From db818a8bc05bb00556c3970b6f0d0fc642fea50f Mon Sep 17 00:00:00 2001
From: Simon Hamp <simon.hamp@me.com>
Date: Thu, 18 Jul 2024 00:10:37 +0100
Subject: [PATCH] Add timezone support

---
 src/Support/Timezones.php | 344 ++++++++++++++++++++++++++++++++++++++
 src/System.php            |  14 ++
 2 files changed, 358 insertions(+)
 create mode 100644 src/Support/Timezones.php

diff --git a/src/Support/Timezones.php b/src/Support/Timezones.php
new file mode 100644
index 0000000..179c77d
--- /dev/null
+++ b/src/Support/Timezones.php
@@ -0,0 +1,344 @@
+<?php
+
+namespace Native\Laravel\Support;
+
+class Timezones
+{
+    private array $windows = [
+        'Dateline Standard Time' => 'Etc/GMT+12',
+        'UTC-11' => 'Etc/GMT+11',
+        'Aleutian Standard Time' => 'America/Adak',
+        'Hawaiian Standard Time' => 'Pacific/Honolulu',
+        'Marquesas Standard Time' => 'Pacific/Marquesas',
+        'Alaskan Standard Time' => 'America/Anchorage',
+        'UTC-09' => 'Etc/GMT+9',
+        'Pacific Standard Time (Mexico)' => 'America/Tijuana',
+        'UTC-08' => 'Etc/GMT+8',
+        'Pacific Standard Time' => 'America/Los_Angeles',
+        'US Mountain Standard Time' => 'America/Phoenix',
+        'Mountain Standard Time (Mexico)' => 'America/Chihuahua',
+        'Mountain Standard Time' => 'America/Denver',
+        'Yukon Standard Time' => 'America/Whitehorse',
+        'Central America Standard Time' => 'America/Guatemala',
+        'Central Standard Time' => 'America/Chicago',
+        'Easter Island Standard Time' => 'Pacific/Easter',
+        'Central Standard Time (Mexico)' => 'America/Mexico_City',
+        'Canada Central Standard Time' => 'America/Regina',
+        'SA Pacific Standard Time' => 'America/Bogota',
+        'Eastern Standard Time (Mexico)' => 'America/Cancun',
+        'Eastern Standard Time' => 'America/New_York',
+        'Haiti Standard Time' => 'America/Port-au-Prince',
+        'Cuba Standard Time' => 'America/Havana',
+        'US Eastern Standard Time' => 'America/Indianapolis',
+        'Turks And Caicos Standard Time' => 'America/Grand_Turk',
+        'Paraguay Standard Time' => 'America/Asuncion',
+        'Atlantic Standard Time' => 'America/Halifax',
+        'Venezuela Standard Time' => 'America/Caracas',
+        'Central Brazilian Standard Time' => 'America/Cuiaba',
+        'SA Western Standard Time' => 'America/La_Paz',
+        'Pacific SA Standard Time' => 'America/Santiago',
+        'Newfoundland Standard Time' => 'America/St_Johns',
+        'Tocantins Standard Time' => 'America/Araguaina',
+        'E. South America Standard Time' => 'America/Sao_Paulo',
+        'Argentina Standard Time' => 'America/Argentina/Buenos_Aires',
+        'Greenland Standard Time' => 'America/Godthab',
+        'Montevideo Standard Time' => 'America/Montevideo',
+        'Magallanes Standard Time' => 'America/Punta_Arenas',
+        'Saint Pierre Standard Time' => 'America/Miquelon',
+        'Bahia Standard Time' => 'America/Bahia',
+        'UTC-02' => 'Etc/GMT+2',
+        'Azores Standard Time' => 'Atlantic/Azores',
+        'Cape Verde Standard Time' => 'Atlantic/Cape_Verde',
+        'UTC' => 'Etc/UTC',
+        'GMT Standard Time' => 'Europe/London',
