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<?php |
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namespace jpmurray\LaravelCountdown; |
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use Exception; |
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use Carbon\Carbon; |
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use DateTimeInterface; |
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use Illuminate\Foundation\Application; |
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use jpmurray\LaravelCountdown\Exceptions\InvalidArgumentToCountdown; |
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use jpmurray\LaravelCountdown\Exceptions\InvalidDateFormatToCountdown; |
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class Countdown |
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{ |
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const WEEKS_PER_YEAR = 52; |
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const DAYS_PER_WEEK = 7; |
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const HOURS_PER_DAY = 24; |
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const MINUTES_PER_HOUR = 60; |
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const SECONDS_PER_MINUTE = 60; |
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const SECONDS_PER_HOUR = 3600; |
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const SECONDS_PER_DAY = 86400; |
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const SECONDS_PER_WEEK = 604800; |
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const SECONDS_PER_YEAR = 31449600; |
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private $from = null; |
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private $to = null; |
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private $delta; |
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public $years; |
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public $weeks; |
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public $days; |
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public $hours; |
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public $minutes; |
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public $seconds; |
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/** |
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* [__construct description] |
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* @param Carbon $carbon [description] |
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*/ |
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public function __construct(string $timezone, Carbon $carbon) |
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{ |
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$this->timezone = $timezone; |
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$this->carbon = $carbon->now($this->timezone); |
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} |
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/** |
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* Sets the time to count from |
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* |
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* @param string|integer|DateTime|Carbon $time |
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* |
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* @return self |
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*/ |
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public function from($time) : self |
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{ |
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$this->from = $this->asDateTime($time); |
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return $this; |
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} |
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/** |
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* Sets the time to count to |
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* |
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* @param string|integer|DateTime|Carbon $time |
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* |
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* @return self |
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*/ |
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public function to($time = null) : self |
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{ |
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$time ?: $this->carbon; |
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$this->to = $this->asDateTime($time); |
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return $this; |
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} |
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/** |
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* Returns the object containing the values for the countdown |
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* |
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* @return object |
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*/ |
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public function get() |
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{ |
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if (is_null($this->from)) { |
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$this->from = $this->carbon; |
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} |
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if (is_null($this->to)) { |
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$this->to = $this->carbon; |
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} |
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$this->delta = $this->from->diffInSeconds($this->to); |
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$this->computeYears() |
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->computeWeeks() |
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->computeDays() |
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->computeHours() |
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->computeMinutes() |
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->computeSeconds(); |
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return $this; |
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} |
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/** |
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* Return a timestamp as DateTime object. |
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* |
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* @param mixed $value |
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* |
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* @return \Carbon\Carbon |
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*/ |
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protected function asDateTime($value) |
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{ |
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try { |
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// If this value is already a Carbon instance, we shall just return it as is. |
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// This prevents us having to re-instantiate a Carbon instance when we know |
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// it already is one, which wouldn't be fulfilled by the DateTime check. |
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if ($value instanceof Carbon) { |
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return $value; |
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} |
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// If the value is already a DateTime instance, we will just skip the rest of |
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// these checks since they will be a waste of time, and hinder performance |
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// when checking the field. We will just return the DateTime right away. |
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if ($value instanceof DateTimeInterface) { |
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return $this->carbon->instance($value); |
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} |
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// If this value is an integer, we will assume it is a UNIX timestamp's value |
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// and format a Carbon object from this timestamp. This allows flexibility |
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// when defining your date fields as they might be UNIX timestamps here. |
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if (is_numeric($value)) { |
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return $this->carbon->createFromTimestamp($value); |
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} |
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// If the value is in simply year, month, day format |
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if (is_string($value) && $this->isStandardDateFormat($value)) { |
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return $this->carbon->createFromFormat('Y-m-d', $value)->startOfDay(); |
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} |
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// Finally |
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return $this->carbon->parse((string)$value); |
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} catch (Exception $e) { |
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throw new InvalidDateFormatToCountdown; |
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} |
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} |
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/** |
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* Determine if the given value is a standard date format. |
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* |
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* @param string $value |
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* |
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* @return bool |
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*/ |
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protected function isStandardDateFormat(string $value) : int |
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{ |
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return preg_match('/^(\d{4})-(\d{1,2})-(\d{1,2})$/', $value); |
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} |
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/** |
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* Compute the number of seconds for the countdown |
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* |
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* @return self |
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*/ |
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private function computeSeconds() : self |
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{ |
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$this->seconds = intval(bcmod(intval($this->delta), self::SECONDS_PER_MINUTE)); |
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return $this; |
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} |
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/** |
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* Compute the number of minutes for the countdown |
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* |
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* @return self |
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*/ |
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private function computeMinutes() : self |
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{ |
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$this->minutes = intval(bcmod((intval($this->delta) / self::SECONDS_PER_MINUTE), self::MINUTES_PER_HOUR)); |
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return $this; |
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} |
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/** |
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* Compute the number of hours for the countdown |
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* |
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* @return self |
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*/ |
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private function computeHours() : self |
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{ |
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$this->hours = intval(bcmod((intval($this->delta) / self::SECONDS_PER_HOUR), self::HOURS_PER_DAY)); |
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return $this; |
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} |
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/** |
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* Compute the number of days for the countdown |
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* |
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* @return self |
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*/ |
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private function computeDays() : self |
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{ |
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$this->days = intval(bcmod((intval($this->delta) / self::SECONDS_PER_DAY), self::DAYS_PER_WEEK)); |
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return $this; |
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} |
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/** |
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* Compute the number of weeks for the countdown |
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* |
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* @return self |
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*/ |
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private function computeWeeks() : self |
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{ |
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$this->weeks = intval(bcmod((intval($this->delta) / self::SECONDS_PER_WEEK), self::WEEKS_PER_YEAR)); |
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return $this; |
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} |
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/** |
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* Compute the number of years for the countdown |
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* |
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* @return self |
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*/ |
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private function computeYears() : self |
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{ |
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$this->years = intval(intval($this->delta) / self::SECONDS_PER_YEAR); |
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return $this; |
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} |
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} |
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