/* sc_tree.h — пошаговый BFS-обход дерева для рекурсивных файловых jobs. */

#ifndef SC_TREE_H
#define SC_TREE_H

#include <stdint.h>
#include "sc_copy.h"
#include "sc_entry.h"

#define SC_TREE_STEP_ERROR     (-1)
#define SC_TREE_STEP_DONE        0
#define SC_TREE_STEP_FILE        1
#define SC_TREE_STEP_DIRECTORY   2
#define SC_TREE_STEP_SCAN_DIR    3

typedef struct {
    uint8_t block;
    uint8_t page;
    uint8_t active;
    uint8_t scan_state;
    uint16_t head;
    uint16_t tail;
    uint16_t current;
    uint16_t reverse;
    uint16_t created_directories;
    uint16_t files_seen;
    int error;
} ScTreeJob;

int sc_tree_begin(ScTreeJob *job, ScCopyJob *copy) __banked;
int sc_tree_add_root(ScTreeJob *job, ScCopyJob *copy,
                     const char *source_base, const char *target_base,
                     const char *name) __banked;
int sc_tree_add_delete_root(ScTreeJob *job, const char *name) __banked;
int sc_tree_next(ScTreeJob *job, ScCopyJob *copy,
                 const char *source_base, const char *target_base,
                 ScDirEntry *entry) __banked;
int sc_tree_delete_next(ScTreeJob *job, ScCopyJob *copy,
                        const char *source_base,
                        ScDirEntry *entry) __banked;
int sc_tree_finish(ScTreeJob *job, ScCopyJob *copy) __banked;

#endif