#pragma once

#include "sad_DetectedServer.hpp"
#include "spit_object.hpp"
#include "spit_player.hpp"
#include "spit_socket.hpp"
#include "spit_type.hpp"
#include "spit_message.hpp"
#include "spit_repo.hpp"
#include <memory>
#include <vector>
#include <functional>
#include "syslog.hpp"

using namespace std;

namespace spit {

class SClient : ISadClient {
  public:
    /** Maximal length of a SPITMessage*/
    static const int MAXSPITMESSAGEBYTECOUNT = 512;

    enum class ProjUpdate {
        ServerLoaded,
        StartTransfer,
        EndTransfer,
        ServerClosed,
    };
    enum class ServerEvent {
        Detect,
        Lost,
        Changed,
    };
    enum class ObjectEvent {
        Created,
        Changed,
        Deleted
    };
    enum class Connection {
        None = 0,          // No Connection established.<br>Either no connect tried or disconnected
        NoneServer = 1,    // Server has disconnected
        Lost = 2,          // The connection is lost<br>Either because of a network crash or because the server no longer responds.
        Ok = 3,            // Connection to the serv er is established.
        TryConnection = 4, // A connection to the server is tried.
    };

    struct Callbacks {
        function<void(ServerEvent event, const SadDetectedServer &detectedServer)> onServerEvent;
        function<void(string serverID, string serverComputerName, string serverName, int serverStepTime, Connection connectionStatus, Connection oldConnectionStatus)> onConnectionStatus;
        function<void(ProjUpdate state, string projectId)> onProjectUpdate;
        function<void(ObjectEvent event, bool isRemote, const SType &spitType)> onSpitType;
        function<void(ObjectEvent event, bool isRemote, const SType &spitType, const SObject &spitObject)> onSpitObject;
        function<void(string playerID, string playerName, char playerType, bool playerIsRunning, uint64_t timeFrames)> onPlay;
        function<void(string playerID, string spitTypeID, bool playerIsRunning, bool started, bool ended, double value)> onPlaySpitType;
        function<void(const SType &spitType, const SObject &spitObject, uint64_t p_FrameInsideObject, int value)> onPlayRemoteObjectStatus;
        function<bool(bool knownType, bool createdByClient)> onCheckSpitTypeVeto;
        function<bool(bool knownType)> onCheckSpitObjectVeto;
    };

    //------ PlayerType ------
  public:
    /** continous main player, time value can be used like a timecode.<br>The time value is the position in server's project.<br>A server should use only one main player.*/
    static constexpr char PLAYERTYPE_MAIN = 0x02;
    /** continous player. This player plays SPIT objects sometime during the project.*/
    static constexpr char PLAYERTYPE_CONTINOUS = 0x01;
    /** diescrete player. This player is used to transmit single discrete values.*/
    static constexpr char PLAYERTYPE_DISCRETE = 0x00;

    //------ Value Flag ------
    //------ used by sendRemoteObject
  public:
    /**Set the given value directly*/
    static constexpr char VALUEFLAG_DIRECT = 0x00;
    /**Increase the existing value by the given value.<br>This is usefull e.g. when instead of a fader a endless wheel is used*/
    static constexpr char VALUEFLAG_INCREASE = 0x01;
    /**Decrease the existing value by the given value.<br>This is usefull e.g. when instead of a fader a endless wheel is used*/
    static constexpr char VALUEFLAG_DECREASE = 0x02;
    static constexpr int MAX_OVERTAKING_SPIT_MESSAGES = 10;

    //----- SClient -----
  public:
    SClient(string name, string projName, ISocket &socket, Callbacks calls);
    virtual ~SClient();

  private:
    Callbacks mCallbacks;

    fos::TaskT<SClient &> *mThreadReceive{};
    fos::TaskT<SClient &> *mThreadProcess{};
    bool mStopReceiveMessages{};

    Connection mConnectionStatus{Connection::None};
    bool mDisconnectedByServer{}; // flag true = when server disconnects
    string mID;
    string mName;
    string mProjName;
    string mComputerName;

    string mClientProjectName;

    uint8_t mMessageNumberSend{1};
    int mMessageNumberReceived{-1}; // set to -1 because the first received message will set the number (1..255)
    vector<unique_ptr<Message>> mOvertakingMessages;

    // Server's info filled by parseConnectAnswer
    string mServerID{};
    string mServerName{};
    string mServerComputerName{};
    int mServerStepTime{-1};

    //--- Server Project ---
    string mServerProjectID;
    string mServerProjectName;
    int mServerFramesPerSecond;

  public:
    /** The ID of the client.<br>Every client instance should set an unique id*/
    string getID() { return mID; }
    /** The name of the client, should be set by the user app*/
    string getName() { return mName; }
    //----- Computer Params -----
    /** The name of the client's host computer*/
    string getComputerName() { return mComputerName; }
    void setClientProjectName(string clientProjectName) { mClientProjectName = clientProjectName; }
    string getClientProjectName() { return mClientProjectName; }

