings)
        run: cargo clippy --workspace -- -D warnings

      - name: Rustfmt check
        run: cargo fmt --all -- --check

  # ──────────────────────────────────────────────────────────────────────────
  # MSRV check (Rust 1.85 — workspace rust-version)
  # ──────────────────────────────────────────────────────────────────────────
  msrv:
    name: MSRV (1.85)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust 1.85
        uses: dtolnay/rust-toolchain@1.85

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

      - name: Build on MSRV
        run: cargo build --workspace

      - name: Test on MSRV
        run: cargo test --workspace

  # ──────────────────────────────────────────────────────────────────────────
  # Publish dry-run (verifies crates are publishable once deps are on crates.io)
  # ──────────────────────────────────────────────────────────────────────────
  publish-dry-run:
    name: Publish dry-run (clawsync-core)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust stable
        uses: dtolnay/rust-toolchain@stable

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

      - name: Dry-run publish clawsync-core
        run: cargo publish --dry-run -p clawsync-core