{{ define "repo/fragments/diff" }}
{{ $repo := index . 0 }}
{{ $diff := index . 1 }}
{{ $opts := index . 2 }}

{{ $commit := $diff.Commit }}
{{ $diff := $diff.Diff }}
{{ $isSplit := $opts.Split }}
{{ $this := $commit.This }}
{{ $parent := $commit.Parent }}

  {{ $last := sub (len $diff) 1 }}
    {{ range $idx, $hunk := $diff }}
      {{ with $hunk }}
      <section class="mt-4 border border-gray-200 dark:border-gray-700 w-full mx-auto rounded bg-white dark:bg-gray-800 drop-shadow-sm">
        <div id="file-{{ .Name.New }}">
          <div id="diff-file">
            <details open>
              <summary class="list-none cursor-pointer sticky top-0">
                <div id="diff-file-header" class="rounded cursor-pointer bg-white dark:bg-gray-800 flex justify-between">
                  <div id="left-side-items" class="p-2 flex gap-2 items-center overflow-x-auto">
                    <div class="flex gap-1 items-center">
                      {{ $markerstyle := "diff-type p-1 mr-1 font-mono text-sm rounded select-none" }}
                      {{ if .IsNew }}
                      <span class="bg-green-100 text-green-700 dark:bg-green-800/50 dark:text-green-400 {{ $markerstyle }}">ADDED</span>
                      {{ else if .IsDelete }}
                      <span class="bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400 {{ $markerstyle }}">DELETED</span>
                      {{ else if .IsCopy }}
                      <span class="bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 {{ $markerstyle }}">COPIED</span>
                      {{ else if .IsRename }}
                      <span class="bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 {{ $markerstyle }}">RENAMED</span>
                      {{ else }}
                      <span class="bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 {{ $markerstyle }}">MODIFIED</span>
                      {{ end }}

                      {{ template "repo/fragments/diffStatPill" .Stats }}
                    </div>

                    <div class="flex gap-2 items-center overflow-x-auto">
                      {{ if .IsDelete }}
                      <a class="dark:text-white whitespace-nowrap overflow-x-auto" {{if $this }}href="/{{ $repo }}/blob/{{ $this }}/{{ .Name.Old }}"{{end}}>
                        {{ .Name.Old }}
                      </a>
                      {{ else if (or .IsCopy .IsRename) }}
                      <a class="dark:text-white whitespace-nowrap overflow-x-auto" {{if $parent}}href="/{{ $repo }}/blob/{{ $parent }}/{{ .Name.Old }}"{{end}}>
                        {{ .Name.Old }}
                      </a>
                      {{ i "arrow-right" "w-4 h-4" }}
                      <a class="dark:text-white whitespace-nowrap overflow-x-auto" {{if $this}}href="/{{ $repo }}/blob/{{ $this }}/{{ .Name.New }}"{{end}}>
                        {{ .Name.New }}
                      </a>
                      {{ else }}
                      <a class="dark:text-white whitespace-nowrap overflow-x-auto" {{if $this}}href="/{{ $repo }}/blob/{{ $this }}/{{ .Name.New }}"{{end}}>
                        {{ .Name.New }}
                      </a>
                      {{ end }}
                    </div>
                  </div>

                  {{ $iconstyle := "p-1 mx-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded" }}
                  <div id="right-side-items" class="p-2 flex items-center">
                    <a title="top of file" href="#file-{{ .Name.New }}" class="{{ $iconstyle }}">{{ i "arrow-up-to-line" "w-4 h-4" }}</a>
                    {{ if gt $idx 0 }}
                      {{ $prev := index $diff (sub $idx 1) }}
                      <a title="previous file" href="#file-{{ $prev.Name.New }}" class="{{ $iconstyle }}">{{ i "arrow-up" "w-4 h-4" }}</a>
                    {{ end }}

                    {{ if lt $idx $last }}
                      {{ $next := index $diff (add $idx 1) }}
                      <a title="next file" href="#file-{{ $next.Name.New }}" class="{{ $iconstyle }}">{{ i "arrow-down" "w-4 h-4" }}</a>
                    {{ end }}
                  </div>

                </div>
              </summary>

              <div class="transition-all duration-700 ease-in-out">
                {{ if .IsDelete }}
                  <p class="text-center text-gray-400 dark:text-gray-500 p-4">
                  This file has been deleted.
                  </p>
                {{ else if .IsCopy }}
                  <p class="text-center text-gray-400 dark:text-gray-500 p-4">
                  This file has been copied.
                  </p>
                {{ else if .IsBinary }}
                  <p class="text-center text-gray-400 dark:text-gray-500 p-4">
                  This is a binary file and will not be displayed.
                  </p>
                {{ else }}
                  {{ if $isSplit }}
                    {{- template "repo/fragments/splitDiff" .Split -}}
                  {{ else }}
                    {{- template "repo/fragments/unifiedDiff" . -}}
                  {{ end }}
                {{- end -}}
              </div>

