package wallet

import (
	"context"
	"database/sql"
	"time"

	"github.com/ethereum/go-ethereum/event"
	"github.com/ethereum/go-ethereum/log"
	"github.com/ethereum/go-ethereum/p2p"
	gethrpc "github.com/ethereum/go-ethereum/rpc"

	"github.com/status-im/status-go/account"
	"github.com/status-im/status-go/multiaccounts/accounts"
	"github.com/status-im/status-go/params"
	"github.com/status-im/status-go/rpc"
	"github.com/status-im/status-go/services/ens"
	"github.com/status-im/status-go/services/stickers"
	"github.com/status-im/status-go/services/wallet/collectibles"
	"github.com/status-im/status-go/services/wallet/currency"
	"github.com/status-im/status-go/services/wallet/history"
	"github.com/status-im/status-go/services/wallet/market"
	"github.com/status-im/status-go/services/wallet/thirdparty"
	"github.com/status-im/status-go/services/wallet/thirdparty/coingecko"
	"github.com/status-im/status-go/services/wallet/thirdparty/cryptocompare"
	"github.com/status-im/status-go/services/wallet/thirdparty/opensea"
	"github.com/status-im/status-go/services/wallet/token"
	"github.com/status-im/status-go/services/wallet/transfer"
	"github.com/status-im/status-go/services/wallet/walletevent"
	"github.com/status-im/status-go/transactions"
)

type Connection struct {
	Up            bool  `json:"up"`
	LastCheckedAt int64 `json:"lastCheckedAt"`
}

type ConnectedResult struct {
	Blockchains  map[uint64]Connection `json:"blockchains"`
	Market       Connection            `json:"market"`
	Collectibles map[uint64]Connection `json:"collectibles"`
}

// NewService initializes service instance.
func NewService(
	db *sql.DB,
	accountsDB *accounts.Database,
	rpcClient *rpc.Client,
	accountFeed *event.Feed,
	openseaAPIKey string,
	gethManager *account.GethManager,
	transactor *transactions.Transactor,
	config *params.NodeConfig,
	ens *ens.Service,
	stickers *stickers.Service,
	nftMetadataProvider thirdparty.NFTMetadataProvider,
) *Service {
	cryptoOnRampManager := NewCryptoOnRampManager(&CryptoOnRampOptions{
		dataSourceType: DataSourceStatic,
	})
	walletFeed := &event.Feed{}
	signals := &walletevent.SignalsTransmitter{
		Publisher: walletFeed,
	}
	tokenManager := token.NewTokenManager(db, rpcClient, rpcClient.NetworkManager)
	savedAddressesManager := &SavedAddressesManager{db: db}
	transactionManager := transfer.NewTransactionManager(db, gethManager, transactor, config, accountsDB)
	transferController := transfer.NewTransferController(db, rpcClient, accountFeed, walletFeed, transactionManager)
	cryptoCompare := cryptocompare.NewClient()
	coingecko := coingecko.NewClient()
	marketManager := market.NewManager(cryptoCompare, coingecko)
	reader := NewReader(rpcClient, tokenManager, marketManager, accountsDB, walletFeed)
	history := history.NewService(db, walletFeed, rpcClient, tokenManager, marketManager)
	currency := currency.NewService(db, walletFeed, tokenManager, marketManager)
	collectiblesManager := collectibles.NewManager(rpcClient, nftMetadataProvider, openseaAPIKey)
	return &Service{
		db:                    db,
		accountsDB:            accountsDB,
		rpcClient:             rpcClient,
		tokenManager:          tokenManager,
		savedAddressesManager: savedAddressesManager,
		transactionManager:    transactionManager,
		transferController:    transferController,
		cryptoOnRampManager:   cryptoOnRampManager,
		collectiblesManager:   collectiblesManager,
		feesManager:           &FeeManager{rpcClient},
		gethManager:           gethManager,
		marketManager:         marketManager,
		transactor:            transactor,
		ens:                   ens,
		stickers:              stickers,
		feed:                  accountFeed,
		signals:               signals,
		reader:                reader,
		history:               history,
		currency:              currency,
	}
}

// Service is a wallet service.
type Service struct {
	db                    *sql.DB
	accountsDB            *accounts.Database
	rpcClient             *rpc.Client
	savedAddressesManager *SavedAddressesManager
	tokenManager          *token.Manager
	transactionManager    *transfer.TransactionManager
	cryptoOnRampManager   *CryptoOnRampManager
	transferController    *transfer.Controller
	feesManager           *FeeManager
	marketManager         *market.Manager
	started               bool
	collectiblesManager   *collectibles.Manager
	gethManager           *account.GethManager
	transactor            *transactions.Transactor
	ens                   *ens.Service
	stickers              *stickers.Service
	feed                  *event.Feed
	signals               *walletevent.SignalsTransmitter
	reader                *Reader
	history               *history.Service
	currency              *currency.Service
}

// Start signals transmitter.
func (s *Service) Start() error {
	s.transferController.Start()
	s.currency.Start()
	err := s.signals.Start()
	s.history.Start()
	s.started = true
	return err
}

// GetFeed returns signals feed.
func (s *Service) GetFeed() *event.Feed {
	return s.transferController.TransferFeed
}

// Stop reactor and close db.
func (s *Service) Stop() error {
	log.Info("wallet will be stopped")
	s.signals.Stop()
	s.transferController.Stop()
	s.currency.Stop()
	s.reader.Stop()
	s.history.Stop()
	s.started = false
	log.Info("wallet stopped")
	return nil
}

// APIs returns list of available RPC APIs.
func (s *Service) APIs() []gethrpc.API {
	return []gethrpc.API{
		{
			Namespace: "wallet",
			Version:   "0.1.0",
			Service:   NewAPI(s),
			Public:    true,
		},
	}
}

// Protocols returns list of p2p protocols.
func (s *Service) Protocols() []p2p.Protocol {
	return nil
}

func (s *Service) IsStarted() bool {
	return s.started
}

func (s *Service) CheckConnected(ctx context.Context) *ConnectedResult {
	networks, err := s.rpcClient.NetworkManager.Get(false)
	blockchains := make(map[uint64]Connection)
	if err == nil {
		for _, network := range networks {
			ethClient, err := s.rpcClient.EthClient(network.ChainID)
			if err != nil {
				blockchains[network.ChainID] = Connection{
					Up:            true,
					LastCheckedAt: time.Now().Unix(),
				}
			}
			blockchains[network.ChainID] = Connection{
				Up:            ethClient.IsConnected,
				LastCheckedAt: ethClient.LastCheckedAt,
			}
		}
	}

	collectibles := make(map[uint64]Connection)
	for chainID, client := range opensea.OpenseaClientInstances {
		collectibles[chainID] = Connection{
			Up:            client.IsConnected,
			LastCheckedAt: client.LastCheckedAt,
		}
	}
	return &ConnectedResult{
		Blockchains:  blockchains,
		Collectibles: collectibles,
		Market: Connection{
			Up:            s.marketManager.IsConnected,
			LastCheckedAt: s.marketManager.LastCheckedAt,
		},
	}
}