using Backend.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;

using Repository.BackendRepository.Interface;

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text.Json;
using System.Threading.Tasks;
using System.Transactions;

namespace Backend.Controllers
{
    public class BuildInfoController : MybaseController<BuildInfoController>
    {
        private readonly IBackendRepository backendRepository;
        private string mapFileSaveAsPath = "";

        public BuildInfoController(IBackendRepository backendRepository)
        {
            this.backendRepository = backendRepository;

            mapFileSaveAsPath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "upload", "floor_map");
        }

        public IActionResult Index()
        {
            return View();
        }

        /// <summary>
        /// 區域基本資料列表
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<List<BuildInfo>>> BuildInfoList()
        {
            ApiResult<List<BuildInfo>> apiResult = new ApiResult<List<BuildInfo>>();
            List<BuildInfo> buildInfo = new List<BuildInfo>();

            try
            {
                var sqlString = @$"SELECT A.priority, A.building_tag, A.full_name, A.ip_address, A.ip_port, (SELECT COUNT(*) FROM floor f WHERE f.deleted = 0 AND f.building_tag = A.building_tag) AS 'floorNum', A.created_at
                                   FROM building A
                                   WHERE A.deleted = 0
                                   ORDER BY A.priority ASC, A.created_at DESC";
                buildInfo = await backendRepository.GetAllAsync<BuildInfo>(sqlString);

                apiResult.Code = "0000";
                apiResult.Data = buildInfo;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 新增 / 修改 區域基本資料
        /// </summary>
        /// <param name="post"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<string>> SaveBuildInfo(BuildInfo post)
        {
            ApiResult<string> apiResult = new ApiResult<string>();

            try
            {
                //判斷監控主機IP是否重複
                var judgeIPAddressRepeat = true;

                var sWhere = $@"deleted = 0 AND ip_address = @ip_address AND ip_port = @ip_port AND building_tag != @building_tag";
                var buildInfos = await backendRepository.GetAllAsync<BuildInfo>("building", sWhere, new { ip_address = post.Ip_address, ip_port = post.Ip_port, building_tag = post.building_tag });
                if (buildInfos.Count == 0)
                {
                    judgeIPAddressRepeat = false;
                }

                if (!judgeIPAddressRepeat)
                {
                    //Check for duplicate building tag
                    sWhere = $@"deleted = 0 AND building_tag = @Building_tag";
                    buildInfos = await backendRepository.GetAllAsync<BuildInfo>("building", sWhere, new { building_tag = post.building_tag });

                    if (buildInfos.Count > 0)
                    {
                        apiResult.Code = "0002";
                        apiResult.Msg = "區域代號不可重複";
                        return apiResult;
                    }

                    //新增
                    //抓取當前的Priority
                    var current_priority = await backendRepository.GetCurrentPriority("building");

                    Dictionary<string, object> building = new Dictionary<string, object>();
                    building = new Dictionary<string, object>()
                    {
                        { "@building_tag", post.building_tag},
                        { "@full_name", post.Full_name},
                        { "@ip_address", post.Ip_address},
                        { "@ip_port", post.Ip_port},
                        { "@priority", current_priority + 1},
                        { "@created_by", myUserInfo.Userinfo_guid}
                    };
                    await backendRepository.AddOneByCustomTable(building, "building");

                    apiResult.Code = "0000";
                    apiResult.Msg = "新增成功";
                }
                else
                {
                    apiResult.Code = "0001";
                    apiResult.Msg = "監控主機IP不可重複";
                }

            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(post);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 新增 / 修改 區域基本資料
        /// </summary>
        /// <param name="post"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<string>> EditBuildInfo(BuildInfo post)
        {
            ApiResult<string> apiResult = new ApiResult<string>();

            try
            {
                //判斷監控主機IP是否重複
                var judgeIPAddressRepeat = true;

                var sWhere = $@"deleted = 0 AND ip_address = @ip_address AND ip_port = @ip_port AND building_tag != @building_tag";
                var buildInfos = await backendRepository.GetAllAsync<BuildInfo>("building", sWhere, new { ip_address = post.Ip_address, ip_port = post.Ip_port, building_tag = post.building_tag });
                if (buildInfos.Count == 0)
                {
                    judgeIPAddressRepeat = false;
                }

