package biz

import (
	"context"
	"errors"
	"testing"
	"time"

	"golang.org/x/crypto/bcrypt"
)

type authenticationUserRepo struct {
	UserRepo
	user *User
}

func (r *authenticationUserRepo) FindUserByUsername(context.Context, string) (*User, error) {
	return r.user, nil
}

type authenticationSecurityRepo struct{ SecurityRepo }

func (*authenticationSecurityRepo) SecurityConfig(context.Context) (*SecurityConfig, error) {
	return &SecurityConfig{CaptchaOpen: 2, CaptchaTimeout: 60}, nil
}

type authenticationCache struct{ activeErr error }

func (c *authenticationCache) Get(_ context.Context, key string) (string, bool, error) {
	if key == "admin" {
		return "", false, c.activeErr
	}
	return "", false, nil
}
func (*authenticationCache) Set(context.Context, string, string, time.Duration) error { return nil }
func (*authenticationCache) Delete(context.Context, string) error                     { return nil }
func (*authenticationCache) Increment(context.Context, string, time.Duration) (int64, error) {
	return 1, nil
}

type authenticationSettings struct{ RuntimeSettings }

func (*authenticationSettings) UseMultipoint() bool { return true }

type authenticationIssuer struct{ TokenIssuer }

func (*authenticationIssuer) IssueToken(*User, uint, bool, time.Duration) (*IssuedToken, error) {
	return &IssuedToken{Value: "token", ExpiresAt: time.Now().Add(time.Hour), TTL: time.Hour}, nil
}

type authenticationAudit struct {
	AuditRecordRepo
	logins []*LoginLog
}

func (a *authenticationAudit) RecordLogin(_ context.Context, value *LoginLog) error {
	a.logins = append(a.logins, value)
	return nil
}

func TestLoginRecordsSuccessBeforeMultipointCacheFailure(t *testing.T) {
	hash, err := bcrypt.GenerateFromPassword([]byte("secret"), bcrypt.MinCost)
	if err != nil {
		t.Fatal(err)
	}
	users := NewUserUsecase(&authenticationUserRepo{user: &User{ID: 1, Username: "admin", Password: string(hash), AuthorityID: 888, Enable: 1}})
	cacheErr := errors.New("cache unavailable")
	security := NewSecurityUsecase(&authenticationSecurityRepo{}, &authenticationCache{activeErr: cacheErr}, &authenticationSettings{}, nil)
	audit := &authenticationAudit{}
	uc := NewAuthenticationUsecase(users, security, &authenticationIssuer{}, audit)

	_, err = uc.Login(context.Background(), &LoginAttempt{Username: "admin", Password: "secret", IP: "127.0.0.1", Agent: "test"})
	if !errors.Is(err, ErrLoginState) {
		t.Fatalf("expected login-state failure, got %v", err)
	}
	if len(audit.logins) != 1 || !audit.logins[0].Status || audit.logins[0].ErrorMessage != "登录成功" || audit.logins[0].UserID != 1 {
		t.Fatalf("expected successful login audit before cache failure, got %+v", audit.logins)
	}
}