package command

import (
	"context"
	"github.com/caos/zitadel/internal/crypto"
	"github.com/caos/zitadel/internal/domain"
	caos_errs "github.com/caos/zitadel/internal/errors"
	"github.com/caos/zitadel/internal/eventstore"
	"github.com/caos/zitadel/internal/eventstore/repository"
	"github.com/caos/zitadel/internal/eventstore/v1/models"
	"github.com/caos/zitadel/internal/id"
	id_mock "github.com/caos/zitadel/internal/id/mock"
	"github.com/caos/zitadel/internal/repository/project"
	"github.com/stretchr/testify/assert"
	"testing"
)

func TestCommandSide_AddAPIApplication(t *testing.T) {
	type fields struct {
		eventstore      *eventstore.Eventstore
		idGenerator     id.Generator
		secretGenerator crypto.Generator
	}
	type args struct {
		ctx           context.Context
		apiApp        *domain.APIApp
		resourceOwner string
	}
	type res struct {
		want *domain.APIApp
		err  func(error) bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		res    res
	}{
		{
			name: "no aggregate id, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				apiApp:        &domain.APIApp{},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "project not existing, not found error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppID:   "app1",
					AppName: "app",
				},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsPreconditionFailed,
			},
		},
		{
			name: "invalid app, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewProjectAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"project", true, true, true,
								domain.PrivateLabelingSettingUnspecified),
						),
					),
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppID:   "app1",
					AppName: "",
				},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "create api app basic, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewProjectAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"project", true, true, true,
								domain.PrivateLabelingSettingUnspecified),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								project.NewApplicationAddedEvent(context.Background(),
									&project.NewAggregate("project1", "org1").Aggregate,
									"app1",
									"app",
								),
							),
							eventFromEventPusher(
								project.NewAPIConfigAddedEvent(context.Background(),
									&project.NewAggregate("project1", "org1").Aggregate,
									"app1",
									"client1@project",
									&crypto.CryptoValue{
										CryptoType: crypto.TypeEncryption,
										Algorithm:  "enc",
										KeyID:      "id",
										Crypted:    []byte("a"),
									},
									domain.APIAuthMethodTypeBasic),
							),
						},
						uniqueConstraintsFromEventConstraint(project.NewAddApplicationUniqueConstraint("app", "project1")),
					),
				),
				idGenerator:     id_mock.NewIDGeneratorExpectIDs(t, "app1", "client1"),
				secretGenerator: GetMockSecretGenerator(t),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppName:        "app",
					AuthMethodType: domain.APIAuthMethodTypeBasic,
				},
				resourceOwner: "org1",
			},
			res: res{
				want: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID:   "project1",
						ResourceOwner: "org1",
					},
					AppID:              "app1",
					AppName:            "app",
					ClientID:           "client1@project",
					ClientSecretString: "a",
					AuthMethodType:     domain.APIAuthMethodTypeBasic,
					State:              domain.AppStateActive,
				},
			},
		},
		{
			name: "create api app jwt, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewProjectAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"project", true, true, true,
								domain.PrivateLabelingSettingUnspecified),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								project.NewApplicationAddedEvent(context.Background(),
									&project.NewAggregate("project1", "org1").Aggregate,
									"app1",
									"app",
								),
							),
							eventFromEventPusher(
								project.NewAPIConfigAddedEvent(context.Background(),
									&project.NewAggregate("project1", "org1").Aggregate,
									"app1",
									"client1@project",
									nil,
									domain.APIAuthMethodTypePrivateKeyJWT),
							),
						},
						uniqueConstraintsFromEventConstraint(project.NewAddApplicationUniqueConstraint("app", "project1")),
					),
				),
				idGenerator: id_mock.NewIDGeneratorExpectIDs(t, "app1", "client1"),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppName:        "app",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
				},
				resourceOwner: "org1",
			},
			res: res{
				want: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID:   "project1",
						ResourceOwner: "org1",
					},
					AppID:          "app1",
					AppName:        "app",
					ClientID:       "client1@project",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
					State:          domain.AppStateActive,
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			r := &Commands{
				eventstore:                 tt.fields.eventstore,
				idGenerator:                tt.fields.idGenerator,
				applicationSecretGenerator: tt.fields.secretGenerator,
			}
			got, err := r.AddAPIApplication(tt.args.ctx, tt.args.apiApp, tt.args.resourceOwner)
			if tt.res.err == nil {
				assert.NoError(t, err)
			}
			if tt.res.err != nil && !tt.res.err(err) {
				t.Errorf("got wrong err: %v ", err)
			}
			if tt.res.err == nil {
				assert.Equal(t, tt.res.want, got)
			}
		})
	}
}

