From 00ce05a205026f5ef0c6b223d2b44a665586f5d5 Mon Sep 17 00:00:00 2001
From: FynnTang <fzpying@gmail.com>
Date: Mon, 4 Sep 2023 14:07:54 +0800
Subject: [PATCH] feat: add permissionCode

---
 protoc-gen-go-http/http.go     | 17 +++++++++++------
 protoc-gen-go-http/template.go | 31 +++++++++++++++----------------
 2 files changed, 26 insertions(+), 22 deletions(-)

diff --git a/protoc-gen-go-http/http.go b/protoc-gen-go-http/http.go
index 7dcbc6d..49fe4bd 100644
--- a/protoc-gen-go-http/http.go
+++ b/protoc-gen-go-http/http.go
@@ -85,9 +85,13 @@ func genService(_ *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFi
 		rule, ok := proto.GetExtension(method.Desc.Options(), annotations.E_Http).(*annotations.HttpRule)
 		if rule != nil && ok {
 			for _, bind := range rule.AdditionalBindings {
-				sd.Methods = append(sd.Methods, buildHTTPRule(g, method, bind))
+				md := buildHTTPRule(g, method, bind)
+				sd.Methods = append(sd.Methods, md)
+				sd.PermissionCodes = append(sd.PermissionCodes, md.PermissionCodes...)
 			}
-			sd.Methods = append(sd.Methods, buildHTTPRule(g, method, rule))
+			md := buildHTTPRule(g, method, rule)
+			sd.Methods = append(sd.Methods, md)
+			sd.PermissionCodes = append(sd.PermissionCodes, md.PermissionCodes...)
 		} else if !omitempty {
 			path := fmt.Sprintf("/%s/%s", service.Desc.FullName(), method.Desc.Name())
 			sd.Methods = append(sd.Methods, buildMethodDesc(g, method, http.MethodPost, path))
@@ -207,14 +211,15 @@ func buildMethodDesc(g *protogen.GeneratedFile, m *protogen.Method, method, path
 		comment = "// " + m.GoName + strings.TrimPrefix(strings.TrimSuffix(comment, "\n"), "//")
 	}
 	originalComment := strings.ReplaceAll(comment, string(m.Desc.Name())+" ", "")
-	permissionCodes := make(map[string]string)
+
+	var permissionCodes []*permissionCode
 	if permissionValues := strings.Split(originalComment, "|"); len(permissionValues) > 1 {
 		for _, v := range strings.Split(strings.Split(strings.Trim(permissionValues[1], " "), " ")[0], "/") {
-			permissionCode := ""
+			permissionCodeName := ""
 			for _, code := range strings.Split(v, ":") {
-				permissionCode = permissionCode + strings.ToUpper(code[:1]) + code[1:]
+				permissionCodeName = permissionCodeName + strings.ToUpper(code[:1]) + code[1:]
 			}
-			permissionCodes[permissionCode] = v
+			permissionCodes = append(permissionCodes, &permissionCode{Name: permissionCodeName, Code: v})
 		}
 	}
 
diff --git a/protoc-gen-go-http/template.go b/protoc-gen-go-http/template.go
index aff1254..da17e60 100644
--- a/protoc-gen-go-http/template.go
+++ b/protoc-gen-go-http/template.go
@@ -10,17 +10,10 @@ var httpTemplate = `
 {{$svrType := .ServiceType}}
 {{$svrName := .ServiceName}}
 
-
-
-{{- range .MethodSets}}
-	{{ $pclen := len .PermissionCodes }} 
-	{{ if gt $pclen 1 }}
-		{{- range $k,$v := .PermissionCodes}}
-			const PermissionCode{{$k}} = "{{$v}}"
-		{{- end}}
-	{{ end }}
+{{- range .PermissionCodes}}
+	const PermissionCode{{.Name}} = "{{.Code}}"
 {{- end}}
-
+// 
 
 {{- range .MethodSets}}
 const Route{{$svrType}}{{.OriginalName}} = "{{.Path}}" {{- if ne .OriginalComment ""}} {{.OriginalComment}} {{.Method}}{{- end}}
@@ -104,12 +97,18 @@ func _{{$svrType}}_{{.Name}}{{.Num}}_HTTP_Handler(srv {{$svrType}}HTTPServer) gi
 {{end}}
 `
 
+type permissionCode struct {
+	Name string
+	Code string
+}
+
 type serviceDesc struct {
-	ServiceType string // Greeter
-	ServiceName string // helloworld.Greeter
-	Metadata    string // api/helloworld/helloworld.proto
-	Methods     []*methodDesc
-	MethodSets  map[string]*methodDesc
+	ServiceType     string // Greeter
+	ServiceName     string // helloworld.Greeter
+	Metadata        string // api/helloworld/helloworld.proto
+	Methods         []*methodDesc
+	MethodSets      map[string]*methodDesc
+	PermissionCodes []*permissionCode
 }
 
 type methodDesc struct {
@@ -121,7 +120,7 @@ type methodDesc struct {
 	Reply           string
 	Comment         string
 	OriginalComment string
-	PermissionCodes map[string]string
+	PermissionCodes []*permissionCode
 	// http_rule
 	Path         string
 	Method       string