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/* Country + language helpers used by the Reader Engagement view. |
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Country codes are ISO-3166 alpha-2; flag emoji is built from the regional |
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indicator code points so we never have to ship a flag-name dictionary. */ |
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|
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const REGIONAL_INDICATOR_A = 0x1F1E6; |
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|
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export function countryFlag( code ) { |
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if ( ! code || code.length !== 2 ) return "🏳"; |
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const a = code.toUpperCase().charCodeAt( 0 ) - 65; |
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const b = code.toUpperCase().charCodeAt( 1 ) - 65; |
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if ( a < 0 || a > 25 || b < 0 || b > 25 ) return "🏳"; |
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return String.fromCodePoint( REGIONAL_INDICATOR_A + a, REGIONAL_INDICATOR_A + b ); |
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} |
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/* Centroid approximations (lat/lng) for ~60 common analytics countries — enough |
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for the world-map bubble overlay. Codes outside this set fall back to a |
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nullable centroid (skipped on the map, still listed). */ |
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export const COUNTRY_DB = { |
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US: { name: "United States", lat: 38, lng: -97 }, |
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IN: { name: "India", lat: 22, lng: 78 }, |
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GB: { name: "United Kingdom", lat: 54, lng: -2 }, |
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DE: { name: "Germany", lat: 51, lng: 10 }, |
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BR: { name: "Brazil", lat: -14, lng: -51 }, |
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FR: { name: "France", lat: 46, lng: 2 }, |
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CA: { name: "Canada", lat: 56, lng: -106 }, |
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AU: { name: "Australia", lat: -25, lng: 133 }, |
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JP: { name: "Japan", lat: 36, lng: 138 }, |
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ES: { name: "Spain", lat: 40, lng: -3 }, |
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NL: { name: "Netherlands", lat: 52, lng: 5 }, |
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SG: { name: "Singapore", lat: 1.4, lng: 103.8 }, |
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IT: { name: "Italy", lat: 42, lng: 12 }, |
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SE: { name: "Sweden", lat: 60, lng: 18 }, |
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NO: { name: "Norway", lat: 61, lng: 8 }, |
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DK: { name: "Denmark", lat: 56, lng: 10 }, |
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FI: { name: "Finland", lat: 64, lng: 26 }, |
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PL: { name: "Poland", lat: 52, lng: 20 }, |
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IE: { name: "Ireland", lat: 53, lng: -8 }, |
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BE: { name: "Belgium", lat: 50.5, lng: 4.5 }, |
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CH: { name: "Switzerland", lat: 47, lng: 8 }, |
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AT: { name: "Austria", lat: 47.5, lng: 14 }, |
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PT: { name: "Portugal", lat: 39.5, lng: -8 }, |
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GR: { name: "Greece", lat: 39, lng: 22 }, |
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TR: { name: "Turkey", lat: 39, lng: 35 }, |
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RU: { name: "Russia", lat: 62, lng: 95 }, |
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UA: { name: "Ukraine", lat: 49, lng: 32 }, |
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CZ: { name: "Czechia", lat: 50, lng: 15 }, |
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RO: { name: "Romania", lat: 46, lng: 25 }, |
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HU: { name: "Hungary", lat: 47, lng: 19 }, |
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BG: { name: "Bulgaria", lat: 43, lng: 25 }, |
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ZA: { name: "South Africa", lat: -30, lng: 25 }, |
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NG: { name: "Nigeria", lat: 10, lng: 8 }, |
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EG: { name: "Egypt", lat: 26, lng: 30 }, |
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KE: { name: "Kenya", lat: -1, lng: 38 }, |
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MA: { name: "Morocco", lat: 32, lng: -7 }, |
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CN: { name: "China", lat: 35, lng: 105 }, |
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KR: { name: "South Korea", lat: 36, lng: 128 }, |
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TW: { name: "Taiwan", lat: 24, lng: 121 }, |
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HK: { name: "Hong Kong", lat: 22.3, lng: 114.2 }, |
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ID: { name: "Indonesia", lat: -2, lng: 118 }, |
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TH: { name: "Thailand", lat: 15, lng: 101 }, |
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VN: { name: "Vietnam", lat: 16, lng: 108 }, |
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MY: { name: "Malaysia", lat: 4, lng: 102 }, |
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PH: { name: "Philippines", lat: 13, lng: 122 }, |
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PK: { name: "Pakistan", lat: 30, lng: 70 }, |
