<?php
/**
 * This file is part of PHPPresentation - A pure PHP library for reading and writing
 * presentations documents.
 *
 * PHPPresentation is free software distributed under the terms of the GNU Lesser
 * General Public License version 3 as published by the Free Software Foundation.
 *
 * For the full copyright and license information, please read the LICENSE
 * file that was distributed with this source code. For the full list of
 * contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors.
 *
 * @see        https://github.com/PHPOffice/PHPPresentation
 *
 * @copyright   2009-2015 PHPPresentation contributors
 * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
 */

declare(strict_types=1);

namespace PhpOffice\PhpPresentation\Style;

use PhpOffice\PhpPresentation\ComparableInterface;

/**
 * \PhpOffice\PhpPresentation\Style\Font.
 */
class Font implements ComparableInterface
{
    /* Underline types */
    public const UNDERLINE_NONE = 'none';
    public const UNDERLINE_DASH = 'dash';
    public const UNDERLINE_DASHHEAVY = 'dashHeavy';
    public const UNDERLINE_DASHLONG = 'dashLong';
    public const UNDERLINE_DASHLONGHEAVY = 'dashLongHeavy';
    public const UNDERLINE_DOUBLE = 'dbl';
    public const UNDERLINE_DOTHASH = 'dotDash';
    public const UNDERLINE_DOTHASHHEAVY = 'dotDashHeavy';
    public const UNDERLINE_DOTDOTDASH = 'dotDotDash';
    public const UNDERLINE_DOTDOTDASHHEAVY = 'dotDotDashHeavy';
    public const UNDERLINE_DOTTED = 'dotted';
    public const UNDERLINE_DOTTEDHEAVY = 'dottedHeavy';
    public const UNDERLINE_HEAVY = 'heavy';
    public const UNDERLINE_SINGLE = 'sng';
    public const UNDERLINE_WAVY = 'wavy';
    public const UNDERLINE_WAVYDOUBLE = 'wavyDbl';
    public const UNDERLINE_WAVYHEAVY = 'wavyHeavy';
    public const UNDERLINE_WORDS = 'words';

    public const FORMAT_LATIN = 'latin';
    public const FORMAT_EAST_ASIAN = 'ea';
    public const FORMAT_COMPLEX_SCRIPT = 'cs';

    /**
     * Name.
     *
     * @var string
     */
    private $name = 'Calibri';

    /**
     * Font Size.
     *
     * @var int
     */
    private $size = 10;

    /**
     * Bold.
     *
     * @var bool
     */
    private $bold = false;

    /**
     * Italic.
     *
     * @var bool
     */
    private $italic = false;

    /**
     * Superscript.
     *
     * @var bool
     */
    private $superScript = false;

    /**
     * Subscript.
     *
     * @var bool
     */
    private $subScript = false;

    /**
     * Underline.
     *
     * @var string
     */
    private $underline = self::UNDERLINE_NONE;

    /**
     * Strikethrough.
     *
     * @var bool
     */
    private $strikethrough = false;

    /**
     * Foreground color.
     *
     * @var Color
     */
    private $color;

    /**
     * Character Spacing.
     *
     * @var float
     */
    private $characterSpacing = 0;

    /**
     * Format
     *
     * @var string
     */
    private $format = self::FORMAT_LATIN;

    /**
     * Hash index.
     *
     * @var int
     */
    private $hashIndex;

    public function __construct()
    {
        $this->color = new Color(Color::COLOR_BLACK);
    }

    /**
     * Get Name
     *
     * @return string
     */
    public function getName(): string
    {
        return $this->name;
    }

    /**
     * Set Name
     *
     * @param string $pValue
     *
     * @return self
     */
    public function setName(string $pValue = 'Calibri'): self
    {
        if ('' == $pValue) {
            $pValue = 'Calibri';
        }
        $this->name = $pValue;

        return $this;
    }

    /**
     * Get Character Spacing.
     *
     * @return float
     */
    public function getCharacterSpacing(): float
    {
        return $this->characterSpacing;
    }

    /**
     * Set Character Spacing
     * Value in pt.
     *
     * @param float $pValue
     *
     * @return self
     */
    public function setCharacterSpacing(float $pValue = 0): self
    {
        $this->characterSpacing = $pValue * 100;

        return $this;
    }

    /**
     * Get Size.
     */
    public function getSize(): int
    {
        return $this->size;
    }

