/*
 * Author: Glowbal
 * Updates the vitals. Is expected to be called every second.
 *
 * Arguments:
 * 0: The Unit <OBJECT>
 *
 * ReturnValue:
 * <NIL>
 *
 * Public: No
 */

#include "script_component.hpp"

private ["_unit", "_heartRate","_bloodPressure","_bloodVolume","_painStatus", "_lastTimeValuesSynced", "_syncValues"];
_unit = _this select 0;

_lastTimeValuesSynced = _unit getvariable [QGVAR(lastMomentValuesSynced), 0];
_syncValues = time - _lastTimeValuesSynced >= (10 + floor(random(10)));
if (_syncValues) then {
    _unit setvariable [QGVAR(lastMomentValuesSynced), time];
};

_bloodVolume = (_unit getvariable [QGVAR(bloodVolume), 0]) + ([_unit] call FUNC(getBloodVolumeChange));
if (_bloodVolume <= 0) then {
    _bloodVolume = 0;
};
_unit setvariable  [QGVAR(bloodVolume), _bloodVolume, _syncValues];

// Set variables for synchronizing information across the net
if (_bloodVolume < 90) then {
    if !(_unit getvariable [QGVAR(hasLostBlood), false]) then {
        _unit setvariable [QGVAR(hasLostBlood), true, true];
    };
} else {
    if (_unit getvariable [QGVAR(hasLostBlood),false]) then {
        _unit setvariable [QGVAR(hasLostBlood), false, true];
    };
};

if ((_unit call FUNC(getBloodLoss)) > 0) then {
    if !(_unit getvariable [QGVAR(isBleeding), false]) then {
        _unit setvariable [QGVAR(isBleeding), true, true];
    };
} else {
    if (_unit getvariable [QGVAR(isBleeding), false]) then {
        _unit setvariable [QGVAR(isBleeding), false, true];
    };
};

_painStatus = _unit getvariable [QGVAR(pain), 0];
if (_painStatus > 0) then {
    if !(_unit getvariable [QGVAR(hasPain), false]) then {
        _unit setvariable [QGVAR(hasPain), true, true];
    };
} else {
    if (_unit getvariable [QGVAR(hasPain), false]) then {
        _unit setvariable [QGVAR(hasPain), false, true];
    };
};


if (_bloodVolume < 30) exitwith {
    [_unit] call FUNC(setDead);
};

if ([_unit] call EFUNC(common,isAwake)) then {
    if (_bloodVolume < 60) then {
        if (random(1) > 0.9) then {
            [_unit] call FUNC(setUnconscious);
        };
    };
};

// handle advanced medical, with vitals
if (GVAR(level) >= 2) then {

    // Set the vitals
    _heartRate = (_unit getvariable [QGVAR(heartRate), 0]) + ([_unit] call FUNC(getHeartRateChange));
    _unit setvariable  [QGVAR(heartRate), _heartRate, _syncValues];

    _bloodPressure = [_unit] call FUNC(getBloodPressure);
    _unit setvariable  [QGVAR(bloodPressure), _bloodPressure, _syncValues];

    // Handle airway
    if (GVAR(setting_allowAirwayInjuries)) then {
        _airwayStatus = _unit getvariable [QGVAR(airwayStatus), 100];
        if (((_unit getvariable [QGVAR(airwayOccluded), false]) || (_unit getvariable [QGVAR(airwayCollapsed), false])) && !((_unit getvariable [QGVAR(airwaySecured), false]))) then {
            if (_airwayStatus >= 0.5) then {
                _unit setvariable [QGVAR(airwayStatus), _airwayStatus - 0.5, _syncValues];
            };
        } else {
            if !((_unit getvariable [QGVAR(airwayOccluded), false]) || (_unit getvariable [QGVAR(airwayCollapsed), false])) then {
                if (_airwayStatus < 100) then {
                    _unit setvariable [QGVAR(airwayStatus), (_airwayStatus + 1.5) min 100, _syncValues];
                };
            };
        };
        if (_airwayStatus < 80) then {
            [_unit] call FUNC(setUnconscious);
            if (_airwayStatus <= 0) then {
                [_unit, true] call FUNC(setDead);
            };
        };
    };

    // Check vitals for medical status
    // TODO check for in revive state instead of variable
    // TODO Implement cardiac arrest.
  _bloodPressureL = _bloodPressure select 0;
    _bloodPressureH = _bloodPressure select 1;

    if (!(_unit getvariable [QGVAR(inCardiacArrest),false])) then {
        if (_heartRate < 10 || _bloodPressureH < 30 || _bloodVolume < 20) then {
            [_unit] call FUNC(setUnconscious); // safety check to ensure unconsciousness for units if they are not dead already.
        };

        if (_bloodPressureH > 260) then {
            if (random(1) > 0.7) then {
                [_unit] call FUNC(setCardiacArrest);
            };
        };
        if (_bloodPressureL < 40 && _heartRate > 190) then {
            if (random(1) > 0.7) then {
                [_unit] call FUNC(setCardiacArrest);
            };
        };
        if (_bloodPressureH > 145 && _heartRate > 150) then {
            if (random(1) > 0.7) then {
                [_unit] call FUNC(setCardiacArrest);
            };
        };
        if (_heartRate > 200) then {
            [_unit] call FUNC(setCardiacArrest);
        };

        if (_heartRate < 20) then {
            [_unit] call FUNC(setCardiacArrest);
        };
    };
};