From 437cfa7bc4d67d3a981c6fcf97d0a32ab214f63b Mon Sep 17 00:00:00 2001
From: Jon Staab <shtaab@gmail.com>
Date: Thu, 15 Aug 2024 14:30:55 -0700
Subject: [PATCH] Get chat view started

---
 src/app.css                          |  4 ++
 src/app/components/GroupNote.svelte  | 48 +++++++++++++++++
 src/app/components/PrimaryNav.svelte |  9 +---
 src/app/state.ts                     | 23 ++++----
 src/assets/icons/Arrow Right.svg     |  3 ++
 src/lib/components/Avatar.svelte     | 17 ++++++
 src/lib/components/Icon.svelte       |  2 +
 src/lib/util.ts                      | 30 +++++++++++
 src/routes/spaces/[nom]/+page.svelte | 78 ++++++++++++++++++++++++++--
 src/routes/spaces/[nom]/+page.ts     |  1 +
 10 files changed, 195 insertions(+), 20 deletions(-)
 create mode 100644 src/app/components/GroupNote.svelte
 create mode 100644 src/assets/icons/Arrow Right.svg
 create mode 100644 src/lib/components/Avatar.svelte
 create mode 100644 src/routes/spaces/[nom]/+page.ts

diff --git a/src/app.css b/src/app.css
index 25e6d2e..386b8cf 100644
--- a/src/app.css
+++ b/src/app.css
@@ -79,3 +79,7 @@
 .input input::placeholder {
   opacity: 0.5;
 }
+
+.shadow-top-xl {
+  @apply shadow-[0_20px_25px_-5px_rgb(0,0,0,0.1)_0_8px_10px_-6px_rgb(0,0,0,0.1)];
+}
diff --git a/src/app/components/GroupNote.svelte b/src/app/components/GroupNote.svelte
new file mode 100644
index 0000000..37b5430
--- /dev/null
+++ b/src/app/components/GroupNote.svelte
@@ -0,0 +1,48 @@
+<script lang="ts">
+  import {readable} from 'svelte/store'
+  import type {CustomEvent} from '@welshman/util'
+  import {GROUP_REPLY, getAncestorTags, displayProfile, displayPubkey} from '@welshman/util'
+  import {deriveEvent} from '@welshman/store'
+  import {fly} from '@lib/transition'
+  import Icon from '@lib/components/Icon.svelte'
+  import Avatar from '@lib/components/Avatar.svelte'
+  import {repository} from '@app/base'
+  import {deriveProfile} from '@app/state'
+
+  export let event: CustomEvent
+  export let showPubkey: boolean
+
+  const profile = deriveProfile(event.pubkey)
+  const {replies} = getAncestorTags(event.tags)
+  const parentEvent = replies.length > 0
+    ? deriveEvent(repository, replies[0][1])
+    : readable(null)
+
+  $: parentProfile = deriveProfile($parentEvent?.pubkey)
+</script>
+
+<div in:fly>
+  {#if event.kind === GROUP_REPLY}
+    <div class="pl-12">
+      <div class="text-xs flex gap-1">
+        <Icon icon="arrow-right" />
+        <Avatar src={$parentProfile?.picture} size={4}/>
+        <p class="text-primary">{displayProfile($parentProfile, displayPubkey($parentEvent.pubkey))}<p>
+        <p class="whitespace-nowrap overflow-hidden text-ellipsis">{$parentEvent.content}</p>
+      </div>
+    </div>
+  {/if}
+  <div class="flex gap-2">
+    {#if showPubkey}
+      <Avatar src={$profile?.picture} class="border border-solid border-base-content" size={10} />
+    {:else}
+      <div class="w-10" />
+    {/if}
+    <div class="-mt-1">
+      {#if showPubkey}
+        <strong class="text-sm text-primary">{displayProfile($profile, displayPubkey(event.pubkey))}</strong>
+      {/if}
+      <p class="text-sm">{event.content}</p>
+    </div>
+  </div>
+</div>
diff --git a/src/app/components/PrimaryNav.svelte b/src/app/components/PrimaryNav.svelte
index 94439d1..db9a339 100644
--- a/src/app/components/PrimaryNav.svelte
+++ b/src/app/components/PrimaryNav.svelte
@@ -13,6 +13,7 @@
 	import {quintOut} from 'svelte/easing'
   import {identity, nth} from '@welshman/lib'
   import Icon from "@lib/components/Icon.svelte"
+  import Avatar from "@lib/components/Avatar.svelte"
   import PrimaryNavItem from "@lib/components/PrimaryNavItem.svelte"
   import SpaceAdd from '@app/components/SpaceAdd.svelte'
   import {session} from "@app/base"
@@ -53,13 +54,7 @@
   <div class="flex h-full flex-col justify-between">
     <div>
       <PrimaryNavItem on:click={gotoHome}>
-        <div class="!flex w-10 items-center justify-center rounded-full border border-solid border-base-300">
-          {#if $userProfile?.picture}
-            <img alt="" src={$userProfile.picture} />
-          {:else}
-            <Icon icon="user-rounded" size={7} />
-          {/if}
-        </div>
+        <Avatar src={$userProfile?.picture} class="border border-solid border-base-300 !w-10 !h-10" size={7} />
       </PrimaryNavItem>
       {#each $userGroupsByNom.entries() as [nom, qualifiedGroups] (nom)}
         {@const qualifiedGroup = qualifiedGroups[0]}
diff --git a/src/app/state.ts b/src/app/state.ts
index d3f0946..db1989f 100644
--- a/src/app/state.ts
+++ b/src/app/state.ts
@@ -2,8 +2,8 @@ import type {Readable} from "svelte/store"
 import type {FuseResult} from 'fuse.js'
 import {get, writable, readable, derived} from "svelte/store"
 import type {Maybe} from "@welshman/lib"
-import {uniq, uniqBy, groupBy, pushToMapKey, nthEq, batcher, postJson, stripProtocol, assoc, indexBy, now} from "@welshman/lib"
-import {getIdentifier, getRelayTags, getRelayTagValues, normalizeRelayUrl, getPubkeyTagValues, GROUP_META, PROFILE, RELAYS, FOLLOWS, MUTES, GROUPS, getGroupTags, readProfile, readList, asDecryptedEvent, editList, makeList, createList} from "@welshman/util"
+import {max, uniq, between, uniqBy, groupBy, pushToMapKey, nthEq, batcher, postJson, stripProtocol, assoc, indexBy, now} from "@welshman/lib"
+import {getIdentifier, getRelayTags, getRelayTagValues, normalizeRelayUrl, getPubkeyTagValues, GROUP_META, PROFILE, RELAYS, FOLLOWS, MUTES, GROUPS, getGroupTags, readProfile, readList, asDecryptedEvent, editList, makeList, createList, GROUP_JOIN, GROUP_ADD_USER} from "@welshman/util"
 import type {Filter, SignedEvent, CustomEvent, PublishedProfile, PublishedList} from '@welshman/util'
 import type {SubscribeRequest, PublishRequest} from '@welshman/net'
 import {publish as basePublish, subscribe} from '@welshman/net'
@@ -75,16 +75,16 @@ export const publish = (request: PublishRequest) => {
 }
 
