package models

import (
	"log"
	"main/configs"
)

type Server struct {
	ID        int    `json:"id"`
	Name      string `json:"name"`
	IP        string `json:"ip"`
	Port      int    `json:"port"`
	Username  string `json:"username"`
	Password  string `json:"password"`
	CreatedAt string `json:"created_at"`
	UpdatedAt string `json:"updated_at"`
}

func (server *Server) Create() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	stmt, err := db.Prepare("INSERT INTO servers(name, ip, port, username, password, created_at, updated_at) values(?, ?, ?, ?, ?, ?, ?)")
	if err != nil {
		log.Println(err)
		return err
	}
	defer stmt.Close()
	result, err := stmt.Exec(server.Name, server.IP, server.Port, server.Username, server.Password, server.CreatedAt, server.UpdatedAt)
	if err != nil {
		log.Println(err)
		return err
	}
	id, err := result.LastInsertId()
	if err != nil {
		return err
	}
	server.ID = int(id)
	return nil
}

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

func (server *Server) Update() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	stmt, err := db.Prepare("UPDATE servers SET name = ?, ip = ?, port = ?, username = ?, password = ?, updated_at = ? WHERE id = ?")
	if err != nil {
		log.Println(err)
		return err
	}
	defer stmt.Close()
	_, err = stmt.Exec(server.Name, server.IP, server.Port, server.Username, server.Password, server.UpdatedAt, server.ID)
	if err != nil {
		log.Println(err)
		return err
	}
	return nil
}

func (server *Server) Get() error {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return err
	}
	defer db.Close()
	err = db.QueryRow("SELECT id, name, ip, port, username, password, created_at, updated_at FROM servers WHERE id = ?", server.ID).Scan(&server.ID, &server.Name, &server.IP, &server.Port, &server.Username, &server.Password, &server.CreatedAt, &server.UpdatedAt)
	if err != nil {
		log.Println(err)
		return err
	}
	return nil
}

func QueryServers(page int, pagesize int) (servers []interface{}) {
	db, err := configs.GetDB()
	if err != nil {
		log.Println(err)
		return
	}
	defer db.Close()
	rows, err := db.Query("SELECT id, name, ip, port, username, password, created_at, updated_at FROM servers ORDER BY id DESC LIMIT ?, ?", page*pagesize, pagesize)
	if err != nil {
		log.Println(err)
		return
	}
	defer rows.Close()
	for rows.Next() {
		server := Server{}
		err := rows.Scan(&server.ID, &server.Name, &server.IP, &server.Port, &server.Username, &server.Password, &server.CreatedAt, &server.UpdatedAt)
		if err != nil {
			log.Println(err)
			continue
		}
		servers = append(servers, server)
	}
	return
}

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