using Dapper;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SQLite;
using System.Diagnostics;
using System.Linq;

namespace CryptoCalc
{
    public class DBInteraction<T> where T : DBClasses
    {
        public void SaveData(T data)
        {
            if (data is null)
            {
                throw new ArgumentNullException(nameof(data), "No data passed to SQL");
            }

            using IDbConnection _connection = new SQLiteConnection(Util.GetConnectionString(data.DBName));
            string query = $"insert into {data.DBTableName} {data.DBSaveDataString}";
            _connection.Execute(query, data);
            Debug.WriteLine($"Saved data - DB: {data.DBName} - Table: {data.DBTableName} - Query: {query}");
        }

        public void ExecuteQuery(T data, string query)
        {
            if (query is null)
            {
                throw new ArgumentNullException(nameof(query), "No query entered");
            }

            using IDbConnection _connection = new SQLiteConnection(Util.GetConnectionString(data.DBName));
            _connection.Execute($"{query}");
            Debug.WriteLine($"Executed query - DB: {data.DBName} - Query: {query}");
        }

        public IEnumerable<T> ReturnQuery(T data, string query)
        {
            if (data is null)
            {
                throw new ArgumentNullException(nameof(data), "DBclass is null");
            }

            using IDbConnection _connection = new SQLiteConnection(Util.GetConnectionString(data.DBName));
            IEnumerable<T> output = _connection.Query<T>($"{query}", new DynamicParameters());
            Debug.WriteLine($"Executed query - DB: {data.DBName} - Query: {query}");
            
            return output;
        }
    }
}