package main

import (
	"bufio"
	"bytes"
	"fmt"
	"go/ast"
	"go/format"
	"go/parser"
	"go/printer"
	"go/token"
	"io"
	"io/fs"
	"log"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"regexp"
	"runtime"
	"strings"
	"text/template"
	"unicode"

	"golang.org/x/text/cases"
	"golang.org/x/text/language"
	"gopkg.in/ini.v1"
)

var workspaceDir string
var tpl *template.Template

func init() {
	log.SetFlags(log.Llongfile)
	var err error
	workspaceDir, err = findProtoParentFolder()
	if err != nil {
		log.Panic(err)
	}

	err = os.Chdir(workspaceDir)
	if err != nil {
		log.Panicf("切换目录失败：%v\n", err)
	}

	tpl, err = template.ParseGlob(workspaceDir + "/proto/goutils/proto_build/tpls/*.tpl")
	if err != nil {
		panic(err)
	}
}

func main() {
	args := os.Args[1:] // 获取除去可执行文件名的命令行参数

	if len(args) == 0 || args[0] == "service" {
		ServiceMain()
	} else if args[0] == "client" {
		GenClientMain()
	} else {
		log.Println("Invalid argument. Usage: go run main.go [service|client]")
	}
}

func ServiceMain() {

	log.Println("项目目录:", workspaceDir)
	checkProtoMessageName(workspaceDir + "/" + "proto/service")

	packageName := "service"
	ServerCodePath := "server"
	genDir := "gen/go"
	ServiceName, projectName, projectLastName := getServiceNameAndProjectName(ServerCodePath)
	if ServiceName == "" {
		err := os.MkdirAll("server", 0755)
		if err != nil {
			log.Println(err)
		}
		createFileWithPermNotExists("server/service_config.ini", func(f io.Writer) error {
			return tpl.ExecuteTemplate(f, "service_config.tpl", nil)
		})
		panic("必须填写server/service_config.ini文件的项目名称与proto对应名称")
	}

	defer createFileNotExists("protoc.sh", 0755, func(f io.Writer) error {
		shellstr := `#! /bin/bash
if [ ! -d "proto" ] || [ -z "$(ls -A proto)" ]; then
  git submodule init
  git submodule update
fi
go run -gcflags="-N" proto/goutils/proto_build/main.go`
		f.Write([]byte(shellstr))
		return nil
	})

	serviceProtoDir := fmt.Sprintf("proto/%s", packageName)

	err := os.MkdirAll(genDir+"/"+packageName, 0755)
	if err != nil {
		log.Println(err)
	}

	CheckGomodBasicPackage()
	ExecProtoc(workspaceDir, serviceProtoDir, genDir, packageName, projectName)
	ExecCreateTest(genDir, projectLastName, packageName, ServiceName)
	ExecCreateConfig(ServiceName, projectLastName)
	ExecCreateAutoGrpc(genDir, packageName)
	ExecCreateAutoLogic(workspaceDir, ServiceName, genDir, packageName, projectLastName)
	// log.Println("Found proto folder at:", workerSpaceDir, ServiceNames, projectLastName, projectName)
}

func GenClientMain() {

	log.Println("项目目录:", workspaceDir)
	checkProtoMessageName(workspaceDir + "/" + "proto/service")

	packageName := "service"

	genDir := "gen/go"

	defer createFileNotExists("protoc.sh", 0755, func(f io.Writer) error {
		shellstr := `#! /bin/bash
if [ ! -d "proto" ] || [ -z "$(ls -A proto)" ]; then
	git submodule init
	git submodule update
fi
go run -gcflags="-N" proto/goutils/proto_build/main.go client`
		f.Write([]byte(shellstr))
		return nil
	})

	serviceProtoDir := fmt.Sprintf("proto/%s", packageName)

	err := os.MkdirAll(genDir+"/"+packageName, 0755)
	if err != nil {
		log.Println(err)
	}

	projectName := "gitlab.fusenpack.com/backend/grpc"

	CheckGomodBasicPackage()
	ExecProtoc(workspaceDir, serviceProtoDir, genDir, packageName, projectName)
	GitignoreGenCheck()
	ExecCreateAutoGrpc(genDir, packageName)

	createFileNotExists("update_fspkg_master.sh", 0755, func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "update_fspkg_master.tpl", nil)
	})
}

func ExecCreateConfig(ServiceName, ProjectName string) {

	err := os.MkdirAll("server/config", 0755)
	if err != nil {
		panic(err)
	}

	createFileWithPermNotExists("server/config/config.go", func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "config.tpl", nil)

	})

	// name := underscoreToLowerCamelCase(ServiceName)
	// createFileWithPermNotExists("server/main.go", func(f io.Writer) error {
	// 	return tpl.ExecuteTemplate(f, "main.tpl", map[string]any{
	// 		"ProjectName":       ProjectName,
	// 		"StructServiceNames": name,
	// 	})
	// })

	createFileWithPermNotExists("server/main_test.go", func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "main_test.tpl", nil)
	})

	createFileWithPermNotExists(".gitignore", func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "gitignore.tpl", nil)
	})

	createFileNotExists("update_fspkg_master.sh", 0755, func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "update_fspkg_master.tpl", nil)
	})
}

// 检查go.mod  添加 fusen的基础模块
func CheckGomodBasicPackage() {
	data, err := os.ReadFile("./go.mod")
	if err != nil {
		panic(err)
	}
	var isRewrite bool = false
	var content string = string(data)
	if !regexp.MustCompile(`fusen-basic `).Match(data) {
		log.Println(isRewrite, len(content))
		isRewrite = true
		content += "\n\nreplace fusen-basic v0.0.0 => gitlab.fusenpack.com/backend/basic v0.0.1"
	}

	if isRewrite {
		log.Println("rewrite go.mod => add <fusen-basic>")
		err = os.WriteFile("./go.mod", []byte(content), 0644)
		if err != nil {
			panic(err)
		}
	}
}

