name: CI

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

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: "1"
  RUSTFLAGS: -D warnings

jobs:
  fmt:
    name: cargo fmt --check
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@1.83
        with:
          components: rustfmt
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-fmt-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
          restore-keys:
            - ${{ runner.os }}-cargo-fmt-
      - run: cargo fmt --all -- --check

  clippy:
    name: cargo clippy
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@1.83
        with:
          components: clippy
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-clippy-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
          restore-keys:
            - ${{ runner.os }}-cargo-clippy-
      - run: cargo clippy --workspace --all-targets -- -D warnings

  test:
    name: cargo test
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@1.83
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
          restore-keys:
            - ${{ runner.os }}-cargo-test-
      - run: cargo test --workspace --all-targets

  keymaps:
    name: editor keymaps
    runs-on: ubuntu-latest
    # Serialise behind the cargo jobs so we never compete with them
    # for runners, and inherit their warm cargo cache instead of
    # forcing a release build of our own.
    needs: test
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@1.83
      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
          restore-keys:
            - ${{ runner.os }}-cargo-test-
      - name: install Neovim + Vim
        run: |
          set -euo pipefail
          # Test the minimum supported Neovim version (0.11.0) so we
          # catch API regressions at the bottom of the supported range.
          # Pinning to a specific patch version; bump when 0.12 ships.
          NVIM_VER=v0.11.0
          curl -fsSL -o /tmp/nvim.tar.gz \
            "https://github.com/neovim/neovim/releases/download/${NVIM_VER}/nvim-linux-x86_64.tar.gz"
          sudo tar -xzf /tmp/nvim.tar.gz -C /opt
          sudo ln -sf /opt/nvim-linux-x86_64/bin/nvim /usr/local/bin/nvim
          nvim --version | head -1
          # Vim from apt is fine — only the pure-VimL keymaps run there.
          sudo apt-get update -qq
          sudo apt-get install -y --no-install-recommends vim
          vim --version | head -1
      - name: run Neovim keymap harness
        run: ./development/tests/test-keymaps.sh
      - name: run Vim keymap harness
        run: ./development/tests/test-keymaps-vim.sh
      - name: run Neovim config parity harness
        run: ./development/tests/test-config.sh
      - name: run Vim config parity harness
        run: ./development/tests/test-config-vim.sh
      - name: run Neovim calendar integration harness
        run: ./development/tests/test-calendar.sh
      - name: run Vim calendar integration harness
        run: ./development/tests/test-calendar-vim.sh
      - name: run Vim vars-shim harness
        run: ./development/tests/test-vars-vim.sh