name: Pull Request
run-name: "Pull Request #${{ github.run_number }}"
on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

env:
  RELEASE_TYPE: "alpha"
  MINECRAFT_VERSION: "1.20.1"

jobs:    
  info:
    name: 🖥️ Project Info
    runs-on: ubuntu-latest
    outputs:
      project_version: ${{ steps.project_version.outputs.value }}
      project_name: ${{ steps.project_name.outputs.value }}
      project_full_name: ${{ steps.project_name.outputs.value }}-${{ steps.project_version.outputs.value }}
      changelog: ${{ steps.changelog.outputs.description }}
      diff: ${{ steps.read_diff.outputs.diff }}
      release_type: ${{ env.RELEASE_TYPE }}
      minecraft_version: ${{ env.MINECRAFT_VERSION }}
      exists: ${{ steps.check_tag.outputs.exists }}
    
    steps:
      - name: Checkout
        uses: actions/checkout@v4.2.2
        with:
          fetch-depth: 0
        
      - name: 🔍 Check pakku-lock.json
        id: check_pakku_lock
        shell: bash
        run: |
          if [ ! -f pakku-lock.json ]; then
            echo "❌ Could not find pakku-lock.json" && exit 1
          else
            echo "✔️ pakku-lock.json"
          fi
        
      - name: 🔍 Check pakku.json
        id: check_pakku
        shell: bash
        run: |
          if [ ! -f pakku.json ]; then
            echo "❌ Could not find pakku.json" && exit 1
          else
            echo "✔️ pakku.json"
          fi

      - name: 📈 Get latest tag
        id: latest_tag
        shell: bash
        run: |
          tag=$(git describe --tags --abbrev=0)
          if [ -z "$tag" ]; then
            echo "❌ Latest tag not found" && exit 1
          else
            echo "✔️ Latest tag found: $tag"
            echo "tag=$tag" >> $GITHUB_OUTPUT
          fi
        
      - name: 🔍 Check pakku-lock.json in previous tag
        id: check_pakku_lock_prev
        shell: bash
        run: |
          if git cat-file -e ${{ steps.latest_tag.outputs.tag }}:./pakku-lock.json 2>/dev/null; then
            echo "✔️ File pakku-lock.json found in previous tag"
            echo "file_found=true" >> $GITHUB_OUTPUT
          else
            echo "❌ File pakku-lock.json not found in previous tag"
            echo "file_found=false" >> $GITHUB_OUTPUT
          fi
        
      - name: 📁 Check and copy pakku-lock.json from previous tag
        id: check_copy_lock
        if: steps.check_pakku_lock_prev.outputs.file_found == 'true'
        shell: bash
        run: |
          git show tags/${{ steps.latest_tag.outputs.tag }}:./pakku-lock.json > ./pakku-lock-prev.json
          if [ -s ./pakku-lock-prev.json ]; then
            echo "✔️ File pakku-lock-prev.json created"
          else
            echo "❌ Error: File pakku-lock-prev.json is empty or not created" && exit 1
          fi
          fi
        
      - name: 📦 Download pakku.jar
        id: download_pakku
        if: steps.check_pakku_lock_prev.outputs.file_found == 'true'
        shell: bash
        run: |
          curl https://github.com/juraj-hrivnak/pakku/releases/latest/download/pakku.jar -o pakku.jar -L -J
          echo "✔️ Downloaded pakku.jar "
        
      - name: 🔄 Run pakku diff
        id: pakku_diff
        if: steps.check_pakku_lock_prev.outputs.file_found == 'true'
        shell: bash
        run: |
          java -jar pakku.jar diff -v --markdown PROJECTS_DIFF.md ./pakku-lock-prev.json ./pakku-lock.json
          if [ -f PROJECTS_DIFF.md ]; then
            echo "✔️ Comparison completed"
          else
            echo "❌ Error: File PROJECTS_DIFF.md not created" && exit 1
          fi
        
      - name: 📝 Read PROJECTS_DIFF.md to variable
        id: read_diff
        if: steps.check_pakku_lock_prev.outputs.file_found == 'true'
        shell: bash
        run: |
          echo "📝 Reading PROJECTS_DIFF.md to variable..."
          {
            echo 'diff<<EOF'
            cat -v PROJECTS_DIFF.md
            echo EOF
          } >> "$GITHUB_OUTPUT"
          echo "✔️ Diff content read to variable"
        
      - name: 📊 Get Project Name
        id: project_name
        uses: ActionsTools/read-json-action@v1.0.5
        with:
          file_path: "pakku.json"
          prop_path: "name"
        
      - name: 📊 Get Project Version
        id: project_version
        uses: ActionsTools/read-json-action@v1.0.5
        with:
          file_path: "pakku.json"
          prop_path: "version"

      - name: 📊 Get Minecraft Version
        id: minecraft_version
        uses: ActionsTools/read-json-action@v1.0.5
        with:
          file_path: "pakku-lock.json"
          prop_path: "mc_versions"
        
      - name: 📄 Changelog Parser
        id: changelog
        uses: coditory/changelog-parser@v1.0.2
        with:
          path: CHANGELOG.md
        
      - name: 📈 Upload Diff
        id: upload_diff
        if: ${{ steps.read_diff.outputs.diff != '' }} && steps.check_pakku_lock_prev.outputs.file_found == 'true'
        uses: actions/upload-artifact@v4.5.0
        with:
          name: Mods-diff
          path: PROJECTS_DIFF.md
        
      - name: 🔍 Check if tag exists
        uses: mukunku/tag-exists-action@v1.6.0
        id: check_tag
        with:
          tag: ${{ steps.project_version.outputs.value }}
        
      - name: 📝 Generate Github Summary
        uses: WcAServices/markdown-template-action@v1.1.0
        with:
          template: |
            📃 **Name**: ${{ steps.project_name.outputs.value }}
            📃 **Release**: ${{ steps.project_version.outputs.value }}
            📃 **Release Type**: ${{ env.RELEASE_TYPE }}
            📃 **Game Version**: ${{ env.MINECRAFT_VERSION }}

            ${{ steps.changelog.outputs.description }}
            ${{ steps.read_diff.outputs.diff }}