name: Java CI with Gradle
on:
  push:
    branches:
      - '**'
  pull_request:
    branches:
      - '**'

permissions:
  pull-requests: write

env:
  MARKER: '🎈'

jobs:
  define-versions:
    runs-on: ubuntu-latest

    outputs:
      versions: ${{ steps.versions.outputs.versions }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Define Versions
        id: versions
        run: |
          versions="["
          for item in $(ls mc); do
            versions+="\"$item\", "
          done
          
          versions="${versions%,*}]"
          echo "versions=$versions" >> "$GITHUB_OUTPUT"
      - name: Ensure that versions.json includes all versions
        run: node -e 'const fs = require("fs"); const versions = JSON.parse(fs.readFileSync("versions.json", "utf8")); const expectedVersions = fs.readdirSync("mc"); if (expectedVersions.length !== versions.length || !expectedVersions.every(v => versions.includes(v))) { throw new Error("versions.json does not match the expected versions in mc/ folder"); }'

  build:
    needs: define-versions
    strategy:
      fail-fast: false
      matrix:
        version: ${{ fromJSON(needs.define-versions.outputs.versions) }}

    name: Build ${{ matrix.version }}
    timeout-minutes: 10

    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Validate Gradle wrapper
        uses: gradle/actions/wrapper-validation@v4

      - name: Set up JDK 21
        uses: actions/setup-java@v4
        with:
          java-version: '21'
          distribution: 'temurin'

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          add-job-summary-as-pr-comment: on-failure

      - name: Generate ${{ matrix.version }}
        run: ./gradlew :mc:${{ matrix.version }}:runServer --stacktrace

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: data-${{ matrix.version }}
          path: mc/${{ matrix.version }}/run/server/minecraft-data
          if-no-files-found: error

  repackage:
    needs: build

    name: Repackage versions

    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - run: npm install

      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts
          merge-multiple: true

      - name: Upload artifact
        id: uploadMerged
        uses: actions/upload-artifact@v4
        with:
          name: merged-data
          path: artifacts/*
          if-no-files-found: error

      - name: Sending artifacts to minecraft-data
        # Check if PR starts with marker
        if: startsWith(github.event.pull_request.title, env.MARKER)
        env:
          ARTIFACT_URL: ${{ steps.uploadMerged.outputs.artifact-url }}
          GITHUB_TOKEN: ${{ secrets.PAT_PASSWORD }}
          PR_TITLE: ${{ github.event.pull_request.title }}
          PR_NUMBER: ${{ github.event.pull_request.number }}
        run: node .github/commands/send.js