<?php

namespace base\admin\controller\system;

use app\admin\model\SystemAdmin;
use app\admin\model\SystemNotice;
use app\admin\model\SystemNoticeSubscribe;
use app\admin\model\SystemNoticeTarget;
use app\admin\service\annotation\ControllerAnnotation;
use app\admin\service\annotation\NodeAnotation;
use app\common\controller\AdminController;
use app\common\service\NoticeService;
use think\App;

/**
 * 通知管理（系统流程写入，不提供 add/edit；删除为软删）.
 *
 * @ControllerAnnotation(title="通知管理")
 */
class NoticeBase extends AdminController
{
    protected $sort = [
        'id' => 'desc',
    ];

    /**
     * 行内属性修改允许的字段（通知主体由系统流程生成，暂不开放字段；
     * 保留标准白名单结构，下游可按需放开）.
     * @var array
     */
    protected $allowModifyFields = [];

    public function __construct(App $app)
    {
        parent::__construct($app);

        $this->model = new SystemNotice();

        // 场景标题映射（scene 等值搜索下拉与列表徽章共用；data_brage 通道下发）
        $sceneOptions = [];
        foreach (NoticeService::scenes() as $scene => $item) {
            $sceneOptions[$scene] = $item['title'];
        }
        $this->assign('select_list_scene', $sceneOptions, true);
    }

    /**
     * @NodeAnotation(title="列表")
     */
    public function index()
    {
        if ($this->request->isAjax()) {
            if (input('selectFields')) {
                return $this->selectList();
            }
            list($page, $limit, $where) = $this->buildTableParames();
            $count = $this->model
                ->where($where)
                ->count();
            $list = $this->model
                ->where($where)
                ->page($page, $limit)
                ->order($this->sort)
                ->select();

            // 发送者昵称：system_admin 与主表存在同名字段，禁用 withJoin 预载；
            // 单查昵称缓存后循环附加
            $senderIds = array_values(array_filter(array_unique($list->column('send_admin_id'))));
            $nicknames = [];
            if (!empty($senderIds)) {
                $nicknames = SystemAdmin::whereIn('id', $senderIds)->column('nickname', 'id');
            }
            foreach ($list as $row) {
                $row['send_admin_nickname'] = $nicknames[$row['send_admin_id']] ?? '';
            }

            $data = [
                'code' => 0,
                'msg' => '',
                'count' => $count,
                'data' => $list,
            ];

            return json($data);
        }

        return $this->fetch();
    }

    /**
     * @NodeAnotation(title="详情")
     */
    public function read($id)
    {
        $row = $this->model->find($id);
        empty($row) && $this->error('数据不存在');

        // 发送者昵称（单查，勿 withJoin，同列表口径）
        $senderNickname = '';
        if (!empty($row->send_admin_id)) {
            $senderNickname = SystemAdmin::where('id', $row->send_admin_id)->value('nickname') ?: '';
        }

        // 投递汇总：channel × status 聚合计数（一条 group 查询）
        $groups = SystemNoticeTarget::where('notice_id', $id)
            ->field('channel,status,count(*) as cnt')
            ->group('channel,status')
            ->select();
        $statusCount = [];
        foreach ($groups as $group) {
            $statusCount[$group['channel']][$group['status']] = (int) $group['cnt'];
        }

        $channelNames = $this->channelNames();
        $delivery = [];
        foreach ($statusCount as $channel => $counts) {
            $delivery[] = [
                'channel'      => $channel,
                'channel_name' => $channelNames[$channel] ?? $channel,
                'pending'      => $counts[SystemNoticeTarget::STATUS_PENDING] ?? 0,
                'sending'      => $counts[SystemNoticeTarget::STATUS_SENDING] ?? 0,
                'success'      => $counts[SystemNoticeTarget::STATUS_SUCCESS] ?? 0,
                'failed'       => $counts[SystemNoticeTarget::STATUS_FAILED] ?? 0,
            ];
        }

        // 投递明细：全量加载（行数=接收方数，量可控）
        $targets = SystemNoticeTarget::where('notice_id', $id)
            ->order('id')
            ->select();

        // 接收人昵称：whereIn 单查映射（禁 withJoin，system_admin 与主表存在同名字段）
        $adminIds = array_values(array_filter(array_unique($targets->column('admin_id'))));
        $nicknames = [];
        if (!empty($adminIds)) {
            $nicknames = SystemAdmin::whereIn('id', $adminIds)->column('nickname', 'id');
        }

        $statusMeta = [
            SystemNoticeTarget::STATUS_PENDING => ['name' => '待发', 'class' => 'layui-badge layui-bg-blue'],
            SystemNoticeTarget::STATUS_SENDING => ['name' => '发送中', 'class' => 'layui-badge layui-bg-orange'],
            SystemNoticeTarget::STATUS_SUCCESS => ['name' => '成功', 'class' => 'layui-badge layui-bg-green'],
            SystemNoticeTarget::STATUS_FAILED  => ['name' => '失败', 'class' => 'layui-badge'],
        ];
        $targetRows = [];
        foreach ($targets as $target) {
            $status = (int) $target->status;
            $targetRows[] = [
                'id'             => $target->id,
                'admin_nickname' => $nicknames[$target->admin_id] ?? ('#' . $target->admin_id),
                'target_addr'    => $target->target_addr,
                'channel_name'   => $channelNames[$target->channel] ?? $target->channel,
                'status'         => $status,
                'status_name'    => $statusMeta[$status]['name'] ?? (string) $status,
                'status_class'   => $statusMeta[$status]['class'] ?? 'layui-badge layui-bg-gray',
                'retry_count'    => (int) $target->retry_count,
                'error_message'  => (string) $target->error_message,
                'send_time'      => (int) $target->send_time,
            ];
        }

