using System;
using System.Linq;
using System.Windows.Forms;
using DCIT.App.Forms;
using DCIT.App.Presentation;
using DCIT.Core.Services;

namespace DCIT.App
{
    internal static class Program
    {
        [STAThread]
        private static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);

            try
            {
                var startupDirectory = AppContext.BaseDirectory;
                var runtimeValidationService = new RuntimeEnvironmentValidationService(startupDirectory);
                var runtimeValidationResult = runtimeValidationService.Validate();
                if (runtimeValidationResult.HasBlockingIssues)
                {
                    MessageBox.Show(
                        BuildRuntimeValidationMessage(runtimeValidationResult),
                        "WORD 2007 格式调整软件",
                        MessageBoxButtons.OK,
                        MessageBoxIcon.Error);
                    return;
                }

                var logService = new LogService(startupDirectory);
                LogRuntimeValidation(logService, runtimeValidationResult);
                var configurationService = new ConfigurationService(startupDirectory);
                var configurationLoadResult = configurationService.Load();
                var fileScanService = new FileScanService();
                var ruleService = new RuleService();
                var docConversionService = new OfficeDocConversionService(startupDirectory);
                var wordTextExtractionService = new WordTextExtractionService(docConversionService);
                var autoExtractService = new AutoExtractService(wordTextExtractionService);
                var bmpDiffCodec = new BmpDiffCodec();
                var diffSerializationService = new DiffSerializationService(bmpDiffCodec);
                var documentProcessingService = new DocumentProcessingService(diffSerializationService, docConversionService);
                var dialogService = new UserDialogService();
                var temporaryFileCleanupService = new TemporaryFileCleanupService();
                var cleanupResult = temporaryFileCleanupService.Cleanup(configurationLoadResult.Config);

                if (cleanupResult.RemovedFiles.Count > 0)
                {
                    logService.Info("TEMP_CLEANUP", string.Format("启动时已清理 {0} 个遗留临时文件。", cleanupResult.RemovedFiles.Count));
                }

                foreach (var failure in cleanupResult.Failures)
                {
                    logService.Warning("TEMP_CLEANUP_FAIL", failure);
                }

                Application.Run(
                    new MainForm(
                        configurationService,
                        logService,
                        fileScanService,
                        ruleService,
                        autoExtractService,
                        documentProcessingService,
                        dialogService));
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    "程序启动失败: " + ex.Message,
                    "WORD 2007 格式调整软件",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }
        }

        private static string BuildRuntimeValidationMessage(DCIT.Core.Models.RuntimeEnvironmentValidationResult validationResult)
        {
            var lines = validationResult.BlockingIssues.Select(issue => "- " + issue).ToList();
            return "程序启动前环境检查未通过：" + Environment.NewLine + string.Join(Environment.NewLine, lines);
        }

        private static void LogRuntimeValidation(LogService logService, DCIT.Core.Models.RuntimeEnvironmentValidationResult validationResult)
        {
            logService.Info("ENV_STARTUP", "启动目录可写: " + validationResult.StartupDirectory);

            if (!string.IsNullOrWhiteSpace(validationResult.ResolvedAutomationProgId))
            {
                logService.Info("ENV_AUTOMATION", "检测到可自动化组件: " + validationResult.ResolvedAutomationProgId);
            }

            if (!string.IsNullOrWhiteSpace(validationResult.ResolvedDocToPath))
            {
                logService.Info("ENV_DOCTO", "检测到 docto.exe: " + validationResult.ResolvedDocToPath);
            }

            foreach (var warning in validationResult.Warnings)
            {
                logService.Warning("ENV_WARNING", warning);
            }
        }
    }
}