using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace Laservall.Solidworks.Common
{
    public class PartTypeItem
    {
        [JsonProperty("type_id")]
        public string TypeId { get; set; }

        [JsonProperty("parent_type_id")]
        public string ParentTypeId { get; set; }

        [JsonProperty("code")]
        public string Code { get; set; }

        [JsonProperty("type_name")]
        public string TypeName { get; set; }

        [JsonProperty("type_key")]
        public string TypeKey { get; set; }

        [JsonProperty("is_child")]
        public string IsChild { get; set; }

        public string DisplayText => $"{Code} - {TypeName}";

        public override string ToString() => DisplayText;
    }

    public static class PLMService
    {
        private const string PartTypeSearchUrl = "http://10.0.0.155:9992/api/PLM/PartType/Search";
        private static readonly HttpClient _httpClient = new HttpClient { Timeout = TimeSpan.FromSeconds(30) };

        private static List<PartTypeItem> _cachedPartTypes;
        private static readonly object _lock = new object();

        public static List<PartTypeItem> CachedPartTypes
        {
            get
            {
                lock (_lock)
                {
                    return _cachedPartTypes ?? new List<PartTypeItem>();
                }
            }
        }

        public static async Task<List<PartTypeItem>> SearchPartTypesAsync(string code = "", string name = "")
        {
            try
            {
                var requestBody = new { code = code ?? "", name = name ?? "" };
                var json = JsonConvert.SerializeObject(requestBody);
                var content = new StringContent(json, Encoding.UTF8, "application/json-patch+json");

                var response = await _httpClient.PostAsync(PartTypeSearchUrl, content).ConfigureAwait(false);
                var responseText = await response.Content.ReadAsStringAsync().ConfigureAwait(false);

                if (!response.IsSuccessStatusCode)
                {
                    Debug.WriteLine($"PLM PartType/Search failed: {(int)response.StatusCode} {responseText}");
                    return new List<PartTypeItem>();
                }

                return JsonConvert.DeserializeObject<List<PartTypeItem>>(responseText)
                    ?? new List<PartTypeItem>();
            }
            catch (Exception ex)
            {
                Debug.WriteLine($"PLM PartType/Search error: {ex.Message}");
                return new List<PartTypeItem>();
            }
        }

        public static async Task LoadAndCachePartTypesAsync()
        {
            var items = await SearchPartTypesAsync("", "").ConfigureAwait(false);
            lock (_lock)
            {
                _cachedPartTypes = items;
            }
            Debug.WriteLine($"PLM PartTypes loaded: {items.Count} items");
        }
    }
}