package validate

import (
	"strings"
	"testing"

	"thehouseoficarus/internal/behavior"
)

// Regression: a talk config with nodes but no "start" node is dead content at
// runtime; validation must report it.
func TestValidateTalkConfigRequiresStartNode(t *testing.T) {
	cfg := &behavior.TalkConfig{Nodes: map[string]behavior.TalkNode{
		"greet": {Messages: []string{"hi"}},
	}}
	issues := validateTalkConfig("test", cfg, nil, nil, nil, nil)
	found := false
	for _, iss := range issues {
		if strings.Contains(iss.Message, "start") {
			found = true
		}
	}
	if !found {
		t.Fatalf("missing start node not reported: %+v", issues)
	}

	clean := &behavior.TalkConfig{Nodes: map[string]behavior.TalkNode{"start": {}}}
	for _, iss := range validateTalkConfig("test", clean, nil, nil, nil, nil) {
		if strings.Contains(iss.Message, "start") {
			t.Fatalf("start node wrongly reported: %+v", iss)
		}
	}
}