import { vi } from 'vitest';
import type { AppSupabaseClient } from '../../supabase/client';

export interface MockedRpcCall { name: string; params: unknown }

export interface MockClient {
  client: AppSupabaseClient;
  rpcCalls: MockedRpcCall[];
  setRpcResponse: (name: string, response: { data?: unknown; error?: unknown }) => void;
}

export function makeMockClient(initialUserId = '11111111-1111-1111-1111-111111111111'): MockClient {
  const rpcCalls: MockedRpcCall[] = [];
  const rpcResponses = new Map<string, { data?: unknown; error?: unknown }>();
  const client = {
    auth: {
      getUser: vi.fn().mockResolvedValue({ data: { user: { id: initialUserId } }, error: null }),
    },
    rpc: vi.fn().mockImplementation((name: string, params: unknown) => {
      rpcCalls.push({ name, params });
      const r = rpcResponses.get(name) ?? { data: null, error: null };
      return Promise.resolve(r);
    }),
  } as unknown as AppSupabaseClient;
  return {
    client,
    rpcCalls,
    setRpcResponse: (name, response) => rpcResponses.set(name, response),
  };
}