func TestCommandSide_ChangeAPIApplication(t *testing.T) {
	type fields struct {
		eventstore *eventstore.Eventstore
	}
	type args struct {
		ctx           context.Context
		apiApp        *domain.APIApp
		resourceOwner string
	}
	type res struct {
		want *domain.APIApp
		err  func(error) bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		res    res
	}{
		{
			name: "missing appid, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppID:          "",
					AppName:        "app",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
				},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "missing aggregateid, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "",
					},
					AppID:          "appid",
					AppName:        "app",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
				},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "app not existing, not found error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppID:   "app1",
					AppName: "app",
				},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsNotFound,
			},
		},
		{
			name: "no changes, precondition error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewApplicationAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"app1",
								"app",
							),
						),
						eventFromEventPusher(
							project.NewAPIConfigAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"app1",
								"client1@project",
								nil,
								domain.APIAuthMethodTypePrivateKeyJWT),
						),
					),
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppID:          "app1",
					AppName:        "app",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
				},
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsPreconditionFailed,
			},
		},
		{
			name: "change api app, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewApplicationAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"app1",
								"app",
							),
						),
						eventFromEventPusher(
							project.NewAPIConfigAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"app1",
								"client1@project",
								&crypto.CryptoValue{
									CryptoType: crypto.TypeEncryption,
									Algorithm:  "enc",
									KeyID:      "id",
									Crypted:    []byte("a"),
								},
								domain.APIAuthMethodTypeBasic),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								newAPIAppChangedEvent(context.Background(),
									"app1",
									"project1",
									"org1",
									domain.APIAuthMethodTypePrivateKeyJWT),
							),
						},
					),
				),
			},
			args: args{
				ctx: context.Background(),
				apiApp: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID: "project1",
					},
					AppID:          "app1",
					AppName:        "app",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
				},
				resourceOwner: "org1",
			},
			res: res{
				want: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID:   "project1",
						ResourceOwner: "org1",
					},
					AppID:          "app1",
					AppName:        "app",
					ClientID:       "client1@project",
					AuthMethodType: domain.APIAuthMethodTypePrivateKeyJWT,
					State:          domain.AppStateActive,
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			r := &Commands{
				eventstore: tt.fields.eventstore,
			}
			got, err := r.ChangeAPIApplication(tt.args.ctx, tt.args.apiApp, tt.args.resourceOwner)
			if tt.res.err == nil {
				assert.NoError(t, err)
			}
			if tt.res.err != nil && !tt.res.err(err) {
				t.Errorf("got wrong err: %v ", err)
			}
			if tt.res.err == nil {
				assert.Equal(t, tt.res.want, got)
			}
		})
	}
}

func TestCommandSide_ChangeAPIApplicationSecret(t *testing.T) {
	type fields struct {
		eventstore      *eventstore.Eventstore
		secretGenerator crypto.Generator
	}
	type args struct {
		ctx           context.Context
		appID         string
		projectID     string
		resourceOwner string
	}
	type res struct {
		want *domain.APIApp
		err  func(error) bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		res    res
	}{
		{
			name: "no projectid, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				appID:         "app1",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "no appid, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				projectID:     "project1",
				appID:         "",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "app not existing, not found error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				ctx:           context.Background(),
				projectID:     "project1",
				appID:         "app1",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsNotFound,
			},
		},
		{
			name: "change secret, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							project.NewApplicationAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"app1",
								"app",
							),
						),
						eventFromEventPusher(
							project.NewAPIConfigAddedEvent(context.Background(),
								&project.NewAggregate("project1", "org1").Aggregate,
								"app1",
								"client1@project",
								&crypto.CryptoValue{
									CryptoType: crypto.TypeEncryption,
									Algorithm:  "enc",
									KeyID:      "id",
									Crypted:    []byte("a"),
								},
								domain.APIAuthMethodTypeBasic),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								project.NewAPIConfigSecretChangedEvent(context.Background(),
									&project.NewAggregate("project1", "org1").Aggregate,
									"app1",
									&crypto.CryptoValue{
										CryptoType: crypto.TypeEncryption,
										Algorithm:  "enc",
										KeyID:      "id",
										Crypted:    []byte("a"),
									}),
							),
						},
					),
				),
				secretGenerator: GetMockSecretGenerator(t),
			},
			args: args{
				ctx:           context.Background(),
				projectID:     "project1",
				appID:         "app1",
				resourceOwner: "org1",
			},
			res: res{
				want: &domain.APIApp{
					ObjectRoot: models.ObjectRoot{
						AggregateID:   "project1",
						ResourceOwner: "org1",
					},
					AppID:              "app1",
					AppName:            "app",
					ClientID:           "client1@project",
					ClientSecretString: "a",
					AuthMethodType:     domain.APIAuthMethodTypeBasic,
					State:              domain.AppStateActive,
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			r := &Commands{
				eventstore:                 tt.fields.eventstore,
				applicationSecretGenerator: tt.fields.secretGenerator,
			}
			got, err := r.ChangeAPIApplicationSecret(tt.args.ctx, tt.args.projectID, tt.args.appID, tt.args.resourceOwner)
			if tt.res.err == nil {
				assert.NoError(t, err)
			}
			if tt.res.err != nil && !tt.res.err(err) {
				t.Errorf("got wrong err: %v ", err)
			}
			if tt.res.err == nil {
				assert.Equal(t, tt.res.want, got)
			}
		})
	}
}

func newAPIAppChangedEvent(ctx context.Context, appID, projectID, resourceOwner string, authMethodType domain.APIAuthMethodType) *project.APIConfigChangedEvent {
	changes := []project.APIConfigChanges{
		project.ChangeAPIAuthMethodType(authMethodType),
	}
	event, _ := project.NewAPIConfigChangedEvent(ctx,
		&project.NewAggregate(projectID, resourceOwner).Aggregate,
		appID,
		changes,
	)
	return event
}