// 执行protoc
func ExecProtoc(workerSpaceDir, serviceProtoDir, genDir, packageName string, projectName string) {

	allServiceNames := getAllServiceName()

	protoCmdStr := fmt.Sprintf(`protoc -I %s --go_out %s --go_opt paths=source_relative --go-grpc_out %s --go-grpc_opt paths=source_relative `, "proto", genDir, genDir)
	for _, sname := range allServiceNames {
		protoCmdStr += importFileCmdStr(serviceNameEncode(packageName, sname), projectName)
	}

	importsFiles := checkServiceProtoImports(serviceProtoDir, allServiceNames...)

	for _, importFile := range importsFiles {
		protoCmdStr += importFileCmdStr(importFile, projectName)
	}

	log.Println(protoCmdStr)
	cmd := exec.Command("sh", "-c", protoCmdStr)
	cmd.Dir = workerSpaceDir

	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr

	// 执行命令
	err := cmd.Run()
	if err != nil {
		log.Printf("命令执行失败：%v\n", err)
		return
	}
}

func ExecCreateAutoLogic(workerSpaceDir string, ServiceName string, genDir, packageName, projectName string) {
	// snakeCaseServiceName := convertToSnakeCase(ServiceName)

	grpcFilePath := genDir + "/" + packageName
	// 获取目录下的所有文件
	files, err := os.ReadDir(grpcFilePath)
	if err != nil {
		log.Println("Error reading directory:", err)
		return
	}

	type StructService struct {
		StructServiceName string
		LogicPackageName  string
	}

	type MainTpl struct {
		ProjectName        string
		StructServiceNames []*StructService
		LogicDirNames      []string
	}

	var mtpl = &MainTpl{
		ProjectName: projectName,
	}

	// 处理main.go文件
	defer func() {
		// name := underscoreToLowerCamelCase(ServiceName)

		// name := underscoreToLowerCamelCase(ServiceName)
		createFile("server/main_gen.go", func(f io.Writer) error {
			return tpl.ExecuteTemplate(f, "main_gen.tpl", mtpl)
		})

		createFileWithPermNotExists("server/main.go", func(f io.Writer) error {
			return tpl.ExecuteTemplate(f, "main.tpl", mtpl)
		})

	}()

	// 遍历所有文件
	for _, file := range files {
		// 检查文件是否是 grpc.pb.go 文件
		if !file.IsDir() && strings.HasSuffix(file.Name(), "grpc.pb.go") {

			if !strings.HasPrefix(file.Name(), ServiceName) {
				continue
			}

			func() {

				// 获取文件的完整路径
				filePath := filepath.Join(grpcFilePath, file.Name())
				infos := ParseGrpcServerInfo(filePath)

				// 在这里可以对文件进行进一步的处理
				for _, info := range infos {
					// logicStructNames = append(logicStructNames, info.StructName)

					var methods []map[string]interface{}

					for _, met := range info.Method {
						var dup map[string]bool = make(map[string]bool)

						var paramsName []string
						var paramsAndType []string
						for i, param := range met.Params {
							var p string
							if param == "context.Context" {
								dup["ctx"] = true
								p = "ctx"
							} else {
								plist := strings.Split(param, ".")
								lowerName := strings.ToLower(plist[len(plist)-1])
								if strings.Contains(lowerName, "req") {
									if _, ok := dup["ctx"]; ok {
										p = "req"
									}
								}
								if _, ok := dup[p]; ok {
									p = fmt.Sprintf("param%d", i)
								}
							}
							param = p + " " + param
							paramsAndType = append(paramsAndType, param)
							paramsName = append(paramsName, p)
						}

						methodMap := map[string]interface{}{
							"StructName":     info.StructName,
							"MethodType":     met.MethodType,
							"MethodName":     met.MethodName,
							"ParamsName":     paramsName,
							"Params":         paramsAndType,
							"MethodReturn":   met.Returns[0],
							"MethodResponse": met.Returns[0][1:],
						}

						methods = append(methods, methodMap)

					}

					var ss *StructService = &StructService{}

					logicPackageName := convertToSnakeCase(info.StructName)
					ss.LogicPackageName = logicPackageName

					var genTypesBuffer bytes.Buffer
					err = tpl.ExecuteTemplate(&genTypesBuffer, "logic_grpc_struct.tpl", map[string]any{
						"ProjectName":             projectName,
						"StructName":              info.StructName,
						"UnimplementedStructName": info.UnimplementedStructName,
						"Methods":                 methods,
						"PackageName":             logicPackageName,
					})
					if err != nil {
						panic(err)
					}

					logicPath := "server/logics/" + logicPackageName
					mtpl.LogicDirNames = append(mtpl.LogicDirNames, logicPath)

					err = os.MkdirAll(logicPath, 0755)
					if err != nil {
						panic(err)
					}

					f, err := os.OpenFile(logicPath+"/types_gen.go", os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
					if err != nil {
						panic(err)
					}
					// log.Println(genTypesBuffer.String())
					formatted, err := format.Source(genTypesBuffer.Bytes())
					if err != nil {
						log.Println(genTypesBuffer.String())
						// panic(fmt.Sprintf("格式化代码失败：%v\n", err))
						formatted = genTypesBuffer.Bytes()
					}

