package catalogue

import (
	"strings"
	"testing"
)

func configured(block map[string]any) SettingsBy {
	return SettingsBy{"media": {{From: "node anchor",
		Placement: map[string]any{EndpointsSetting: block}}}}
}

// An endpoint the module does not declare reaches nothing, and the refusal says what it does declare.
func TestConfiguringAnEndpointTheModuleLacksIsRefused(t *testing.T) {
	_, err := Endpoints(aMediaServer(), configured(map[string]any{
		"admin": map[string]any{"reach": ReachInternal}})["media"])
	if err == nil || !strings.Contains(err.Error(), "does not declare") {
		t.Fatalf("configuring an absent endpoint was accepted: %v", err)
	}
	if err != nil && !strings.Contains(err.Error(), "stream") {
		t.Fatalf("the refusal does not name what the module declares: %v", err)
	}
}

func TestAReachInABlockIsHeldToTheFourValues(t *testing.T) {
	_, err := Endpoints(aMediaServer(), configured(map[string]any{
		"web": map[string]any{"reach": "mesh"}})["media"])
	if err == nil || !strings.Contains(err.Error(), "a reach is") {
		t.Fatalf("a filter word was accepted as a reach: %v", err)
	}
}

// And the same for its reach, said once here and once through the older key.
func TestAnEndpointWhoseReachIsAlsoExposedIsRefused(t *testing.T) {
	_, err := Endpoints(aMediaServer(), []Layer{{From: "node anchor", Placement: map[string]any{
		EndpointsSetting: map[string]any{"web": map[string]any{"reach": ReachInternal}},
		ExposeSetting:    map[string]any{"80": FromEverywhere},
	}}})
	if err == nil || !strings.Contains(err.Error(), "same thing in different words") {
		t.Fatalf("a reach said two ways was accepted: %v", err)
	}
}

// A module whose endpoints are unnamed cannot be configured this way, and is told so rather than
// having a block silently reach nothing — which is every module in the catalogue today.
func TestAModuleWithNoNamedEndpointsIsToldSo(t *testing.T) {
	m := Manifest{Module: "media", Listens: []Listening{{Port: 80, From: FromMesh}}}
	_, err := Endpoints(m, configured(map[string]any{"web": map[string]any{"reach": ReachBoth}})["media"])
	if err == nil || !strings.Contains(err.Error(), "no endpoints by name") {
		t.Fatalf("a module with no named endpoints accepted a block: %v", err)
	}
}