package projection

import (
	"context"
	"testing"

	"github.com/stretchr/testify/require"
	"golang.org/x/text/language"

	"github.com/zitadel/zitadel/internal/database"
	"github.com/zitadel/zitadel/internal/domain"
	"github.com/zitadel/zitadel/internal/eventstore"
	"github.com/zitadel/zitadel/internal/eventstore/handler/v2"
	"github.com/zitadel/zitadel/internal/repository/instance"
	"github.com/zitadel/zitadel/internal/repository/org"
	"github.com/zitadel/zitadel/internal/repository/project"
	"github.com/zitadel/zitadel/internal/repository/user"
	"github.com/zitadel/zitadel/internal/repository/usergrant"
	"github.com/zitadel/zitadel/internal/zerrors"
)

func TestUserGrantProjection_reduces(t *testing.T) {
	type args struct {
		event func(t *testing.T) eventstore.Event
	}
	tests := []struct {
		name   string
		args   args
		reduce func(event eventstore.Event) (*handler.Statement, error)
		want   wantReduce
	}{{
		name: "reduceAdded, multiple import",
		args: args{
			event: getEvent(
				testEvent(
					usergrant.UserGrantAddedType,
					usergrant.AggregateType,
					[]byte(`{
						"userId": "user-id",
						"projectId": "project-id",
						"roleKeys": ["role"]
					}`),
				), usergrant.UserGrantAddedEventMapper),
		},
		reduce: (&userGrantProjection{
			es: newMockEventStore().
				appendFilterResponse([]eventstore.Event{
					user.NewHumanAddedEvent(context.Background(),
						&user.NewAggregate("user-id", "org2").Aggregate,
						"username1",
						"firstname1",
						"lastname1",
						"nickname1",
						"displayname1",
						language.German,
						domain.GenderMale,
						"email1",
						true,
					),
					user.NewHumanAddedEvent(context.Background(),
						&user.NewAggregate("user-id", "org1").Aggregate,
						"username1",
						"firstname1",
						"lastname1",
						"nickname1",
						"displayname1",
						language.German,
						domain.GenderMale,
						"email1",
						true,
					),
					project.NewProjectAddedEvent(context.Background(),
						&project.NewAggregate("project-id", "org2").Aggregate,
						"project",
						false,
						false,
						false,
						domain.PrivateLabelingSettingUnspecified,
					),
				}),
		}).reduceAdded,
		want: wantReduce{
			aggregateType: usergrant.AggregateType,
			sequence:      15,
			executer: &testExecuter{
				executions: []execution{
					{
						expectedStmt: "INSERT INTO projections.user_grants4 (id, resource_owner, instance_id, creation_date, change_date, sequence, user_id, resource_owner_user, project_id, resource_owner_project, grant_id, granted_org, roles, state) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)",
						expectedArgs: []interface{}{
							"agg-id",
							"ro-id",
							"instance-id",
							anyArg{},
							anyArg{},
							uint64(15),
							"user-id",
							"org1",
							"project-id",
							"org2",
							"",
							"",
							database.TextArray[string]{"role"},
							domain.UserGrantStateActive,
						},
					},
				},
			},
		},
	},
		{
			name: "reduceAdded",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantAddedType,
						usergrant.AggregateType,
						[]byte(`{
						"userId": "user-id",
						"projectId": "project-id",
						"roleKeys": ["role"]
					}`),
					), usergrant.UserGrantAddedEventMapper),
			},
			reduce: (&userGrantProjection{
				es: newMockEventStore().
					appendFilterResponse([]eventstore.Event{
						user.NewHumanAddedEvent(context.Background(),
							&user.NewAggregate("user-id", "org1").Aggregate,
							"username1",
							"firstname1",
							"lastname1",
							"nickname1",
							"displayname1",
							language.German,
							domain.GenderMale,
							"email1",
							true,
						),
						project.NewProjectAddedEvent(context.Background(),
							&project.NewAggregate("project-id", "org2").Aggregate,
							"project",
							false,
							false,
							false,
							domain.PrivateLabelingSettingUnspecified,
						),
					}),
			}).reduceAdded,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "INSERT INTO projections.user_grants4 (id, resource_owner, instance_id, creation_date, change_date, sequence, user_id, resource_owner_user, project_id, resource_owner_project, grant_id, granted_org, roles, state) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)",
							expectedArgs: []interface{}{
								"agg-id",
								"ro-id",
								"instance-id",
								anyArg{},
								anyArg{},
								uint64(15),
								"user-id",
								"org1",
								"project-id",
								"org2",
								"",
								"",
								database.TextArray[string]{"role"},
								domain.UserGrantStateActive,
							},
						},
					},
				},
			},
		},
		{
			name: "reduceAdded with projectgrant",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantAddedType,
						usergrant.AggregateType,
						[]byte(`{
						"userId": "user-id",
						"projectId": "project-id",
                        "grantId": "grant-id",
						"roleKeys": ["role"]
					}`),
