syntax = "proto3";
package dcs.common.v0;
option csharp_namespace = "RurouniJones.Dcs.Grpc.V0.Common";
option go_package = "github.com/DCS-gRPC/go-bindings/dcs/v0/common";

/**
 * The category the object belongs to
 *
 * All DCS objects are one of the following categories. Unlike many other
 * enums created by DCS, this one is not 0 indexed. Therefore we do not
 * need to do any modification of the value by incrementing it by one to
 * make it work with gRPC and DCS.
 *
 * See https://wiki.hoggitworld.com/view/DCS_Class_Object for more information
 */
enum ObjectCategory {
  OBJECT_CATEGORY_UNSPECIFIED = 0;
  OBJECT_CATEGORY_UNIT = 1;
  OBJECT_CATEGORY_WEAPON = 2;
  OBJECT_CATEGORY_STATIC = 3;
  OBJECT_CATEGORY_SCENERY = 4;
  OBJECT_CATEGORY_BASE = 5;
  OBJECT_CATEGORY_CARGO = 6;
}

/**
 * The category the object belongs to
 *
 * Some of these are less than obvious. For example an oilrig counts as a
 * HELIPAD airfield.
 */
enum AirbaseCategory {
  AIRBASE_CATEGORY_UNSPECIFIED = 0;
  AIRBASE_CATEGORY_AIRDROME = 1;
  AIRBASE_CATEGORY_HELIPAD = 2;
  AIRBASE_CATEGORY_SHIP = 3;
}

/**
 * Coalitions in DCS
 *
 * The coalitions supported by DCS. The NEUTRAL coalition is a relatively new
 * one and may not be as supported as the belligerant ones.
 */
enum Coalition {
  // protolint:disable:next ENUM_FIELD_NAMES_ZERO_VALUE_END_WITH
  COALITION_ALL = 0;
  COALITION_NEUTRAL = 1;
  COALITION_RED = 2;
  COALITION_BLUE = 3;
}

