name: build

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

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    strategy:
      matrix:
        yarn_version: [3, 4]
    env:
      NIX_PATH: nixpkgs=channel:nixpkgs-unstable
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4.0.2
        with:
          node-version: 18.x

      - name: Enable corepack
        run: corepack enable

      - name: Yarn install
        run: yarn

      - name: TypeScript
        if: matrix.yarn_version == 4
        run: yarn check

      - name: Build
        run: yarn build

      - name: Update dist
        if: matrix.yarn_version == 4 && github.repository_owner == 'stephank' && github.ref == 'refs/heads/main'
        run: |
          if [[ "$(git status --porcelain)" != "" ]]; then
            git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
            git config user.name "github-actions[bot]"
            git commit -m 'Update dist' dist/yarn-plugin-nixify.js
            git push
          fi

      - name: Set Yarn version
        run: yarn set version ${{ matrix.yarn_version }}

      - name: Install plugin
        run: yarn plugin import ./dist/yarn-plugin-nixify.js

      - name: Test without Nix
        run: yarn --no-immutable

      - name: Install Nix
        uses: cachix/install-nix-action@v25
        with:
          nix_path: nixpkgs=channel:nixos-unstable

      - name: Add bin
        run: |
          cat > hello.js << EOF
          #!/usr/bin/env node
          require('webpack')
          console.log('Hello nixify!')
          EOF
          chmod a+x hello.js

          jq '.bin = { hello: "./hello.js" }' package.json > new
          mv new package.json

      - name: Test with Nix
        run: yarn --no-immutable

      - name: Test nix-build
        run: |
          # This delete tests refetching the cache with Nix.
          nix-store --delete /nix/store/*-yarn-cache
          nix-build

      - name: Test bin
        run: ./result/bin/hello

      # TODO: Check there really is a separate derivation,
      # and that Yarn actually reuses the build.
      - name: Test isolated builds
        run: |
          # Matches example in  ISOLATED_BUILDS.md
          echo 'isolatedNixBuilds: ["sqlite3"]' >> .yarnrc.yml
          cat > default.nix << EOF
          { pkgs ? import <nixpkgs> { } }:

          pkgs.callPackage ./yarn-project.nix { } {
            src = ./.;
            overrideSqlite3Attrs = old: {
              npm_config_sqlite = "/";  # Don't accidentally use the wrong sqlite.
              buildInputs = old.buildInputs ++ (with pkgs; [ python3 sqlite ]);
            };
          }
          EOF

          yarn add sqlite3

          nix-build

      - name: Test individual packaging
        run: |
          echo 'individualNixPackaging: true' >> .yarnrc.yml
          yarn

          # This delete tests refetching a package with Nix.
          nix-store --delete /nix/store/*--yarnpkg-core-npm-*

          nix-build