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<div class="space-y-2 flex-1"><div class="space-y-7" id="module_doc"><div class="markdown"><p>Decides which of a playlist's dumps a viewer may see. The playlist service
filters its listings with it, the WebSocket service filters each client's
<code>playlist_dumps_updated</code> message the same way, and the queries that list
playlists count their dumps by the same rule.</p>
</div><section class="section" id="api&#x2F;lib&#x2F;playlist-members_ts_functions"><div>
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Functions</h2></div><div class="namespaceSection"><div id="namespace_dumpfiguresfor" class="namespaceItem" ><div class="docNodeKindIcon"><div class="text-Function bg-Function/15 dark:text-FunctionDark dark:bg-FunctionDark/15" title="Function">f</div></div>
<div class="namespaceItemContent">
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;dumpFiguresFor.html" title="dumpFiguresFor">
<span>dumpFiguresFor</span><span>(<div class="ml-4"><div><span>members<span>: <span class="td-ref">DatedPlaylistMember</span>[]</span></span>,</div><div><span>playlist<span>: <span class="td-ref">Pick</span>&lt;<span class="td-ref">Playlist</span><span>, </span><span class="td-str">"userId"</span>&gt;</span></span>,</div><div><span>viewerId<span>: <span><span class="td-kw">string</span><span class="td-op"> | </span><span class="td-kw">null</span><span class="td-op"> | </span><span class="td-kw">undefined</span></span></span></span></div></div>)<span>: <div class="ml-indent"><span><span class="td-ref">Required</span>&lt;<span class="td-ref">Pick</span>&lt;<span class="td-ref">Playlist</span><span>, </span><span class="td-str">"dumpCount"</span>&gt;&gt;</span><br /><span><span class="td-op"> & </span><span class="td-ref">Pick</span>&lt;<span class="td-ref">Playlist</span><span>, </span><span class="td-str">"lastDumpAt"</span>&gt;</span></div></span></span></a><div class="namespaceItemContentDoc"><div class="markdown_summary"><p>Returns what <code>playlist</code> says of its dumps to the viewer, <code>members</code> being
all of them: the <code>dumpCount</code> and <code>lastDumpAt</code> that
<a href="../../.././api/lib/playlist-members.ts/~/VISIBLE_DUMP_FIGURES.html">VISIBLE_DUMP_FIGURES</a> reads in a query. The WebSocket service puts
them on the playlist each socket is sent.</p>
</div></div></div>
</div><div id="namespace_ismembervisibleto" class="namespaceItem" ><div class="docNodeKindIcon"><div class="text-Function bg-Function/15 dark:text-FunctionDark dark:bg-FunctionDark/15" title="Function">f</div></div>
<div class="namespaceItemContent">
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;isMemberVisibleTo.html" title="isMemberVisibleTo">
<span>isMemberVisibleTo</span><span>(<div class="ml-4"><div><span>member<span>: <span class="td-ref">PlaylistMember</span></span></span>,</div><div><span>playlist<span>: <span class="td-ref">Pick</span>&lt;<span class="td-ref">Playlist</span><span>, </span><span class="td-str">"userId"</span>&gt;</span></span>,</div><div><span>viewerId<span>: <span><span class="td-kw">string</span><span class="td-op"> | </span><span class="td-kw">null</span><span class="td-op"> | </span><span class="td-kw">undefined</span></span></span></span></div></div>)<span>: <span class="td-kw">boolean</span></span></span></a><div class="namespaceItemContentDoc"><div class="markdown_summary"><p>Checks whether <code>viewerId</code> may see <code>member</code> in <code>playlist</code>. A public dump is
visible to all. A private dump is visible only to the playlist's owner, and
only if they posted it: moderators don't see it, and neither does the owner
once someone else's dump in their playlist goes private. A null or undefined
<code>viewerId</code> is a signed-out viewer.</p>
</div></div></div>
</div></div>
</section>
<section class="section" id="api&#x2F;lib&#x2F;playlist-members_ts_interfaces"><div>
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Interfaces</h2></div><div class="namespaceSection"><div id="namespace_datedplaylistmember" class="namespaceItem" ><div class="docNodeKindIcon"><div class="text-Interface bg-Interface/15 dark:text-InterfaceDark dark:bg-InterfaceDark/15" title="Interface">I</div></div>
