package main

import (
	"dsBaseWeb/Utils/CommonUtil"
	"dsBaseWeb/Utils/ConfigUtil"
	"dsBaseWeb/Utils/DbUtil"
	"fmt"
	"github.com/lunny/log"
	"io/ioutil"
	"os"
	"os/exec"
	"strconv"
	"strings"
)

func main() {

	//1、遍历数据库所有的表
	sql := "select table_name from information_schema.tables where table_schema=?"
	list, _ := DbUtil.Engine.SQL(sql, ConfigUtil.MysqlDbName).QueryString()

	for i := 0; i < len(list); i++ {
		tableName := list[i]["table_name"]
		//查询所有字段
		sql2 := "select column_name,data_type,column_comment,column_key from information_schema.columns where table_schema=? and table_name=?"
		listField, _ := DbUtil.Engine.SQL(sql2, ConfigUtil.MysqlDbName, tableName).QueryString()
		tableName = CommonUtil.GetSnakeCaseStr(strings.Replace(tableName, "t_", "", -1))

		str := `syntax = "proto3";` + "\n\n"

		str += `//在web层重新生成pb.go的方法 `+ "\n"

		str +=`/*`+"\n"
		str += `protoc -I Business/` + tableName + "/" + tableName + "Proto" + `/ Business/` + tableName + `/` + tableName + "Proto/" + tableName + `.proto --go_out=plugins=grpc:Business/` + tableName + "/" + tableName + "Proto" + "\n"
		str +=`*/`+"\n"

		str += `package ` + tableName + `Proto;` + "\n\n"

		//golang中的包
		str += `option go_package = ".;` + tableName + `Proto";` + "\n\n"

		//用于生成java的代码配置
		str += `option java_multiple_files = true;` + "\n"
		str += `option java_package = "com.dsideal.dsmin.base";` + "\n"
		str += `option java_outer_classname = "` + tableName + `";` + "\n"
		str += `option objc_class_prefix = "";` + "\n\n"

		//暴露的接口
		str += `service ` + tableName + `Manage {` + "\n"
		str += "  //获取单条\n"
		str += `  rpc Get` + tableName + ` (ModelArg) returns (Reply) {}` + "\n"
		str += "  //增加\n"
		str += `  rpc Add` + tableName + ` (ModelArg) returns (Reply) {}` + "\n"
		str += "  //批量删除\n"
		str += `  rpc Delete` + tableName + ` (DeleteIdsArg) returns (Reply) {}` + "\n"
		str += "  //修改\n"
		str += `  rpc Update` + tableName + ` (ModelArg) returns (Reply) {}` + "\n"
		str += "  //查询(分页)\n"
		str += `  rpc Page` + tableName + ` (QueryArg) returns (Reply) {}` + "\n"
		str += `}` + "\n\n"

		str += "message ModelArg {\n"
		for j := 0; j < len(listField); j++ {
			columnName := listField[j]["column_name"]
			//这个属性不用生成了 黄海添加于2020-04-26
			if columnName == "LastUpdatedTime " {
				continue
			}
			dataType := listField[j]["data_type"]
			columnComment := listField[j]["column_comment"]
			str += "  //" + columnComment + "\n"
			if dataType == "int" || dataType == "tinyint" {
				str += "  int32 " + CommonUtil.GetSnakeCaseStr(columnName) + " = " + strconv.Itoa(j+1) + ";\n"
			}else if dataType == "float" || dataType == "double"  {
				str += "  float " + CommonUtil.GetSnakeCaseStr(columnName) + " = " + strconv.Itoa(j+1) + ";\n"
			}else {
				str += "  string " + CommonUtil.GetSnakeCaseStr(columnName) + " = " + strconv.Itoa(j+1) + ";\n"
			}
		}
		//添加ForceUpdateFields 黄海添加于2020-05-20
		str+="  //需要强制更新的列"+"\n"
		str+="  repeated string ForceUpdateFields = "+ strconv.Itoa(len(listField)+1)+";"+"\n"

		str += "}\n\n"

		//查询参数
		str += "// 查询参数\n"
		str += "message QueryArg{\n"
		str += "	int32 Page = 1;\n"
		str += "	int32 Limit = 2;\n"
		str += "}\n\n"

		//查询请求响应内容
		str += "// 查询请求响应\n"
		str += "message Reply{\n"
		str += "  bool Success = 1;\n"
		str += "  string Message = 2;\n"
		str += "  int32 Count = 3;\n"
		str += "  string List = 4;\n"
		str += "}\n"

		//删除参数
		str += "//删除参数\n"
		str += "message DeleteIdsArg {\n"
		str += "  //一个或多个ID\n"
		str += "  repeated string Ids = 1;\n"
		str += "}\n"

		//按文件分别保存
		workingPath := "./Tools/proto/" + tableName + "/" + tableName + "Proto/"
		if !CommonUtil.Exists(workingPath) {
			err := os.MkdirAll(workingPath, os.ModePerm)
			if err != nil {
				log.Fatal(err)
			}
		}
		path := workingPath + tableName + ".proto"
		ioutil.WriteFile(path, []byte(str), 0666)
		//生成一次pb.go
		cmd := "protoc -I Tools/proto/" + tableName + "/" + tableName + "Proto/ Tools/proto/" + tableName + "/" + tableName + "Proto/" + tableName + ".proto --go_out=plugins=grpc:Tools/proto/" + tableName + "/" + tableName + "Proto"
		runInWindows(cmd)
	}
	fmt.Println("恭喜，所有表对应的proto文件内容生成成功！")
}

/**
功能：在windows下执行一次dos命令
作者：黄海
时间：2020-05-06
*/
func runInWindows(cmd string) string {
	fmt.Println("Running Win cmd:", cmd)
	result, err := exec.Command("cmd", "/c", cmd).Output()
	if err != nil {
		fmt.Println(err.Error())
	}
	return strings.TrimSpace(string(result))
}