<?php

namespace base\common\service;

use app\admin\model\SystemTimerConfig;
use app\common\model\VirtualModel;
use app\common\service\HostService;

class TimerServiceBase
{
    protected $taskList = null;

    /**
     * 将配置文件中的定时任务同步到数据库.
     * 仅新增不存在的记录，标记孤立记录，不覆盖 run_type/status.
     */
    public static function syncConfigToDatabase(): void
    {
        $config_list = include app_file_path('common/command/timer/config.php');

        // 提取唯一的任务名称（并发扩展会产生同名配置，需去重）
        $config_names = [];
        foreach ($config_list as $config_item) {
            $item = static::initConfigItem($config_item);
            $name = (string) $item['name'];
            if ($name !== '' && !in_array($name, $config_names, true)) {
                $config_names[] = $name;
            }
        }

        // 查询已有记录
        $existing = SystemTimerConfig::column('task_name');
        $now = time();

        // 新增：配置中有但数据库中没有的
        $new_names = array_diff($config_names, $existing);
        foreach ($new_names as $name) {
            SystemTimerConfig::create([
                'task_name' => $name,
                'run_type' => 'auto',
                'status' => 1,
                'is_synced' => 1,
                'create_time' => $now,
                'update_time' => $now,
            ]);
        }

        // 已存在且仍在配置中：仅更新 is_synced=1，不动 run_type/status
        $still_exists = array_intersect($existing, $config_names);
        foreach ($still_exists as $name) {
            SystemTimerConfig::where('task_name', $name)
                ->update([
                    'is_synced' => 1,
                    'update_time' => $now,
                ]);
        }

        // 已存在但不在配置中：标记为孤立
        $orphaned = array_diff($existing, $config_names);
        foreach ($orphaned as $name) {
            SystemTimerConfig::where('task_name', $name)
                ->update([
                    'is_synced' => 0,
                    'update_time' => $now,
                ]);
        }
    }

    public static function generateAllTaskInstanceList()
    {
        $config_list = include app_file_path('common/command/timer/config.php');
        $task_list = [];
        foreach ($config_list as  $config_item) {
            if ($config_item['name'] == 'http_demo' && !env('adminsystem.is_demo', false)) {
                continue;
            }

            $task_list = array_merge($task_list, static::generateTaskInstanceFromConfig($config_item));
        }

        return $task_list;
    }

    public function generateAllRequestList()
    {
        if ($this->taskList === null) {
            $this->taskList = static::generateAllTaskInstanceList();
        }

        $request_list = array_filter($this->taskList, function ($item) {
            return $item['type'] == 'site';
        });

        return $request_list;
    }

    public function generateAllCallList()
    {
        if ($this->taskList === null) {
            $this->taskList = static::generateAllTaskInstanceList();
        }

        $request_list = array_filter($this->taskList, function ($item) {
            return $item['type'] == 'call';
        });

        return $request_list;
    }

    public static function generateTaskInstanceFromConfig($config_item)
    {
        $config_item = static::initConfigItem($config_item);
        $request_list = [];
        $concurrency = $config_item['concurrency'];

        for ($i = 0; $i < $concurrency; $i++) {
            $target = $config_item['target'];
            $params = [
                'concurrency_id' => $i,
                'concurrency_count' => $concurrency,
                'host_id' => HostService::getNodeId(),
                'task_name' => $config_item['name'],
            ];
            // 处理target
            if ($config_item['type'] == 'site') {
                $target_info = parse_url($target);
                // 将 /do 替换为 /execute，用于日志包裹
                if (isset($target_info['path'])) {
                    $target_info['path'] = preg_replace('#/do$#', '/execute', $target_info['path']);
                }
                $query_params = [];
                if (isset($target_info['query'])) {
                    parse_str($target_info['query'], $query_params);
                }
                $query_params = array_merge($query_params, $params);
                $target_info['query'] = http_build_query($query_params);
                $target = unparse_url($target_info);
            } elseif ($config_item['type'] == 'call') {
                $target = $config_item['target'];
            }

            $new_config_item = clone $config_item;
            $new_config_item['target'] = $target;
            $new_config_item['concurrency_id'] = $i;

            $request_list[] = $new_config_item;
        }

        return $request_list;
    }

    public static function initConfigItem($config)
    {
        $default = [
            'name' => 'http_demo',
            'type' => 'site',
            'target' => '',
            'frequency' => 600,
            'concurrency' => 1,
            'run_type' => 'auto',
        ];

        $data = array_merge($default, $config);

        if ($data['frequency'] < 0) {
            $data['frequency'] = 0;
        }
        $model_timer = new VirtualModel($data);

        return $model_timer;
    }
}