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#ifndef WP_MEMORY_MANAGER_H
#define WP_MEMORY_MANAGER_H

#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>

#define WP_BLOCK_SIZE 2048 /* 2KB blocks matching DOS sector/ring slide */
#define WP_MEM_INVALID_BLOCK UINT32_MAX

typedef struct WpMemBlock {
    uint32_t id;
    uint8_t data[WP_BLOCK_SIZE];
    bool is_dirty;
    bool is_in_ram;
    uint32_t last_access;
} WpMemBlock;

typedef struct WpVirtualMemory {
    WpMemBlock *ram_pool;
    int pool_size;
    const char *swap_file;
    uint32_t access_clock;
} WpVirtualMemory;

/* Memory management functions */
void wp_mem_init(WpVirtualMemory *vm, int pool_size, const char *swap_path);
void wp_mem_destroy(WpVirtualMemory *vm);
void* wp_mem_get_ptr(WpVirtualMemory *vm, uint32_t offset);
bool wp_mem_mark_dirty(WpVirtualMemory *vm, uint32_t offset);
bool wp_mem_flush(WpVirtualMemory *vm);
bool wp_mem_read(WpVirtualMemory *vm, uint32_t offset, void *dst, size_t count);
bool wp_mem_write(WpVirtualMemory *vm, uint32_t offset, const void *src, size_t count);
void wp_mem_swap_out(WpVirtualMemory *vm, int pool_index);
void wp_mem_swap_in(WpVirtualMemory *vm, uint32_t block_id, int pool_index);

#endif

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