<?php
namespace app\api\controller;

use app\common\controller\Api;
use app\job\ImageJob;
use app\service\ImageService;
use think\App;
use think\Db;
use think\Log;
use think\Queue;
use think\queue\job\Redis;

class WorkOrder extends Api
{
    protected $noNeedLogin = ['*'];
    protected $noNeedRight = ['*'];
    /**
     * 出图接口
     * 此方法处理图像转换为文本的请求，将图像信息存入队列以供后续处理。
     */
    public function imageToText()
    {
        $params = $this->request->param();
        $service = new ImageService();
        $service->handleImage($params);
        $this->success('任务成功提交至队列');
    }


    /**
     * 图生图
     * /sdapi/v1/img2img
     */
    public function imgtowimg()
    {
        $prompt = $this->request->param('prompt', '');
        $denoising = (float)$this->request->param('denoising_strength', 0.2); // 重绘幅度
        $scale = (float)$this->request->param('scale', 2.0); // 放大倍数
        $modelName = $this->request->param('model', 'realisticVisionV51_v51VAE-inpainting.safetensors [f0d4872d24]');

        //原图路径
        $imgRelPath = 'uploads/operate/ai/Preview/arr/0828004096727.png';
        $imgPath = ROOT_PATH . 'public/' . $imgRelPath;

        if (!file_exists($imgPath)) {
            return json(['code' => 1, 'msg' => '原图不存在：' . $imgRelPath]);
        }

        list($originW, $originH) = getimagesize($imgPath);
        $targetW = intval($originW * $scale);
        $targetH = intval($originH * $scale);

        // 将原图转为 base64
        $imgData = file_get_contents($imgPath);
        $base64Img = base64_encode($imgData);
        $initImage = 'data:image/png;base64,' . $base64Img;

        // 构造请求体
        $postData = json_encode([
            'prompt' => $prompt,
            'steps' => 30,
            'cfg_scale' => 7,
            'denoising_strength' => $denoising,
            'width' => $targetW,
            'height' => $targetH,
            'resize_mode' => 1, // 缩放模式
            'inpaint_full_res' => true,
            'inpainting_fill' => 1,
            'init_images' => [$initImage],
            'override_settings' => [
                'sd_model_checkpoint' => $modelName
            ]
        ]);

        $apiUrl = "http://20.0.17.233:45001/sdapi/v1/img2img";
        $headers = ['Content-Type: application/json'];

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $apiUrl);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_TIMEOUT, 90);
        $response = curl_exec($ch);
        $error = curl_error($ch);
        curl_close($ch);

        if ($error) {
            return json(['code' => 1, 'msg' => '请求失败：' . $error]);
        }

        $data = json_decode($response, true);
        if (!isset($data['images'][0])) {
            return json(['code' => 1, 'msg' => '接口未返回图像数据']);
        }

        // 保存生成图像
        $resultImg = base64_decode($data['images'][0]);
        $saveDir = ROOT_PATH . 'public/uploads/img/';
        if (!is_dir($saveDir)) {
            mkdir($saveDir, 0755, true);
        }

        $fileName = 'img2img_' . date('Ymd_His') . '_' . mt_rand(1000, 9999) . '.png';
        $savePath = $saveDir . $fileName;
        file_put_contents($savePath, $resultImg);

        return json([
            'code' => 0,
            'msg' => '图像生成成功',
            'data' => [
                'origin_url' => '/uploads/img/' . $fileName
            ]
        ]);
    }


    // 后期图片处理
    /**
     * 后期图片处理
     * /sdapi/v1/extra-single-image
     */
    public function extra_image()
    {

    }


    /**
     * 查询队列列表
     * 统计文件对应的队列情况
     */
    public function get_queue_logs()
    {
        $params = $this->request->param('old_image_file', '');
        $queue_logs = Db::name('queue_logs')
            ->where('old_image_file', $params)
            ->order('id desc')
            ->select();
        foreach ($queue_logs as &$log) {
            $taskId = $log['id'];
            // 从 image_task_log 表统计状态
            $statusCount = Db::name('image_task_log')
                ->field('status, COUNT(*) as count')
                ->where('task_id', $taskId)
                ->where('mod_rq', null)
                ->group('status')
                ->select();
            $log['已完成数量'] = 0;
            $log['处理中数量'] = 0;
            $log['排队中的数量'] = 0;
            $log['失败数量'] = 0;
            foreach ($statusCount as $item) {
                switch ($item['status']) {
                    case 0:
                        $log['排队中的数量'] = $item['count'];
                        break;
                    case 1:
                        $log['处理中数量'] = $item['count'];
                        break;
                    case 2:
                        $log['已完成数量'] = $item['count'];
                        break;
                    case -1:
                        $log['失败数量'] = $item['count'];
                        break;
                }
            }
            // ✅ 只保留排队中的数量大于 0 的记录
            if ($log['排队中的数量'] > 0) {
                $result[] = $log;
            }
        }
        return json([
            'code' => 0,
            'msg' => '查询成功',
            'data' => $result,
            'count' => count($result)
        ]);

