import { useState, useCallback } from 'react';
import { useDubs } from '../provider';
import { signAndSendBase64Transaction } from '../utils/transaction';
import type { CreateCustomGameParams, MutationStatus } from '../types';

export interface CreateCustomGameMutationResult {
  gameId: string;
  gameAddress: string;
  signature: string;
  explorerUrl: string;
  buyIn: number;
}

export function useCreateCustomGame() {
  const { client, wallet, connection } = useDubs();
  const [status, setStatus] = useState<MutationStatus>('idle');
  const [error, setError] = useState<Error | null>(null);
  const [data, setData] = useState<CreateCustomGameMutationResult | null>(null);

  const reset = useCallback(() => {
    setStatus('idle');
    setError(null);
    setData(null);
  }, []);

  const execute = useCallback(async (params: CreateCustomGameParams): Promise<CreateCustomGameMutationResult> => {
    setStatus('building');
    setError(null);
    setData(null);

    try {
      // 1. Build unsigned transaction
      console.log('[useCreateCustomGame] Step 1: Building transaction...');
      const createResult = await client.createCustomGame(params);
      console.log('[useCreateCustomGame] Step 1 done:', { gameId: createResult.gameId, gameAddress: createResult.gameAddress });

      // 2. Sign and send transaction
      setStatus('signing');
      console.log('[useCreateCustomGame] Step 2: Signing and sending...');
      const signature = await signAndSendBase64Transaction(
        createResult.transaction,
        wallet,
        connection,
      );
      console.log('[useCreateCustomGame] Step 2 done. Signature:', signature);

      // 3. Confirm with backend
      setStatus('confirming');
      console.log('[useCreateCustomGame] Step 3: Confirming with backend...');
      const confirmResult = await client.confirmCustomGame({
        gameId: createResult.gameId,
        playerWallet: params.playerWallet,
        signature,
        teamChoice: params.teamChoice,
        wagerAmount: params.wagerAmount,
        role: 'creator',
        gameAddress: createResult.gameAddress,
      });
      console.log('[useCreateCustomGame] Step 3 done.');

      const result: CreateCustomGameMutationResult = {
        gameId: createResult.gameId,
        gameAddress: createResult.gameAddress,
        signature,
        explorerUrl: confirmResult.explorerUrl,
        buyIn: params.wagerAmount,
      };

      setData(result);
      setStatus('success');
      console.log('[useCreateCustomGame] Complete!');
      return result;
    } catch (err) {
      console.error('[useCreateCustomGame] FAILED:', err);
      const error = err instanceof Error ? err : new Error(String(err));
      setError(error);
      setStatus('error');
      throw error;
    }
  }, [client, wallet]);

  return { execute, status, error, data, reset };
}