package models

import (
	"github.com/shopspring/decimal"
	"gorm.io/gorm"
	"time"
)

type Product struct {
	ID            string `gorm:"size:36;not null;uniqueIndex;primary_key"`
	ParentID      string `gorm:"size:36;index"`
	Name          string `gorm:"size:255"`
	Slug          string `gorm:"size:255"`
	ProductImages []ProductImage
	Price         decimal.Decimal `gorm:"type:decimal(16,2);"`
	//Categories       []Category      `gorm:"many2many:product_categories;"`
	Category         Category
	CategoryID       string
	ShortDescription string `gorm:"type:text"`
	Description      string `gorm:"type:text"`

	CreatedAt time.Time
	UpdatedAt time.Time
	DeletedAt gorm.DeletedAt
}

func (p *Product) GetProducts(db *gorm.DB, perPage int, page int) (*[]Product, int64, error) {

	var count int64
	var products []Product

	err := db.Debug().Model(&Product{}).Count(&count).Error
	if err != nil {
		return nil, 0, err
	}

	offset := (page - 1) * perPage

	err = db.Debug().Model(&Product{}).Order("created_at desc").Limit(perPage).Offset(offset).Find(&products).Error
	if err != nil {
		return nil, 0, err
	}
	return &products, count, nil
}

func (p *Product) GetProductsByCategory(db *gorm.DB, categoryID string) (*[]Product, int64, error) {
	var count int64
	var products []Product

	err := db.Debug().Model(&Product{}).Order("created_at desc").Where("category_id = ?", categoryID).Find(&products).Count(&count).Error
	if err != nil {
		return nil, 0, err
	}

	return &products, count, nil

}

func (p *Product) FindByID(db *gorm.DB, productID string) (*Product, error) {
	var err error
	var product Product

	err = db.Debug().Preload("ProductImages").Model(&Product{}).Where("id = ?", productID).First(&product).Error
	//err = db.Debug().Model(&Product{}).Where("id = ?", productID).First(&product).Error
	if err != nil {
		return nil, err
	}

	return &product, nil
}