name: Backend CI

on:
  push:
    branches:
      - master
    paths:
      - ".github/workflows/backend*"
      - "backend/**"
      - "!frontend/**"
  pull_request:
    paths:
      - ".github/workflows/backend*"
      - "backend/**"
      - "!frontend/**"

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always

defaults:
  run:
    working-directory: ./backend

jobs:
  check:
    name: Check Code
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4

      - name: Install Rust stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Rust Cache
        uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
        with:
          workspaces: backend

      - name: Build
        run: cargo check --all-targets --verbose
  tests:
    name: Run tests
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4

      - name: Install Rust stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Rust Cache
        uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
        with:
          workspaces: backend
          cache-on-failure: true

      - name: Cargo test
        run: cargo test --verbose --jobs 1
  docs:
    name: Check Documentation
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4

      - name: Install Rust stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Rust Cache
        uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
        with:
          workspaces: backend

      - name: Check internal documentation links
        run: RUSTDOCFLAGS="--deny broken_intra_doc_links" cargo doc --verbose --workspace --no-deps --document-private-items
  fmt:
    name: Run rustfmt
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4

      - name: Install Rust stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true
          components: clippy, rustfmt

      - name: Cargo fmt
        run: cargo fmt --verbose --all -- --check