//
// cfperl.h perl interface
//
#ifndef CFPERL_H__
#define CFPERL_H__

// could have used templates, but a more traditional C api
// uses more explicit typing which is ok for this purpose.
enum data_type {
  DT_END,     // no further arguments
  DT_INT,
  DT_INT64,
  DT_DOUBLE,
  DT_STRING,  // 0-terminated string
  DT_DATA,    // string + length
  DT_OBJECT,
  DT_MAP,
  DT_PLAYER,
  DT_ARCH,
  DT_PARTY,
  DT_REGION,

  // following are only for cfapi-compatibility
  DT_INT_PTR,
  DT_INT64_PTR,
  DT_DOUBLE_PTR,
};

enum event_klass {
  KLASS_GLOBAL,
  KLASS_PLAYER,
  KLASS_OBJECT,
  KLASS_MAP,
};

enum event_type {
# define def(klass,name) EV_ ## klass ## _ ## name,
#  include "eventinc.h"
# undef def
  NUM_EVENT_TYPES
};

#define ARG_INT(v)    DT_INT   , static_cast<int>    (v)
#define ARG_INT64(v)  DT_INT64 , static_cast<sint64> (v)
#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
#define ARG_DATA(s,l) DT_DATA  , static_cast<const void *> (s), (l)
#define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *>    (o)
#define ARG_MAP(o)    DT_MAP   , static_cast<struct mapstruct *> (o)
#define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *>        (o)
#define ARG_ARCH(o)   DT_ARCH  , static_cast<struct archetype *> (o)
#define ARG_PARTY(o)  DT_PARTY , static_cast<struct party *>     (o)
#define ARG_REGION(o) DT_REGION, static_cast<struct region *>    (o)

// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension

// all these return true when the normal event processing should be skipped (if any)
#define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## _ ## event, ## __VA_ARGS__, DT_END)

#define INVOKE_GLOBAL(event, ...)     INVOKE (GLOBAL, event,                  ## __VA_ARGS__)
#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__)
#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__)
#define INVOKE_MAP(event, map, ...)   INVOKE (MAP   , event, ARG_MAP (map)  , ## __VA_ARGS__)

bool cfperl_invoke (event_type event, ...);
void cfperl_free_ob (object *op);

void cfperl_init ();
void cfperl_main ();

#endif