 export const load = (request: SubscribeRequest) =>
-  new Promise<Maybe<CustomEvent>>(resolve => {
+  new Promise<CustomEvent[]>(resolve => {
     const sub = subscribe({closeOnEose: true, timeout: 3000, delay: 50, ...request})
+    const events: CustomEvent[] = []
 
     sub.emitter.on('event', (url: string, e: SignedEvent) => {
       repository.publish(e)
-      sub.close()
-      resolve(e)
+      events.push(e)
     })
 
-    sub.emitter.on('complete', () => resolve(undefined))
+    sub.emitter.on('complete', () => resolve(events))
   })
 
 // Freshness
@@ -448,7 +448,7 @@ export const groupMemberships = deriveEventsMapped<PublishedGroupMembership>(rep
 
 export const {
   indexStore: groupMembershipByPubkey,
-  getIndex: getGroupMembersipByPubkey,
+  getIndex: getGroupMembershipsByPubkey,
   deriveItem: deriveGroupMembership,
   loadItem: loadGroupMembership,
 } = createCollection({
@@ -473,7 +473,7 @@ export type GroupMessage = {
 export const readGroupMessage = (event: CustomEvent): Maybe<GroupMessage> => {
   const nom = event.tags.find(nthEq(0, 'h'))?.[1]
 
