using System;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Script.Services;
using WebLib;

namespace 報到系統
{
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    [ScriptService]
    public class MessageAccountManage : System.Web.Services.WebService
    {
        /// <summary>
        /// 查詢簡訊帳號密碼
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse Search(int pageNo, int pageSize, string projectID, string platformCode)
        {
            try
            {
                // 計算起始索引 (pageNo 從 1 開始)
                int startRowIndex = (pageNo - 1) * pageSize;

                using (var conn = DAC.NewConnection())
                {
                    DAC_ProjectMMSAccount dac = new DAC_ProjectMMSAccount(conn);
                    DAC_BPAA dacBpaa = new DAC_BPAA(conn);

                    // 查詢資料
                    ProjectMMSAccountList result = dac.SelectPage(
                        noInputReturnAll: true,
                        startRowIndex: startRowIndex,
                        maximumRows: pageSize,
                        ProjectID: projectID,
                        orderBy: "ProjectID ASC",
                        PlatformCode: platformCode
                    );

                    // 取得總筆數
                    int totalCount = dac.SelectCount(
                        noInputReturnAll: true,
                        ProjectID: projectID,
                        orderBy: "",
                        PlatformCode: platformCode
                    );

                    // 補充計畫名稱
                    foreach (var item in result)
                    {
                        item.ProjectName = dacBpaa.SelectProjectName(item.ProjectID);
                    }

                    return new BaseResponse
                    {
                        Success = true,
                        Message = "查詢成功",
                        Data = result ?? new ProjectMMSAccountList(),
                        TotalCount = totalCount
                    };
                }
            }
            catch (Exception ex)
            {
                return new BaseResponse
                {
                    Success = false,
                    Message = "查詢簡訊帳號發生錯誤：" + ex.Message,
                    Data = new ProjectMMSAccountList(),
                    TotalCount = 0
                };
            }
        }

        /// <summary>
        /// 儲存簡訊帳號密碼 (新增或修改)
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse Save(bool isNew, ProjectMMSAccountItem item)
        {
            try
            {
                if (item == null)
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "參數不完整"
                    };
                }

                // 驗證必填欄位
                if (string.IsNullOrEmpty(item.ProjectID))
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "計畫代號為必填欄位"
                    };
                }

                if (string.IsNullOrEmpty(item.MMSAccount))
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "簡訊帳號為必填欄位"
                    };
                }

                if (string.IsNullOrEmpty(item.MMSPassword))
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "簡訊密碼為必填欄位"
                    };
                }

                // PlatformCode 長度驗證（可為空，表示使用系統預設）
                if (!string.IsNullOrEmpty(item.PlatformCode) && item.PlatformCode.Length > 20)
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "平台代碼最長 20 個字元"
                    };
                }

                // 驗證欄位長度
                if (item.ProjectID.Length > 20)
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "計畫代號最長 20 個字元"
                    };
                }

                if (item.MMSAccount.Length > 50)
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "簡訊帳號最長 50 個字元"
                    };
                }

                if (item.MMSPassword.Length > 50)
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "簡訊密碼最長 50 個字元"
                    };
                }

                using (var conn = DAC.NewConnection())
                {
                    DAC_ProjectMMSAccount dac = new DAC_ProjectMMSAccount(conn);

                    if (isNew)
                    {
                        // 檢查計畫代號是否已存在
                        ProjectMMSAccountList existingList = dac.Select(noInputReturnAll: false, ProjectID: item.ProjectID);
                        if (existingList != null && existingList.Count > 0)
                        {
                            return new BaseResponse
                            {
                                Success = false,
                                Message = "該計畫已存在簡訊帳號設定，請使用修改功能"
                            };
                        }

                        // 新增
                        ProjectMMSAccountItem newItem = dac.InsertOne(item);
                        return new BaseResponse
                        {
                            Success = true,
                            Message = "新增成功",
                            Data = newItem
                        };
                    }
                    else
                    {
                        // 修改：檢查計畫代號是否重複（新的計畫代號）
                        if (item.ID > 0)
                        {
                            ProjectMMSAccountList existingList = dac.Select(noInputReturnAll: false, ProjectID: item.ProjectID);
                            if (existingList != null && existingList.Count > 0 && existingList[0].ID != item.ID)
                            {
                                return new BaseResponse
                                {
                                    Success = false,
                                    Message = "該計畫已被其他記錄使用，無法修改"
                                };
                            }
                        }

                        // 更新
                        ProjectMMSAccountItem updatedItem = dac.UpdateOne(item);
                        return new BaseResponse
                        {
                            Success = true,
                            Message = "修改成功",
                            Data = updatedItem
                        };
                    }
                }
            }
            catch (Exception ex)
            {
                return new BaseResponse
                {
                    Success = false,
                    Message = "儲存簡訊帳號發生錯誤：" + ex.Message
                };
            }
        }

