//go:build linux

package collect

import "syscall"

type FSUsage struct {
	Path  string `json:"path"`
	Total uint64 `json:"total"`
	Free  uint64 `json:"free"`
}

func ReadFS(path string) (FSUsage, error) {
	var st syscall.Statfs_t
	if err := syscall.Statfs(path, &st); err != nil {
		return FSUsage{}, err
	}
	bs := uint64(st.Bsize)
	return FSUsage{Path: path, Total: st.Blocks * bs, Free: st.Bavail * bs}, nil
}