// StatFS sets filesystem metadata.
//
// Required for fuse.FileSystem.
func (k *KodingNetworkFS) StatFS(ctx context.Context, op *fuseops.StatFSOp) error {
	ds := k.DiskInfo

	op.BlockSize = ds.BlockSize
	op.Blocks = ds.BlocksTotal
	op.BlocksFree = ds.BlocksFree
	op.BlocksAvailable = op.BlocksFree

	return nil
}

func (fs *Goofys) StatFS(
	ctx context.Context,
	op *fuseops.StatFSOp) (err error) {

	const BLOCK_SIZE = 4096
	const TOTAL_SPACE = 1 * 1024 * 1024 * 1024 * 1024 * 1024 // 1PB
	const TOTAL_BLOCKS = TOTAL_SPACE / BLOCK_SIZE
	const INODES = 1 * 1000 * 1000 * 1000 // 1 billion
	op.BlockSize = BLOCK_SIZE
	op.Blocks = TOTAL_BLOCKS
	op.BlocksFree = TOTAL_BLOCKS
	op.BlocksAvailable = TOTAL_BLOCKS
	op.IoSize = 1 * 1024 * 1024 // 1MB
	op.Inodes = INODES
	op.InodesFree = INODES
	return
}

func (fs *fileSystem) StatFS(
	ctx context.Context,
	op *fuseops.StatFSOp) (err error) {
	// Simulate a large amount of free space so that the Finder doesn't refuse to
	// copy in files. (See issue #125.) Use 2^17 as the block size because that
	// is the largest that OS X will pass on.
	op.BlockSize = 1 << 17
	op.Blocks = 1 << 33
	op.BlocksFree = op.Blocks
	op.BlocksAvailable = op.Blocks

	// Similarly with inodes.
	op.Inodes = 1 << 50
	op.InodesFree = op.Inodes

	// Prefer large transfers. This is the largest value that OS X will
	// faithfully pass on, according to fuseops/ops.go.
	op.IoSize = 1 << 20

	return
}