        // 场景标题（scenes() 动态映射，未注册场景回退原值）
        $sceneTitle = NoticeService::scenes()[$row->scene]['title'] ?? $row->scene;

        $this->assign('row', $row);
        $this->assign('title', $row->title);
        $this->assign('sender_nickname', $senderNickname);
        $this->assign('scene_title', $sceneTitle);
        $this->assign('delivery', $delivery);
        $this->assign('target_rows', $targetRows);

        return $this->fetch();
    }

    /**
     * @NodeAnotation(title="删除")
     */
    public function delete($id)
    {
        $this->checkPostRequest();
        $row = $this->model->whereIn('id', $id)->select();
        $row->isEmpty() && $this->error('数据不存在');
        try {
            // 模型启用软删（delete_time），delete 即软删；投递行保留不级联
            $save = $row->delete();
        } catch (\Exception $e) {
            $this->error('删除失败:' . $e->getMessage());
        }
        $save ? $this->success('删除成功') : $this->error('删除失败');
    }

    /**
     * @NodeAnotation(title="属性修改")
     */
    public function modify()
    {
        $this->checkPostRequest();
        $post = $this->request->post();
        $rule = [
            'id|ID'     => 'require',
            'field|字段' => 'require',
            'value|值'  => 'require',
        ];
        $this->validate($post, $rule);
        if (!in_array($post['field'], $this->allowModifyFields)) {
            $this->error('该字段不允许修改：' . $post['field']);
        }
        $row = $this->model->find($post['id']);
        empty($row) && $this->error('数据不存在');
        try {
            $save = $row->save([$post['field'] => $post['value']]);
        } catch (\Exception $e) {
            $this->error($e->getMessage());
        }
        $save ? $this->success('保存成功') : $this->error('未做变更');
    }

    /**
     * @NodeAnotation(title="失败重发")
     *
     * POST notice_id（批量重置该通知全部失败投递）或 target_id（单行）。
     * 原子条件 UPDATE：仅命中 status=3 的失败行（已成功/发送中行不受影响），
     * 影响行数即真实重置数。重置后由 timer 消费者按退避策略重新消费。
     */
    public function resend()
    {
        $this->checkPostRequest();
        $noticeId = $this->request->post('notice_id/d', 0);
        $targetId = $this->request->post('target_id/d', 0);
        if (empty($noticeId) && empty($targetId)) {
            $this->error('缺少参数：notice_id 或 target_id');
        }

        $query = SystemNoticeTarget::where('status', SystemNoticeTarget::STATUS_FAILED);
        if ($noticeId > 0) {
            $query->where('notice_id', $noticeId);
        } else {
            $query->where('id', $targetId);
        }
        $count = $query->update([
            'status'          => SystemNoticeTarget::STATUS_PENDING,
            'retry_count'     => 0,
            'next_retry_time' => 0,
            'error_message'   => '',
        ]);

        $count > 0
            ? $this->success('已将 ' . $count . ' 条失败投递重置为待发送')
            : $this->error('没有可重发的失败投递（仅失败状态可重发）');
    }

    /**
     * @NodeAnotation(title="场景总览")
     *
     * 只读渲染 scenes() 注册表：标题/渠道/是否必选/每场景订阅统计（分式展示）。
     * 场景为代码级注册表，本页不提供任何写操作。
     */
    public function sceneOverview()
    {
        // 每场景订阅统计：一条 group 查询（scene, count(distinct admin_id)）
        $subGroups = SystemNoticeSubscribe::where('status', 1)
            ->field('scene, count(distinct admin_id) as admin_cnt')
            ->group('scene')
            ->select();
        $subscribeCounts = [];
        foreach ($subGroups as $item) {
            $subscribeCounts[$item['scene']] = (int) $item['admin_cnt'];
        }

        // 全体启用管理员数（软删自动排除）一次单查
        $totalAdmins = SystemAdmin::where('status', 1)->count();

        $channelNames = $this->channelNames();
        $rows = [];
        foreach (NoticeService::scenes() as $scene => $item) {
            $rows[] = [
                'scene'         => $scene,
                'title'         => $item['title'],
                'channel_names' => implode('、', array_map(function ($channel) use ($channelNames) {
                    return $channelNames[$channel] ?? $channel;
                }, $item['channels'])),
                'locked'        => (int) $item['locked'],
                'subscribed'    => $subscribeCounts[$scene] ?? 0,
                'total_admins'  => $totalAdmins,
            ];
        }

        $this->assign('rows', $rows);
        $this->assign('total_admins', $totalAdmins);

        return $this->fetch();
    }

    /**
     * 渠道标识到中文名的映射（详情汇总/明细/场景总览共用）.
     */
    private function channelNames(): array
    {
        return [
            NoticeService::CHANNEL_INMAIL  => '站内信',
            NoticeService::CHANNEL_EMAIL   => '邮件',
            NoticeService::CHANNEL_SMS     => '短信',
            NoticeService::CHANNEL_WECHAT  => '公众号',
        ];
    }
}