<?php
declare (strict_types = 1);

namespace app\admin\controller\v1;

use app\admin\model\v1\SysConfigGroupModel;
use app\admin\model\v1\SysConfigModel;

/**
 * 站酷配置控制器
 */
class SiteConfig
{
    // 获取配置项
    public function index()
    {
        // 按语言获取分组
        $groups = SysConfigGroupModel::field([
                'id',
                'name'
            ])
            ->language(request()->lang_id)
            ->enabled()
            ->order(['sort' => 'asc', 'id' => 'desc'])
            ->select()
            ->toArray();
        if (empty($groups)) {
            return error('配置分组不存在');
        }

        // 根据分组获取配置项
        $configs = SysConfigModel::field([
                'id',
                'group_id',
                'title',
                'name',
                'value',
                'extra',
                'type',
                'remark'
            ])
            ->groupId(array_column($groups, 'id'))
            ->order(['sort' => 'asc', 'id' => 'desc'])
            ->select()
            ->each(function($item) {
                // 修改字段为null的输出为空字符串
                $keys = array_keys($item->toArray());
                foreach ($keys as $key) {
                    if (is_null($item[$key])) {
                        $item[$key] = '';
                    }
                }
                return $item;
            })
            ->toArray();
        if (empty($configs)) {
            return error('配置项不存在');
        }

        // 处理附加配置项及联动项
        $config_name_map = [];
        foreach ($configs as $config) {
            unset($config['group_id']);
            $config_name_map[$config['name']] = $config;
        }
        $configs = $this->handleExtra($configs, $config_name_map);

        // 组合数据
        $config_group_map = [];
        foreach ($configs as $config) {
            $group_id = $config['group_id'];
            unset($config['group_id']);
            $config_group_map[$group_id][] = $config;
        }

        // 组合分组和配置项
        foreach ($groups as &$group) {
            $group['configs'] = $config_group_map[$group['id']] ?? [];
        }
        unset($group);

        return success('获取成功', $groups);
    }
    // 处理配置联动项数据
    private function handleExtra($data, $map)
    {
        $ret = [];
        $need_delete_names = [];
        foreach ($data as $val) {
            if (!empty($val['extra'])) {
                $extra = explode(PHP_EOL, $val['extra']);
                foreach ($extra as $v) {
                    if (preg_match('/^([^:]+):(.+)\[(.+)\]$/i', $v, $match)) {
                        $item = [
                            'name'  => $match[2],
                            'value' => $match[1]
                        ];
                        if (isset($match[3])) {
                            $children = [];
                            $names    = explode(',', $match[3]);
                            foreach ($names as $name) {
                                $name = trim(trim($name), "'");
                                $need_delete_names[] = $name;
                                if (!empty($map[$name])) {
                                    $children[] = $map[$name];
                                }
                            }
                            // 处理子级
                            if (!empty($children)) {
                                $item['children'] = $this->handleExtra($children, $map);
                            }
                        }
                        unset($val['extra']);
                        if (!isset($val['extras'])) {
                            $val['extras'] = [];
                        }
                        $val['extras'][] = $item;
                    }
                }
            }
            $ret[] = $val;
        }
        // 删除多余的配置项
        foreach ($ret as $k => $it) {
            if (in_array($it['name'], $need_delete_names)) {
                unset($ret[$k]);
            }
        }
        return $ret;
    }

    // 更新配置
    public function update()
    {
        $put = request()->put();

        if (empty($put)) {
            return error('参数错误');
        }

        $validate = validate([
                'id'    => 'require|integer',
                'value' => 'max:255'
            ])
            ->message([
                'id.require'    => '配置项ID不能为空',
                'id.integer'    => '配置项ID必须是整数',
                'value.max'     => '配置值不能超过255个字符'
            ]);
        foreach ($put as $val) {
            if (!$validate->check($val)) {
                return error($validate->getError());
            }
        }

        $configs = (new SysConfigModel)->saveAll($put);
        if ($configs->isEmpty()) {
            return error('操作失败');
        }

        return success('操作成功');
    }
}