#ifndef VM_COMPILE_H
#define VM_COMPILE_H
#include "../common/fio.h"
#include "../common/llist.h"
#include "../common/data.h"
#include <stdio.h> // FILE

/*** GLOBAL DATA ***/
extern char* vm_datatypes[];
extern char* vm_expressions[];
extern char* vm_assignments[];
extern char* vm_operations[];
extern const char *vm_pc_binary_operators[];
extern const char *vm_pc_assignment_operators[];
extern const char *vm_pc_operators[][6];

struct vm_pc_Scope vm_pc_global_scope;
struct Table *vm_pc_group_scopes;
struct Table *vm_pc_local_scopes;

/*** STRUCTURES ***/
struct vm_pc_Variable {
  char *type; // data type as string, malloc'd and memcpy'd
  char *data; // data as string, malloc'd and memcpy'd
};
struct vm_pc_Operation {
  int operation;
  char *var_1;
  char *var_2;
  char *var_3;
  char *var_4;
};
struct vm_pc_Function {
  struct vm_pc_Variable *ret; // return variable
  struct Table *parameters; // input params
  struct Table *variables; // function local variables
  struct Table *operations; // operations! :)
};
struct vm_pc_Scope {
  struct Table *variables;
  struct Table *functions;
};
struct vm_pc_ENode {
  char type; // +, -, /, variable, value, function, etc.
  void *data; // variable name, function, etc.
  struct vm_pc_ENode *left;
  struct vm_pc_ENode *right;
};
struct vm_pc_ENodeFunction {
  char *name; // name of function
  struct vm_pc_ENode *params; // array of parameters in Expression form
};
/*** PARSING ***/
int vm_precompileFile(const char *file_name);
//int vm_precompileSection(FILE *file, int *lpos_, int *cpos_, struct vm_pc_Scope *global, struct vm_pc_Scope *group, struct vm_pc_Scope *local);
int vm_precompileSection(char *file_buffer, int *file_pos_, int *lpos_, int *cpos_, struct vm_pc_Scope *global, struct vm_pc_Scope *group, struct vm_pc_Scope *local);
//int vm_precompileFunction(FILE *file, int *lpos_, int *cpos_, struct vm_pc_Scope *global, struct vm_pc_Scope *group, struct vm_pc_Scope *local, struct vm_pc_Function *func);
int vm_precompileFunction(char *file_buffer, int *file_pos_, int *lpos_, int *cpos_, struct vm_pc_Scope *global, struct vm_pc_Scope *group, struct vm_pc_Scope *local, struct vm_pc_Function *func);
/*** POPULATING ***/
int vm_pc_addVariableToScope(struct vm_pc_Scope *scope, const char *data_type, const char *data_name);
int vm_pc_addFunctionToScope(struct vm_pc_Scope *scope, struct vm_pc_Function *func, const char *func_name);
int vm_pc_setVariable(struct vm_pc_Variable *variable, const char *value);
/*** ALLOC ***/
struct vm_pc_ENode *vm_pc_newENode(char type, void *data);
struct vm_pc_Variable *vm_pc_newVariable(const char *type, const char *value);
struct vm_pc_Function *vm_pc_newFunction();
/*** FREE ***/
int vm_pc_freeVariable(struct vm_pc_Variable *variable);
int vm_pc_freeVariables(struct Table *variables);
int vm_pc_freeFunction(struct vm_pc_Function *function);
int vm_pc_freeFunctions(struct Table *functions);
int vm_pc_freeScope(struct vm_pc_Scope *scope);
/*** ETC ***/
int vm_pc_dumpScope(struct vm_pc_Scope *scope);
int vm_isReserved(char *word);

#endif