implement relation

cmd/todoist/cmd/today.go

@@ -23,16 +23,17 @@ var todayCmd = &cobra.Command{
 		sort.Slice(items, func(i, j int) bool {
 			return items[i].DueDateUtc.Before(items[j].DueDateUtc)
 		})
+		relations := client.Relation.Items(items)
 		var rows [][]todoist.ColorStringer
 		for _, i := range items {
-			var project todoist.Project
-			if p := client.Project.Resolve(i.ProjectID); p != nil {
-				project = *p
+			project := todoist.Project{}
+			if v, ok := relations.Projects[i.ProjectID]; ok {
+				project = v
 			}
-			var labels []string
-			for _, l := range i.Labels {
-				if j := client.Label.Resolve(l); j != nil {
-					labels = append(labels, j.String())
+			labels := []string{}
+			for _, lid := range i.Labels {
+				if v, ok := relations.Labels[lid]; ok {
+					labels = append(labels, v.String())
 				}
 			}
 			rows = append(rows, []todoist.ColorStringer{

todoist/client.go

@@ -25,6 +25,7 @@ type Client struct {
 	Item       *ItemClient
 	Label      *LabelClient
 	Project    *ProjectClient
+	Relation   *RelationClient
 	queue      []Command
 }
 
@@ -77,6 +78,7 @@ func NewClient(endpoint, token, sync_token, cache_dir string, logger *log.Logger
 	c.Item = &ItemClient{c, &itemCache{&c.syncState.Items}}
 	c.Label = &LabelClient{c, &labelCache{&c.syncState.Labels}}
 	c.Project = &ProjectClient{c, &projectCache{&c.syncState.Projects}}
+	c.Relation = &RelationClient{c}
 	return c, nil
 }
 

todoist/relation.go

@@ -0,0 +1,32 @@
+package todoist
+
+type RelationClient struct {
+	*Client
+}
+
+type Relations struct {
+	//Users map[ID]User
+	Projects map[ID]Project
+	Labels   map[ID]Label
+}
+
+func (c RelationClient) Items(items []Item) Relations {
+	res := Relations{Projects: map[ID]Project{}, Labels: map[ID]Label{}}
+	for _, item := range items {
+		if _, ok := res.Projects[item.ProjectID]; !ok {
+			p := c.Project.Resolve(item.ProjectID)
+			if p != nil {
+				res.Projects[item.ProjectID] = *p
+			}
+		}
+		for _, id := range item.Labels {
+			if _, ok := res.Labels[id]; !ok {
+				l := c.Label.Resolve(id)
+				if l != nil {
+					res.Labels[id] = *l
+				}
+			}
+		}
+	}
+	return res
+}