+        'Greenwich Standard Time' => 'Atlantic/Reykjavik',
+        'Sao Tome Standard Time' => 'Africa/Sao_Tome',
+        'Morocco Standard Time' => 'Africa/Casablanca',
+        'W. Europe Standard Time' => 'Europe/Berlin',
+        'Central Europe Standard Time' => 'Europe/Budapest',
+        'Romance Standard Time' => 'Europe/Paris',
+        'Central European Standard Time' => 'Europe/Warsaw',
+        'W. Central Africa Standard Time' => 'Africa/Lagos',
+        'Jordan Standard Time' => 'Asia/Amman',
+        'GTB Standard Time' => 'Europe/Bucharest',
+        'Middle East Standard Time' => 'Asia/Beirut',
+        'Egypt Standard Time' => 'Africa/Cairo',
+        'E. Europe Standard Time' => 'Europe/Chisinau',
+        'Syria Standard Time' => 'Asia/Damascus',
+        'West Bank Standard Time' => 'Asia/Hebron',
+        'South Africa Standard Time' => 'Africa/Johannesburg',
+        'FLE Standard Time' => 'Europe/Kiev',
+        'Israel Standard Time' => 'Asia/Jerusalem',
+        'Kaliningrad Standard Time' => 'Europe/Kaliningrad',
+        'Sudan Standard Time' => 'Africa/Khartoum',
+        'Libya Standard Time' => 'Africa/Tripoli',
+        'Namibia Standard Time' => 'Africa/Windhoek',
+        'Arabic Standard Time' => 'Asia/Baghdad',
+        'Turkey Standard Time' => 'Europe/Istanbul',
+        'Arab Standard Time' => 'Asia/Riyadh',
+        'Belarus Standard Time' => 'Europe/Minsk',
+        'Russian Standard Time' => 'Europe/Moscow',
+        'E. Africa Standard Time' => 'Africa/Nairobi',
+        'Iran Standard Time' => 'Asia/Tehran',
+        'Arabian Standard Time' => 'Asia/Dubai',
+        'Astrakhan Standard Time' => 'Europe/Astrakhan',
+        'Azerbaijan Standard Time' => 'Asia/Baku',
+        'Russia Time Zone 3' => 'Europe/Samara',
+        'Mauritius Standard Time' => 'Indian/Mauritius',
+        'Saratov Standard Time' => 'Europe/Saratov',
+        'Georgian Standard Time' => 'Asia/Tbilisi',
+        'Caucasus Standard Time' => 'Asia/Yerevan',
+        'Afghanistan Standard Time' => 'Asia/Kabul',
+        'West Asia Standard Time' => 'Asia/Tashkent',
+        'Ekaterinburg Standard Time' => 'Asia/Yekaterinburg',
+        'Pakistan Standard Time' => 'Asia/Karachi',
+        'India Standard Time' => 'Asia/Kolkata',
+        'Sri Lanka Standard Time' => 'Asia/Colombo',
+        'Nepal Standard Time' => 'Asia/Kathmandu',
+        'Central Asia Standard Time' => 'Asia/Almaty',
+        'Bangladesh Standard Time' => 'Asia/Dhaka',
+        'Omsk Standard Time' => 'Asia/Omsk',
+        'Myanmar Standard Time' => 'Asia/Yangon',
+        'SE Asia Standard Time' => 'Asia/Bangkok',
+        'Altai Standard Time' => 'Asia/Barnaul',
+        'W. Mongolia Standard Time' => 'Asia/Hovd',
+        'North Asia Standard Time' => 'Asia/Krasnoyarsk',
+        'N. Central Asia Standard Time' => 'Asia/Novosibirsk',
+        'Tomsk Standard Time' => 'Asia/Tomsk',
+        'China Standard Time' => 'Asia/Shanghai',
+        'North Asia East Standard Time' => 'Asia/Irkutsk',
+        'Singapore Standard Time' => 'Asia/Singapore',
+        'W. Australia Standard Time' => 'Australia/Perth',
+        'Taipei Standard Time' => 'Asia/Taipei',
+        'Ulaanbaatar Standard Time' => 'Asia/Ulaanbaatar',
