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516import { useQuery } from "@tanstack/react-query";
import * as API from "aws-amplify/api";
import { useEffect, useRef, useState, ChangeEvent } from "react";
import { Link, useSearchParams } from "react-router-dom";
import * as Tooltip from "@radix-ui/react-tooltip";
import { Drawer } from "vaul-base";
import { FaClipboard, FaCode, FaTimes } from "react-icons/fa";
import { TbEye, TbEyeX } from "react-icons/tb";
import { PrismLight as SyntaxHighlighter } from "react-syntax-highlighter";
import jsx from "react-syntax-highlighter/dist/esm/languages/prism/jsx";
import { a11yDark as prism } from "react-syntax-highlighter/dist/esm/styles/prism";
import { StyledButton } from "./StyledButton";
import { StyledLabeledInput } from "./StyledLabeledInput";
import { SkeletonAuditHeader, SkeletonBlockersTable } from "./Skeleton";
import { useGlobalStore } from "../utils";
import { useScrollFade } from "#src/utils/useScrollFade.ts";
import { getAccessibilityStandardLabel } from "#src/utils/accessibilityStandardTags.ts";
import { useToggleIgnore } from "../hooks";
import style from "./BlockersRecommendations.module.scss";
SyntaxHighlighter.registerLanguage("jsx", jsx);
const PAGE_SIZE = 10;
const URLS_TO_SHOW_IN_TOOLTIP = 10;
const STANDARDS_TO_SHOW = 1;
interface RecommendationTag {
id: string;
content: string;
}
interface Recommendation {
id: string; // representative blocker id
short_id: string;
content_hash_id: string;
occurrences: number;
urlCount: number;
urls: string[]; // capped to 10 server-side; urlCount has the real total
ignored: boolean;
url: string;
type: string;
content: string;
message: string;
category: string;
tags: RecommendationTag[];
}
interface RecommendationsResp {
scan_date: string | null;
stats: {
totalBlockers: number;
uniqueBlockers: number;
activeUniqueBlockers: number;
repeatedBlockers: number;
pagesWithBlockers: number;
filteredUnique: number;
filteredRepeated: number;
filteredSingle: number;
filteredTotalOccurrences: number;
filteredRepeatedOccurrences: number;
};
items: Recommendation[];
pagination: {
page: number;
pageSize: number;
totalCount: number;
totalPages: number;
};
}
interface BlockersRecommendationsProps {
auditId: string;
isShared: boolean;
}
export const BlockersRecommendations = ({ auditId, isShared }: BlockersRecommendationsProps) => {
const { setAnnounceMessage, authenticated } = useGlobalStore();
const [searchParams] = useSearchParams();
const [scrollFadeRef, showScrollFade] = useScrollFade();
// Local (not URL) page state so it doesn't collide with the Detailed
// View's ?page= param when a user flips between tabs.
const [page, setPage] = useState(0);
const [status, setStatus] = useState<string>("active");
const [repeat, setRepeat] = useState<"all" | "repeated" | "single">("all");
useEffect(() => {
setPage(0);
}, [auditId]);
const toggleIgnoreMutation = useToggleIgnore(auditId);
const { data, isLoading, error } = useQuery({
queryKey: ["auditRecommendations", auditId, page, status, repeat],
queryFn: async () => {
const response = await API.get({
apiName: isShared ? "public" : "auth",
path: "/getAuditRecommendations",
options: {
queryParams: {
id: auditId,
page: page.toString(),
pageSize: PAGE_SIZE.toString(),
status,
repeat,
},
},
}).response;
return (await response.body.json()) as any as RecommendationsResp;
},
placeholderData: (previousData) => previousData,
});
// Announce pagination changes once the requested page has actually loaded.