					_, err = f.Write(formatted)
					if err != nil {
						panic(err)
					}
					// log.Println(genTypesBuffer.String())

					createFilePath := logicPath + "/logic_init.go"
					createFileWithPermNotExists(createFilePath, func(f io.Writer) error {
						return tpl.ExecuteTemplate(f, "logic_init.tpl", map[string]any{
							"StructNames": []string{info.StructName},
							"ProjectName": projectName,
							"PackageName": logicPackageName,
						})
					})

					ss.StructServiceName = info.ServiceName

					for _, method := range methods {
						fileName := convertToSnakeCase(method["MethodName"].(string))
						method["ProjectName"] = projectName
						method["PackageName"] = logicPackageName
						createFileWithPermNotExists(fmt.Sprintf("%s/%s_logic.go", logicPath, fileName), func(f io.Writer) error {
							return tpl.ExecuteTemplate(f, "logic_fusen_handler.tpl", method)
						})
					}

					mtpl.StructServiceNames = append(mtpl.StructServiceNames, ss)

				}
			}()
		}
	}

}

func ExecCreateTest(genDir, projectName, packageName, serviceName string) {

	genDir = genDir + "/" + packageName

	var struCollection []*GrpcMethodTest
	for _, gwPath := range getSuffixFilesPath(genDir, strings.ToLower(serviceName)+"_grpc.pb.go") {
		struCollection = append(struCollection, genGatewayTestFunction(gwPath)...)
	}

	var buf bytes.Buffer
	err := tpl.ExecuteTemplate(&buf, "http_grpc_method_test.tpl", map[string]any{
		"ProjectName":     projectName,
		"GrpcTestStructs": struCollection,
	})
	if err != nil {
		panic(err)
	}

	formatted, err := format.Source([]byte(buf.Bytes()))
	if err != nil {
		log.Printf("格式化代码失败：%v\n", err)
		return
	}

	genTestDir := "server/test"
	err = os.MkdirAll(genTestDir, 0755)
	if err != nil {
		log.Println(err)
	}

	filePath := fmt.Sprintf("%s/test_method_gen.go", genTestDir)
	err = os.WriteFile(filePath, formatted, 0644)
	if err != nil {
		log.Printf("无法写入文件：%v\n", err)
		return
	}

	for _, s := range struCollection {
		snakeName := convertToSnakeCase(s.MethodName)

		createFileWithPermNotExists(genTestDir+"/"+snakeName+"_test.go", func(f io.Writer) error {

			return tpl.ExecuteTemplate(f, "http_grpc_method_file_test.tpl", map[string]any{
				"ProjectName":   projectName,
				"RequestVar":    s.RequestVar,
				"MethodName":    s.MethodName,
				"RequestStruct": s.RequestStruct,
			})

		})

	}

	createFileWithPermNotExists(genTestDir+"/"+"var.go", func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "http_grpc_method_var.tpl", map[string]any{
			"ProjectName": projectName,
		})
	})

	createFileNotExists("run_latest.sh", 0755, func(f io.Writer) error {
		return tpl.ExecuteTemplate(f, "run_latest.tpl", nil)
	})

}

type ClientParam struct {
	ClientName      string
	ServerName      string
	ServiceName     string
	GrpcServiceName string
}

// 执行auto grpc
func ExecCreateAutoGrpc(genDir, packageName string) {
	genDir = genDir + "/" + packageName

	var clientParams []ClientParam
	for _, params := range getGrpcFileClientNames(genDir) {
		clientParams = append(clientParams, ClientParam{
			ClientName:      params.ClientName,
			ServerName:      params.ServerName,
			ServiceName:     cases.Lower(language.English).String(params.ClientName),
			GrpcServiceName: params.ServiceName,
		})
	}

	var buf bytes.Buffer
	tpl.ExecuteTemplate(&buf, "auto_grpc_nacos.tpl", map[string]any{
		"PackageName":  packageName,
		"ClientParams": clientParams,
	})

	formatted, err := format.Source([]byte(buf.Bytes()))
	if err != nil {
		log.Printf("格式化代码失败：%v\n", err)
		return
	}

	filePath := fmt.Sprintf("%s/auto_%s_grpc_nacos_client.pb.go", genDir, packageName)
	err = os.WriteFile(filePath, formatted, 0644)
	if err != nil {
		log.Printf("无法写入文件：%v\n", err)
		return
	}

	// log.Println(string(formatted))
}

// 执行auto grpc
func ExecCreateGatewayAutoGrpc(genDir, packageName, ProjectName string) {
	genDir = genDir + "/" + packageName

	var buf bytes.Buffer
	err := tpl.ExecuteTemplate(&buf, "auto_grpc_gateway_nacos.tpl", nil)
	if err != nil {
		panic(err)
	}

	var funcNames []string
	for _, gwPath := range getSuffixFilesPath(genDir, "pb.gw.go") {
		funcNames = append(funcNames, genGatewayWithNacosFunction(gwPath, &buf)...)
	}

	formatted, err := format.Source(buf.Bytes())
	if err != nil {
		log.Printf("格式化代码失败：%v\n", err)
		log.Println(buf.String())
		return
	}

	filePath := fmt.Sprintf("%s/auto_%s_grpc_nacos_gateway.pb.go", genDir, packageName)
	err = os.WriteFile(filePath, formatted, 0644)
	if err != nil {
		log.Printf("无法写入文件：%v\n", err)
		return
	}

	err = os.MkdirAll("server/logic", 0755)
	if err != nil {
		log.Println(err)
	}

	// 生成gateway的代码logic
	var grbuf bytes.Buffer
	err = tpl.ExecuteTemplate(&grbuf, "auto_grpc_gateway_register.tpl", map[string]any{
		"ProjectName": ProjectName,
		"FuncNames":   funcNames,
	})
	if err != nil {
		panic(err)
	}

	formatted, err = format.Source(grbuf.Bytes())
	if err != nil {
		log.Printf("格式化代码失败：%v\n", err)
		return
	}

	err = os.WriteFile("server/logic/gateway_logic_gen.go", formatted, 0644)
	if err != nil {
		log.Printf("无法写入文件：%v\n", err)
		return
	}
}

func genGatewayWithNacosFunction(grpcPath string, gatewayBuf *bytes.Buffer) (funcNames []string) {
	// workerSpaceDir+"/gen/go/service/auth_grpc.pb.go"
	// 解析Go源文件
	fset := token.NewFileSet()
	node, err := parser.ParseFile(fset, grpcPath, nil, parser.AllErrors)
	if err != nil {
		log.Println("解析文件失败:", err)
		os.Exit(1)
	}

