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/**
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 * @file
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 * @brief
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 *
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 * @date 10.02.2024
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 * @author Anton Bondarev
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 */
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#include <stddef.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <fs/inode.h>
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#include <fs/super_block.h>
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#include <fs/dentry.h>
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#include <fs/iso9660.h>
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extern struct idesc *dvfs_file_open_idesc(struct lookup *lookup, int __oflag);
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extern int cdfs_destroy_inode(struct inode *inode);
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extern int cdfs_find_in_dir(struct cdfs_fs_info *cdfs, int dir, char *name,
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								int len, iso_directory_record_t **dirrec);
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extern int cdfs_find_dir(struct cdfs_fs_info *cdfs, char *name, int len);
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extern int cdfs_alloc_inode_priv(struct inode* node);
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extern int cdfs_fill_node(struct inode* node, char *name, 
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					struct cdfs_fs_info *cdfs, iso_directory_record_t *rec);
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struct inode *cdfs_ilookup(struct inode *node, char const *name, struct inode const *dir) {
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	struct super_block *sb;
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	struct cdfs_fs_info *fsi;
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	iso_directory_record_t *rec;
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	int res;
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	int n;
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	char *dir_name;
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	assert(name);
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	assert(S_ISDIR(dir->i_mode));
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	sb = dir->i_sb;
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	fsi = sb->sb_data;
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	if (dir == dir->i_sb->sb_root) {
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		dir_name = "";
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	} else {
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		dir_name = inode_name((struct inode *)dir);
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	}
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	n = cdfs_find_dir(fsi, dir_name, strlen(dir_name));
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	res = cdfs_find_in_dir(fsi, n, (char *)name, strlen(name), &rec);
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	if (res) {
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		return NULL;
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	}
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	res = cdfs_alloc_inode_priv(node);
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	if (res) {
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		return NULL;
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	}
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	res = cdfs_fill_node(node, (char *)name, fsi, rec);
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	if (res) {
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		return NULL;
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	}
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	return node;
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}
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struct super_block_operations cdfs_sbops = {
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	.open_idesc    = dvfs_file_open_idesc,
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	.destroy_inode = cdfs_destroy_inode,
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};
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