using CloudBuilder.CodeGenerator.Config;
using CloudBuilder.CodeGenerator.Data;
using CloudBuilder.Core.Application.Builders;
using CloudBuilder.Core.Authorization;
using CloudBuilder.Core.DatabaseAccessor;
using CloudBuilder.Core.DatabaseAccessor.Entity;
using CloudBuilder.Core.Extensions;
using CloudBuilder.Core.Service;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using RazorEngineCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace CloudBuilder.CodeGenerator.Utility
{
    public class RazorEngineHelper
    {
        public static string CompiledTemplate(string template, ModelData model)
        {
            ToolInitConfig toolInitConfig = ToolInitConfig.GetInstance();

            IRazorEngine razorEngine = new RazorEngine();

            List<string> args = new List<string>();
            if (toolInitConfig.AssemblyReferences != null)
            {
                foreach (var reference in toolInitConfig.AssemblyReferences)
                {
                    if (string.IsNullOrEmpty(reference.AssemblyFileName)) continue;

                    if (!File.Exists(reference.AssemblyFileName)) continue;
                    args.Add(reference.AssemblyFileName);
                }
            }

            template = toolInitConfig.Using + template;

            try
            {
                IRazorEngineCompiledTemplate compiledTemplate = razorEngine.Compile(template, builder =>
                {
                    //builder.AddAssemblyReferenceByName("System.Security"); // by name
                    foreach (string arg in args)
                    {
                        builder.AddAssemblyReference(Assembly.LoadFrom(arg));
                    }

                    Assembly[] assemblies = CloudBuilderBuilder.GetAssemblies();
                    foreach (Assembly assembly in assemblies)
                    {
                        builder.AddAssemblyReference(assembly);
                    }

                    builder.AddAssemblyReference(typeof(System.IO.File)); // by type
                                                                          //builder.AddAssemblyReference(Assembly.Load("source")); // by reference
                });

                return compiledTemplate.Run(model);
            }
            catch (Exception ex)
            {
                throw ex;
            }

            return null;
        }

        public static ClassInfo[] PackIServiceClassInfo(Assembly assembly)
        {
            if (assembly == null) return null;

            var baseServiceType = typeof(IService);

            var typeServices = assembly.GetTypes()
                .Where(type => type != baseServiceType && type.HasImplementedRawGeneric(baseServiceType))
                .Where(x => x.IsClass).ToList();

            List<ClassInfo> classInfos = new List<ClassInfo>();
            List<string> usings = new List<string>();
            foreach (var implementType in typeServices)
            {
                ClassInfo classInfo = new ClassInfo();
                classInfo.ClassName = implementType.Name;
                classInfo.InterfaceName = implementType.GetInterfaces().FirstOrDefault().Name;
                if (!usings.Contains(implementType.GetInterfaces().FirstOrDefault().Namespace))
                {
                    usings.Add(implementType.GetInterfaces().FirstOrDefault().Namespace);
                }

                var tors = implementType.GetConstructors();
                ClassConstructorInfo constructorInfo = new ClassConstructorInfo();
                List<MethodParameter> parameters = new List<MethodParameter>();
                foreach (var item in tors)
                {
                    ParameterInfo[] Parameters = item.GetParameters();
                    MethodParameter methodParameter;
                    foreach (var pi in Parameters)
                    {
                        methodParameter = new MethodParameter();
                        methodParameter.ParameterName = pi.Name;
                        methodParameter.ParameterTypeName = pi.ParameterType.Name;

                        if (!usings.Contains(pi.ParameterType.Namespace))
                        {
                            usings.Add(pi.ParameterType.Namespace);
                        }

                        parameters.Add(methodParameter);
                    }
                }
                constructorInfo.Parameters = parameters.ToArray();
                classInfo.ClassConstructorInfos = new ClassConstructorInfo[] { constructorInfo };

                List<ClassMethodInfo> classMethodInfos = new List<ClassMethodInfo>();
                ClassMethodInfo classMethodInfo;
                MethodInfo[] infos = implementType.GetMethods();
                foreach (var item in infos)
                {
                    var permissionOperate = item.GetCustomAttribute<PermissionOperateAttribute>();
                    var allowAnonymous = item.GetCustomAttribute<AllowAnonymousAttribute>();
                    if (permissionOperate == null && allowAnonymous == null) continue;
                    classMethodInfo = new ClassMethodInfo();
                    classMethodInfo.MethodName = item.Name;
                    var httpGet = item.GetCustomAttribute<HttpGetAttribute>();
                    if (httpGet != null) classMethodInfo.HttpName = "[HttpGet]";

                    if (permissionOperate != null)
                    {
                        classMethodInfo.AuthorizeName = null;
                        classMethodInfo.PermissionOperateAttribute = permissionOperate;
                    }
                    else
                    {
                        classMethodInfo.PermissionOperate = null;
                    }

                    var unitOfWork = item.GetCustomAttribute<UnitOfWorkAttribute>();
                    if (unitOfWork == null) classMethodInfo.UnitOfWorkName = null;

                    classMethodInfo.MethodReturnName = item.ReturnType.Name;
                    bool isValueType = MethodParameter.CheckValueType(item.ReturnType);
                    classMethodInfo.IsValueType = isValueType;

                    if (!isValueType && !usings.Contains(item.ReturnType.Namespace))
                    {
                        usings.Add(item.ReturnType.Namespace);
                    }


                    classMethodInfo.MethodReturnName = classMethodInfo.MethodReturnName == "Object" ? "dynamic" : classMethodInfo.MethodReturnName;