	// packageName := node.Name.Name
	// log.Println(packageName)

	h := len("Register")
	e := len("HandlerClient")

	for _, decl := range node.Decls {
		// 检查是否是接口声明
		if fdec, ok := decl.(*ast.FuncDecl); ok && fdec.Name.IsExported() && strings.HasSuffix(fdec.Name.Name, "HandlerClient") {
			// log.Println(fdec.Name.Name)

			cName := fdec.Name.Name[h : len(fdec.Name.Name)-e]
			fdec.Name.Name = fdec.Name.Name + "Nacos"

			funcNames = append(funcNames, fdec.Name.Name)

			field := fdec.Type.Params.List[len(fdec.Type.Params.List)-1]
			field.Names = []*ast.Ident{{Name: "opts"}}
			field.Type = &ast.Ellipsis{

				Elt: &ast.SelectorExpr{
					X:   &ast.Ident{Name: "grpc"},
					Sel: &ast.Ident{Name: "DialOption"},
				},
			}

			for _, b := range fdec.Body.List {
				if bexpr, ok := b.(*ast.ExprStmt); ok {
					if pfunc, ok := bexpr.X.(*ast.CallExpr); ok && len(pfunc.Args) == 3 {
						if x, ok := pfunc.Args[2].(*ast.FuncLit); ok {
							for i, bb := range x.Body.List {
								if as, ok := bb.(*ast.AssignStmt); ok {
									if mycb, ok := as.Rhs[0].(*ast.CallExpr); ok {
										if strings.HasPrefix(getTypeString(mycb.Fun), "request_") {

											for i, arg := range mycb.Args {

												// 检查参数是否为标识符且名称为 "client"
												if ident, ok := arg.(*ast.Ident); ok && ident.Name == "client" {
													// 将参数替换为函数调用
													mycb.Args[i] = ast.NewIdent("grpcClient")
													break

												}
											}

											opts := ast.NewIdent("opts")
											autoClientFunc := &ast.CallExpr{
												Fun: ast.NewIdent("Auto" + cName + "ClientEx"),
												Args: []ast.Expr{
													ast.NewIdent("ctx"),
													opts,
												},
												Ellipsis: opts.End(),
											}

											// 创建新的变量声明

											var dstmt ast.Stmt = &ast.AssignStmt{
												Tok: token.DEFINE,
												Lhs: []ast.Expr{
													ast.NewIdent("grpcClient"),
													ast.NewIdent("err"),
												},
												Rhs: []ast.Expr{
													autoClientFunc,
												},
											}
											// 	// var insertIndex = 4
											var blist []ast.Stmt
											ifErr := x.Body.List[6]
											blist = append(blist, x.Body.List[:i]...)
											blist = append(blist, dstmt)
											blist = append(blist, ifErr)
											x.Body.List = append(blist, x.Body.List[i:]...)

											// log.Println(getTypeString(mycb.Fun))
											// printer.Fprint(os.Stdout, fset, as)
											// io.WriteString(os.Stdout, "\n")

											break
										}
									}

								}
							}

						}

					}
				}

			}

			// 修改函数执行内容
			// ast.Inspect(fdec.Body, func(n ast.Node) bool {

			// 	// if reqCallback, ok := n.(*ast.CallExpr); ok {
			// 	// 	// 在callExpr的上一级添加变量定义
			// 	// 	// 获取函数主体中的最后一个语句

			// 	// 	// var dstmt ast.Stmt = &ast.DeclStmt{Decl: varDecl}

			// 	// 	// var insertIndex = 4
			// 	// 	// var blist []ast.Stmt
			// 	// 	// blist = append(blist, reqCallback.Body.List[:insertIndex]...)
			// 	// 	// blist = append(blist, dstmt)
			// 	// 	// reqCallback.Body.List = append(blist, reqCallback.Body.List[insertIndex:]...)
			// 	// }

			// 	if callExpr, ok := n.(*ast.CallExpr); ok {
			// 		// 检查函数调用中的参数列表
			// 		for i, arg := range callExpr.Args {

			// 			// 检查参数是否为标识符且名称为 "client"
			// 			if ident, ok := arg.(*ast.Ident); ok && ident.Name == "client" {
			// 				// 将参数替换为函数调用
			// 				opts := ast.NewIdent("opts")
			// 				callExpr.Args[i] = &ast.CallExpr{
			// 					Fun: ast.NewIdent("Auto" + cName + "ClientEx"),
			// 					Args: []ast.Expr{
			// 						ast.NewIdent("ctx"),
			// 						opts,
			// 					},
			// 					Ellipsis: opts.End(),
			// 				}

			// 				break

			// 			}
			// 		}
			// 	}
			// 	return true
			// })

			// 打印修改后的函数
			err = gatewayBuf.WriteByte('\n')
			if err != nil {
				panic(err)
			}
			printer.Fprint(gatewayBuf, fset, fdec)

		}
	}

	// log.Println(infos)

	return
}

type GrpcMethodTest struct {
	RequestVar    string
	RequestStruct string
	Params        []string
	MethodName    string
	ServiceName   string
}

func genGatewayTestFunction(grpcPath string) (createdCollection []*GrpcMethodTest) {
	// workerSpaceDir+"/gen/go/service/auth_grpc.pb.go"
	// 解析Go源文件
	fset := token.NewFileSet()
	node, err := parser.ParseFile(fset, grpcPath, nil, parser.AllErrors)
	if err != nil {
		log.Println("解析文件失败:", err)
		os.Exit(1)
	}

