<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\wxchat\controller\api;

use addon\wxchat\model\WxchatFriend as FriendModel;
use think\facade\Db;
use think\facade\Request;
use ywxapp\controller\FrontendBase;

/**
 * Friend 类
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class Friend extends FrontendBase
{
    /**
     * Summary of noNeedLogin
     * @var array
     */
    protected $noNeedLogin = [];

    /**
     * Summary of noNeedVerify
     * @var array
     */
    protected $noNeedVerify = ['*'];

    /**
     * 控制器初始化 initialize
     * @return void
     */
    protected function initialize()
    {}

    /**
     * 当前用户好友列表（已通过）
     */
    public function index()
    {
        $uid = $this->currentUid();
        $friends = FriendModel::where('uid', $uid)
            ->where('status', 1)
            ->order('create_at', 'desc')
            ->select();
        $list = [];
        foreach ($friends as $f) {
            $u = Db::name('member')->where('uid', $f->fid)
                ->field('uid,nickname,avatar,phone')->find();
            if ($u) {
                $u['friend_id'] = $f->id;
                $u['remark']    = $f->remark;
                $list[] = $u;
            }
        }
        $this->success(['list' => $list, 'total' => count($list)]);
    }

    /**
     * 待处理的好友请求（别人加我，status=0）
     */
    public function requests()
    {
        $uid = $this->currentUid();
        $rows = FriendModel::where('fid', $uid)
            ->where('status', 0)
            ->order('create_at', 'desc')
            ->select();
        $list = [];
        foreach ($rows as $r) {
            $u = Db::name('member')->where('uid', $r->uid)
                ->field('uid,nickname,avatar')->find();
            if ($u) {
                $u['friend_id'] = $r->id;
                $u['remark']    = $r->remark;
                $list[] = $u;
            }
        }
        $this->success(['list' => $list, 'total' => count($list)]);
    }

    /**
     * 发送好友请求
     */
    public function create()
    {
        $uid    = $this->currentUid();
        $fid    = (int) Request::post('fid');
        $remark = Request::post('remark', '');
        if ($fid <= 0 || $fid == $uid) {
            $this->error('无效的好友ID');
        }
        $exist = FriendModel::where('uid', $uid)->where('fid', $fid)->find();
        if ($exist) {
            if ($exist->status == 1) {
                $this->error('你们已经是好友了');
            }
            // 重新发起请求
            $exist->status = 0;
            $exist->remark = $remark;
            $exist->save();
            $this->success([], '已重新发送好友请求');
        }
        FriendModel::create([
            'uid'    => $uid,
            'fid'    => $fid,
            'remark' => $remark,
            'status' => 0,
        ]);
        $this->success([], '好友请求已发送');
    }

    /**
     * 处理好友请求（接受/拒绝）
     * post: { id, action }  action=1 接受, action=2 拒绝
     */
    public function save()
    {
        $uid    = $this->currentUid();
        $id     = (int) Request::post('id');
        $action = (int) Request::post('action', 1);
        $row = FriendModel::where('id', $id)->where('fid', $uid)->where('status', 0)->find();
        if (! $row) {
            $this->error('请求不存在或已处理');
        }
        if ($action == 2) {
            $row->delete();
            $this->success([], '已拒绝');
        }
        $row->status = 1;
        $row->save();
        $this->success([], '已添加为好友');
    }

    /**
     * 好友详情
     */
    public function read()
    {
        $uid = $this->currentUid();
        $id  = (int) Request::post('id');
        $row = FriendModel::where('id', $id)->where('uid', $uid)->find();
        if (! $row) {
            $this->error('好友不存在');
        }
        $u = Db::name('member')->where('uid', $row->fid)
            ->field('uid,nickname,avatar,phone')->find();
        if ($u) {
            $u['friend_id'] = $row->id;
            $u['remark']    = $row->remark;
        }
        $this->success($u);
    }

    /**
     * 修改备注
     * post: { id, remark }
     */
    public function update()
    {
        $uid = $this->currentUid();
        $id  = (int) Request::post('id');
        $row = FriendModel::where('id', $id)->where('uid', $uid)->find();
        if (! $row) {
            $this->error('好友不存在');
        }
        $row->remark = Request::post('remark', '');
        $row->save();
        $this->success([], '备注已更新');
    }

    /**
     * 删除好友
     */
    public function delete()
    {
        $uid = $this->currentUid();
        $id  = (int) Request::post('id');
        $row = FriendModel::where('id', $id)->where('uid', $uid)->find();
        if (! $row) {
            $this->error('好友不存在');
        }
        $row->delete();
        $this->success([], '好友已删除');
    }

    /**
     * 取当前登录用户 uid
     */
    private function currentUid() : int
    {
        return (int) ($this->auth->model->uid ?? $this->auth->uid ?? 0);
    }
}