name: Setup tools and cache
inputs:
  tools:
    description: Extra tools
    required: false
    default: ""
  indexcache:
    description: Enable index cache
    required: true
    default: true
    type: boolean
  buildcache:
    description: Enable build cache
    required: true
    default: true
    type: boolean

runs:
  using: composite
  steps:
  - name: Add just to tools to install
    run: echo "tools=just" >>"$GITHUB_ENV"
    shell: bash

  - name: Add inputs.tools to tools to install
    if: inputs.tools != ''
    env:
      inputs_tools: ${{ inputs.tools }}
    run: echo "tools=$tools,$inputs_tools" >>"$GITHUB_ENV"
    shell: bash

  - name: Install tools
    uses: taiki-e/install-action@v2
    with:
      tool: ${{ env.tools }}

  - name: Install rust toolchains
    run: just toolchain
    shell: bash

  - name: rustc version
    run: rustc -vV
    shell: bash

  - name: Retrieve RUSTFLAGS for caching
    if: inputs.indexcache || inputs.buildcache
    id: retrieve-rustflags
    run: |
      if [ -n "${{ inputs.buildcache }}" ]; then
          echo RUSTFLAGS="$(just print-rustflags)" >> "$GITHUB_OUTPUT"
      else
          echo RUSTFLAGS= >> "$GITHUB_OUTPUT"
      fi
    shell: bash

  - run: just ci-install-deps
    shell: bash

  - if: inputs.indexcache || inputs.buildcache
    uses: Swatinem/rust-cache@v2
    with:
      env-vars: "CARGO CC CFLAGS CXX CMAKE RUST JUST"
    env:
      RUSTFLAGS: ${{ steps.retrieve-rustflags.outputs.RUSTFLAGS }}

  - name: Find zig location and create symlink to it in ~/.local/bin
    if: env.JUST_USE_CARGO_ZIGBUILD
    run: |
      python_package_path=$(python3 -m site --user-site)
      ln -s "${python_package_path}/ziglang/zig" "$HOME/.local/bin/zig"
    shell: bash

  - name: Calculate zig cache key
    if: env.JUST_USE_CARGO_ZIGBUILD
    run: |
      ZIG_VERSION=$(zig version)
      SYS_CRATE_HASHSUM=$(cargo tree --all-features --prefix none --no-dedupe --target "$CARGO_BUILD_TARGET" | grep -e '-sys' -e '^ring' | sort -u | sha1sum | sed 's/[ -]*//g')
      PREFIX=v0-${JOB_ID}-zig-${ZIG_VERSION}-${CARGO_BUILD_TARGET}-
      echo "ZIG_CACHE_KEY=${PREFIX}${SYS_CRATE_HASHSUM}" >> "$GITHUB_ENV"
      echo -e "ZIG_CACHE_RESTORE_KEY=$PREFIX" >> "$GITHUB_ENV"
    shell: bash
    env:
      RUSTFLAGS: ${{ steps.retrieve-rustflags.outputs.RUSTFLAGS }}
      JOB_ID: ${{ github.job }}

  - name: Get zig global cache dir
    if: env.JUST_USE_CARGO_ZIGBUILD
    id: zig_global_cache_dir_path
    run: |
      cache_dir=$(zig env | jq -r '.global_cache_dir')
      echo "cache_dir=$cache_dir" >> "$GITHUB_OUTPUT"
    shell: bash

  - name: Cache zig compilation
    if: env.JUST_USE_CARGO_ZIGBUILD
    uses: actions/cache@v3
    with:
      path: ${{ steps.zig_global_cache_dir_path.outputs.cache_dir }}
      key: ${{ env.ZIG_CACHE_KEY }}
      restore-keys: |
        ${{ env.ZIG_CACHE_RESTORE_KEY }}