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* @file urlState.ts
* @description
* Tiny helpers to read/write query params for the analytics filters.
*
* @enterprise
* - Centralizes URL parsing/serialization so pages/components stay dumb.
* - Backward-compatible: accepts both `supplierId` (canonical) and `supplierid`.
* - Defensive: strips accidental surrounding quotes (e.g., `%22abc%22` → `abc`).
*/
/** Plain dict of URL params (undefined = absent) */
export type UrlDict = Record<string, string | undefined>;
/**
* Strips surrounding double quotes if present.
* Examples:
* - `"abc"` → `abc`
* - `abc` → `abc`
* - `""` → `undefined`
* @internal
*/
function dequote(v: string | null): string | undefined {
if (v == null) return undefined;
const trimmed = v.trim();
const unquoted = trimmed.replace(/^"+|"+$/g, '');
return unquoted.length ? unquoted : undefined;
}
/**
* Reads a subset of keys from the given search string into a plain object.
*
* @param search - The raw `location.search` string (may start with `?`).
* @param keys - Param names to read (e.g., `['from','to','supplierId']`).
* @returns - A dict with the requested keys (missing → `undefined`).
*
* @remarks
* - Special handling for `supplierId`: if absent, we also look for legacy
* lowercase `supplierid` and we strip accidental surrounding quotes.
*/
export function readParams(search: string, keys: string[]): UrlDict {
const sp = new URLSearchParams(search);
const out: UrlDict = {};
for (const k of keys) {
let raw = sp.get(k);
// Backward compatibility + robustness for supplierId
if ((raw == null || raw === '') && k === 'supplierId') {
raw = sp.get('supplierid');
}
// Strip accidental quotes for IDs (especially supplierId)
out[k] = k === 'supplierId' ? dequote(raw) : (raw ?? undefined);
}
return out;
}
/**
* Serializes a patch of params back into a search string.
*
* @param baseSearch - The existing `location.search` (preserved unless overwritten).
* @param patch - Key/value pairs to upsert (undefined/empty → removed).
* @returns - A `?key=value&...` string, or empty string when no params.
*
* @example
* writeParams('?from=2025-01-01', { supplierId: 'abc', to: '2025-02-01' })
* // → '?from=2025-01-01&supplierId=abc&to=2025-02-01'
*/
export function writeParams(baseSearch: string, patch: UrlDict): string {
const sp = new URLSearchParams(baseSearch);
// Apply the patch
Object.entries(patch).forEach(([k, v]) => {
const val = v?.trim?.() ?? v;
if (val === undefined || val === null || val === '') sp.delete(k);
else sp.set(k, val);
});
// Serialize back
const s = sp.toString();
return s ? `?${s}` : '';
}
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