package signpost_test

import (
	"strings"
	"testing"

	"git.golem15.com/golem15/summercms/modules/pact"
	"git.golem15.com/golem15/summercms/modules/signpost"
)

// TestRegistryDuplicateKey pins D-01: two plugins registering the same menu
// item type key fail Activate, the error names the key and both plugin IDs in
// activation order, and nothing is published on the app.
func TestRegistryDuplicateKey(t *testing.T) {
	app := smokeApp(t, "")
	err := signpost.Activate(app, []typesPlugin{
		{id: "acme.blog", types: []pact.MenuItemType{
			{Key: "acme-page", DefaultPattern: "/:slug", Resolve: echo},
			{Key: "acme-post", DefaultPattern: "/blog/:slug", Resolve: echo},
		}},
		{id: "acme.news", types: []pact.MenuItemType{{Key: "acme-post", DefaultPattern: "/news/:slug", Resolve: echo}}},
	})
	if err == nil {
		t.Fatal("Activate accepted a duplicate menu item type key")
	}
	msg := err.Error()
	if !strings.HasPrefix(msg, "signpost: ") || !strings.Contains(msg, `"acme-post"`) {
		t.Fatalf("error = %q, want the signpost prefix and the key", msg)
	}
	first, second := strings.Index(msg, "acme.blog"), strings.Index(msg, "acme.news")
	if first < 0 || second < 0 || first > second {
		t.Fatalf("error = %q, want both plugin IDs, first registrant first", msg)
	}
	if _, ok := app.Lookup[*signpost.Registry](); ok {
		t.Fatal("a registry was published after a failed Activate")
	}

	// The same key twice inside one plugin is a duplicate too.
	err = signpost.Activate(smokeApp(t, ""), []typesPlugin{{id: "acme.blog", types: []pact.MenuItemType{
		{Key: "acme-post", DefaultPattern: "/a", Resolve: echo},
		{Key: "acme-post", DefaultPattern: "/b", Resolve: echo},
	}}})
	if err == nil || !strings.Contains(err.Error(), "acme-post") {
		t.Fatalf("duplicate inside one plugin: error = %v", err)
	}
}