#include <fstream>
#include <iostream>

#include "../mount_astrom.h"


static std::string leap_secs_file = R"--(
#  Value of TAI-UTC in second valid beetween the initial value until
#  the epoch given on the next line. The last line reads that NO
#  leap second was introduced since the corresponding date
#  Updated through IERS Bulletin 69 issued in January 2025
#
#
#  File expires on 28 December 2025
#
#
#    MJD        Date        TAI-UTC (s)
#           day month year
#    ---    --------------   ------
#
    41317.0    1  1 1972       10
    41499.0    1  7 1972       11
    41683.0    1  1 1973       12
    42048.0    1  1 1974       13
    42413.0    1  1 1975       14
    42778.0    1  1 1976       15
    43144.0    1  1 1977       16
    43509.0    1  1 1978       17
    43874.0    1  1 1979       18
    44239.0    1  1 1980       19
    44786.0    1  7 1981       20
    45151.0    1  7 1982       21
    45516.0    1  7 1983       22
    46247.0    1  7 1985       23
    47161.0    1  1 1988       24
    47892.0    1  1 1990       25
    48257.0    1  1 1991       26
    48804.0    1  7 1992       27
    49169.0    1  7 1993       28
    49534.0    1  7 1994       29
    50083.0    1  1 1996       30
    50630.0    1  7 1997       31
    51179.0    1  1 1999       32
    53736.0    1  1 2006       33
    54832.0    1  1 2009       34
    56109.0    1  7 2012       35
    57204.0    1  7 2015       36
    57754.0    1  1 2017       37
)--";


int main(int argc, char* argv[])
{
    int ecode = 0;

    if (argc < 2) {
        std::cerr << "Usage: " << argv[0] << " bulletinA-filename\n";
        exit(1);
    }

    std::ifstream ist(argv[1]);
    if (!ist) {
        std::cerr << "Invalid filename!\n";
        exit(1);
    }

    bool ok = mcc::astro::mcc_parse_bulletinA(ist);

    if (!ok) {
        std::cout << "Cannot parse input IERS Bulletin A file!\n";
        ecode = 1;
    } else {
        std::cout << "IERS Bulletin A data:\n";
        std::cout << "Date: " << mcc::astro::CURRENT_EARTH_ORIENT_DB.bulletinDate << "\n";
        for (auto& el : mcc::astro::CURRENT_EARTH_ORIENT_DB.db) {
            std::cout << "MJD: " << el.mjd << "\tDUT1 = " << el.dut1 << "\n";
        }
    }

    ist.close();

    std::cout << "\n\n\n";

    std::istringstream isst(leap_secs_file);
    ok = mcc::astro::mcc_parse_leapsecs(isst);

    if (!ok) {
        std::cout << "Cannot parse input IERS leap seconds file!\n";
        ecode = 1;
    } else {
        std::cout << "IERS leap seconds data:\n";
        for (auto& el : mcc::astro::CURRENT_LEAPSECONDS_DB) {
            std::cout << "MJD: " << el.mjd << "\tTAI-UTC = " << el.tai_utc << "\n";
        }
    }

    return ecode;
}