+        'North Korea Standard Time' => 'Asia/Pyongyang',
+        'Aus Central W. Standard Time' => 'Australia/Eucla',
+        'Transbaikal Standard Time' => 'Asia/Chita',
+        'Tokyo Standard Time' => 'Asia/Tokyo',
+        'Korea Standard Time' => 'Asia/Seoul',
+        'Yakutsk Standard Time' => 'Asia/Yakutsk',
+        'Cen. Australia Standard Time' => 'Australia/Adelaide',
+        'AUS Central Standard Time' => 'Australia/Darwin',
+        'E. Australia Standard Time' => 'Australia/Brisbane',
+        'AUS Eastern Standard Time' => 'Australia/Sydney',
+        'West Pacific Standard Time' => 'Pacific/Port_Moresby',
+        'Tasmania Standard Time' => 'Australia/Hobart',
+        'Vladivostok Standard Time' => 'Asia/Vladivostok',
+        'Lord Howe Standard Time' => 'Australia/Lord_Howe',
+        'Bougainville Standard Time' => 'Pacific/Bougainville',
+        'Russia Time Zone 10' => 'Asia/Srednekolymsk',
+        'Magadan Standard Time' => 'Asia/Magadan',
+        'Norfolk Standard Time' => 'Pacific/Norfolk',
+        'Sakhalin Standard Time' => 'Asia/Sakhalin',
+        'Central Pacific Standard Time' => 'Pacific/Guadalcanal',
+        'Russia Time Zone 11' => 'Asia/Kamchatka',
+        'New Zealand Standard Time' => 'Pacific/Auckland',
+        'UTC+12' => 'Etc/GMT-12',
+        'Fiji Standard Time' => 'Pacific/Fiji',
+        'Kamchatka Standard Time' => 'Asia/Kamchatka',
+        'Chatham Islands Standard Time' => 'Pacific/Chatham',
+        'UTC+13' => 'Etc/GMT-13',
+        'Tonga Standard Time' => 'Pacific/Tongatapu',
+        'Samoa Standard Time' => 'Pacific/Apia',
+        'Line Islands Standard Time' => 'Pacific/Kiritimati',
+    ];
+
+    private array $nix = [
+        'ACDT' => 'Australia/Adelaide',
+        'ACST' => 'Australia/Darwin',
+        'ACT' => 'Australia/Darwin',
+        'ACWST' => 'Australia/Eucla',
+        'ADT' => 'America/Halifax',
+        'AEDT' => 'Australia/Sydney',
+        'AEST' => 'Australia/Brisbane',
+        'AET' => 'Australia/Sydney',
+        'AFT' => 'Asia/Kabul',
+        'AKDT' => 'America/Anchorage',
+        'AKST' => 'America/Anchorage',
+        'ALMT' => 'Asia/Almaty',
+        'AMST' => 'America/Campo_Grande',
+        'AMT' => 'America/Campo_Grande',
+        'ANAST' => 'Asia/Anadyr',
+        'ANAT' => 'Asia/Anadyr',
+        'AQTT' => 'Asia/Aqtau',
+        'ART' => 'America/Argentina/Buenos_Aires',
+        'AST' => 'America/Halifax',
+        'AWDT' => 'Australia/Perth',
+        'AWST' => 'Australia/Perth',
+        'AZOST' => 'Atlantic/Azores',
+        'AZOT' => 'Atlantic/Azores',
+        'AZST' => 'Asia/Baku',
+        'AZT' => 'Asia/Baku',
+        'BNT' => 'Asia/Brunei',
+        'BIOT' => 'Indian/Chagos',
+        'BIT' => 'Pacific/Pago_Pago',
+        'BOT' => 'America/La_Paz',
+        'BRST' => 'America/Sao_Paulo',
+        'BRT' => 'America/Sao_Paulo',
+        'BST' => 'Europe/London',
+        'BTT' => 'Asia/Thimphu',
+        'CAT' => 'Africa/Maputo',
+        'CCT' => 'Indian/Cocos',
+        'CDT' => 'America/Chicago',
+        'CEST' => 'Europe/Berlin',
+        'CET' => 'Europe/Berlin',
+        'CHADT' => 'Pacific/Chatham',
+        'CHAST' => 'Pacific/Chatham',
