using System.Net.Http;
using System.Net.Http.Json;
using PetWashControl.Models;

namespace PetWashControl.Services;

public class ApiService
{
    private readonly HttpClient _httpClient;
    private readonly ConfigurationService _config;

    public ApiService(ConfigurationService? config = null)
    {
        _config = config ?? new ConfigurationService();
        _httpClient = new HttpClient
        {
            BaseAddress = new Uri(_config.ApiBaseUrl),
            Timeout = TimeSpan.FromSeconds(30)
        };
    }

    public async Task<List<Package>> GetPackagesAsync()
    {
        try
        {
            return await _httpClient.GetFromJsonAsync<List<Package>>("api/packages") 
                   ?? new List<Package>();
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"无法连接到服务器: {ex.Message}", ex);
        }
    }

    public async Task<CreateOrderResponse?> CreateOrderAsync(int packageId)
    {
        try
        {
            var response = await _httpClient.PostAsJsonAsync("api/orders", new { packageId });
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadFromJsonAsync<CreateOrderResponse>();
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"创建订单失败: {ex.Message}", ex);
        }
    }

    public async Task<Order?> ConfirmPaymentAsync(int orderId)
    {
        try
        {
            var response = await _httpClient.PostAsync($"api/orders/{orderId}/payment", null);
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadFromJsonAsync<Order>();
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"确认支付失败: {ex.Message}", ex);
        }
    }

    public async Task<PaymentStatusResponse?> GetPaymentStatusAsync(int orderId, string outTradeNo)
    {
        try
        {
            return await _httpClient.GetFromJsonAsync<PaymentStatusResponse>(
                $"api/orders/{orderId}/payment-status?outTradeNo={Uri.EscapeDataString(outTradeNo)}");
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"获取支付状态失败: {ex.Message}", ex);
        }
    }

    public async Task<Order?> GetOrderAsync(int orderId)
    {
        try
        {
            return await _httpClient.GetFromJsonAsync<Order>($"api/orders/{orderId}");
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"获取订单失败: {ex.Message}", ex);
        }
    }

    public async Task<Order?> UpdateOrderStatusAsync(int orderId, OrderStatus status)
    {
        try
        {
            var response = await _httpClient.PutAsJsonAsync($"api/orders/{orderId}/status", new { status });
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadFromJsonAsync<Order>();
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"更新订单状态失败: {ex.Message}", ex);
        }
    }
    public async Task<Package?> UpdatePackageAsync(Package package)
    {
        try
        {
            var response = await _httpClient.PutAsJsonAsync($"api/packages/{package.Id}", new
            {
                package.Price,
                package.FirstSprayWaterTime,
                package.AfterShampoo1SprayTime,
                package.AfterShampoo2SprayTime,
                package.AfterShampoo3SprayTime,
                package.SprayShampoo1Time,
                package.SprayShampoo2Time,
                package.SprayShampoo3Time,
                package.HotAirTime,
                package.ColdAirTime,
                package.UvSterilizationTime
            });
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadFromJsonAsync<Package>();
        }
        catch (HttpRequestException ex)
        {
            throw new Exception($"保存套餐配置失败: {ex.Message}", ex);
        }
    }
}