appview: pulls: 0 indexed rounds and view raw patch

appview/pages/templates/repo/pulls/patch.html

···
 {{ define "title" }}
-    {{ $oneIndexedRound := add .Round 1 }}
-    patch of {{ .Pull.Title }} · round #{{ $oneIndexedRound }} · pull #{{ .Pull.PullId }} · {{ .RepoInfo.FullName }}
+    patch of {{ .Pull.Title }} · round #{{ .Round }} · pull #{{ .Pull.PullId }} · {{ .RepoInfo.FullName }}
 {{ end }}
 
 {{ define "content" }}
-  {{ $oneIndexedRound := add .Round 1 }}
   {{ $stat := .Diff.Stat }}
     <div class="rounded drop-shadow-sm bg-white py-4 px-6">
       <header class="pb-2">
···
                 back
               </a>
               <span class="select-none before:content-['\00B7']"></span>
-              round #{{ $oneIndexedRound }}
+              round #{{ .Round }}
+              <span class="select-none before:content-['\00B7']"></span>
+              <a href="/{{ .RepoInfo.FullName }}/pulls/{{ .Pull.PullId }}/round/{{ .Round }}.patch">
+                  view raw
+              </a>
           </div>
           <div class="border-t border-gray-200 my-2"></div>
           <h1 class="text-2xl mt-3">

appview/pages/templates/repo/pulls/pull.html

···
   {{ range $idx, $item := .Pull.Submissions }}
     {{ $diff := $item.AsNiceDiff $targetBranch }}
     {{ with $item }}
-    {{ $oneIndexedRound := add .RoundNumber 1 }}
     <details {{ if eq $idx $lastIdx }}open{{ end }}>
-        <summary id="round-#{{ $oneIndexedRound }}" class="list-none cursor-pointer">
+        <summary id="round-#{{ .RoundNumber }}" class="list-none cursor-pointer">
           <div class="flex flex-wrap gap-2 items-center">
             <!-- round number -->
             <div class="rounded bg-white drop-shadow-sm px-3 py-2">
-              #{{ $oneIndexedRound }}
+              #{{ .RoundNumber }}
             </div>
             <!-- round summary -->
             <div class="rounded drop-shadow-sm bg-white p-2 text-gray-500">
···
                 <span class="hidden md:inline">{{$re}}submitted</span>
                 by <a href="/{{ $owner }}">{{ $owner }}</a>
                 <span class="select-none before:content-['\00B7']"></span>
-                <a class="text-gray-500 hover:text-gray-500" href="#round-#{{ $oneIndexedRound }}"><time>{{ .Created | shortTimeFmt }}</time></a>
+                <a class="text-gray-500 hover:text-gray-500" href="#round-#{{ .RoundNumber }}"><time>{{ .Created | shortTimeFmt }}</time></a>
                 <span class="select-none before:content-['·']"></span>
                 {{ $s := "s" }}
                 {{ if eq (len .Comments) 1 }}

appview/state/pull.go

···
 
 }
 
+func (s *State) RepoPullPatchRaw(w http.ResponseWriter, r *http.Request) {
+	pull, ok := r.Context().Value("pull").(*db.Pull)
+	if !ok {
+		log.Println("failed to get pull")
+		s.pages.Notice(w, "pull-error", "Failed to edit patch. Try again later.")
+		return
+	}
+
+	roundId := chi.URLParam(r, "round")
+	roundIdInt, err := strconv.Atoi(roundId)
+	if err != nil || roundIdInt >= len(pull.Submissions) {
+		http.Error(w, "bad round id", http.StatusBadRequest)
+		log.Println("failed to parse round id", err)
+		return
+	}
+
+	identsToResolve := []string{pull.OwnerDid}
+	resolvedIds := s.resolver.ResolveIdents(r.Context(), identsToResolve)
+	didHandleMap := make(map[string]string)
+	for _, identity := range resolvedIds {
+		if !identity.Handle.IsInvalidHandle() {
+			didHandleMap[identity.DID.String()] = fmt.Sprintf("@%s", identity.Handle.String())
+		} else {
+			didHandleMap[identity.DID.String()] = identity.DID.String()
+		}
+	}
+
+	w.Header().Set("Content-Type", "text/plain")
+	w.Write([]byte(pull.Submissions[roundIdInt].Patch))
+}
+
 func (s *State) RepoPulls(w http.ResponseWriter, r *http.Request) {
 	user := s.auth.GetUser(r)
 	params := r.URL.Query()

appview/state/router.go

···
 						})
 					})
 
+					r.Route("/round/{round}.patch", func(r chi.Router) {
+						r.Get("/", s.RepoPullPatchRaw)
+					})
+
 					// authorized requests below this point
 					r.Group(func(r chi.Router) {
 						r.Use(AuthMiddleware(s))