import { createContentLoader } from "vitepress";

interface ProjectLink {
  label: string;
  url: string;
}

interface CVItemData {
  section: "education" | "work-experience" | "projects";
  institution?: string;
  degree?: string;
  company?: string;
  position?: string;
  title?: string;

  links?: ProjectLink[];
  technologies?: string[];

  start: string;
  end?: string;
  startValue: number;
  endValue?: number;
  excerpt?: string;
  url: string;
  body?: string;
}
declare const data: CVItemData[];
export { data };

export default createContentLoader("cv/*.md", {
  excerpt: true,
  transform(raw) {
    return raw.map(({ frontmatter, url, excerpt: autoExcerpt }) => {
      const section = frontmatter.section as CVItemData["section"];
      const startRaw = frontmatter.start as string;
      const endRaw = (frontmatter.end as string) || "";

      const startValue = parseMonthYear(startRaw);
      const endValue =
        endRaw.toLowerCase() === "present" ? Infinity : parseMonthYear(endRaw);

      const finalExcerpt = frontmatter.excerpt || autoExcerpt || "";

      const links = frontmatter.links ?? [];
      const technologies = frontmatter.technologies ?? [];

      return {
        ...frontmatter,
        section,
        url,
        excerpt: finalExcerpt,
        start: startRaw,
        end: endRaw,
        startValue,
        endValue,
        links,
        technologies,
      };
    }) as CVItemData[];
  },
});

function parseMonthYear(str: string): number {
  if (!str) return 0;
  const [mm, yyyy] = str.split("/");
  const month = parseInt(mm, 10);
  const year = parseInt(yyyy, 10);
  if (isNaN(month) || isNaN(year)) return 0;
  return year * 100 + month;
}