feat: add party-size queueing and call modes

server/internal/domain/domain_test.go

@@ -7,9 +7,9 @@ import (
 	"calllinesystem/server/internal/model"
 )
 
-func TestETAUsesIntervalForEveryNumber(t *testing.T) {
+func TestETAUsesIntervalForEveryPersonAhead(t *testing.T) {
 	result, err := CalculateETA(ETAInput{
-		PeopleAhead: 9, IntervalPerNumber: 90 * time.Second, Running: true,
+		PeopleAhead: 9, IntervalPerPerson: 90 * time.Second, Running: true,
 	})
 	if err != nil || !result.Available {
 		t.Fatalf("got %#v, %v", result, err)
@@ -19,6 +19,32 @@ func TestETAUsesIntervalForEveryNumber(t *testing.T) {
 	}
 }
 
+func TestETAExcludesCurrentParty(t *testing.T) {
+	result, err := CalculateETA(ETAInput{PeopleAhead: 0, IntervalPerPerson: 90 * time.Second, Running: true})
+	if err != nil || !result.Available || result.EstimateMinutes != 0 {
+		t.Fatalf("got %#v, %v", result, err)
+	}
+}
+
+func TestSelectTicketsForCall(t *testing.T) {
+	tickets := []model.QueueTicket{
+		{ID: "one", PartySize: 3},
+		{ID: "two", PartySize: 4},
+		{ID: "three", PartySize: 2},
+	}
+	byTicket, people, err := SelectTicketsForCall(tickets, model.CallModeTicket, 2)
+	if err != nil || len(byTicket) != 2 || people != 7 {
+		t.Fatalf("ticket selection = %#v, %d, %v", byTicket, people, err)
+	}
+	byPeople, people, err := SelectTicketsForCall(tickets, model.CallModePeople, 5)
+	if err != nil || len(byPeople) != 1 || people != 3 || byPeople[0].ID != "one" {
+		t.Fatalf("people selection = %#v, %d, %v", byPeople, people, err)
+	}
+	if _, _, err := SelectTicketsForCall(tickets, model.CallModePeople, 2); err != ErrFirstTicketExceedsPeopleTarget {
+		t.Fatalf("expected first-ticket overflow, got %v", err)
+	}
+}
+
 func TestETAUnavailableWhenPaused(t *testing.T) {
 	result, err := CalculateETA(ETAInput{Running: false})
 	if err != nil || result.Available || result.Reason != "queue_not_running" {
@@ -26,6 +52,26 @@ func TestETAUnavailableWhenPaused(t *testing.T) {
 	}
 }
 
+func TestDisplayExperiencedPeopleUsesConfiguredStartUntilActualCountExceedsIt(t *testing.T) {
+	tests := []struct {
+		start  int
+		actual int64
+		want   int64
+	}{
+		{start: 0, actual: 0, want: 0},
+		{start: 20, actual: 0, want: 20},
+		{start: 20, actual: 19, want: 20},
+		{start: 20, actual: 20, want: 20},
+		{start: 20, actual: 21, want: 21},
+		{start: -1, actual: -3, want: 0},
+	}
+	for _, test := range tests {
+		if got := DisplayExperiencedPeople(test.start, test.actual); got != test.want {
+			t.Fatalf("DisplayExperiencedPeople(%d, %d) = %d, want %d", test.start, test.actual, got, test.want)
+		}
+	}
+}
+
 func TestTicketRules(t *testing.T) {
 	if !CanTransitionTicket(model.TicketCalled, model.TicketArrived) || !CanTransitionTicket(model.TicketArrived, model.TicketCompleted) {
 		t.Fatal("expected normal transitions")