name: Auto Theme Labeler

on:
  issues:
    types: [labeled]

jobs:
  auto-label:
    if: contains(github.event.issue.labels.*.name, 'Source Request')
    runs-on: ubuntu-latest
    env:
      REPO: ${{ github.repository }}
      ISSUE_NUMBER: ${{ github.event.issue.number }}
    steps:
      - name: Get Source Request URL
        id: get_url
        env:
          ISSUE_BODY: ${{ github.event.issue.body }}
        run: |
          URL=$(echo "$ISSUE_BODY" | sed -n '/### Source link/,+2p' | sed '1,2d' | tr -d '[:space:]')
          echo "URL=$URL" >> $GITHUB_OUTPUT
          echo "Using URL: \`$URL\`" >> $GITHUB_STEP_SUMMARY

      - name: Get User Agent
        id: get_user_agent
        run: |
          CHROME_VERSION=$(curl -s https://chromiumdash.appspot.com/fetch_releases?channel=Stable\&platform=Windows\&num=1 | jq -r '.[0].version // "126.0.6478.36"')
          echo "USER_AGENT=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/$CHROME_VERSION Safari/537.36" >> $GITHUB_OUTPUT

      - name: Check if URL is Valid
        id: url_check
        env:
          URL: ${{ steps.get_url.outputs.URL }}
          USER_AGENT: ${{ steps.get_user_agent.outputs.USER_AGENT }}
        run: |
          if [[ -z "$URL" ]]; then
            echo "url_valid=false" >> $GITHUB_OUTPUT
            echo "❌ Error: URL Not Found" >> $GITHUB_STEP_SUMMARY
            exit 1
          fi
          if ! curl --output /dev/null --silent --head --fail "$URL" -H "User-Agent: $USER_AGENT"; then
            echo "url_valid=false" >> $GITHUB_OUTPUT
            echo "❌ Error: Request Failed" >> $GITHUB_STEP_SUMMARY
            echo "URL is invalid or cloudflare issue or site is down" >> $GITHUB_ENV
            gh issue comment $ISSUE_NUMBER -b '
            > [!WARNING]  
            > **Unable to Check for Themes**
            > This issue may be due to Cloudflare protection on the website, an invalid URL, or the website being down.
            
            *This message is for development purposes and can be ignored otherwise.*
            ' -R $REPO
            exit 1
          fi
          echo "url_valid=true" >> $GITHUB_OUTPUT

      - name: Get Base URL
        if: steps.url_check.outputs.url_valid == 'true'
        id: get_base_url
        env:
          URL: ${{ steps.get_url.outputs.URL }}
        run: |
          BASE_URL=$(echo "$URL" | sed 's/https\?:\/\///' | cut -d'/' -f1)
          echo "BASE_URL=$BASE_URL" >> $GITHUB_OUTPUT
          echo "Using Base URL: \`$BASE_URL\`" >> $GITHUB_STEP_SUMMARY

      - name: Check Madara theme
        if: steps.url_check.outputs.url_valid == 'true'
        id: check_madara
        env:
          BASE_URL: ${{ steps.get_base_url.outputs.BASE_URL }}
          USER_AGENT: ${{ steps.get_user_agent.outputs.USER_AGENT }}
        run: |
          if curl --location --output /dev/null --silent --head --fail "https://$BASE_URL/wp-content/themes/madara/style.css" -H "User-Agent: $USER_AGENT"; then
            echo "madara=true" >> $GITHUB_OUTPUT
            echo "✅ Madara Theme Detected" >> $GITHUB_STEP_SUMMARY
          elif curl --location --output /dev/null --silent --head --fail "http://$BASE_URL/wp-content/themes/madara/style.css" -H "User-Agent: $USER_AGENT"; then
            echo "madara=true" >> $GITHUB_OUTPUT
            echo "✅ Madara Theme Detected" >> $GITHUB_STEP_SUMMARY
          else
            echo "madara=false" >> $GITHUB_OUTPUT
          fi

      - name: Check Lighnovelwp theme
        if: steps.url_check.outputs.url_valid == 'true'
        id: check_lighnovelwp
        env:
          BASE_URL: ${{ steps.get_base_url.outputs.BASE_URL }}
          USER_AGENT: ${{ steps.get_user_agent.outputs.USER_AGENT }}
        run: |
          if curl --location --output /dev/null --silent --head --fail "https://$BASE_URL/wp-content/themes/lightnovel/style.css" -H "User-Agent: $USER_AGENT"; then
            echo "lighnovelwp=true" >> $GITHUB_OUTPUT
            echo "✅ Lighnovelwp Theme Detected" >> $GITHUB_STEP_SUMMARY
          elif curl --location --output /dev/null --silent --head --fail "http://$BASE_URL/wp-content/themes/lightnovel/style.css" -H "User-Agent: $USER_AGENT"; then
            echo "lighnovelwp=true" >> $GITHUB_OUTPUT
            echo "✅ Lighnovelwp Theme Detected" >> $GITHUB_STEP_SUMMARY
          else
            echo "lighnovelwp=false" >> $GITHUB_OUTPUT
          fi

      - name: Check if the site has multiple themes
        if: steps.url_check.outputs.url_valid == 'true'
        id: check_multiple_themes
        env:
          MADARA: ${{ steps.check_madara.outputs.madara }}
          LIGHNOVELWP: ${{ steps.check_lighnovelwp.outputs.lighnovelwp }}
        run: |
          if [[ "$MADARA" == "true" && "$LIGHNOVELWP" == "true" ]]; then
            echo "multiple_themes=true" >> $GITHUB_OUTPUT
            echo "❌ Error: Multiple Themes Detected on Site" >> $GITHUB_STEP_SUMMARY
            exit 1
          fi
          echo "multiple_themes=false" >> $GITHUB_OUTPUT

      - name: Add Label
        if: steps.check_multiple_themes.outputs.multiple_themes == 'false'
        env:
          MADARA: ${{ steps.check_madara.outputs.madara }}
          LIGHNOVELWP: ${{ steps.check_lighnovelwp.outputs.lighnovelwp }}
        run: |
          if [[ "$MADARA" == "true" ]]; then
            gh issue edit $ISSUE_NUMBER --add-label "Theme: Madara" -R $REPO
          elif [[ "$LIGHNOVELWP" == "true" ]]; then
            gh issue edit $ISSUE_NUMBER --add-label "Theme: Lighnovelwp" -R $REPO
          else
            echo "No Theme Detected" >> $GITHUB_STEP_SUMMARY
          fi