/**
 * Countries in DCS
 *
 * Every country belongs to a coalition and this association is set per mission.
 * The values of these enums are correct such that they will work with DCS
 * however the text names have been Made to follow gRPC conventions to to aid
 * in language bindings and acronyms have been replaced with their full english
 * names to aid in recognition. In some cases this can be a big change
 * (e.g. USSR -> Soviet Union).
 *
 * We have also added a dummy value for the missing enum value 14 to prevent
 * possible issues in the various language bindings
 *
 * See https://wiki.hoggitworld.com/view/DCS_enum_country for more information
 */
enum Country {
  COUNTRY_UNSPECIFIED = 0;
  COUNTRY_RUSSIA = 1;
  COUNTRY_UKRAINE = 2;
  COUNTRY_UNITED_STATES_OF_AMERICA = 3;
  COUNTRY_TURKEY = 4;
  COUNTRY_UNITED_KINGDOM = 5;
  COUNTRY_FRANCE = 6;
  COUNTRY_GERMANY = 7;
  COUNTRY_AGGRESSORS = 8;
  COUNTRY_CANADA = 9;
  COUNTRY_SPAIN = 10;
  COUNTRY_THE_NETHERLANDS = 11;
  COUNTRY_BELGIUM = 12;
  COUNTRY_NORWAY = 13;
  COUNTRY_DENMARK = 14;
  COUNTRY_UNUSED = 15;
  COUNTRY_ISRAEL = 16;
  COUNTRY_GEORGIA = 17;
  COUNTRY_INSURGENTS = 18;
  COUNTRY_ABKHAZIA = 19;
  COUNTRY_SOUTH_OSETIA = 20;
  COUNTRY_ITALY = 21;
  COUNTRY_AUSTRALIA = 22;
  COUNTRY_SWITZERLAND = 23;
  COUNTRY_AUSTRIA = 24;
  COUNTRY_BELARUS = 25;
  COUNTRY_BULGARIA = 26;
  COUNTRY_CZECH_REPUBLIC = 27;
  COUNTRY_CHINA = 28;
  COUNTRY_CROATIA = 29;
  COUNTRY_EGYPT = 30;
  COUNTRY_FINLAND = 31;
  COUNTRY_GREECE = 32;
  COUNTRY_HUNGARY = 33;
  COUNTRY_INDIA = 34;
  COUNTRY_IRAN = 35;
  COUNTRY_IRAQ = 36;
  COUNTRY_JAPAN = 37;
  COUNTRY_KAZAKHSTAN = 38;
  COUNTRY_NORTH_KOREA = 39;
  COUNTRY_PAKISTAN = 40;
  COUNTRY_POLAND = 41;
  COUNTRY_ROMANIA = 42;
  COUNTRY_SAUDI_ARABIA = 43;
  COUNTRY_SERBIA = 44;
  COUNTRY_SLOVAKIA = 45;
  COUNTRY_SOUTH_KOREA = 46;
  COUNTRY_SWEDEN = 47;
  COUNTRY_SYRIA = 48;
  COUNTRY_YEMEN = 49;
  COUNTRY_VIETNAM = 50;
  COUNTRY_VENEZUELA = 51;
  COUNTRY_TUNISIA = 52;
  COUNTRY_THAILAND = 53;
  COUNTRY_SUDAN = 54;
  COUNTRY_PHILIPPINES = 55;
  COUNTRY_MOROCCO = 56;
  COUNTRY_MEXICO = 57;
  COUNTRY_MALAYSIA = 58;
  COUNTRY_LIBYA = 59;
  COUNTRY_JORDAN = 60;
  COUNTRY_INDONESIA = 61;
  COUNTRY_HONDURAS = 62;
  COUNTRY_ETHIOPIA = 63;
  COUNTRY_CHILE = 64;
  COUNTRY_BRAZIL = 65;
  COUNTRY_BAHRAIN = 66;
  COUNTRY_THIRDREICH = 67;
  COUNTRY_YUGOSLAVIA = 68;
  COUNTRY_SOVIET_UNION = 69;
  COUNTRY_ITALIAN_SOCIAL_REPUBLIC = 70;
  COUNTRY_ALGERIA = 71;
  COUNTRY_KUWAIT = 72;
  COUNTRY_QATAR = 73;
  COUNTRY_OMAN = 74;
  COUNTRY_UNITED_ARAB_EMIRATES = 75;
  COUNTRY_SOUTH_AFRICA = 76;
  COUNTRY_CUBA = 77;
  COUNTRY_PORTUGAL = 78;
  COUNTRY_GERMAN_DEMOCRATIC_REPUBLIC = 79;
  COUNTRY_LEBANON = 80;
  COUNTRY_COMBINED_JOINT_TASK_FORCE_BLUE = 81;
  COUNTRY_COMBINED_JOINT_TASK_FORCE_RED = 82;
  COUNTRY_UNITED_NATIONS_PEACEKEEPERS = 83;
  COUNTRY_ARGENTINA = 84;
  COUNTRY_CYPRUS = 85;
  COUNTRY_SLOVENIA = 86;
}

/**
 * Position of an object in DCS
 *
 * Latitude and Longitude are in Decimal Degrees format (e.g. 41.33 / 37.21).
 * Negative values are used for West of the meridian and south of the equator
 *
 * Altitude is given in meters above Mean Sea Level (MSL) and can be a decimal
 * value.
 */
message Position {
  // Latitude in Decimal Degrees format
  double lat = 1;
  // Longitude in Decimal Degrees format
  double lon = 2;
  // Altitude in Meters above Mean Sea Level (MSL)
  double alt = 3;
  // Distance between DCS' map origin to object in meters on west-east axis.
  double u = 4;
  // Distance between DCS' map origin to object in meters on north-south axis.
  double v = 5;
}

