From a38c30b57fb46a0709cc38b022c82d5db859adb9 Mon Sep 17 00:00:00 2001
From: Bhavishy <bhavishyrocker2801@gmail.com>
Date: Tue, 7 Apr 2026 14:06:19 +0530
Subject: [PATCH] feat: add deep link customization

---
 src/app/components/IntentHandler.svelte | 201 ++++++++++++++++++++++++
 src/app/components/ThreadCreate.svelte  |  11 +-
 src/routes/intent/+page.svelte          |  16 ++
 3 files changed, 226 insertions(+), 2 deletions(-)
 create mode 100644 src/app/components/IntentHandler.svelte
 create mode 100644 src/routes/intent/+page.svelte

diff --git a/src/app/components/IntentHandler.svelte b/src/app/components/IntentHandler.svelte
new file mode 100644
index 00000000..0b357ef3
--- /dev/null
+++ b/src/app/components/IntentHandler.svelte
@@ -0,0 +1,201 @@
+<script lang="ts">
+  import {onMount} from "svelte"
+  import {get} from "svelte/store"
+  import {goto} from "$app/navigation"
+  import {
+    userFollowList,
+    userBlossomServerList,
+    tagPubkey,
+    publishThunk,
+    addRelay,
+    pubkey,
+    profilesByPubkey,
+  } from "@welshman/app"
+  import {
+    makeEvent,
+    FOLLOWS,
+    BLOSSOM_SERVERS,
+    getListTags,
+    getPubkeyTagValues,
+    getTagValues,
+    tagger,
+    RelayMode,
+    makeProfile,
+  } from "@welshman/util"
+  import {Router} from "@welshman/router"
+  import ModalHeader from "@lib/components/ModalHeader.svelte"
+  import ModalFooter from "@lib/components/ModalFooter.svelte"
+  import ModalBody from "@lib/components/ModalBody.svelte"
+  import ModalTitle from "@lib/components/ModalTitle.svelte"
+  import ModalSubtitle from "@lib/components/ModalSubtitle.svelte"
+  import Button from "@lib/components/Button.svelte"
+  import Icon from "@lib/components/Icon.svelte"
+  import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
+  import {theme} from "@app/util/theme"
+  import {pushModal} from "@app/util/modal"
+  import {pushToast} from "@app/util/toast"
+  import ThreadCreate from "@app/components/ThreadCreate.svelte"
+  import {addSpaceMembership, updateProfile} from "@app/core/commands"
+
+  type Props = {
+    params: URLSearchParams
+    back: () => void
+  }
+
+  const {params, back}: Props = $props()
+
+  const t = params.get("theme")
+  const relays = params.getAll("add_relay")
+  const blossoms = params.getAll("add_blossom")
+  const follows = params.getAll("add_follow")
+  const joins = params.getAll("join")
+
+  const profile_name = params.get("profile_name")
+  const profile_about = params.get("profile_about")
+  const profile_picture = params.get("profile_picture")
+  const profile_banner = params.get("profile_banner")
+
+  const shareRelay = params.get("share_relay") || params.get("share_url")
+  const shareH = params.get("share_h")
+  const shareText = params.get("share_text")
+
+  const hasProfile = !!profile_name || !!profile_about || !!profile_picture || !!profile_banner
+  const hasSettings =
+    !!t ||
+    relays.length > 0 ||
+    blossoms.length > 0 ||
+    follows.length > 0 ||
+    joins.length > 0 ||
+    hasProfile
+  const hasShare = !!shareRelay && !!shareH
+
+  let processing = $state(false)
+
+  onMount(() => {
+    if (!hasSettings) {
+      if (hasShare) {
+        doShare()
+      } else {
+        pushToast({message: "No valid intent actions found", theme: "error"})
+        back()
+      }
+    }
+  })
+
+  const doShare = () => {
+    back()
+    goto(`/spaces/${encodeURIComponent(shareRelay!)}/${shareH}`).then(() => {
+      pushModal(ThreadCreate, {url: shareRelay!, h: shareH!, initialContent: shareText || ""})
+    })
+  }
+
+  const accept = async () => {
+    processing = true
+
+    if (t === "dark" || t === "light" || t === "system") {
+      theme.set(t)
+    }
+
+    if (relays.length > 0) {
+      for (const url of relays) {
+        addRelay(url, RelayMode.Read)
+        addRelay(url, RelayMode.Write)
+      }
+    }
+
+    if (blossoms.length > 0) {
+      const current = getTagValues("server", getListTags(get(userBlossomServerList)))
+      const updated = Array.from(new Set([...current, ...blossoms]))
+      publishThunk({
+        event: makeEvent(BLOSSOM_SERVERS, {tags: updated.map(tagger("server"))}),
+        relays: Router.get().FromUser().getUrls(),
+      })
+    }
