<?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:----PK64DXn55A6tm3E5PQMsGGCHBT1WOIjtN+5lCJyJ86N0i04UQvPSrAi7xG3TZDhjSSJkXT9ZM454yK0EVF/vOEYlD5iSYmy/D6vjuY1Yq9pynVn2zBb6RXsT9D5RtlHQSUDoWgMeKy/Hux2Dh8msa4VUM9V91D+FahVjjTcSXiapMgUHesPDCpf26RNqc+5FmAlWGyjTxbhX0HmoHoG30FbQmgygU2C/OyrSdv+rXZv7zOcwrbOJsUX8ts1Y/CezyVCd/OY3B2T+SLNWxvvGUJm0aHHmGmp9ENOMcj0oznM1w6CAfwxDHyxCK17LMxVwnM6MR6jJZM5mjuu3ehQ8rLbgmTL9s7BOhBaledfvZtfjM2eogx9dVRWrykMZuZqPOKQzp/ZC5Lvp7X57mCnnm62FS/tTOFDLRBicASt0gj84xlMP0HKegbeu3MkukU8bJOG4WwvSr/4tGPetP5I+wOnGjJ+nzn23kE7bLfeBEOJyTn+0lP1PGF3S/k0aKfVhWM6sGSb5ayt1S+8l8ZjzHGhRuCI1ZW1xEaL9XBdXYxQ2/CPPhqGIJ5uWNfCq5utqR/x5C1b62hBAjZ1kUpk3OCaBvRRJ0zlsz8RNxl5dSmCoUiJONrTaCOlF2LXWM1NDNjSmWjY8mu70/sN6jRqd7pwEVcfFz0sUbGrJg84i5G0=----ATTACHMENT:----MzYzNTkzMzY3MjQzMDYzMSA2MjQ4MjQwNjYyMTE0Njg5IDM5NzYzNDY5MTY5NzA4OTM=