					), usergrant.UserGrantAddedEventMapper),
			},
			reduce: (&userGrantProjection{
				es: newMockEventStore().
					appendFilterResponse([]eventstore.Event{
						user.NewHumanAddedEvent(context.Background(),
							&user.NewAggregate("user-id", "org1").Aggregate,
							"username1",
							"firstname1",
							"lastname1",
							"nickname1",
							"displayname1",
							language.German,
							domain.GenderMale,
							"email1",
							true,
						),
						project.NewProjectAddedEvent(context.Background(),
							&project.NewAggregate("project-id", "org2").Aggregate,
							"project", true, true, true,
							domain.PrivateLabelingSettingUnspecified,
						),
						project.NewGrantAddedEvent(context.Background(),
							&project.NewAggregate("project-id", "org2").Aggregate,
							"grant-id",
							"org3",
							[]string{},
						),
					}),
			}).reduceAdded,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "INSERT INTO projections.user_grants4 (id, resource_owner, instance_id, creation_date, change_date, sequence, user_id, resource_owner_user, project_id, resource_owner_project, grant_id, granted_org, roles, state) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)",
							expectedArgs: []interface{}{
								"agg-id",
								"ro-id",
								"instance-id",
								anyArg{},
								anyArg{},
								uint64(15),
								"user-id",
								"org1",
								"project-id",
								"org2",
								"grant-id",
								"org3",
								database.TextArray[string]{"role"},
								domain.UserGrantStateActive,
							},
						},
					},
				},
			},
		},
		{
			name: "reduceChanged",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantChangedType,
						usergrant.AggregateType,
						[]byte(`{
						"roleKeys": ["role"]
					}`),
					), usergrant.UserGrantChangedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceChanged,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "UPDATE projections.user_grants4 SET (change_date, roles, sequence) = ($1, $2, $3) WHERE (id = $4) AND (instance_id = $5)",
							expectedArgs: []interface{}{
								anyArg{},
								database.TextArray[string]{"role"},
								uint64(15),
								"agg-id",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceCascadeChanged",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantCascadeChangedType,
						usergrant.AggregateType,
						[]byte(`{
						"roleKeys": ["role"]
					}`),
					), usergrant.UserGrantCascadeChangedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceChanged,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "UPDATE projections.user_grants4 SET (change_date, roles, sequence) = ($1, $2, $3) WHERE (id = $4) AND (instance_id = $5)",
							expectedArgs: []interface{}{
								anyArg{},
								database.TextArray[string]{"role"},
								uint64(15),
								"agg-id",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceRemoved",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantRemovedType,
						usergrant.AggregateType,
						nil,
					), usergrant.UserGrantRemovedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceRemoved,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (id = $1) AND (instance_id = $2)",
							expectedArgs: []interface{}{
								anyArg{},
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "instance reduceInstanceRemoved",
			args: args{
				event: getEvent(
					testEvent(
						instance.InstanceRemovedEventType,
						instance.AggregateType,
						nil,
					), instance.InstanceRemovedEventMapper),
			},
			reduce: reduceInstanceRemovedHelper(UserGrantInstanceID),
			want: wantReduce{
				aggregateType: eventstore.AggregateType("instance"),
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (instance_id = $1)",
							expectedArgs: []interface{}{
								"agg-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceCascadeRemoved",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantCascadeRemovedType,
						usergrant.AggregateType,
						nil,
					), usergrant.UserGrantCascadeRemovedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceRemoved,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (id = $1) AND (instance_id = $2)",
							expectedArgs: []interface{}{
								anyArg{},
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceDeactivated",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantDeactivatedType,
						usergrant.AggregateType,
						nil,
					), usergrant.UserGrantDeactivatedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceDeactivated,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "UPDATE projections.user_grants4 SET (change_date, state, sequence) = ($1, $2, $3) WHERE (id = $4) AND (instance_id = $5)",
							expectedArgs: []interface{}{
								anyArg{},
								domain.UserGrantStateInactive,
								uint64(15),
								"agg-id",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceReactivated",
			args: args{
				event: getEvent(
					testEvent(
