<?php

declare(strict_types=1);

namespace app\common\command;

use app\common\model\doctor\Appointment;
use think\console\Command;
use think\console\Input;
use think\console\input\Option;
use think\console\Output;
use think\facade\Db;
use think\facade\Log;

/**
 * 挂号单状态自动更新
 * - 预约时间已过：status -> 4（已过号）
 * - 预约时间已过超过8小时：status -> 2（已取消）
 * - 不处理：status=3（已完成）、未到时间的单子
 */
class UpdateAppointmentStatus extends Command
{
    protected function configure()
    {
        $this->setName('update_appointment_status')
            ->setDescription('自动更新挂号单状态：过号->4，超8小时->2（已取消）')
            ->addOption('dry', null, Option::VALUE_NONE, '仅预览不执行');
    }

    protected function execute(Input $input, Output $output)
    {
        $dryRun = $input->getOption('dry');
        $now = time();
        $table = (new Appointment())->getTable();

        // 1. 超过8小时 -> 已取消(status=2)
        $cancelWhere = "status = 1 AND CONCAT(appointment_date, ' ', IFNULL(appointment_time, '00:00:00')) <= DATE_SUB(NOW(), INTERVAL 8 HOUR)";
        $cancelSql = "UPDATE {$table} SET status = 2, update_time = ? WHERE {$cancelWhere}";
        $cancelCount = $dryRun ? 0 : Db::execute($cancelSql, [$now]);

        // 2. 已过时间但未超8小时 -> 已过号(status=4)
        $missedWhere = "status = 1 AND CONCAT(appointment_date, ' ', IFNULL(appointment_time, '00:00:00')) < NOW() AND CONCAT(appointment_date, ' ', IFNULL(appointment_time, '00:00:00')) > DATE_SUB(NOW(), INTERVAL 8 HOUR)";
        $missedSql = "UPDATE {$table} SET status = 4, update_time = ? WHERE {$missedWhere}";
        $missedCount = $dryRun ? 0 : Db::execute($missedSql, [$now]);

        if ($dryRun) {
            $cancelPreview = Db::query("SELECT id FROM {$table} WHERE {$cancelWhere}");
            $missedPreview = Db::query("SELECT id FROM {$table} WHERE {$missedWhere}");
            $output->writeln('[预览] 将改为已取消: ' . count($cancelPreview) . ' 条');
            $output->writeln('[预览] 将改为已过号: ' . count($missedPreview) . ' 条');
            return;
        }

        $output->writeln("已取消(超8小时): {$cancelCount} 条");
        $output->writeln("已过号: {$missedCount} 条");
        Log::info("update_appointment_status: 已取消 {$cancelCount}, 已过号 {$missedCount}");
    }
}