Rust implementation of NextGraph, a Decentralized and local-first web 3.0 ecosystem
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nextgraph-rs/ng-app/src/apps/SocialQueryDemo.svelte

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<!--
// Copyright (c) 2022-2025 Niko Bonnieure, Par le Peuple, NextGraph.org developers
// All rights reserved.
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE2 or http://www.apache.org/licenses/LICENSE-2.0>
// or the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
// at your option. All files in the project carrying such
// notice may not be copied, modified, or distributed except
// according to those terms.
-->
<script lang="ts">
import { onMount, tick, onDestroy } from "svelte";
import {
sparql_update,
toast_error,
toast_success,
active_session,
display_error,
online
} from "../store";
import ng from "../api";
import {
in_memory_discrete, open_viewer, set_viewer, set_editor, set_view_or_edit, cur_tab_doc_can_edit, cur_tab
} from "../tab";
import{ PencilSquare, Lifebuoy } from "svelte-heros-v2";
import { t } from "svelte-i18n";
import { Button, Progressbar, Spinner, Alert } from "flowbite-svelte";
import Highlight, { LineNumbers } from "svelte-highlight";
import hljs from "highlight.js";
import { definer } from "../turtle";
import "svelte-highlight/styles/github.css";
const language = {
name: "turtle",
register: (hljs) => {
return definer(hljs);
},
};
export let commits = {graph:[]};
let source = "";
$: source = commits.graph.join(" .\r\n") + (commits.graph.length ? " .":"");
const openQuery = async () => {
//TODO : return now if already processing (when LDO for svelte is ready)
// and even disable the button in that case
try {
await sparql_update("INSERT DATA { <> <did:ng:x:ng#social_query_sparql> \"CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }\".}");
let commit_id = commits.heads[0];
let commit_key = commits.head_keys[0];
let session = $active_session;
if (!session) return;
let request_nuri = "did:ng:"+$cur_tab.doc.nuri+":c:"+commit_id+":k:"+commit_key;
await ng.social_query_start(
session.session_id,
"did:ng:a",
request_nuri,
"did:ng:d:c",
2,
);
} catch (e) {
toast_error(display_error(e));
}
}
onMount(()=>{
console.log($active_session);
});
const info = () => {
}
</script>
<div class="flex-col">
<h1> Social Query</h1>
{#if !source}
<p class="p-3">{$t("doc.no_triples")}</p>
{/if}
<button
on:click={info}
on:keypress={info}
class="select-none ml-2 mt-2 mb-2 text-white bg-primary-700 hover:bg-primary-700/90 focus:ring-4 focus:ring-primary-500/50 rounded-lg text-base p-2 text-center inline-flex items-center dark:focus:ring-primary-700/55"
>
info
</button>
<Button
on:click={openQuery}
on:keypress={openQuery}
disabled={!$online}
class="select-none ml-2 mt-2 mb-2 text-white bg-primary-700 hover:bg-primary-700/90 focus:ring-4 focus:ring-primary-500/50 rounded-lg text-base p-2 text-center inline-flex items-center dark:focus:ring-primary-700/55"
>
<Lifebuoy tabindex="-1" class="mr-2 focus:outline-none" />
Start query
</Button>
{#if source}
<Highlight {language} code={source} class="mb-10" let:highlighted >
<LineNumbers {highlighted} wrapLines hideBorder />
</Highlight>
{/if}
</div>