<?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\haonav\controller\backend;

use think\facade\Db;
use ywxapp\model\BaseModel;
use addon\haonav\model\Links as LinksModel;
use addon\haonav\model\Category as CategoryModel;

/**
 * 后台数据概览仪表盘
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class Dashboard extends HaonavBackend
{

    protected $noNeedVerify = ['*'];

    protected function initialize()
    {
    }

    public function index()
    {
        if ($this->request->isAjax()) {
            return $this->stats();
        }
        // 顺带为存量链接回填拼音搜索串（每次最多 300 条，幂等、失败静默）
        LinksModel::backfillPinyin(300);
        $this->view->assign('title', '数据概览');
        return $this->view->fetch('dashboard/index');
    }

    /**
     * 汇总统计
     */
    protected function stats()
    {
        // 基础计数
        $summary = [
            'links'       => LinksModel::count(),
            'online'      => LinksModel::where('status', 1)->count(),
            'pending'     => LinksModel::where('status', 2)->count(),
            'disabled'    => LinksModel::where('status', 0)->count(),
            'categories'  => CategoryModel::count(),
            'hot'         => LinksModel::where('is_hot', 1)->count(),
            'recommend'   => LinksModel::where('is_recommend', 1)->count(),
            'clicks'      => (int)LinksModel::sum('click_count'),
        ];

        // Top 分类（按链接数）
        $cates = CategoryModel::field('id,title,icon')->select();
        $catStat = [];
        foreach ($cates as $c) {
            $cnt = LinksModel::where('cid', $c->id)->count();
            $catStat[] = ['title' => $c->title, 'icon' => $c->icon, 'count' => $cnt];
        }
        usort($catStat, function ($a, $b) {
            return $b['count'] <=> $a['count'];
        });
        $topCategories = array_slice($catStat, 0, 10);

        // Top 点击
        $topClicks = LinksModel::field('id,title,url,click_count,cid')
            ->where('status', 1)
            ->order('click_count', 'desc')
            ->limit(10)
            ->select();

        // 死链概览（status_code 已检测且非 2xx/3xx，或为 0）
        $deadCount = LinksModel::whereNotNull('status_code')
            ->where(function ($q) {
                $q->where('status_code', 0)->whereOr('status_code', '>=', 400);
            })
            ->count();
        $deadList = LinksModel::field('id,title,url,status_code,last_check_at')
            ->whereNotNull('status_code')
            ->where(function ($q) {
                $q->where('status_code', 0)->whereOr('status_code', '>=', 400);
            })
            ->limit(20)
            ->select();
        $lastCheckAt = (int)LinksModel::max('last_check_at');

        // 分类点击热度（基于 links.click_count 聚合，零额外表）
        $catHeat = [];
        $allCates = CategoryModel::field('id,title,icon')->select();
        foreach ($allCates as $c) {
            $catHeat[] = [
                'cid'    => $c->id,
                'title'  => $c->title,
                'icon'   => $c->icon,
                'clicks' => (int)LinksModel::where('cid', $c->id)->sum('click_count'),
            ];
        }
        usort($catHeat, function ($a, $b) { return $b['clicks'] <=> $a['clicks']; });

        // 访问时段热力图（星期×小时），取最近 30 天，按 date 归并星期；表不存在或查询失败均静默兜底
        $timeHeat = [];
        for ($d = 0; $d < 7; $d++) { $timeHeat[$d] = array_fill(0, 24, 0); }
        $timeTotal = 0;
        $timeRange = date('Y-m-d', strtotime('-30 days')) . ' ~ ' . date('Y-m-d');
        try {
            if (BaseModel::tableExists('wxapp_haonav_click_stats')) {
                $rows = Db::name('haonav_click_stats')
                    ->where('date', '>=', date('Y-m-d', strtotime('-30 days')))
                    ->field('date,hour,clicks')
                    ->select();
                foreach ($rows as $r) {
                    $w = (int)date('w', strtotime($r['date'])); // 0=周日..6=周六
                    $h = (int)$r['hour'];
                    if ($w >= 0 && $w < 7 && $h >= 0 && $h < 24) {
                        $timeHeat[$w][$h] += (int)$r['clicks'];
                        $timeTotal += (int)$r['clicks'];
                    }
                }
            }
        } catch (\Throwable $e) {
            // 统计查询失败不阻断概览
        }

        return $this->result->success([
            'summary'       => $summary,
            'topCategories' => $topCategories,
            'topClicks'     => $topClicks,
            'dead'          => ['count' => $deadCount, 'list' => $deadList, 'last_check_at' => $lastCheckAt ? date('Y-m-d H:i', $lastCheckAt) : ''],
            'heatmap'       => [
                'category'  => $catHeat,
                'time'      => $timeHeat,
                'timeRange' => $timeRange,
                'timeTotal' => $timeTotal,
            ],
        ]);
    }
}