name: CI checks

on:
  pull_request:
  push:
    branches: main

jobs:
  test:
    name: >
      Test${{
      matrix.state != 'NOT_A_PUZZLE' && format(' {0}', matrix.state) || ''
      }} on ${{ matrix.target }}
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.state != 'NOT_A_PUZZLE' }}
    strategy:
      matrix:
        target:
          - Linux
          - macOS
          - Windows
        state:
          - NOT_A_PUZZLE
          - Orchard
          - NU6

        include:
          - target: Linux
            os: ubuntu-latest-8cores
          - target: macOS
            os: macOS-latest
          - target: Windows
            os: windows-latest-8cores

          - state: Orchard
            extra_flags: orchard
          - state: NU6
            rustflags: '--cfg zcash_unstable="nu6"'

        exclude:
          - target: macOS
            state: NU6

    env:
      RUSTFLAGS: ${{ matrix.rustflags }}
      RUSTDOCFLAGS: ${{ matrix.rustflags }}

    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
        with:
          extra-features: ${{ matrix.state != 'NOT_A_PUZZLE' && matrix.extra_flags || '' }}
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-msrv-${{ hashFiles('**/Cargo.lock') }}
      - name: Run tests
        run: >
          cargo test
          --release
          --workspace
          ${{ steps.prepare.outputs.feature-flags }}
      - name: Run slow tests
        run: >
          cargo test
          --release
          --workspace
          ${{ steps.prepare.outputs.feature-flags }}
          --features expensive-tests
          -- --ignored
      - name: Verify working directory is clean
        run: git diff --exit-code

  # States that we want to ensure can be built, but that we don't actively run tests for.
  check-msrv:
    name: >
      Check${{
      matrix.state != 'NOT_A_PUZZLE' && format(' {0}', matrix.state) || ''
      }} build on ${{ matrix.target }}
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.state != 'NOT_A_PUZZLE' }}
    strategy:
      matrix:
        target:
          - Linux
          - macOS
          - Windows
        state:
          - ZFuture

        include:
          - target: Linux
            os: ubuntu-latest
          - target: macOS
            os: macOS-latest
          - target: Windows
            os: windows-latest

          - state: ZFuture
            rustflags: '--cfg zcash_unstable="zfuture"'

    env:
      RUSTFLAGS: ${{ matrix.rustflags }}
      RUSTDOCFLAGS: ${{ matrix.rustflags }}

    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
        with:
          extra-features: ${{ matrix.state != 'NOT_A_PUZZLE' && matrix.extra_flags || '' }}
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-msrv-${{ hashFiles('**/Cargo.lock') }}
      - name: Run check
        run: >
          cargo check
          --release
          --workspace
          --tests
          ${{ steps.prepare.outputs.feature-flags }}
      - name: Verify working directory is clean
        run: git diff --exit-code

  build-latest:
    name: Latest build on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macOS-latest]
    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-latest
      - uses: dtolnay/rust-toolchain@stable
        id: toolchain
      - run: rustup override set ${{steps.toolchain.outputs.name}}
      - name: Remove lockfile to build with latest dependencies
        run: rm Cargo.lock
      - name: Build crates
        run: >
          cargo build
          --workspace
          --all-targets
          ${{ steps.prepare.outputs.feature-flags }}
          --verbose
      - name: Verify working directory is clean (excluding lockfile)
        run: git diff --exit-code ':!Cargo.lock'

  build-nodefault:
    name: Build target ${{ matrix.target }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target:
          - wasm32-wasi

    steps:
      - uses: actions/checkout@v4
        with:
          path: crates
      # We use a synthetic crate to ensure no dev-dependencies are enabled, which can
      # be incompatible with some of these targets.
      - name: Create synthetic crate for testing
        run: cargo init --lib ci-build
      - name: Copy Rust version into synthetic crate
        run: cp crates/rust-toolchain.toml ci-build/
      - name: Copy patch directives into synthetic crate
        run: |
          echo "[patch.crates-io]" >> ./ci-build/Cargo.toml
          cat ./crates/Cargo.toml | sed "0,/.\+\(patch.crates.\+\)/d" >> ./ci-build/Cargo.toml
      - name: Add zcash_proofs as a dependency of the synthetic crate
        working-directory: ./ci-build
        run: cargo add --no-default-features --path ../crates/zcash_proofs
      - name: Add zcash_client_backend as a dependency of the synthetic crate
        working-directory: ./ci-build
        run: cargo add --features lightwalletd-tonic --path ../crates/zcash_client_backend
      - name: Copy pinned dependencies into synthetic crate
        run: cp crates/Cargo.lock ci-build/
      - name: Add target
        working-directory: ./ci-build
        run: rustup target add ${{ matrix.target }}
      - name: Build for target
        working-directory: ./ci-build
        run: cargo build --verbose --target ${{ matrix.target }}

