ses.go

package ses

import (
	"bytes"
	"context"
	"fmt"
	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/config"
	"github.com/aws/aws-sdk-go-v2/service/ses"
	sesTypes "github.com/aws/aws-sdk-go-v2/service/ses/types"
	"github.com/prozz/aws-embedded-metrics-golang/emf"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/errors"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/logs"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/s3"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/utils"
	"gopkg.in/gomail.v2"
	"io"
	"strings"
)

const (
	InvalidParameterValueErrorString = "InvalidParameterValue"
)

var (
	clients = map[string]*ClientWithHelpers{}

	ErrorSESClientNotEstablished = errors.Error("could not establish an SES client")
)

type ClientWithHelpers struct {
	SESClient *ses.Client
}

type Email struct {
	Recipient           string                 `json:"recipient"`
	FromName            string                 `json:"from_name"`
	FromEmail           string                 `json:"from_email"`
	Subject             string                 `json:"subject"`
	EmailCcName         string                 `json:"email_cc_name"`
	EmailCcAddress      string                 `json:"email_cc_address"`
	ReplyToEmailAddress string                 `json:"reply_to_email_address"`
	Body                EmailBody              `json:"body"`
	Attachments         *[]s3.S3UploadResponse `json:"attachments"`
}

type EmailBody struct {
	HTMLBody string `json:"html_body"`
	TextBody string `json:"text_body"`
}

func GetClient(region ...string) *ClientWithHelpers {
	sesRegion := "eu-west-1"

	// Set custom region
	if region != nil && len(region) > 0 {
		sesRegion = region[0]
	}

	// Check if client exists for region, if it does return it
	if sesClient, ok := clients[sesRegion]; ok && sesClient != nil {
		return sesClient
	}

	cfg, err := config.LoadDefaultConfig(context.TODO(),
		config.WithRegion(sesRegion),
	)
	if err != nil {
		return &ClientWithHelpers{}
	}