const announcedPageRef = useRef(page);
useEffect(() => {
if (!data?.pagination) return;
if (announcedPageRef.current !== page) {
setAnnounceMessage(
`Showing ${data.items.length} of ${data.pagination.totalCount} recommendations, page ${page + 1} of ${data.pagination.totalPages}`,
"normal",
true
);
}
announcedPageRef.current = page;
}, [data]);
const handleStatusChange = (value: string) => {
setStatus(value);
setPage(0);
};
const handleRepeatChange = (value: "all" | "repeated" | "single") => {
setRepeat(value);
setPage(0);
};
const getCategoryBlockersLinkSearch = (category: string) => {
const params = new URLSearchParams(searchParams);
params.set("view", "detailed");
params.set("categories", category);
params.delete("page");
return params.toString();
};
const copyToClipboard = async (val: string) => {
try {
await navigator.clipboard.writeText(val);
setAnnounceMessage(`"${val}" copied to clipboard!`, "success");
} catch (err) {
console.error("Failed to copy: ", err);
}
};
const getElementTagFromContent = (content: string) => {
const parser = new DOMParser();
const nodeName = parser.parseFromString(content, "text/html").body?.firstChild?.nodeName.toLowerCase();
return nodeName && nodeName !== "#text" ? `<${nodeName}>` : undefined;
};
if (error) {
return (
<div className={style.BlockersRecommendations}>
<p>Error loading recommendations: {String(error)}</p>
</div>
);
}
if (isLoading || !data) {
return (
<div className={style.BlockersRecommendations}>
<SkeletonAuditHeader />
<SkeletonBlockersTable rows={5} />
</div>
);
}
// Default every stat so a backend that predates a field (e.g. mid-deploy)
// renders zeros instead of throwing inside render and blanking the page.
const stats = {
totalBlockers: data.stats?.totalBlockers ?? 0,
uniqueBlockers: data.stats?.uniqueBlockers ?? 0,
activeUniqueBlockers: data.stats?.activeUniqueBlockers ?? 0,
repeatedBlockers: data.stats?.repeatedBlockers ?? 0,
pagesWithBlockers: data.stats?.pagesWithBlockers ?? 0,
filteredUnique: data.stats?.filteredUnique ?? 0,
filteredRepeated: data.stats?.filteredRepeated ?? 0,
filteredSingle: data.stats?.filteredSingle ?? 0,
filteredTotalOccurrences: data.stats?.filteredTotalOccurrences ?? 0,
filteredRepeatedOccurrences: data.stats?.filteredRepeatedOccurrences ?? 0,
};
// "Fixing these clears 14% of your blockers" for the Repeated block
const repeatedPercent = stats.filteredTotalOccurrences > 0
? Math.round((stats.filteredRepeatedOccurrences / stats.filteredTotalOccurrences) * 100)
: 0;
const repeatedNote = stats.filteredRepeated > 0 && stats.filteredTotalOccurrences > 0
? <>Fixing these clears <strong>{repeatedPercent}%</strong> of your blockers.</>
: null;
const items = data.items ?? [];
const pagination = data.pagination ?? { page: 0, pageSize: PAGE_SIZE, totalCount: 0, totalPages: 0 };
const auditIdNoDash = auditId.replace(/-/g, "");
return (
<div className={style.BlockersRecommendations}>
{/* Stat blocks — these ARE the repeat filter */}
<div className={style["stat-blocks"]} role="group" aria-label="Filter recommendations by how often they repeat">
{([
{
key: "all",
count: stats.filteredUnique,
label: "Unique Blockers",
description: "Every distinct blocker, counted once, no matter how many pages it appears on.",
note: null,
},
{
key: "repeated",
count: stats.filteredRepeated,
label: "Repeated Blockers",
description: "Appear in more than one place. Fix the source once and every copy clears.",
note: repeatedNote,
},
{
key: "single",
count: stats.filteredSingle,
label: "One-off Blockers",
description: "Appear in a single place. Each one is its own fix.",
note: null,
},
] as const).map((block) => (
<button
key={block.key}
type="button"
className={style["stat-block"] + (repeat === block.key ? " " + style["selected"] : "")}
aria-pressed={repeat === block.key}
onClick={() => handleRepeatChange(block.key)}
>
<span className={style["stat-count"]}>{block.count.toLocaleString()}</span>
<span className={style["stat-label"]}>{block.label}</span>
<span className={style["stat-description"]}>{block.description}</span>
{block.note && <span className={style["stat-note"]}>{block.note}</span>}
</button>
))}
</div>
<p className={style["explainer"]}>
{stats.totalBlockers === 0 ? (
<>The latest scan found no blockers, so there is nothing to recommend yet.</>
) : stats.repeatedBlockers === 0 ? (
<>
The latest scan found <strong>{stats.totalBlockers.toLocaleString()}</strong> {stats.totalBlockers === 1 ? "blocker" : "blockers"} across{" "}
<strong>{stats.pagesWithBlockers.toLocaleString()}</strong> {stats.pagesWithBlockers === 1 ? "page" : "pages"}.
None of them repeat, so each one is its own fix.
</>
) : (
<>
The latest scan found <strong>{stats.totalBlockers.toLocaleString()}</strong> blockers across{" "}
<strong>{stats.pagesWithBlockers.toLocaleString()}</strong> {stats.pagesWithBlockers === 1 ? "page" : "pages"}.