    /**
     * Set Size.
     */
    public function setSize(int $pValue = 10): self
    {
        $this->size = $pValue;

        return $this;
    }

    /**
     * Get Bold.
     *
     * @return bool
     */
    public function isBold(): bool
    {
        return $this->bold;
    }

    /**
     * Set Bold.
     */
    public function setBold(bool $pValue = false): self
    {
        $this->bold = $pValue;

        return $this;
    }

    /**
     * Get Italic.
     *
     * @return bool
     */
    public function isItalic(): bool
    {
        return $this->italic;
    }

    /**
     * Set Italic.
     */
    public function setItalic(bool $pValue = false): self
    {
        $this->italic = $pValue;

        return $this;
    }

    /**
     * Get SuperScript.
     *
     * @return bool
     */
    public function isSuperScript(): bool
    {
        return $this->superScript;
    }

    /**
     * Set SuperScript.
     */
    public function setSuperScript(bool $pValue = false): self
    {
        $this->superScript = $pValue;

        // Set SubScript at false only if SuperScript is true
        if (true === $pValue) {
            $this->subScript = false;
        }

        return $this;
    }

    public function isSubScript(): bool
    {
        return $this->subScript;
    }

    public function setSubScript(bool $pValue = false): self
    {
        $this->subScript = $pValue;

        // Set SuperScript at false only if SubScript is true
        if (true === $pValue) {
            $this->superScript = false;
        }

        return $this;
    }

    /**
     * Get Underline.
     *
     * @return string
     */
    public function getUnderline(): string
    {
        return $this->underline;
    }

    /**
     * Set Underline.
     *
     * @param string $pValue Underline type
     *
     * @return self
     */
    public function setUnderline(string $pValue = self::UNDERLINE_NONE): self
    {
        if ('' == $pValue) {
            $pValue = self::UNDERLINE_NONE;
        }
        $this->underline = $pValue;

        return $this;
    }

    /**
     * Get Strikethrough.
     *
     * @return bool
     */
    public function isStrikethrough(): bool
    {
        return $this->strikethrough;
    }

    /**
     * Set Strikethrough.
     */
    public function setStrikethrough(bool $pValue = false): self
    {
        $this->strikethrough = $pValue;

        return $this;
    }

    /**
     * Get Color.
     */
    public function getColor(): Color
    {
        return $this->color;
    }

    /**
     * Set Color.
     */
    public function setColor(Color $pValue): self
    {
        $this->color = $pValue;

        return $this;
    }

    /**
     * Get format
     *
     * @return string
     */
    public function getFormat(): string
    {
        return $this->format;
    }

    /**
     * Set format
     *
     * @param string $value
     *
     * @return self
     */
    public function setFormat(string $value = self::FORMAT_LATIN): self
    {
        if (\in_array($value, [
            self::FORMAT_COMPLEX_SCRIPT,
            self::FORMAT_EAST_ASIAN,
            self::FORMAT_LATIN,
        ])) {
            $this->format = $value;
        }

        return $this;
    }

    /**
     * Get hash code.
     *
     * @return string Hash code
     */
    public function getHashCode(): string
    {
        return \md5(
            $this->name
            . $this->size
            . ($this->bold ? 't' : 'f')
            . ($this->italic ? 't' : 'f')
            . ($this->superScript ? 't' : 'f')
            . ($this->subScript ? 't' : 'f')
            . $this->underline
            . ($this->strikethrough ? 't' : 'f')
            . $this->format
            . $this->color->getHashCode()
            . __CLASS__
        );
    }

    /**
     * Get hash index.
     *
     * Note that this index may vary during script execution! Only reliable moment is
     * while doing a write of a workbook and when changes are not allowed.
     *
     * @return int|null Hash index
     */
    public function getHashIndex(): ?int
    {
        return $this->hashIndex;
    }

    /**
     * Set hash index.
     *
     * Note that this index may vary during script execution! Only reliable moment is
     * while doing a write of a workbook and when changes are not allowed.
     *
     * @param int $value Hash index
     *
     * @return $this
     */
    public function setHashIndex(int $value)
    {
        $this->hashIndex = $value;

        return $this;
    }
}