+        'CHOT' => 'Asia/Choibalsan',
+        'CHOST' => 'Asia/Choibalsan',
+        'CHST' => 'Pacific/Guam',
+        'CHUT' => 'Pacific/Chuuk',
+        'CIST' => 'Pacific/Rarotonga',
+        'CIT' => 'Asia/Makassar',
+        'CKT' => 'Pacific/Rarotonga',
+        'CLST' => 'America/Santiago',
+        'CLT' => 'America/Santiago',
+        'COST' => 'America/Bogota',
+        'COT' => 'America/Bogota',
+        'CST' => 'America/Chicago',
+        'CT' => 'America/Chicago',
+        'CVT' => 'Atlantic/Cape_Verde',
+        'CWST' => 'Australia/Eucla',
+        'CXT' => 'Indian/Christmas',
+        'DAVT' => 'Antarctica/Davis',
+        'DDUT' => 'Antarctica/DumontDUrville',
+        'DFT' => 'Europe/Paris',
+        'EASST' => 'Pacific/Easter',
+        'EAST' => 'Pacific/Easter',
+        'EAT' => 'Africa/Nairobi',
+        'ECT' => 'Europe/Paris',
+        'EDT' => 'America/New_York',
+        'EEST' => 'Europe/Istanbul',
+        'EET' => 'Europe/Istanbul',
+        'EGST' => 'Atlantic/Reykjavik',
+        'EGT' => 'Atlantic/Reykjavik',
+        'EST' => 'America/New_York',
+        'ET' => 'America/New_York',
+        'FET' => 'Europe/Kaliningrad',
+        'FJT' => 'Pacific/Fiji',
+        'FKST' => 'Atlantic/Stanley',
+        'FKT' => 'Atlantic/Stanley',
+        'FNT' => 'America/Noronha',
+        'GALT' => 'Pacific/Galapagos',
+        'GAMT' => 'Pacific/Gambier',
+        'GET' => 'Asia/Tbilisi',
+        'GFT' => 'America/Cayenne',
+        'GILT' => 'Pacific/Tarawa',
+        'GMT' => 'Atlantic/Reykjavik',
+        'GST' => 'Asia/Dubai',
+        'GYT' => 'America/Guyana',
+        'HDT' => 'Pacific/Honolulu',
+        'HAEC' => 'Europe/Paris',
+        'HST' => 'Pacific/Honolulu',
+        'HKT' => 'Asia/Hong_Kong',
+        'HMT' => 'Asia/Kolkata',
+        'HOVT' => 'Asia/Hovd',
+        'ICT' => 'Asia/Bangkok',
+        'IDLW' => 'Pacific/Wake',
+        'IDT' => 'Asia/Jerusalem',
+        'IOT' => 'Indian/Chagos',
+        'IRDT' => 'Asia/Tehran',
+        'IRKT' => 'Asia/Irkutsk',
+        'IRST' => 'Asia/Tehran',
+        'IST' => 'Asia/Kolkata',
+        'JST' => 'Asia/Tokyo',
+        'KALT' => 'Europe/Kaliningrad',
+        'KGT' => 'Asia/Bishkek',
+        'KOST' => 'Pacific/Kosrae',
+        'KRAT' => 'Asia/Krasnoyarsk',
+        'KST' => 'Asia/Seoul',
+        'LHDT' => 'Australia/Lord_Howe',
+        'LINT' => 'Pacific/Kiritimati',
+        'MAGT' => 'Asia/Magadan',
+        'MART' => 'Pacific/Marquesas',
+        'MAWT' => 'Antarctica/Mawson',
+        'MDT' => 'America/Denver',
+        'MET' => 'Europe/Berlin',
+        'MEST' => 'Europe/Berlin',
+        'MHT' => 'Pacific/Kwajalein',
+        'MIST' => 'Antarctica/Macquarie',
+        'MIT' => 'Pacific/Apia',
+        'MMT' => 'Asia/Yangon',
+        'MSK' => 'Europe/Moscow',
+        'MST' => 'America/Denver',
+        'MUT' => 'Indian/Mauritius',
+        'MVT' => 'Indian/Maldives',
+        'MYT' => 'Asia/Kuala_Lumpur',
+        'NCT' => 'Pacific/Noumea',
+        'NDT' => 'America/St_Johns',
+        'NFT' => 'Pacific/Norfolk',
+        'NPT' => 'Asia/Kathmandu',
+        'NST' => 'America/St_Johns',
+        'NT' => 'America/St_Johns',
+        'NUT' => 'Pacific/Niue',
+        'NZDT' => 'Pacific/Auckland',
