#ifndef RUNTIME_H
#define RUNTIME_H

#include "allocator.h"
#include "lexer.h"
#include <stdbool.h>
#include <stdint.h>

typedef enum {
    ValueTypeSymbol,
    ValueTypeInt,
    ValueTypeChar,
    ValueTypeBool,
    ValueTypeList,
} ValueType;

typedef struct Value Value;

typedef struct {
    Allocator* allocator;
    Value* data;
    size_t length;
    size_t capacity;
} ValueVec;

void value_vec_construct(ValueVec* vec, Allocator* allocator);
void value_vec_destroy(ValueVec* vec);
Value* value_vec_at(const ValueVec* vec, int64_t index);
void value_vec_reserve(ValueVec* vec, size_t min_capacity);
void value_vec_push(ValueVec* vec, Value value);
Value value_vec_pop(ValueVec* vec);
ValueVec value_vec_clone(ValueVec* vec);
ValueVec value_vec_tail(ValueVec* vec);
void value_vec_stringify(const ValueVec* vec, String* acc);

struct Value {
    ValueType type;
    union {
        String symbol;
        int64_t int_value;
        char char_value;
        bool bool_value;
        ValueVec list;
    };
};

void value_destroy(Value* value);
void value_stringify(const Value* value, String* acc);

typedef struct {
    Allocator* allocator;
    ValueVec stack;
} Runtime;

void runtime_construct(Runtime* runtime, Allocator* allocator);
void runtime_destroy(Runtime* runtime);

#endif