/* Asset Package Compiler */
%code requires{
  #include <stdint.h>
  #include <unitypes.h>
}
%{
  #include <stdio.h>
  #include <string.h>
  #include <dirent.h>
  #include <png.h>
  #include <apc/ir.h>

  extern int lexer_init();
  extern int lexer();
  #define yylex lexer


  void yyerror();
%}
%define parse.error verbose
%define lr.type ielr

%union {
  int ref;
  int val;
  uint8_t *str;
  void *voidp;
}

 //operators
%token         CLOPEN    // (
%token         CLCLOSE   // )
%token         SOPEN     // {
%token         SCLOSE    // }
%token         EOPEN     // [
%token         ECLOSE    // ]
%token         VOPEN     // /
%token         VCLOSE    // '\'
%token         MOPEN     // {
%token         MCLOSE
%token         HB
%token         ROOT

%token         QOPEN     // !
%token         QCLOSE    // @

 //nonterminal types
%type <ref> olink
%type <ref> ele_svlink
%type <ref> set_svlink
//terminals
%token <val> NUM
%token <str> STR
%token <val> SS
%token <str> NAME
%token <str> FNAME
%token <ref> REF
%token <val> SSD
// Change width, height, num_ptrs to NUM because
// when scanning, we can't determine which NUM
// is which. 
%token <val> WIDTH
%token <val> HEIGHT
%token <val> NUM_PTRS
%token <voidp> FPTR
//precedence
%precedence LP
%precedence MP
%precedence HP

 /* Syntax Directed Translation Scheme of the APC grammar */

/* Rules */
%%
cdat_buf:
class_list
;

class:
 CLOPEN NAME {push_cdat($2);} class_block CLCLOSE              {pop_cdat();};
;

class_list:
class_list class
| class
;

class_block:
class_list
| class_list set_list
| set_list
;

set_list:
set_list set
| set
;

variant_list:
variant_list variant
| variant                                           
;

hitbox:
HB NUM
;

root:
ROOT NUM NUM NUM
;

variant:
MOPEN NAME NUM NUM NAME                                 {insert_variant($2, $3, $4, $5);};
;

set_map_data:
variant_list
| variant_list HP hitbox root
| variant_list MP root
;

set:
SOPEN set_label set_map_data element_list vdat SCLOSE           {insert_set(); insert_set_vdatid();};
| SOPEN set_label set_map_data element_list set_vlink SCLOSE                    {insert_set();};
| SOPEN set_label set_map_data element_list set_svlink SCLOSE                   {insert_set_svlink($5); insert_set(); };
| SOPEN set_label element_list vdat SCLOSE                      {insert_set(); insert_set_vdatid();};
| SOPEN set_label element_list set_vlink SCLOSE                                 {insert_set(); }
| SOPEN set_label element_list set_svlink  SCLOSE                               {insert_set_svlink($4); insert_set();};
| SOPEN olink SCLOSE                                                            {insert_set_olink($2);};
;


set_label:
HP NAME REF                                          {insert_set_label($2,$3);};
| LP NAME                                            {insert_set_label($2, -1);};
;

set_svlink:
REF

;

set_vlink:
REF NAME                                             {insert_set_vlink($1, $2);};
;

olink:
REF
;

//parent_id is the set_index of the subclass_index.
element_list:
element_list element MP
| element LP
;

ele_label:
HP NAME REF                                          {insert_ele_label($2, $3);};
| LP NAME                                            {insert_ele_label($2, -1);};
;

ele_vlink:
REF NAME                                             {insert_ele_vlink($1, $2);};
;

ele_svlink:
REF
;

ele_map_data:
variant_list

element:
EOPEN ele_label ele_map_data vdat ECLOSE                        {insert_ele(); insert_ele_vdatid();};
| EOPEN ele_label ele_map_data ele_vlink ECLOSE                                 {insert_ele(); };
| EOPEN ele_label ele_map_data ele_svlink ECLOSE                                {insert_ele_svlink($4);insert_ele(); };
| EOPEN ele_label vdat ECLOSE                             {insert_ele(); insert_ele_vdatid();};
| EOPEN ele_label ele_vlink ECLOSE                                        {insert_ele(); };
| EOPEN ele_label ele_svlink ECLOSE                                       {insert_ele_svlink($3); insert_ele(); ;}
| EOPEN olink ECLOSE                                                           {insert_ele_olink($2);};
;

vdat:
VOPEN model_list 
| VOPEN NAME NUM NUM NAME                                                 {insert_vdat($2, $3, $4, $5);};
;

model_list:
model_list model
|  model
 ;

model:
spritesheet LP
;

spritesheet:
spritesheet HP framesheet
| framesheet
;

framesheet:
SSD NAME REF HEIGHT WIDTH NUM_PTRS frame_pointers LP                     //{insert_framesheet($1, $2, $3, $4, $5, $6);};
;

frame_pointers:
frame_pointers SSD HP FPTR                                              //{insert_frame_pointer($2, $4);};
| SSD FPTR                                                              //{insert_frame_pointer($1, $2);};
;

%%

void
yyerror (char const *s)
{ fprintf(stderr, "%s\n", s);
}