name: Update Community Skins README

on:
  schedule:
    - cron: '*/5 * * * *'
  workflow_dispatch:

env:
  README_PATH: "${{ github.workspace }}/README.md"
  IMAGE_NAME: osc/skins-image
  GITEA_API: https://${{ vars.CONTAINER_REGISTRY }}/api/v1

jobs:
  generate_everything:
    name: Full CI/CD Pipeline
    runs-on: ubuntu-latest
    container:
      image: ${{ vars.CONTAINER_REGISTRY }}/${{ env.IMAGE_NAME }}:latest

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.TOKEN }}

      - name: Pull latest changes
        run: |
          git pull --rebase origin main || echo "Nothing to rebase"

      - name: Find Skin Repositories for all users
        id: find_skins
        shell: sh
        run: |
          total_valid_entries=0
          user_rows_file=$(mktemp)
          avatar_rows_file=$(mktemp)

          page=1
          while :; do
            echo "Fetching users page $page..." >&2
            users_json=$(curl --retry 3 --retry-delay 5 -sSL \
              -H "Authorization: token ${{ secrets.TOKEN }}" \
              "$GITEA_API/admin/users?limit=50&page=$page&_ts=$(date +%s)")

            count=$(echo "$users_json" | jq 'length')
            [ "$count" -eq 0 ] && break

            for i in $(seq 0 $((count - 1))); do
              user_login=$(echo "$users_json" | jq -r ".[$i].login")
              echo "Processing user: $user_login" >&2

              repos_json=$(curl --retry 3 --retry-delay 5 -sSL \
                -H "Authorization: token ${{ secrets.TOKEN }}" \
                "$GITEA_API/users/$user_login/repos?_ts=$(date +%s)")

              repos_type=$(echo "$repos_json" | jq -r 'type' 2>/dev/null || echo "not_array")
              repos_count=$(echo "$repos_json" | jq 'length' 2>/dev/null || echo "0")
              [ "$repos_type" != "array" ] || [ "$repos_count" -eq 0 ] && continue

              for j in $(seq 0 $((repos_count - 1))); do
                owner=$(echo "$repos_json" | jq -r ".[$j].owner.login")
                repo=$(echo "$repos_json" | jq -r ".[$j].name")
                html_url=$(echo "$repos_json" | jq -r ".[$j].html_url")

                echo "    Checking repo: $repo" >&2
                http_code=$(curl --retry 3 --retry-delay 5 -s -w "%{http_code}" -o temp_readme.json \
                  -H "Authorization: token ${{ secrets.TOKEN }}" \
                  "$GITEA_API/repos/$owner/$repo/contents/README.md?_ts=$(date +%s)")

                [ "$http_code" != "200" ] && continue

                readme_json=$(cat temp_readme.json)
                content=$(echo "$readme_json" | jq -r .content | base64 -d || echo "")

                echo "$content" | grep -q "^---$" && \
                echo "$content" | grep -q "^gitea: none" && \
                echo "$content" | grep -q "^include_toc: true" && \
                echo "$content" | grep -q "^# Skins"
                if [ $? -eq 0 ]; then
                  osu_id=$(echo "$content" | awk '/osuid:[ ]*[0-9]+/ { match($0, /[0-9]+/); print substr($0, RSTART, RLENGTH); exit }')
                  if [ -n "$osu_id" ]; then
                    user_data=$(curl --retry 3 --retry-delay 5 -s \
                      "https://osu.ppy.sh/api/get_user?k=${{ secrets.OSUAPIV1 }}&u=$osu_id&type=id&_ts=$(date +%s)")

                    pp_rank=$(echo "$user_data" | jq -r '.[0].pp_rank // "9999999"')
                    pp_country_rank=$(echo "$user_data" | jq -r '.[0].pp_country_rank // "-"')
                    username=$(echo "$user_data" | jq -r '.[0].username // "'$owner'"')
                    padded_rank=$(printf "%07d" "$pp_rank")

                    printf "%s|<tr><td>%s</td><td>%s</td><td>%s</td><td><a href=\"https://osu.ppy.sh/users/%s\">Profile</a></td><td><a href=\"%s\">Skins</a></td></tr>\n" \
                      "$padded_rank" "$username" "$pp_rank" "$pp_country_rank" "$osu_id" "$html_url" >> "$user_rows_file"

                    timestamp=$(( $(date +%s) / 86400 * 86400 ))
                    printf "%s|<a href=\"%s\"><img src=\"https://a.ppy.sh/%s?%s\" width=175 height=175></a>\n" \
                      "$padded_rank" "$html_url" "$osu_id" "$timestamp" >> "$avatar_rows_file"

                    total_valid_entries=$((total_valid_entries + 1))
                  fi
                fi
              done
            done

            page=$((page + 1))
          done

          echo "user_rows_file=$user_rows_file" >> "$GITHUB_OUTPUT"
          echo "avatar_rows_file=$avatar_rows_file" >> "$GITHUB_OUTPUT"
          echo "total_valid_entries=$total_valid_entries" >> "$GITHUB_OUTPUT"

      - name: Update README with user skins
        run: |
          user_rows_file="${{ steps.find_skins.outputs.user_rows_file }}"
          avatar_rows_file="${{ steps.find_skins.outputs.avatar_rows_file }}"
          README_PATH="README.md" # Assuming README.md is in the root of the repository

          # Use `cat >` for the initial content, no indentation inside the heredoc
          cat > "$README_PATH" <<-EOF
          # osu! Swiss Community Skin collection

          Welcome to the osu! Swiss Community Skin collection, this repository archives and showcases Skins osc members use.

          Enjoy looking around, click file names to download the skins and click on the images to see more about the skins.

          ## How do I add my skins here?

          If you're interested in adding your skins here please follow this tutorial [how-to-use](/how-to-use.md)

          ## Skins

          <details>
            <summary>list instead of icons</summary>
            <br />
            <table border="1" cellpadding="5" cellspacing="0">
              <thead>
                <tr>
                  <th>Name</th>
                  <th>Global Rank</th>
                  <th>Country Rank</th>
                  <th>Profile</th>
                  <th>Skins</th>
                </tr>
              </thead>
              <tbody>
          EOF

          sort -t '|' -k1,1n "$user_rows_file" | cut -d'|' -f2- | sed 's/^/      /' >> "$README_PATH"

          cat >> "$README_PATH" <<-EOF
              </tbody>
            </table>
          </details>

          <p align="center">
          EOF

          sort -t '|' -k1,1n "$avatar_rows_file" | cut -d'|' -f2- | sed 's/^/  /' >> "$README_PATH"

          cat >> "$README_PATH" <<-EOF
          </p>
          EOF

          rm -f "$user_rows_file" "$avatar_rows_file"

      - name: Configure Git
        run: |
          git config user.email "arlind@sulej.ch"
          git config user.name "ci-bot"
          git config lfs.https://${{ vars.CONTAINER_REGISTRY }}/arlind/skins.git/info/lfs.locksverify true

      - name: Add and Commit changes
        run: |
          git config advice.addIgnoredFile false
          git add README.md
          git commit -m "[ci skip] push back from pipeline" -q || echo "No changes to commit"

      - name: Push changes and create tag
        run: |
          if [ "${GITHUB_REF}" = "refs/heads/main" ]; then
            git push origin HEAD:main || echo "No changes to push"
          else
            git push origin HEAD:"${GITHUB_REF_NAME}" || echo "No changes to push"
          fi