{{- /*
Renders an image with the given class, alt, and sizes.
@contetx {alt} alt text for the image.
@context {image} the image resource.
@context {sizes} each size to include in the srcset.
@context {classes} classes for the image.
*/}}


{{ $alt := .alt }}
{{ $image := .image }}
{{ $sizes := .sizes }}
{{ $classes := .classes }}

<img class="{{ delimit $classes " " }}"
        {{ $srcsetParts := slice }}
        {{ $sizesParts := slice }}
        {{ $len := len $sizes }}

        {{/* Loop through widths to resize images and build attributes */}}
        {{ range $index, $width := $sizes }}
            {{ $resizeSpec := printf "%dx webp q90" $width }}
            {{ $resized := ($image.Resize $resizeSpec) }}

            {{ $srcsetParts = $srcsetParts | append (printf "%s %dw" $resized.RelPermalink $width) }}

            {{/* Build sizes: media query for all but the last width */}}
            {{ if lt $index (sub $len 1) }}
                {{ $nextWidth := index $sizes (add $index 1) }}
                {{ $sizesParts = $sizesParts | append (printf "(max-width: %dpx) %dpx" $nextWidth $width) }}
            {{ else }}
                {{ $sizesParts = $sizesParts | append (printf "%dpx" $width) }}
            {{ end }}
        {{ end }}

        {{/* Set src to the smallest image */}}
        {{ $smallestWidth := index $sizes 0 }}
        {{ $smallestResizeSpec := printf "%dx webp q90" $smallestWidth }}
        {{ $smallest := ($image.Resize $smallestResizeSpec) }}
        {{ $src := $smallest.RelPermalink }}

        {{/* Output attributes */}}
        src="{{ $src }}"
        srcset="{{ delimit $srcsetParts ", " }}"
        sizes="{{ delimit $sizesParts ", " }}"
        alt="{{ $alt }}"
>