name: "[Icon] Icon update approved"
on:
  issues:
    types: [labeled]

jobs:
  update-icon:
    runs-on: ubuntu-latest
    # This condition ensures the job only runs when the 'approved' label is updated and the issue title starts with 'feat(icons): update '
    if: |
      contains(github.event.issue.labels.*.name, 'approved') &&
      startsWith(github.event.issue.title, 'feat(icons): update ')
    env:
      ICON_TYPE: ${{ contains(github.event.issue.labels.*.name, 'normal-icon') && 'normal' || 'monochrome' }}
    steps:
      - name: Obtain token
        id: obtainToken
        uses: tibdex/github-app-token@v2
        with:
          private_key: ${{ secrets.DASHBOARD_ICONS_MANAGER_APP_PRIVATE_KEY }}
          app_id: ${{ vars.DASHBOARD_ICONS_MANAGER_APP_ID }}
      - name: Checkout repository
        uses: actions/checkout@v4
        env:
          GITHUB_TOKEN: ${{ steps.obtainToken.outputs.token }}
      - name: Set Up Python
        uses: actions/setup-python@v4
        with:
          python-version: "3.11"
      - name: Install Dependencies
        run: |
          pip install cairosvg pillow requests
          sudo apt-get update
          sudo apt-get install -y zopfli webp
      - name: Parse issue form
        id: parse_issue_form
        run: echo "ISSUE_FORM=$(python scripts/parse_issue_form.py)" >> "$GITHUB_OUTPUT"
        env:
          INPUT_ISSUE_BODY: ${{ github.event.issue.body }}
      - name: Validate Categories
        run: |
          import json
          import sys
          import os

          # Load allowed categories from metadata.map.json
          map_file = "metadata.map.json"
          try:
              with open(map_file, 'r', encoding='utf-8') as f:
                  map_data = json.load(f)
              # Assuming the first key in the map holds the example structure
              example_key = list(map_data.keys())[0]
              allowed_categories = set(map_data[example_key]['categories'])
              print(f"Loaded {len(allowed_categories)} allowed categories from {map_file}")
          except Exception as e:
              print(f"::error file={map_file}::Failed to load or parse allowed categories from {map_file}: {e}")
              sys.exit(1)

          # Load submitted form data
          form_json_string = os.environ.get('INPUT_ISSUE_FORM')
          if not form_json_string:
            print("::error::Failed to get form JSON from environment variable.")
            sys.exit(1)

          try:
              form_data = json.loads(form_json_string)
          except json.JSONDecodeError as e:
              print(f"::error::Failed to parse form JSON: {e}")
              print(f"Form JSON string was: {form_json_string}")
              sys.exit(1)

          # Extract submitted categories (handle potential missing key or None value)
          # NOTE: The update forms might not have a 'Categories' field if categories aren't updatable via that form.
          # If 'Categories' is missing or None in the form data, validation passes trivially.
          submitted_categories_str = form_data.get('Categories') # Label from issue form
          submitted_categories = set()
          if submitted_categories_str:
              submitted_categories = set(cat.strip() for cat in submitted_categories_str.split('\\n') if cat.strip())

          if not submitted_categories_str:
              print("No categories submitted in this form, skipping validation.")
          else:
              print(f"Submitted categories: {submitted_categories}")
              # Validate
              invalid_categories = submitted_categories - allowed_categories

              if invalid_categories:
                  print(f"::error::Invalid categories found: {', '.join(sorted(list(invalid_categories)))}")
                  print("Please ensure all submitted categories exist in metadata.map.json.")
                  sys.exit(1)
              else:
                  print("All submitted categories are valid.")

        env:
          INPUT_ISSUE_FORM: ${{ steps.parse_issue_form.outputs.ISSUE_FORM }}
      - name: Update metadata file
        run: python scripts/generate_metadata_file.py ${{ env.ICON_TYPE }} update
        env:
          INPUT_ISSUE_FORM: ${{ steps.parse_issue_form.outputs.ISSUE_FORM }}
          INPUT_ISSUE_AUTHOR_ID: ${{ github.event.issue.user.id }}
          INPUT_ISSUE_AUTHOR_LOGIN: ${{ github.event.issue.user.login }}
      - name: Generate icons
        run: python scripts/generate_icons.py ${{ env.ICON_TYPE }} update
        env:
          INPUT_ISSUE_FORM: ${{ steps.parse_issue_form.outputs.ISSUE_FORM }}
      - name: Generate File Tree
        run: python scripts/generate_file_tree.py svg png webp
      - name: Generate full metadata file
        run: python scripts/generate_metadata.py
      - name: Extract icon name
        id: extract_icon_name
        run: echo "ICON_NAME=$(python scripts/print_icon_name.py ${{ env.ICON_TYPE }} update)" >> "$GITHUB_OUTPUT"
        env:
          INPUT_ISSUE_FORM: ${{ steps.parse_issue_form.outputs.ISSUE_FORM }}
      - name: Compress icons
        run: |
          echo "Compressing PNGs..."
          find png/ -iname "${{ steps.extract_icon_name.outputs.ICON_NAME }}*.png" -print0 | xargs -0 -P 4 -I{} zopflipng -y {} {}
          echo "Compressing WEBPs..."
          find webp/ -iname "${{ steps.extract_icon_name.outputs.ICON_NAME }}*.webp" -print0 | xargs -0 -P 4 -I{} bash -c 'cwebp -quiet -lossless "$1" -o "$1"' _ {}
      - name: Commit changes
        run: |
          git config --global user.email "193821040+dashboard-icons-manager[bot]@users.noreply.github.com"
          git config --global user.name "Dashboard Icons Manager"
          git add .
          git commit -m "feat(icons): update ${{ steps.extract_icon_name.outputs.ICON_NAME }}"

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v7
        with:
          token: ${{ steps.obtainToken.outputs.token }}
          branch: icons/update-${{steps.extract_icon_name.outputs.ICON_NAME}}
          base: main
          title: "feat(icons): update ${{steps.extract_icon_name.outputs.ICON_NAME}}"
          delete-branch: true
          body: |
            This PR updates the icon ${{steps.extract_icon_name.outputs.ICON_NAME}} like requested in #${{github.event.issue.number}} to the project.
            Closes #${{github.event.issue.number}}