package command

import (
	"context"
	"testing"
	"time"

	"github.com/golang/mock/gomock"
	"github.com/stretchr/testify/assert"
	"golang.org/x/text/language"

	"github.com/zitadel/zitadel/internal/crypto"
	"github.com/zitadel/zitadel/internal/domain"
	caos_errs "github.com/zitadel/zitadel/internal/errors"
	"github.com/zitadel/zitadel/internal/eventstore"
	"github.com/zitadel/zitadel/internal/eventstore/repository"
	"github.com/zitadel/zitadel/internal/repository/org"
	"github.com/zitadel/zitadel/internal/repository/user"
)

func TestCommandSide_ResendInitialMail(t *testing.T) {
	type fields struct {
		eventstore *eventstore.Eventstore
	}
	type args struct {
		ctx             context.Context
		userID          string
		email           string
		resourceOwner   string
		secretGenerator crypto.Generator
	}
	type res struct {
		want *domain.ObjectDetails
		err  func(error) bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		res    res
	}{
		{
			name: "userid missing, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "user not existing, precondition error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsNotFound,
			},
		},
		{
			name: "user not initialized, precondition error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanEmailVerifiedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate)),
					),
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsPreconditionFailed,
			},
		},
		{
			name: "new code email not changed, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanInitialCodeAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								nil, time.Hour*1,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanInitialCodeAddedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
									&crypto.CryptoValue{
										CryptoType: crypto.TypeEncryption,
										Algorithm:  "enc",
										KeyID:      "id",
										Crypted:    []byte("a"),
									},
									time.Hour*1,
								),
							),
						},
					),
				),
			},
			args: args{
				ctx:             context.Background(),
				userID:          "user1",
				resourceOwner:   "org1",
				email:           "email@test.ch",
				secretGenerator: GetMockSecretGenerator(t),
			},
			res: res{
				want: &domain.ObjectDetails{
					ResourceOwner: "org1",
				},
			},
		},
		{
			name: "new code, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanInitialCodeAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								nil, time.Hour*1,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanInitialCodeAddedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
									&crypto.CryptoValue{
										CryptoType: crypto.TypeEncryption,
										Algorithm:  "enc",
										KeyID:      "id",
										Crypted:    []byte("a"),
									},
									time.Hour*1,
								),
							),
						},
					),
				),
			},
			args: args{
				ctx:             context.Background(),
				userID:          "user1",
				resourceOwner:   "org1",
				secretGenerator: GetMockSecretGenerator(t),
			},
			res: res{
				want: &domain.ObjectDetails{
					ResourceOwner: "org1",
				},
			},
		},
		{
			name: "new code with change email, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanInitialCodeAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								nil, time.Hour*1,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanEmailChangedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
									"email2@test.ch")),
							eventFromEventPusher(
								user.NewHumanInitialCodeAddedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
									&crypto.CryptoValue{
										CryptoType: crypto.TypeEncryption,
										Algorithm:  "enc",
										KeyID:      "id",
										Crypted:    []byte("a"),
									},
									time.Hour*1,
								),
							),
						},
					),
				),
			},
			args: args{
				ctx:             context.Background(),
				userID:          "user1",
				resourceOwner:   "org1",
				email:           "email2@test.ch",
				secretGenerator: GetMockSecretGenerator(t),
			},
			res: res{
				want: &domain.ObjectDetails{
					ResourceOwner: "org1",
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			r := &Commands{
				eventstore: tt.fields.eventstore,
			}
			got, err := r.ResendInitialMail(tt.args.ctx, tt.args.userID, tt.args.email, tt.args.resourceOwner, tt.args.secretGenerator)
			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_VerifyInitCode(t *testing.T) {
	type fields struct {
		eventstore      *eventstore.Eventstore
		userPasswordAlg crypto.HashAlgorithm
	}
	type args struct {
		ctx             context.Context
		userID          string
		code            string
		resourceOwner   string
		password        string
		secretGenerator crypto.Generator
	}
	type res struct {
		want *domain.ObjectDetails
		err  func(error) bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		res    res
	}{
		{
			name: "userid missing, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				code:          "aa",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "code missing, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "user not existing, precondition error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				code:          "aa",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsNotFound,
			},
		},
		{
			name: "code not existing, precondition error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
					),
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				code:          "aa",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsNotFound,
			},
		},
		{
			name: "invalid code, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanInitialCodeAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								&crypto.CryptoValue{
									CryptoType: crypto.TypeEncryption,
									Algorithm:  "enc",
									KeyID:      "id",
									Crypted:    []byte("a"),
								},
								time.Hour*1,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanInitializedCheckFailedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
								),
							),
						},
					),
				),
			},
			args: args{
				ctx:             context.Background(),
				userID:          "user1",
				code:            "test",
				resourceOwner:   "org1",
				secretGenerator: GetMockSecretGenerator(t),
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "valid code, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusherWithCreationDateNow(
							user.NewHumanInitialCodeAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								&crypto.CryptoValue{
									CryptoType: crypto.TypeEncryption,
									Algorithm:  "enc",
									KeyID:      "id",
									Crypted:    []byte("a"),
								},
								time.Hour*1,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanInitializedCheckSucceededEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
								),
							),
							eventFromEventPusher(
								user.NewHumanEmailVerifiedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
								),
							),
						},
					),
				),
			},
			args: args{
				ctx:             context.Background(),
				userID:          "user1",
				code:            "a",
				resourceOwner:   "org1",
				secretGenerator: GetMockSecretGenerator(t),
			},
			res: res{
				want: &domain.ObjectDetails{
					ResourceOwner: "org1",
				},
			},
		},
		{
			name: "valid code with password, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
						eventFromEventPusher(
							user.NewHumanEmailVerifiedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate)),
						eventFromEventPusherWithCreationDateNow(
							user.NewHumanInitialCodeAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								&crypto.CryptoValue{
									CryptoType: crypto.TypeEncryption,
									Algorithm:  "enc",
									KeyID:      "id",
									Crypted:    []byte("a"),
								},
								time.Hour*1,
							),
						),
					),
					expectFilter(
						eventFromEventPusher(
							org.NewPasswordComplexityPolicyAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								1,
								false,
								false,
								false,
								false,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanInitializedCheckSucceededEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
								),
							),
							eventFromEventPusher(
								user.NewHumanPasswordChangedEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
									&crypto.CryptoValue{
										CryptoType: crypto.TypeHash,
										Algorithm:  "hash",
										KeyID:      "",
										Crypted:    []byte("password"),
									},
									false,
									"")),
						},
					),
				),
				userPasswordAlg: crypto.CreateMockHashAlg(gomock.NewController(t)),
			},
			args: args{
				ctx:             context.Background(),
				userID:          "user1",
				code:            "a",
				resourceOwner:   "org1",
				password:        "password",
				secretGenerator: GetMockSecretGenerator(t),
			},
			res: res{
				want: &domain.ObjectDetails{
					ResourceOwner: "org1",
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			r := &Commands{
				eventstore:      tt.fields.eventstore,
				userPasswordAlg: tt.fields.userPasswordAlg,
			}
			err := r.HumanVerifyInitCode(tt.args.ctx, tt.args.userID, tt.args.resourceOwner, tt.args.code, tt.args.password, tt.args.secretGenerator)
			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)
			}
		})
	}
}

