name: Validate Discussions

on:
  discussion:
    types: [created, edited]

permissions:
  contents: read

jobs:
  validate:
    runs-on: ubuntu-latest
    if: github.event.discussion.category.name == 'Channel Search'
    steps:
      - name: Checkout repository code
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - uses: tibdex/github-app-token@0d49dd721133f900ebd5e0dff2810704e8defbc6 # v1.8.2
        if: ${{ !env.ACT }}
        id: create-app-token
        with:
          app_id: ${{ secrets.APP_ID }}
          private_key: ${{ secrets.APP_PRIVATE_KEY }}

      - name: Setup Node.js
        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 22
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run discussion:validate
        id: validator
        continue-on-error: true
        env:
          RAW_BODY: ${{ github.event.discussion.body }}
          DISC_NUMBER: ${{ github.event.discussion.number }}
          GITHUB_TOKEN: ${{ steps.create-app-token.outputs.token || secrets.GITHUB_TOKEN }}
        run: |
          npm run discussion:validate -- \
            --number "$DISC_NUMBER" \
            --body "$RAW_BODY"

      - name: Handle Discussion Result
        if: always() && hashFiles('temp/logs/result.json') != ''
        env:
          GH_TOKEN: ${{ steps.create-app-token.outputs.token }}
          DISC_NUMBER: ${{ github.event.discussion.number }}
        run: |
          COMMENT=$(jq -r '.comment // empty' temp/logs/result.json)
          LABEL=$(jq -r '.label // empty' temp/logs/result.json)

          if [ "${{ env.ACT }}" = "true" ]; then
            echo "[MOCK] Comment: $COMMENT"
            echo "[MOCK] Label: $LABEL"
          else
            if [ -n "$COMMENT" ] && [ "$COMMENT" != "null" ]; then
              gh discussion comment $DISC_NUMBER --body "$COMMENT"
            fi

            if [ -n "$LABEL" ] && [ "$LABEL" != "null" ]; then
              gh discussion edit $DISC_NUMBER --add-label "$LABEL"
            fi
          fi