	// var i = 0
	for _, decl := range node.Decls {
		// 检查是否是接口声明
		if fdec, ok := decl.(*ast.GenDecl); ok && fdec.Tok == token.TYPE {
			// ast.Print(fset, fdec)
			for _, spec := range fdec.Specs {
				if typeSpec, ok := spec.(*ast.TypeSpec); ok && strings.HasSuffix(typeSpec.Name.Name, "Server") && !strings.HasPrefix(typeSpec.Name.Name, "Unsafe") && !strings.Contains(typeSpec.Name.Name, "_") {

					serviceName := typeSpec.Name.Name
					serviceName = serviceName[:len(serviceName)-6]
					ast.Inspect(typeSpec, func(interfaceNode ast.Node) bool {

						if methodDecl, ok := interfaceNode.(*ast.Ident); ok && methodDecl.IsExported() {
							// log.Println(ftype.)
							if methodDecl.Obj != nil {
								if methodDecl.Obj.Kind == ast.Fun {
									// log.Println(typeSpec.Name.Name)
									// log.Println(methodDecl.Name)

									created := GrpcMethodTest{}

									created.ServiceName = serviceName
									created.MethodName = methodDecl.Name
									created.RequestVar = "var" + created.MethodName + "Req"
									field := methodDecl.Obj.Decl.(*ast.Field)
									ftype := field.Type.(*ast.FuncType)
									if len(ftype.Params.List) == 2 {
										if reqstruct, ok := ftype.Params.List[1].Type.(*ast.StarExpr); ok {
											rname := reqstruct.X.(*ast.Ident)
											created.RequestStruct = rname.Name
											createdCollection = append(createdCollection, &created)
										}
									}
									// ast.Print(fset, ftype)

								}
							}

						}

						// ast.Print(fset, n)
						// i++
						// log.Println(i)
						// if i == 7 {
						// 	log.Println()
						// }
						// printer.Fprint(os.Stdout, fset, n)
						// io.WriteString(os.Stdout, "\n")
						// if ftype, ok := n.(*ast.FuncType); ok {
						// 	log.Println(getTypeString(ftype))
						// 	ast.Print(fset, ftype)
						// }

						return true
					})

				}
			}

			// created.RequestVar = "var" + created.MethodName + "Req"

			// 修改函数执行内容

		}

	}

	return
}

func getSuffixFilesPath(dir string, suffix string) (result []string) {
	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
		if err != nil {
			return err
		}
		if info.IsDir() {
			return nil
		}
		if strings.HasSuffix(info.Name(), suffix) {
			result = append(result, path)
		}
		return nil
	})

	if err != nil {
		panic(err)
	}
	return
}

// 获取相关后缀的文件路径
func getGrpcFileClientNames(genDir string) (result []*ClientParam) {

	err := filepath.Walk(genDir, func(path string, info os.FileInfo, err error) error {
		if err != nil {
			return err
		}
		if info.IsDir() {
			return nil
		}
		if strings.HasSuffix(info.Name(), "grpc.pb.go") {
			params := parseGoFile(path)
			result = append(result, params...)
			// log.Println("找到的服务名称:", strings.Join(serverNames, " "))
		}
		return nil
	})

	if err != nil {
		log.Printf("遍历目录失败：%v\n", err)
		return nil
	}
	return
}

func importFileCmdStr(importFile string, projectName string) string {
	shellStr := " {{.ImportFile}} --go_opt=M{{.ImportFile}}={{.ProjectName}} --go-grpc_opt=M{{.ImportFile}}={{.ProjectName}}"

	tmpl, err := template.New("shell").Parse(shellStr)
	if err != nil {
		log.Printf("模板解析失败：%v\n", err)
		return ""
	}

	data := struct {
		ImportFile  string
		ProjectName string
	}{
		ImportFile:  importFile,
		ProjectName: projectName,
	}

	var buf bytes.Buffer
	err = tmpl.Execute(&buf, data)
	if err != nil {
		log.Printf("模板执行失败：%v\n", err)
		return ""
	}
	// log.Println(buf.String())
	return buf.String()
}

func serviceNameEncode(serviceProtoDir string, serviceName string) string {
	return fmt.Sprintf("%s/%s.proto", serviceProtoDir, serviceName)
}

func checkServiceProtoImports(serviceProtoDir string, serviceNames ...string) []string {
	var resultMap map[string]bool = make(map[string]bool)
	for _, sname := range serviceNames {
		fname := fmt.Sprintf("%s/%s.proto", serviceProtoDir, sname)

		file, err := os.Open(fname)
		if err != nil {
			panic(fmt.Sprintf("无法打开文件: %s\n", err))

		}
		defer file.Close()

		scanner := bufio.NewScanner(file)
		for scanner.Scan() {
			line := strings.TrimSpace(scanner.Text())
			if strings.HasPrefix(line, "//") {
				continue
			}

			for _, r := range regexp.MustCompile(`import\s+"(service/.*\.proto)"`).FindAllStringSubmatch(line, -1) {
				resultMap[r[1]] = true
			}
			// log.Println(line)
		}

		if err := scanner.Err(); err != nil {
			log.Printf("读取文件失败: %s\n", err)
		}
		if err != nil {
			panic(err)
		}

	}
	var result []string
	for k := range resultMap {
		result = append(result, k)
	}
	return result
}

func getAllServiceName() (result []string) {
	dirEntrys, err := os.ReadDir("proto/service")
	if err != nil {
		panic(err)
	}
	for _, e := range dirEntrys {
		if filepath.Ext(e.Name()) == ".proto" {
			result = append(result, e.Name()[0:len(e.Name())-6])
		}
	}
	return
}

