import type { ServerProviderSkill } from "@t3tools/contracts";

function titleCaseWords(value: string): string {
  const words: string[] = [];
  for (const segment of value.split(/[\s:_-]+/)) {
    if (segment.length === 0) continue;
    words.push(segment.charAt(0).toUpperCase() + segment.slice(1));
  }
  return words.join(" ");
}

function normalizePathSeparators(pathValue: string): string {
  return pathValue.replaceAll("\\", "/");
}

export function formatProviderSkillDisplayName(
  skill: Pick<ServerProviderSkill, "name" | "displayName">,
): string {
  const displayName = skill.displayName?.trim();
  if (displayName) {
    return displayName;
  }
  return titleCaseWords(skill.name);
}

export function formatProviderSkillInstallSource(
  skill: Pick<ServerProviderSkill, "path" | "scope">,
): string | null {
  const normalizedPath = normalizePathSeparators(skill.path);
  if (normalizedPath.includes("/.codex/plugins/") || normalizedPath.includes("/.agents/plugins/")) {
    return "App";
  }

  const normalizedScope = skill.scope?.trim().toLowerCase();
  if (normalizedScope === "system") {
    return "System";
  }
  if (
    normalizedScope === "project" ||
    normalizedScope === "workspace" ||
    normalizedScope === "local"
  ) {
    return "Project";
  }
  if (normalizedScope === "user" || normalizedScope === "personal") {
    return "Personal";
  }
  if (normalizedScope) {
    return titleCaseWords(normalizedScope);
  }

  return null;
}