feat: show per-relay failure, pending breakdown on outgoing messages

src/app/components/RoomItem.svelte

@@ -127,7 +127,7 @@
       <div class:mt-2={showPubkey && event.kind !== MESSAGE}>
         <RoomItemContent {url} event={$innerEvent ?? event} />
         {#if thunk}
-          <ThunkFailure showToastOnRetry {thunk} class="mt-2 text-sm" />
+          <ThunkFailure showToastOnRetry {thunk} class="mt-1 flex justify-end" />
         {/if}
       </div>
     </div>

src/app/components/ThunkFailure.svelte

@@ -2,7 +2,7 @@
   import {stopPropagation} from "svelte/legacy"
   import {noop} from "@welshman/lib"
   import type {AbstractThunk} from "@welshman/app"
-  import {retryThunk, thunkIsComplete, getFailedThunkUrls} from "@welshman/app"
+  import {flattenThunks, getFailedThunkUrls, publishThunk, thunkIsComplete} from "@welshman/app"
   import Danger from "@assets/icons/danger-triangle.svg?dataurl"
   import Icon from "@lib/components/Icon.svelte"
   import Tippy from "@lib/components/Tippy.svelte"
@@ -16,40 +16,45 @@
     class?: string
   }
 
-  let {thunk, showToastOnRetry, ...restProps}: Props = $props()
+  const {thunk, showToastOnRetry, ...restProps}: Props = $props()
 
-  const retry = () => {
-    thunk = retryThunk(thunk)
+  const showFailure = $derived(thunkIsComplete($thunk) && getFailedThunkUrls($thunk).length > 0)
 
-    if (showToastOnRetry) {
-      pushToast({
-        timeout: 30_000,
-        children: {
-          component: ThunkToast,
-          props: {thunk},
-        },
-      })
+  const retry = (url: string) => {
+    for (const child of flattenThunks([thunk])) {
+      if (!child.options.relays.includes(url)) {
+        continue
+      }
+
+      const retried = publishThunk({...child.options, relays: [url]})
+
+      if (showToastOnRetry) {
+        pushToast({
+          timeout: 30_000,
+          children: {
+            component: ThunkToast,
+            props: {thunk: retried},
+          },
+        })
+      }
+
+      return
     }
   }
-
-  const failedUrls = $derived(getFailedThunkUrls($thunk))
-  const showFailure = $derived(thunkIsComplete($thunk) && failedUrls.length > 0)
 </script>
 
 {#if showFailure}
-  {@const url = failedUrls[0]}
-  {@const {status, detail: message} = $thunk.results[url]}
   <button
     class="flex w-full justify-end px-1 text-xs {restProps.class}"
     onclick={stopPropagation(noop)}>
     <Tippy
       class="flex items-center"
       component={ThunkStatusDetail}
-      props={{url, message, status, retry}}
-      params={{interactive: true}}>
+      props={{thunk, retry}}
+      params={{interactive: true, maxWidth: "none"}}>
       {#snippet children()}
-        <span class="flex cursor-pointer items-center gap-1 text-error">
-          <Icon icon={Danger} size={3} />
+        <span class="flex cursor-pointer items-center gap-1 opacity-75">
+          <Icon icon={Danger} class="text-error" size={3} />
           <span>Failed to send!</span>
         </span>
       {/snippet}

src/app/components/ThunkStatus.svelte

@@ -6,17 +6,18 @@
 
   interface Props {
     thunk: AbstractThunk
+    showToastOnRetry?: boolean
     class?: string
   }
 
-  const {thunk, ...restProps}: Props = $props()
+  const {thunk, showToastOnRetry, ...restProps}: Props = $props()
 
   const showFailure = $derived(thunkIsComplete($thunk) && getFailedThunkUrls($thunk).length > 0)
   const showPending = $derived(!thunkIsComplete($thunk))
 </script>
 
 {#if showFailure}
-  <ThunkFailure class={restProps.class} {thunk} />
+  <ThunkFailure class={restProps.class} {thunk} {showToastOnRetry} />
 {:else if showPending}
   <ThunkPending class={restProps.class} {thunk} />
 {/if}

src/app/components/ThunkStatusDetail.svelte

@@ -1,32 +1,69 @@
 <script lang="ts">
+  import {stopPropagation} from "svelte/legacy"
+  import type {AbstractThunk} from "@welshman/app"
+  import {getFailedThunkUrls, getThunkUrlsWithStatus} from "@welshman/app"
   import {PublishStatus} from "@welshman/net"
   import {displayRelayUrl} from "@welshman/util"
+  import CheckCircle from "@assets/icons/check-circle.svg?dataurl"
+  import Danger from "@assets/icons/danger-triangle.svg?dataurl"
+  import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
   import {addPeriod} from "@lib/util"
 
   interface Props {
-    url: string
-    status: string
-    message: string
-    retry: () => void
+    thunk: AbstractThunk
+    retry: (url: string) => void
   }
 
-  let {url, status, message = $bindable(), retry}: Props = $props()
+  const {thunk, retry}: Props = $props()
 
-  $effect(() => {
-    if (!message && status === PublishStatus.Timeout) {
-      message = "request timed out"
+  const successUrls = $derived(getThunkUrlsWithStatus(PublishStatus.Success, $thunk))
+  const failedUrls = $derived(getFailedThunkUrls($thunk))
+  const total = $derived(successUrls.length + failedUrls.length)
+  const isPartial = $derived(successUrls.length > 0 && failedUrls.length > 0)
+
+  const title = $derived(
+    isPartial ? `Partial delivery ${successUrls.length}/${total} relays` : "Failed to send!",
+  )
+
+  const relayMessage = (status: PublishStatus | undefined, detail: string | undefined) => {
+    if (detail) {
+      return detail
     }
 
-    if (!message) {
-      message = "no details recieved"
+    if (status === PublishStatus.Timeout) {
+      return "request timed out"
     }
-  })
+
+    return "no details received"
+  }
 </script>
 
-<div class="card2 bg-alt col-2 shadow-lg">
-  <p>
-    Failed to publish to {displayRelayUrl(url)}: {addPeriod(message)}
-  </p>
-  <Button class="link" onclick={retry}>Retry</Button>
+<div class="card2 bg-alt flex min-w-72 max-w-sm flex-col gap-3 px-4 py-3 shadow-lg">
+  <span class="flex items-center gap-2 text-sm font-medium">
+    <Icon icon={Danger} class="text-error" size={4} />
+    {title}
+  </span>
+  <div class="divider my-0"></div>
+  <div class="flex flex-col gap-3">
+    {#each successUrls as url (url)}
+      <div class="flex items-start gap-2 text-sm">
+        <Icon icon={CheckCircle} class="mt-0.5 shrink-0 text-success" size={4} />
+        <span>{displayRelayUrl(url)}</span>
+      </div>
+    {/each}
+    {#each failedUrls as url (url)}
+      {@const {detail, status} = $thunk.results[url] || {}}
+      <div class="grid grid-cols-[1rem_1fr_auto] items-start gap-x-3 gap-y-1 text-sm">
+        <Icon icon={Danger} class="mt-0.5 text-error" size={4} />
+        <div class="min-w-0">
+          <p class="break-all">{displayRelayUrl(url)}</p>
+          <p class="text-xs opacity-60">{addPeriod(relayMessage(status, detail))}</p>
+        </div>
+        <Button class="link shrink-0 px-1" onclick={stopPropagation(() => retry(url))}>
+          Retry
+        </Button>
+      </div>
+    {/each}
+  </div>
 </div>