        /// <summary>
        /// 刪除簡訊帳號密碼
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse Delete(int id, int dbAppNo)
        {
            try
            {
                if (id <= 0)
                {
                    return new BaseResponse
                    {
                        Success = false,
                        Message = "參數不完整"
                    };
                }

                using (var conn = DAC.NewConnection())
                {
                    DAC_ProjectMMSAccount dac = new DAC_ProjectMMSAccount(conn);
                    int rowsAffected = dac.DeleteOne(id, dbAppNo);

                    if (rowsAffected > 0)
                    {
                        return new BaseResponse
                        {
                            Success = true,
                            Message = "刪除成功"
                        };
                    }
                    else
                    {
                        return new BaseResponse
                        {
                            Success = false,
                            Message = "找不到要刪除的資料或資料已被修改"
                        };
                    }
                }
            }
            catch (Exception ex)
            {
                return new BaseResponse
                {
                    Success = false,
                    Message = "刪除簡訊帳號發生錯誤：" + ex.Message
                };
            }
        }

        /// <summary>
        /// 搜尋計畫 - 用於自動完成
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse SearchProjects(string keyword)
        {
            try
            {
                DAC_BPAA dac = new DAC_BPAA();
                var result = dac.Select(keyword);

                return new BaseResponse
                {
                    Success = true,
                    Message = "搜尋成功",
                    Data = result ?? new NameValueList()
                };
            }
            catch (Exception ex)
            {
                return new BaseResponse
                {
                    Success = false,
                    Message = "搜尋計畫發生錯誤：" + ex.Message,
                    Data = new NameValueList()
                };
            }
        }

        /// <summary>
        /// 取得所有簡訊平台清單
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse GetPlatforms()
        {
            try
            {
                using (var conn = DAC.NewConnection())
                {
                    var dac = new DAC_MMSPlatform(conn);
                    MMSPlatformList list = dac.SelectAll();
                    return new BaseResponse { Success = true, Message = "查詢成功", Data = list };
                }
            }
            catch (Exception ex)
            {
                return new BaseResponse { Success = false, Message = "查詢平台發生錯誤：" + ex.Message };
            }
        }

        /// <summary>
        /// 取得目前系統預設平台
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse GetCurrentPlatform()
        {
            try
            {
                using (var conn = DAC.NewConnection())
                {
                    var dac = new DAC_MMSPlatform(conn);
                    MMSPlatformItem item = dac.SelectByCode(PublicVariable.CurrentMMSPlatform);
                    return new BaseResponse { Success = true, Message = "查詢成功", Data = item };
                }
            }
            catch (Exception ex)
            {
                return new BaseResponse { Success = false, Message = "查詢目前平台發生錯誤：" + ex.Message };
            }
        }

        /// <summary>
        /// 儲存平台設定（帳號 / 密碼）
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse SavePlatform(MMSPlatformItem item)
        {
            try
            {
                if (item == null || string.IsNullOrEmpty(item.PlatformCode))
                    return new BaseResponse { Success = false, Message = "參數不完整" };

                using (var conn = DAC.NewConnection())
                {
                    var dac = new DAC_MMSPlatform(conn);
                    MMSPlatformItem existing = dac.SelectByCode(item.PlatformCode);
                    if (existing == null)
                        return new BaseResponse { Success = false, Message = "找不到指定平台：" + item.PlatformCode };

                    existing.Account  = item.Account;
                    existing.Password = item.Password;
                    existing.Remark   = item.Remark;
                    dac.UpdateOne(existing);

                    return new BaseResponse { Success = true, Message = "儲存成功" };
                }
            }
            catch (Exception ex)
            {
                return new BaseResponse { Success = false, Message = "儲存平台設定發生錯誤：" + ex.Message };
            }
        }

        /// <summary>
        /// 設定目前使用的簡訊平台（更新 BWEX 並同步 PublicVariable）
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse SetCurrentPlatform(string platformCode)
        {
            try
            {
                if (string.IsNullOrEmpty(platformCode))
                    return new BaseResponse { Success = false, Message = "平台代碼不能為空" };

                using (var conn = DAC.NewConnection())
                {
                    // 確認平台代碼存在
                    var dacPlatform = new DAC_MMSPlatform(conn);
                    if (dacPlatform.SelectByCode(platformCode) == null)
                        return new BaseResponse { Success = false, Message = "找不到指定平台：" + platformCode };

                    // 更新 BWEX
                    var dacBwex = new DAC_BWEX(conn);
                    dacBwex.SetKeyValue("CurrentMMSPlatform", platformCode);
                }

                // 同步更新記憶體中的變數
                PublicVariable.CurrentMMSPlatform = platformCode;

                return new BaseResponse { Success = true, Message = "已切換至平台：" + platformCode };
            }
            catch (Exception ex)
            {
                return new BaseResponse { Success = false, Message = "設定平台發生錯誤：" + ex.Message };
            }
        }
    }
}