"use client";

export class ApiError extends Error {
  status: number;
  payload: unknown;

  constructor(message: string, status: number, payload: unknown = null) {
    super(message);
    this.status = status;
    this.payload = payload;
  }
}

async function parseResponse<T>(res: Response): Promise<T> {
  const contentType = res.headers.get("content-type") || "";
  const isJson = contentType.includes("application/json");
  const payload = isJson ? await res.json() : await res.text();

  if (!res.ok) {
    const message =
      (typeof payload === "object" &&
        payload &&
        "error" in payload &&
        typeof (payload as { error?: unknown }).error === "string" &&
        (payload as { error: string }).error) ||
      `Erro HTTP ${res.status}`;
    throw new ApiError(message, res.status, payload);
  }
  return payload as T;
}

export async function apiGet<T>(url: string): Promise<T> {
  const res = await fetch(url, {
    method: "GET",
    credentials: "include",
    cache: "no-store",
  });
  return parseResponse<T>(res);
}

export async function apiPostJson<T>(url: string, body: unknown): Promise<T> {
  const res = await fetch(url, {
    method: "POST",
    credentials: "include",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify(body),
  });
  return parseResponse<T>(res);
}

export async function apiPostFormData<T>(url: string, body: FormData): Promise<T> {
  const res = await fetch(url, {
    method: "POST",
    credentials: "include",
    body,
  });
  return parseResponse<T>(res);
}