+
+    if (follows.length > 0) {
+      const current = getPubkeyTagValues(getListTags(get(userFollowList)))
+      const updated = Array.from(new Set([...current, ...follows]))
+      publishThunk({
+        event: makeEvent(FOLLOWS, {tags: updated.map(tagPubkey)}),
+        relays: Router.get().FromUser().getUrls(),
+      })
+    }
+
+    if (joins.length > 0) {
+      for (const url of joins) {
+        await addSpaceMembership(url)
+      }
+    }
+
+    if (hasProfile) {
+      const p = get(profilesByPubkey).get(get(pubkey)!) || makeProfile()
+      if (profile_name) p.name = profile_name
+      if (profile_about) p.about = profile_about
+      if (profile_picture) p.picture = profile_picture
+      if (profile_banner) p.banner = profile_banner
+      // assuming shouldBroadcast makes it public
+      await updateProfile({profile: p, shouldBroadcast: true})
+    }
+
+    pushToast({message: "Customizations Applied!"})
+
+    if (hasShare) {
+      doShare()
+    } else {
+      back()
+    }
+  }
+</script>
+
+{#if hasSettings}
+  <form class="flex flex-col gap-4 text-center">
+    <ModalHeader>
+      <div class="flex items-center gap-2">
+        <Button class="btn btn-neutral btn-sm" onclick={back}>
+          <Icon icon={AltArrowLeft} />
+        </Button>
+        <div class="flex flex-col items-start gap-1">
+          <ModalTitle>Apply Customization?</ModalTitle>
+          <ModalSubtitle>A link is requesting to customize your app.</ModalSubtitle>
+        </div>
+      </div>
+    </ModalHeader>
+
+    <ModalBody>
+      <p>This link will apply the following changes:</p>
+      <ul class="text-left list-disc list-inside px-6 py-4">
+        {#if t}
+          <li>Set theme to "{t}"</li>
+        {/if}
+        {#if relays.length > 0}
+          <li>Add {relays.length} relay{relays.length > 1 ? "s" : ""} to your settings</li>
+        {/if}
+        {#if blossoms.length > 0}
+          <li>Add {blossoms.length} blossom server{blossoms.length > 1 ? "s" : ""}</li>
+        {/if}
+        {#if follows.length > 0}
+          <li>Follow {follows.length} person{follows.length > 1 ? "s" : ""}</li>
+        {/if}
+        {#if joins.length > 0}
+          <li>Join {joins.length} communit{joins.length > 1 ? "ies" : "y"}</li>
+        {/if}
+        {#if hasProfile}
+          <li>Update your profile metadata</li>
+        {/if}
+        {#if hasShare}
+          <li>Open a new post dialog in a specific room</li>
+        {/if}
+      </ul>
+    </ModalBody>
+
+    <ModalFooter>
+      <Button class="btn btn-neutral" onclick={back}>Cancel</Button>
+      <Button class="btn btn-primary" onclick={accept} disabled={processing}>
+        {#if processing}
+          <span class="loading loading-spinner"></span>
+        {/if}
+        Accept
+      </Button>
+    </ModalFooter>
+  </form>
+{/if}
diff --git a/src/app/components/ThreadCreate.svelte b/src/app/components/ThreadCreate.svelte
index 5f947e0d..5ffc9d4f 100644
--- a/src/app/components/ThreadCreate.svelte
+++ b/src/app/components/ThreadCreate.svelte
@@ -23,9 +23,10 @@
   type Props = {
     url: string
     h?: string
+    initialContent?: string
   }
 
-  const {url, h}: Props = $props()
+  const {url, h, initialContent = ""}: Props = $props()
 
   const shouldProtect = canEnforceNip70(url)
 
@@ -73,7 +74,13 @@
     history.back()
   }
 
-  const editor = makeEditor({url, submit, uploading, placeholder: "What's on your mind?"})
+  const editor = makeEditor({
+    content: initialContent,
+    url,
+    submit,
+    uploading,
+    placeholder: "What's on your mind?",
+  })
 
   let title: string = $state("")
 </script>
diff --git a/src/routes/intent/+page.svelte b/src/routes/intent/+page.svelte
new file mode 100644
index 00000000..15708a89
--- /dev/null
+++ b/src/routes/intent/+page.svelte
@@ -0,0 +1,16 @@
+<script lang="ts">
+  import {page} from "$app/stores"
+  import {goto} from "$app/navigation"
+  import Dialog from "@lib/components/Dialog.svelte"
+  import IntentHandler from "@app/components/IntentHandler.svelte"
+
+  const children = {
+    component: IntentHandler,
+    props: {
+      params: $page.url.searchParams,
+      back: () => goto("/home"),
+    },
+  }
+</script>
+
+<Dialog {children} />