package blockchain

import (
	"fmt"
	"sync"
)

type IChainServer interface {
	AddAddress(address string, msg any) error
	RemoveAddress(address string) error
	Listen(symbol string, ch chan any)
	Transfer(symbol string, msg any) error
	Stop()
}

type BlockChainServer struct {
	mu     sync.Mutex
	chains map[string]IChainServer // "ETH", "TRON", "BTC"
}

func NewBlockChainServer() *BlockChainServer {
	return &BlockChainServer{
		chains: make(map[string]IChainServer),
	}
}

func (b *BlockChainServer) RegisterChain(name string, chain IChainServer) {
	b.mu.Lock()
	defer b.mu.Unlock()
	b.chains[name] = chain
}

func (b *BlockChainServer) AddAddress(chain, address string, msg any) error {
	if srv, ok := b.chains[chain]; ok {
		srv.AddAddress(address, msg)
		fmt.Printf("✅ 添加监听地址: chain=%s, address=%s\n", chain, address)
		return nil
	} else {
		return fmt.Errorf("⚠️ 链未注册: %s\n", chain)
	}
}

func (b *BlockChainServer) RemoveAddress(chain, address string) error {
	if srv, ok := b.chains[chain]; ok {
		srv.RemoveAddress(address)
		fmt.Printf("🗑️ 移除监听地址: chain=%s, address=%s\n", chain, address)
		return nil
	} else {
		return fmt.Errorf("⚠️ 链未注册: %s\n", chain)
	}
}

func (b *BlockChainServer) Listen(chain, symbol string, ch chan any) error {
	if srv, ok := b.chains[chain]; ok {
		go func() {
			srv.Listen(symbol, ch)
		}()
		return nil
	}
	return fmt.Errorf("链未注册: %s", chain)
}

func (b *BlockChainServer) Transfer(chain, symbol string, msg any) error {
	if srv, ok := b.chains[chain]; ok {
		fmt.Printf("💸 %s-%s发起转账: %+v\n", chain, symbol, msg)
		return srv.Transfer(symbol, msg)
	}
	return fmt.Errorf("链未注册: %s", chain)
}

func (b *BlockChainServer) Stop(chain string) {
	if srv, ok := b.chains[chain]; ok {
		fmt.Printf("💸 关闭服务: %+v\n", chain)
		srv.Stop()
	}
	fmt.Printf("链未注册: %s", chain)
}