name: Rust

on:
  # NB: this differs from the book's project!
  # These settings allow us to run this specific CI pipeline for PRs against
  # this specific branch (a.k.a. book chapter).
  push:
    branches:
      - root-chapter-04
  pull_request:
    types: [opened, synchronize, reopened]
    branches:
      - root-chapter-04

env:
  CARGO_TERM_COLOR: always
  SQLX_VERSION: 0.8.0
  SQLX_FEATURES: "rustls,postgres"

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    services:
      postgres:
        # Docker Hub image
        image: postgres:14
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: password
          POSTGRES_DB: postgres
        ports:
          - 5432:5432
    steps:
      # Downloads a copy of the code in your repository before running CI tests
      - name: Check out repository code
        # The uses keyword specifies that this step will run v3 of the actions/checkout action.
        # This is an action that checks out your repository onto the runner, allowing you to run scripts or other actions against your code (such as build and test tools).
        # You should use the checkout action any time your workflow will run against the repository's code.
        uses: actions/checkout@v3

        # This GitHub Action installs a Rust toolchain using rustup. It is designed for one-line concise usage and good defaults.
      - name: Install the Rust toolchain
        uses: dtolnay/rust-toolchain@stable

      # A GitHub Action that implements smart caching for rust/cargo projects with sensible defaults.
      - name: Rust Cache Action
        uses: Swatinem/rust-cache@v2
        with:
          key: sqlx-${{ env.SQLX_VERSION }}
      - name: Install sqlx-cli
        run:
          cargo install sqlx-cli
          --version=${{ env.SQLX_VERSION }}
          --features ${{ env.SQLX_FEATURES }}
          --no-default-features
          --locked
          # The --locked flag can be used to force Cargo to use the packaged Cargo.lock file if it is available.
          # This may be useful for ensuring reproducible builds, to use the exact same set of dependencies that were available when the package was published.
          # It may also be useful if a newer version of a dependency is published that no longer builds on your system, or has other problems
      - name: Install postgresql-client
        run: sudo apt-get update && sudo apt-get install postgresql-client -y
      - name: Migrate database
        run: |
          sudo apt-get install libpq-dev -y
          SKIP_DOCKER=true ./scripts/init_db.sh
      - name: Run tests
        run: cargo test

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt
      - name: Enforce formatting
        run: cargo fmt --check

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    services:
      postgres:
        image: postgres:14
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: password
          POSTGRES_DB: postgres
        ports:
          - 5432:5432
    steps:
      - uses: actions/checkout@v3
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy
      - uses: Swatinem/rust-cache@v2
        with:
          key: sqlx-${{ env.SQLX_VERSION }}
      - name: Install sqlx-cli
        run: cargo install sqlx-cli
          --version=${{ env.SQLX_VERSION }}
          --features ${{ env.SQLX_FEATURES }}
          --no-default-features
          --locked
      - name: Install postgresql-client
        run: sudo apt-get update && sudo apt-get install postgresql-client -y
      - name: Migrate database
        run: |
          sudo apt-get install libpq-dev -y
          SKIP_DOCKER=true ./scripts/init_db.sh
      - name: Linting
        run: cargo clippy -- -D warnings

  coverage:
    name: Code coverage
    runs-on: ubuntu-latest
    services:
      postgres:
        image: postgres:14
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: password
          POSTGRES_DB: postgres
        ports:
          - 5432:5432
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
      - uses: dtolnay/rust-toolchain@stable
      - name: Install libpq
        run: sudo apt-get update && sudo apt-get install postgresql-client -y
      - uses: Swatinem/rust-cache@v2
        with:
          key: sqlx-${{ env.SQLX_VERSION }}
      - name: Install tarpaulin
        run: cargo install cargo-tarpaulin
      - name: Install sqlx-cli
        run: cargo install sqlx-cli
          --version=${{ env.SQLX_VERSION }}
          --features ${{ env.SQLX_FEATURES }}
          --no-default-features
          --locked
      - name: Migrate database
        run: SKIP_DOCKER=true ./scripts/init_db.sh
      - name: Generate code coverage
        run: cargo tarpaulin --verbose --workspace