# Main CI workflow to validate that files are formatted correctly, pass tests,
# and pass lints.
#
# CI workflow was based on a lot of work from other people:
# - https://github.com/heim-rs/heim/blob/master/.github/workflows/ci.yml
# - https://github.com/BurntSushi/ripgrep/blob/master/.github/workflows/ci.yml
# - https://www.reillywood.com/blog/rust-faster-ci/
# - https://matklad.github.io/2021/09/04/fast-rust-builds.html

name: ci

on:
  workflow_dispatch:
  pull_request:
  push:
    branches:
      - main

env:
  RUST_BACKTRACE: 1
  CARGO_INCREMENTAL: 0
  CARGO_PROFILE_DEV_DEBUG: 0
  CARGO_HUSKY_DONT_INSTALL_HOOKS: true
  COMPLETION_DIR: "target/tmp/bottom/completion/"
  MANPAGE_DIR: "target/tmp/bottom/manpage/"
  CROSS_VERSION: "git:588b3c99db52b5a9c5906fab96cfadcf1bde7863"

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' || github.repository != 'ClementTsang/bottom' }}

jobs:
  # Check if things should be skipped.
  pre-job:
    runs-on: ubuntu-24.04
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - name: Check if this action should be skipped
        id: skip_check
        uses: fkirc/skip-duplicate-actions@f75f66ce1886f00957d99748a42c724f4330bdcf # v5.3.1
        with:
          skip_after_successful_duplicate: "true"
          paths: '[".cargo/**", ".github/workflows/ci.yml", ".github/ci/**", "sample_configs/**", "src/**", "tests/**", "build.rs", "Cargo.lock", "Cargo.toml", "clippy.toml", "rustfmt.toml", "Cross.toml"]'
          do_not_skip: '["workflow_dispatch", "push"]'

  # Runs rustfmt + tests + clippy on the main supported platforms.
  supported:
    needs: pre-job
    if: ${{ needs.pre-job.outputs.should_skip != 'true' }}
    runs-on: ${{ matrix.info.os }}
    timeout-minutes: 12
    strategy:
      fail-fast: false
      matrix:
        info:
          - {
              os: "ubuntu-24.04",
              target: "x86_64-unknown-linux-gnu",
              cross: false,
            }
          - {
              os: "ubuntu-24.04-arm",
              target: "aarch64-unknown-linux-gnu",
              cross: false,
            }
          - { os: "macos-15", target: "x86_64-apple-darwin", cross: false }
          - { os: "macos-15", target: "aarch64-apple-darwin", cross: false }
          - {
              os: "windows-2022",
              target: "x86_64-pc-windows-msvc",
              cross: false,
            }
        features: ["--all-features", "--no-default-features"]
    steps:
      - name: Checkout repository
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Read Rust version
        shell: bash
        run: |
          VER=$(cat .github/ci/rust_version.txt)
          echo "RUST_VERSION=$VER" >> $GITHUB_ENV
          echo "$VER"

      - name: Set up Rust toolchain
        uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9
        with:
          toolchain: ${{ env.RUST_VERSION }}
          components: rustfmt, clippy
          target: ${{ matrix.info.target }}

      - name: Enable Rust cache
        uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # 2.8.1
        if: ${{ github.event_name != 'pull_request' || ! github.event.pull_request.head.repo.fork }} # If it is a PR, only if not a fork
        with:
          key: ${{ matrix.info.target }}
          cache-all-crates: true

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

      # TODO: add junit output using nextest for codecov (https://docs.codecov.com/docs/test-analytics)
      - name: Run tests
        uses: ClementTsang/cargo-action@2438cc5f3ba4e971289fffca2a00dedea6911f14 # v0.0.7
        with:
          command: test
          args: --no-fail-fast --locked ${{ matrix.features }} --target=${{ matrix.info.target }} -- --nocapture --quiet
          use-cross: ${{ matrix.info.cross }}
          cross-version: ${{ env.CROSS_VERSION }}
        env:
          RUST_BACKTRACE: full

      - name: Run clippy
        uses: ClementTsang/cargo-action@2438cc5f3ba4e971289fffca2a00dedea6911f14 # v0.0.7
        with:
          command: clippy
          args: ${{ matrix.features }} --all-targets --workspace --locked --target=${{ matrix.info.target }} -- -D warnings
          use-cross: ${{ matrix.info.cross }}
          cross-version: ${{ env.CROSS_VERSION }}
        env:
          RUST_BACKTRACE: full

