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mycorrhiza/hypha.go
2020-06-13 16:18:11 +05:00

67 lines
2.0 KiB
Go

package main
import (
"errors"
"fmt"
"strconv"
)
type Hypha struct {
// Hypha is physically located here. Most fields below are stored in <path>/mm.ini (mm for metametadata). Its revisions are physically located in <path>/<n>/ subfolders. <n> ∈ [0;∞] with 0 being latest revision, 1 the first.
Path string
// Every hypha was created at some point
CreationTime int `json:"creationTime"`
// Hypha has name but it can be changed
Name string `json:"name"`
// Hypha can be deleted. If it is deleted, it is not indexed by most of the software but still can be recovered at some point.
Deleted bool `json:"deleted"`
// Fields below are not part of m.ini and are created when traversing the file tree.
// Hypha can be a child of any other hypha except its children. The parent hypha is stored in <path>/..
ParentName string
// Hypha can have any number of children which are stored as subfolders in <path>.
ChildrenNames []string
Revisions []Revision
}
func (h Hypha) String() string {
var revbuf string
for _, r := range h.Revisions {
revbuf += r.String() + "\n"
}
return fmt.Sprintf("Hypha %v {\n\t"+
"path %v\n\t"+
"created at %v\n\t"+
"child of %v\n\t"+
"parent of %v\n\t"+
"Having these revisions:\n%v"+
"}\n", h.Name, h.Path, h.CreationTime, h.ParentName, h.ChildrenNames,
revbuf)
}
func GetRevision(hyphae map[string]*Hypha, hyphaName string, rev string) (Revision, error) {
for name, _ := range hyphae {
if name == hyphaName {
for _, r := range hyphae[name].Revisions {
id, err := strconv.Atoi(rev)
if err != nil {
return Revision{}, err
}
if r.Id == id {
return r, nil
}
}
}
}
return Revision{}, errors.New("Some error idk")
}
// `rev` is the id of revision to render. If it = 0, the last one is rendered. If the revision is not found, an error is returned.
func (h Hypha) Render(hyphae map[string]*Hypha, rev int) (ret string, err error) {
for _, r := range h.Revisions {
if r.Id == rev {
return r.Render(hyphae)
}
}
return "", errors.New("Revision was not found")
}