						usergrant.UserGrantReactivatedType,
						usergrant.AggregateType,
						nil,
					), usergrant.UserGrantReactivatedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceReactivated,
			want: wantReduce{
				aggregateType: usergrant.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "UPDATE projections.user_grants4 SET (change_date, state, sequence) = ($1, $2, $3) WHERE (id = $4) AND (instance_id = $5)",
							expectedArgs: []interface{}{
								anyArg{},
								domain.UserGrantStateActive,
								uint64(15),
								"agg-id",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceUserRemoved",
			args: args{
				event: getEvent(
					testEvent(
						user.UserRemovedType,
						user.AggregateType,
						nil,
					), user.UserRemovedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceUserRemoved,
			want: wantReduce{
				aggregateType: user.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (user_id = $1) AND (instance_id = $2)",
							expectedArgs: []interface{}{
								anyArg{},
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceProjectRemoved",
			args: args{
				event: getEvent(
					testEvent(
						project.ProjectRemovedType,
						project.AggregateType,
						nil,
					), project.ProjectRemovedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceProjectRemoved,
			want: wantReduce{
				aggregateType: project.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (project_id = $1) AND (instance_id = $2)",
							expectedArgs: []interface{}{
								anyArg{},
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceProjectGrantRemoved",
			args: args{
				event: getEvent(
					testEvent(
						project.GrantRemovedType,
						project.AggregateType,
						[]byte(`{"grantId": "grantID"}`),
					), project.GrantRemovedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceProjectGrantRemoved,
			want: wantReduce{
				aggregateType: project.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (grant_id = $1) AND (instance_id = $2)",
							expectedArgs: []interface{}{
								"grantID",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceRoleRemoved",
			args: args{
				event: getEvent(
					testEvent(
						project.RoleRemovedType,
						project.AggregateType,
						[]byte(`{"key": "key"}`),
					), project.RoleRemovedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceRoleRemoved,
			want: wantReduce{
				aggregateType: project.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "UPDATE projections.user_grants4 SET roles = array_remove(roles, $1) WHERE (project_id = $2) AND (instance_id = $3)",
							expectedArgs: []interface{}{
								"key",
								"agg-id",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name: "reduceProjectGrantChanged",
			args: args{
				event: getEvent(
					testEvent(
						project.GrantChangedType,
						project.AggregateType,
						[]byte(`{"grantId": "grantID", "roleKeys": ["key"]}`),
					), project.GrantChangedEventMapper),
			},
			reduce: (&userGrantProjection{}).reduceProjectGrantChanged,
			want: wantReduce{
				aggregateType: project.AggregateType,
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "UPDATE projections.user_grants4 SET (roles) = (SELECT ARRAY( SELECT UNNEST(roles) INTERSECT SELECT UNNEST ($1::TEXT[]))) WHERE (grant_id = $2) AND (instance_id = $3)",
							expectedArgs: []interface{}{
								database.TextArray[string]{"key"},
								"grantID",
								"instance-id",
							},
						},
					},
				},
			},
		},
		{
			name:   "org.reduceOwnerRemoved",
			reduce: (&userGrantProjection{}).reduceOwnerRemoved,
			args: args{
				event: getEvent(
					testEvent(
						org.OrgRemovedEventType,
						org.AggregateType,
						nil,
					), org.OrgRemovedEventMapper),
			},
			want: wantReduce{
				aggregateType: eventstore.AggregateType("org"),
				sequence:      15,
				executer: &testExecuter{
					executions: []execution{
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (instance_id = $1) AND (resource_owner = $2)",
							expectedArgs: []interface{}{
								"instance-id",
								"agg-id",
							},
						},
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (instance_id = $1) AND (resource_owner_user = $2)",
							expectedArgs: []interface{}{
								"instance-id",
								"agg-id",
							},
						},
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (instance_id = $1) AND (resource_owner_project = $2)",
							expectedArgs: []interface{}{
								"instance-id",
								"agg-id",
							},
						},
						{
							expectedStmt: "DELETE FROM projections.user_grants4 WHERE (instance_id = $1) AND (granted_org = $2)",
							expectedArgs: []interface{}{
								"instance-id",
								"agg-id",
							},
						},
					},
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			event := baseEvent(t)
			got, err := tt.reduce(event)
			if ok := zerrors.IsErrorInvalidArgument(err); !ok {
				t.Errorf("no wrong event mapping: %v, got: %v", err, got)
			}

