package storage

import (
	"goalfymax-admin/internal/models"
	"gorm.io/gorm"
)

type GoalfyMaxUserStorage interface {
	Create(user *models.GoalfyMaxUser) error
	GetByID(id uint) (*models.GoalfyMaxUser, error)
	GetByUserID(userID int) (*models.GoalfyMaxUser, error)
	GetByUsername(username string) (*models.GoalfyMaxUser, error)
	GetByEmail(email string) (*models.GoalfyMaxUser, error)
	Update(user *models.GoalfyMaxUser) error
	Delete(id uint) error
	List(req *models.GoalfyMaxUserListRequest) ([]models.GoalfyMaxUser, int64, error)
	SetBanned(id uint, reason string, adminID int) error
	Unban(id uint) error
}

type goalfyMaxUserStorage struct {
	db *gorm.DB
}

func NewGoalfyMaxUserStorage() GoalfyMaxUserStorage {
	return &goalfyMaxUserStorage{db: DB}
}

func (s *goalfyMaxUserStorage) Create(user *models.GoalfyMaxUser) error {
	return s.db.Create(user).Error
}

func (s *goalfyMaxUserStorage) GetByID(id uint) (*models.GoalfyMaxUser, error) {
	var user models.GoalfyMaxUser
	if err := s.db.First(&user, id).Error; err != nil {
		return nil, err
	}
	return &user, nil
}

func (s *goalfyMaxUserStorage) GetByUserID(userID int) (*models.GoalfyMaxUser, error) {
	var user models.GoalfyMaxUser
	if err := s.db.Where("user_id = ?", userID).First(&user).Error; err != nil {
		return nil, err
	}
	return &user, nil
}

func (s *goalfyMaxUserStorage) GetByUsername(username string) (*models.GoalfyMaxUser, error) {
	var user models.GoalfyMaxUser
	if err := s.db.Where("username = ?", username).First(&user).Error; err != nil {
		return nil, err
	}
	return &user, nil
}

func (s *goalfyMaxUserStorage) GetByEmail(email string) (*models.GoalfyMaxUser, error) {
	var user models.GoalfyMaxUser
	if err := s.db.Where("email = ?", email).First(&user).Error; err != nil {
		return nil, err
	}
	return &user, nil
}

func (s *goalfyMaxUserStorage) Update(user *models.GoalfyMaxUser) error {
	return s.db.Save(user).Error
}

func (s *goalfyMaxUserStorage) Delete(id uint) error {
	return s.db.Delete(&models.GoalfyMaxUser{}, id).Error
}

func (s *goalfyMaxUserStorage) List(req *models.GoalfyMaxUserListRequest) ([]models.GoalfyMaxUser, int64, error) {
	var users []models.GoalfyMaxUser
	var total int64

	q := s.db.Model(&models.GoalfyMaxUser{})
	if req.Username != "" {
		q = q.Where("username LIKE ?", "%"+req.Username+"%")
	}
	if req.Email != "" {
		q = q.Where("email LIKE ?", "%"+req.Email+"%")
	}
	if req.Status != nil {
		if *req.Status == 0 {
			q = q.Where("is_banned = ?", true)
		} else if *req.Status == 1 {
			q = q.Where("is_banned = ?", false)
		}
	}

	if err := q.Count(&total).Error; err != nil {
		return nil, 0, err
	}

	offset := (req.Page - 1) * req.Size
	if err := q.Offset(offset).Limit(req.Size).Order("id DESC").Find(&users).Error; err != nil {
		return nil, 0, err
	}
	return users, total, nil
}

func (s *goalfyMaxUserStorage) SetBanned(id uint, reason string, adminID int) error {
	return s.db.Model(&models.GoalfyMaxUser{}).
		Where("id = ?", id).
		Updates(map[string]interface{}{
			"is_banned":  true,
			"ban_reason": reason,
			"banned_by":  adminID,
			"banned_at":  gorm.Expr("NOW()"),
		}).Error
}

func (s *goalfyMaxUserStorage) Unban(id uint) error {
	return s.db.Model(&models.GoalfyMaxUser{}).
		Where("id = ?", id).
		Updates(map[string]interface{}{
			"is_banned":  false,
			"ban_reason": "",
			"banned_by":  0,
			"banned_at":  nil,
		}).Error
}