#ifndef BASIC_BUFFER_H
#define BASIC_BUFFER_H

#include "Types.h"

typedef struct {
    u8* data;
    size_t maxIndex;
    size_t readIndex;
    size_t writeIndex;
} Buffer;

void bufferInit(Buffer* b, u8* data, size_t n);
void bufferReset(Buffer* b);
[[nodiscard]] bool bufferWrite(Buffer* b, const void* p, size_t n);
[[nodiscard]] bool bufferRead(Buffer* b, void* p, size_t n);

#define BUFFER_READ_WRITE(Type, type)                        \
    [[nodiscard]] bool bufferWrite##Type(Buffer* b, type t); \
    [[nodiscard]] bool bufferRead##Type(Buffer* b, type* t)

BUFFER_READ_WRITE(I8, i8);
BUFFER_READ_WRITE(I16, i16);
BUFFER_READ_WRITE(I32, i32);
BUFFER_READ_WRITE(I64, i64);
BUFFER_READ_WRITE(U8, u8);
BUFFER_READ_WRITE(U16, u16);
BUFFER_READ_WRITE(U32, u32);
BUFFER_READ_WRITE(U64, u64);

bool bufferIsEmpty(const Buffer* b);

size_t bufferGetReadIndex(const Buffer* b);
void bufferSetReadIndex(Buffer* b, size_t n);
size_t bufferGetWriteIndex(const Buffer* b);
void bufferSetWriteIndex(Buffer* b, size_t n);

#endif