    }

    /**
     * 查询总队列状态(统计当前处理的数据量)
     */
    public function queueStats()
    {
        $statusList = Db::name('image_task_log')
            ->field('status, COUNT(*) as total')
            ->where('mod_rq', null)
            ->where('create_time', '>=', date('Y-m-d 00:00:00'))
            ->group('status')
            ->select();

        $statusCount = [];
        foreach ($statusList as $item) {
            $statusCount[$item['status']] = $item['total'];
        }
        // 总数为所有状态和
        $total = array_sum($statusCount);
        //获取队列当前状态
        $statusText = Db::name('queue_logs')->order('id desc')->value('status');
        return json([
            'code' => 0,
            'msg' => '获取成功',
            'data' => [
                '总任务数'     => $total,
                '待处理'   => $statusCount[0]  ?? 0,
                '处理中'   => $statusCount[1]  ?? 0,
                '成功'   => $statusCount[2]  ?? 0,
                '失败'     => $statusCount[-1] ?? 0,
                '当前状态' => $statusText
            ]

        ]);
    }

    /**
     * 显示当前运行中的队列监听进程
     */
    public function viewQueueStatus()
    {
        $redis = new \Redis();
        $redis->connect('127.0.0.1', 6379);
        $redis->auth('123456');
        $redis->select(15);

        $key = 'queues:imgtotxt';

        // 判断 key 是否存在，避免报错
        if (!$redis->exists($key)) {
            return json([
                'code' => 0,
                'msg'  => '查询成功，队列为空',
                'count' => 0,
                'tasks_preview' => []
            ]);
        }

        $count = $redis->lLen($key);
        $list = $redis->lRange($key, 0, 9);

        // 解码 JSON 内容，确保每一项都有效
        $parsed = array_filter(array_map(function ($item) {
            return json_decode($item, true);
        }, $list), function ($item) {
            return !is_null($item);
        });

        return json([
            'code' => 0,
            'msg'  => '查询成功',
            'count' => $count,
            'tasks_preview' => $parsed
        ]);
    }

    /**
     * 清空队列并删除队列日志记录
     */
    public function stopQueueProcesses()
    {
        $redis = new \Redis();
        $redis->connect('127.0.0.1', 6379);
        $redis->auth('123456');
        $redis->select(15);

        $key_txttoimg = 'queues:txttoimg';
        $key_txttotxt = 'queues:txttotxt';
        $key_imgtotxt = 'queues:imgtotxt';

        $count = $redis->lLen($key_txttoimg) + $redis->lLen($key_txttotxt) + $redis->lLen($key_imgtotxt);

        if ($count === 0) {
            return json([
                'code' => 1,
                'msg'  => '暂无队列需要停止'
            ]);
        }

        // 清空 Redis 队列
        $redis->del($key_txttoimg);
        $redis->del($key_txttotxt);
        $redis->del($key_imgtotxt);

        // 删除数据库中 log = '队列中' 的记录
        Db::name('image_task_log')
            ->where('log', '队列中')
            ->update([
                'status' => "",
                'log' => '清空取消队列',
                'mod_rq' => date('Y-m-d H:i:s')
            ]);

        return json([
            'code' => 0,
            'msg'  => '已成功停止队列任务并清除队列日志'
        ]);
    }

    /**
     * 开启队列任务
     * 暂时用不到、服务器已开启自动开启队列模式
     */
//    public function kaiStats()
//    {
//        // 判断是否已有监听进程在运行
//        $check = shell_exec("ps aux | grep 'queue:listen' | grep -v grep");
//        if ($check) {
//            return json([
//                'code' => 1,
//                'msg'  => '监听进程已存在，请勿重复启动'
//            ]);
//        }
//        // 启动监听
//        $command = 'nohup php think queue:listen --queue --timeout=300 --sleep=3 --memory=256 > /var/log/job_queue.log 2>&1 &';
//        exec($command, $output, $status);
//        if ($status === 0) {
//            return json([
//                'code' => 0,
//                'msg'  => '队列监听已启动'
//            ]);
//        } else {
//            return json([
//                'code' => 1,
//                'msg'  => '队列启动失败',
//                'output' => $output
//            ]);
//        }
//    }


}