  # Run checks for unsupported platforms.
  #
  # Each target specifies a list of checks to run via the 'checks' array property.
  # Available checks:
  #   - format: Run cargo fmt --check
  #   - clippy: Clippy with all features (warnings allowed)
  #   - clippy-deny: Clippy with all features (deny on warnings, implies clippy)
  #   - clippy-no-features: Clippy with no features (warnings allowed)
  #   - test: Run cargo test
  #
  # Note: 'clippy-deny' implies 'clippy' and is mutually exclusive with it.
  # Also, 'clippy' and 'clippy-deny' cannot be combined with 'clippy-no-features'.
  #
  # TODO: Maybe some of these should be allowed to fail? If so, I guess we can add back the "unofficial" MSRV,
  # I would also put android there.
  unsupported-check:
    needs: pre-job
    strategy:
      fail-fast: false
      matrix:
        info:
          # x86 or x86-64
          - {
              os: "ubuntu-24.04",
              target: "i686-unknown-linux-gnu",
              cross: true,
              checks: ["format", "clippy-deny", "test"],
            }
          - {
              os: "ubuntu-24.04",
              target: "x86_64-unknown-linux-musl",
              cross: false,
              checks: ["format", "clippy-deny", "test"],
            }
          - {
              os: "ubuntu-24.04",
              target: "i686-unknown-linux-musl",
              cross: true,
              checks: ["format", "clippy-deny", "test"],
            }

          - {
              os: "windows-2022",
              target: "i686-pc-windows-msvc",
              cross: false,
              checks: ["format", "clippy-deny", "test"],
            }
          - {
              os: "windows-2022",
              target: "x86_64-pc-windows-gnu",
              cross: false,
              checks: ["format", "clippy-deny", "test"],
            }

          # Windows ARM
          # TODO: Promote to official?
          - {
              os: "windows-11-arm",
              target: "aarch64-pc-windows-msvc",
              cross: false,
              checks: ["format", "clippy-deny", "test"],
            }

          # Beta
          - {
              os: "ubuntu-24.04",
              target: "x86_64-unknown-linux-gnu",
              cross: false,
              rust: "beta",
              checks: ["format", "clippy-deny", "test"],
            }
          - {
              os: "macos-15",
              target: "aarch64-apple-darwin",
              cross: false,
              rust: "beta",
              checks: ["format", "clippy-deny", "test"],
            }
          - {
              os: "windows-2022",
              target: "x86_64-pc-windows-msvc",
              cross: false,
              rust: "beta",
              checks: ["format", "clippy-deny", "test"],
            }

          # armv7
          - {
              os: "ubuntu-24.04",
              target: "armv7-unknown-linux-gnueabihf",
              cross: true,
              checks: ["clippy-no-features"],
            }

          # armv6
          - {
              os: "ubuntu-24.04",
              target: "arm-unknown-linux-gnueabihf",
              cross: true,
              checks: ["clippy-no-features"],
            }

          # PowerPC 64 LE
          - {
              os: "ubuntu-24.04",
              target: "powerpc64le-unknown-linux-gnu",
              cross: true,
              checks: ["clippy-no-features"],
            }

          # Risc-V 64gc
          - {
              os: "ubuntu-24.04",
              target: "riscv64gc-unknown-linux-gnu",
              cross: true,
              checks: ["clippy-no-features"],
            }

          # Loongarch
          - {
              os: "ubuntu-24.04",
              target: "loongarch64-unknown-linux-gnu",
              cross: true,
              checks: ["clippy-no-features"],
            }

          # Android ARM64
          - {
              os: "ubuntu-24.04",
              target: "aarch64-linux-android",
              cross: true,
              checks: ["clippy-no-features"],
            }

          # FreeBSD
          - {
              os: "ubuntu-24.04",
              target: "x86_64-unknown-freebsd",
              cross: true,
              os-version: "15.0",
              checks: ["format", "clippy", "test"],
            }

          # NetBSD
          - {
              os: "ubuntu-24.04",
              target: "x86_64-unknown-netbsd",
              cross: true,
              os-version: "10.1",
              checks: ["clippy", "test"],
            }
    runs-on: ${{ matrix.info.os }}
    if: ${{ needs.pre-job.outputs.should_skip != 'true' }}
    timeout-minutes: 12
    steps:
      - name: Checkout repository
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Read Rust version
        shell: bash
        run: |
          VER=$(cat .github/ci/rust_version.txt)
          echo "RUST_VERSION=$VER" >> $GITHUB_ENV
          echo "$VER"

      - name: Set up Rust toolchain
        uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9
        with:
          toolchain: ${{ matrix.info.rust || env.RUST_VERSION }}
          target: ${{ matrix.info.target }}
          components: ${{ contains(matrix.info.checks, 'format') && 'rustfmt, clippy' || 'clippy' }}

      - name: Enable Rust cache
        uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # 2.8.1
        if: ${{ github.event_name != 'pull_request' || ! github.event.pull_request.head.repo.fork }} # If it is a PR, only if not a fork
        with:
          key: ${{ matrix.info.target }}
          cache-all-crates: true

      - name: Check cargo fmt
        if: ${{ contains(matrix.info.checks, 'format') }}
        run: cargo fmt --all -- --check