                if (!judgeIPAddressRepeat)
                {
                    Dictionary<string, object> building = new Dictionary<string, object>();
                    building = new Dictionary<string, object>()
                    {
                        { "@full_name", post.Full_name},
                        { "@ip_address", post.Ip_address},
                        { "@ip_port", post.Ip_port},
                        { "@updated_by", myUserInfo.Userinfo_guid},
                        { "@updated_at", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}
                    };
                    await backendRepository.UpdateOneByCustomTable(building, "building", "building_tag='" + post.building_tag + "'");

                    apiResult.Code = "0000";
                    apiResult.Msg = "修改成功";
                }
                else
                {
                    apiResult.Code = "0001";
                    apiResult.Msg = "監控主機IP不可重複";
                }

            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(post);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        [HttpPost]
        public async Task<ApiResult<string>> DeleteOneBuild(string tag)
        {
            var apiResult = new ApiResult<string>();
            try
            {
                string sWhere = @$"deleted = @Deleted AND building_tag = @Tag";

                object param = new { Deleted = 0, Tag = tag };

                var buildInfo = await backendRepository.GetOneAsync<BuildInfo>("building", sWhere, param);

                if (buildInfo == null)
                {
                    apiResult.Code = "9998";
                    apiResult.Msg = "查無該區域資料";
                    return apiResult;
                }

                //檢查是否有未刪除的區域選單
                var sbuildMenuWhere = $@"building_tag = @Tag";
                var buildMenus = await backendRepository.GetAllAsync<BuildMenu>("building_menu", sbuildMenuWhere, new { Tag = tag });

                if (buildMenus.Count > 0)
                {
                    apiResult.Code = "9997";
                    apiResult.Msg = "區域選單中尚有選單正在使用該棟別，故無法刪除";
                    return apiResult;
                }

                //檢查底下是否有未刪除的樓層
                var sfloorWhere = $@"deleted = 0 AND building_tag = @tag";
                var floors = await backendRepository.GetAllAsync<BuildFloor>("floor", sfloorWhere, new { Tag = tag });

                if (floors.Count > 0)
                {
                    apiResult.Code = "9997";
                    apiResult.Msg = "樓層設定中尚有以下樓層正在使用該棟別，故無法刪除";
                    apiResult.Data = string.Join("<br>", floors.Select(x => x.Full_name).ToList());
                    return apiResult;
                }

                await backendRepository.DeleteOne(tag, "building", "building_tag");

                apiResult.Code = "0000";
                apiResult.Msg = "刪除成功";

            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + "building_tag=" + tag);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }

        /// <summary>
        /// 修改棟別區域排列順序
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<List<string>>> ChangeBuildInfoPriority(PostBuildInfoPriority post)
        {
            ApiResult<List<string>> apiResult = new ApiResult<List<string>>();
            try
            {
                List<Dictionary<string, object>> building_priorities = new List<Dictionary<string, object>>();
                if (post.BuildInfoPriorities != null)
                {
                    foreach (var building_priority in post.BuildInfoPriorities)
                    {
                        Dictionary<string, object> building_priority_dic = new Dictionary<string, object>();
                        building_priority_dic = new Dictionary<string, object>()
                        {
                            { "building_tag", building_priority.Building_tag},
                            { "@priority", building_priority.Priority},
                            { "@updated_by", myUserInfo.Userinfo_guid},
                            { "@updated_at", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}
                        };

                        building_priorities.Add(building_priority_dic);
                    }

                    var sql = $@"UPDATE building SET priority = @priority, updated_by = @updated_by, updated_at=@updated_at WHERE building_tag = @building_tag";

                    await backendRepository.ExecuteSql(sql, building_priorities);
                }

                apiResult.Code = "0000";
                apiResult.Msg = "修改成功";
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 樓層列表
        /// </summary>
        /// <param name="post"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<List<BuildFloor>>> BuildFloorList(string build_tag)
        {
            ApiResult<List<BuildFloor>> apiResult = new ApiResult<List<BuildFloor>>();
            List<BuildFloor> buildInfo = new List<BuildFloor>();

