File size: 5,099 Bytes
bc575bc | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | import { fuzzyMatch } from "@earendil-works/pi-tui";
import type { SessionInfo } from "../../../core/session-manager.ts";
export type SortMode = "threaded" | "recent" | "relevance";
export type NameFilter = "all" | "named";
export interface ParsedSearchQuery {
mode: "tokens" | "regex";
tokens: { kind: "fuzzy" | "phrase"; value: string }[];
regex: RegExp | null;
/** If set, parsing failed and we should treat query as non-matching. */
error?: string;
}
export interface MatchResult {
matches: boolean;
/** Lower is better; only meaningful when matches === true */
score: number;
}
function normalizeWhitespaceLower(text: string): string {
return text.toLowerCase().replace(/\s+/g, " ").trim();
}
function getSessionSearchText(session: SessionInfo): string {
return `${session.id} ${session.name ?? ""} ${session.allMessagesText} ${session.cwd}`;
}
export function hasSessionName(session: SessionInfo): boolean {
return Boolean(session.name?.trim());
}
function matchesNameFilter(session: SessionInfo, filter: NameFilter): boolean {
if (filter === "all") return true;
return hasSessionName(session);
}
export function parseSearchQuery(query: string): ParsedSearchQuery {
const trimmed = query.trim();
if (!trimmed) {
return { mode: "tokens", tokens: [], regex: null };
}
// Regex mode: re:<pattern>
if (trimmed.startsWith("re:")) {
const pattern = trimmed.slice(3).trim();
if (!pattern) {
return { mode: "regex", tokens: [], regex: null, error: "Empty regex" };
}
try {
return { mode: "regex", tokens: [], regex: new RegExp(pattern, "i") };
} catch (err) {
const msg = err instanceof Error ? err.message : String(err);
return { mode: "regex", tokens: [], regex: null, error: msg };
}
}
// Token mode with quote support.
// Example: foo "node cve" bar
const tokens: { kind: "fuzzy" | "phrase"; value: string }[] = [];
let buf = "";
let inQuote = false;
let hadUnclosedQuote = false;
const flush = (kind: "fuzzy" | "phrase"): void => {
const v = buf.trim();
buf = "";
if (!v) return;
tokens.push({ kind, value: v });
};
for (let i = 0; i < trimmed.length; i++) {
const ch = trimmed[i]!;
if (ch === '"') {
if (inQuote) {
flush("phrase");
inQuote = false;
} else {
flush("fuzzy");
inQuote = true;
}
continue;
}
if (!inQuote && /\s/.test(ch)) {
flush("fuzzy");
continue;
}
buf += ch;
}
if (inQuote) {
hadUnclosedQuote = true;
}
// If quotes were unbalanced, fall back to plain whitespace tokenization.
if (hadUnclosedQuote) {
return {
mode: "tokens",
tokens: trimmed
.split(/\s+/)
.map((t) => t.trim())
.filter((t) => t.length > 0)
.map((t) => ({ kind: "fuzzy" as const, value: t })),
regex: null,
};
}
flush(inQuote ? "phrase" : "fuzzy");
return { mode: "tokens", tokens, regex: null };
}
export function matchSession(session: SessionInfo, parsed: ParsedSearchQuery): MatchResult {
const text = getSessionSearchText(session);
if (parsed.mode === "regex") {
if (!parsed.regex) {
return { matches: false, score: 0 };
}
const idx = text.search(parsed.regex);
if (idx < 0) return { matches: false, score: 0 };
return { matches: true, score: idx * 0.1 };
}
if (parsed.tokens.length === 0) {
return { matches: true, score: 0 };
}
let totalScore = 0;
let normalizedText: string | null = null;
for (const token of parsed.tokens) {
if (token.kind === "phrase") {
if (normalizedText === null) {
normalizedText = normalizeWhitespaceLower(text);
}
const phrase = normalizeWhitespaceLower(token.value);
if (!phrase) continue;
const idx = normalizedText.indexOf(phrase);
if (idx < 0) return { matches: false, score: 0 };
totalScore += idx * 0.1;
continue;
}
const m = fuzzyMatch(token.value, text);
if (!m.matches) return { matches: false, score: 0 };
totalScore += m.score;
}
return { matches: true, score: totalScore };
}
export function filterAndSortSessions(
sessions: SessionInfo[],
query: string,
sortMode: SortMode,
nameFilter: NameFilter = "all",
): SessionInfo[] {
const nameFiltered =
nameFilter === "all" ? sessions : sessions.filter((session) => matchesNameFilter(session, nameFilter));
const trimmed = query.trim();
if (!trimmed) return nameFiltered;
const parsed = parseSearchQuery(query);
if (parsed.error) return [];
// Recent mode: filter only, keep incoming order.
if (sortMode === "recent") {
const filtered: SessionInfo[] = [];
for (const s of nameFiltered) {
const res = matchSession(s, parsed);
if (res.matches) filtered.push(s);
}
return filtered;
}
// Relevance mode: sort by score, tie-break by modified desc.
const scored: { session: SessionInfo; score: number }[] = [];
for (const s of nameFiltered) {
const res = matchSession(s, parsed);
if (!res.matches) continue;
scored.push({ session: s, score: res.score });
}
scored.sort((a, b) => {
if (a.score !== b.score) return a.score - b.score;
return b.session.modified.getTime() - a.session.modified.getTime();
});
return scored.map((r) => r.session);
}
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