      - name: Run tests
        uses: ClementTsang/cargo-action@2438cc5f3ba4e971289fffca2a00dedea6911f14 # v0.0.7
        if: ${{ contains(matrix.info.checks, 'test') && !contains(matrix.info.target, 'bsd') }}
        with:
          command: test
          args: --no-fail-fast --locked --target=${{ matrix.info.target }} -- --nocapture --quiet
          use-cross: ${{ matrix.info.cross }}
          cross-version: ${{ matrix.info.cross-version || env.CROSS_VERSION }}
        env:
          RUST_BACKTRACE: full

      # *BSD targets run tests in a VM due to cross limitations.
      - name: Run tests (BSD)
        if: ${{ contains(matrix.info.checks, 'test') && contains(matrix.info.target, 'bsd') }}
        uses: ./.github/actions/test-bsd-target
        with:
          target: ${{ matrix.info.target }}
          os-version: ${{ matrix.info.os-version }}

      - name: Set up clippy configuration
        shell: bash
        run: |
          if [[ "${{ contains(matrix.info.checks, 'clippy') && contains(matrix.info.checks, 'clippy-deny') }}" == "true" ]]; then
            echo "Error: Cannot have both 'clippy' and 'clippy-deny'. 'clippy-deny' implies 'clippy' with stricter warnings."
            exit 1
          fi

          if [[ "${{ contains(matrix.info.checks, 'clippy-deny') && contains(matrix.info.checks, 'clippy-no-features') }}" == "true" ]]; then
            echo "Error: Cannot have both 'clippy-deny' (all-features) and 'clippy-no-features'. They are mutually exclusive."
            exit 1
          fi

          if [[ "${{ contains(matrix.info.checks, 'clippy') && contains(matrix.info.checks, 'clippy-no-features') }}" == "true" ]]; then
            echo "Error: Cannot have both 'clippy' (all-features) and 'clippy-no-features' in the same checks array. They are mutually exclusive."
            exit 1
          fi

          # Determine deny vs warn flags
          if [[ "${{ contains(matrix.info.checks, 'clippy-deny') }}" == "true" ]]; then
            echo "CLIPPY_FLAGS_EXTRA=-D warnings" >> $GITHUB_ENV
          else
            echo "CLIPPY_FLAGS_EXTRA=" >> $GITHUB_ENV
          fi

          # Determine all-features (default) vs no-features
          if [[ "${{ contains(matrix.info.checks, 'clippy-no-features') }}" == "true" ]]; then
            echo "FEATURE_FLAGS=--no-default-features" >> $GITHUB_ENV
          else
            echo "FEATURE_FLAGS=" >> $GITHUB_ENV
          fi

      - name: Run clippy
        uses: ClementTsang/cargo-action@2438cc5f3ba4e971289fffca2a00dedea6911f14 # v0.0.7
        if: ${{ contains(matrix.info.checks, 'clippy') || contains(matrix.info.checks, 'clippy-deny') || contains(matrix.info.checks, 'clippy-no-features') }}
        with:
          command: clippy
          args: --all-targets --workspace --target=${{ matrix.info.target }} --locked ${{ env.FEATURE_FLAGS }} -- ${{ env.CLIPPY_FLAGS_EXTRA }}
          use-cross: ${{ matrix.info.cross }}
          cross-version: ${{ matrix.info.cross-version || env.CROSS_VERSION }}

  # # Check BSD platforms using a VM layer.
  # check-bsd-vm:
  #   needs: pre-job
  #   if: ${{ needs.pre-job.outputs.should_skip != 'true' }}
  #   strategy:
  #     fail-fast: false
  #     matrix:
  #       info:
  #         # OpenBSD is not very well-supported, given that it's tier 3. We skip clippy and only run basic tests + fmt.
  #         # We also use `--no-default-features` when building as starship-battery does not support OpenBSD.
  #         # Cross also doesn't support OpenBSD, so we will do it with VMs here too.
  #         - { os_release: "7.8", target: "x86_64-unknown-openbsd" } # Supports Rust 1.90
  #   uses: ./.github/workflows/bsd_vm_check.yml
  #   with:
  #     os-target: ${{ matrix.info.target }}
  #     os-version: ${{ matrix.info.os_release }}

  completion:
    name: "CI Pass Check"
    needs: [supported, unsupported-check]
    if: ${{ needs.supported.result != 'skipped' || needs.unsupported-check.result != 'skipped' }}
    runs-on: "ubuntu-24.04"
    steps:
      - name: CI Passed
        if: ${{ (needs.supported.result == 'success' || needs.supported.result == 'skipped') && (needs.unsupported-check.result == 'success' || needs.unsupported-check.result == 'skipped') }}
        run: |
          echo "CI workflow completed successfully.";

      - name: CI Failed
        if: ${{ needs.supported.result == 'failure' || needs.unsupported-check.result == 'failure' }}
        run: |
          echo "CI workflow failed.";
          exit 1;

      - name: CI Cancelled
        if: ${{ needs.supported.result == 'cancelled' || needs.unsupported-check.result == 'cancelled' }}
        run: |
          echo "CI workflow was cancelled.";
          exit 1;