<?php

namespace App\Module\Transaction\Services;

use App\Module\Test\Models\Test as TestModel;
use Illuminate\Support\Facades\DB;

class TestStatisticsService implements TestStatisticsServiceInterface
{
    /**
     * 获取总数统计
     *
     * @return array
     */
    public function getTotalStatistics(): array
    {
        return [
            'total' => TestModel::count(),
            'active' => TestModel::where('status', 1)->count(),
            'inactive' => TestModel::where('status', 0)->count(),
            'deleted' => TestModel::onlyTrashed()->count(),
        ];
    }

    /**
     * 获取状态分布统计
     *
     * @return array
     */
    public function getStatusDistribution(): array
    {
        return TestModel::select('status', DB::raw('count(*) as count'))
            ->groupBy('status')
            ->get()
            ->mapWithKeys(function ($item) {
                return [$item->status => $item->count];
            })
            ->toArray();
    }

    /**
     * 获取每日创建数量统计
     *
     * @param int $days
     * @return array
     */
    public function getDailyCreationStatistics(int $days = 7): array
    {
        $startDate = now()->subDays($days)->startOfDay();
        $endDate = now()->endOfDay();

        return TestModel::select(
            DB::raw('DATE(created_at) as date'),
            DB::raw('count(*) as count')
        )
            ->whereBetween('created_at', [$startDate, $endDate])
            ->groupBy('date')
            ->orderBy('date')
            ->get()
            ->mapWithKeys(function ($item) {
                return [$item->date => $item->count];
            })
            ->toArray();
    }
}