// 获取项目的参数
func getServiceNameAndProjectName(dir string) (serviceName string, projectName string, goModeName string) {

	ifile, err := ini.Load(dir + "/service_config.ini")
	if err != nil {
		err = os.MkdirAll("server", 0755)
		if err != nil {
			log.Println(err)
		}
		createFileWithPermNotExists(dir+"/service_config.ini", func(f io.Writer) error {
			return tpl.ExecuteTemplate(f, "service_config.tpl", nil)
		})
		panic("必须填写server/service_config.ini文件的项目名称与proto对应名称")
	}

	ses := ifile.Section("DEFAULT")
	if err != nil {
		panic(err)
	}
	key, err := ses.GetKey("SERVICE_NAME")
	if err != nil {
		panic(err)
	}
	serviceName = key.String()
	if serviceName == "" {
		panic("必须填写server/service_config.ini文件的项目名称与proto对应名称")
	}

	key, err = ses.GetKey("PROJECT_NAME")
	if err != nil {
		panic(err)
	}
	projectName = key.String()
	if projectName == "" {
		panic("必须填写server/service_config.ini文件的ProjectName称与仓库对应名称")
	}

	paths := strings.Split(projectName, "/")
	goModeName = paths[len(paths)-1]

	moddata, err := os.ReadFile("go.mod")
	if err != nil {
		panic(err)
	}

	result := regexp.MustCompile(`module\s+([a-zA-Z_\-]+)`).FindAllStringSubmatch(string(moddata), 1)
	if len(result) == 0 {
		panic("无法找到go.mod 获取 module信息")
	}
	goModeName = result[0][1]

	return
}

// 获取proto文件的父目录
func findProtoParentFolder() (string, error) {
	cwd, err := os.Getwd()
	if err != nil {
		return "", err
	}
	return findProtoFolderRecursive(cwd)
}

func findProtoFolderRecursive(dir string) (string, error) {
	if dir == "/" || dir == "." {
		return "", fmt.Errorf("proto folder not found")
	}

	protoDir := filepath.Join(dir, "proto")

	if _, err := os.Stat(protoDir); err == nil {
		return dir, nil
	}

	return findProtoFolderRecursive(filepath.Dir(dir))
}

func parseGoFile(filePath string) (ClientParams []*ClientParam) {

	// 创建文件集合
	fset := token.NewFileSet()

	// 解析文件
	file, err := parser.ParseFile(fset, filePath, nil, parser.ParseComments)
	if err != nil {
		log.Printf("解析文件失败：%v\n", err)
		return
	}

	// 获取包名
	// pkgName := file.Name.Name
	// log.Println("Package:", pkgName)

	var Param *ClientParam = &ClientParam{}
	// 遍历文件中的声明
	for _, decl := range file.Decls {

		if ServiceName, GrpcServiceName, ok := getGrpcFileServiceName(decl); ok {
			Param.ServiceName = ServiceName
			Param.GrpcServiceName = GrpcServiceName
			ClientParams = append(ClientParams, Param)
			Param = &ClientParam{}
		}
		// 检查是否是类型声明
		if genDecl, ok := decl.(*ast.GenDecl); ok && genDecl.Tok == token.TYPE {
			// 检查是否是结构体声明
			for _, spec := range genDecl.Specs {

				if typeSpec, ok := spec.(*ast.TypeSpec); ok {

					if structType, ok := typeSpec.Type.(*ast.StructType); ok {

						// 获取结构体名称
						// ast.Print(fset, decl)
						structName := typeSpec.Name.Name
						// log.Println("Struct: ", structName)
						if strings.HasSuffix(structName, "Server") {
							Param.ServerName = structName[len("Unimplemented") : len(structName)-6]
						}

						// 遍历结构体的字段列表
						for _, field := range structType.Fields.List {
							// 获取字段名称
							field.End()
							// fieldName := field.Names[0].Name
							// log.Println("Field:", fieldName)
						}
					} else if iface, ok := typeSpec.Type.(*ast.InterfaceType); ok {
						interfaceName := typeSpec.Name.Name

						if len(iface.Methods.List) >= 3 {
							if len(iface.Methods.List[2].Names) == 0 {

								// log.Println(name0, name1)
								if getTypeString(iface.Methods.List[2].Type) == "grpc.ClientStream" {
									// MethodType = "stream"
									// log.Println(interfaceName)

									continue
								}

							}
						}

						if strings.HasSuffix(interfaceName, "Client") {
							Param.ClientName = interfaceName[0 : len(interfaceName)-6]
						}
					}
				}
			}
		} else if funcDecl, ok := decl.(*ast.FuncDecl); ok {
			funcDecl.End()
			// 检查是否是函数声明
			// funcName := funcDecl.Name.Name
			// log.Printf("Function: %s\n", funcName)
			// log.Printf("Signature: %s\n", funcDecl.Type.Params)

			// Print the function body, if it has one

			// if funcDecl.Body != nil {
			// 	log.Printf("Body: \n%s\n", funcDecl.Body.List)
			// }
		}
	}

	return
}

type GrpcServerMethod struct {
	MethodName string
	MethodType string
	Params     []string
	Returns    []string
}

type GrpcServerInfo struct {
	ServiceName             string
	StructName              string
	UnimplementedStructName string
	Method                  []*GrpcServerMethod
}

func ParseGrpcServerInfo(grpcPath string) (infos []*GrpcServerInfo) {

	// workerSpaceDir+"/gen/go/service/auth_grpc.pb.go"
	// 解析Go源文件
	fset := token.NewFileSet()
	node, err := parser.ParseFile(fset, grpcPath, nil, parser.AllErrors)
	if err != nil {
		log.Println("解析文件失败:", err)
		os.Exit(1)
	}

