package fsutils

import (
	`github.com/g0rbe/go-chattr`
)

// https://github.com/torvalds/linux/blob/master/include/uapi/linux/fs.h
const (
	SecureDelete       uint32 = chattr.FS_SECRM_FL        // Secure deletion
	UnDelete                  = chattr.FS_UNRM_FL         // Undelete
	CompressFile              = chattr.FS_COMPR_FL        // Compress file
	SyncUpdatechattr          = chattr.FS_SYNC_FL         // Synchronous updates
	Immutable                 = chattr.FS_IMMUTABLE_FL    // Immutable file
	AppendOnly                = chattr.FS_APPEND_FL       // Writes to file may only append
	NoDumpFile                = chattr.FS_NODUMP_FL       // Do not dump file
	NoUpdateAtime             = chattr.FS_NOATIME_FL      // Do not update atime
	IsDirty                   = chattr.FS_DIRTY_FL        // Nobody knows what this does, lol.
	CompressedClusters        = chattr.FS_COMPRBLK_FL     // One or more compressed clusters
	NoCompress                = chattr.FS_NOCOMP_FL       // Don't compress
	EncFile                   = chattr.FS_ENCRYPT_FL      // Encrypted file
	BtreeFmt                  = chattr.FS_BTREE_FL        // Btree format dir
	HashIdxDir                = chattr.FS_INDEX_FL        // Hash-indexed directory
	AfsDir                    = chattr.FS_IMAGIC_FL       // AFS directory
	ReservedExt3              = chattr.FS_JOURNAL_DATA_FL // Reserved for ext3
	NoMergeTail               = chattr.FS_NOTAIL_FL       // File tail should not be merged
	DirSync                   = chattr.FS_DIRSYNC_FL      // dirsync behaviour (directories only)
	DirTop                    = chattr.FS_TOPDIR_FL       // Top of directory hierarchies
	ReservedExt4a             = chattr.FS_HUGE_FILE_FL    // Reserved for ext4
	Extents                   = chattr.FS_EXTENT_FL       // Extents
	LargeEaInode              = chattr.FS_EA_INODE_FL     // Inode used for large EA
	ReservedExt4b             = chattr.FS_EOFBLOCKS_FL    // Reserved for ext4
	NoCOWFile                 = chattr.FS_NOCOW_FL        // Do not cow file
	ReservedExt4c             = chattr.FS_INLINE_DATA_FL  // Reserved for ext4
	UseParentProjId           = chattr.FS_PROJINHERIT_FL  // Create with parents projid
	ReservedExt2              = chattr.FS_RESERVED_FL     // Reserved for ext2 lib
)

var (
	// AttrNameValueMap contains a mapping of attribute names (as designated by this package) to their flag values.
	AttrNameValueMap map[string]uint32 = map[string]uint32{
		"SecureDelete":       SecureDelete,
		"UnDelete":           UnDelete,
		"CompressFile":       CompressFile,
		"SyncUpdatechattr":   SyncUpdatechattr,
		"Immutable":          Immutable,
		"AppendOnly":         AppendOnly,
		"NoDumpFile":         NoDumpFile,
		"NoUpdateAtime":      NoUpdateAtime,
		"IsDirty":            IsDirty,
		"CompressedClusters": CompressedClusters,
		"NoCompress":         NoCompress,
		"EncFile":            EncFile,
		"BtreeFmt":           BtreeFmt,
		"HashIdxDir":         HashIdxDir,
		"AfsDir":             AfsDir,
		"ReservedExt3":       ReservedExt3,
		"NoMergeTail":        NoMergeTail,
		"DirSync":            DirSync,
		"DirTop":             DirTop,
		"ReservedExt4a":      ReservedExt4a,
		"Extents":            Extents,
		"LargeEaInode":       LargeEaInode,
		"ReservedExt4b":      ReservedExt4b,
		"NoCOWFile":          NoCOWFile,
		"ReservedExt4c":      ReservedExt4c,
		"UseParentProjId":    UseParentProjId,
		"ReservedExt2":       ReservedExt2,
	}
	/*
		AttrValueNameMap contains a mapping of attribute flags to their names (as designated by this package).
		Note the oddball here, BtreeFmt and HashIdxDir are actually the same value, so be forewarned.
	*/
	AttrValueNameMap map[uint32]string = map[uint32]string{
		SecureDelete:       "SecureDelete",
		UnDelete:           "UnDelete",
		CompressFile:       "CompressFile",
		SyncUpdatechattr:   "SyncUpdatechattr",
		Immutable:          "Immutable",
		AppendOnly:         "AppendOnly",
		NoDumpFile:         "NoDumpFile",
		NoUpdateAtime:      "NoUpdateAtime",
		IsDirty:            "IsDirty",
		CompressedClusters: "CompressedClusters",
		NoCompress:         "NoCompress",
		EncFile:            "EncFile",
		BtreeFmt:           "BtreeFmt|HashIdxDir", // Well THIS is silly and seems like an oversight. Both FS_BTREE_FL and FS_INDEX_FL have the same flag. Confirmed in kernel source.
		AfsDir:             "AfsDir",
		ReservedExt3:       "ReservedExt3",
		NoMergeTail:        "NoMergeTail",
		DirSync:            "DirSync",
		DirTop:             "DirTop",
		ReservedExt4a:      "ReservedExt4a",
		Extents:            "Extents",
		LargeEaInode:       "LargeEaInode",
		ReservedExt4b:      "ReservedExt4b",
		NoCOWFile:          "NoCOWFile",
		ReservedExt4c:      "ReservedExt4c",
		UseParentProjId:    "UseParentProjId",
		ReservedExt2:       "ReservedExt2",
	}
)