43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
export function buildGroupNicknameIdCandidates(values: Array<string | undefined | null>): string[] {
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const set = new Set<string>()
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for (const rawValue of values) {
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const raw = String(rawValue || '').trim()
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if (!raw) continue
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set.add(raw)
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}
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return Array.from(set)
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}
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export function normalizeGroupNicknameIdentity(value: string): string {
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return String(value || '').trim().toLowerCase()
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}
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export function normalizeGroupNickname(value: string): string {
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const trimmed = (value || '').trim()
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if (!trimmed) return ''
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const cleaned = trimmed.replace(/[\x00-\x1F\x7F]/g, '')
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if (!cleaned) return ''
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if (/^[,"'“”‘’，、]+$/.test(cleaned)) return ''
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return cleaned
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}
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export function resolveGroupNicknameByCandidates(groupNicknamesMap: Map<string, string>, candidates: Array<string | undefined | null>): string {
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const idCandidates = buildGroupNicknameIdCandidates(candidates)
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if (idCandidates.length === 0) return ''
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let resolved = ''
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for (const id of idCandidates) {
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const normalizedId = normalizeGroupNicknameIdentity(id)
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if (!normalizedId) continue
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const candidateNickname = normalizeGroupNickname(groupNicknamesMap.get(normalizedId) || '')
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if (!candidateNickname) continue
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if (!resolved) {
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resolved = candidateNickname
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continue
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}
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if (resolved !== candidateNickname) return ''
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}
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return resolved
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}
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