<div class="namespaceItemContent">
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;DatedPlaylistMember.html" title="DatedPlaylistMember">
<span>DatedPlaylistMember</span></a><div class="namespaceItemContentDoc"><div class="markdown_summary"><p>The fields of a playlist's dump that <a href="../../.././api/lib/playlist-members.ts/~/dumpFiguresFor.html">dumpFiguresFor</a> needs: those
that tell who may see it, and when it was added. The playlist service reads
them for its broadcasts.</p>
</div></div><ul class="namespaceItemContentSubItems"><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;DatedPlaylistMember.html#property_addedat">
<span>addedAt</span><span>: <span class="td-ref">Date</span></span></a></li></ul></div>
</div><div id="namespace_playlistmember" class="namespaceItem" ><div class="docNodeKindIcon"><div class="text-Interface bg-Interface/15 dark:text-InterfaceDark dark:bg-InterfaceDark/15" title="Interface">I</div></div>
<div class="namespaceItemContent">
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;PlaylistMember.html" title="PlaylistMember">
<span>PlaylistMember</span></a><div class="namespaceItemContentDoc"><div class="markdown_summary"><p>The fields of a playlist's dump that <a href="../../.././api/lib/playlist-members.ts/~/isMemberVisibleTo.html">isMemberVisibleTo</a> needs. A
<code>Dump</code> has them. For its broadcasts, the playlist service reads only these.</p>
</div></div><ul class="namespaceItemContentSubItems"><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;PlaylistMember.html#property_id">
<span>id</span><span>: <span class="td-kw">string</span></span></a></li><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;PlaylistMember.html#property_isprivate">
<span>isPrivate</span><span>: <span class="td-kw">boolean</span></span></a></li><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;PlaylistMember.html#property_userid">
<span>userId</span><span>: <span class="td-kw">string</span></span></a><div class="namespaceItemContentDoc"><div class="markdown_summary"><p>The dump's poster, not the playlist's owner.</p>
</div></div></li></ul></div>
</div></div>
</section>
<section class="section" id="api&#x2F;lib&#x2F;playlist-members_ts_variables"><div>
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</a>
Variables</h2></div><div class="namespaceSection"><div id="namespace_visible_dump_figures" class="namespaceItem" ><div class="docNodeKindIcon"><div class="text-Variable bg-Variable/15 dark:text-VariableDark dark:bg-VariableDark/15" title="Variable">v</div></div>
<div class="namespaceItemContent">
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;lib&#x2F;playlist-members.ts&#x2F;~&#x2F;VISIBLE_DUMP_FIGURES.html" title="VISIBLE_DUMP_FIGURES">
<span>VISIBLE_DUMP_FIGURES</span><span>: <span class="td-kw">string</span></span></a><div class="namespaceItemContentDoc"><div class="markdown_summary"><p>The <code>dump_count</code> and <code>last_dump_at</code> columns of a query on <code>playlists p</code>:
how many of the playlist's dumps the viewer may see, by
<a href="../../.././api/lib/playlist-members.ts/~/isMemberVisibleTo.html">isMemberVisibleTo</a>'s rule, and when the latest of them was added,
null without any. Both read the viewer's id, or <code>&quot;&quot;</code> for a signed-out one,
as <code>?1</code>: it is the query's first parameter, and each <code>?</code> after it takes the
next.</p>
</div></div></div>
</div></div>
</section>
</div>
</div>
</section>
</main><div class="toc">
<div><div class="usageContent">
<h3>Usage</h3><div class="markdown"><pre class="highlight"><code class="language-typescript">import * as mod from &quot;api/lib/playlist-members.ts&quot;;
</code><button class="copyButton" data-copy="import * as mod from &quot;api/lib/playlist-members.ts&quot;;
"><svg
class="copy"
width="15"
height="15"
viewBox="0 0 15 15"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<rect x="2" y="2" width="7" height="7" fill="none" />
<rect x="6" y="6" width="7" height="7" fill="none" />
<path
d="M1.55566 2.7C1.55566 2.03726 2.09292 1.5 2.75566 1.5H8.75566C9.41841 1.5 9.95566 2.03726 9.95566 2.7V5.1H12.3557C13.0184 5.1 13.5557 5.63726 13.5557 6.3V12.3C13.5557 12.9627 13.0184 13.5 12.3557 13.5H6.35566C5.69292 13.5 5.15566 12.9627 5.15566 12.3V9.9H2.75566C2.09292 9.9 1.55566 9.36274 1.55566 8.7V2.7ZM6.35566 9.9V12.3H12.3557V6.3H9.95566V8.7C9.95566 9.36274 9.41841 9.9 8.75566 9.9H6.35566ZM8.75566 8.7V2.7H2.75566V8.7H8.75566Z"
