package models

import (
	"log"
	"main/configs"
)

type Image struct {
	ID        int    `json:"id"`
	Name      string `json:"name"`
	CreatedAt string `json:"created_at"`
	UpdatedAt string `json:"updated_at"`
}

func (image *Image) Create() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	stmt, err := db.Prepare("INSERT INTO images(name, created_at, updated_at) values(?, ?, ?)")
	if err != nil {
		log.Println(err)
		return err
	}
	defer stmt.Close()
	result, err := stmt.Exec(image.Name, image.CreatedAt, image.UpdatedAt)
	if err != nil {
		log.Println(err)
		return err
	}
	id, err := result.LastInsertId()
	if err != nil {
		return err
	}
	image.ID = int(id)
	return nil
}

func (image *Image) Delete() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	stmt, err := db.Prepare("DELETE FROM images WHERE id = ?")
	if err != nil {
		log.Println(err)
		return err
	}
	defer stmt.Close()
	_, err = stmt.Exec(image.ID)
	if err != nil {
		log.Println(err)
		return err
	}
	return nil
}

func (image *Image) Update() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	stmt, err := db.Prepare("UPDATE images SET name = ?, updated_at = ? WHERE id = ?")
	if err != nil {
		log.Println(err)
		return err
	}
	defer stmt.Close()
	_, err = stmt.Exec(image.Name, image.UpdatedAt, image.ID)
	if err != nil {
		log.Println(err)
		return err
	}
	return nil
}

func (image *Image) Get() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	err = db.QueryRow("SELECT id, name, created_at, updated_at FROM images WHERE id = ?", image.ID).Scan(&image.ID, &image.Name, &image.CreatedAt, &image.UpdatedAt)
	if err != nil {
		log.Println(err)
		return err
	}
	return nil
}

func QueryImages(page int, pagesize int) (images []interface{}) {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return
	}
	defer db.Close()
	rows, err := db.Query("SELECT id, name, created_at, updated_at FROM images LIMIT ?, ?", (page-1)*pagesize, pagesize)
	if err != nil {
		log.Println(err)
		return
	}
	defer rows.Close()
	for rows.Next() {
		image := Image{}
		err := rows.Scan(&image.ID, &image.Name, &image.CreatedAt, &image.UpdatedAt)
		if err != nil {
			log.Println(err)
			return
		}
		images = append(images, image)
	}
	return
}

func CountImages() (count int) {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return
	}
	defer db.Close()
	err = db.QueryRow("SELECT COUNT(*) FROM images").Scan(&count)
	if err != nil {
		log.Println(err)
		return
	}
	return
}