<?php

/**
 * 文件功能：勤务台页面控制器
 * 左侧五个子菜单：任职列表、日榜、周榜、月榜、总榜
 * 路由：GET /duty-hall?tab=roster|day|week|month|all
 *
 * 榜单统计三项指标：
 *  1. 在线时长      — position_duty_logs.duration_seconds 合计
 *  2. 管理操作次数  — position_authority_logs 非任免类操作次数（warn/kick/mute/banip/other）
 *  3. 奖励金币次数  — position_authority_logs WHERE action_type='reward' 的次数及累计金额
 *
 * @author   ChatRoom Laravel
 *
 * @version  1.2.0
 */

namespace App\Http\Controllers;

use App\Models\Department;
use App\Models\PositionAuthorityLog;
use App\Models\PositionDutyLog;
use Illuminate\Http\Request;
use Illuminate\View\View;

class DutyHallController extends Controller
{
    /**
     * 勤务台主页（根据 tab 切换内容）
     */
    public function index(Request $request): View
    {
        $tab = $request->input('tab', 'roster');

        // ── 任职列表：按部门→职务展示全部（含空缺） ──────────────────
        $currentStaff = null;
        if ($tab === 'roster') {
            $currentStaff = Department::query()
                ->with([
                    'positions' => fn ($q) => $q->orderByDesc('rank'),
                    'positions.activeUserPositions.user',
                ])
                ->orderByDesc('rank')
                ->get();
        }

        // ── 日/周/月/总榜：三项指标综合排行 ─────────────────────────
        $leaderboard = null;
        if (in_array($tab, ['day', 'week', 'month', 'all'])) {

            // ① 在线时长（position_duty_logs）
            $dutyQuery = PositionDutyLog::query()
                ->selectRaw('user_id, SUM(duration_seconds) as total_seconds, COUNT(*) as checkin_count')
                // 只统计有离开时间的已完结记录，open session 不计入（防止实时计算偏差）
                ->whereNotNull('logout_at');

            // ② 管理操作（position_authority_logs，排除任命/撤销等人事操作）
            $authQuery = PositionAuthorityLog::query()
                ->selectRaw('
                    user_id,
                    COUNT(*) as admin_count,
                    SUM(CASE WHEN action_type = \'reward\' THEN 1 ELSE 0 END) as reward_count,
                    SUM(CASE WHEN action_type = \'reward\' THEN COALESCE(amount, 0) ELSE 0 END) as reward_total
                ')
                ->whereNotIn('action_type', ['appoint', 'revoke']);

            // 按时间段同步过滤两张表
            match ($tab) {
                'day' => [
                    $dutyQuery->whereDate('login_at', today()),
                    $authQuery->whereDate('created_at', today()),
                ],
                'week' => [
                    $dutyQuery->whereBetween('login_at', [now()->startOfWeek(), now()->endOfWeek()]),
                    $authQuery->whereBetween('created_at', [now()->startOfWeek(), now()->endOfWeek()]),
                ],
                'month' => [
                    $dutyQuery->whereYear('login_at', now()->year)->whereMonth('login_at', now()->month),
                    $authQuery->whereYear('created_at', now()->year)->whereMonth('created_at', now()->month),
                ],
                'all' => null,   // 不限制时间
            };

            // 执行查询
            $dutyRows = $dutyQuery
                ->groupBy('user_id')
                ->orderByDesc('total_seconds')
                ->limit(20)
                ->with('user')
                ->get();

            // 管理操作数据（按 user_id 索引，方便后续合并）
            $authMap = $authQuery
                ->groupBy('user_id')
                ->get()
                ->keyBy('user_id');

            // 合并两表数据：为每条勤务记录附加管理操作指标
            $leaderboard = $dutyRows->map(function ($row) use ($authMap) {
                $auth = $authMap->get($row->user_id);
                $row->admin_count = (int) ($auth?->admin_count ?? 0);
                $row->reward_count = (int) ($auth?->reward_count ?? 0);
                $row->reward_total = (int) ($auth?->reward_total ?? 0);

                return $row;
            });
        }

        // 各榜标签配置
        $tabs = [
            'roster' => ['label' => '任职列表', 'icon' => '🏛️'],
            'day' => ['label' => '日榜',     'icon' => '☀️'],
            'week' => ['label' => '周榜',     'icon' => '📆'],
            'month' => ['label' => '月榜',     'icon' => '🗓️'],
            'all' => ['label' => '总榜',     'icon' => '🏆'],
        ];

        return view('duty-hall.index', compact(
            'tab',
            'tabs',
            'currentStaff',
            'leaderboard',
        ));
    }
}