feat(tasks): add label color CRUD store methods

1 files changed, 84 insertions, 0 deletions

diff --git a/internal/store/labels_test.go b/internal/store/labels_test.go
new file mode 100644
index 0000000..4e97084
--- /dev/null
+++ b/internal/store/labels_test.go
@@ -0,0 +1,84 @@
+package store
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestSetTaskLabels_UpdatesLabels(t *testing.T) {
+	s := newNativeTasksTestStore(t)
+
+	if err := s.SetTaskLabels("real-1", []string{"chore", "urgent"}); err != nil {
+		t.Fatalf("SetTaskLabels: %v", err)
+	}
+
+	task, err := s.GetNativeTaskByID("real-1")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(task.Labels) != 2 || task.Labels[0] != "chore" || task.Labels[1] != "urgent" {
+		t.Errorf("Labels = %v, want [chore urgent]", task.Labels)
+	}
+}
+
+func TestSetTaskLabels_EmptyList_ClearsLabels(t *testing.T) {
+	s := newNativeTasksTestStore(t)
+	if err := s.SetTaskLabels("real-1", []string{"chore"}); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := s.SetTaskLabels("real-1", []string{}); err != nil {
+		t.Fatalf("SetTaskLabels (clear): %v", err)
+	}
+
+	task, err := s.GetNativeTaskByID("real-1")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(task.Labels) != 0 {
+		t.Errorf("Labels = %v, want empty", task.Labels)
+	}
+}
+
+func TestSetTaskLabels_UnknownID_ReturnsErrNotFound(t *testing.T) {
+	s := newNativeTasksTestStore(t)
+	err := s.SetTaskLabels("does-not-exist", []string{"chore"})
+	if !errors.Is(err, ErrNativeTaskNotFound) {
+		t.Fatalf("expected ErrNativeTaskNotFound, got %v", err)
+	}
+}
+
+func TestSetLabelColor_ThenGetLabelColors_ReturnsIt(t *testing.T) {
+	s := newNativeTasksTestStore(t)
+
+	if err := s.SetLabelColor("chore", "#F59E0B"); err != nil {
+		t.Fatalf("SetLabelColor: %v", err)
+	}
+
+	colors, err := s.GetLabelColors()
+	if err != nil {
+		t.Fatalf("GetLabelColors: %v", err)
+	}
+	if len(colors) != 1 || colors[0].Name != "chore" || colors[0].Color != "#F59E0B" {
+		t.Fatalf("colors = %+v, want [{chore #F59E0B}]", colors)
+	}
+}
+
+func TestSetLabelColor_SameName_Overwrites(t *testing.T) {
+	s := newNativeTasksTestStore(t)
+	if err := s.SetLabelColor("chore", "#F59E0B"); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := s.SetLabelColor("chore", "#EF4444"); err != nil {
+		t.Fatalf("SetLabelColor (overwrite): %v", err)
+	}
+
+	colors, err := s.GetLabelColors()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(colors) != 1 || colors[0].Color != "#EF4444" {
+		t.Fatalf("colors = %+v, want a single entry with the overwritten color", colors)
+	}
+}