###

# Not Yet Implemented: just draw a warnig box during 3 seconds

var nyi = func (x) { gui.popupTip(x ~ ': not yet implemented', 3) }

###

# print message in terminal

var msg = func (str) { print('ZKV1000 >> ', str) }

###

# print message in popup

var msg_popup = func (str...) { gui.popupTip("ZKV1000\n" ~ str, 3) }

###

# just do nothing

var void = func { }

var alt = vs = vs_abs = ias = tas = pitch = roll = agl = stall = rpm = 0;

var getData = func {

    alt = math.abs(getprop('/instrumentation/altimeter/indicated-altitude-ft'));

    vs = getprop('/velocities/vertical-speed-fps') * 60; 

    ias = getprop('/instrumentation/airspeed-indicator/indicated-speed-kt');

    pitch = getprop('/orientation/pitch-deg');

    roll = getprop('/orientation/pitch-deg');

    agl = getprop('/position/altitude-agl-ft');

    stall = getprop('/sim/alarms/stall-warning');

    gear = getprop('/controls/gears/gear');

}

###

# returns DMS coordinates

# d is decimal longitude or latitude

# c should be one of E, W, S or N

# inspired from FG source: $FGSRC/src/Main/fg_props.cxx 

var DMS = func (d, c) {

    var deg = min = sec = 0.0;

    d = abs(d);

    deg = d + 0.05 / 3600;

    min = (deg - int(deg)) * 60;

    sec = (min - int(min)) * 60 - 0.049;

    return sprintf('%d %02d %04.1f %s', int(deg), int(min), abs(sec), c);

}

var time = {

    GMT : func {

        data.time = getprop('/sim/time/gmt-string');

    },

    UTC : func {

        data.time = sprintf('%02i:%02i:%02i',

                    getprop('/sim/time/utc/hour'),

                    getprop('/sim/time/utc/minute'),

                    getprop('/sim/time/utc/second'));

    },

    LCL : func {

        var utc_hour = getprop('/sim/time/utc/hour') + (getprop('/sim/time/local-offset') / 3600);

        if (utc_hour > 23) utc_hour -= 24;

        if (utc_hour < 0)  utc_hour += 24;

        data.time = sprintf('%02i:%02i:%02i',

                    utc_hour,

                    getprop('/sim/time/utc/minute'),

                    getprop('/sim/time/utc/second'));

    },

    RL : func {

        data.time = sprintf('%02i:%02i:%02i',

                    getprop('/sim/time/real/hour'),

                    getprop('/sim/time/real/minute'),

                    getprop('/sim/time/real/second'));

    },

};

# returns time + d (is seconds) formated HH:MM:SS

var HMS = func (hh, mm, ss, d = 0) {

    ss += d;

    if (ss > 59) {

        ss -= 60;

        mm += 1;

        if (mm > 59) {

            mm = 0;

            hh += 1;

        }

    }

    elsif (ss < 0) {

        if (mm > 0) {

            ss += 60;

            mm -= 1;

        }

        elsif (mm == 0 and hh > 0) {

            ss += 60;

            mm = 59;

            hh -= 1;

        }

        elsif (mm == 0 and hh == 0)

            ss = 0;

    }

    return sprintf('%02i:%02i:%02i', hh, mm, ss);

}