#ifndef _LOCOMOTIVE_H_
#define _LOCOMOTIVE_H_

#include "modelbahn.h"
#include "server.h"

#define LOCO_F_REVERSE		0x0001
#define LOCO_F_CARGO		0x0010
#define LOCO_F_CANREVERSE	0x0020
#define LOCO_F_SHORTTRAIN	0x0040
#define LOCO_F_AUTO			0x0100
#define LOCO_F_AUTOSHED		0x0200
#define LOCO_F_AUTORANDOM	0x0400
#define LOCO_F_AUTOSTOP		0x0800

#define LOCO_TO_TURNOUT		(50+TURNOUT_DEFAULT_ACTIVETIMEOUT)
#define LOCO_TO_TRYAGAIN    (1000)

#define WAYDATA_LEN 		(16*REFERENCENAME_LEN)

enum {
	LOCO_INT_UNDEF = 0,
	LOCO_INT_DCC14,
	LOCO_INT_DCC28,
	LOCO_INT_DCC128
};

enum {
	LOCO_OR_NOTHING = 0,
	LOCO_OR_SEARCH,				// search way  (to next block and lock way)
	LOCO_OR_PREPARE,			// switch turnouts right way (one every 100ms)
			// if no turnout has to been set, continue
	LOCO_OR_ONTHEWAY,			// locomotive is on the way // maybe prepare next block?
			// ASSIGN -> PREV, NEXT -> ASSIGN, NEXT <- (empty)
			// propabely searching next block (if DEST is set)?
	LOCO_OR_ENTERBLOCKNEXT,		// got new block ready?
	LOCO_OR_ENTERBLOCKSTOP,		// got new block ready?
			// if NEXT is empty and way not AutoPrepareWay not finished... slow down
	LOCO_OR_STOPWAIT			// stopping
};

struct s_Locomotive {
	char name[REFERENCENAME_LEN];		// name
	char ifname[REFERENCENAME_LEN];		// ref. of interface
	int addr;							// address on bus
	int stepcode;						// stepcoding LOCO_INT_DCC...
	int flags;							// flags
	int vmin;							// speed - below this we always set 0
	int vslow;							// speed - slow entry in trainstation
	int vmid;							// speed - for normal trains (max for cargo trains, on automode)
	int vfast;							// speed - for normal trains
	int vmax;							// speed - maximum speed
	char schedway[WAYDATA_LEN];			// scheduled way W:15,B:+B17,W30,B:-B21

	// dynamic data
	int speed;							// current speed
	int64_t func;						// function enabled ... light...
	char blockassign[REFERENCENAME_LEN];		// currently assigned block [+BLOCKREFNAME ... -BLOCKREFNAME]
	char blocknext[REFERENCENAME_LEN];			// next block to go to
	char blockprev[REFERENCENAME_LEN];			// prev block (mostly assigned block
	char blockdest[REFERENCENAME_LEN];			// destination block

	int sched_step;						// on automode this is the scheduled way step
	char auto_way[WAYDATA_LEN];			// route to way "b:+blockname,t:name:0,t:name:1,b:-blockname"
	char auto_wayold[WAYDATA_LEN];		// route to way "b:+blockname,t:name:0,t:name:1,b:-blockname"
	int auto_onroute;					// LOCO_OR_....
	int auto_data;						// just some data needed by some steps
	struct timeval auto_timenext;		// timeval of the next active step
} typedef Locomotive;


class Locomotives {
	private:
		Locomotive *locomotives;
		int max;
		int changed;

		pthread_mutex_t mtx;
		int Lock();
		int UnLock();

		// not thread safe
		JSONParse _GetJSON(int idx);
		int SchedulerNextStep(Locomotive *loc);			// automode, calculate next step
		void SendUpdate(Locomotive *loc);

		int Loco_SearchAndLock(Locomotive *loco);
		int Loco_PrepareWay(Locomotive *loco);
		int Loco_OnRoute(Locomotive *loco);
		int Loco_BlockEnterStop(Locomotive *loco);
		int Loco_BlockEnterNext(Locomotive *loco);
		int Loco_BlockStopWait(Locomotive *loco);
	public:
		Locomotives();
		~Locomotives();

		bool IsChanged() { return changed; }
		void ClearChanged() { changed = 0; };

		int Change(Locomotive *loco);
		int Delete(string name);
		int SetSpeed(string name, int speed);
		int SetReverse(string name, int reverse);
		int SetFunction(string name, int func, int value);
		int Reset(string name);
		int SetModeMan(string name);
		int SetModeAutoMan(string name);
		int SetModeAuto(string name);
		int SetModeAutoRand(string name);
		int SetModeAutoShed(string name);
		int SetSpeedFromBus (string ifname, int addr, int speed);
		int SetFunctionFromBus (string ifname, int addr, int func);
		int SetDestination (string name, string block, int direction);
		int SetAssign (string name, string block, int direction);
		int GetFlags(string name);

		int AutoCheckWaySingleStep(string way, Locomotive *loc, int *data);
		int Loop();

		string GetName(int idx);

		JSONParse GetJSON(string name);
		void GetJSONAll(JSONParse *json);
		Locomotive GetLocomotiveFromJSON(JSONParse *j);
};


#endif