import { createContext, useContext } from 'react';

export interface SiweValue {
  user: string | null;          // lowercase address when logged in
  isConnected: boolean;
  address?: `0x${string}`;
  loading: boolean;
  error: string | null;
  login: () => Promise<void>;
  logout: () => Promise<void>;
}

export const SiweContext = createContext<SiweValue | null>(null);

// Kept in a non-component module so the provider file only exports a component
// (satisfies react-refresh/only-export-components → preserves fast refresh).
export function useSiweAuth(): SiweValue {
  const ctx = useContext(SiweContext);
  if (!ctx) throw new Error('useSiweAuth must be used within SiweAuthProvider');
  return ctx;
}