<?php

/** @var string $selector */
/** @var array $settings */
/** @var nc_tpl_asset_collector $assets */

$nc_core = nc_core::get_object();
$css = array();

$modifications = array(
    '-smallest' => 0.7,
    '-smaller' => 0.8,
    '-small' => 0.9,
    '-big' => 1.2,
    '-bigger' => 1.4,
    '-biggest' => 1.6,
);

$add_rule = function(&$rules, $text_type_selector, $settings, $key, $dont_scale = false) use ($modifications) {
    if (!isset($settings[$key]) || !strlen($settings[$key])) {
        return;
    }
    $css_property = strtr($key, '_', '-');
    $value = $settings[$key];
    $unit = isset($settings[$key . '_unit']) ? $settings[$key . '_unit'] : '';
    $rules[$text_type_selector][] = "$css_property:$value$unit;";
    foreach ($modifications as $modification_suffix => $modification_scale) {
        if ($dont_scale === true || (is_array($dont_scale) && in_array($unit, $dont_scale, true)) || !is_numeric($value)) {
            $scaled_value = $value;
        } else {
            $scaled_value = str_replace(',', '.', round($value * $modification_scale, 2));
        }
        $rules[$text_type_selector . $modification_suffix][] = "$css_property:$scaled_value$unit;";
    }
};


foreach ($settings as $text_type => $text_type_settings) {
    $text_type_selector = '.tpl-text-' . strtr($text_type, '_', '-');
    $text_type_rules = array();
    // font-family
    if (!empty($text_type_settings['font_family'])) {
        if (!empty($text_type_settings['asset'])) {
            $assets->require_asset($text_type_settings['asset']);
        }
        $font_family = '"' . $text_type_settings['font_family'] . '"';
        if (!empty($text_type_settings['font_family_fallback'])) {
            $font_family .= ',' . $text_type_settings['font_family_fallback'];
        }
        $text_type_rules[$text_type_selector][] = "font-family:$font_family;";
        foreach ($modifications as $modification_suffix => $modification_scale) {
            $text_type_rules[$text_type_selector . $modification_suffix][] = "font-family:$font_family;";
        }
    }

    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'font_size');
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'font_weight', true);
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'font_style');
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'margin_top');
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'margin_bottom');
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'line_height', array('', '%'));
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'letter_spacing');
    $add_rule($text_type_rules, $text_type_selector, $text_type_settings, 'text_transform');

    $has_paragraph_settings = !empty($text_type_settings['children']['p']);

    if ($text_type_rules) {
        foreach ($text_type_rules as $text_type_rule_selector => $rules) {
            $full_selector = "$selector $text_type_rule_selector";
            // Дефолтные стили для текста и заголовков
            if ($text_type_rule_selector === $text_type_selector) {
                if ($text_type === 'default') {
                    $full_selector .= ", $selector";
                } else if (preg_match('/^header(\d+)$/', $text_type, $matches)) {
                    $full_selector .= ", $selector h$matches[1]";
                }
            }
            // Дополнительный класс tpl-text-TYPE[-size]-paragraph со свойствами шрифта + отступами
            if ($has_paragraph_settings) {
                $full_selector .= ", $selector $text_type_rule_selector-paragraph";
            }
            $css[] = "$full_selector {" . join('', $rules) . "}";
        }
    }

    if ($has_paragraph_settings) {
        $child_settings = $text_type_settings['children']['p'];
        $child_properties = array();
        $add_rule($child_properties, $text_type_selector, $child_settings, 'margin_top');
        $add_rule($child_properties, $text_type_selector, $child_settings, 'margin_bottom');
        $add_rule($child_properties, $text_type_selector, $child_settings, 'text_indent');
        if ($child_properties) {
            foreach ($child_properties as $child_selector => $rules) {
                $full_selector = "$selector $child_selector p, $selector $child_selector-paragraph";
                if ($text_type === 'default' && $child_selector === $text_type_selector) {
                    $full_selector .= ", $selector p";
                }
                $css[] = "$full_selector {" . join('', $rules) . "}";
            }
        }
    }
}

return join("\n", $css);