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BD: { name: "Bangladesh", lat: 24, lng: 90 }, |
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LK: { name: "Sri Lanka", lat: 7, lng: 81 }, |
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IR: { name: "Iran", lat: 32, lng: 53 }, |
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IL: { name: "Israel", lat: 31, lng: 35 }, |
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AE: { name: "United Arab Emirates", lat: 24, lng: 54 }, |
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SA: { name: "Saudi Arabia", lat: 24, lng: 45 }, |
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MX: { name: "Mexico", lat: 23, lng: -102 }, |
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AR: { name: "Argentina", lat: -38, lng: -64 }, |
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CL: { name: "Chile", lat: -36, lng: -71 }, |
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CO: { name: "Colombia", lat: 4, lng: -72 }, |
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PE: { name: "Peru", lat: -10, lng: -75 }, |
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VE: { name: "Venezuela", lat: 7, lng: -66 }, |
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NZ: { name: "New Zealand", lat: -42, lng: 173 } |
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}; |
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export function countryName( code ) { |
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if ( ! code ) return ""; |
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const upper = code.toUpperCase(); |
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if ( COUNTRY_DB[ upper ] ) return COUNTRY_DB[ upper ].name; |
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// Browser fallback for codes outside our short table. |
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try { |
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const n = new Intl.DisplayNames( [ "en" ], { type: "region" } ).of( upper ); |
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return n && n !== upper ? n : upper; |
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} catch ( e ) { return upper; } |
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} |
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|
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/* Language full name + code label — "English (en)", "Deutsch (de)", etc. |
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Uses the browser's Intl.DisplayNames; falls back to a short list, then the |
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raw code so we always render something readable. */ |
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const LANG_FALLBACK = { |
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en: "English", es: "Spanish", fr: "French", de: "German", it: "Italian", |
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pt: "Portuguese", nl: "Dutch", sv: "Swedish", no: "Norwegian", da: "Danish", |
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fi: "Finnish", pl: "Polish", ru: "Russian", uk: "Ukrainian", cs: "Czech", |
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el: "Greek", tr: "Turkish", ar: "Arabic", he: "Hebrew", hi: "Hindi", |
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bn: "Bangla", ja: "Japanese", ko: "Korean", zh: "Chinese", id: "Indonesian", |
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th: "Thai", vi: "Vietnamese" |
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}; |
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|
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export function languageName( code ) { |
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if ( ! code ) return "—"; |
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const lower = String( code ).toLowerCase().replace( /[_].*$/, "" ).slice( 0, 5 ); |
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try { |
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const n = new Intl.DisplayNames( [ "en" ], { type: "language" } ).of( lower ); |
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if ( n && n.toLowerCase() !== lower ) return `${ n } (${ lower })`; |
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} catch ( e ) {} |
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const root = lower.split( "-" )[ 0 ]; |
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if ( LANG_FALLBACK[ root ] ) return `${ LANG_FALLBACK[ root ] } (${ lower })`; |
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return lower; |
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} |
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|
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/* Client-side CSV download — assemble + trigger via a transient blob URL. */ |
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export function downloadCsv( filename, rows ) { |
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if ( ! rows || ! rows.length ) return; |
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const esc = ( v ) => { |
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const s = String( v == null ? "" : v ); |
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return /[",\n]/.test( s ) ? `"${ s.replace( /"/g, '""' ) }"` : s; |
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}; |
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const csv = rows.map( ( r ) => r.map( esc ).join( "," ) ).join( "\n" ); |
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const blob = new Blob( [ csv ], { type: "text/csv;charset=utf-8" } ); |
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const url = URL.createObjectURL( blob ); |
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const a = document.createElement( "a" ); |
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a.href = url; a.download = filename; |
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document.body.appendChild( a ); a.click(); a.remove(); |
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setTimeout( () => URL.revokeObjectURL( url ), 1000 ); |
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} |
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