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import { renderUiView } from "@/client/server/render";
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import { escapeHtml } from "@/shared/web/format";
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import { isHttpError } from "@/shared/web/http";
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export async function handleError(
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  env: Env,
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  error: unknown,
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  fallbackTitle: string,
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  extra?: {
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    owner?: string;
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    repo?: string;
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    refEnc?: string;
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    path?: string;
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  }
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): Promise<Response> {
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  const debug = String(env.LOG_LEVEL || "").toLowerCase() === "debug";
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  const httpError = isHttpError(error) ? error : undefined;
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  const status =
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    httpError?.status ?? (/not found/i.test(String((error as any)?.message)) ? 404 : 500);
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  try {
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    const html = await renderUiView(env, "error", {
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      title: fallbackTitle,
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      message: String((error as any)?.message || error),
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      owner: extra?.owner,
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      repo: extra?.repo,
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      refEnc: extra?.refEnc,
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      path: extra?.path,
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      stack: debug ? String((error as any)?.stack || "") : undefined,
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    });
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    if (html) {
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      return new Response(html, {
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        status,
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        headers: { "Content-Type": "text/html; charset=utf-8" },
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      });
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    }
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  } catch {}
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  return new Response(
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    `<h2>Error</h2><pre>${escapeHtml(String((error as any)?.message || error))}</pre>`,
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    {
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      status,
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      headers: { "Content-Type": "text/html; charset=utf-8" },
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    }
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  );
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}