/**
 * API client utilities for CLI commands
 */

import { readConfig } from "./config.js";

export interface ApiClientError {
  code: string;
  message: string;
}

/**
 * Create an API client with the stored credentials
 * Throws an error if not logged in
 */
export const createApiClient = async () => {
  const config = await readConfig();
  if (!config) {
    throw new Error(
      "Not logged in. Run 'reviq bootstrap' or 'reviq auth login' first.",
    );
  }

  return {
    /**
     * Call an oRPC procedure
     */
    call: async <T>(path: string, input?: unknown): Promise<T> => {
      const url = `${config.apiUrl}/api/v1/rpc/${path}`;
      const response = await fetch(url, {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
          "X-API-Key": config.token,
        },
        body: input !== undefined ? JSON.stringify(input) : undefined,
      });

      if (!response.ok) {
        const text = await response.text();
        let errorMessage = `API error: ${String(response.status)} ${response.statusText}`;
        try {
          const error = JSON.parse(text) as ApiClientError;
          if (error.message) {
            errorMessage = error.message;
          }
        } catch {
          if (text) {
            errorMessage = text;
          }
        }
        throw new Error(errorMessage);
      }

      return response.json() as Promise<T>;
    },
    config,
  };
};

export type ApiClient = Awaited<ReturnType<typeof createApiClient>>;