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package m3u8
import (
"fmt"
"strings"
)
// Encryptable is common representation for KeyItem and SessionKeyItem
type Encryptable struct {
Method string
URI *string
IV *string
KeyFormat *string
KeyFormatVersions *string
}
// NewEncryptable takes an attributes map and returns an *Encryptable
func NewEncryptable(attributes map[string]string) *Encryptable {
return &Encryptable{
Method: attributes[MethodTag],
URI: pointerTo(attributes, URITag),
IV: pointerTo(attributes, IVTag),
KeyFormat: pointerTo(attributes, KeyFormatTag),
KeyFormatVersions: pointerTo(attributes, KeyFormatVersionsTag),
}
}
func (e *Encryptable) String() string {
var slice []string
slice = append(slice, fmt.Sprintf(formatString, MethodTag, e.Method))
if e.URI != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, URITag, *e.URI))
}
if e.IV != nil {
slice = append(slice, fmt.Sprintf(formatString, IVTag, *e.IV))
}
if e.KeyFormat != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, KeyFormatTag, *e.KeyFormat))
}
if e.KeyFormatVersions != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, KeyFormatVersionsTag, *e.KeyFormatVersions))
}
return strings.Join(slice, ",")
}
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