#ifndef CONTROLLER_H
#define CONTROLLER_H

#include <hv/HttpServer.h>
#include <QString>

class Controller
{
public:
    /**
     * 析构函数 
     */
    virtual ~Controller() = default;

    /**
     * @brief className 类名称
     * @return 类名
     */
    virtual const QString className() const { return "Controller"; }

    /**
     * @brief get GET 请求处理 
     * @param req   请求requset
     * @param resp  响应response
     * @return http状态码
     */
    virtual int get(HttpRequest *req, HttpResponse *resp) { return methodNotMatch(req, resp); };

    /**
     * @brief post POST 请求处理 
     * @param req   请求requset
     * @param resp  响应response
     * @return http状态码
     */
    virtual int post(HttpRequest *req, HttpResponse *resp) { return methodNotMatch(req, resp); };

    /**
     * @brief put PUT 请求处理 
     * @param req   请求requset
     * @param resp  响应response
     * @return http状态码
     */
    virtual int put(HttpRequest *req, HttpResponse *resp) { return methodNotMatch(req, resp); };

    /**
     * @brief del DEL 请求处理 
     * @param req   请求requset
     * @param resp  响应response
     * @return http状态码
     */
    virtual int del(HttpRequest *req, HttpResponse *resp) { return methodNotMatch(req, resp); };

    /**
     * @brief service 请求入口
     * @param req 请求requset
     * @param resp 响应response
     * @return  http状态码
     */
    int service(HttpRequest *req, HttpResponse *resp)
    {
        if (HTTP_GET == req->method) {
            return get(req, resp);
        } else if (HTTP_POST == req->method) {
            return post(req, resp);
        } else if (HTTP_PUT == req->method) {
            return put(req, resp);
        } else if (HTTP_DELETE == req->method) {
            return del(req, resp);
        } else {
            return methodNotMatch(req, resp);
        }
    }

protected:
    /**
     * @brief methodNotMatch 方法不匹配处理
     * @param req 请求requset
     * @param resp 响应response
     * @return  405-http状态码
     */
    int methodNotMatch(HttpRequest *req, HttpResponse *resp)
    {
        Q_UNUSED(req);
        Q_UNUSED(resp);
        return HTTP_STATUS_METHOD_NOT_ALLOWED;
    }
};

#endif // CONTROLLER_H