<?php

namespace Cog\SvgFont;

use Cog\Unicode\Character;
use Cog\Unicode\UnicodeString;

final class Font
{
    private const UNICODE_CODE_POINT_LINE_FEED = 10;

    /**
     * @param array<int, Glyph> $glyphMap
     */
    public function __construct(
        public readonly string $id,
        private readonly int $horizontalAdvance,
        private readonly FontFace $fontFace,
        private readonly MissingGlyph $missingGlyph,
        private readonly array $glyphMap = [],
    ) {
        if ($horizontalAdvance < 0) {
            throw new \InvalidArgumentException(
                "Font with id `$id` has negative horizontal advance",
            );
        }
    }

    public function computeStringWidth(UnicodeString $string, int $size, float $letterSpacing = 0.0): float
    {
        $maxLineWidth = $lineWidth = 0;

        $characterList = $string->characterList();

        foreach ($characterList as $character) {
            if ($character->toDecimal() === self::UNICODE_CODE_POINT_LINE_FEED) {
                $maxLineWidth = max($maxLineWidth, $lineWidth);
                $lineWidth = 0;
                continue;
            }

            $lineWidth += $this->computeCharacterWidth($character, $size, $letterSpacing);
        }

        return max($maxLineWidth, $lineWidth);
    }

    private function computeCharacterWidth(Character $character, int $size, float $letterSpacing = 0.0): float
    {
        $size = $size / $this->fontFace->unitsPerEm;

        $glyphHorizontalAdvance = $this->resolveGlyphHorizontalAdvance($character);

        $glyphWidth = $glyphHorizontalAdvance * $size;
        $letterSpacingWidth = $this->fontFace->unitsPerEm * $letterSpacing * $size;

        return $glyphWidth + $letterSpacingWidth;
    }

    private function resolveGlyphHorizontalAdvance(Character $character): int
    {
        return isset($this->glyphMap[strval($character)])
            ? $this->glyphMap[strval($character)]->horizontalAdvance ?? $this->horizontalAdvance
            : $this->missingGlyph->horizontalAdvance ?? $this->horizontalAdvance;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MjIyNDYxODMxMTYyMzY1OCA5NzQzNzk1NTc2NDE5NTQ1IDE1MTczNzY5ODU1ODE2MjE=