From 6705b754d1cd415584183cdaf3c0958c0350160c Mon Sep 17 00:00:00 2001
From: thislight <l1589002388@gmail.com>
Date: Mon, 4 Nov 2024 18:16:23 +0800
Subject: [PATCH] Profile: support subscribe to home timeline

---
 src/profiles/Profile.tsx | 96 +++++++++++++++++++++++++++++++++-------
 1 file changed, 81 insertions(+), 15 deletions(-)

diff --git a/src/profiles/Profile.tsx b/src/profiles/Profile.tsx
index 6976565..4e8a930 100644
--- a/src/profiles/Profile.tsx
+++ b/src/profiles/Profile.tsx
@@ -17,6 +17,7 @@ import {
   AppBar,
   Avatar,
   Button,
+  Checkbox,
   CircularProgress,
   Divider,
   IconButton,
@@ -67,6 +68,8 @@ const Profile: Component = () => {
   const time = createTimeSource();
 
   const menuButId = createUniqueId();
+  const recentTootListId = createUniqueId();
+  const optMenuId = createUniqueId();
 
   const [menuOpen, setMenuOpen] = createSignal(false);
 
@@ -88,17 +91,20 @@ const Profile: Component = () => {
   );
   onCleanup(() => obx.disconnect());
 
-  const [profileErrorUncaught] = createResource(
+  const [profileUncaught] = createResource(
     () => [session().client, params.id] as const,
     async ([client, id]) => {
       return await client.v1.accounts.$select(id).fetch();
     },
   );
 
-  const profile = () =>
-    catchError(profileErrorUncaught, (err) => {
-      console.error(err);
-    });
+  const profile = () => {
+    try {
+      return profileUncaught();
+    } catch (reason) {
+      console.error(reason);
+    }
+  };
 
   const isCurrentSessionProfile = () => {
     return session().account?.inf?.url === profile()?.url;
@@ -127,6 +133,22 @@ const Profile: Component = () => {
     },
   );
 
+  const [relationshipUncaught, { mutate: mutateRelationship }] = createResource(
+    () => [session(), params.id] as const,
+    async ([sess, id]) => {
+      if (!sess.account) return; // No account, no relation
+      const relations = await session().client.v1.accounts.relationships.fetch({
+        id: [id],
+      });
+      return relations.length > 0 ? relations[0] : undefined;
+    },
+  );
+
+  const relationship = () =>
+    catchError(relationshipUncaught, (reason) => {
+      console.error(reason);
+    });
+
   const bannerImg = () => profile()?.header;
   const avatarImg = () => profile()?.avatar;
   const displayName = () =>
@@ -149,10 +171,27 @@ const Profile: Component = () => {
     createRenderEffect(() => (e.innerHTML = sessionDisplayName()));
   };
 
+  const toggleSubscribeHome = async () => {
+    const client = session().client;
+    if (!session().account) return;
+    const isSubscribed = relationship()?.following ?? false;
+    mutateRelationship((x) => Object.assign({ following: !isSubscribed }, x));
+    subscribeMenuState.onClose();
+
+    if (isSubscribed) {
+      const nrel = await client.v1.accounts.$select(params.id).unfollow();
+      mutateRelationship(nrel);
+    } else {
+      const nrel = await client.v1.accounts.$select(params.id).follow();
+      mutateRelationship(nrel);
+    }
+  };
+
   return (
     <Scaffold
       topbar={
         <AppBar
+          role="navigation"
           position="static"
           color={scrolledPastBanner() ? "primary" : "transparent"}
           elevation={scrolledPastBanner() ? undefined : 0}
@@ -186,8 +225,10 @@ const Profile: Component = () => {
 
