<?php

declare(strict_types=1);

namespace App;

final class View
{
    public static function e(?string $value): string
    {
        return htmlspecialchars((string) $value, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
    }

    public static function sourceLabel(string $source): string
    {
        return match ($source) {
            'youtube' => 'YouTube',
            'reddit' => 'Reddit',
            'rt' => 'RT',
            default => ucfirst($source),
        };
    }

    public static function sourceBadge(string $source): string
    {
        return match ($source) {
            'youtube' => 'text-bg-danger',
            'reddit' => 'text-bg-warning',
            'rt' => 'text-bg-dark',
            default => 'text-bg-secondary',
        };
    }

    public static function sourceColor(string $source): string
    {
        return match ($source) {
            'youtube' => '#ff3b5c',
            'reddit' => '#ff7a2f',
            'rt' => '#1fcb93',
            default => '#f1f3f7',
        };
    }

    public static function rangeLabel(string $range): string
    {
        return match ($range) {
            '1h' => '1 hour',
            '2h' => '2 hours',
            '6h' => '6 hours',
            '24h' => '24 hours',
            '7d' => '7 days',
            default => 'All time',
        };
    }

    public static function render(string $template, array $data = []): string
    {
        $path = dirname(__DIR__) . '/templates/' . $template . '.php';
        if (!is_file($path)) {
            throw new \RuntimeException(sprintf('Template "%s" not found.', $template));
        }

        extract($data, EXTR_SKIP);
        ob_start();
        include $path;

        return (string) ob_get_clean();
    }

    public static function timeAgo(?string $iso): string
    {
        if ($iso === null || $iso === '') {
            return '';
        }

        $timestamp = strtotime($iso);
        if ($timestamp === false) {
            return '';
        }

        $diff = time() - $timestamp;
        if ($diff < 60) {
            return 'just now';
        }

        $units = [
            31536000 => 'y',
            2592000 => 'mo',
            604800 => 'w',
            86400 => 'd',
            3600 => 'h',
            60 => 'm',
        ];

        foreach ($units as $seconds => $label) {
            if ($diff >= $seconds) {
                return floor($diff / $seconds) . $label . ' ago';
            }
        }

        return 'just now';
    }
}