using Admin.NET.Plugin.ApprovalFlow.Service;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;

namespace Admin.NET.Plugin.ApprovalFlow;

public static class ApprovalFlowMiddlewareExtensions
{
    public static IApplicationBuilder UseApprovalFlow(this IApplicationBuilder builder)
    {
        return builder.UseMiddleware<ApprovalFlowMiddleware>();
    }
}

/// <summary>
/// 审批流中间件 — 可选审计模式（B8 fix: 改用 InvokeAsync 参数注入）
/// </summary>
public class ApprovalFlowMiddleware
{
    private readonly RequestDelegate _next;

    public ApprovalFlowMiddleware(RequestDelegate next)
    {
        _next = next;
    }

    public async Task InvokeAsync(HttpContext context, SysApprovalService sysApprovalService)
    {
        var enabled = App.GetConfig<bool>("ApprovalFlow:AuditEnabled", false);
        if (enabled)
        {
            await sysApprovalService.MatchApproval(context);
        }

        await _next(context);
    }
}