    // connected Server Infos
    /** The ID of the connected SPITServer*/
    string getServerID() { return mServerID; }
    /** The host computername of the connected SPITServer*/
    string getServerComputerName() { return mServerComputerName; }
    /** The name of the connected SPITServer*/
    string getServerName() { return mServerName; }

    /** Expected Refreah Rate of the connectd SPITServer.<br>
     * When the server plays objects, it will do so at discrete time steps.<br>
     * Play events will take place in these time steps..
     */
    int getServerStepTime() { return mServerStepTime; }

    /** Should be called when the client wants to close his project*/
    void clientProjectClose();
    /**
     * Should be called whenever the client has a project loaded
     */
    void clientProjectLoaded();

    void setActionSPITType(string spitypeID, bool actionAssigned);
    void setActionSPITObject(string objectID, bool actionAssigned);

    //--------------- SPITMessage ---------------
  private:
    bool startReceiveSPITMessages();
    void stopReceiveSPITMessages();
    static void receiveSpitMessage(SClient &rM);
    static void processSpitMessage(SClient &rM);
    // Reconnect to the server when connection is lost see eventConnectionStatus and eventServerDetected
    bool _doReconnect{}; // true = on eventServerDetected connect to the server identified by mServerID
  public:
    int sendSPITMessage(Message::OPPart & spitMessageOPPart);

    //--------------- ServerAutoDetection SAD ---------------
  public:
    /** Starts the autodetection of SPITServers in the local network. If a connection is tried, the autodetection should be stopped before.*/
    void startServerAutoDetect();
    /** Stops the autodetection of SPITServers in the local network*/
    void stopServerAutoDetect();
    /** Called every time a new SPITServer is detetced in the local network */
    void eventServerDetected(SadDetectedServer &server);
    /** Called every time a prior detected SPITServer is is no longer found.*/
    void eventServerLost(SadDetectedServer &server);
    void eventServerChanged(SadDetectedServer &server);

    //--------------- Connection ---------------
  public:
    /**
     * Tries a connection to the SPITServer
     * @param p_ServerIP ip address of the SPITServer
     * @param p_ServerPort port of the SPITServer
     * @param p_ClientIP IP of the client
     * @param p_ClientPort if "0" any free port will be used
     * @param p_LoginName maybe some SPITServer need a login - liveSHOWsoftware will not.
     * @param p_LoginPassword maybe some SPITServer need a login - liveSHOWsoftware will not
     * @return true = the connection try is ok, SPITServer will answer with COnnectAnswer and an eventConnectionStatus will occur.<br>
     * false = something is going wrong. (client could not bind)
     */
    bool connect(string serverIP, string serverPort, string clientIP, string clientPort, string loginName = "", string loginPassword = "");
    /**
     * Terminates the connection to the SPITServer.
     */
    void disconnect();

  private:
    void disconnectInternal(Connection cause);
    void resetMessageNumberReceived();
    void parseMessage(unique_ptr<Message> message);
    void checkParseMessage(unique_ptr<Message> message);
    void addOvertakingMessage(unique_ptr<Message> message);
    void parseConnectAnswer(Message::ConnectAnswer &message);
    void parseDisconnect(Message::Disconnect &message);
    void parseWatchdog(Message::Watchdog &message);
    void parseWatchdogAnswer(Message::WatchdogAnswer &message);

  public:
    /** Used internally*/
    void sendWatchdog();
    /** Used internally. When the connection to the SPITServer is lost an eventConnectionStatus will occur*/
    void eventWatchdogLost();
    //--------------- SPIT Project ---------------
  private:
    void parseReportProject(Message::ReportProject &message);
    void parseCloseProject(Message::CloseProject &message);

  public:
    /** Returns the SPITServer's project ID - may be the same as the project's name*/
    string getServerProjectID();
    /** Returns the SPITServer's project name*/
    string getServerProjectName();
    /** Returns frame rate per second. This is the time resolution in which the server transmits time data. The unit of time data is always frames.*/
    int getServerFramesPerSecond();

  private:
    void parseRequestProjectTransfer(Message::RequestProjectTransfer &message);
    void parseStartProjectTransfer(Message::StartProjectTransfer &message);
    void parseEndProjectTransfer(Message::EndProjectTransfer &message);

  public:
    static void sendProject(SClient *p_PtrSClient);

