using Microsoft.ML;
using Microsoft.ML.Data;
using Microsoft.ML.Transforms.Onnx;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using WinFormsApp3;

//https://huggingface.co/protectai/gyr66-bert-base-chinese-finetuned-ner-onnx/tree/main
//model.onnx
//vocab.txt

namespace WinFormsApp3
{
    class Program
    {
        [STAThread] // ← 加上这个，99% 立刻解决你的错误
        static int Main(string[] args)
        {
            // 命令行下载：WinFormsApp3.exe --download <视频地址> [--out 保存路径] [--referer 页面地址]
            if (args.Length > 0 && string.Equals(args[0], "--download", StringComparison.OrdinalIgnoreCase))
            {
                // 下载丢给线程池线程去跑，不要在 STA 主线程上等待异步，否则 COM 线程模式会冲突
                return Task.Run(() => DownloadCliAsync(args)).GetAwaiter().GetResult();
            }

            ApplicationConfiguration.Initialize();

            // 这里不能提前 form.Show()：那会让 Form.Load 在消息循环开始之前执行，
            // WebView2 在没有消息泵时初始化会报 RPC_E_CHANGED_MODE，交给 Run 自己显示窗体
            Application.Run(new Form1());
            return 0;
        }

        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool AttachConsole(int dwProcessId);

        private const int AttachParentProcess = -1;

        /// <summary>
        /// 命令行下载入口：不创建窗体、不初始化 WebView2，直接把地址下完就退出，方便脚本化验证。
        /// </summary>
        private static async Task<int> DownloadCliAsync(string[] args)
        {
            // WinExe 默认没有控制台，Attach 到父进程的输出才能在终端里看到结果
            AttachConsole(AttachParentProcess);

            string url = args.Length > 1 ? args[1] : string.Empty;
            if (string.IsNullOrWhiteSpace(url) || url.StartsWith("--", StringComparison.Ordinal))
            {
                Console.Error.WriteLine("用法: WinFormsApp3.exe --download <视频地址> [--out 保存路径] [--referer 页面地址]");
                return 2;
            }

            string? referer = GetOption(args, "--referer");
            string? outPath = GetOption(args, "--out");
            if (string.IsNullOrWhiteSpace(outPath))
            {
                outPath = Path.Combine(Path.GetTempPath(), new VideoDownloader(referer).SuggestedFileName(url, null));
            }

            using CancellationTokenSource cts = new(TimeSpan.FromMinutes(15));
            Progress<DownloadProgress> progress = new(message => Console.WriteLine(message.Message));

            try
            {
                VideoDownloader downloader = new(referer);
                DownloadResult result = await downloader.DownloadAsync(url, outPath!, progress, cts.Token);
                Console.WriteLine($"OK file={result.FilePath} bytes={result.Bytes} converted={result.Converted}");
                return 0;
            }
            catch (Exception ex)
            {
                Console.Error.WriteLine($"FAIL {ex.GetType().Name}: {ex.Message}");
                return 1;
            }
        }

        /// <summary>
        /// 取 --out / --referer 这类"选项 值"形式的参数。
        /// </summary>
        private static string? GetOption(string[] args, string name)
        {
            for (int i = 0; i < args.Length - 1; i++)
            {
                if (string.Equals(args[i], name, StringComparison.OrdinalIgnoreCase))
                {
                    return args[i + 1];
                }
            }

            return null;
        }
    }
}