            </details>

          </div>
        </div>
      </section>
      {{ end }}
    {{ end }}
{{ end }}

{{ define "unifiedDiffLines" }}
{{ $name := .Name.New }}
<pre class="overflow-x-auto"><div class="overflow-x-auto"><div class="min-w-full inline-block">{{- range .TextFragments -}}<div class="bg-gray-100 dark:bg-gray-700 text-gray-500 dark:text-gray-400 select-none text-center">&middot;&middot;&middot;</div>
 {{- $oldStart := .OldPosition -}}
 {{- $newStart := .NewPosition -}}
 {{- $lineNrStyle := "min-w-[3.5rem] flex-shrink-0 select-none text-right bg-white dark:bg-gray-800 target:bg-yellow-200 target:dark:bg-yellow-600" -}}
 {{- $linkStyle := "text-gray-400 dark:text-gray-500 hover:underline" -}}
 {{- $lineNrSepStyle1 := "" -}}
 {{- $lineNrSepStyle2 := "pr-2 border-r border-gray-200 dark:border-gray-700" -}}
 {{- $containerStyle := "flex min-w-full items-center target:border target:rounded-sm target:border-yellow-200 target:dark:border-yellow-700 scroll-mt-20" -}}
 {{- $addStyle := "bg-green-100 dark:bg-green-800/30 text-green-700 dark:text-green-400 " -}}
 {{- $delStyle := "bg-red-100 dark:bg-red-800/30 text-red-700 dark:text-red-400 " -}}
 {{- $ctxStyle := "bg-white dark:bg-gray-800 text-gray-500 dark:text-gray-400" -}}
 {{- $opStyle := "w-5 flex-shrink-0 select-none text-center" -}}
 {{- range .Lines -}}
   {{- if eq .Op.String "+" -}}
     <div class="{{ $addStyle }} {{ $containerStyle }}" id="{{$name}}-N{{$newStart}}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle1}}"><span aria-hidden="true" class="invisible">{{$newStart}}</span></div>
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle2}}"><a class="{{$linkStyle}}" href="#{{$name}}-N{{$newStart}}">{{ $newStart }}</a></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2">{{ .Line }}</div>
     </div>
     {{- $newStart = add64 $newStart 1 -}}
   {{- end -}}
   {{- if eq .Op.String "-" -}}
     <div class="{{ $delStyle }} {{ $containerStyle }}" id="{{$name}}-O{{$oldStart}}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle1}}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{$oldStart}}">{{ $oldStart }}</a></div>
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle2}}"><span aria-hidden="true" class="invisible">{{$oldStart}}</span></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2">{{ .Line }}</div>
     </div>
     {{- $oldStart = add64 $oldStart 1 -}}
   {{- end -}}
   {{- if eq .Op.String " " -}}
     <div class="{{ $ctxStyle }} {{ $containerStyle }}" id="{{$name}}-O{{$oldStart}}-N{{$newStart}}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle1}}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{$oldStart}}-N{{$newStart}}">{{ $oldStart }}</a></div>
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle2}}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{$oldStart}}-N{{$newStart}}">{{ $newStart }}</a></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2">{{ .Line }}</div>
     </div>
     {{- $newStart = add64 $newStart 1 -}}
     {{- $oldStart = add64 $oldStart 1 -}}
   {{- end -}}
 {{- end -}}
 {{- end -}}</div></div></pre>
{{ end }}

