79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
// Package hyphae is for the MediaHypha type, hypha storage and stuff like that. It shall not depend on mycorrhiza modules other than util.
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package hyphae
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import (
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"log"
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"path/filepath"
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"sync"
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"github.com/bouncepaw/mycorrhiza/files"
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)
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// MediaHypha keeps vital information about a media hypha
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type MediaHypha struct {
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sync.RWMutex
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name string // Canonical name
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Exists bool
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TextPath string // == "" => no text part
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binaryPath string // == "" => no attachment
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}
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func (h *MediaHypha) SetName(s string) { h.name = s }
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func (h *MediaHypha) BinaryPath() string { return h.binaryPath }
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func (h *MediaHypha) SetBinaryPath(s string) { h.binaryPath = s }
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func (h *MediaHypha) CanonicalName() string {
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return h.name
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}
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func (h *MediaHypha) Kind() HyphaKind {
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if !h.DoesExist() {
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return HyphaEmpty
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}
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if h.HasAttachment() {
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return HyphaMedia
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}
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return HyphaText
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}
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func (h *MediaHypha) DoesExist() bool { // TODO: rename
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return h.Exists
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}
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func (h *MediaHypha) HasTextPart() bool {
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return h.TextPath != ""
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}
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// TextPartPath returns rooted path to the file where the text part should be.
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func (h *MediaHypha) TextPartPath() string {
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if h.TextPath == "" {
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return filepath.Join(files.HyphaeDir(), h.name+".myco")
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}
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return h.TextPath
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}
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// HasAttachment is true if the hypha has an attachment.
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func (h *MediaHypha) HasAttachment() bool {
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return h.binaryPath != ""
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}
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// mergeIn merges in content file paths from a different hypha object. Prints warnings sometimes.
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func (h *MediaHypha) mergeIn(oh Hypher) {
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if h == oh {
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return
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}
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h.Lock()
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if h.TextPath == "" && oh.HasTextPart() {
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h.TextPath = oh.TextPartPath()
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}
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if oh := oh.(*MediaHypha); oh.Kind() == HyphaMedia {
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if h.binaryPath != "" {
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log.Println("There is a file collision for attachment of a hypha:", h.binaryPath, "and", oh.binaryPath, "-- going on with the latter")
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}
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h.binaryPath = oh.binaryPath
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}
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h.Unlock()
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}
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