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#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>

#include "honeysuckle.h"

#include "options.h"
#include "bindings.h"
#include "logging.h"
#include "lua-script/script.h"


struct settings {
   const char *template_dir;
};


#define CHECK_LUA_ERROR()						\
   do {									\
      if (error != 0) {							\
	 argent_log(FATAL, "lua_error: %s", lua_tostring(L, -1));	\
	 lua_close(L);							\
	 return error;							\
      }									\
   } while(0)


int main(int argc, char **argv)
{
   argent_log(DEBUG, "parse command-line options");
   struct argent_options opts;
   int error = parse_options(&opts, argc, argv);
   if (error)
      // error of '2' indicates -h was passed
      return error == 2 ? 0 : 1;

   argent_log(INFO, "log level: %s", level_string(argent_log_level));
   argent_log(INFO, "configuration file: %s", opts.conf_filename);

   argent_log(DEBUG, "create lua state");
   lua_State *L = luaL_newstate();
   luaL_openlibs(L);

   argent_log(DEBUG, "create argent table");
   hs_create_table
      (L,
       hs_str_cfunc("markdown", markdown),
       hs_str_cfunc("currentWorkingDirectory", current_working_directory),
       hs_str_cfunc("scanDirectory", scan_directory),
       hs_str_cfunc("createDirectory", create_directory),
       hs_str_cfunc("copyFile", copy_file),
       hs_str_cfunc("log", argent_log_lua)
       );
   lua_setglobal(L, "argent");

   // load argent lua script
   argent_log(DEBUG, "load main lua script");
   error = luaL_dostring(L, argent_script);
   CHECK_LUA_ERROR();

   // load configuration file
   argent_log(DEBUG, "load configuration file");
   error = luaL_loadfile(L, opts.conf_filename);
   CHECK_LUA_ERROR();
   
   // push config table to stack
   argent_log(DEBUG, "run configuration file");
   error = hs_call(L, 0, 1);
   CHECK_LUA_ERROR();

   // run argent script
   argent_log(DEBUG, "run main lua script");
   error = hs_call(L, 1, 0);
   CHECK_LUA_ERROR();

   argent_log(DEBUG, "close lua state");
   lua_close(L);
   return 0;
}