#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <windows.h>

#include "lang.h"
#include "os.h"
#include "memory.h"

#include "common.c"
#include "memory.c"
#include "scratch.c"
#include "os_win32.c"

#include "new_lex.c"

//-----------------------------------------------------------------------------
// String replacing util
//-----------------------------------------------------------------------------
typedef struct String_Map String_Map;
struct String_Map{
  String replace;
  String with;
};

function void
output_template(FILE *f, String filename, String_Map *map, SizeU map_cap){
  Arena *scratch = arena_begin_scratch();
  String file = os_read_file(scratch, filename);
  Token_Array array = lex_stream(scratch, file, filename);
  for(Token *t = token_array_iter_begin(&array); t->kind != TK_End; t = token_array_iter_next(&array)){
    String string = t->string;
    for(SizeU i = 0; i < map_cap; i++){
      if(string_compare(string, map[i].replace)){
        string = map[i].with;
        break;
      }
    }
    
    
    fprintf(f, "%.*s", (int)string.len, string.str);
    if(t->kind == TK_OpenBrace) fprintf(f, "\n");
    if(t->kind == TK_CloseBrace && token_array_iter_peek(&array, 0)->kind != TK_Semicolon) fprintf(f, "\n");
    if(t->kind == TK_Semicolon) fprintf(f, "\n");
    if(t->kind == TK_Keyword) fprintf(f, " ");
    if(t[0].kind == TK_Identifier && token_array_iter_peek(&array, 0)->kind == TK_Identifier) fprintf(f, " ");
    token_array_iter_peek(&array, 1);
  }
  arena_end_scratch();
}

int main(){
  
  FILE *f = fopen("generated.c", "w");
  assert(f);
  String_Map map[] = {
    {lit("Type"), lit("Decl")},
    {lit("first"), lit("list_decl.first")},
    {lit("last"), lit("list_decl.last")},
    {lit("remove"), lit("decl_list_remove")},
    {lit("push_front"), lit("decl_dll_list_push_front")},
    {lit("push"), lit("decl_dll_list_push")},
  };
  output_template(f, lit("dllqueue.c"), map, buff_cap(map));
  
  fclose(f);
}