<?php

namespace App\Module\OpenAPI\AdminControllers;

use App\Module\OpenAPI\Models\OpenApiStats;
use App\Module\OpenAPI\Models\OpenApiApp;
use App\Module\OpenAPI\Models\OpenApiLog;
use App\Module\OpenAPI\Repositorys\OpenApiStatRepository;
use App\Module\Admin\AdminControllers\Helper\GridHelper;
use Dcat\Admin\Grid;
use Dcat\Admin\Show;
use Dcat\Admin\Layout\Content;
use Illuminate\Http\Request;
use Spatie\RouteAttributes\Attributes\Resource;
use UCore\DcatAdmin\AdminController;

/**
 * OpenAPI统计分析控制器
 * 
 * 用于后台管理OpenAPI统计数据
 */
#[Resource(
    resource: 'openapi-stats',
    names: [
        'index' => 'admin.openapi.stats.index',
        'show' => 'admin.openapi.stats.show',
    ]
)]
class StatController extends AdminController
{
    protected OpenApiStatRepository $repository;

    public function __construct(OpenApiStatRepository $repository)
    {
        $this->repository = $repository;
    }

    /**
     * 统计概览页面
     *
     * @param Content $content
     * @return Content
     */
    public function index(Content $content): Content
    {
        return $content
            ->title('OpenAPI统计分析')
            ->description('API调用统计和分析')
            ->body($this->grid());
    }

    /**
     * 统计详情页面
     *
     * @param mixed $id
     * @param Content $content
     * @return Content
     */
    public function show($id, Content $content): Content
    {
        return $content
            ->title('统计详情')
            ->description('查看详细统计信息')
            ->body($this->detail($id));
    }

    /**
     * 构建数据表格
     *
     * @return Grid
     */
    protected function grid(): Grid
    {
        return Grid::make($this->repository->query()->with('app'), function (Grid $grid) {
            $grid->column('id', 'ID')->sortable();
            
            $grid->column('app.name', '应用名称')->display(function ($name) {
                return $name ?: '未知应用';
            });
            
            $grid->column('app_id', '应用ID');
            
            $grid->column('date', '统计日期')->display(function ($date) {
                return $date ? $date->format('Y-m-d') : '';
            });
            
            $grid->column('hour', '统计小时')->display(function ($hour) {
                return $hour !== null ? sprintf('%02d:00', $hour) : '全天';
            });
            
            $grid->column('endpoint', '接口端点')->limit(30);
            
            $grid->column('request_count', '请求次数')->sortable()->totalRow();
            
            $grid->column('success_count', '成功次数')->sortable()->totalRow();
            
            $grid->column('error_count', '错误次数')->sortable()->totalRow();
            
            $grid->column('success_rate', '成功率')->display(function () {
                return $this->success_rate . '%';
            })->label('success');
            
            $grid->column('avg_response_time', '平均响应时间')->display(function ($time) {
                return $this->formatted_avg_response_time;
            });
            
            $grid->column('rate_limit_hits', '限流次数')->sortable()->totalRow();
            
            $grid->column('unique_ips', '唯一IP数')->sortable();

            // 筛选器
            $grid->filter(function (Grid\Filter $filter) {
                $filter->equal('app_id', '应用ID')->select(
                    OpenApiApp::pluck('name', 'app_id')
                );
                
                $filter->between('date', '统计日期')->date();
                
                $filter->equal('hour', '统计小时')->select(
                    array_combine(range(0, 23), array_map(function($h) {
                        return sprintf('%02d:00', $h);
                    }, range(0, 23)))
                );
                
                $filter->like('endpoint', '接口端点');
                
                $filter->between('request_count', '请求次数');
                
                $filter->scope('today', '今日')->where('date', now()->toDateString());
                $filter->scope('yesterday', '昨日')->where('date', now()->subDay()->toDateString());
                $filter->scope('this_week', '本周')->whereBetween('date', [
                    now()->startOfWeek()->toDateString(),
                    now()->endOfWeek()->toDateString()
                ]);
                $filter->scope('this_month', '本月')->whereBetween('date', [
                    now()->startOfMonth()->toDateString(),
                    now()->endOfMonth()->toDateString()
                ]);
            });

            // 工具栏
            $grid->tools(function (Grid\Tools $tools) {
                $tools->append('<a href="' . admin_route('admin.openapi.stats.dashboard') . '" class="btn btn-primary">
                    <i class="fa fa-dashboard"></i> 统计仪表板
                </a>');
            });