/**
 * Position used in requests to DCS-gRPC.
 *
 * Latitude and Longitude are in Decimal Degrees format (e.g. 41.33 / 37.21).
 * Negative values are used for West of the meridian and south of the equator.
 *
 * Altitude is given in meters above Mean Sea Level (MSL) and can be a decimal
 * value.
 */
message InputPosition {
  // Latitude in Decimal Degrees format
  double lat = 1;
  // Longitude in Decimal Degrees format
  double lon = 2;
  // Altitude in Meters above Mean Sea Level (MSL)
  double alt = 3;
}

/**
 * This type is returned if an object category cannot be determined
 *
 * The base object includes the `getName()` function so even for an unknown type
 * we _should_ be able to get the name
 */
message Unknown {
  string name = 1;
}

/**
 * An instance of a DCS Unit
 *
 * A unit is an "active" unit in a DCS mission. This means it has an attached AI
 * that moves and shoots. Units include aircraft, ground units, ships, weapons
 * etc.
 */
message Unit {
  // The DCS generated ID
  uint32 id = 1;
  // The name of the unit as assigned in the mission editor
  string name = 2;
  // The DCS assigned callsign if one exists. e.g. "Enfield 11"
  string callsign = 3;
  // The coalition the unit belongs to
  Coalition coalition = 4;
  // The DCS type-name of the unit. e.g "MiG-29A", "ZSU_57_2" or "Hawk ln"
  string type = 5;
  // The position of the unit
  Position position = 6;
  // The orientation of the unit in both 2D and 3D space
  Orientation orientation = 7;
  // The velocity of the unit in both 2D and 3D space
  Velocity velocity = 8;
  // The name of the player if one is in control of the unit
  optional string player_name = 9;
  // The group that the unit belongs to
  Group group = 10;
  // The number of this unit in the group. Does not change as units are
  // destroyed
  uint32 number_in_group = 11;
}

/**
 * An instance of a DCS group
 */
message Group {
  uint32 id = 1;    // The DCS generated ID
  string name = 2;  // The name of the group as assigned in the mission editor
  Coalition coalition = 3;     // The coalition of the group
  GroupCategory category = 4;  // The group category.
  uint32 frequency = 5;
  uint32 modulation = 6;
}

/**
 * Group category enumerator.
 */
enum GroupCategory {
  GROUP_CATEGORY_UNSPECIFIED = 0;
  GROUP_CATEGORY_AIRPLANE = 1;
  GROUP_CATEGORY_HELICOPTER = 2;
  GROUP_CATEGORY_GROUND = 3;
  GROUP_CATEGORY_SHIP = 4;
  GROUP_CATEGORY_TRAIN = 5;
}

/**
 * An instance of a DCS weapon
 *
 * These weapons include everything from autocannon HE shells up to massive
 * ship-killer missiles
 */
message Weapon {
  // The DCS generated ID
  uint32 id = 1;
  // The DCS type-name of the weapon. e.g "Matra_S530D", "HAWK_RAKETA" or
  // "weapons.shells.53-UOR-281U"
  string type = 2;
  // The position of the Weapon
  Position position = 3;
  // The orientation of the unit in both 2D and 3D space
  Orientation orientation = 4;
  // The velocity of the unit in both 2D and 3D space
  Velocity velocity = 5;
}

/**
 * An instance of a DCS static object
 *
 * These objects are often buildings but can also be vehicles that have no AI or
 * other game behaviour aside from being destroyable
 */
message Static {
  // The DCS generated ID
  uint32 id = 1;
  // The DCS type-name of the static
  string type = 2;
  // The name of the static
  string name = 3;
  // The coalition the static belongs to
  Coalition coalition = 4;
  // The position of the static
  Position position = 5;
}

/**
 * An instance of a DCS scenery object
 */
message Scenery {
  // The id of the scenery
  uint32 id = 1;
  // The DCS type-name of the scenery
  string type = 2;
  // The position of the scenery
  Position position = 3;
}