	packageName := node.Name.Name

	// 遍历文件中的所有声明
	for _, decl := range node.Decls {
		// 检查是否是接口声明

		if iface, ok := decl.(*ast.GenDecl); ok && iface.Tok == token.TYPE {
			for _, spec := range iface.Specs {
				// 检查是否是接口类型
				if ifaceSpec, ok := spec.(*ast.TypeSpec); ok {
					if ifaceType, ok := ifaceSpec.Type.(*ast.InterfaceType); ok {
						// 打印接口名
						// log.Println("接口名:", ifaceSpec.Name.Name)
						if !strings.HasSuffix(ifaceSpec.Name.Name, "Server") {
							continue
						}

						if strings.Contains(ifaceSpec.Name.Name, "_") {
							continue
						}

						if strings.HasPrefix(ifaceSpec.Name.Name, "Unsafe") {
							continue
						}

						if len(ifaceType.Methods.List) == 3 {
							if len(ifaceType.Methods.List[0].Names) == 1 && len(ifaceType.Methods.List[1].Names) == 1 {
								name0 := ifaceType.Methods.List[0].Names[0].Name
								name1 := ifaceType.Methods.List[1].Names[0].Name
								if name0 == "SendAndClose" && name1 == "Recv" {
									// log.Println(name0, name1)
									if getTypeString(ifaceType.Methods.List[2].Type) == "grpc.ServerStream" {
										// MethodType = "stream"
										continue
									}

								}

							}
						}

						ServiceName := ifaceSpec.Name.Name[0 : len(ifaceSpec.Name.Name)-6]
						info := &GrpcServerInfo{
							ServiceName: ServiceName,
							StructName:  ServiceName + "Logic",
						}

						info.UnimplementedStructName = "service.Unimplemented" + ServiceName + "Server"
						infos = append(infos, info)

						// 打印接口方法
						for _, method := range ifaceType.Methods.List {

							if len(method.Names) == 0 {
								continue
							}

							if !isUpper(method.Names[0].Name) {
								continue
							}

							m := &GrpcServerMethod{
								MethodType: "rpc",
							}
							info.Method = append(info.Method, m)
							// 方法名称
							// log.Println("方法名:", method.Names[0].Name)
							// MethodName := method.Names[0].Name
							m.MethodName = method.Names[0].Name
							// 方法参数
							mparams := method.Type.(*ast.FuncType).Params.List
							switch len(mparams) {
							case 2:
								for _, field := range mparams {
									// log.Printf("%s %s\n", field.Names, getTypeString(field.Type, packageName, 0))
									m.Params = append(m.Params, getTypeString(field.Type, packageName))
								}
							case 1:
								m.MethodType = "stream"
								for _, field := range mparams {
									// log.Printf("%s %s\n", field.Names, getTypeString(field.Type, packageName, 0))
									m.Params = append(m.Params, getTypeString(field.Type, packageName))
								}
							case 0:
								log.Println("无参数")
							default:
								panic("诡异的结构")
							}

							// 方法返回值
							if method.Type.(*ast.FuncType).Results != nil {
								for _, field := range method.Type.(*ast.FuncType).Results.List {

									m.Returns = append(m.Returns, getTypeString(field.Type, packageName))
								}
							} else {
								log.Println("无返回值")
							}

							// log.Println()
						}
					}
				}
			}
		}
	}

	// log.Println(infos)

	return
}

func isUpper(name string) bool {
	return name[:1] == strings.ToUpper(name[:1])
}

func getTypeString(expr ast.Expr, packageName ...string) string {
	if len(packageName) > 0 {
		return _getTypeString(expr, &packageName[0], 0)
	} else {
		return _getTypeString(expr, nil, 0)
	}
}

// 获取类型字符串
func _getTypeString(expr ast.Expr, packageName *string, level int) string {
	switch t := expr.(type) {
	case *ast.Ident:
		if level == 0 && isUpper(t.Name) {
			if packageName != nil {
				return fmt.Sprintf("%s.%s", *packageName, t.Name)
			} else {
				return fmt.Sprintf("%s", t.Name)
			}
		}
		return t.Name
	case *ast.SelectorExpr:
		return fmt.Sprintf("%s.%s", _getTypeString(t.X, packageName, level+1), t.Sel.Name)
	case *ast.StarExpr:
		return fmt.Sprintf("*%s", _getTypeString(t.X, packageName, level))
	case *ast.ArrayType:
		return fmt.Sprintf("[]%s", _getTypeString(t.Elt, packageName, level+1))
	case *ast.MapType:
		return fmt.Sprintf("map[%s]%s", _getTypeString(t.Key, packageName, level+1), _getTypeString(t.Value, packageName, level+1))
	case *ast.ChanType:
		dir := ""
		switch t.Dir {
		case ast.SEND:
			dir = "chan<-"
		case ast.RECV:
			dir = "<-chan"
		}
		return fmt.Sprintf("%s %s", dir, _getTypeString(t.Value, packageName, level+1))
	case *ast.StructType:
		return "struct{}"
	case *ast.InterfaceType:
		return "interface{}"
	case *ast.FuncType:
		var params []string
		if t.Params != nil {
			for _, param := range t.Params.List {
				params = append(params, _getTypeString(param.Type, packageName, level+1))
			}
		}

		var results []string
		if t.Results != nil {
			for _, result := range t.Results.List {
				results = append(results, _getTypeString(result.Type, packageName, level+1))
			}
		}
		return fmt.Sprintf("func(%s) %s", strings.Join(params, ", "), strings.Join(results, ", "))
	default:
		panic(fmt.Sprintf("%s", t))
	}
}

func createFile(filename string, do func(f io.Writer) error) error {
	// 检测文件是否存在

	file, err := os.OpenFile(filename, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
	if err != nil {
		return err
	}
	defer file.Close()

