From 7dde603888aad233531f2592f190a671e47dbed3 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Thu, 4 Feb 2016 16:19:28 +0100
Subject: show list can now be updated


diff --git a/src/rhlibrary/show_selector_widget.go b/src/rhlibrary/show_selector_widget.go
index da121bd..45b706d 100644
--- a/src/rhlibrary/show_selector_widget.go
+++ b/src/rhlibrary/show_selector_widget.go
@@ -25,13 +25,20 @@
 package main
 
 import (
+	"sort"
 	"strconv"
+	"sync"
 
 	"code.helsinki.at/rhrd-go/player"
 	"code.helsinki.at/rhrd-go/rddb"
 	"github.com/gotk3/gotk3/gtk"
 )
 
+var (
+	showsMutex sync.Mutex
+	shows      rddb.ShowList
+)
+
 // carts, err := db.GetShowCartList(show)
 // if err != nil {
 // 	return err
@@ -50,6 +57,41 @@ import (
 // 	return nil
 // }
 
+func updateShows(box *gtk.ComboBoxText, db *rddb.DBChan) (err error) {
+	showsMutex.Lock()
+	defer showsMutex.Unlock()
+
+	if shows, err = db.GetShowList(rhuser.Username); err != nil {
+		return err
+	}
+
+	var keys []int
+	for k, _ := range shows {
+		keys = append(keys, int(k))
+	}
+	sort.Ints(keys)
+
+	box.RemoveAll()
+	for _, showid := range keys {
+		box.Append(strconv.FormatUint(uint64(showid), 10), shows[uint(showid)].Title)
+	}
+	return
+}
+
+func selectShow(box *gtk.ComboBoxText) {
+	showid64, err := strconv.ParseUint(box.GetActiveID(), 10, 32)
+	if err != nil {
+		rhdl.Printf("invalid show-id in combo box: %v", err)
+		return
+	}
+	showid := uint(showid64)
+
+	showsMutex.Lock()
+	defer showsMutex.Unlock()
+
+	rhdl.Printf("show %d is now selected: %s", showid, shows[showid].Title)
+}
+
 func addShowComboBox(grid *gtk.Grid, db *rddb.DBChan) (err error) {
 	var label *gtk.Label
 	if label, err = gtk.LabelNew("Sendung auswählen"); err != nil {
@@ -62,26 +104,13 @@ func addShowComboBox(grid *gtk.Grid, db *rddb.DBChan) (err error) {
 		return
 	}
 
-	shows, err := db.GetShowList(rhuser.Username)
-	if err != nil {
-		rhdl.Println(err) // TODO: feedback at GUI?
+	if err = updateShows(box, db); err != nil {
 		return err
 	}
 
-	for _, show := range shows {
-		box.Append(strconv.FormatUint(uint64(show.ID), 10), show.Title)
-	}
-	box.SetActive(0)
-
-	box.Connect("changed", func(_ *gtk.ComboBoxText) {
-		idx, err := strconv.ParseUint(box.GetActiveID(), 10, 32)
-		if err != nil {
-			rhdl.Printf("invalid show-id in combo box: %v", err)
-			return
-		}
+	box.Connect("changed", func(_ *gtk.ComboBoxText) { selectShow(box) })
 
-		rhdl.Printf("show %d is now selected", idx)
-	})
+	box.SetActive(0)
 
 	grid.Attach(box, 2, 1, 1, 1)
 	return
-- 
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