package surf

import (
	"reflect"
	"strings"
	"testing"

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

// TestPierMountSmoke covers the MCP mount hook of phase 19.7 in a binary
// built without the summercms_mcp tag: mcp.enabled unset mounts nothing and
// changes nothing (D-30); mcp.enabled true fails boot naming the tag (D-33).
func TestPierMountSmoke(t *testing.T) {
	if mountPier != nil {
		t.Skip("mountPier is set: this binary carries the summercms_mcp tag")
	}
	plugins := []party.Plugin{dispatchPlugin{}}
	base, err := BuildRouter(transportApp(t, "development", map[string]string{"http.yaml": transportBodyLimits}), plugins)
	if err != nil {
		t.Fatal(err)
	}
	for name, mcp := range map[string]string{
		"unset":         "",
		"enabled false": "enabled: false\n",
		"only the path": "path: /mcp\n",
	} {
		t.Run(name, func(t *testing.T) {
			files := map[string]string{"http.yaml": transportBodyLimits}
			if mcp != "" {
				files["mcp.yaml"] = mcp
			}
			router, err := BuildRouter(transportApp(t, "development", files), plugins)
			if err != nil {
				t.Fatal(err)
			}
			for _, ri := range router.Routes() {
				if strings.HasPrefix(ri.Pattern, "/mcp") || strings.HasPrefix(ri.Pattern, "/.well-known/oauth-protected-resource") {
					t.Fatalf("route mounted while mcp is off: %+v", ri)
				}
			}
			if !reflect.DeepEqual(router.Routes(), base.Routes()) {
				t.Fatalf("route table differs from a build without the key:\n%+v\n%+v", router.Routes(), base.Routes())
			}
		})
	}
	_, err = BuildRouter(transportApp(t, "development", map[string]string{
		"http.yaml": transportBodyLimits,
		"mcp.yaml":  "enabled: true\n",
	}), plugins)
	if err == nil || !strings.Contains(err.Error(), "summercms_mcp") {
		t.Fatalf("mcp.enabled without the tag: err = %v, want an error naming summercms_mcp", err)
	}
}