	var buf = bytes.NewBuffer(nil)
	err = do(buf)
	if err != nil {
		panic(err)
	}
	data, err := format.Source(buf.Bytes())
	if err != nil {
		_, err = file.Write(buf.Bytes())
	} else {
		_, err = file.Write(data)
	}

	if err != nil {
		panic(err)
	}

	return nil
}

func createFileWithPermNotExists(filename string, do func(f io.Writer) error) error {
	// 检测文件是否存在
	_, err := os.Stat(filename)
	if os.IsNotExist(err) {
		// 文件不存在，创建文件
		file, err := os.Create(filename)
		if err != nil {
			return err
		}
		defer file.Close()
		var buf = bytes.NewBuffer(nil)
		err = do(buf)
		if err != nil {
			panic(err)
		}
		data, err := format.Source(buf.Bytes())
		if err != nil {
			_, err = file.Write(buf.Bytes())
		} else {
			_, err = file.Write(data)
		}

		if err != nil {
			panic(err)
		}

		log.Printf("%s 文件已创建并写入内容\n", filename)
	} else if err != nil {
		// 发生其他错误
		return err
	} else {
		// 文件已存在
		// log.Printf("%s 文件已存在\n", filename)
	}

	return nil
}

func createFileNotExists(filename string, perm fs.FileMode, do func(f io.Writer) error) error {
	// 检测文件是否存在
	_, err := os.Stat(filename)
	if os.IsNotExist(err) {
		// 文件不存在，创建文件
		file, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY, perm)
		if err != nil {
			return err
		}
		defer file.Close()
		var buf = bytes.NewBuffer(nil)
		err = do(buf)
		if err != nil {
			panic(err)
		}
		_, err = file.Write(buf.Bytes())
		if err != nil {
			panic(err)
		}

		log.Printf("%s 文件已创建并写入内容\n", filename)
	} else if err != nil {
		// 发生其他错误
		panic(err)
	} else {
		// 文件已存在
		// log.Printf("%s 文件已存在\n", filename)
	}

	return nil
}

func convertToSnakeCase(name string) string {
	var result strings.Builder

	for i, char := range name {
		if unicode.IsUpper(char) {
			if i > 0 {
				result.WriteRune('_')
			}
			result.WriteRune(unicode.ToLower(char))
		} else {
			result.WriteRune(char)
		}
	}

	return result.String()
}

// 获取当前执行文件绝对路径（go run）
func getCurrentAbPathByCaller() string {
	var abPath string
	_, filename, _, ok := runtime.Caller(0)
	if ok {
		abPath = path.Dir(filename)
	}
	return abPath
}

func checkProtoMessageName(folderPath string) {

	messageNames := make(map[string][]string)
	// 遍历文件夹
	err := filepath.Walk(folderPath, func(path string, info os.FileInfo, err error) error {
		if err != nil {
			return err
		}

		// 检查是否是 .proto 文件
		if filepath.Ext(path) == ".proto" {
			// 读取文件内容
			content, err := os.ReadFile(path)
			if err != nil {
				return err
			}

			// 提取消息类型的名称
			matches := regexp.MustCompile(`message\s+(\w+)\s+{`).FindAllStringSubmatch(string(content), -1)

			for _, match := range matches {
				messageName := match[1]

				if paths, ok := messageNames[messageName]; ok {
					// 发现重复的消息类型名称
					panic(fmt.Sprintf("重复的消息类型名称 '%s' 在文件 '%s' 和之前的文件 %s 中存在重复。\n", messageName, path, paths[0]))
				}
				messageNames[messageName] = append(messageNames[messageName], path)

			}
		}

		return nil
	})

	if err != nil {
		panic(fmt.Sprintln("遍历文件夹时发生错误:", err))
	}
}

// 下划线转驼峰
func underscoreToLowerCamelCase(s string) string {
	// 分割字符串
	words := strings.Split(s, "_")
	caser := cases.Title(language.English)
	for i := range words {
		words[i] = caser.String(strings.Trim(words[i], " "))
	}

	return strings.Join(words, "")
}

func getGrpcFileServiceName(decl ast.Decl) (string, string, bool) {

	if genDecl, ok := decl.(*ast.GenDecl); ok && genDecl.Tok == token.VAR {
		// 遍历变量规范
		for _, spec := range genDecl.Specs {
			// 检查是否为值规范
			if valueSpec, ok := spec.(*ast.ValueSpec); ok {
				// 遍历变量名和变量值
				for i, name := range valueSpec.Names {
					log.Println(name)
					value := valueSpec.Values[i]
					// ast.Print(fset, value)
					// 检查变量类型是否为 struct
					// 检查变量类型是否为 struct

					if v, ok := value.(*ast.CompositeLit); ok {
						// 遍历 struct 的字段
						if kv := v.Elts[0].(*ast.KeyValueExpr); ok {
							// log.Println(kv.Key)
							// log.Println(kv.Value)
							if _sname, ok := kv.Value.(*ast.BasicLit); ok {
								strlist := strings.Split(strings.Trim(_sname.Value, "\""), ".")
								if len(strlist) != 2 {
									return "", "", false
								}
								serviceName, serviceSubName := strlist[0], strlist[1]
								return serviceName, serviceSubName, true
							}

						}

					}
				}
			}
		}

	}
	return "", "", false
}

// 检测gitignore gen是否存在
func GitignoreGenCheck() {

	gitignoreFile := "./.gitignore"

	data, err := os.ReadFile(gitignoreFile)
	if err != nil {
		log.Println(err.Error())
		return
	}

	for _, line := range strings.Split(string(data), "\n") {
		if strings.Trim(line, " ") == "gen" {
			return
		}
	}

	data = append(data, []byte("\ngen\n")...)

	err = os.WriteFile(gitignoreFile, data, 0644)
	if err != nil {
		panic(err)
	}
}