package catalogue

import (
	"slices"
	"strings"
	"testing"
)

// The node-uplink seat's verbs (novox/hq ADR 0241): promised and routed, staged — not yet a condition of
// holding — so the holders of today still hold it, a holder may name them, and nothing it does not promise.

func uplinkSeat(t *testing.T) Seat {
	t.Helper()
	for _, s := range DefaultSeats() {
		if s.Name == "node-uplink" {
			return s
		}
	}
	t.Fatal("no node-uplink seat")
	return Seat{}
}

func TestTheUplinkSeatPromisesItsVerbsAndRequiresNoneYet(t *testing.T) {
	seat := uplinkSeat(t)
	var names []string
	for _, v := range seat.Serves {
		names = append(names, v.Name)
	}
	if !slices.Equal(names, []string{"resolvers", "links"}) || len(seat.Required()) != 0 {
		t.Fatalf("node-uplink promises %v and requires %v", names, seat.Required())
	}
	today := Manifest{Module: "networkmanager", Version: "1", Claims: []Claim{{Name: "node-uplink", Scope: ScopeNode}}}
	if err := CanHold(today, seat); err != nil {
		t.Fatalf("a holder that serves no verb yet is refused: %v", err)
	}
	serving := today
	serving.Claims = []Claim{{Name: "node-uplink", Scope: ScopeNode, Serves: []string{"resolvers", "links"}}}
	if err := CanHold(serving, seat); err != nil {
		t.Fatalf("a holder serving both is refused: %v", err)
	}
	typo := today
	typo.Claims = []Claim{{Name: "node-uplink", Scope: ScopeNode, Serves: []string{"resolver"}}}
	if err := CanHold(typo, seat); err == nil || !strings.Contains(err.Error(), "does not promise") {
		t.Fatalf("a verb the seat does not promise was accepted: %v", err)
	}
}

func TestAStagedVerbIsNeverStoredAndComesBackFromTheBinary(t *testing.T) {
	seat := uplinkSeat(t)
	if stored := seat.Stored(); len(stored.Serves) != 0 {
		t.Fatalf("the row would keep %v", stored.Serves)
	}
	before := seats
	t.Cleanup(func() { seats = before })
	// A row as the store keeps it: no protocol of its own. And one an operator gave a verb of its own.
	UseSeats([]Seat{{Name: "node-uplink", Scope: ScopeNode}, {Name: "node-service-manager", Scope: ScopeNode}})
	for _, s := range Seats() {
		if s.Name == "node-uplink" && (len(s.Serves) != 2 || len(s.Staged) != 2) {
			t.Fatalf("the working set's node-uplink is %+v", s)
		}
	}
	UseSeats([]Seat{{Name: "node-uplink", Scope: ScopeNode, Serves: []Verb{{Name: "operators-own"}}}})
	for _, s := range Seats() {
		if s.Name == "node-uplink" && len(s.Serves) != 3 {
			t.Fatalf("a row with a verb of its own lost or did not gain the staged ones: %+v", s.Serves)
		}
	}
}