Add TlepCenter for cgui

cmd/cgui/tleps.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"errors"
+	"log"
+	"sync"
+
+	"git.qowevisa.me/Qowevisa/gotell/gmyerr"
+	"git.qowevisa.me/Qowevisa/gotell/tlep"
+)
+
+var (
+	tlepCenter TlepCenter
+)
+
+type TlepCenter struct {
+	TLEPs map[uint16]*tlep.TLEP
+	Mu    sync.Mutex
+}
+
+func (t *TlepCenter) Init() {
+	t.TLEPs = make(map[uint16]*tlep.TLEP)
+}
+
+var (
+	ERROR_ALREADY_HAVE = errors.New("Already taken")
+	ERROR_DONT_HAVE    = errors.New("Not found")
+)
+
+func (t *TlepCenter) AddUser(id uint16, name string) error {
+	t.Mu.Lock()
+	defer t.Mu.Unlock()
+	_, alreadyHave := t.TLEPs[id]
+	if alreadyHave {
+		return ERROR_ALREADY_HAVE
+	}
+	val, err := tlep.InitTLEP(name)
+	if err != nil {
+		return gmyerr.WrapPrefix("tlep.InitTLEP", err)
+	}
+	t.TLEPs[id] = val
+	log.Printf("TLEPs: add %p for %d id\n", val, id)
+	return nil
+}
+
+func (t *TlepCenter) DeleteIfHaveOne(id uint16) {
+	t.Mu.Lock()
+	defer t.Mu.Unlock()
+	val, found := t.TLEPs[id]
+	if !found {
+		log.Printf("TLEP with %d id is not found; Can not delete\n", id)
+		return
+	}
+	delete(t.TLEPs, id)
+	log.Printf("TLEP with %v val and %d id was found; TLEP is deleted\n", val, id)
+}
+
+func (t *TlepCenter) GetTLEP(id uint16) (*tlep.TLEP, error) {
+	name, have := t.TLEPs[id]
+	if !have {
+		return nil, ERROR_DONT_HAVE
+	}
+	return name, nil
+}