            // 排序
            $grid->model()->orderBy('date', 'desc')->orderBy('hour', 'desc');

            // 禁用操作
            $grid->disableCreateButton();
            $grid->disableEditButton();
            $grid->disableDeleteButton();
            $grid->disableBatchActions();

            // 行操作
            $grid->actions(function (Grid\Displayers\Actions $actions) {
                $actions->disableEdit();
                $actions->disableDelete();
            });
        });
    }

    /**
     * 构建详情页面
     *
     * @param mixed $id
     * @return Show
     */
    protected function detail($id): Show
    {
        return Show::make($id, $this->repository->query()->with('app'), function (Show $show) {
            $show->field('id', 'ID');
            
            $show->field('app.name', '应用名称');
            $show->field('app_id', '应用ID');
            
            $show->field('date', '统计日期');
            $show->field('hour', '统计小时')->as(function ($hour) {
                return $hour !== null ? sprintf('%02d:00', $hour) : '全天';
            });
            
            $show->field('endpoint', '接口端点');
            
            $show->divider('请求统计');
            $show->field('request_count', '总请求次数');
            $show->field('success_count', '成功次数');
            $show->field('error_count', '错误次数');
            $show->field('success_rate', '成功率')->as(function () {
                return $this->success_rate . '%';
            })->label('success');
            
            $show->divider('响应时间统计');
            $show->field('avg_response_time', '平均响应时间')->as(function () {
                return $this->formatted_avg_response_time;
            });
            $show->field('max_response_time', '最大响应时间')->as(function ($time) {
                return $time < 1000 ? round($time, 2) . 'ms' : round($time / 1000, 2) . 's';
            });
            $show->field('min_response_time', '最小响应时间')->as(function ($time) {
                return $time < 1000 ? round($time, 2) . 'ms' : round($time / 1000, 2) . 's';
            });
            
            $show->divider('其他统计');
            $show->field('rate_limit_hits', '限流命中次数');
            $show->field('unique_ips', '唯一IP数量');
            
            $show->field('error_details', '错误详情')->json();
            
            $show->field('created_at', '创建时间');
            $show->field('updated_at', '更新时间');

            // 禁用操作
            $show->disableEditButton();
            $show->disableDeleteButton();
        });
    }

    /**
     * 统计仪表板
     *
     * @param Content $content
     * @return Content
     */
    public function dashboard(Content $content): Content
    {
        return $content
            ->title('OpenAPI统计仪表板')
            ->description('API调用统计概览')
            ->row(function ($row) {
                // 今日统计卡片
                $row->column(3, $this->todayStatsCard());
                $row->column(3, $this->yesterdayStatsCard());
                $row->column(3, $this->weekStatsCard());
                $row->column(3, $this->monthStatsCard());
            })
            ->row(function ($row) {
                // 趋势图表
                $row->column(6, $this->requestTrendChart());
                $row->column(6, $this->errorRateChart());
            })
            ->row(function ($row) {
                // 热门接口和应用
                $row->column(6, $this->topEndpointsCard());
                $row->column(6, $this->topAppsCard());
            });
    }

    /**
     * 今日统计卡片
     *
     * @return string
     */
    protected function todayStatsCard(): string
    {
        $stats = OpenApiStats::today()->selectRaw('
            SUM(request_count) as total_requests,
            SUM(success_count) as total_success,
            SUM(error_count) as total_errors,
            AVG(avg_response_time) as avg_time
        ')->first();

        $successRate = $stats->total_requests > 0 
            ? round(($stats->total_success / $stats->total_requests) * 100, 2)
            : 0;

        return view('admin::widgets.info-box', [
            'style' => 'info',
            'title' => '今日统计',
            'number' => number_format($stats->total_requests ?? 0),
            'description' => "成功率: {$successRate}%",
            'icon' => 'fa-calendar-day',
        ])->render();
    }

    /**
     * 昨日统计卡片
     *
     * @return string
     */
    protected function yesterdayStatsCard(): string
    {
        $stats = OpenApiStats::yesterday()->selectRaw('
            SUM(request_count) as total_requests,
            SUM(success_count) as total_success,
            SUM(error_count) as total_errors
        ')->first();

        $successRate = $stats->total_requests > 0 
            ? round(($stats->total_success / $stats->total_requests) * 100, 2)
            : 0;

        return view('admin::widgets.info-box', [
            'style' => 'warning',
            'title' => '昨日统计',
            'number' => number_format($stats->total_requests ?? 0),
            'description' => "成功率: {$successRate}%",
            'icon' => 'fa-calendar-minus',
        ])->render();
    }

