name: Update Community Skins README

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

env:
  README_PATH: "${{ github.workspace }}/README.md"
  IMAGE_NAME: arlind/skins
  GITEA_API: https://${{ 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: Find Skin Repositories for all users
        id: find_skins
        shell: sh
        run: |
          total_valid_entries=0
          user_rows_file=$(mktemp)
          avatar_rows_file=$(mktemp)

          echo "Fetching users page 1..." >&2
          users_json=$(curl -sSL -H "Authorization: token ${{ secrets.TOKEN }}" "$GITEA_API/admin/users?limit=50&page=1")

          jq_type=$(echo "$users_json" | jq -r 'type' 2>/dev/null || echo "jq_error_type")
          jq_length=$(echo "$users_json" | jq 'length' 2>/dev/null || echo "jq_error_length")
          if [ "$jq_type" != "array" ] || [ "$jq_length" -eq 0 ]; then
            echo "No users found or invalid JSON received on page 1. (Type: $jq_type, Length: $jq_length)." >&2
            exit 1
          fi

          i=0
          while [ "$i" -lt "$jq_length" ]; do
            user_login=$(echo "$users_json" | jq -r ".[$i].login")
            echo "Processing user: $user_login" >&2

            repos_json=$(curl -sSL -H "Authorization: token ${{ secrets.TOKEN }}" "$GITEA_API/users/$user_login/repos")
            repos_type=$(echo "$repos_json" | jq -r 'type' 2>/dev/null || echo "not_array")
            repos_count=$(echo "$repos_json" | jq 'length' 2>/dev/null || echo "0")
            if [ "$repos_type" != "array" ] || [ "$repos_count" -eq 0 ]; then
              echo "    No repos or invalid JSON for $user_login" >&2
              i=$((i + 1))
              continue
            fi

            j=0
            while [ "$j" -lt "$repos_count" ]; 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: $repo" >&2
              readme_json=$(curl -sSL -H "Authorization: token ${{ secrets.TOKEN }}" "$GITEA_API/repos/$owner/$repo/contents/README.md" || echo "{}")

              if echo "$readme_json" | jq -e '.content' >/dev/null 2>&1; then
                content=$(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=$(curl -s "https://osu.ppy.sh/api/get_user?k=${{ secrets.OSUAPIV1 }}&u=$osu_id&type=id")
                    pp_rank=$(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" >> "$user_rows_file"
                    printf "%s|   <a href=\"%s\"><img src=\"https://a.ppy.sh/%s\" width=175 height=175></a>\n" \
                      "$padded_rank" "$html_url" "$osu_id" >> "$avatar_rows_file"
                    total_valid_entries=$((total_valid_entries + 1))
                  fi
                fi
              fi
              j=$((j + 1))
            done
            i=$((i + 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: |
          echo "# osu! Swiss Community Skin collection" > "$README_PATH"
          echo "" >> "$README_PATH"
          echo "Welcome to the osu! Swiss Community Skin collection, this repository archives and showcases Skins osc members use." >> "$README_PATH"
          echo "" >> "$README_PATH"
          echo "Enjoy looking around, click file names to download the skins." >> "$README_PATH"
          echo "" >> "$README_PATH"
          echo "## How do I add my skins here?" >> "$README_PATH"
          echo "" >> "$README_PATH"
          echo "If you're interested in adding your skins here please follow this tutorial [how-to-use](/how-to-use.md)" >> "$README_PATH"
          echo "" >> "$README_PATH"
          echo "## Skins" >> "$README_PATH"
          echo "" >> "$README_PATH"
          echo "<details>" >> "$README_PATH"
          echo "  <summary>list instead of icons</summary>" >> "$README_PATH"
          echo "  <br>" >> "$README_PATH"
          echo "  <table border=\"1\" cellpadding=\"5\" cellspacing=\"0\">" >> "$README_PATH"
          echo "    <thead>" >> "$README_PATH"
          echo "      <tr>" >> "$README_PATH"
          echo "        <th>Name</th>" >> "$README_PATH"
          echo "        <th>Global Rank</th>" >> "$README_PATH"
          echo "        <th>Country Rank</th>" >> "$README_PATH"
          echo "        <th>Profile</th>" >> "$README_PATH"
          echo "        <th>Skins</th>" >> "$README_PATH"
          echo "      </tr>" >> "$README_PATH"
          echo "    </thead>" >> "$README_PATH"
          echo "    <tbody>" >> "$README_PATH"
          sort -t '|' -k1,1n "${{ steps.find_skins.outputs.user_rows_file }}" | cut -d'|' -f2- >> "$README_PATH"
          echo "    </tbody>" >> "$README_PATH"
          echo "  </table>" >> "$README_PATH"
          echo "</details>" >> "$README_PATH"
          echo "" >> "$README_PATH"
          echo "<p align=\"center\">" >> "$README_PATH"
          sort -t '|' -k1,1n "${{ steps.find_skins.outputs.avatar_rows_file }}" | cut -d'|' -f2- >> "$README_PATH"
          echo "</p>" >> "$README_PATH"
          rm -f "${{ steps.find_skins.outputs.user_rows_file }}" "${{ steps.find_skins.outputs.avatar_rows_file }}"
          echo "Generated skins section and updated '$README_PATH' successfully." >&2

      - 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