#pragma once

#include "vp_infer_node.h"

namespace vp_nodes {
    // secondary infer node, it is the base class of infer node which MUST infer on small cropped image.
    // note: detector such as yolo can be also applied on small cropped images.
    class vp_secondary_infer_node: public vp_infer_node {
    private:
    protected:
        // define how to prepare data
        virtual void prepare(const std::vector<std::shared_ptr<vp_objects::vp_frame_meta>>& frame_meta_with_batch, std::vector<cv::Mat>& mats_to_infer) override;
        bool need_apply(int primary_class_id, int target_width, int target_height);
    public:
        vp_secondary_infer_node(std::string node_name, 
                            std::string model_path, 
                            std::string model_config_path = "", 
                            std::string labels_path = "", 
                            int input_width = 640, 
                            int input_height = 640, 
                            int batch_size = 1,
                            std::vector<int> p_class_ids_applied_to = std::vector<int>(),
                            int min_width_applied_to = 0,
                            int min_height_applied_to = 0,
                            int crop_padding = 10,
                            float scale = 1.0,
                            cv::Scalar mean = cv::Scalar(123.675, 116.28, 103.53),  // imagenet dataset
                            cv::Scalar std = cv::Scalar(1),
                            bool swap_rb = true,
                            bool swap_chn = false);
        ~vp_secondary_infer_node();

        // we do secondary infer logic only if the primary class-id of target is in this vector.
        // not all targets in frame should be handled by vp_secondary_infer_node.
        std::vector<int> p_class_ids_applied_to;
        int crop_padding;
        // min height of target to be handled by vp_secondary_infer_node, 0 means no restriction
        int min_height_applied_to = 0;
        // min width of target to be handled by vp_secondary_infer_node，0 means no restriction
        int min_width_applied_to = 0;
    };

}