/// <summary>
/// Returns a list of locations that match the search criteria.
/// Those locations added by website moderators and the current user are searched.Locations are sorted by increasing distance from the initial search point.
/// </summary>
/// <param name="coords">Geographical coordinates and radius.</param>
/// <param name="query">Search query string.</param>
/// <param name="cityId">City ID.</param>
/// <param name="count">Number of locations to return.</param>
/// <param name="offset">Offset needed to return a specific subset of locations.</param>
/// <returns>Returns a <see cref="List{T}"/> of <see cref="Place"/> objects.</returns>
public async Task<Response<ItemsList<Place>>> Search(Coordinates coords, string query = null, int? cityId = null,
int count = 30, int offset = 0) => await Request<ItemsList<Place>>("search", new MethodParams
{
{"q", query},
{"latitude", coords?.Latitude, true},
{"longitude", coords?.Longitude, true},
{"radius", coords?.Radius},
{"city", cityId},
{"count", count, false, new[] {0, 1000}},
{"offset", offset}
});
/// <summary>
/// Adds a new location to the location database.
/// Created locations will be shown in search by locations only for the user who added it.
/// </summary>
/// <param name="title">Title of the location. </param>
/// <param name="coords">Geographical coordinates.</param>
/// <param name="typeId">ID of the location's type (e.g., 1 — Home, 2 — Work). To get location type IDs, use the <see cref="GetTypes"/> method.</param>
/// <param name="countryId">ID of the location's country. To get country IDs, use the <see cref="DatabaseMethods.GetCountries(bool,string,int?,int)"/> method. </param>
/// <param name="cityId">ID of the location's city. To get city IDs, use the <see cref="DatabaseMethods.GetCities"/> method.</param>
/// <param name="address">Street address of the location (e.g., 125 Elm Street).</param>
/// <returns>Returns the ID of the created location.</returns>
public async Task<Response<int>> Add(string title, Coordinates coords, int? typeId = null, int? countryId = null,
int? cityId = null, string address = null) => await Request<int>("add", new MethodParams
{
{"title", title, true},
{"type", typeId},
{"latitude", coords?.Latitude, true},
{"longitude", coords?.Longitude, true},
{"city", cityId},
{"country", countryId},
{"address", address}
}, false, "id");
/// <summary>
/// Indexes user's current location and returns a list of users who are located near.
/// </summary>
/// <param name="coords">Geographical coordinates including <see cref="Coordinates.Radius"/> and <see cref="Coordinates.Accuracy"/>.</param>
/// <param name="timeout">Time when a user disappears from location search results, in seconds.</param>
/// <param name="fields">List of additional fields to return.</param>
/// <param name="nameCase">Case for declension of user name and surname.</param>
/// <returns>Returns a <see cref="List{T}"/> of <see cref="User"/> objects.</returns>
public async Task<Response<ItemsList<User>>> GetNearby(Coordinates coords, int timeout = 7200,
List<UserProfileFields> fields = null, NameCases nameCase = NameCases.Nominative)
=> await Request<ItemsList<User>>("getNearby", new MethodParams
{
{"latitude", coords?.Latitude, true},
{"longitude", coords?.Longitude, true},
{"radius", coords?.Radius},
{"accuracy", coords?.Accuracy},
{"timeout", timeout},
{"name_case", ToEnumString(nameCase)},
{"fields", fields}
});
/// <summary>
/// Checks a user in at the specified location.
/// </summary>
/// <param name="placeId">Location ID. </param>
/// <param name="coords">Geographical coordinates.</param>
/// <param name="text">Text of the comment on the check-in (255 characters maximum; line breaks not supported). </param>
/// <param name="friendsOnly">True - Check-in will be available only for friends. False — Check-in will be available for all users(default).</param>
/// <param name="services">List of services or websites (e.g., twitter, facebook) to which the check-in will be exported, if the user has set up the respective option.</param>
/// <returns></returns>
public async Task<Response<int>> Checkin(int placeId, Coordinates coords = null, string text = null,
bool friendsOnly = false, List<Services> services = null) => await Request<int>("checkin", new MethodParams
{
{"place_id", placeId, true},
{"text", text?.Substring(0, 255)},
{"latitude", coords?.Latitude},
{"longitude", coords?.Longitude},
{"friends_only", friendsOnly},
{"services", services}
});