#include "excelreader.h"

#include <xlnt/xlnt.hpp>
#include <fstream>

namespace fs = std::filesystem;

void ExcelReader::readSellersFromFile(const fs::path& filePath, Marketplace* market)
{
    xlnt::workbook wb;
    std::ifstream mystream(filePath, std::ios::binary);
    if(!mystream.is_open()) {
	throw std::runtime_error("Could not open ecxel file");
    }
    wb.load(mystream);

    for (auto& seller : market->getSellers()) {
        seller->setState(Seller::State::DELETE);
    }

    market->storeToDb(true);
    auto ws = wb.sheet_by_index(0);

    const int START_ROW = 5;
    const int END_ROW = 350;

    int rowCount{};
    for (const auto& row : ws.rows(false)) {
        if (rowCount < START_ROW) {
            ++rowCount;
            continue;
        } else if (rowCount > END_ROW) {
            break;
        }
        if (row[2].value<std::string>().empty() && row[3].value<std::string>().empty()) {
            ++rowCount;
            continue;
        }
        auto seller = std::make_unique<Seller>();
        seller->createUuid();
        seller->setSellerNo(row[0].value<int>());
        seller->setNumArticlesOffered(row[1].value<int>());
        seller->setFirstName(row[2].value<std::string>());
        seller->setLastName(row[3].value<std::string>());
        market->getSellers().push_back(std::move(seller));
        rowCount++;
    }

    // If there was no special seller "Sonderkonto" in import data, then create one
    auto specialSeller = market->findSellerWithUuid("11111111-1111-1111-1111-111111111111");
    if (!specialSeller) {
        auto seller = std::make_unique<Seller>();
        seller->setUuidFromString("11111111-1111-1111-1111-111111111111");
        seller->setSellerNo(0);
        seller->setLastName("Sonderkonto");
        seller->setFirstName("Sonderkonto");
        seller->setNumArticlesOffered(0);
        market->getSellers().push_back(std::move(seller));
    }

    market->sortSellers();
    market->storeToDb();
}