<?php

namespace App\Console\Commands;

use App\Services\PointsStatsService;
use Illuminate\Console\Command;

class PointsDailyStatsCommand extends Command
{
    protected $signature = 'stats:points-daily
                            {--date= : 统计指定日期 Y-m-d，默认昨天}
                            {--from= : 批量补跑起始日期 Y-m-d}
                            {--to= : 批量补跑结束日期 Y-m-d，需与 --from 同用}';

    protected $description = '按日聚合积分消耗与token用量统计';

    public function handle(PointsStatsService $service)
    {
        $from = $this->option('from');
        $to = $this->option('to');
        $date = $this->option('date');

        dLog('command')->info('开始统计积分消耗与token用量', [
            'date' => $date ?: null,
            'from' => $from ?: null,
            'to'   => $to ?: null,
        ]);

        if ($from && $to) {
            $dates = $this->dateRange($from, $to);
        } elseif ($date) {
            $dates = [$date];
        } elseif ($from || $to) {
            dLog('command')->warning('--from 与 --to 必须同时提供', ['from' => $from, 'to' => $to]);
            $this->error('--from 与 --to 必须同时提供');
            return 1;
        } else {
            $dates = [date('Y-m-d', strtotime('-1 day'))];
        }

        $total = 0;
        try {
            foreach ($dates as $d) {
                if (!$this->validDate($d)) {
                    dLog('command')->error('无效日期，终止统计', ['date' => $d]);
                    $this->error("无效日期: {$d}");
                    return 1;
                }
                $count = $service->statsForDate($d);
                $total += $count;
                dLog('command')->info('日期统计完成', ['date' => $d, 'rows' => $count]);
                $this->info("{$d} 写入 {$count} 行");
            }
        } catch (\Throwable $e) {
            dLog('command')->error('积分token日统计失败', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
            ]);
            $this->error('统计失败: ' . $e->getMessage());
            return 1;
        }

        dLog('command')->info('积分token日统计完成', ['dates' => count($dates), 'total_rows' => $total]);
        $this->info("完成，共写入 {$total} 行");
        return 0;
    }

    private function validDate(string $date): bool
    {
        $parts = explode('-', $date);
        if (count($parts) !== 3) {
            return false;
        }
        [$year, $month, $day] = array_map('intval', $parts);
        return checkdate($month, $day, $year);
    }

    private function dateRange(string $from, string $to): array
    {
        $dates = [];
        $cursor = strtotime($from);
        $end = strtotime($to);
        while ($cursor <= $end) {
            $dates[] = date('Y-m-d', $cursor);
            $cursor = strtotime('+1 day', $cursor);
        }
        return $dates;
    }
}