Function extractReadingStats

Source

export function extractReadingStats(manga: KenmeiManga[]): {
  totalChapters: number;
  totalVolumes: number;
  completedManga: number;
  inProgressManga: number;
  statusBreakdown: Record<string, number>;
} {
  let totalChapters = 0;
  let totalVolumes = 0;
  let completedManga = 0;
  let inProgressManga = 0;
  const statusBreakdown: Record<string, number> = {};

  for (const entry of manga) {
    totalChapters += entry.chapters_read ?? 0;
    totalVolumes += entry.volumes_read ?? 0;

    if (entry.status === "completed") {
      completedManga++;
    }
    if (entry.status === "reading") {
      inProgressManga++;
    }

    statusBreakdown[entry.status] = (statusBreakdown[entry.status] || 0) + 1;
  }

  return {
    totalChapters,
    totalVolumes,
    completedManga,
    inProgressManga,
    statusBreakdown,
  };
}
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