using Prism.Ioc;
using Prism.Modularity;
using System.Resources;
using XP.Common.Localization;
using XP.Common.Localization.Interfaces;
using XP.Common.Logging.Interfaces;
using XP.ReportEngine.Configs;
using XP.ReportEngine.Interfaces;
using XP.ReportEngine.Services;
using XP.ReportEngine.ViewModels;
using XP.ReportEngine.Views;

namespace XP.ReportEngine
{
    /// <summary>
    /// 报告引擎模块 | Report Engine Module
    /// Prism 模块入口，注册报告生成相关服务到 DI 容器
    /// Prism module entry, registers report generation services to DI container
    /// </summary>
    [Module(ModuleName = "ReportEngineModule")]
    public class ReportEngineModule : IModule
    {
        /// <summary>
        /// 模块初始化 | Module initialization
        /// 注册模块级多语言资源源 | Register module-level localization resource source
        /// </summary>
        public void OnInitialized(IContainerProvider containerProvider)
        {
            // 注册模块级多语言资源到 Fallback Chain | Register module-level localization resources to Fallback Chain
            var localizationService = containerProvider.Resolve<ILocalizationService>();
            var resourceManager = new ResourceManager(
                "XP.ReportEngine.Resources.Resources",
                typeof(ReportEngineModule).Assembly);
            localizationService.RegisterResourceSource("XP.ReportEngine", resourceManager);

            // 初始化 LocalizationHelper，使其通过 ILocalizationService 获取字符串（支持 Fallback Chain）
            // Initialize LocalizationHelper to use ILocalizationService for string lookup (supports Fallback Chain)
            LocalizationHelper.Initialize(localizationService);

            // 后台预热报告引擎（触发 iText7 初始化、字体加载、JIT 编译，避免首次生成卡顿）
            // Background warm-up report engine (triggers iText7 init, font loading, JIT to avoid first-run latency)
            var reportService = containerProvider.Resolve<IReportService>();
            _ = System.Threading.Tasks.Task.Run(() => reportService.WarmUpAsync());

            System.Console.WriteLine("[ReportEngineModule] 模块已初始化 | Module initialized");
        }

        /// <summary>
        /// 注册类型到 DI 容器 | Register types to DI container
        /// </summary>
        public void RegisterTypes(IContainerRegistry containerRegistry)
        {
            // 注册配置加载器（瞬态）| Register config loader (transient)
            containerRegistry.Register<Configs.ConfigLoader>();

            // 加载并注册配置为单例 | Load and register config as singleton
            containerRegistry.RegisterSingleton<ReportConfig>(container =>
            {
                var logger = container.Resolve<ILoggerService>();
                var loader = new Configs.ConfigLoader(logger);
                return loader.LoadReportConfig();
            });

            // 注册报告生成器（瞬态）| Register report generator (transient)
            containerRegistry.Register<IReportGenerator, PdfReportGenerator>();

            // 注册报告生成器工厂（单例）| Register report generator factory (singleton)
            containerRegistry.RegisterSingleton<IReportGeneratorFactory, ReportGeneratorFactory>();

            // 注册报告服务门面（单例）| Register report service facade (singleton)
            containerRegistry.RegisterSingleton<IReportService, ReportService>();

            // 注册模板引擎（瞬态）| Register template engine (transient)
            containerRegistry.Register<ITemplateEngine, JsonTemplateEngine>();

            // 注册数据绑定器（瞬态）| Register data binder (transient)
            containerRegistry.Register<IDataBinder, ExpressionDataBinder>();

            // 注册排版引擎（瞬态）| Register layout engine (transient)
            containerRegistry.Register<ILayoutEngine, PageLayoutEngine>();

            // 注册 PDF 渲染器（瞬态）| Register PDF renderer (transient)
            containerRegistry.Register<IPdfRenderer, ITextPdfRenderer>();

            // 注册数据适配器（瞬态）| Register data adapter (transient)
            containerRegistry.Register<IReportDataAdapter, ProcessorDataAdapter>();

            // 注册报告编号生成器（单例，维护每日计数器状态）| Register report ID generator (singleton, maintains daily counter state)
            containerRegistry.RegisterSingleton<ReportIdGenerator>();

            // 注册演示窗口 ViewModel 和 View | Register demo window ViewModel and View
            containerRegistry.Register<ReportDemoViewModel>();
            containerRegistry.Register<ReportDemoWindow>();

            System.Console.WriteLine("[ReportEngineModule] 类型注册完成 | Type registration completed");
        }
    }
}