/**
 * Dynamic Section Registry & Metadata Generator.
 * Safe for client and server components.
 */
export interface SectionConfig {
  id: string;
  label: string;
  icon: string;
  desc: string;
}

export const SECTION_PRESETS: Record<string, { label: string; icon: string; desc: string }> = {
  docs: {
    label: "Documentation",
    icon: "📄",
    desc: "Setup guides, API references, and protocol specs.",
  },
  writeups: {
    label: "Writeups",
    icon: "📝",
    desc: "Post-mortems, CTF writeups, debugging stories, and case studies.",
  },
  research: {
    label: "Research",
    icon: "🔬",
    desc: "Deep-dive analysis, architecture notes, and experiments.",
  },
  notes: {
    label: "Notes",
    icon: "📌",
    desc: "Quick references, patterns, and cheat-sheets.",
  },
  guides: {
    label: "Guides",
    icon: "🧭",
    desc: "Step-by-step guides and implementation walkthroughs.",
  },
  tutorials: {
    label: "Tutorials",
    icon: "🎓",
    desc: "Educational lessons and practical tutorials.",
  },
  ctf: {
    label: "CTF",
    icon: "🚩",
    desc: "Capture The Flag challenge writeups and exploit solutions.",
  },
  api: {
    label: "API",
    icon: "⚡",
    desc: "API documentation and endpoint definitions.",
  },
  projects: {
    label: "Projects",
    icon: "🚀",
    desc: "Project overviews and technical architecture roadmaps.",
  },
};

export function getSectionMeta(id: string, count?: number): SectionConfig {
  const cleanId = (id || "docs").toLowerCase().trim();
  if (SECTION_PRESETS[cleanId]) {
    return { id: cleanId, ...SECTION_PRESETS[cleanId] };
  }
  const formattedLabel = cleanId
    .split(/[-_]/)
    .map((w) => (w ? w.charAt(0).toUpperCase() + w.slice(1) : ""))
    .join(" ");
  return {
    id: cleanId,
    label: formattedLabel || "Custom Section",
    icon: "📁",
    desc: `Documents in the ${formattedLabel || cleanId} section.`,
  };
}

export const DEFAULT_SECTIONS: SectionConfig[] = [
  getSectionMeta("docs"),
  getSectionMeta("writeups"),
  getSectionMeta("research"),
  getSectionMeta("notes"),
];

// Backwards-compatible constants:
export const SECTIONS: SectionConfig[] = DEFAULT_SECTIONS;
export const SECTIONS_BY_ID = new Map(SECTIONS.map((s) => [s.id, s]));
export const SECTION_IDS = SECTIONS.map((s) => s.id);