func TestCommandSide_InitCodeSent(t *testing.T) {
	type fields struct {
		eventstore *eventstore.Eventstore
	}
	type args struct {
		ctx           context.Context
		userID        string
		resourceOwner string
	}
	type res struct {
		err func(error) bool
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		res    res
	}{
		{
			name: "userid missing, invalid argument error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
				),
			},
			args: args{
				ctx:           context.Background(),
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsErrorInvalidArgument,
			},
		},
		{
			name: "user not existing, precondition error",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(),
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				resourceOwner: "org1",
			},
			res: res{
				err: caos_errs.IsNotFound,
			},
		},
		{
			name: "code sent, ok",
			fields: fields{
				eventstore: eventstoreExpect(
					t,
					expectFilter(
						eventFromEventPusher(
							user.NewHumanAddedEvent(context.Background(),
								&user.NewAggregate("user1", "org1").Aggregate,
								"username",
								"firstname",
								"lastname",
								"nickname",
								"displayname",
								language.German,
								domain.GenderUnspecified,
								"email@test.ch",
								true,
							),
						),
					),
					expectPush(
						[]*repository.Event{
							eventFromEventPusher(
								user.NewHumanInitialCodeSentEvent(context.Background(),
									&user.NewAggregate("user1", "org1").Aggregate,
								),
							),
						},
					),
				),
			},
			args: args{
				ctx:           context.Background(),
				userID:        "user1",
				resourceOwner: "org1",
			},
			res: res{},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			r := &Commands{
				eventstore: tt.fields.eventstore,
			}
			err := r.HumanInitCodeSent(tt.args.ctx, tt.args.resourceOwner, tt.args.userID)
			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)
			}
		})
	}
}