    // --------------- SPIT Types ---------------
  public:
    /**
     * Creates a fixed SPITType for application actions that are always present and project independent.<br>
     * Fixed SPIT types cannot be changed or deleted by the server.<br>
     * These SPITTypes will be automatically added to the SPITType-List and sended to the server.
     * @param p_ID an unique of the SPITType, these are always the same per client approach. Different client approaches should use different ids.
     * @param p_GroupName a name which groups the actions/SPITTypes
     * @param p_Name the name of the Action/SPITType
     * @param p_DefaultDelay maybe there is an default delay until the action starts, this is only used for graphical representations, 0 is allowd
     * @param p_DefaultDuration maybe the action has a default duration, this is only used for graphical representations, 0 is allowd
     * @return the pointer to the new SPITType.
     */
    SType *createTypeFixed(string iD, string groupName, string name, uint64_t defaultDelay, uint64_t defaultDuration);

    /**
     * Creates a SPITType for application actions.<br>
     * These SPITTypes will be automatically added to the SPITType-List and sended to the server.
     * @param p_ID an unique of the SPITType, these are always the same per client approach. Different client approaches should use different ids.
     * @param p_GroupName a name which groups the actions/SPITTypes
     * @param p_Name the name of the Action/SPITType
     * @param p_DefaultDelay maybe there is an default delay until the action starts, this is only used for graphical representations, 0 is allowd
     * @param p_DefaultDuration maybe the action has a default duration, this is only used for graphical representations, 0 is allowd
     * @param p_Fixed true = the server is not allowed to change this SPITType, false = the server may change or delete this SPITType
     * @param p_ProjectIndepended true = the SPITType belongs to a specific project, false = the SpitType always exists for every project
     * @return the pointer to the new SPITType.
     */
    SType *createType(string iD, string groupName, string name, uint64_t defaultDelay, uint64_t defaultDuration, bool fixed, bool projectIndepended);

  private:
    // receive SPIT-Types
    void parseReportType(Message::ReportType &message);
    void parseRemoveSPITType(Message::RemoveType &message);
    int sendSPITTypeInternal(SType &spitType);

  public:
    /**
     * If a client wants to change a SPITType, he should send it to the server.<br>
     * If the SPITTye is a fixed one and not created by the client himself, then an eventSPITType can be sent from the server, which cancels the change.<br>
     * @param spitypeID the id of the SPITType to remove.
     * @return 0 = is sended, -1 = is not sended
     */
    bool changeSPITType(SType *spitType);
    /**
     * If a client wants to remove a SPITType, he should send it to the server.<br>
     * If the SPITTye is a fixed one and not created by the client himself, then an eventSPITType can be sent from the server, which cancels the deletion.<br>
     * @param spitypeID the id of the SPITType to remove.
     * @return 0 = is sended, -1 = is not sended
     */
    int removeSPITType(string spitypeID);

  public:
    //--------------- SPIT Objects ---------------
  private:
    void parseReportSPITObject(Message::ReportObject &message);
    void parseRemoveSPITObject(Message::RemoveObject &message);
    int sendSPITObjectInternal(SObject *ptrObject);

  public:
    /**
     * When the client changes a SPITObject (normally the client should not do this), then it should send the changes to the SPITServer.<br>
     * The SPITServer may discard the changes and an eventSPITObject occurs.<br>
     * @param spitObject the pointer to the changed SPITObject.
     * @return 0 = sended, -1 = not sended
     */
    bool changeSPITObject(SObject *spitObject);
    /**
     * When the client removes a SPITObject (normally the client should not do this), then he should send it to the SPITServer.<br>
     * The SPITServer may discard the deletion and an eventSPITObject occurs.<br>
     * @param objectID the id of the SPITObject to remove.
     * @return 0 = sended, -1 = not sended
     */
    int removeSPITObject(string objectID);

  public:
    //--------------- Play SPIT Objects ---------------
  private:
    void parsePlaySPITStart(Message::PlayStart &message);
    void parsePlaySPITObject(Message::PlayObject &message);
    void parsePlaySPITEnd(Message::PlayEnd &message);
    void parseReportPlayStatus(Message::ReportPlayStatus &message);

  public:
    //--------- Remote ----------
    void sendRemoteObject(string objectID, int valuePpm = 0, char valueFlag = 0x00);

  private:
    static void processSocketTask(SClient &instance);
    fos::TaskT<SClient &> *sThread{};
    bool mAbortSearch{};
    bool sAnswered{};
    static fos::Semaphore sStartSad;
    ISocket &mSocket;
    void answerWatchdog() {
        sAnswered = true;
    }

    SpitRepo<SObject> mSpitObjects;
    SpitRepo<SObject> mRemoteSpitObjects;
    SpitRepo<SType> mSpitTypes;
    SpitRepo<SType> mRemoteSpitTypes;
};

}