-  if (!nom) {
+  if (!nom || between(GROUP_ADD_USER - 1, GROUP_JOIN + 1, event.kind)) {
     return undefined
   }
 
@@ -501,7 +501,7 @@ export const groupConversations = derived(groupMessages, $groupMessages => {
 
 export const {
   indexStore: groupConversationByNom,
-  getIndex: getGroupMembersipByNom,
+  getIndex: getGroupConversationsByNom,
   deriveItem: deriveGroupConversation,
   loadItem: loadGroupConversation,
 } = createCollection({
@@ -510,12 +510,15 @@ export const {
   getKey: groupConversation => groupConversation.nom,
   load: (nom: string, hints = [], request: Partial<SubscribeRequest> = {}) => {
     const relays = [...hints, ...get(relayUrlsByNom).get(nom) || []]
+    const conversation = get(groupConversations).find(c => c.nom === nom)
+    const timestamps = conversation?.messages.map(m => m.event.created_at) || []
+    const since = Math.min(0, max(timestamps) - 3600)
 
     if (relays.length === 0) {
       console.warn(`Attempted to load conversation for ${nom} with no qualified groups`)
     }
 
-    return load({...request, relays, filters: [{'#h': [nom]}]})
+    return load({...request, relays, filters: [{'#h': [nom], since}]})
   },
 })
 
diff --git a/src/assets/icons/Arrow Right.svg b/src/assets/icons/Arrow Right.svg
new file mode 100644
index 0000000..938becc
--- /dev/null
+++ b/src/assets/icons/Arrow Right.svg	
@@ -0,0 +1,3 @@
+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4 12H20M20 12L14 6M20 12L14 18" stroke="#1C274C" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>
diff --git a/src/lib/components/Avatar.svelte b/src/lib/components/Avatar.svelte
new file mode 100644
index 0000000..29fbf0f
--- /dev/null
+++ b/src/lib/components/Avatar.svelte
@@ -0,0 +1,17 @@
+<script lang="ts">
+  import cx from 'classnames'
+  import Icon from "@lib/components/Icon.svelte"
+
+  export let src
+  export let size = 7
+</script>
+
+<div
+  class={cx($$props.class, "!flex items-center justify-center rounded-full overflow-hidden")}
+  style={`width: ${size * 4}px; height: ${size * 4}px;`}>
+  {#if src}
+    <img alt="" {src} />
+  {:else}
+    <Icon icon="user-rounded" size={Math.round(size * .7)} />
+  {/if}
+</div>
diff --git a/src/lib/components/Icon.svelte b/src/lib/components/Icon.svelte
index 0ec4d59..e54566b 100644
--- a/src/lib/components/Icon.svelte
+++ b/src/lib/components/Icon.svelte
@@ -12,6 +12,7 @@
   import AddCircle from "@assets/icons/Add Circle.svg?dataurl"
   import AltArrowRight from "@assets/icons/Alt Arrow Right.svg?dataurl"
   import AltArrowLeft from "@assets/icons/Alt Arrow Left.svg?dataurl"
+  import ArrowRight from "@assets/icons/Arrow Right.svg?dataurl"
   import CheckCircle from "@assets/icons/Check Circle.svg?dataurl"
   import ClipboardText from "@assets/icons/Clipboard Text.svg?dataurl"
   import CloseCircle from "@assets/icons/Close Circle.svg?dataurl"
@@ -48,6 +49,7 @@
     "add-circle": AddCircle,
     "alt-arrow-right": AltArrowRight,
     "alt-arrow-left": AltArrowLeft,
+    "arrow-right": ArrowRight,
     "check-circle": CheckCircle,
     "clipboard-text": ClipboardText,
     "close-circle": CloseCircle,
diff --git a/src/lib/util.ts b/src/lib/util.ts
index faf5d7a..08f5d16 100644
--- a/src/lib/util.ts
+++ b/src/lib/util.ts
@@ -60,3 +60,33 @@ export const createSearch = <V, T>(data: T[], opts: SearchOptions<V, T>) => {
     searchValues: (term: string) => search(term).map(opts.getValue),
   }
 }
+
+
+export const secondsToDate = (ts: number) => new Date(ts * 1000)
+
+export const dateToSeconds = (date: Date) => Math.round(date.valueOf() / 1000)
+
+export const getTimeZone = () => new Date().toString().match(/GMT[^\s]+/)
+
+export const createLocalDate = (dateString: any) => new Date(`${dateString} ${getTimeZone()}`)
+
+export const getLocale = () => new Intl.DateTimeFormat().resolvedOptions().locale
+
+export const formatTimestamp = (ts: number) => {
+  const formatter = new Intl.DateTimeFormat(getLocale(), {
+    dateStyle: "short",
+    timeStyle: "short",
+  })
+
+  return formatter.format(secondsToDate(ts))
+}
+
+export const formatTimestampAsDate = (ts: number) => {
+  const formatter = new Intl.DateTimeFormat(getLocale(), {
+    year: "numeric",
+    month: "long",
+    day: "numeric",
+  })
+
+  return formatter.format(secondsToDate(ts))
+}
diff --git a/src/routes/spaces/[nom]/+page.svelte b/src/routes/spaces/[nom]/+page.svelte
index 2774523..13f7b38 100644
--- a/src/routes/spaces/[nom]/+page.svelte
+++ b/src/routes/spaces/[nom]/+page.svelte
@@ -1,16 +1,88 @@
 <script lang="ts">
+  import {sleep, sortBy} from '@welshman/lib'
+  import type {CustomEvent} from '@welshman/util'
   import {page} from '$app/stores'
+  import {fly} from '@lib/transition'
+  import {formatTimestampAsDate} from '@lib/util'
+  import Spinner from '@lib/components/Spinner.svelte'
+  import Avatar from '@lib/components/Avatar.svelte'
+  import GroupNote from '@app/components/GroupNote.svelte'
   import {deriveGroup, deriveGroupConversation} from '@app/state'
 
