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import { transliterate } from "transliteration";
/**
* User query type detected by pattern analysis
*/
export type QueryType = "email" | "username" | "name";
/**
* Pattern detection result
*/
export interface QueryPattern {
type: QueryType;
hasTransliteration: boolean;
originalQuery: string;
transliteratedQuery?: string;
}
/**
* Parameters for GitLab Users API
*/
export interface UserSearchParams {
username?: string;
public_email?: string;
search?: string;
active?: boolean;
humans?: boolean;
without_project_bots?: boolean;
[key: string]: unknown;
}
/**
* Search result with metadata
*/
export interface SmartSearchResult {
users: unknown[];
searchMetadata: {
query: string;
pattern: QueryPattern;
searchPhases: Array<{
phase: string;
params: UserSearchParams;
resultCount: number;
}>;
totalApiCalls: number;
};
}
/**
* Transliterate non-Latin text to Latin characters
*/
export function transliterateText(text: string): string {
return transliterate(text);
}
/**
* Detect if text contains non-Latin characters that would benefit from transliteration
*/
export function hasNonLatin(text: string): boolean {
// Check for any non-Latin characters (excluding common punctuation and numbers)
// eslint-disable-next-line no-control-regex
return /[^\u0000-\u007F\u0080-\u00FF]/.test(text);
}
/**
* Analyze query pattern to determine optimal search strategy
*/
export function analyzeQuery(query: string): QueryPattern {
const trimmedQuery = query.trim();
// Email pattern: basic validation for @domain format
if (/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(trimmedQuery)) {
return {
type: "email",
hasTransliteration: false,
originalQuery: trimmedQuery,
};
}
// Username pattern: 3-30 chars, basic chars with ._- (no spaces)
// Allow international characters but detect them for transliteration
if (trimmedQuery.length >= 3 && trimmedQuery.length <= 30 && !/\s/.test(trimmedQuery)) {
const hasTransliterationNeeded = hasNonLatin(trimmedQuery);
return {
type: "username",
hasTransliteration: hasTransliterationNeeded,
originalQuery: trimmedQuery,
transliteratedQuery: hasTransliterationNeeded ? transliterateText(trimmedQuery) : undefined,
};
}
// Name pattern: everything else (contains spaces, long text, or anything not matching username)
const hasTransliterationNeeded = hasNonLatin(trimmedQuery);
return {
type: "name",
hasTransliteration: hasTransliterationNeeded,
originalQuery: trimmedQuery,
transliteratedQuery: hasTransliterationNeeded ? transliterateText(trimmedQuery) : undefined,
};
}
/**
* Make GitLab Users API call with given parameters
*/
async function callUsersAPI(params: UserSearchParams): Promise<unknown[]> {
const queryParams = new URLSearchParams();
// Add common defaults for better results
const defaultParams = {
active: true,
humans: true,
...params,
};
Object.entries(defaultParams).forEach(([key, value]) => {
Eif (value !== undefined) {
queryParams.set(key, String(value));
}
});
const apiUrl = `${process.env.GITLAB_API_URL}/api/v4/users?${queryParams}`;
const response = await enhancedFetch(apiUrl, {
headers: {
Authorization: `Bearer ${process.env.GITLAB_TOKEN}`,
},
});
Iif (!response.ok) {
throw new Error(`GitLab API error: ${response.status} ${response.statusText}`);
}
const users = (await response.json()) as unknown;
return Array.isArray(users) ? (users as unknown[]) : [];
}
/**
* Smart user search with pattern detection and fallback strategies
*/
export async function smartUserSearch(
query: string,
additionalParams: Partial<UserSearchParams> = {}
): Promise<SmartSearchResult> {
const pattern = analyzeQuery(query);
const searchPhases: Array<{ phase: string; params: UserSearchParams; resultCount: number }> = [];
let users: unknown[] = [];
let totalApiCalls = 0;
// Phase 1: Targeted search based on detected pattern
let targetParams: UserSearchParams;
switch (pattern.type) {
case "email":
targetParams = { public_email: pattern.originalQuery, ...additionalParams };
break;
case "username":
targetParams = { username: pattern.originalQuery, ...additionalParams };
break;
case "name":
targetParams = { search: pattern.originalQuery, ...additionalParams };
break;
}
try {
users = await callUsersAPI(targetParams);
totalApiCalls++;
searchPhases.push({
phase: `targeted-${pattern.type}`,
params: targetParams,
resultCount: users.length,
});
// If we found users, return early
if (users.length > 0) {
return {
users,
searchMetadata: {
query,
pattern,
searchPhases,
totalApiCalls,
},
};
}
// Phase 2: Broad search fallback if targeted search returned empty
if (pattern.type !== "name") {
const broadParams = { search: pattern.originalQuery, ...additionalParams };
users = await callUsersAPI(broadParams);
totalApiCalls++;
searchPhases.push({
phase: "broad-search",
params: broadParams,
resultCount: users.length,
});
Eif (users.length > 0) {
return {
users,
searchMetadata: {
query,
pattern,
searchPhases,
totalApiCalls,
},
};
}
}
// Phase 3: Transliteration search if query has Cyrillic and no results yet
Eif (pattern.hasTransliteration && pattern.transliteratedQuery) {
const translitParams = { search: pattern.transliteratedQuery, ...additionalParams };
users = await callUsersAPI(translitParams);
totalApiCalls++;
searchPhases.push({
phase: "transliteration",
params: translitParams,
resultCount: users.length,
});
}
} catch (error) {
// Log error but don't fail completely - return empty result with metadata
console.error("Smart user search error:", error);
}
return {
users,
searchMetadata: {
query,
pattern,
searchPhases,
totalApiCalls,
},
};
}
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