#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <string.h>
#include <ctype.h>
#include <limits.h>

#include "edje_cc.h"

static Eet_Data_Descriptor *_srcfile_edd = NULL;
static Eet_Data_Descriptor *_srcfile_list_edd = NULL;

static Eet_Data_Descriptor *_external_edd = NULL;
static Eet_Data_Descriptor *_external_list_edd = NULL;

static Eet_Data_Descriptor *_font_edd = NULL;
static Eet_Data_Descriptor *_font_list_edd = NULL;

static SrcFile_List srcfiles = {NULL};

void
source_edd(void)
{
   Eet_Data_Descriptor_Class eddc;

   eet_eina_stream_data_descriptor_class_set(&eddc, sizeof (eddc), "srcfile", sizeof (SrcFile));
   _srcfile_edd = eet_data_descriptor_stream_new(&eddc);
   EET_DATA_DESCRIPTOR_ADD_BASIC(_srcfile_edd, SrcFile, "name", name, EET_T_INLINED_STRING);
   EET_DATA_DESCRIPTOR_ADD_BASIC(_srcfile_edd, SrcFile, "file", file, EET_T_INLINED_STRING);

   eet_eina_stream_data_descriptor_class_set(&eddc, sizeof (eddc), "srcfile_list", sizeof (SrcFile_List));
   _srcfile_list_edd = eet_data_descriptor_stream_new(&eddc);
   EET_DATA_DESCRIPTOR_ADD_LIST(_srcfile_list_edd, SrcFile_List, "list", list, _srcfile_edd);

   eet_eina_stream_data_descriptor_class_set(&eddc, sizeof (eddc), "external", sizeof (External));
   _external_edd = eet_data_descriptor_stream_new(&eddc);
   EET_DATA_DESCRIPTOR_ADD_BASIC(_external_edd, External, "name", name, EET_T_INLINED_STRING);

   eet_eina_stream_data_descriptor_class_set(&eddc, sizeof (eddc), "external_list", sizeof (External_List));
   _external_list_edd = eet_data_descriptor_stream_new(&eddc);
   EET_DATA_DESCRIPTOR_ADD_LIST(_external_list_edd, External_List, "list", list, _external_edd);

   _edje_data_font_list_desc_make(&_font_list_edd, &_font_edd);
}

static void source_fetch_file(const char *fil, const char *filname);

static void
source_fetch_file(const char *fil, const char *filname)
{
   FILE *f;
   char buf[16 * 1024], *dir = NULL;
   long sz;
   size_t tmp;
   ssize_t dir_len = 0;
   SrcFile *sf;

   f = fopen(fil, "rb");
   if (!f)
     {
	ERR("Cannot open file '%s'", fil);
	exit(-1);
     }

   fseek(f, 0, SEEK_END);
   sz = ftell(f);
   fseek(f, 0, SEEK_SET);
   sf = mem_alloc(SZ(SrcFile));
   sf->name = mem_strdup(filname);
   sf->file = mem_alloc(sz + 1);
   if (sz > 0)
     {
	tmp = fread(sf->file, sz, 1, f);
	if (tmp != 1)
	  {
	     ERR("file length for (%s) doesn't match!", filname);
	     exit(-1);
	  }
     }

   sf->file[sz] = '\0';
   fseek(f, 0, SEEK_SET);
   srcfiles.list = eina_list_append(srcfiles.list, sf);

   while (fgets(buf, sizeof(buf), f))
     {
	char *p, *pp;
	int got_hash = 0;
	int forgetit = 0;
	int haveinclude = 0;
	char *file = NULL, *fname = NULL;

	p = buf;
	while ((!forgetit) && (*p))
	  {
	     if (!got_hash)
	       {
		  if (!isspace(*p))
		    {
		       if (*p == '#')
			 got_hash = 1;
		       else
			 forgetit = 1;
		    }
		  p++;
	       }

	     if (!haveinclude)
	       {
		  if (!isspace(*p))
		    {
		       if (!strncmp(p, "include", 7))
			 {
			    haveinclude = 1;
			    p += 7;
			 }
		       /* HACK! the logic above should be fixed so
			* preprocessor statements don't have to begin
			* in column 0.
			* otoh, edje_cc should print a warning in that case,
			* since according to the standard, preprocessor
			* statements need to be put in column 0.
			*/
		       else if (!strncmp(p, "#include", 8))
			 {
			    haveinclude = 1;
			    p += 8;
			 }
		       else
			 forgetit = 1;
		    }
	       }
	     else
	       {
		  if (!isspace(*p))
		    {
		       char end = '\0';

		       if (*p == '"') end = '"';
		       else if (*p == '<') end = '>';

		       if (end)
			 {
			    pp = strchr(p + 1, end);
			    if (!pp)
			      forgetit = 1;
			    else
			      {
				 char *slash;
				 ssize_t l = 0;

				 /* get the directory of the current file
				  * if we haven't already done so
				  */
				 if ((!dir) && (strrchr(fil, '/')))
				   {
				      dir = mem_strdup(fil);
				      slash = strrchr(dir, '/');
				      *slash = '\0';
				      dir_len = strlen(dir);
				   }

				 l = pp - p + dir_len + 1;
				 file = mem_alloc(l);

				 if (!dir_len)
				   {
				      snprintf(file, l - 1, "%s", p + 1);
				      file[l - 2] = 0;
				   }
				 else
				   {
				      snprintf(file, l, "%s/%s", dir, p + 1);
				      file[l - 1] = 0;
				   }


				 fname = strdup(p + 1);
				 pp = strrchr(fname, end);
				 if (pp) *pp = 0;
				 forgetit = 1;
			      }
			 }
		       else
			 forgetit = 1;
		    }
		  else
		    p++;
	       }

	     got_hash = 0;
	  }
	if ((file) && (fname))
	  {
	     source_fetch_file(file, fname);
	     free(file);
	     free(fname);
	  }
     }
   free(dir);
   fclose(f);
}

void
source_fetch(void)
{
   char buf[PATH_MAX] = {0}, *ptr;

   ptr = strrchr(file_in, '/');
   if (ptr)
     {
	snprintf(buf, sizeof (buf), "%s", ptr + 1);
     }

   source_fetch_file(file_in, buf[0] ? buf : file_in);
}

int
source_append(Eet_File *ef)
{
   return eet_data_write(ef, _srcfile_list_edd, "edje_sources", &srcfiles,
                         compress_mode);
}

SrcFile_List *
source_load(Eet_File *ef)
{
   SrcFile_List *s;

   s = eet_data_read(ef, _srcfile_list_edd, "edje_sources");
   return s;
}

int
source_fontmap_save(Eet_File *ef, Eina_List *font_list)
{
   Edje_Font_List fl;

   fl.list = font_list;
   return eet_data_write(ef, _font_list_edd, "edje_source_fontmap", &fl,
                         compress_mode);
}

Edje_Font_List *
source_fontmap_load(Eet_File *ef)
{
   Edje_Font_List *fl;

   fl = eet_data_read(ef, _font_list_edd, "edje_source_fontmap");
   return fl;
}