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/** |
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* Phone helpers for admin displays. Reads the localized `window.yatraPhoneData` |
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* (countries + dial-code priority + flag base URL) to turn a stored |
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* "+<code><number>" value into a flag + readable number. Mirrors the server-side |
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* FormatHelper detection so front and back agree. |
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* |
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* A value with no leading "+" (a legacy national-only number) is returned as-is |
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* with no flag — never reinterpreted. |
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*/ |
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|
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export interface PhoneCountry { |
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iso: string; |
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name: string; |
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dial: string; |
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} |
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|
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interface PhoneData { |
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countries?: PhoneCountry[]; |
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priority?: Record<string, string>; |
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flagBase?: string; |
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} |
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|
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function phoneData(): PhoneData { |
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return ( |
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(window as unknown as { yatraPhoneData?: PhoneData }).yatraPhoneData || {} |
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); |
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} |
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|
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export interface DetectedPhone { |
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iso: string; |
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dial: string; |
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national: string; |
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} |
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|
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/** Detect country from a value beginning with "+". Longest-prefix match, then priority tiebreak. */ |
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export function detectPhoneCountry(raw: string): DetectedPhone | null { |
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raw = (raw || "").trim(); |
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if (!raw || raw.charAt(0) !== "+") return null; |
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const digits = raw.replace(/\D+/g, ""); |
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if (!digits) return null; |
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const countries = phoneData().countries || []; |
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const priority = phoneData().priority || {}; |
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for (let len = Math.min(4, digits.length); len >= 1; len--) { |
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const prefix = digits.slice(0, len); |
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const matches = countries.filter((c) => c.dial === prefix); |
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if (matches.length) { |
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const iso = priority[prefix] || matches[0].iso; |
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return { iso, dial: prefix, national: digits.slice(len) }; |
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} |
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} |
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return null; |
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} |
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|
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/** URL of a country's flag SVG, or "" if the flag base isn't localized. */ |
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export function flagUrl(iso: string): string { |
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const base = phoneData().flagBase || ""; |
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return base ? `${base}${String(iso).toLowerCase()}.svg` : ""; |
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} |
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|
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/** Human-readable form: "+977 9806015400" for international, unchanged for legacy. */ |
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export function formatPhone(raw: string): string { |
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const d = detectPhoneCountry(raw); |
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if (!d) return raw; |
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return `+${d.dial}${d.national ? " " + d.national : ""}`; |
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} |
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|
