package protocol

import (
	"database/sql"
	"encoding/json"

	"github.com/status-im/status-go/rpc"
	"github.com/status-im/status-go/server"
	"github.com/status-im/status-go/services/browsers"

	"go.uber.org/zap"

	"github.com/status-im/status-go/appdatabase/migrations"
	"github.com/status-im/status-go/multiaccounts"
	"github.com/status-im/status-go/multiaccounts/accounts"
	"github.com/status-im/status-go/multiaccounts/settings"
	"github.com/status-im/status-go/params"
	"github.com/status-im/status-go/protocol/anonmetrics"
	"github.com/status-im/status-go/protocol/common"
	"github.com/status-im/status-go/protocol/communities"
	"github.com/status-im/status-go/protocol/discord"
	"github.com/status-im/status-go/protocol/protobuf"
	"github.com/status-im/status-go/protocol/pushnotificationclient"
	"github.com/status-im/status-go/protocol/pushnotificationserver"
	"github.com/status-im/status-go/protocol/transport"
	"github.com/status-im/status-go/services/mailservers"
)

type MessageDeliveredHandler func(string, string)

type MessengerSignalsHandler interface {
	MessageDelivered(chatID string, messageID string)
	CommunityInfoFound(community *communities.Community)
	MessengerResponse(response *MessengerResponse)
	HistoryRequestStarted(requestID string, numBatches int)
	HistoryRequestBatchProcessed(requestID string, batchIndex int, batchNum int)
	HistoryRequestCompleted(requestID string)
	HistoryRequestFailed(requestID string, err error)
	BackupPerformed(uint64)
	HistoryArchivesProtocolEnabled()
	HistoryArchivesProtocolDisabled()
	CreatingHistoryArchives(communityID string)
	NoHistoryArchivesCreated(communityID string, from int, to int)
	HistoryArchivesCreated(communityID string, from int, to int)
	HistoryArchivesSeeding(communityID string)
	HistoryArchivesUnseeded(communityID string)
	HistoryArchiveDownloaded(communityID string, from int, to int)
	StatusUpdatesTimedOut(statusUpdates *[]UserStatus)
	DiscordCategoriesAndChannelsExtracted(categories []*discord.Category, channels []*discord.Channel, oldestMessageTimestamp int64, errors map[string]*discord.ImportError)
}

type config struct {
	// This needs to be exposed until we move here mailserver logic
	// as otherwise the client is not notified of a new filter and
	// won't be pulling messages from mailservers until it reloads the chats/filters
	onContactENSVerified func(*MessengerResponse)

	// systemMessagesTranslations holds translations for system-messages
	systemMessagesTranslations *systemMessageTranslationsMap
	// Config for the envelopes monitor
	envelopesMonitorConfig *transport.EnvelopesMonitorConfig

	featureFlags common.FeatureFlags

	// A path to a database or a database instance is required.
	// The database instance has a higher priority.
	dbConfig            dbConfig
	db                  *sql.DB
	afterDbCreatedHooks []Option
	multiAccount        *multiaccounts.Database
	mailserversDatabase *mailservers.Database
	account             *multiaccounts.Account
	clusterConfig       params.ClusterConfig
	browserDatabase     *browsers.Database
	torrentConfig       *params.TorrentConfig
	httpServer          *server.MediaServer
	rpcClient           *rpc.Client

	verifyTransactionClient  EthClient
	verifyENSURL             string
	verifyENSContractAddress string

	anonMetricsClientConfig *anonmetrics.ClientConfig
	anonMetricsServerConfig *anonmetrics.ServerConfig

	pushNotificationServerConfig *pushnotificationserver.Config
	pushNotificationClientConfig *pushnotificationclient.Config

	logger *zap.Logger

	messengerSignalsHandler MessengerSignalsHandler

	telemetryServerURL string
}

type Option func(*config) error

// WithSystemMessagesTranslations is required for Group Chats which are currently disabled.
// nolint: unused
func WithSystemMessagesTranslations(t map[protobuf.MembershipUpdateEvent_EventType]string) Option {
	return func(c *config) error {
		c.systemMessagesTranslations.Init(t)
		return nil
	}
}

func WithCustomLogger(logger *zap.Logger) Option {
	return func(c *config) error {
		c.logger = logger
		return nil
	}
}

func WithDatabaseConfig(dbPath, dbKey string) Option {
	return func(c *config) error {
		c.dbConfig = dbConfig{dbPath: dbPath, dbKey: dbKey}
		return nil
	}
}

