<?php

namespace app\admin\controller\system;

use app\common\controller\AdminController;
use app\admin\service\annotation\ControllerAnnotation;
use app\admin\service\annotation\NodeAnotation;
use think\App;
use think\facade\Cache;

/**
 * @ControllerAnnotation(title="定时任务协调配置表")
 */
class TimerConfig extends AdminController
{
    use \app\admin\traits\Curd;

    public function __construct(App $app)
    {
        parent::__construct($app);

        $this->model = new \app\admin\model\SystemTimerConfig();

        $this->assign('select_list_run_type', $this->model::SELECT_LIST_RUN_TYPE, true);
        $this->assign('select_list_status', $this->model::SELECT_LIST_STATUS, true);
        $this->assign('select_list_is_synced', $this->model::SELECT_LIST_IS_SYNCED, true);
        $this->assign('select_list_manual_trigger', $this->model::SELECT_LIST_MANUAL_TRIGGER, true);

        // 允许通过行内修改的字段
        $this->allowModifyFields = [
            'status',
            'run_type',
            'concurrency',
        ];
    }

    /**
     * @NodeAnotation(title="添加")
     */
    public function add()
    {
        $this->error('定时任务配置由系统同步生成，不支持手动添加');
    }

    /**
     * @NodeAnotation(title="删除")
     */
    public function delete($id)
    {
        $this->error('定时任务配置由系统管理，不支持删除');
    }

    /**
     * @NodeAnotation(title="编辑")
     */
    public function edit($id)
    {
        $row = $this->model->find($id);
        empty($row) && $this->error('数据不存在');
        if ($this->request->isPost()) {
            $post = $this->request->post();
            // 只允许修改 run_type、status、concurrency
            $post = array_intersect_key($post, array_flip(['run_type', 'status', 'concurrency']));
            if (array_key_exists('concurrency', $post)) {
                // 空/null=继承代码默认写 NULL；正整数=覆盖；0或负数=拒绝（M5 防静默吞任务）
                $post['concurrency'] = $this->normalizeConcurrency($post['concurrency']);
            }
            try {
                $save = $row->save($post);
            } catch (\Exception $e) {
                $this->error('保存失败:' . $e->getMessage());
            }
            if ($save) {
                // D18：DB commit 后递增脏标记，触发 timer reload（edit 改 concurrency/run_type/status，与 trigger 一致）
                Cache::inc('timer_config_version');
                $this->success('保存成功');
            }
            $this->error('保存失败');
        }
        $this->assign('row', $row);

        return $this->fetch();
    }

    /**
     * @NodeAnotation(title="手动触发")
     */
    public function trigger($id)
    {
        $this->checkPostRequest();
        $row = $this->model->find($id);
        if (!$row) {
            $this->error('数据不存在');
        }
        $trigger_node_id = $this->request->post('trigger_node_id');
        if (empty($trigger_node_id)) {
            $this->error('请选择节点');
        }
        try {
            // 手动触发跨 run_type、穿透 status（D19：调试工作流，关闭+手动触发+打开）
            $row->save([
                'manual_trigger'   => 1,
                'trigger_node_id'  => $trigger_node_id,
                'last_trigger_time' => time(),
            ]);
            // D18：DB commit 成功后才递增 version，防脏读（commit 前递增→节点 reload 读旧值→永不 reload）
            Cache::inc('timer_config_version');
        } catch (\Exception $e) {
            $this->error('触发失败:' . $e->getMessage());
        }
        $this->success('触发成功，等待定时器执行');
    }

    /**
     * @NodeAnotation(title="节点列表")
     */
    public function hostList()
    {
        $list = \app\admin\model\SystemHost::where('status', 1)
            ->field('node_id,is_master,ip_address,last_heartbeat_at')
            ->order('is_master desc, node_id asc')
            ->select();
        $this->success('', $list);
    }

    /**
     * @NodeAnotation(title="属性修改")
     */
    public function modify()
    {
        $this->checkPostRequest();
        $post = $this->request->post();
        $rule = [
            'id|ID'    => 'require',
            'field|字段' => 'require',
            'value|值'  => 'require',
        ];
        $this->validate($post, $rule);
        if (!in_array($post['field'], $this->allowModifyFields)) {
            $this->error('该字段不允许修改：' . $post['field']);
        }
        // concurrency 行内修改必须为正整数（M5 防静默吞任务；继承默认请走 edit 表单传空值）
        if ($post['field'] === 'concurrency' && (!is_numeric($post['value']) || (int) $post['value'] < 1)) {
            $this->error('concurrency 必须是正整数');
        }
        $row = $this->model->find($post['id']);
        empty($row) && $this->error('数据不存在');
        $value = $post['field'] === 'concurrency' ? (int) $post['value'] : $post['value'];
        try {
            $save = $row->save([$post['field'] => $value]);
        } catch (\Exception $e) {
            $this->error($e->getMessage());
        }
        if ($save) {
            // D18：DB commit 后递增脏标记，触发 timer reload（行内改 concurrency/status/run_type，同 edit）
            Cache::inc('timer_config_version');
        }
        $this->success('保存成功');
    }

    /**
     * 归一化 concurrency 入库值.
     * 空字符串/null → null（继承代码默认）；正整数 → int；0或负数/非数字 → 拒绝.
     *
     * @param mixed $value 提交值
     * @return int|null
     */
    private function normalizeConcurrency($value)
    {
        if ($value === '' || $value === null) {
            return null;
        }
        if (!is_numeric($value) || (int) $value < 1) {
            $this->error('concurrency 必须是正整数或空(继承默认)');
        }

        return (int) $value;
    }
}