			event = tt.args.event(t)
			got, err = tt.reduce(event)
			assertReduce(t, got, err, UserGrantProjectionTable, tt.want)
		})
	}
}

func Test_getResourceOwners(t *testing.T) {
	type args struct {
		instanceID string
		userID     string
		projectID  string
		grantID    string
	}
	type fields struct {
		eventstore *eventstore.Eventstore
	}
	type want struct {
		userRO     string
		projectRO  string
		grantedOrg string
		wantErr    bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		want   want
	}{
		{
			name: "user RO, filter error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilterError(zerrors.ThrowNotFound(nil, "error", "error")),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
			},
			want: want{
				wantErr: true,
			},
		},
		{
			name: "user RO",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
			},
			want: want{
				userRO:  "org",
				wantErr: false,
			},
		},
		{
			name: "user RO, import",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org2").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org1").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
			},
			want: want{
				userRO:  "org1",
				wantErr: false,
			},
		},
		{
			name: "user RO, no user",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
			},
			want: want{
				wantErr: false,
			},
		},
		{
			name: "user and project RO",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
						eventFromEventPusher(
							project.NewProjectAddedEvent(context.Background(),
								&project.NewAggregate("project", "org").Aggregate,
								"project",
								false,
								false,
								false,
								domain.PrivateLabelingSettingUnspecified,
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
				projectID:  "project",
			},
			want: want{
				userRO:    "org",
				projectRO: "org",
				wantErr:   false,
			},
		},
		{
			name: "user and project RO, no project",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
				projectID:  "project",
			},
			want: want{
				userRO:  "org",
				wantErr: false,
			},
		},
		{
			name: "user and grant RO",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
						eventFromEventPusher(
							project.NewGrantAddedEvent(context.Background(),
								&project.NewAggregate("project", "org").Aggregate,
								"projectgrant1",
								"grantedorg1",
								[]string{"key1"},
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
				projectID:  "project",
				grantID:    "projectgrant1",
			},
			want: want{
				userRO:     "org",
				grantedOrg: "grantedorg1",
				wantErr:    false,
			},
		},
		{
			name: "user and grant RO, import",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org2").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
						eventFromEventPusher(
							project.NewGrantAddedEvent(context.Background(),
								&project.NewAggregate("project", "org").Aggregate,
								"projectgrant1",
								"grantedorg1",
								[]string{"key1"},
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
				projectID:  "project",
				grantID:    "projectgrant1",
			},
			want: want{
				userRO:     "org",
				grantedOrg: "grantedorg1",
				wantErr:    false,
			},
		},
		{
			name: "user and grant RO, no grant",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user", "org").Aggregate,
								"username1",
								"firstname1",
								"lastname1",
								"nickname1",
								"displayname1",
								language.German,
								domain.GenderMale,
								"email1",
								true,
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
				projectID:  "project",
				grantID:    "projectgrant1",
			},
			want: want{
				userRO:  "org",
				wantErr: false,
			},
		},
		{
			name: "user and grant RO, no user",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewGrantAddedEvent(context.Background(),
								&project.NewAggregate("project", "org").Aggregate,
								"projectgrant1",
								"grantedorg1",
								[]string{"key1"},
							),
						),
					),
				),
			},
			args: args{
				instanceID: "instance",
				userID:     "user",
				projectID:  "project",
				grantID:    "projectgrant1",
			},
			want: want{
				grantedOrg: "grantedorg1",
				wantErr:    false,
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {

			userRO, projectRO, grantedOrg, err := getResourceOwners(context.Background(), tt.fields.eventstore, tt.args.instanceID, tt.args.userID, tt.args.projectID, tt.args.grantID)
			if tt.want.wantErr {
				require.Error(t, err)
			} else {
				require.NoError(t, err)
				require.Equal(t, tt.want.userRO, userRO)
				require.Equal(t, tt.want.projectRO, projectRO)
				require.Equal(t, tt.want.grantedOrg, grantedOrg)
			}
		})
	}
}