#include "source/solar/cbf_cache.h"

namespace solar
{
    static const int comparecolumns[] = {cbf_store::sisortframe, cbf_store::sisortrtr, 0};      

    void cbf_cache::clear() 
    {
        cache_map.clear();
    }
    int cbf_cache::size() const 
    { 
        return cache_map.size();
    }
    bool cbf_cache::hasitem(uint32_t can_id) const 
    { 
        return cache_map.find(can_id) != cache_map.end(); 
    }
    cbf_cache_item& cbf_cache::getitem(uint32_t can_id) 
    { 
        return cache_map.at(can_id); 
    }
    const cbf_cache_item& cbf_cache::getitem(uint32_t can_id) const 
    { 
        return cache_map.at(can_id); 
    }    
    bool cbf_cache::additem(const cbf_store& storeitem)
    {
        const auto& ret = cache_map.emplace(storeitem.can_id, cbf_cache_item(storeitem));
        if(ret.second) {
            return false; // new item inserted, no publish
        }
        auto& kvp = *ret.first;
        auto& item = kvp.second;
        auto updateresult = item.update(storeitem, comparecolumns, 1);
        if(updateresult & cbf_store::cbf_updateresult::stu_DUPLICATE) {
            // ESP_LOGI(item.store0.tag("== ST1 DUP == ").c_str(), item.store0.to_string().c_str());
            return updateresult & cbf_store::cbf_updateresult::stu_PUBLISH;
        }
        // try next store to see if it has a duplicate of new item
        updateresult = item.update(storeitem, comparecolumns, 2);
        if(updateresult & cbf_store::cbf_updateresult::stu_DUPLICATE) {
            // ESP_LOGI(item.store1.tag("== ST2 DUP == ").c_str(), item.store1.to_string().c_str());
            return updateresult & cbf_store::cbf_updateresult::stu_PUBLISH;
        }
        item.update(storeitem);         
        //cache_map.erase(kvp.first);
        //ret = cache_map.emplace(storeitem.can_id, item); 
        //if(!ret.second) {
        //    ESP_LOGE(item.store0.tag("== ST1 ERR == ").c_str(), "Error re-inserting item into cache_map");
        //    ESP_LOGE(item.store1.tag("== ST2 ERR == ").c_str(), "Error re-inserting item into cache_map");
        //}
        return false;
    }
    const cb_frame& cbf_cache::get_frame(uint32_t can_id) const
    {
        auto it = cache_map.find(can_id);
        if(it == cache_map.end())
            return emptyframe; // return reference to static empty frame if not found
        const auto& item = it->second;
        return item.get_frame();
    }
    bool cbf_cache::send_frame(esphome::canbus::Canbus *canbus, uint32_t can_id, bool extended_id, bool remote_transmission_request)
    {
        if(!this->hasitem(can_id))
            return false;
        const auto& cbf = get_frame(can_id);
        if(cbf.getpublish()) {
            return cbf.send_frame(canbus, extended_id, remote_transmission_request);
        }
        return false;
    }
    // static version to send arbitrary frame
    bool cbf_cache::send_frame(esphome::canbus::Canbus *canbus, uint32_t can_id, const byte_vector& frame, bool extended_id, bool remote_transmission_request)
    {
        return cb_frame::send_frame(canbus, can_id, frame, extended_id, remote_transmission_request);
    }
    bool cbf_cache::send_request(esphome::canbus::Canbus *canbus, uint32_t can_id, bool extended_id)
    {
        return cb_frame::send_frame(canbus, can_id, {}, extended_id, true);
    }

  } // namespace solar