<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;

/**
 * 隐私与提醒设置（M6）
 */
class Setting extends Api
{
    protected $noNeedLogin = [];
    protected $noNeedRight = '*';

    protected $defaultRemind = [
        'period'    => true,   // 经期前提醒
        'ovulation' => true,   // 排卵日提醒
        'record'    => true,   // 每日记录提醒
        'care'      => true,   // 关怀提醒（家人共护）
        'time'      => '21:00',
    ];

    /**
     * 读取设置
     */
    public function index()
    {
        $setting = Db::name('user_setting')->where('user_id', $this->auth->id)->find();
        if (!$setting) {
            $setting = [
                'app_lock'   => 'none',
                'local_only' => 0,
                'remind_json' => json_encode($this->defaultRemind),
            ];
        }
        $remind = json_decode($setting['remind_json'], true) ?: $this->defaultRemind;
        $remind = array_merge($this->defaultRemind, $remind);

        $this->success('', [
            'app_lock'    => $setting['app_lock'],
            'has_lock_code' => !empty($setting['app_lock_value']),
            'local_only'  => (int)$setting['local_only'],
            'remind'      => $remind,
        ]);
    }

    /**
     * 保存设置
     * POST app_lock=none|password|biometric, app_lock_code=1234, local_only=0|1, remind={"period":true,...}
     */
    public function save()
    {
        $userId = $this->auth->id;
        $exist = Db::name('user_setting')->where('user_id', $userId)->find();

        $data = ['updatetime' => time()];

        $appLock = $this->request->post('app_lock', null);
        if ($appLock !== null) {
            if (!in_array($appLock, ['none', 'password', 'biometric'])) {
                $this->error('应用锁类型不正确');
            }
            $data['app_lock'] = $appLock;
        }

        $code = (string)$this->request->post('app_lock_code', '');
        if ($code !== '') {
            if (!preg_match('/^\d{4,6}$/', $code)) {
                $this->error('应用锁密码需为 4-6 位数字');
            }
            // 仅存哈希，不落明文
            $data['app_lock_value'] = md5($code . 'huāqī');
        }

        $localOnly = $this->request->post('local_only', null);
        if ($localOnly !== null) {
            $data['local_only'] = (int)!!$localOnly;
        }

        $remind = $this->readRemind();
        if ($remind !== null) {
            $merged = array_merge($this->defaultRemind, array_intersect_key($remind, $this->defaultRemind));
            if (isset($merged['time']) && !preg_match('/^\d{2}:\d{2}$/', $merged['time'])) {
                $merged['time'] = '21:00';
            }
            $data['remind_json'] = json_encode($merged, JSON_UNESCAPED_UNICODE);
        }

        if ($exist) {
            Db::name('user_setting')->where('id', $exist['id'])->update($data);
        } else {
            $data['user_id'] = $userId;
            $data['createtime'] = time();
            Db::name('user_setting')->insert($data);
        }

        $this->success('已保存');
    }

    /**
     * 读取提醒配置：支持 remind_xxx 独立字段（推荐，兼容 request filter）与 remind JSON
     * @return array|null
     */
    protected function readRemind()
    {
        $keys = ['period', 'ovulation', 'record', 'care', 'time'];
        $result = [];
        $hasField = false;
        foreach ($keys as $key) {
            $value = $this->request->post('remind_' . $key, null);
            if ($value !== null) {
                $hasField = true;
                $result[$key] = $key === 'time' ? (string)$value : (bool)(int)$value;
            }
        }
        if ($hasField) {
            return $result;
        }

        // 兼容 JSON 传参（注意：全局 filter 会把引号转义，需还原）
        $json = $this->request->post('remind', null);
        if ($json === null || $json === '') {
            return null;
        }
        $arr = is_array($json) ? $json : json_decode(htmlspecialchars_decode((string)$json, ENT_QUOTES), true);
        return is_array($arr) ? $arr : null;
    }
}