    /**
     * 本周统计卡片
     *
     * @return string
     */
    protected function weekStatsCard(): string
    {
        $stats = OpenApiStats::thisWeek()->selectRaw('
            SUM(request_count) as total_requests,
            SUM(success_count) as total_success,
            SUM(error_count) as total_errors
        ')->first();

        $successRate = $stats->total_requests > 0 
            ? round(($stats->total_success / $stats->total_requests) * 100, 2)
            : 0;

        return view('admin::widgets.info-box', [
            'style' => 'success',
            'title' => '本周统计',
            'number' => number_format($stats->total_requests ?? 0),
            'description' => "成功率: {$successRate}%",
            'icon' => 'fa-calendar-week',
        ])->render();
    }

    /**
     * 本月统计卡片
     *
     * @return string
     */
    protected function monthStatsCard(): string
    {
        $stats = OpenApiStats::thisMonth()->selectRaw('
            SUM(request_count) as total_requests,
            SUM(success_count) as total_success,
            SUM(error_count) as total_errors
        ')->first();

        $successRate = $stats->total_requests > 0 
            ? round(($stats->total_success / $stats->total_requests) * 100, 2)
            : 0;

        return view('admin::widgets.info-box', [
            'style' => 'primary',
            'title' => '本月统计',
            'number' => number_format($stats->total_requests ?? 0),
            'description' => "成功率: {$successRate}%",
            'icon' => 'fa-calendar-alt',
        ])->render();
    }

    /**
     * 请求趋势图表
     *
     * @return string
     */
    protected function requestTrendChart(): string
    {
        // 获取最近7天的数据
        $data = OpenApiStats::whereBetween('date', [
            now()->subDays(6)->toDateString(),
            now()->toDateString()
        ])->selectRaw('
            date,
            SUM(request_count) as total_requests,
            SUM(success_count) as total_success,
            SUM(error_count) as total_errors
        ')->groupBy('date')->orderBy('date')->get();

        return view('admin::widgets.chart', [
            'title' => '请求趋势（最近7天）',
            'type' => 'line',
            'data' => $data,
        ])->render();
    }

    /**
     * 错误率图表
     *
     * @return string
     */
    protected function errorRateChart(): string
    {
        // 获取最近7天的错误率数据
        $data = OpenApiStats::whereBetween('date', [
            now()->subDays(6)->toDateString(),
            now()->toDateString()
        ])->selectRaw('
            date,
            SUM(request_count) as total_requests,
            SUM(error_count) as total_errors
        ')->groupBy('date')->orderBy('date')->get()->map(function ($item) {
            $item->error_rate = $item->total_requests > 0 
                ? round(($item->total_errors / $item->total_requests) * 100, 2)
                : 0;
            return $item;
        });

        return view('admin::widgets.chart', [
            'title' => '错误率趋势（最近7天）',
            'type' => 'bar',
            'data' => $data,
        ])->render();
    }

    /**
     * 热门接口卡片
     *
     * @return string
     */
    protected function topEndpointsCard(): string
    {
        $endpoints = OpenApiStats::today()->selectRaw('
            endpoint,
            SUM(request_count) as total_requests
        ')->groupBy('endpoint')
          ->orderBy('total_requests', 'desc')
          ->limit(10)
          ->get();

        return view('admin::widgets.table', [
            'title' => '今日热门接口',
            'headers' => ['接口', '请求次数'],
            'data' => $endpoints->map(function ($item) {
                return [$item->endpoint, number_format($item->total_requests)];
            }),
        ])->render();
    }

    /**
     * 热门应用卡片
     *
     * @return string
     */
    protected function topAppsCard(): string
    {
        $apps = OpenApiStats::today()
            ->join('openapi_apps', 'openapi_stats.app_id', '=', 'openapi_apps.app_id')
            ->selectRaw('
                openapi_apps.name,
                SUM(openapi_stats.request_count) as total_requests
            ')->groupBy('openapi_apps.name')
              ->orderBy('total_requests', 'desc')
              ->limit(10)
              ->get();

        return view('admin::widgets.table', [
            'title' => '今日热门应用',
            'headers' => ['应用名称', '请求次数'],
            'data' => $apps->map(function ($item) {
                return [$item->name, number_format($item->total_requests)];
            }),
        ])->render();
    }
}