name: Build and Release Patch PCK

on:
  push:
    branches:
      - 'patch-release'
    paths:
      - 'scripts/**'
      - 'scenes/**'
      - 'assets/**'
      - 'CHANGELOG_DRAFT.md'
  workflow_dispatch:

jobs:
  build-and-deploy-patch:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout Source Code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      # ── 1. Auto-generate version.json from CHANGELOG_DRAFT.md ────────────
      - name: Generate Version JSON & Bump Version
        run: python3 tools/generate_version_json.py

      # ── 2. Commit bumped files back to the repo ───────────────────────────
      - name: Commit Version Bump
        run: |
          git config user.name  "PatchBot"
          git config user.email "action@github.com"
          git add assets/data/version.json project.godot CHANGELOG_DRAFT.md
          git diff --staged --quiet || git commit -m "[AUTO] Version bump & changelog update"
          git push

      # ── 3. Detect changed files for patch PCK ────────────────────────────
      - name: Generate Changed Files List
        run: |
          git diff --name-only HEAD^ HEAD -- 'scripts/**' 'scenes/**' 'assets/**' > changed_files.txt
          echo "Files to patch:"
          cat changed_files.txt

      # ── 4. Build patch.pck ────────────────────────────────────────────────
      - name: Setup Godot
        uses: chickensoft-games/setup-godot@v1
        with:
          version: '4.3.0'
          use-dotnet: false

      - name: Run Build Patch Script
        run: godot --headless -s tools/build_patch.gd

      # ── 5. Generate checksums ─────────────────────────────────────────────────
      - name: Generate Checksums
        run: |
          sha256sum patch.pck > patch.pck.sha256
          sha256sum assets/data/version.json > version.json.sha256

      # ── 6. Upload artifacts to GitHub ─────────────────────────────────────────
      - name: Upload Patch Artifacts
        uses: actions/upload-artifact@v4
        with:
          name: patch-pck-${{ github.sha }}
          path: |
            patch.pck
            patch.pck.sha256
          retention-days: 90

      - name: Upload Version Manifest
        uses: actions/upload-artifact@v4
        with:
          name: version-manifest-${{ github.sha }}
          path: |
            assets/data/version.json
            version.json.sha256
          retention-days: 90

      # ── 7. Push patch.pck to public repo ─────────────────────────────────────
      - name: Push patch.pck to Public Repository
        uses: dmnemec/copy_file_to_another_repo_action@main
        env:
          API_TOKEN_GITHUB: ${{ secrets.PUBLIC_REPO_PAT }}
        with:
          source_file: 'patch.pck'
          destination_repo: '${{ github.actor }}/tekton-updates'
          destination_folder: 'latest'
          user_email: 'action@github.com'
          user_name: 'PatchBot'
          commit_message: '[AUTO] Pushed new patch.pck'

      - name: Push patch checksum to Public Repository
        uses: dmnemec/copy_file_to_another_repo_action@main
        env:
          API_TOKEN_GITHUB: ${{ secrets.PUBLIC_REPO_PAT }}
        with:
          source_file: 'patch.pck.sha256'
          destination_repo: '${{ github.actor }}/tekton-updates'
          destination_folder: 'latest'
          user_email: 'action@github.com'
          user_name: 'PatchBot'
          commit_message: '[AUTO] Pushed patch checksum'

      # ── 8. Push version.json to public repo ──────────────────────────────────
      - name: Push version.json to Public Repository
        uses: dmnemec/copy_file_to_another_repo_action@main
        env:
          API_TOKEN_GITHUB: ${{ secrets.PUBLIC_REPO_PAT }}
        with:
          source_file: 'assets/data/version.json'
          destination_repo: '${{ github.actor }}/tekton-updates'
          destination_folder: 'latest'
          user_email: 'action@github.com'
          user_name: 'PatchBot'
          commit_message: '[AUTO] Pushed new version.json'

      - name: Push version checksum to Public Repository
        uses: dmnemec/copy_file_to_another_repo_action@main
        env:
          API_TOKEN_GITHUB: ${{ secrets.PUBLIC_REPO_PAT }}
        with:
          source_file: 'version.json.sha256'
          destination_repo: '${{ github.actor }}/tekton-updates'
          destination_folder: 'latest'
          user_email: 'action@github.com'
          user_name: 'PatchBot'
          commit_message: '[AUTO] Pushed version checksum'