// function name: armatak_fnc_draw_polyline
// function author: Valmo
// function description: Sends an ATAK Drawing Tools freeform line or polygon CoT.
//
// Arguments:
// 0: Positions or objects <ARRAY>
// 1: Callsign/title <STRING> (default: "ArmaTAK Line")
// 2: Closed polygon <BOOL> (default: false)
// 3: Stale time in seconds <NUMBER> (default: 86400)
// 4: Stroke color as signed ARGB int <NUMBER> (default: -1)
// 5: Fill color as signed ARGB int <NUMBER> (default: -1761607681)
// 6: Stroke weight <NUMBER> (default: 3)
// 7: Stroke style <STRING> (default: "solid")
// 8: MilSym SIDC for tactical overlay <STRING> (default: "")
// 9: CoT type <STRING> (default: "u-d-f")
// 10: Optional registration scope <STRING> (default: "")
//
// Example:
// [[pos player, screenToWorld [0.5, 0.5]], "Phase Line Blue"] call armatak_fnc_draw_polyline;
//
// Public: Yes

params [
	["_points", [], [[]]],
	["_callsign", "ArmaTAK Line", [""]],
	["_closed", false, [true]],
	["_staleSeconds", 86400, [0]],
	["_strokeColor", -1, [0]],
	["_fillColor", -1761607681, [0]],
	["_strokeWeight", 3, [0]],
	["_strokeStyle", "solid", [""]],
	["_milsym", "", [""]],
	["_cotType", "u-d-f", [""]],
	["_scope", "", [""]]
];

if ((count _points) < 2) exitWith {""};

private _pointStrings = [];
private _center = [];

{
	private _position = if (_x isEqualType objNull) then {
		getPos _x
	} else {
		_x
	};

	if ((count _position) >= 2) then {
		private _altitude = _position param [2, 0, [0]];
		private _realLocation = [_position select 0, _position select 1, _altitude] call armatak_client_fnc_convertClientLocation;
		_pointStrings pushBack format ["%1,%2,%3", _realLocation select 0, _realLocation select 1, _realLocation select 2];

		if (_center isEqualTo []) then {
			_center = _realLocation;
		};
	};
} forEach _points;

if ((count _pointStrings) < 2) exitWith {""};

private _uuid = "armatak" callExtension ["uuid", []] select 0;
private _payload = [
	_uuid,
	_cotType,
	_center select 0,
	_center select 1,
	_center select 2,
	_pointStrings joinString ";",
	_callsign,
	_staleSeconds max 1,
	_strokeColor,
	_fillColor,
	_strokeWeight max 1,
	_strokeStyle,
	_closed,
	_milsym
];

"armatak" callExtension ["tcp_socket:draw:free", [_payload]];
[_scope, _uuid, _cotType, _center select 0, _center select 1, _center select 2] call armatak_fnc_register_cot;

_uuid