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package todolist
type Grouper struct{}
type GroupedTodos struct {
Groups map[string][]*Todo
}
func (g *Grouper) GroupByContext(todos []*Todo) *GroupedTodos {
groups := map[string][]*Todo{}
allContexts := []string{}
for _, todo := range todos {
allContexts = AddIfNotThere(allContexts, todo.Contexts)
}
for _, todo := range todos {
for _, context := range todo.Contexts {
groups[context] = append(groups[context], todo)
}
if len(todo.Contexts) == 0 {
groups["No contexts"] = append(groups["No contexts"], todo)
}
}
return &GroupedTodos{Groups: groups}
}
func (g *Grouper) GroupByProject(todos []*Todo) *GroupedTodos {
groups := map[string][]*Todo{}
allProjects := []string{}
for _, todo := range todos {
allProjects = AddIfNotThere(allProjects, todo.Projects)
}
for _, todo := range todos {
for _, project := range todo.Projects {
groups[project] = append(groups[project], todo)
}
if len(todo.Projects) == 0 {
groups["No projects"] = append(groups["No projects"], todo)
}
}
return &GroupedTodos{Groups: groups}
}
func (g *Grouper) GroupByNothing(todos []*Todo) *GroupedTodos {
groups := map[string][]*Todo{}
groups["all"] = todos
return &GroupedTodos{Groups: groups}
}
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