   const group = deriveGroup($page.params.nom)
   const conversation = deriveGroupConversation($page.params.nom)
+
+  const assertEvent = (e: any) => e as CustomEvent
+
+  type Element = {
+    id: string
+    type: 'date' | 'note',
+    value: string | CustomEvent
+    showPubkey: boolean
+  }
+
+  let loading = true
+  let elements: Element[] = []
+
+  $: {
+    elements = []
+
+    let previousDate
+    let previousPubkey
+
+    for (const {event} of sortBy(m => m.event.created_at, $conversation?.messages || [])) {
+      const {id, kind, pubkey, created_at} = event
+      const date = formatTimestampAsDate(created_at)
+
+      if (date !== previousDate) {
+        elements.push({type: 'date', value: date, id: date, showPubkey: false})
+      }
+
+      elements.push({
+        id,
+        type: 'note',
+        value: event,
+        showPubkey: date !== previousDate || previousPubkey !== pubkey,
+      })
+
+      previousDate = date
+      previousPubkey = pubkey
+    }
+
+    elements.reverse()
+  }
+
+  setTimeout(() => {
+    loading = false
+  }, 3000)
 </script>
 
 <div class="h-screen flex flex-col">
-  <div class="min-h-32 bg-base-100">
+  <div class="min-h-24 bg-base-100 shadow-xl">
   </div>
-  <div class="flex-grow overflow-auto">
+  <div class="flex-grow overflow-auto flex flex-col-reverse gap-2 p-2">
+    {#each elements as {type, id, value, showPubkey} (id)}
+      {#if type === "date"}
+        <div class="flex gap-2 items-center text-xs opacity-50">
+          <div class="h-px flex-grow bg-base-content" />
+          <p>{value}</p>
+          <div class="h-px flex-grow bg-base-content" />
+        </div>
+      {:else}
+        <GroupNote event={assertEvent(value)} {showPubkey} />
+      {/if}
+    {/each}
+    <p class="flex justify-center items-center py-20 h-10">
+      <Spinner {loading}>
+        {#if loading}
+          Looking for messages...
+        {:else}
+          End of message history
+        {/if}
+      </Spinner>
+    </p>
   </div>
-  <div class="min-h-32 bg-base-100">
+  <div class="min-h-32 bg-base-100 shadow-top-xl">
   </div>
 </div>
+
diff --git a/src/routes/spaces/[nom]/+page.ts b/src/routes/spaces/[nom]/+page.ts
new file mode 100644
index 0000000..9786e09
--- /dev/null
+++ b/src/routes/spaces/[nom]/+page.ts
@@ -0,0 +1 @@
+export const prerender = false