name: Auto Label Issues

on:
  issues:
    types:
      - opened
      - edited

concurrency:
  group: ${{ github.workflow }}-${{ github.event.issue.number }}
  cancel-in-progress: true

jobs:
  auto-label:
    name: Auto Label Issues
    if: ${{ github.event.issue.body && contains(github.event.issue.body, '### Plugin') && contains(github.event.issue.labels.*.name, 'Bug') }}
    runs-on: ubuntu-latest

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

      - name: Extract Severity From Issue Body
        id: extract-severity
        run: |
          USER_SELECTED_SEVERITY=$(echo "${{ github.event.issue.body }}" | grep "### Severity" -A 2 | tail -n 1 | sed 's/[[:space:]]*$//')
          SELECTED_SEVERITY=""

          case "$USER_SELECTED_SEVERITY" in
              "Wrong Formatting"|"Wrong Content"|"Missing Chapter"|"Missing Images"|"Can't Load Novels"|"Domain Changed")
                  SELECTED_SEVERITY="$USER_SELECTED_SEVERITY"
                  ;;
              *)
                  SELECTED_SEVERITY="Other"
                  ;;
          esac
          echo "SELECTED_SEVERITY=$SELECTED_SEVERITY" >> $GITHUB_ENV

      - name: Extract Plugin From Issue Body
        id: parse-issue
        run: |
          SELECTED_PLUGIN=$(echo "${{ github.event.issue.body }}" | awk '/### Plugin/ {f=1; next} f && NF {print; exit}' | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')

          echo "SELECTED_PLUGIN=$SELECTED_PLUGIN" >> $GITHUB_ENV

      - name: Determine Corresponding Label
        id: determine-label
        run: |
          LABELS="$( jq --arg keys "${{ env.SELECTED_PLUGIN }}" '. as $data | $keys | split(", ") as $keyList | $keyList[] | . as $key | if $data[$key] != null then "\($key)[\($data[$key])]" else empty end' ./.github/scripts/keys.json | sed 's/"//g' | sed 's/^[^:]*: //' )"

          # Add "Plugin: " in front of each label
          LABELS_WITH_PREFIX="$(echo "$LABELS" | sed 's/^/Plugin: /')"

          # Save to GitHub environment
          printf "LABELS<<EOF\n%s\nEOF\n" "$LABELS_WITH_PREFIX" >> $GITHUB_ENV

      - name: Add Labels To Issue
        if: env.LABELS != ''
        uses: actions-ecosystem/action-add-labels@v1
        with:
          labels: |
            Severity: ${{ env.SELECTED_SEVERITY }}
            ${{ env.LABELS }}

      - name: Handle Missing Label
        if: env.LABELS == ''
        run: echo "No matching label found for the selected plugin."