{{- /*
Params:
    Resource: Hugo image resource object (Optional, for processing)
    Widths: Slice of widths to generate for srcset
    Attributes: Map of HTML attributes for the <img> tag
*/ -}}

{{- $resource := .Resource -}}
{{- $widths := .Widths -}}
{{- $attributes := .Attributes | default dict -}}

{{/* Generate srcset if Resource and Widths are provided */}}
{{- if and $widths $resource (reflect.IsImageResourceProcessable $resource) -}}
    {{- $srcset := slice -}}
    {{- range $widths -}}
        {{- if lt . $resource.Width -}}
            {{- $resized := $resource.Resize (printf "%dx" .) -}}
            {{- $srcset = $srcset | append (printf "%s %dw" $resized.RelPermalink .) -}}
        {{- end -}}
    {{- end -}}
    
    {{- if gt (len $srcset) 0 -}}
        {{- $permalink := default $resource.RelPermalink (index $attributes "src") -}}
        {{- $srcset = $srcset | append (printf "%s %dw" $permalink $resource.Width) -}}
        {{- $attributes = merge $attributes (dict "srcset" (delimit $srcset ", ")) -}}
    {{- end -}}
{{- end -}}

<img {{- range $k, $v := $attributes -}}
    {{- if $v -}}
        {{- printf " %s=%q" (lower $k) (printf "%v" $v) | safeHTMLAttr -}}
    {{- end -}}
{{- end -}}>