/**
 * An instance of a DCS Airfield
 *
 */
message Airbase {
  // Information about the unit, if the airbase is one (e.g. in case of a
  // carrier).
  optional Unit unit = 1;
  // TODO: Fill this in
  string name = 2;
  // TODO: Fill this in
  string callsign = 3;
  // The coalition the unit belongs to. This can change mid-mission if an
  // airfield is captured
  Coalition coalition = 4;
  // The position of the center point of the airfield.
  Position position = 6;
  // What category the airfield belongs to.
  AirbaseCategory category = 7;
  // TODO: Fill this in
  string display_name = 8;
}

/**
 * An instance of a DCS Cargo object
 */
message Cargo {
}

/*
 * The initiator of an event
 *
 * The initiator of an event. For things like shooting events it is usually a
 * vehicle but it can be almost anything depending on the event
 */
message Initiator {
  oneof initiator {
    Unknown unknown = 1;
    Unit unit = 2;
    Weapon weapon = 3;
    Static static = 4;
    Scenery scenery = 5;
    Airbase airbase = 6;
    Cargo cargo = 7;
  }
}

/*
 * The target of an event
 *
 * The target of an event. For things like shooting events it is usually a
 * vehicle but it can be almost anything depending on the event
 */
message Target {
  oneof target {
    Unknown unknown = 1;
    Unit unit = 2;
    Weapon weapon = 3;
    Static static = 4;
    Scenery scenery = 5;
    Airbase airbase = 6;
    Cargo cargo = 7;
  }
}

/*
 * A MarkPanel
 *
 * A MarkPanel visible on the F10 map. These can be used for reference by
 * players but can also be used by things like Jester for setting waypoints
 */
message MarkPanel {
  // The id of the mark panel.
  uint32 id = 1;
  // The time in seconds relative to the mission start the mark got created.
  double time = 2;
  // The unit of the player that created the mark. Not set if the player isn't
  // controlling any unit anymore (disconnected, spectator, game master, ...).
  optional Unit initiator = 3;
  // If set, the mark is only visible for the specified coalition.
  optional Coalition coalition = 4;
  // The ID of the group the player was in when creating the mark panel. This
  // will still be set even if the player isn't controlling the unit in that
  // group anymore.
  optional uint32 group_id = 5;
  // The text content of the mark.
  optional string text = 6;
  // The position of the mark.
  Position position = 7;
}

/**
 * A vector in a right-handed coordinate system where +x is north, -x south, +z
 * is east, -z west, +y up and -y down.
 */
message Vector {
  double x = 1;
  double y = 2;
  double z = 3;
}

/**
 * The orientation of an object in 3D space.
 */
message Orientation {
  // The heading the nose of the object points to on a flat world.
  double heading = 1;
  // Yaw in degrees - clockwise relative to the true north (this is similar to
  // the heading, just corrected by the projection error when going from a flat
  // to a spherical world).
  double yaw = 2;
  // Pitch in degrees - positive when taking-off.
  double pitch = 3;
  // Roll in degrees - positive when rolling the aircraft to the right.
  double roll = 4;
  // The normalized direction the object is pointing to.
  Vector forward = 5;
  // The normalized direction the three line (right wing) is pointing to.
  Vector right = 6;
  // The normalized up vector (orthogonal to forward and right).
  Vector up = 7;
}

/**
 * The orientation of an object in 3D space.
 */
message Velocity {
  // The heading the object is moving to (use `orientation.heading` to get the
  // heading the nose is pointing to).
  double heading = 1;
  // The horizontal speed of the unit. If it is doing mach one straight up then
  // the speed will be 0
  double speed = 2;
  // The direction the object is traveling to, and speed (magnitude of the
  // vector) the object is traveling with.
  Vector velocity = 3;
}

/**
 * An instance of a contact in a DCS AI controller's detection table
 *
 * This is a target that the AI controller has detected and is actively tracking
 *
 */
message Contact {
  // The DCS generated ID
  uint32 id = 1;
  // Can the sensor see the contact
  bool visible = 2;
  // Does the controller know the distance to the contact?
  bool distance = 3;

  // Either the basic information, or Unit or Weapon export object
  oneof target {
    Unknown object = 4;
    Unit unit = 5;
    Weapon weapon = 6;
  }
}