#include "paper.h"

#include <string>
#include <map>

namespace paper
{
    class paper_init
    {
        std::map<std::string, SIZE> papers_;

    public:

        paper_init()
        {
            papers_["A3"] = {297, 420};
            papers_["A4"] = {210, 297};
            papers_["A5"] = {148, 210};
            papers_["A6"] = {105, 148};
            papers_["B4"] = {250, 352};
            papers_["B5"] = {176, 250};
            papers_["B6"] = {125, 176};
            papers_["8\345\274\200"] = {285, 420};  // 8开
            papers_["16\345\274\200"] = {210, 285}; // 16开

            papers_["Letter"] = {216, 322};         // Letter+
            papers_["Double Letter"] = {322, 432};
            papers_["LEGAL"] = {236, 381};          // Legal+

            // 匹配原始尺寸
            papers_["\345\214\271\351\205\215\345\216\237\345\247\213\345\260\272\345\257\270"] = papers_["A3"];

            // 最大扫描尺寸
            papers_["\346\234\200\345\244\247\346\211\253\346\217\217\345\260\272\345\257\270"] = papers_["A3"];

            // 最大扫描尺寸自动裁切
            papers_["\346\234\200\345\244\247\346\211\253\346\217\217\345\260\272\345\257\270\350\207\252\345\212\250\350\243\201\345\210\207"] = papers_["A3"];

            // 三联试卷
            papers_["\344\270\211\350\201\224\350\257\225\345\215\267"] = {216, 356};
        }
        ~paper_init()
        {
            papers_.clear();
        }

    public:
        SIZE size(const char* name)
        {
            if(papers_.count(name))
                return papers_[name];

            return {0, 0};
        }
    };

    static paper_init paperi;

    // get known paper size in mm
    SIZE size(const char* name)
    {
        return paperi.size(name);
    }

    void swap_size(SIZE& s)
    {
        s.cx ^= s.cy;
        s.cy ^= s.cx;
        s.cx ^= s.cy;
    }
};