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</svg>
<svg
class="check"
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height="15"
viewBox="0 0 24 24"
stroke-width="2"
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fill="none"
stroke-linecap="round"
stroke-linejoin="round"
xmlns="http://www.w3.org/2000/svg"
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<path stroke="none" d="M0 0h24v24H0z" fill="none" />
<path d="M5 12l5 5l10 -10" />
</svg>
</button><code></code></pre>
</div></div><nav class="topSymbols">
<h3>Symbols</h3>
<ul><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;middleware&#x2F;auth.ts&#x2F;~&#x2F;AuthState.html" title="AuthState"><div class="docNodeKindIcon"><div class="text-Interface bg-Interface/15 dark:text-InterfaceDark dark:bg-InterfaceDark/15" title="Interface">I</div></div>
<span class="hover:bg-Interface/15 hover:bg-InterfaceDark/15">
AuthState
</span>
</a>
</li><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;middleware&#x2F;auth.ts&#x2F;~&#x2F;AuthContext.html" title="AuthContext"><div class="docNodeKindIcon"><div class="text-TypeAlias bg-TypeAlias/15 dark:text-TypeAliasDark dark:bg-TypeAliasDark/15" title="Type Alias">T</div></div>
<span class="hover:bg-TypeAlias/15 hover:bg-TypeAliasDark/15">
AuthContext
</span>
</a>
</li><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;middleware&#x2F;auth.ts&#x2F;~&#x2F;authMiddleware.html" title="authMiddleware"><div class="docNodeKindIcon"><div class="text-Function bg-Function/15 dark:text-FunctionDark dark:bg-FunctionDark/15" title="Function">f</div></div>
<span class="hover:bg-Function/15 hover:bg-FunctionDark/15">
authMiddleware
</span>
</a>
</li><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;middleware&#x2F;auth.ts&#x2F;~&#x2F;requirePermission.html" title="requirePermission"><div class="docNodeKindIcon"><div class="text-Function bg-Function/15 dark:text-FunctionDark dark:bg-FunctionDark/15" title="Function">f</div></div>
<span class="hover:bg-Function/15 hover:bg-FunctionDark/15">
requirePermission
</span>
</a>
</li><li>
<a href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;api&#x2F;middleware&#x2F;error.ts&#x2F;~&#x2F;errorMiddleware.html" title="errorMiddleware"><div class="docNodeKindIcon"><div class="text-Function bg-Function/15 dark:text-FunctionDark dark:bg-FunctionDark/15" title="Function">f</div></div>
<span class="hover:bg-Function/15 hover:bg-FunctionDark/15">
errorMiddleware
</span>
</a>
</li></ul><a class="flex items-center gap-0.5" href="..&#x2F;..&#x2F;..&#x2F;.&#x2F;all_symbols.html">
<span class="leading-none">view all 1307 symbols</span><svg
width="16"
height="16"
viewBox="0 0 16 16"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<path
fill-rule="evenodd"
clip-rule="evenodd"
d="M5.76748 11.8159C5.5378 11.577 5.54525 11.1972 5.78411 10.9675L8.93431 8L5.78411 5.0325C5.54525 4.80282 5.5378 4.423 5.76748 4.18413C5.99715 3.94527 6.37698 3.93782 6.61584 4.1675L10.2158 7.5675C10.3335 7.68062 10.4 7.83679 10.4 8C10.4 8.16321 10.3335 8.31938 10.2158 8.4325L6.61584 11.8325C6.37698 12.0622 5.99715 12.0547 5.76748 11.8159Z"
fill="currentColor"
/>
</svg>
</a></nav><nav class="documentNavigation">
<h3>Document Navigation</h3><ul><li><a href="#api/lib/playlist-members_ts_functions" title="Functions">Functions</a></li><li><ul><li><a href="#namespace_dumpfiguresfor" title="dumpFiguresFor">dumpFiguresFor</a></li><li><a href="#namespace_ismembervisibleto" title="isMemberVisibleTo">isMemberVisibleTo</a></li></ul></li><li><a href="#api/lib/playlist-members_ts_interfaces" title="Interfaces">Interfaces</a></li><li><ul><li><a href="#namespace_datedplaylistmember" title="DatedPlaylistMember">DatedPlaylistMember</a></li><li><a href="#namespace_playlistmember" title="PlaylistMember">PlaylistMember</a></li></ul></li><li><a href="#api/lib/playlist-members_ts_variables" title="Variables">Variables</a></li><li><ul><li><a href="#namespace_visible_dump_figures" title="VISIBLE_DUMP_FIGURES">VISIBLE_DUMP_FIGURES</a></li></ul></li></ul></nav></div>
</div></div>
</div>
</div>
</body>
</html>