Some of those are the same piece of code showing up in more than one place, so we grouped them.
That leaves <strong>{stats.uniqueBlockers.toLocaleString()}</strong> unique blockers to fix.
Fix those and all <strong>{stats.totalBlockers.toLocaleString()}</strong> go away.
The list below puts the fixes that clear the most blockers first.
Ignoring a blocker here ignores every copy of it.
</>
)}
</p>
{/* Status + result count */}
<div className={style["filters-row"]}>
<div className={style["filters"]}>
<StyledLabeledInput>
<label>Status</label>
<select
id="recommendationsStatus"
aria-label="Filter recommendations by status:"
value={status}
onChange={(e: ChangeEvent<HTMLSelectElement>) => handleStatusChange(e.target.value)}
>
<option value="active">Active</option>
<option value="ignored">Ignored</option>
<option value="all">All</option>
</select>
</StyledLabeledInput>
</div>
<div className={style["result-count"]} aria-live="polite">
{pagination.totalCount.toLocaleString()} {pagination.totalCount === 1 ? "recommendation" : "recommendations"}
</div>
</div>
{/* Table */}
<div className="table-container">
<div
className={"table-scroll-wrapper" + (showScrollFade ? " scroll-fade-active" : "")}
ref={scrollFadeRef}
tabIndex={0}
role="region"
aria-label="Recommendations table, scrollable horizontally"
>
<table aria-label="Recommendations table">
<thead>
<tr>
<th scope="col">Impact</th>
<th scope="col">Description</th>
<th scope="col">Code</th>
<th scope="col">Found on</th>
<th scope="col">ID</th>
<th scope="col">Ignore</th>
</tr>
</thead>
<tbody>
{items.length === 0 ? (
<tr>
<td colSpan={6} className={style["empty-table"]}>
{stats.totalBlockers === 0
? "No blockers found in the latest scan."
: "No recommendations match these filters."}
</td>
</tr>
) : (
items.map((item) => {
const standards = item.tags
.map((tag) => {
const label = getAccessibilityStandardLabel(tag.content);
return label ? { id: tag.id, label } : null;
})
.filter((tag): tag is { id: string; label: string } => tag !== null);
const elementTag = getElementTagFromContent(item.content);
const placesText = `${item.occurrences} ${item.occurrences === 1 ? "time" : "times"} across ${item.urlCount} ${item.urlCount === 1 ? "page" : "pages"}`;
return (
<tr key={item.content_hash_id}>
{/* Impact */}
<td className={style["impact-cell"]}>
<div className={style["impact"]}>
{item.occurrences > 1 ? (
<Tooltip.Provider>
<Tooltip.Root>
<Tooltip.Trigger
className={style["impact-chip"]}
aria-label={`This fix reaches ${placesText}`}
>
{`×${item.occurrences}`}
</Tooltip.Trigger>
<Tooltip.Portal>
<Tooltip.Content side="bottom" className="tooltip" collisionPadding={8}>
<div>
<p>{`Appears ${placesText}:`}</p>
<ul>
{item.urls.slice(0, URLS_TO_SHOW_IN_TOOLTIP).map((u) => (
<li key={u}>{u}</li>
))}
</ul>
{item.urlCount > URLS_TO_SHOW_IN_TOOLTIP && (
<p>{`+${item.urlCount - URLS_TO_SHOW_IN_TOOLTIP} more pages`}</p>
)}
</div>
<Tooltip.Arrow className="tooltip-arrow" />
</Tooltip.Content>
</Tooltip.Portal>
</Tooltip.Root>
</Tooltip.Provider>
) : (
<span className={`${style["impact-chip"]} ${style["single"]}`}>×1</span>
)}
<span className={style["impact-text"]}>
{item.urlCount === 1 ? "1 page" : `${item.urlCount} pages`}
</span>
</div>
</td>
{/* Description */}
<td className={style["description-cell"]}>
<div className={style["description"]}>
<div className={style["description-text"]}>{item.message}</div>
<div className={"tags " + style["tag-row"]}>
<Link
to={{ search: getCategoryBlockersLinkSearch(item.category) }}
className="tag"
aria-label={`View all ${item.category} blockers in Detailed View`}
>
{item.category}
</Link>
{standards.slice(0, STANDARDS_TO_SHOW).map((tag) => (
<span key={tag.id} className="tag">{tag.label}</span>
))}
{standards.length > STANDARDS_TO_SHOW && (
<Tooltip.Provider>