            try
            {
                var sqlString = @$"SELECT A.floor_guid, A.full_name, InitMapName + '.svg' AS 'initMapName', A.priority, A.created_at
                                   FROM floor A
                                   WHERE deleted = @deleted
                                   AND A.building_tag = @building_tag
                                   ORDER BY A.priority ASC";
                buildInfo = await backendRepository.GetAllAsync<BuildFloor>(sqlString, new { deleted = 0, building_tag = build_tag });

                apiResult.Code = "0000";
                apiResult.Data = buildInfo;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 取得單一樓層設定
        /// </summary>
        /// <param name="guid"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<BuildFloor>> GetOneBuildFloor(string guid)
        {
            ApiResult<BuildFloor> apiResult = new ApiResult<BuildFloor>();

            try
            {
                string sWhere = @$"deleted = @Deleted AND floor_guid = @Guid";

                object param = new { Deleted = 0, Guid = guid };

                var buildFloor = await backendRepository.GetOneAsync<BuildFloor>("floor", sWhere, param);

                if (!string.IsNullOrEmpty(buildFloor.InitMapName))
                {
                    buildFloor.MapUrl = "/upload/floor_map/" + buildFloor.Floor_guid + ".svg";
                }

                apiResult.Code = "0000";
                apiResult.Data = buildFloor;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 新增 / 修改 樓層設定
        /// </summary>
        /// <param name="post"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<string>> SaveBuildFloor([FromForm] BuildFloor post)
        {
            ApiResult<string> apiResult = new ApiResult<string>();

            try
            {
                string sWhere = @$"deleted = @Deleted AND floor_guid = @Guid";

                object param = new { Deleted = 0, Guid = post.Floor_guid };

                var buildFloor = await backendRepository.GetOneAsync<BuildFloor>("floor", sWhere, param);

                if (buildFloor == null)
                {
                    //新增
                    //產生一組GUID
                    var guid = Guid.NewGuid();
                    var floor_map_guid = Guid.NewGuid();

                    //抓取當前的Priority
                    var current_priority = await backendRepository.GetCurrentPriority("floor", "deleted = 0 AND building_tag = '" + post.Building_tag + "'");

                    Dictionary<string, object> floor = new Dictionary<string, object>();
                    floor = new Dictionary<string, object>()
                        {
                            { "@floor_guid", guid},
                            { "@building_tag", post.Building_tag},
                            { "@full_name", post.Full_name},
                            { "@InitMapName", post.InitMapName},
                            { "@floor_map_name", floor_map_guid},
                            { "@priority", current_priority + 1},
                            { "@created_by", myUserInfo.Userinfo_guid}
                        };
                    await backendRepository.AddOneByCustomTable(floor, "floor");

                    if (post.MapFile != null)
                    {
                        var split = post.MapFile.FileName.Split(".");
                        var fileName = floor_map_guid + "." + split[split.Length - 1];

                        var fullPath = Path.Combine(mapFileSaveAsPath, fileName);

                        using (var stream = new FileStream(fullPath, FileMode.Create))
                        {
                            post.MapFile.CopyTo(stream);
                        }
                    }                    

                    apiResult.Code = "0000";
                    apiResult.Msg = "新增成功";
                }
                else //修改
                {
                    Dictionary<string, object> floor = new Dictionary<string, object>();
                    floor = new Dictionary<string, object>()
                        {
                            { "@full_name", post.Full_name},
                            { "@InitMapName", post.InitMapName},
                            { "@updated_by", myUserInfo.Userinfo_guid},
                            { "@updated_at", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}
                        };
                    await backendRepository.UpdateOneByCustomTable(floor, "floor", "floor_guid='" + post.Floor_guid + "'");

                    var floor_map_guid = Guid.NewGuid();
                    if (post.MapFile != null)
                    {
                        //刪除原本檔案
                        FolderFunction folderFunction = new FolderFunction();
                        folderFunction.DeleteFile(Path.Combine(mapFileSaveAsPath, buildFloor.Floor_map_name + ".svg"));