  bitrot:
    name: Bitrot check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      # Build benchmarks to prevent bitrot
      - name: Build benchmarks
        run: cargo build --all --benches

  clippy:
    name: Clippy (MSRV)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
      - name: Run clippy
        uses: actions-rs/clippy-check@v1
        with:
          name: Clippy (MSRV)
          token: ${{ secrets.GITHUB_TOKEN }}
          args: >
            ${{ steps.prepare.outputs.feature-flags }}
            --all-targets
            --
            -D warnings

  clippy-beta:
    name: Clippy (beta)
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
      - uses: dtolnay/rust-toolchain@beta
        id: toolchain
      - run: rustup override set ${{steps.toolchain.outputs.name}}
      - name: Run Clippy (beta)
        uses: actions-rs/clippy-check@v1
        continue-on-error: true
        with:
          name: Clippy (beta)
          token: ${{ secrets.GITHUB_TOKEN }}
          args: >
            ${{ steps.prepare.outputs.feature-flags }}
            --all-targets
            --
            -W clippy::all

  codecov:
    name: Code coverage
    runs-on: ubuntu-latest
    container:
      image: xd009642/tarpaulin:develop-nightly
      options: --security-opt seccomp=unconfined

    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: codecov-cargo-${{ hashFiles('**/Cargo.lock') }}
      - name: Generate coverage report
        run: >
          cargo tarpaulin
          --engine llvm
          ${{ steps.prepare.outputs.feature-flags }}
          --release
          --timeout 600
          --out xml
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v4.5.0
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  doc-links:
    name: Intra-doc links
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
      - run: cargo fetch
      # Requires #![deny(rustdoc::broken_intra_doc_links)] in crates.
      - name: Check intra-doc links
        run: >
          cargo doc
          --all
          ${{ steps.prepare.outputs.feature-flags }}
          --document-private-items

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Check formatting
        run: cargo fmt --all -- --check

  protobuf:
    name: protobuf consistency
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - id: prepare
        uses: ./.github/actions/prepare
      - name: Install protoc
        uses: supplypike/setup-bin@v4
        with:
          uri: 'https://github.com/protocolbuffers/protobuf/releases/download/v25.1/protoc-25.1-linux-x86_64.zip'
          name: 'protoc'
          version: '25.1'
          subPath: 'bin'
      - name: Trigger protobuf regeneration
        run: >
          cargo check
          --workspace
          ${{ steps.prepare.outputs.feature-flags }}
      - name: Verify working directory is clean
        run: git diff --exit-code

  uuid:
    name: UUID validity
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Extract UUIDs
        id: extract
        run: |
          {
            echo 'UUIDS<<EOF'
            git grep -h "Uuid::from_u128" zcash_client_sqlite/ |
              sed -e "s,.*Uuid::from_u128(0x,," -e "s,_,-,g" -e "s,);,,"
            echo EOF
          } >> "$GITHUB_OUTPUT"
      - name: Check UUID validity
        env:
          UUIDS: ${{ steps.extract.outputs.UUIDS }}
        run: uuidparse -n -o type $UUIDS | xargs -L 1 test "invalid" !=
      - name: Check UUID type
        env:
          UUIDS: ${{ steps.extract.outputs.UUIDS }}
        run: uuidparse -n -o type $UUIDS | xargs -L 1 test "random" =
      - name: Check UUID uniqueness
        env:
          UUIDS: ${{ steps.extract.outputs.UUIDS }}
        run: >
          test $(
            uuidparse -n -o uuid $U4 | wc -l
          ) -eq $(
            uuidparse -n -o uuid $U4 | sort | uniq | wc -l
          )