package surf

import (
	"net/http"
	"strings"
	"testing"

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

// Gap (c): RegisterHouseMiddlewareFactory duplicate-name failure. The
// non-house RegisterMiddlewareFactory duplicate path is already covered
// by TestDuplicateMiddlewareFactoryNamesPluginAndName.

func TestDuplicateHouseMiddlewareFactoryNamesPluginAndName(t *testing.T) {
	r := New(nil)
	fn := func(string) pact.Middleware {
		return func(next http.Handler) http.Handler { return next }
	}
	if err := r.RegisterHouseMiddlewareFactory("golem15.demo", "house.param", fn); err != nil {
		t.Fatal(err)
	}
	err := r.RegisterHouseMiddlewareFactory("golem15.other", "house.param", fn)
	if err == nil || !strings.Contains(err.Error(), "golem15.demo") || !strings.Contains(err.Error(), "house.param") {
		t.Fatalf("want plugin and factory name in error, got %v", err)
	}
}

func TestRegisterHouseMiddlewareFactoryEmptyName(t *testing.T) {
	r := New(nil)
	err := r.RegisterHouseMiddlewareFactory("golem15.demo", "", func(string) pact.Middleware {
		return func(next http.Handler) http.Handler { return next }
	})
	if err == nil || !strings.Contains(err.Error(), "golem15.demo") {
		t.Fatalf("empty factory name: %v", err)
	}
}

// Gap (g): Router.Routes() on an empty router, and an empty raw group
// (zero routes). Raw:true is inspectable on the Group itself; Routes()
// only lists registered handlers, so an empty raw group produces no
// RouteInfo — that is structural, not a missing assertion.

func TestRoutesEmptyRouter(t *testing.T) {
	r := New(nil)
	got := r.Routes()
	if got == nil {
		t.Fatal("empty router Routes() must return a non-nil empty slice")
	}
	if len(got) != 0 {
		t.Fatalf("empty router Routes() = %#v", got)
	}
	if (*Router)(nil).Routes() != nil {
		t.Fatal("nil router Routes() must return nil")
	}
}

func TestEmptyRawGroupRawFlagOnGroupNotRouteInfo(t *testing.T) {
	r := New(nil)
	var inner *Group
	r.GroupRaw("/oauth", nil, func(g pact.Router) {
		inner = g.(*Group)
	})
	if inner == nil || !inner.raw {
		t.Fatal("empty GroupRaw must keep raw=true on Group")
	}
	if len(r.Routes()) != 0 {
		t.Fatalf("empty raw group leaked RouteInfo: %v", r.Routes())
	}

	// Group.GroupRaw (nested) is a distinct method from Router.GroupRaw.
	r.Group("/wrap", nil, func(g pact.Router) {
		g.GroupRaw("/inner", nil, func(c pact.Router) {
			inner = c.(*Group)
		})
	})
	if inner == nil || !inner.raw {
		t.Fatal("nested GroupRaw must be raw")
	}
	if len(r.Routes()) != 0 {
		t.Fatalf("nested empty raw group leaked RouteInfo: %v", r.Routes())
	}
}