package system

import (
	"context"

	"management/internal/erpserver/model/dto"
	"management/internal/erpserver/model/system"
	"management/internal/erpserver/repository"
)

type userRepository struct {
	repo *repository.Repository
}

func NewUserRepository(repo *repository.Repository) system.UserRepository {
	return &userRepository{
		repo: repo,
	}
}

func (s *userRepository) Create(ctx context.Context, obj *system.User) error {
	return s.repo.DB(ctx).Create(obj).Error
}

func (s *userRepository) Update(ctx context.Context, obj *system.User) error {
	return s.repo.DB(ctx).Save(obj).Error
}

func (s *userRepository) Get(ctx context.Context, id int32) (*system.User, error) {
	var user system.User
	err := s.repo.DB(ctx).Where("id = ?", id).First(&user).Error
	if err != nil {
		return nil, err
	}
	return &user, nil
}

func (s *userRepository) GetByEmail(ctx context.Context, email string) (*system.User, error) {
	var user system.User
	err := s.repo.DB(ctx).Where("email = ?", email).First(&user).Error
	if err != nil {
		return nil, err
	}
	return &user, nil
}

func (s *userRepository) All(ctx context.Context) ([]*system.User, error) {
	var users []*system.User
	err := s.repo.DB(ctx).Find(&users).Error
	if err != nil {
		return nil, err
	}
	return users, nil
}

func (s *userRepository) List(ctx context.Context, q dto.SearchDto) ([]*system.User, int64, error) {
	query := s.repo.DB(ctx).
		Model(&system.User{}).
		Preload("Role").
		Preload("Department").
		Where("created_at BETWEEN ? AND ?", q.SearchTimeBegin, q.SearchTimeEnd)
	if q.SearchID != 0 {
		query = query.Where("id = ?", q.SearchID)
	}
	if q.SearchName != "" {
		query = query.Where("username LIKE ?", "%"+q.SearchName+"%")
	}
	if q.SearchEmail != "" {
		query = query.Where("email LIKE ?", "%"+q.SearchEmail+"%")
	}
	if q.SearchStatus != 9999 {
		query = query.Where("status = ?", q.SearchStatus)
	}

	var count int64
	err := query.Count(&count).Error
	if err != nil {
		return nil, 0, err
	}

	var users []*system.User
	err = query.
		Order("id DESC").
		Offset((q.Page - 1) * q.Rows).
		Limit(q.Rows).
		Find(&users).Error
	if err != nil {
		return nil, 0, err
	}
	return users, count, nil
}