<?php

namespace TablePress\PhpOffice\PhpSpreadsheet\Style\NumberFormat\Wizard;

class Duration extends DateTimeWizard
{
	public const DAYS_DURATION = 'd';

	/**
	 * Hours as a duration (can exceed 24), e.g. 29.
	 */
	public const HOURS_DURATION = '[h]';

	/**
	 * Hours without a leading zero, e.g. 9.
	 */
	public const HOURS_SHORT = 'h';

	/**
	 * Hours with a leading zero, e.g. 09.
	 */
	public const HOURS_LONG = 'hh';

	/**
	 * Minutes as a duration (can exceed 60), e.g. 109.
	 */
	public const MINUTES_DURATION = '[m]';

	/**
	 * Minutes without a leading zero, e.g. 5.
	 */
	public const MINUTES_SHORT = 'm';

	/**
	 * Minutes with a leading zero, e.g. 05.
	 */
	public const MINUTES_LONG = 'mm';

	/**
	 * Seconds as a duration (can exceed 60), e.g. 129.
	 */
	public const SECONDS_DURATION = '[s]';

	/**
	 * Seconds without a leading zero, e.g. 2.
	 */
	public const SECONDS_SHORT = 's';

	/**
	 * Seconds with a leading zero, e.g. 02.
	 */
	public const SECONDS_LONG = 'ss';

	protected const DURATION_BLOCKS = [
		self::DAYS_DURATION,
		self::HOURS_DURATION,
		self::HOURS_LONG,
		self::HOURS_SHORT,
		self::MINUTES_DURATION,
		self::MINUTES_LONG,
		self::MINUTES_SHORT,
		self::SECONDS_DURATION,
		self::SECONDS_LONG,
		self::SECONDS_SHORT,
	];

	protected const DURATION_MASKS = [
		self::DAYS_DURATION => self::DAYS_DURATION,
		self::HOURS_DURATION => self::HOURS_SHORT,
		self::MINUTES_DURATION => self::MINUTES_LONG,
		self::SECONDS_DURATION => self::SECONDS_LONG,
	];

	protected const DURATION_DEFAULTS = [
		self::HOURS_LONG => self::HOURS_DURATION,
		self::HOURS_SHORT => self::HOURS_DURATION,
		self::MINUTES_LONG => self::MINUTES_DURATION,
		self::MINUTES_SHORT => self::MINUTES_DURATION,
		self::SECONDS_LONG => self::SECONDS_DURATION,
		self::SECONDS_SHORT => self::SECONDS_DURATION,
	];

	public const SEPARATOR_COLON = ':';
	public const SEPARATOR_SPACE_NONBREAKING = "\u{a0}";
	public const SEPARATOR_SPACE = ' ';

	public const DURATION_DEFAULT = [
		self::HOURS_DURATION,
		self::MINUTES_LONG,
		self::SECONDS_LONG,
	];

	/**
	 * @var string[]
	 */
	protected $separators;

	/**
	 * @var string[]
	 */
	protected $formatBlocks;

	/**
	 * @var bool
	 */
	protected $durationIsSet = false;

	/**
	 * @param null|string|string[] $separators
	 *        If you want to use the same separator for all format blocks, then it can be passed as a string literal;
	 *           if you wish to use different separators, then they should be passed as an array.
	 *        If you want to use only a single format block, then pass a null as the separator argument
	 */
	public function __construct($separators = self::SEPARATOR_COLON, string ...$formatBlocks)
	{
		$separators = $separators ?? self::SEPARATOR_COLON;
		$formatBlocks = (count($formatBlocks) === 0) ? self::DURATION_DEFAULT : $formatBlocks;

		$this->separators = $this->padSeparatorArray(
			is_array($separators) ? $separators : [$separators],
			count($formatBlocks) - 1
		);
		$this->formatBlocks = array_map([$this, 'mapFormatBlocks'], $formatBlocks);

		if ($this->durationIsSet === false) {
			// We need at least one duration mask, so if none has been set we change the first mask element
			//    to a duration.
			$this->formatBlocks[0] = self::DURATION_DEFAULTS[mb_strtolower($this->formatBlocks[0])];
		}
	}

	private function mapFormatBlocks(string $value): string
	{
		// Any duration masking codes are returned as lower case values
		if (in_array(mb_strtolower($value), self::DURATION_BLOCKS, true)) {
			if (array_key_exists(mb_strtolower($value), self::DURATION_MASKS)) {
				if ($this->durationIsSet) {
					// We should only have a single duration mask, the first defined in the mask set,
					//    so convert any additional duration masks to standard time masks.
					$value = self::DURATION_MASKS[mb_strtolower($value)];
				}
				$this->durationIsSet = true;
			}

			return mb_strtolower($value);
		}

		// Wrap any string literals in quotes, so that they're clearly defined as string literals
		return $this->wrapLiteral($value);
	}

	public function format(): string
	{
		return implode('', array_map([$this, 'intersperse'], $this->formatBlocks, $this->separators));
	}
}
