#ifndef SCOPE_H
#define SCOPE_H

#include "types.h"

#define SCOPE_MEM_SIZE 10000
#define SCOPE_VAR_MAX 500

typedef struct Scope {
    struct Scope *parent;
    long *memory;
    int mem_size;
    Symbol *locals;
    int loc_capacity;
    int sp;
    int bp;
    int loc_cnt;
    int depth;
} Scope;

extern Scope *current_scope;
extern Scope *root_scope;

Scope* scope_create(Scope *parent);
void scope_destroy(Scope *scope);
Scope* scope_push(void);
Scope* scope_pop(void);

int scope_find_local(const char *name, int len);
int scope_find_local_current_only(const char *name, int len);
Symbol* scope_get_local(int idx);
Symbol* scope_add_local(const char *name, int len, int type, int addr, int is_array);

long scope_mem_read(int addr);
void scope_mem_write(int addr, long value);
int scope_mem_alloc(int size);
int scope_check_sp(int required);
int scope_check_addr(int addr);

void scope_init(void);
void scope_cleanup(void);

void scope_save_state(int *out_sp, int *out_bp, int *out_loc_cnt);
void scope_restore_state(int saved_sp, int saved_bp, int saved_loc_cnt);

void scope_sync_to_globals(void);
void scope_sync_from_globals(void);

Symbol* scope_find_local_symbol(const char *name, int len);
int scope_find_local_with_scope(const char *name, int len, Scope **out_scope);
long scope_read_var(const char *name, int len);
void scope_write_var(const char *name, int len, long value);

#endif