name: Push to Main CI

on:
  push:
    branches:
      - main

permissions:
  contents: write
  packages: write

jobs:
  build-and-package:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - name: Setup Deno
        uses: denoland/setup-deno@v2
        with:
          deno-version: v2.x

      - name: Cache Deno dependencies
        uses: actions/cache@v4
        with:
          path: ~/.cache/deno
          key: ${{ runner.os }}-deno-${{ hashFiles('**/deno.lock', '**/package.json') }}
          restore-keys: |
            ${{ runner.os }}-deno-

      - name: Cache Bun dependencies
        uses: actions/cache@v4
        with:
          path: |
            ~/.bun/install/cache
            packages/web/node_modules
          key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
          restore-keys: |
            ${{ runner.os }}-bun-

      # --- Detect changed packages ---
      - name: Get Changed Package Directories
        id: changed_packages
        uses: tj-actions/changed-files@v46
        with:
          dir_names: true
          files: packages/**

      - name: Build Changed Packages
        if: steps.changed_packages.outputs.all_changed_and_modified_files != ''
        run: |
          set -euo pipefail

          for pkg_dir in ${{ steps.changed_packages.outputs.all_changed_and_modified_files }}; do
            echo "🔍 Inspecting $pkg_dir..."

            if [[ -f "$pkg_dir/deno.lock" ]]; then
              echo "🔧 Building with Bun: $pkg_dir"
              (cd "$pkg_dir" && bun install && bun run build)
            else
              echo "⚠️ No recognizable build config in $pkg_dir — skipping"
            fi
          done

      - name: No Changed Packages
        if: steps.changed_packages.outputs.all_changed_and_modified_files == ''
        run: echo "📦 No changed packages detected. Nothing to build."