                    ParameterInfo[] methodParameters = item.GetParameters();
                    List<MethodParameter> methodParameterLs = new List<MethodParameter>();
                    MethodParameter methodParameter;
                    foreach (var pi in methodParameters)
                    {
                        methodParameter = new MethodParameter();
                        methodParameter.ParameterName = pi.Name;
                        methodParameter.ParameterTypeName = pi.ParameterType.Name;

                        if (!usings.Contains(pi.ParameterType.Namespace))
                        {
                            usings.Add(pi.ParameterType.Namespace);
                        }

                        methodParameter.IsValueType = MethodParameter.CheckValueType(pi.ParameterType);
                        if (methodParameter.IsValueType) methodParameter.ParameterTypeName = methodParameter.ParameterTypeName;
                        methodParameterLs.Add(methodParameter);
                    }
                    classMethodInfo.Parameters = methodParameterLs.ToArray();
                    classMethodInfos.Add(classMethodInfo);
                }
                classInfo.ClassMethodInfos = classMethodInfos.ToArray();
                classInfo.Usings = usings.ToArray();
                classInfos.Add(classInfo);
            }

            return classInfos.ToArray();
        }

        public static ClassInfo[] PackTypeScriptClassInfo(Assembly assembly)
        {
            var typeDatas = assembly.GetTypes()
                .Where(x => x.GetCustomAttribute<TypeScriptAttribute>() != null)
                .Where(x => x.IsClass).ToList();

            List<ClassInfo> dataInfos = new List<ClassInfo>();
            ClassInfo dataInfo;
            List<ClassPropertyInfo> classPropertyInfos = new List<ClassPropertyInfo>();
            ClassPropertyInfo classPropertyInfo;
            List<string> baseTypes = new List<string>();
            foreach (var implementType in typeDatas)
            {
                PackClassInfo(dataInfos, implementType);
            }

            return dataInfos.ToArray();
        }

        public static void PackClassInfo(List<ClassInfo> dataInfos, Type implementType)
        {
            ClassInfo dataInfo = new ClassInfo();
            dataInfo.ClassName = implementType.Name;

            if (implementType.BaseType != typeof(ViewEntityBase) &&
                implementType.BaseType != typeof(object)
                && implementType.BaseType != null && !implementType.BaseType.Name.StartsWith("EntityBase"))
            {
                dataInfo.ImplementTypeName = implementType.BaseType.Name;
                PackClassInfo(dataInfos, implementType.BaseType);
            }

            PropertyInfo[] properties = implementType.GetProperties(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance);
            List<string> baseTypes = new List<string>();
            List<ClassPropertyInfo> classPropertyInfos = new List<ClassPropertyInfo>();
            ClassPropertyInfo classPropertyInfo;

            ToolInitConfig toolInitConfig = ToolInitConfig.GetInstance();

            foreach (var item in properties)
            {
                classPropertyInfo = new ClassPropertyInfo();
                classPropertyInfo.PropertyName = item.Name;

                Type type = item.PropertyType;

                bool isContinue = false;
                foreach (string exculdePropertyType in toolInitConfig.ExculdePropertyTypes)
                {
                    if (item.PropertyType.Name.Contains(exculdePropertyType))
                    {
                        classPropertyInfo.PropertyTypeName = "any";
                        isContinue = true;
                        break;
                    }
                }

                if (isContinue)
                {
                    classPropertyInfos.Add(classPropertyInfo);
                    continue;
                }
                if (item.PropertyType.BaseType != null && item.PropertyType.BaseType.Name == "Array")
                {
                    string typeName = item.PropertyType.FullName.Replace("[]", string.Empty);
                    type = item.PropertyType.Assembly.GetType(typeName);
                    classPropertyInfo.IsValueType = MethodParameter.CheckValueType(type);
                    classPropertyInfo.PropertyTypeName = type.Name + "[]";
                }
                else if (item.PropertyType.Name == "List`1")
                {
                    string typeName = item.PropertyType.FullName.Replace("[[", "|").Replace(",", "|").Split('|')[1];
                    type = item.PropertyType.Assembly.GetType(typeName);
                    classPropertyInfo.IsValueType = MethodParameter.CheckValueType(type);
                    classPropertyInfo.PropertyTypeName = type.Name + "[]";
                }

                else
                {
                    classPropertyInfo.IsValueType = MethodParameter.CheckValueType(item.PropertyType);
                    classPropertyInfo.PropertyTypeName = item.PropertyType.Name;
                }
                if (!classPropertyInfo.IsValueType)
                {
                    if (!baseTypes.Contains(type.Name))
                        baseTypes.Add(type.Name);
                    PackClassInfo(dataInfos, type);
                }

                classPropertyInfos.Add(classPropertyInfo);
            }
            dataInfo.ClassProperties = classPropertyInfos.ToArray();
            if (baseTypes.Count > 0)
                dataInfo.Usings = baseTypes.ToArray();

            FieldInfo[] fields = implementType.GetFields();
            List<ClassFieldInfo> fieldInfos = new List<ClassFieldInfo>();
            ClassFieldInfo classFieldInfo;

            foreach (var item in fields)
            {
                if (!item.IsStatic) continue;
                bool IsValueType = MethodParameter.CheckValueType(item.FieldType);
                if (!IsValueType) continue;
                classFieldInfo = new ClassFieldInfo();
                classFieldInfo.IsValueType = IsValueType;
                classFieldInfo.FieldName = item.Name;
                classFieldInfo.FieldTypeName = item.FieldType.Name;
                classFieldInfo.FieldValue = Convert.ToString(item.GetValue(null));
                fieldInfos.Add(classFieldInfo);
            }
            dataInfo.ClassFields = fieldInfos.ToArray();

            dataInfos.Add(dataInfo);
        }
    }
}