<?php

declare(strict_types=1);

namespace App\Framework\Console\Layout;

use App\Framework\Console\ConsoleColor;
use App\Framework\Console\ConsoleFormat;
use App\Framework\Console\ConsoleStyle;
use App\Framework\Display\Themes\ConsoleTheme;

/**
 * Rendering engine for all layout types
 */
final readonly class LayoutRenderer
{
    public function __construct(
        private ConsoleTheme $theme
    ) {
    }

    /**
     * Render a box with borders
     */
    public function renderBox(string $content, int $width, bool $showBorders = true, string $title = ''): string
    {
        $lines = explode("\n", $content);
        $output = [];

        if ($showBorders) {
            // Top border
            if ($title !== '') {
                $titleWidth = mb_strlen($title);
                $availableSpace = $width - $titleWidth - 4; // Space for '[ ' and ' ]'
                $leftPadding = max(0, (int)floor($availableSpace / 2));
                $rightPadding = max(0, $availableSpace - $leftPadding);

                $topBorder = '┌' . str_repeat('─', $leftPadding) . '[ ' . $title . ' ]' . str_repeat('─', $rightPadding) . '┐';
                $output[] = $topBorder;
            } else {
                $output[] = '┌' . str_repeat('─', $width - 2) . '┐';
            }

            // Content lines
            foreach ($lines as $line) {
                $paddedLine = str_pad($line, $width - 4);
                $output[] = '│ ' . $paddedLine . ' │';
            }

            // Bottom border
            $output[] = '└' . str_repeat('─', $width - 2) . '┘';
        } else {
            $output = $lines;
        }

        return implode("\n", $output);
    }

    /**
     * Render a horizontal divider
     */
    public function renderDivider(int $width, ?string $label = null, bool $double = false): string
    {
        $char = $double ? '═' : '─';

        if ($label !== null) {
            $labelLength = mb_strlen($label);
            $availableSpace = $width - $labelLength - 4; // Space for ' ' on both sides
            $leftWidth = max(0, (int)floor($availableSpace / 2));
            $rightWidth = max(0, $availableSpace - $leftWidth);

            return str_repeat($char, $leftWidth) . ' ' . $label . ' ' . str_repeat($char, $rightWidth);
        }

        return str_repeat($char, $width);
    }

    /**
     * Render a header
     */
    public function renderHeader(string $title, ?string $subtitle = null, int $width = 80): string
    {
        $output = [];
        $titleStyle = ConsoleStyle::create(color: $this->theme->classNameColor, format: ConsoleFormat::BOLD);

        // Top border
        $output[] = '╔' . str_repeat('═', $width - 2) . '╗';

        // Title
        $titlePadded = str_pad($title, $width - 4);
        $output[] = '║ ' . $titleStyle->apply($titlePadded) . ' ║';

        // Subtitle (if provided)
        if ($subtitle !== null) {
            $subtitleStyle = ConsoleStyle::create(color: $this->theme->metadataColor);
            $subtitlePadded = str_pad($subtitle, $width - 4);
            $output[] = '║ ' . $subtitleStyle->apply($subtitlePadded) . ' ║';
        }

        // Bottom border
        $output[] = '╚' . str_repeat('═', $width - 2) . '╝';

        return implode("\n", $output);
    }

    /**
     * Render a footer
     */
    public function renderFooter(string $content, int $width = 80): string
    {
        $output = [];
        $footerStyle = ConsoleStyle::create(color: $this->theme->metadataColor);

        // Top border
        $output[] = '╔' . str_repeat('═', $width - 2) . '╗';

        // Content
        $contentPadded = str_pad($content, $width - 4);
        $output[] = '║ ' . $footerStyle->apply($contentPadded) . ' ║';

        // Bottom border
        $output[] = '╚' . str_repeat('═', $width - 2) . '╝';

        return implode("\n", $output);
    }

    /**
     * Apply ANSI formatting to text
     */
    public function applyStyle(string $text, ConsoleColor $color, ?ConsoleFormat $format = null): string
    {
        $style = ConsoleStyle::create(color: $color, format: $format);
        return $style->apply($text);
    }

    /**
     * Wrap text to fit width
     */
    public function wrapText(string $text, int $width): array
    {
        $lines = explode("\n", $text);
        $wrapped = [];

        foreach ($lines as $line) {
            if (mb_strlen($line) <= $width) {
                $wrapped[] = $line;
            } else {
                $wrapped = array_merge($wrapped, $this->splitLine($line, $width));
            }
        }

        return $wrapped;
    }

    private function splitLine(string $line, int $width): array
    {
        $words = explode(' ', $line);
        $currentLine = '';
        $result = [];

        foreach ($words as $word) {
            $testLine = empty($currentLine) ? $word : $currentLine . ' ' . $word;

            if (mb_strlen($testLine) <= $width) {
                $currentLine = $testLine;
            } else {
                if (!empty($currentLine)) {
                    $result[] = $currentLine;
                    $currentLine = $word;
                } else {
                    $result[] = mb_substr($word, 0, $width);
                    $currentLine = mb_substr($word, $width);
                }
            }
        }

        if (!empty($currentLine)) {
            $result[] = $currentLine;
        }

        return $result ?: [''];
    }
}