using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using MongoDB.Bson;
using MongoDB.Bson.IO;
using MongoDB.Driver;

namespace TestGeospaticalHaystackIndexing {
    public static class Program {
        public static void Main(string[] args) {
            try {
                var server = MongoServer.Create("mongodb://localhost/?safe=true");
                var database = server["test"];
                var foo = database["foo"];
                foo.Drop();

                foo.Insert(new BsonDocument {
                    { "pos", new BsonDocument { { "long", 34.2 }, { "lat", 33.3 } } },
                    { "type", "restaurant" }
                });
                foo.Insert(new BsonDocument {
                    { "pos", new BsonDocument { { "long", 34.2 }, { "lat", 37.3 } } },
                    { "type", "restaurant" }
                });
                foo.Insert(new BsonDocument {
                    { "pos", new BsonDocument { { "long", 59.1 }, { "lat", 87.2 } } },
                    { "type", "office" }
                });

                var keys = new IndexKeysDocument {
                    { "pos", "geoHaystack" },
                    { "type", 1 }
                };
                var options = new IndexOptionsDocument {
                    { "bucketSize", 1 }
                };
                foo.EnsureIndex(keys, options);

                var command = new CommandDocument {
                    { "geoSearch", "foo" },
                    { "near", new BsonArray { 33, 33 } },
                    { "maxDistance", 6 },
                    { "search", new BsonDocument { { "type", "restaurant" } } },
                    { "limit", 30 }
                };
                var result = database.RunCommand(command);
                Console.WriteLine(result.Response.ToJson(new JsonWriterSettings { Indent = true }));
            } catch (Exception ex) {
                Console.WriteLine("Unhandled exception:");
                Console.WriteLine(ex);
            }

            Console.WriteLine("Press Enter to continue");
            Console.ReadLine();
        }
    }
}