{{ define "splitDiffLines" }}
{{ $name := .Name.New }}
{{- $lineNrStyle := "min-w-[3.5rem] flex-shrink-0 select-none text-right bg-white dark:bg-gray-800" -}}
{{- $linkStyle := "text-gray-400 dark:text-gray-500 hover:underline" -}}
{{- $lineNrSepStyle := "pr-2 border-r border-gray-200 dark:border-gray-700" -}}
{{- $containerStyle := "flex min-w-full items-center target:border target:rounded-sm target:border-yellow-200 target:dark:border-yellow-700 scroll-mt-20" -}}
{{- $emptyStyle := "bg-gray-200/30 dark:bg-gray-700/30" -}}
{{- $addStyle := "bg-green-100 dark:bg-green-800/30 text-green-700 dark:text-green-400" -}}
{{- $delStyle := "bg-red-100 dark:bg-red-800/30 text-red-700 dark:text-red-400 " -}}
{{- $ctxStyle := "bg-white dark:bg-gray-800 text-gray-500 dark:text-gray-400" -}}
{{- $opStyle := "w-5 flex-shrink-0 select-none text-center" -}}
<div class="grid grid-cols-2 divide-x divide-gray-200 dark:divide-gray-700">
<pre class="overflow-x-auto col-span-1"><div class="overflow-x-auto"><div class="min-w-full inline-block">{{- range .TextFragments -}}<div class="bg-gray-100 dark:bg-gray-700 text-gray-500 dark:text-gray-400 select-none text-center">&middot;&middot;&middot;</div>
 {{- range .LeftLines -}}
   {{- if .IsEmpty -}}
     <div class="{{ $emptyStyle }} {{ $containerStyle }}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle}}"><span aria-hidden="true" class="invisible">{{.LineNumber}}</span></div>
       <div class="{{ $opStyle }}"><span aria-hidden="true" class="invisible">{{ .Op.String }}</span></div>
       <div class="px-2 invisible" aria-hidden="true">{{ .Content }}</div>
     </div>
   {{- else if eq .Op.String "-" -}}
     <div class="{{ $delStyle }} {{ $containerStyle }}" id="{{$name}}-O{{.LineNumber}}">
       <div class="{{ $lineNrStyle }} {{ $lineNrSepStyle }}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{.LineNumber}}">{{ .LineNumber }}</a></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2">{{ .Content }}</div>
     </div>
   {{- else if eq .Op.String " " -}}
     <div class="{{ $ctxStyle }} {{ $containerStyle }}" id="{{$name}}-O{{.LineNumber}}">
       <div class="{{ $lineNrStyle }} {{ $lineNrSepStyle }}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{.LineNumber}}">{{ .LineNumber }}</a></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2">{{ .Content }}</div>
     </div>
   {{- end -}}
 {{- end -}}
 {{- end -}}</div></div></pre>

<pre class="overflow-x-auto col-span-1"><div class="overflow-x-auto"><div class="min-w-full inline-block">{{- range .TextFragments -}}<div class="bg-gray-100 dark:bg-gray-700 text-gray-500 dark:text-gray-400 select-none text-center">&middot;&middot;&middot;</div>
 {{- range .RightLines -}}
   {{- if .IsEmpty -}}
     <div class="{{ $emptyStyle }} {{ $containerStyle }}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle}}"><span aria-hidden="true" class="invisible">{{.LineNumber}}</span></div>
       <div class="{{ $opStyle }}"><span aria-hidden="true" class="invisible">{{ .Op.String }}</span></div>
       <div class="px-2 invisible" aria-hidden="true">{{ .Content }}</div>
     </div>
   {{- else if eq .Op.String "+" -}}
     <div class="{{ $addStyle }} {{ $containerStyle }}" id="{{$name}}-N{{.LineNumber}}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle}}"><a class="{{$linkStyle}}" href="#{{$name}}-N{{.LineNumber}}">{{ .LineNumber }}</a></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2" >{{ .Content }}</div>
     </div>
   {{- else if eq .Op.String " " -}}
     <div class="{{ $ctxStyle }} {{ $containerStyle }}" id="{{$name}}-N{{.LineNumber}}">
       <div class="{{$lineNrStyle}} {{$lineNrSepStyle}}"><a class="{{$linkStyle}}" href="#{{$name}}-N{{.LineNumber}}">{{ .LineNumber }}</a></div>
       <div class="{{ $opStyle }}">{{ .Op.String }}</div>
       <div class="px-2">{{ .Content }}</div>
     </div>
   {{- end -}}
 {{- end -}}
 {{- end -}}</div></div></pre>
</div>
{{ end }}

{{ define "statPill" }}
  <div class="flex items-center font-mono text-sm">
    {{ if and .Insertions .Deletions }}
      <span class="rounded-l p-1 select-none bg-green-100 text-green-700 dark:bg-green-800/50 dark:text-green-400">+{{ .Insertions }}</span>
      <span class="rounded-r p-1 select-none bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400">-{{ .Deletions }}</span>
    {{ else if .Insertions }}
      <span class="rounded p-1 select-none bg-green-100 text-green-700 dark:bg-green-800/50 dark:text-green-400">+{{ .Insertions }}</span>
    {{ else if .Deletions }}
      <span class="rounded p-1 select-none bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400">-{{ .Deletions }}</span>
    {{ end }}
  </div>
{{ end }}