                        Dictionary<string, object> floor_map_dic = new Dictionary<string, object>();
                        floor_map_dic = new Dictionary<string, object>()
                        {
                            { "@floor_map_name", floor_map_guid},
                        };
                        await backendRepository.UpdateOneByCustomTable(floor_map_dic, "floor", "floor_guid='" + post.Floor_guid + "'");

                        var split = post.MapFile.FileName.Split(".");
                        var fileName = floor_map_guid + "." + split[split.Length - 1];

                        var fullPath = Path.Combine(mapFileSaveAsPath, fileName);

                        using (var stream = new FileStream(fullPath, FileMode.Create))
                        {
                            post.MapFile.CopyTo(stream);
                        }
                    }

                    apiResult.Code = "0000";
                    apiResult.Msg = "修改成功";
                }
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(post);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 修改樓層排列順序
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<List<string>>> ChangeFloorPriority(PostFloorPriority post)
        {
            ApiResult<List<string>> apiResult = new ApiResult<List<string>>();
            try
            {
                List<Dictionary<string, object>> floor_priorities = new List<Dictionary<string, object>>();
                if (post.FloorPriorities != null)
                {
                    foreach (var floor_priority in post.FloorPriorities)
                    {
                        Dictionary<string, object> floor_priority_dic = new Dictionary<string, object>();
                        floor_priority_dic = new Dictionary<string, object>()
                        {
                            { "@floor_guid", floor_priority.Floor_guid},
                            { "@priority", floor_priority.Priority},
                            { "@updated_by", myUserInfo.Userinfo_guid},
                            { "@updated_at", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}
                        };

                        floor_priorities.Add(floor_priority_dic);
                    }

                    var sql = $@"UPDATE floor SET priority = @priority, updated_by = @updated_by, updated_at=@updated_at WHERE floor_guid = @floor_guid";

                    await backendRepository.ExecuteSql(sql, floor_priorities);
                }

                apiResult.Code = "0000";
                apiResult.Msg = "修改成功";
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }

            return apiResult;
        }

        /// <summary>
        /// 刪除單一樓層設定
        /// </summary>
        /// <param name="guid"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ApiResult<string>> DeleteOneFloor(string guid)
        {
            var apiResult = new ApiResult<string>();
            try
            {
                string sWhere = @$"deleted = @Deleted AND floor_guid = @Guid";

                object param = new { Deleted = 0, Guid = guid };

                var buildFloor = await backendRepository.GetOneAsync<BuildFloor>("floor", sWhere, param);

                if (buildFloor == null)
                {
                    apiResult.Code = "9998";
                    apiResult.Msg = "查無該樓層設定";
                    return apiResult;
                }

                //判斷區域選單是否還有使用該樓層
                var sub_system_where = $@"SELECT
	                                        CONCAT(b.full_name, ' - ', mv.system_key, ' - ', sv.system_key)
                                        FROM (
	                                        SELECT
		                                        ssf.building_tag,
		                                        ssf.main_system_tag,
		                                        ssf.sub_system_tag
	                                        FROM sub_system_floor ssf
	                                        WHERE ssf.deleted = 0 AND ssf.floor_tag = @floor_tag
                                        ) ssf
                                        LEFT JOIN building b ON ssf.building_tag = b.building_tag AND b.deleted = 0
                                        LEFT JOIN variable mv ON ssf.main_system_tag = mv.system_value AND mv.system_type = @main_system_type AND mv.deleted = 0
                                        LEFT JOIN variable sv ON ssf.sub_system_tag = sv.system_value AND sv.system_type = @sub_system_type AND sv.deleted = 0";

                var sub_system_floors = await backendRepository.GetAllAsync<string>(sub_system_where, new { floor_tag = buildFloor.Full_name, main_system_type = main_system_type, sub_system_type = sub_system_type });
                if (sub_system_floors.Count > 0)
                {
                    apiResult.Code = "9997";
                    apiResult.Msg = "區域選單中尚有以下選單正在使用該樓層，故無法刪除";
                    apiResult.Data = string.Join("<br>", sub_system_floors);
                    return apiResult;
                }

                await backendRepository.DeleteOne(guid, "floor", "floor_guid");

                apiResult.Code = "0000";
                apiResult.Msg = "刪除成功";

            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + "floor_guid=" + guid);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }
    }
}