using AxiOmron.PcbCheck.Options;
using AxiOmron.PcbCheck.Services.Interfaces;
using AxiOmron.PcbCheck.ViewModels;

namespace AxiOmron.PcbCheck.DesignTime;

/// <summary>
/// 为 XAML 设计器提供基于真实 ViewModel 的设计时定位器。
/// </summary>
public sealed class DesignTimeViewModelLocator
{
    private readonly DesignTimeAppStateStore _appStateStore = new();
    private readonly DesignTimeDispatcherService _dispatcherService = new();
    private readonly DesignTimeWorkflowControlService _workflowControlService = new();
    private readonly DesignTimeAppConfigService _appConfigService = new();
    private readonly DesignTimeAdminUnlockDialogService _adminUnlockDialogService = new();
    private readonly DesignTimeSftpLookupService _sftpLookupService = new();
    private readonly DesignTimePlcService _plcService = new();
    private MainWindowViewModel? _mainWindowViewModel;
    private SystemSettingViewModel? _systemSettingViewModel;

    /// <summary>
    /// 获取首页设计时视图模型。
    /// </summary>
    public MainWindowViewModel MainWindowViewModel
        => _mainWindowViewModel ??= CreateMainWindowViewModel();

    /// <summary>
    /// 获取系统设置设计时视图模型。
    /// </summary>
    public SystemSettingViewModel SystemSettingViewModel
        => _systemSettingViewModel ??= new SystemSettingViewModel(_appConfigService, _sftpLookupService, _appStateStore, _dispatcherService, _plcService);

    /// <summary>
    /// 创建首页设计时视图模型。
    /// </summary>
    /// <returns>填充了设计时演示数据的真实视图模型实例。</returns>
    private MainWindowViewModel CreateMainWindowViewModel()
    {
        AppConfig config = _appConfigService.Load();
        return new MainWindowViewModel(_appStateStore, _dispatcherService, _workflowControlService, config, _adminUnlockDialogService);
    }
}