using System.Collections.Generic;
using System.Threading.Tasks;

using Dapper;

using NodaTime;

namespace PluralKit.Core
{
    public partial class ModelRepository
    {
        public Task<IEnumerable<PKShardInfo>> GetShards() =>
            _db.Execute(conn => conn.QueryAsync<PKShardInfo>("select * from shards order by id"));

        public Task SetShardStatus(IPKConnection conn, int shard, PKShardInfo.ShardStatus status) =>
            conn.ExecuteAsync(
                "insert into shards (id, status) values (@Id, @Status) on conflict (id) do update set status = @Status",
                new { Id = shard, Status = status });

        public Task RegisterShardHeartbeat(IPKConnection conn, int shard, Duration ping) =>
            conn.ExecuteAsync(
                "insert into shards (id, last_heartbeat, ping) values (@Id, now(), @Ping) on conflict (id) do update set last_heartbeat = now(), ping = @Ping",
                new { Id = shard, Ping = ping.TotalSeconds });

        public Task RegisterShardConnection(IPKConnection conn, int shard) =>
            conn.ExecuteAsync(
                "insert into shards (id, last_connection) values (@Id, now()) on conflict (id) do update set last_connection = now()",
                new { Id = shard });
    }
}