mycorrhiza/shroom/delete.go
Timur Ismagilov eb9acb718e Break a lot of stuff
Starring:
* Broken error localization for now (got in the way)
* The title for error pages is the same for all errors (who cares anyway)
* New bugs
* The brand new /rename/ handler
2022-02-19 19:42:32 +03:00

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package shroom
import (
"fmt"
"github.com/bouncepaw/mycorrhiza/hyphae/backlinks"
"github.com/bouncepaw/mycorrhiza/history"
"github.com/bouncepaw/mycorrhiza/hyphae"
"github.com/bouncepaw/mycorrhiza/l18n"
"github.com/bouncepaw/mycorrhiza/user"
)
// DeleteHypha deletes hypha and makes a history record about that.
func DeleteHypha(u *user.User, h hyphae.Hypha, lc *l18n.Localizer) error {
if err := CanDelete(u, h, lc); err != nil {
return err
}
hop := history.
Operation(history.TypeDeleteHypha).
WithMsg(fmt.Sprintf("Delete %s", h.CanonicalName())).
WithUser(u)
switch h := h.(type) {
case *hyphae.MediaHypha:
hop.WithFilesRemoved(h.MediaFilePath(), h.TextFilePath())
case *hyphae.TextualHypha:
hop.WithFilesRemoved(h.TextFilePath())
default:
panic("impossible")
}
originalText, _ := FetchTextFile(h)
hop.Apply()
if !hop.HasErrors() {
backlinks.UpdateBacklinksAfterDelete(h, originalText)
hyphae.DeleteHypha(h.(hyphae.ExistingHypha)) // we panicked before, so it's safe
}
return nil
}