package cmd

import (
	ht "html/template"
	"log"
	"os"

	"github.com/spf13/cobra"
	"github.com/vanng822/go-premailer/premailer"
	"github.com/wneessen/go-mail"
)

var help bool
var inline bool
var template string
var output string

// sendmailCmd represents the sendmail command
var sendmailCmd = &cobra.Command{
	Use:   "sendmail",
	Short: "Send mail with the configured server",
	Long: `Send Emails for testing Mail templates:

sendmail.`,
	Run: func(cmd *cobra.Command, args []string) {

		prem, err := premailer.NewPremailerFromFile(template, premailer.NewOptions())
		if err != nil {
			log.Fatal(err)
		}

		html, err := prem.Transform()
		if err != nil {
			log.Fatal(err)
		}

		f, err := os.Create(template + "_inlined.html")
		defer f.Close()
		f.WriteString(html)
		f.Sync()

		// fmt.Println(html)

		m := mail.NewMsg()
		if err := m.From("sender@domain.local"); err != nil {
			log.Fatalf("failed to set From address: %s", err)
		}
		if err := m.To("recipient@domain.local"); err != nil {
			log.Fatalf("failed to set To address: %s", err)
		}
		m.Subject("Subject")

		htpl, err := ht.New("htmltpl").Parse(html)
		if err != nil {
			log.Fatalf("failed to parse text template: %s", err)
		}

		// embedd images
		for _, val := range findSrcInHtml(html) {
			log.Println("embedding: " + val)
			m.EmbedFile(val)
		}

		m.SetBodyHTMLTemplate(htpl, nil)

		c, err := mail.NewClient("localhost", mail.WithPort(25), mail.WithTLSPolicy(mail.NoTLS))
		if err != nil {
			log.Fatalf("failed to create mail client: %s", err)
		}
		if err := c.DialAndSend(m); err != nil {
			log.Fatalf("failed to send mail: %s", err)
		}

	},
}



func init() {
	rootCmd.AddCommand(sendmailCmd)

	// Here you will define your flags and configuration settings.

	// Cobra supports Persistent Flags which will work for this command
	// and all subcommands, e.g.:
	// sendmailCmd.PersistentFlags().String("foo", "", "A help for foo")

	// Cobra supports local flags which will only run when this command
	// is called directly, e.g.:
	sendmailCmd.Flags().BoolVar(&help, "test", false, "Help message for sendmail")
	sendmailCmd.Flags().BoolVarP(&inline, "inline", "i", false, "Inline css")
	sendmailCmd.Flags().StringVarP(&template, "template", "t", "", "Path to html template")
	sendmailCmd.Flags().StringVarP(&output, "output", "o", "", "Path to save inlined html")
}