name: Language Stats

on:
  schedule: [{cron: "0 0 * * *"}]
  workflow_dispatch:

jobs:
  language-stats:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4

      - name: Generate language SVG
        env:
          GH_TOKEN: ${{ secrets.METRICS_TOKEN }}
        run: |
          python3 << 'EOF'
          import urllib.request, json, math

          token = "${{ secrets.METRICS_TOKEN }}"
          headers = {"Authorization": f"Bearer {token}", "Accept": "application/vnd.github+json"}

          def get_repos(url):
              repos = []
              while url:
                  req = urllib.request.Request(url, headers=headers)
                  with urllib.request.urlopen(req) as r:
                      repos += json.loads(r.read())
                      link = r.headers.get('Link', '')
                      url = None
                      for part in link.split(','):
                          if 'rel="next"' in part:
                              url = part.split(';')[0].strip().strip('<>')
              return repos

          # все репы пользователя
          all_repos = []
          all_repos += get_repos("https://api.github.com/user/repos?per_page=100&affiliation=owner,collaborator,organization_member&visibility=all")

          repo_names = list({r['full_name'] for r in all_repos})
          print(f"Found {len(repo_names)} repositories")

          ignored = {'HTML', 'CSS', 'CMake', 'Dockerfile', 'Makefile', 'YAML', 'JSON',
                     'XML', 'Markdown', 'Text', 'SVG', 'Batchfile', 'PowerShell',
                     'EditorConfig', 'Ini', 'TOML', 'Nix', 'SCSS', 'GLSL'}
          skipped_repos = {'yawaflua/mt7902_temp'}
          colors = {
            'C#': '#178600', 'C++': '#f34b7d', 'JavaScript': '#f1e05a',
            'TypeScript': '#3178c6', 'Go': '#00ADD8', 'Python': '#3572A5',
            'Java': '#b07219', 'Vue': '#41b883', 'Shell': '#89e051'
          }

          langs = {}
          for repo in repo_names:
              if repo in skipped_repos:
                  continue
              try:
                  req = urllib.request.Request(f"https://api.github.com/repos/{repo}/languages", headers=headers)
                  with urllib.request.urlopen(req) as r:
                      data = json.loads(r.read())
                  for lang, bytes_ in data.items():
                      if lang not in ignored:
                          langs[lang] = langs.get(lang, 0) + bytes_
              except Exception as e:
                  print(f"Skip {repo}: {e}")

          langs = dict(sorted(langs.items(), key=lambda x: x[1], reverse=True)[:10])
          total = sum(langs.values())

          if total == 0:
              print("No data")
              exit(1)

          bar_width = 448
          row_h = 30
          padding = 16
          bar_h = 8
          header_h = 44
          height = header_h + bar_h + padding + math.ceil(len(langs) / 2) * row_h + padding * 2

          svg = f'<svg xmlns="http://www.w3.org/2000/svg" width="480" height="{height}" style="font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;font-size:13px;">\n'
          svg += f'<rect width="480" height="{height}" rx="6" fill="#fff" stroke="#e1e4e8"/>\n'
          svg += f'<text x="16" y="28" font-size="15" font-weight="600" fill="#24292e">Most used languages</text>\n'

          cx = 0
          for lang, count in langs.items():
              w = count / total * bar_width
              color = colors.get(lang, '#ededed')
              svg += f'<rect x="{16 + cx:.2f}" y="{header_h}" width="{w:.2f}" height="{bar_h}" fill="{color}"/>\n'
              cx += w

          for i, (lang, count) in enumerate(langs.items()):
              col = i % 2
              row = i // 2
              lx = 16 + col * 232
              ly = header_h + bar_h + padding + row * row_h + 14
              pct = count / total * 100
              color = colors.get(lang, '#ededed')
              svg += f'<circle cx="{lx + 6}" cy="{ly - 4}" r="6" fill="{color}"/>\n'
              svg += f'<text x="{lx + 18}" y="{ly}" fill="#24292e" font-size="12">{lang}</text>\n'
              svg += f'<text x="{lx + 18}" y="{ly + 14}" fill="#586069" font-size="11">{pct:.1f}%</text>\n'

          svg += '</svg>'

          with open('languages.svg', 'w') as f:
              f.write(svg)
          print(f"Done: {len(langs)} languages, {total} bytes total")
          for l, b in langs.items():
              print(f"  {l}: {b/total*100:.1f}%")
          EOF

      - name: Commit SVG
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add languages.svg
          git diff --staged --quiet || git commit -m "Update languages.svg - [Skip GitHub Action]"
          git push