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

using SqlKata;

namespace PluralKit.Core
{
    public interface IDatabase
    {
        Task ApplyMigrations();
        Task<IPKConnection> Obtain();
        Task Execute(Func<IPKConnection, Task> func);
        Task<T> Execute<T>(Func<IPKConnection, Task<T>> func);
        IAsyncEnumerable<T> Execute<T>(Func<IPKConnection, IAsyncEnumerable<T>> func);
        Task<int> ExecuteQuery(Query q, string extraSql = "", [CallerMemberName] string queryName = "");
        Task<int> ExecuteQuery(IPKConnection? conn, Query q, string extraSql = "", [CallerMemberName] string queryName = "");
        Task<T> QueryFirst<T>(Query q, string extraSql = "", [CallerMemberName] string queryName = "");
        Task<T> QueryFirst<T>(IPKConnection? conn, Query q, string extraSql = "", [CallerMemberName] string queryName = "");
        Task<IEnumerable<T>> Query<T>(Query q, [CallerMemberName] string queryName = "");
        IAsyncEnumerable<T> QueryStream<T>(Query q, [CallerMemberName] string queryName = "");
        Task<T> QuerySingleProcedure<T>(string queryName, object param);
        Task<IEnumerable<T>> QueryProcedure<T>(string queryName, object param);
    }
}