<?php

declare(strict_types=1);

namespace think\admin\builder\form\module;

use think\admin\builder\form\FormComponents;
use think\admin\builder\form\FormNode;

/**
 * 表单通用模块。
 * @class FormModules
 */
class FormModules
{
    /**
     * 标准表单栅格容器.
     */
    public static function grid(FormNode $parent, int $columns = 2, string|array $class = '', int $space = 15): FormNode
    {
        $columns = self::normalizeGridColumns($columns);
        $space = max(0, min(30, $space));
        $node = $parent->div()->class([
            'layui-row',
            "layui-col-space{$space}",
            'ta-form-grid',
            "ta-form-grid-{$columns}",
        ]);
        if ($class !== '' && $class !== []) {
            $node->class($class);
        }
        return $node;
    }

    /**
     * 标准表单栅格列.
     */
    public static function gridColumn(FormNode $parent, int $columns = 2, string|array $class = ''): FormNode
    {
        $columns = self::normalizeGridColumns($columns);
        $span = match ($columns) {
            1 => 12,
            2 => 6,
            3 => 4,
            default => 3,
        };

        $node = $parent->div()->class([
            "layui-col-xs{$span}",
            'ta-form-grid-col',
        ]);
        if ($class !== '' && $class !== []) {
            $node->class($class);
        }
        return $node;
    }

    /**
     * @param array<string, mixed> $config
     */
    public static function intro(FormNode $parent, array $config = []): FormNode
    {
        return FormComponents::intro()->config($config)->mount($parent);
    }

    /**
     * @param array<string, mixed> $config
     * @param callable(FormNode): void $callback
     */
    public static function section(FormNode $parent, array $config, callable $callback): FormNode
    {
        return FormComponents::section()->config($config)->body($callback)->mount($parent);
    }

    public static function note(FormNode $parent, string $text, string $class = 'help-block color-desc'): FormNode
    {
        return FormComponents::note($text)->class($class)->mount($parent);
    }

    /**
     * @param array<string, mixed> $config
     */
    public static function readonlyField(FormNode $parent, array $config = []): FormNode
    {
        return FormComponents::readonlyField()->config($config)->mount($parent);
    }

    /**
     * @param array<string, mixed> $config
     */
    public static function pickerField(FormNode $parent, array $config = []): FormNode
    {
        return FormComponents::pickerField()->config($config)->mount($parent);
    }

    /**
     * @param array<string, array<string, mixed>> $themes
     * @param array<string, mixed> $config
     */
    public static function themePalette(FormNode $parent, array $themes, string $current = '', array $config = []): FormNode
    {
        return FormComponents::themePalette($themes, $current)->config($config)->mount($parent);
    }

    /**
     * @param array<string, mixed> $theme
     */
    private static function themePreviewStyle(array $theme): string
    {
        $styles = [];
        foreach ([
            'theme-accent' => strval($theme['primary'] ?? ''),
            'theme-header' => strval($theme['header'] ?? ''),
            'theme-side' => strval($theme['side'] ?? ''),
            'theme-surface' => strval($theme['surface'] ?? ''),
            'theme-body' => strval($theme['body'] ?? ''),
        ] as $name => $value) {
            if ($value !== '') {
                $styles[] = '--' . $name . ':' . $value;
            }
        }
        return join(';', $styles);
    }

    private static function escape(string $content): string
    {
        return htmlentities($content, ENT_QUOTES, 'UTF-8');
    }

    private static function normalizeGridColumns(int $columns): int
    {
        return max(1, min(4, $columns));
    }
}