package storage

import (
	"backend/internal/domain"
	"backend/internal/repository/storage/types"
	"context"

	"github.com/google/uuid"
	"gorm.io/gorm"
)

type UserRepository struct {
	db *gorm.DB
}

func NewUserRepository(db *gorm.DB) domain.UserRepo {
	return &UserRepository{
		db: db,
	}
}

func (r *UserRepository) Create(ctx context.Context, user *domain.User) error {
	model := types.CastUserToStorage(*user)
	if err := r.db.WithContext(ctx).Create(model).Error; err != nil {
		return err
	}
	*user = *types.CastUserToDomain(*model)
	return nil
}

func (r *UserRepository) GetByID(ctx context.Context, id uuid.UUID) (*domain.User, error) {
	var user types.User
	if err := r.db.WithContext(ctx).First(&user, "id = ?", id).Error; err != nil {
		return nil, err
	}
	return types.CastUserToDomain(user), nil
}

func (r *UserRepository) GetByPhone(ctx context.Context, phone string) (*domain.User, error) {
	var user types.User
	if err := r.db.WithContext(ctx).First(&user, "phone = ?", phone).Error; err != nil {
		return nil, err
	}
	return types.CastUserToDomain(user), nil
}

func (r *UserRepository) Update(ctx context.Context, user *domain.User) error {
	userModel := types.CastUserToStorage(*user)
	return r.db.WithContext(ctx).Save(&userModel).Error
}

func (r *UserRepository) Delete(ctx context.Context, id uuid.UUID) error {
	return r.db.WithContext(ctx).Delete(&types.User{}, "id = ?", id).Error
}

func (r *UserRepository) GetByPubKey(ctx context.Context, pubKey string) (*domain.User, error) {
	var user types.User
	if err := r.db.WithContext(ctx).First(&user, "pub_key = ?", pubKey).Error; err != nil {
		return nil, err
	}
	return types.CastUserToDomain(user), nil
}

func (r *UserRepository) GetOrCreateUserByPubKey(ctx context.Context, pubKey string) (*domain.User, error) {
	var user types.User
	err := r.db.WithContext(ctx).First(&user, "pub_key = ?", pubKey).Error
	if err == nil {
		return types.CastUserToDomain(user), nil
	}
	if err != gorm.ErrRecordNotFound {
		return nil, err
	}

	user = types.User{
		PubKey: pubKey,
	}
	if err := r.db.WithContext(ctx).Create(&user).Error; err != nil {
		return nil, err
	}
	return types.CastUserToDomain(user), nil
}