using Dapper;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Npgsql;
using ProjectFamilyBudget.Entities;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ProjectFamilyBudget.Repositories.Implementations;

public class PeopleExpenseRepository : IPeopleExpense
{
    private readonly IConnectionString _connectionString;
    private readonly ILogger<PeopleExpenseRepository> _logger;
    public PeopleExpenseRepository(IConnectionString connectionString, ILogger<PeopleExpenseRepository> logger)
    {
        _connectionString = connectionString;
        _logger = logger;
    }
    public void CreatePeopleExpense(PeopleExpense peopleExpense)
    {
        _logger.LogInformation("Добавление объекта");
        _logger.LogDebug("Объект: {json}",
        JsonConvert.SerializeObject(peopleExpense));

        try
        {
            using var connection = new
            NpgsqlConnection(_connectionString.ConnectionString);
            connection.Open();
            using var transaction = connection.BeginTransaction();
            var queryInsert = @"
                INSERT INTO PeopleExpense (PeopleId, DataReciept)
                VALUES (@PeopleId, @DataReciept);
                SELECT MAX(Id) FROM PeopleExpense";
            var peopleExpenseId =
            connection.QueryFirst<int>(queryInsert, peopleExpense, transaction);
            var querySubInsert = @"
                INSERT INTO ExpensePeopleExpense (ExpenseId, PeopleExpenseId, Sum)
                VALUES (@ExpenseId, @PeopleExpenseId, @Sum)";
            foreach (var elem in peopleExpense.ExpensePeopleExpenses)
            {
                connection.Execute(querySubInsert, new
                {
                    peopleExpenseId,
                    elem.ExpenseId,
                    elem.Sum
                }, transaction);
            }
            transaction.Commit();
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Ошибка при добавлении объекта");
            throw;
        }
    }
    public void DeletPeopleExpense(int id)
    {
        _logger.LogInformation("Удаление объекта");
        _logger.LogDebug("Объект: {id}", id);
        try
        {
            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
            connection.Open();
            using var transaction = connection.BeginTransaction();
            var queryDeleteSub = @"
            DELETE FROM ExpensePeopleExpense
            WHERE PeopleExpenseId = @id";
            connection.Execute(queryDeleteSub, new { id }, transaction);

            var queryDelete = @"
            DELETE FROM PeopleExpense
            WHERE Id = @id";
            connection.Execute(queryDelete, new { id }, transaction);

            transaction.Commit();
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Ошибка при удалении объекта");
            throw;
        }
    }
    public IEnumerable<PeopleExpense> ReadPeopleExpense(DateTime? dateForm = null, DateTime? dateTo = null, int? peopleId = null, int? expenseId = null)
    {
        _logger.LogInformation("Получение всех объектов");
        try
        {
            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
            var querySelect = "SELECT * FROM PeopleExpense";
            var peopleExpenses = connection.Query<PeopleExpense>(querySelect);
            _logger.LogDebug("Полученные объекты: {json}",
            JsonConvert.SerializeObject(peopleExpenses));
            return peopleExpenses;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Ошибка при чтении объектов");
            throw;
        }
    }
}