             <IconButton
               id={menuButId}
+              aria-controls={optMenuId}
               color="inherit"
               onClick={[setMenuOpen, true]}
+              aria-label="Open Options for the Profile"
             >
               <MoreVert />
             </IconButton>
@@ -197,11 +238,13 @@ const Profile: Component = () => {
       class="Profile"
     >
       <Menu
+        id={optMenuId}
         open={menuOpen()}
         onClose={[setMenuOpen, false]}
         anchor={() =>
           document.getElementById(menuButId)!.getBoundingClientRect()
         }
+        aria-label="Options for the Profile"
       >
         <Show when={session().account}>
           <MenuItem>
@@ -296,6 +339,7 @@ const Profile: Component = () => {
           "margin-top":
             "calc(-1 * (var(--scaffold-topbar-height) + var(--safe-area-inset-top)))",
         }}
+        role="presentation"
       >
         <img
           ref={(e) => obx.observe(e)}
@@ -306,6 +350,7 @@ const Profile: Component = () => {
             height: "100%",
           }}
           crossOrigin="anonymous"
+          alt={`Banner image for ${profile()?.displayName || "the user"}`}
           onLoad={(event) => {
             const ins = new FastAverageColor();
             const colors = ins.getColor(event.currentTarget);
@@ -319,14 +364,21 @@ const Profile: Component = () => {
       </div>
 
       <Menu {...subscribeMenuState}>
-        <MenuItem disabled>
+        <MenuItem
+          onClick={toggleSubscribeHome}
+          aria-details="Subscribe or Unsubscribe this account on your home timeline"
+        >
           <ListItemAvatar>
             <Avatar src={session().account?.inf?.avatar}></Avatar>
           </ListItemAvatar>
-          <ListItemText>
+          <ListItemText
+            secondary={relationship()?.following ? "Subscribed" : undefined}
+          >
             <span ref={useSessionDisplayName}></span>
             <span>'s Home</span>
           </ListItemText>
+
+          <Checkbox checked={relationship()?.following ?? false} />
         </MenuItem>
       </Menu>
 
@@ -337,9 +389,10 @@ const Profile: Component = () => {
           color: bannerSampledColors()?.text,
         }}
       >
-        <div class="acct-grp">
+        <section class="acct-grp">
           <Avatar
             src={avatarImg()}
+            alt={`${profile()?.displayName || "the user"}'s avatar`}
             sx={{
               marginTop: "calc(-16px - 72px / 2)",
               width: "72px",
@@ -351,12 +404,19 @@ const Profile: Component = () => {
               ref={(e) =>
                 createRenderEffect(() => (e.innerHTML = displayName()))
               }
+              aria-label="Display name"
             ></span>
-            <span>{fullUsername()}</span>
+            <span aria-label="Complete username">{fullUsername()}</span>
           </div>
           <div>
             <Switch>
-              <Match when={!session().account || profileErrorUncaught.loading}>
+              <Match
+                when={
+                  !session().account ||
+                  profileUncaught.loading ||
+                  profileUncaught.error
+                }
+              >
                 {<></>}
               </Match>
               <Match when={isCurrentSessionProfile()}>
@@ -374,20 +434,24 @@ const Profile: Component = () => {
                     );
                   }}
                 >
-                  Subscribe
+                  {relationship()?.following ? "Subscribed" : "Subscribe"}
                 </Button>
               </Match>
             </Switch>
           </div>
-        </div>
-        <div
+        </section>
+        <section
           class="description"
+          aria-label={`${profile()?.displayName || "the user"}'s description`}
           ref={(e) =>
             createRenderEffect(() => (e.innerHTML = description() || ""))
           }
-        ></div>
+        ></section>
 
-        <table class="acct-fields">
+        <table
+          class="acct-fields"
+          aria-label={`${profile()?.displayName || "the user"}'s fields`}
+        >
           <tbody>
             <For each={profile()?.fields ?? []}>
               {(item, index) => {
@@ -436,6 +500,7 @@ const Profile: Component = () => {
           <Divider />
         </Show>
         <TootList
+          id={recentTootListId}
           threads={recentToots.list}
           onUnknownThread={recentToots.getPath}
           onChangeToot={recentToots.set}
@@ -451,6 +516,7 @@ const Profile: Component = () => {
         >
           <IconButton
             aria-label="Load More"
+            aria-controls={recentTootListId}
             size="large"
             color="primary"
             onClick={[refetchRecentToots, "prev"]}