package app

import (
	"bytes"
	"fmt"
	"log"
	"net/smtp"
	"os"
	"text/template"
)

const CONFIG_SMTP_HOST = "smtp.gmail.com"
const CONFIG_SMTP_PORT = 587
const CONFIG_SENDER_NAME = "HIS <hats.nutech@gmail.com>"
const CONFIG_AUTH_EMAIL = "hats.nutech@gmail.com"
const CONFIG_AUTH_PASSWORD = "lbfjfuywqktkexij"

func Mail() {
	// dialer := gomail.NewDialer(
	// 	CONFIG_SMTP_HOST,
	// 	CONFIG_SMTP_PORT,
	// 	CONFIG_AUTH_EMAIL,
	// 	CONFIG_AUTH_PASSWORD,
	// )

	// return dialer
}

func SendEmail(to []string, cc []string, subject, message string) error {
	tmpl, err := template.ParseFiles("template/test.html")
	if err != nil {
		log.Fatalf("Error parsing template: %v", err)
	}

	fmt.Println("qwqwqw", os.Getenv("PORT"))

	type Data struct {
		Name    string
		Company string
	}

	data := Data{Name: "Salwa Balqis Sulaeman", Company: "HIS"}

	var buf bytes.Buffer
	if err := tmpl.Execute(&buf, data); err != nil {
		log.Fatalf("Error executing template: %v", err)
	}

	// content, err := os.ReadFile("template/test.html")
	// if err != nil {
	// 	fmt.Println("Error reading file:", err)
	// 	return err
	// }

	htmlString := buf.String()

	sender := "From: " + CONFIG_SENDER_NAME + "\n"
	subjectt := "Subject: 👋 Hello from Go\n"
	mime := "MIME-version: 1.0;\nContent-Type: text/html; charset=\"UTF-8\";\n\n"
	body := htmlString
	messages := []byte(sender + subjectt + mime + body)

	auth := smtp.PlainAuth("", CONFIG_AUTH_EMAIL, CONFIG_AUTH_PASSWORD, CONFIG_SMTP_HOST)
	smtpAddr := fmt.Sprintf("%s:%d", CONFIG_SMTP_HOST, CONFIG_SMTP_PORT)

	err = smtp.SendMail(smtpAddr, auth, CONFIG_AUTH_EMAIL, append(to, cc...), messages)
	if err != nil {
		return err
	}

	return nil
}