using OnProfNext.Shared.Models.DTOs;
using System.Net.Http.Json;

namespace OnProfNext.Client.Services
{
    public class OrderApiService
    {
        private readonly HttpClient _httpClient;
        public OrderApiService(HttpClient httpClient)
        {
            _httpClient = httpClient;
        }

        // Alle Aufträge zu einem Projekt abrufen
        public async Task<(bool Success, List<OrderDto>? Data, string? Error)> GetOrdersByProjectAsync(int projectId)
        {
            try
            {
                var orders = await _httpClient.GetFromJsonAsync<List<OrderDto>>($"api/orders/byproject/{projectId}");
                return (true, orders ?? new List<OrderDto>(), null);
            }
            catch (Exception ex)
            {
                return (false, null, ex.Message);
            }
        }

        // Einzelnen Auftrag abrufen
        public async Task<(bool Success, OrderDto? Data, string? Error)> GetOrderAsync(int id)
        {
            try
            {
                var order = await _httpClient.GetFromJsonAsync<OrderDto>($"api/orders/{id}");
                if (order == null)
                    return (false, null, "Auftrag nicht gefunden.");

                return (true, order, null);
            }
            catch (Exception ex)
            {
                return (false, null, ex.Message);
            }
        }

        //Auftrag erstellen
        public async Task<(bool Success, string? Error)> CreateOrderAsync(OrderDto order)
        {
            try
            {
                var createDto = new OrderCreateDto
                {
                    ProjectId = order.ProjectId,
                    Auftragsnummer = order.Auftragsnummer,
                    Titel = order.Titel,
                    Status = order.Status,
                    Planstunden = order.Planstunden,
                    MandantId = order.MandantId,
                    UserIds = order.Mitarbeiter.Select(u => u.Id).ToList()
                };

                var response = await _httpClient.PostAsJsonAsync("api/orders", createDto);
                return response.IsSuccessStatusCode
                    ? (true, null)
                    : (false, $"Fehler beim Anlegen: {response.ReasonPhrase}");
            }
            catch (Exception ex)
            {
                return (false, ex.Message);
            }
        }

        //Auftrag aktualisieren
        public async Task<(bool Success, string? Error)> UpdateOrderAsync(OrderDto order)
        {
            try
            {
                var response = await _httpClient.PutAsJsonAsync($"api/orders/{order.Id}", order);
                if (!response.IsSuccessStatusCode)
                    return (false, $"Fehler beim Aktualisieren: {response.ReasonPhrase}");

                return (true, null);
            }
            catch (Exception ex)
            {
                return (false, ex.Message);
            }
        }

        //Auftrag löschen
        public async Task<(bool Success, string? Error)> DeleteOrderAsync(int id)
        {
            try
            {
                var response = await _httpClient.DeleteAsync($"api/orders/{id}");
                if (!response.IsSuccessStatusCode)
                    return (false, $"Fehler beim Löschen: {response.ReasonPhrase}");

                return (true, null);
            }
            catch (HttpRequestException)
            {
                return (false, "Server nicht erreichbar.");
            }
            catch (Exception ex)
            {
                return (false, ex.Message);
            }
        }

        //Set Order Users Async
        public async Task<(bool Success, string? Error)> SetOrderUsersAsync(int orderId, List<int> userIds)
        {
            try
            {
                var payload = new { OrderId = orderId, UserIds = userIds };
                var response = await _httpClient.PostAsJsonAsync("api/orderusers", payload);
                if (!response.IsSuccessStatusCode)
                    return (false, $"Fehler beim Speichern: {response.ReasonPhrase}");
                return (true, null);
            }
            catch (Exception ex)
            {
                return (false, ex.Message);
            }
        }



    }
}