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

namespace OnProfNext.Client.Services
{
    public class BookingApiService
    {
        private readonly HttpClient _httpClient;

        public BookingApiService(HttpClient httpClient)
        {
            _httpClient = httpClient;
        }

        public async Task<(bool Success, List<BookingDto>? Data, string? Error)> GetMyBookingsAsync()
        {
            try
            {
                var bookings = await _httpClient.GetFromJsonAsync<List<BookingDto>>("api/bookings/mine");
                Console.WriteLine($"Received bookings: {JsonSerializer.Serialize(bookings, new JsonSerializerOptions { WriteIndented = true })}");
                return (true, bookings ?? new(), null);
            }
            catch (Exception ex)
            {
                return (false, null, $"Fehler beim Laden der Buchungen: {ex.Message}");
            }
        }

        public async Task<(bool Success, List<BookingDto>? Data, string? Error)> GetBookingsByOrderAsync(int orderId)
        {
            try
            {
                var bookings = await _httpClient.GetFromJsonAsync<List<BookingDto>>($"api/bookings/byorder/{orderId}");
                Console.WriteLine($"Received bookings for order {orderId}: {JsonSerializer.Serialize(bookings, new JsonSerializerOptions { WriteIndented = true })}");
                return (true, bookings ?? new(), null);
            }
            catch (Exception ex)
            {
                return (false, null, $"Fehler beim Laden der Buchungen: {ex.Message}");
            }
        }

        public async Task<(bool Success, string? Error)> CreateBookingAsync(BookingCreateDto dto)
        {
            try
            {
                // Explizite Serialisierung für Debugging
                var jsonPayload = JsonSerializer.Serialize(new
                {
                    dto.OrderId,
                    date = dto.Date.ToString("yyyy-MM-ddTHH:mm:ss"),
                    dto.Hours,
                    dto.MandantId,
                    dto.Description
                }, new JsonSerializerOptions { PropertyNamingPolicy = JsonNamingPolicy.CamelCase });
                Console.WriteLine($"Sending booking to API: {jsonPayload}");

                var content = new StringContent(jsonPayload, System.Text.Encoding.UTF8, "application/json");
                var response = await _httpClient.PostAsync("api/bookings", content);
                if (response.IsSuccessStatusCode)
                {
                    Console.WriteLine("Booking API call successful.");
                    return (true, null);
                }
                else
                {
                    var errorContent = await response.Content.ReadAsStringAsync();
                    Console.WriteLine($"API error response: {errorContent}");
                    return (false, $"Fehler beim Speichern: {response.ReasonPhrase}");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Exception in CreateBookingAsync: {ex.Message}");
                return (false, ex.Message);
            }
        }

        public async Task<(bool Success, string? Error)> DeleteBookingAsync(int id)
        {
            try
            {
                var response = await _httpClient.DeleteAsync($"api/bookings/{id}");
                if (response.IsSuccessStatusCode)
                {
                    Console.WriteLine("Delete booking API call successful.");
                    return (true, null);
                }
                else
                {
                    var errorContent = await response.Content.ReadAsStringAsync();
                    Console.WriteLine($"API error response: {errorContent}");
                    return (false, $"Fehler beim Löschen: {response.ReasonPhrase}");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Exception in DeleteBookingAsync: {ex.Message}");
                return (false, ex.Message);
            }
        }
    }
}