+        'NZST' => 'Pacific/Auckland',
+        'OMST' => 'Asia/Omsk',
+        'ORAT' => 'Asia/Oral',
+        'PDT' => 'America/Los_Angeles',
+        'PETT' => 'Asia/Kamchatka',
+        'PHOT' => 'Pacific/Enderbury',
+        'PHST' => 'Asia/Manila',
+        'PKT' => 'Asia/Karachi',
+        'PMDT' => 'America/Miquelon',
+        'PMST' => 'America/Miquelon',
+        'PONT' => 'Pacific/Pohnpei',
+        'PST' => 'America/Los_Angeles',
+        'PT' => 'America/Los_Angeles',
+        'PYST' => 'America/Asuncion',
+        'PYT' => 'America/Asuncion',
+        'RET' => 'Indian/Reunion',
+        'ROTT' => 'Antarctica/Rothera',
+        'SAKT' => 'Asia/Sakhalin',
+        'SAMT' => 'Europe/Samara',
+        'SAST' => 'Africa/Johannesburg',
+        'SBT' => 'Pacific/Guadalcanal',
+        'SCT' => 'Indian/Mahe',
+        'SGT' => 'Asia/Singapore',
+        'SLST' => 'Asia/Colombo',
+        'SRET' => 'Asia/Srednekolymsk',
+        'SRT' => 'America/Paramaribo',
+        'SST' => 'Pacific/Apia',
+        'SYOT' => 'Antarctica/Syowa',
+        'TAHT' => 'Pacific/Tahiti',
+        'THA' => 'Asia/Bangkok',
+        'TFT' => 'Indian/Kerguelen',
+        'TJT' => 'Asia/Dushanbe',
+        'TKT' => 'Pacific/Fakaofo',
+        'TLT' => 'Asia/Dili',
+        'TMT' => 'Asia/Ashgabat',
+        'TOT' => 'Pacific/Tongatapu',
+        'TVT' => 'Pacific/Funafuti',
+        'ULAST' => 'Asia/Ulaanbaatar',
+        'ULAT' => 'Asia/Ulaanbaatar',
+        'UYST' => 'America/Montevideo',
+        'UYT' => 'America/Montevideo',
+        'UZT' => 'Asia/Tashkent',
+        'VET' => 'America/Caracas',
+        'VLAT' => 'Asia/Vladivostok',
+        'VOLT' => 'Europe/Volgograd',
+        'VOST' => 'Antarctica/Vostok',
+        'VUT' => 'Pacific/Efate',
+        'WAKT' => 'Pacific/Wake',
+        'WAST' => 'Africa/Windhoek',
+        'WAT' => 'Africa/Lagos',
+        'WEST' => 'Europe/Lisbon',
+        'WET' => 'Europe/Lisbon',
+        'WIT' => 'Asia/Jayapura',
+        'WGST' => 'America/Godthab',
+        'WGT' => 'America/Godthab',
+        'WST' => 'Australia/Perth',
+        'YAKT' => 'Asia/Yakutsk',
+        'YEKT' => 'Asia/Yekaterinburg',
+    ];
+
+    public function translateFromWindowsString(string $source): string
+    {
+        return $this->windows[$source] ?? 'UTC';
+    }
+
+    public function translateFromAbbreviatedString(string $source): string
+    {
+        return $this->nix[$source] ?? 'UTC';
+    }
+}
diff --git a/src/System.php b/src/System.php
index 65a2c0c..ba0f6ae 100644
--- a/src/System.php
+++ b/src/System.php
@@ -4,6 +4,7 @@
 
 use Native\Laravel\Client\Client;
 use Native\Laravel\DataObjects\Printer;
+use Native\Laravel\Support\Timezones;
 
 class System
 {
@@ -56,4 +57,17 @@ public function printToPDF(string $html): string
             'html' => $html,
         ])->json('result');
     }
+
+    public function timezone(): string
+    {
+        $timezones = new Timezones();
+
+        if (PHP_OS_FAMILY === 'Windows') {
+            $timezone = $timezones->translateFromWindowsString(exec('tzutil /g'));
+        } else {
+            $timezone = $timezones->translateFromAbbreviatedString(exec('date +%Z'));
+        }
+
+        return $timezone;
+    }
 }