<Tooltip.Root>
<Tooltip.Trigger
className={style["tooltip-rondel"]}
aria-label={`${standards.length - STANDARDS_TO_SHOW} more accessibility standards`}
>
{`+${standards.length - STANDARDS_TO_SHOW}`}
</Tooltip.Trigger>
<Tooltip.Portal>
<Tooltip.Content side="bottom" className="tooltip" collisionPadding={8}>
<div className={"tags " + style["tag-row"]}>
{standards.slice(STANDARDS_TO_SHOW).map((tag) => (
<span key={tag.id} className="tag">{tag.label}</span>
))}
</div>
<Tooltip.Arrow className="tooltip-arrow" />
</Tooltip.Content>
</Tooltip.Portal>
</Tooltip.Root>
</Tooltip.Provider>
)}
</div>
</div>
</td>
{/* Code */}
<td className={style["code-cell"]}>
{elementTag && (
<div className={style["code-element"]}>
<span>Element:</span>
<code>{elementTag}</code>
</div>
)}
<Drawer.Root direction="right" shouldScaleBackground setBackgroundColorOnScale={false}>
<Drawer.Trigger className={style["view-code-button"]}>
<FaCode /> View Code
</Drawer.Trigger>
<Drawer.Portal>
<Drawer.Overlay className="drawer-overlay" />
<Drawer.Content className="drawer-content">
<div className="drawer-content-inner">
<div className="drawer-header">
<h4>Blocker Code</h4>
<Drawer.Close
render={(props) => (
<StyledButton onClick={props.onClick} label="Close" variant="light" icon={<FaTimes />} />
)}
/>
</div>
<SyntaxHighlighter style={prism} language={"jsx"} className="drawer-code">
{item.content}
</SyntaxHighlighter>
</div>
</Drawer.Content>
</Drawer.Portal>
</Drawer.Root>
</td>
{/* Found on */}
<td className={style["where-cell"]}>
<div className={style["where"]}>
<a href={item.url} target="_blank" rel="noopener noreferrer">{item.url}</a>
{item.urlCount > 1 && (
<span className={style["where-more"]}>
{`and ${item.urlCount - 1} other ${item.urlCount - 1 === 1 ? "page" : "pages"}`}
</span>
)}
</div>
</td>
{/* ID */}
<td className={style["id-td"]}>
<div className={style["id-cell"]}>
<Link to={"/shared/" + auditIdNoDash + "/" + item.short_id}>{item.short_id}</Link>
<StyledButton
onClick={() => copyToClipboard(item.short_id)}
icon={<FaClipboard className="icon-small" />}
label={item.short_id || "N/A"}
variant={"naked"}
showLabel={false}
/>
</div>
</td>
{/* Ignore */}
<td className={style["ignore-cell"]}>
<StyledButton
onClick={() => {
if (!authenticated) return;
toggleIgnoreMutation.mutate({
blockerId: item.id,
contentHashId: item.content_hash_id,
isCurrentlyIgnored: item.ignored,
});
setAnnounceMessage(
`Blocker ${item.short_id} and its ${item.occurrences - 1} ${item.occurrences - 1 === 1 ? "copy" : "copies"} set to ${item.ignored ? "Active" : "Ignored"}`,
"success"
);
}}
label={item.ignored ? "Ignored" : "Active"}
icon={item.ignored ? <TbEyeX className="icon-small" /> : <TbEye className="icon-small" />}
variant={item.ignored ? "toggle-ignored" : "toggle"}
/>
</td>
</tr>
);
})
)}
</tbody>
</table>
</div>
{/* Pagination */}
<div className="pagination" role="navigation" aria-label="Recommendations pagination">
<div className="pagination-text">
Showing {items.length} of {pagination.totalCount} recommendations
{pagination.totalPages > 0 && ` (Page ${page + 1} of ${pagination.totalPages})`}
</div>
<div className="pagination-buttons">
<div className="pagination-buttons-prev-next">
<StyledButton onClick={() => setPage(0)} disabled={page === 0} label="First" variant="light" className="pagination-edge" />
<StyledButton onClick={() => setPage((p) => Math.max(0, p - 1))} disabled={page === 0} label="Previous" variant="light" />
<StyledButton onClick={() => setPage((p) => p + 1)} disabled={page >= pagination.totalPages - 1} label="Next" variant="light" />
<StyledButton onClick={() => setPage(Math.max(0, pagination.totalPages - 1))} disabled={page >= pagination.totalPages - 1} label="Last" variant="light" className="pagination-edge" />
</div>
</div>
</div>
</div>
</div>
);
};