SunlightAggregationTerminal/View/LogPage.xaml.cs

using CommunityToolkit.Mvvm.Messaging;
using SunlightAggregationTerminal.Class;
using SunlightAggregationTerminal.Models;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Data;

namespace SunlightAggregationTerminal.View;

public class ItemOption
{
    public required string? SERVER { get; set; }
    public required string? SERVERIP { get; set; }
}

public partial class LogPage : ContentPage
{
    public ObservableCollection<ItemOption>? Items { get; }  

    public LogPage()
	{
		InitializeComponent();

        WeakReferenceMessenger.Default.Register<string>(this, (r, scannedValue) =>
        {
            SERVERIP.Text = scannedValue;
        });

        //可用服务器列表
        AppModels.sqliteHelper.Open();
        var userdata = AppModels.sqliteHelper.ExecuteDataSet("select * from Server", null);
        AppModels.sqliteHelper.Close();

        if (userdata != null)
        {
            foreach (DataRow dataRow in userdata.Tables[0].Rows)
            {
                if (dataRow != null)
                {
                    Items?.Add(new ItemOption { 
                        SERVER = dataRow.Field<string>("UserName") ?? "", 
                        SERVERIP = dataRow.Field<string>("UserName") ?? ""
                    });                   
                }
            }            
        }

        // 可选：设置默认选中项
        if (Items != null)
        {
            SERVER.ItemsSource = Items;
            SERVER.SelectedItem = Items[0];
        }
    }

    private void SERVER_SelectedIndexChanged(object sender, EventArgs e)//服务器列表选择
    {
        var dat = SERVER.SelectedItem as ItemOption;
        if (dat != null)
        {
            SERVERIP.Text = dat.SERVERIP?.ToString();
        } 
    }

    private void OnScanButtonClicked(object sender, EventArgs e)//扫码按钮
    {
        // 跳转到扫码页面
        var scanPage = new ScanPage(3);
        Navigation.PushAsync(scanPage);
    }

    private async void Log_Clicked(object sender, EventArgs e)//登录
    {
        TcpServer.Configuration(SERVERIP.Text, UsernameEntry.Text, PasswordEntry.Text,
            Models.AppModels.GetAppUniqueId());

        TcpServer.TcpTransmit("Log");

        LoadingIndicator.IsVisible = true;

        if (await AppModels.LogIn())
        {
            var temp_name = AppModels.Select("SELECT * FROM  Users WHERE User='" + UsernameEntry.Text + "' LIMIT 1;")!.Tables[0];
            if (temp_name != null)
            {
                //存在更新账号状态
                string sql = @"UPDATE Users SET ServerID = '" + SERVERIP.Text
                    + "', UserPassword = '" + PasswordEntry.Text +
                    "', LogNo = true WHERE User='" + UsernameEntry.Text + "';";
                AppModels.Updata(sql);
            }
            else
            {
                //插入账号
                string sql = @"INSERT INTO Users (User,UserId ,UserName ,UserPassword ,
                        Enterprise ,Department ,ServerID ,Groups ,
                        ProxyID ,LogNo ,LocalAreaNetworkMode ,DarkMode ,
                        MessageNotificationMode ,GUID            
                        )VALUES('" + UsernameEntry.Text + "','SUNLIGHT','SUNLIGHT','" + PasswordEntry.Text +
                           "','SUNLIGHT','ENGINEER','" + SERVERIP.Text + "','ENGINEER'," +
                          " '',0,0,0,0,'" + Models.AppModels.GetAppUniqueId() + "');";
                AppModels.INSERT(sql);
            }

            var temp_server = AppModels.Select("SELECT * FROM  Server WHERE ServerID='" + SERVERIP.Text + "' LIMIT 1;")!.Tables[0];
            if (temp_server == null)
            {
                string sql = @"INSERT INTO Server ( Server, ServerID)VALUES('" + App.GlobalData.Enterprise + "','" +
                      App.GlobalData.ServerID + "');";
                AppModels.INSERT(sql);
            }

            await Navigation.PopModalAsync();
        }
        else 
        {
            await DisplayAlertAsync("未登录", "服务器不存在或拒绝访问", "是");
        }
        LoadingIndicator.IsVisible = false;
    }

    
}