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mycorrhiza/hyphae/backlinks/hooks.go
2021-12-31 00:59:28 +05:00

50 lines
1.8 KiB
Go

package backlinks
import (
"github.com/bouncepaw/mycomarkup/v3"
"github.com/bouncepaw/mycomarkup/v3/links"
"github.com/bouncepaw/mycomarkup/v3/mycocontext"
"github.com/bouncepaw/mycomarkup/v3/tools"
"github.com/bouncepaw/mycorrhiza/hyphae"
)
// UpdateBacklinksAfterEdit is a creation/editing hook for backlinks index
func UpdateBacklinksAfterEdit(h *hyphae.Hypha, oldText string) {
oldLinks := extractHyphaLinksFromContent(h.Name, oldText)
newLinks := extractHyphaLinks(h)
backlinkConveyor <- backlinkIndexEdit{h.Name, oldLinks, newLinks}
}
// UpdateBacklinksAfterDelete is a deletion hook for backlinks index
func UpdateBacklinksAfterDelete(h *hyphae.Hypha, oldText string) {
oldLinks := extractHyphaLinksFromContent(h.Name, oldText)
backlinkConveyor <- backlinkIndexDeletion{h.Name, oldLinks}
}
// UpdateBacklinksAfterRename is a renaming hook for backlinks index
func UpdateBacklinksAfterRename(h *hyphae.Hypha, oldName string) {
actualLinks := extractHyphaLinks(h)
backlinkConveyor <- backlinkIndexRenaming{oldName, h.Name, actualLinks}
}
// extractHyphaLinks extracts hypha links from a desired hypha
func extractHyphaLinks(h *hyphae.Hypha) []string {
return extractHyphaLinksFromContent(h.Name, fetchText(h))
}
// extractHyphaLinksFromContent extracts local hypha links from the provided text.
func extractHyphaLinksFromContent(hyphaName string, contents string) []string {
ctx, _ := mycocontext.ContextFromStringInput(hyphaName, contents)
linkVisitor, getLinks := tools.LinkVisitor(ctx)
// Ignore the result of BlockTree because we call it for linkVisitor.
_ = mycomarkup.BlockTree(ctx, linkVisitor)
foundLinks := getLinks()
var result []string
for _, link := range foundLinks {
if link.OfKind(links.LinkLocalHypha) {
result = append(result, link.TargetHypha())
}
}
return result
}