func WithVerifyTransactionClient(client EthClient) Option {
	return func(c *config) error {
		c.verifyTransactionClient = client
		return nil
	}
}

func WithDatabase(db *sql.DB) Option {
	return func(c *config) error {
		c.db = db
		return nil
	}
}

func WithToplevelDatabaseMigrations() Option {
	return func(c *config) error {
		c.afterDbCreatedHooks = append(c.afterDbCreatedHooks, func(c *config) error {
			return migrations.Migrate(c.db)
		})
		return nil
	}
}

func WithAppSettings(s settings.Settings, nc params.NodeConfig) Option {
	return func(c *config) error {
		c.afterDbCreatedHooks = append(c.afterDbCreatedHooks, func(c *config) error {
			if s.Networks == nil {
				networks := new(json.RawMessage)
				if err := networks.UnmarshalJSON([]byte("net")); err != nil {
					return err
				}

				s.Networks = networks
			}

			sDB, err := accounts.NewDB(c.db)
			if err != nil {
				return err
			}
			return sDB.CreateSettings(s, nc)
		})
		return nil
	}
}

func WithMultiAccounts(ma *multiaccounts.Database) Option {
	return func(c *config) error {
		c.multiAccount = ma
		return nil
	}
}

func WithMailserversDatabase(ma *mailservers.Database) Option {
	return func(c *config) error {
		c.mailserversDatabase = ma
		return nil
	}
}

func WithAccount(acc *multiaccounts.Account) Option {
	return func(c *config) error {
		c.account = acc
		return nil
	}
}

func WithBrowserDatabase(bd *browsers.Database) Option {
	return func(c *config) error {
		c.browserDatabase = bd
		if c.browserDatabase == nil {
			c.afterDbCreatedHooks = append(c.afterDbCreatedHooks, func(c *config) error {
				c.browserDatabase = browsers.NewDB(c.db)
				return nil
			})
		}
		return nil
	}
}

func WithAnonMetricsClientConfig(anonMetricsClientConfig *anonmetrics.ClientConfig) Option {
	return func(c *config) error {
		c.anonMetricsClientConfig = anonMetricsClientConfig
		return nil
	}
}

func WithAnonMetricsServerConfig(anonMetricsServerConfig *anonmetrics.ServerConfig) Option {
	return func(c *config) error {
		c.anonMetricsServerConfig = anonMetricsServerConfig
		return nil
	}
}

func WithTelemetry(serverURL string) Option {
	return func(c *config) error {
		c.telemetryServerURL = serverURL
		return nil
	}
}

func WithPushNotificationServerConfig(pushNotificationServerConfig *pushnotificationserver.Config) Option {
	return func(c *config) error {
		c.pushNotificationServerConfig = pushNotificationServerConfig
		return nil
	}
}

func WithPushNotificationClientConfig(pushNotificationClientConfig *pushnotificationclient.Config) Option {
	return func(c *config) error {
		c.pushNotificationClientConfig = pushNotificationClientConfig
		return nil
	}
}

func WithDatasync() func(c *config) error {
	return func(c *config) error {
		c.featureFlags.Datasync = true
		return nil
	}
}

func WithPushNotifications() func(c *config) error {
	return func(c *config) error {
		c.featureFlags.PushNotifications = true
		return nil
	}
}

func WithEnvelopesMonitorConfig(emc *transport.EnvelopesMonitorConfig) Option {
	return func(c *config) error {
		c.envelopesMonitorConfig = emc
		return nil
	}
}

func WithSignalsHandler(h MessengerSignalsHandler) Option {
	return func(c *config) error {
		c.messengerSignalsHandler = h
		return nil
	}
}

func WithENSVerificationConfig(onENSVerified func(*MessengerResponse), url, address string) Option {
	return func(c *config) error {
		c.onContactENSVerified = onENSVerified
		c.verifyENSURL = url
		c.verifyENSContractAddress = address
		return nil
	}
}

func WithClusterConfig(cc params.ClusterConfig) Option {
	return func(c *config) error {
		c.clusterConfig = cc
		return nil
	}
}

func WithTorrentConfig(tc *params.TorrentConfig) Option {
	return func(c *config) error {
		c.torrentConfig = tc
		return nil
	}
}

func WithHTTPServer(s *server.MediaServer) Option {
	return func(c *config) error {
		c.httpServer = s
		return nil
	}
}

func WithRPCClient(r *rpc.Client) Option {
	return func(c *config) error {
		c.rpcClient = r
		return nil
	}
}