s3.go

package s3

import (
	"bytes"
	"encoding/binary"
	"fmt"
	"net/url"
	"path"
	"strings"
	"time"

	"github.com/aws/aws-sdk-go/aws/awserr"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/errors"

	"github.com/aws/aws-sdk-go/aws/session"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/service/s3"
	"github.com/google/uuid"
)

// S3UploadResponse defines the structure of a standard JSON response to a PDF/CSV/etc request.
type S3UploadResponse struct {
	URL      string `json:"url"`
	Filename string `json:"filename"`
	Bucket   string `json:"bucket"`
	FileSize int    `json:"file_size"`
}

type S3UploadSettings struct {
	MimeType              MIMEType
	RetrieveSignedUrl     bool
	ExpiryDuration        *time.Duration // Used to set expiry datetime of download links. NB: does not affect deletion of object from S3 bucket.
	AddContentDisposition bool
	FilePath              string
	FileName              string
	FileExt               string
	InsertUUID            bool
}

// Duration constants
const (
	S3ExpiryDuration1Day  time.Duration = 24 * time.Hour
	S3ExpiryDuration7Days time.Duration = 7 * 24 * time.Hour
)

type MIMEType string

const (
	// MIMETypePDF defines the constant for the PDF MIME type.
	MIMETypePDF MIMEType = "application/pdf"

	// MIMETypeCSV defines the constant for the CSV MIME type.
	MIMETypeCSV MIMEType = "text/csv"

	// MIMETypeZIP defines the constant for the ZIP MIME type.
	MIMETypeZIP MIMEType = "application/zip"

	// MIMETypeJSON defines the constant for the JSON MIME type.
	MIMETypeJSON MIMEType = "application/json"

	// MIMETypeText defines the constant for the Plain text MIME type.
	MIMETypeText MIMEType = "text/plain"

	// MIMETypeImage defines the constant for the Image MIME type.
	MIMETypeImage MIMEType = "image/*"

	// MIMETypePNG defines the constant for the PNG MIME type.
	MIMETypePNG MIMEType = "image/png"