name: CI

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

env:
  # Show colored output in CI.
  CARGO_TERM_COLOR: always
  # Show full panics.
  RUST_BACKTRACE: "full"
  # Increase thread stack size to 8 megabytes.
  RUST_MIN_STACK: 8000000
  # Fail on documentation warnings.
  RUSTDOCFLAGS: '-D warnings'
  # Enable debug information generation for build dependencies.
  CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG: true
  # Build commands.
  CMD_DOC: cargo doc --all-features --no-deps
  CMD_CLIPPY: cargo clippy --all-features --all-targets -- -D warnings
  CMD_TEST: |
    # HACK: how to test both DB backends that are feature-gated?
    cargo test --all-features
    cargo test --package cuprate-blockchain --no-default-features --features redb
  CMD_BUILD: cargo build --all-features --all-targets
  CMD_HACK: |
    cargo install cargo-hack --locked
    cargo hack check --feature-powerset --no-dev-deps

jobs:
  # Run format separately.
  #
  # This will fast-cancel other CI early if this fails.
  #
  # `cargo fmt` checks _all_ code, regardless of the OS
  # or any `#[cfg]`'s, so this only needs to run on Linux.
  fmt:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Rust
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
          components: rustfmt
      - name: Format
        run: cargo fmt --all --check

  # Run typo checker separately.
  # This will fast-cancel other CI early if this fails.
  typo:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Spell Check
      uses: crate-ci/typos@master

  # Run 32-bit WASM support check separately.
  wasm-32-bit-support:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        # The list of crates to check for WASM 32 bit support
        #  TODO: check features.
        crate: [
            cuprate-epee-encoding,
            cuprate-rpc-types,
            cuprate-fixed-bytes,
        ]

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Install Rust
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
          targets: wasm32-unknown-unknown

      - name: Build WASM 32-bit
        run: cargo build --target wasm32-unknown-unknown -p ${{ matrix.crate }}

  # CI, runs on GitHub provided OSs.
  ci:
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        os: [
            windows-2022, # EOL = 2026-10-13 | <https://endoflife.date/windows-server>
            macos-15,     # EOL = 2027-09-16 | <https://endoflife.date/macos>
            macos-13,     # EOL = 2025-10-24 | For x64.
            ubuntu-22.04, # EOL = 2027-04-01 | <https://endoflife.date/ubuntu>
            ubuntu-22.04-arm,
        ]

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: recursive

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

      - name: Cache
        uses: actions/cache@v4
        with:
          path: target
          key: ${{ matrix.os }}

      - name: Download monerod
        uses: ./.github/actions/monerod-download

      - name: Install dependencies (Windows)
        if: matrix.os == 'windows-2022'
        uses: lukka/get-cmake@v3.31.6 # Needed for `randomx-rs`

      - name: Documentation
        run: ${{ env.CMD_DOC }}

      - name: Clippy (fail on warnings)
        run: ${{ env.CMD_CLIPPY }}

      - name: Test
        run: ${{ env.CMD_TEST }}

      - name: Build
        run: ${{ env.CMD_BUILD }}

      - name: Hack Check
        run: ${{ env.CMD_HACK }}

  # CI, runs in a Docker image.
  ci-docker:
    runs-on: ubuntu-latest
    container:
      image: ${{ matrix.os.image }}

    strategy:
      matrix:
        os:
        # TODO: support musl <https://github.com/Cuprate/cuprate/issues/336>
        # - { image: alpine:latest, commands: "apk update && apk add alpine-sdk cmake curl bash" }
        - { image: archlinux:latest, commands: "pacman -Syyu --noconfirm base-devel git cmake openssl" }
        - { image: debian:stable, commands: "apt update && apt -y install build-essential curl cmake git pkg-config libssl-dev" }
        - { image: fedora:latest, commands: "dnf install --assumeyes @development-tools gcc gcc-c++ cmake git openssl-devel perl-core" }

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          clean: false

      - name: Cache
        uses: actions/cache@v4
        with:
          path: target
          key: ${{ matrix.os.image }}

      - name: Dependencies
        run: ${{ matrix.os.commands }}

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

      - name: Download monerod
        uses: ./.github/actions/monerod-download

      - name: Documentation
        run: ${{ env.CMD_DOC }}

      - name: Clippy (fail on warnings)
        run: ${{ env.CMD_CLIPPY }}

      - name: Test
        run: ${{ env.CMD_TEST }}

      - name: Build
        run: ${{ env.CMD_BUILD }}

      - name: Hack Check
        run: ${{ env.CMD_HACK }}