package main

import (
	"bufio"
	"fmt"
	"io"
	"os"
	"regexp"
	"scd_check_tools/global"
	"scd_check_tools/models/bo"
	"scd_check_tools/tools"
	"strings"

	"github.com/astaxie/beego/orm"
)

//自动分析api接口及定义，并写入权限定义表
type ApiDoc struct {
}

//启动接口分析。建议在系统启动是同步开启
//仅对controller中定义的接口进行分析
//注意：原global_const_code表中的code字段长度设计为30，需要调整为200，以便写入足够长的接口地址。其中的parentcode和name都可以适当加长到100
func (c *ApiDoc) Run() {
	gofiles := map[string]string{
		"基础服务":      "./controllers/apiController.go",
		"数据导入导出服务":  "./controllers/excelController.go",
		"文件服务":      "./controllers/attachmentController.go",
		"检测任务服务":    "./controllers/taskController.go",
		"通知提醒服务":    "./controllers/noticeController.go",
		"规则配置服务":    "./controllers/rueController.go",
		"SCD校验服务":   "./controllers/scdCompController.go",
		"SCD可视化服务":  "./controllers/screenController.go",
		"统计分析服务":    "./controllers/statController.go",
		"版本及升级管理服务": "./upgrade/versionController.go",
	}
	db := orm.NewOrm()
	db.Raw("ALTER TABLE global_const_code MODIFY COLUMN `code` varchar(200)").Exec()
	db.Raw("ALTER TABLE global_const_code MODIFY COLUMN `parentcode` varchar(100)").Exec()
	db.Raw("ALTER TABLE global_const_code MODIFY COLUMN `name` varchar(100)").Exec()
	code := "pl_service"
	db.Raw("insert IGNORE into global_const_code(code,parentcode,name)values(?,?,?)", code, "sysmenu", "接口服务").Exec()
	for apiDesc, t1 := range gofiles {
		v_servicecodes := strings.Split(strings.ReplaceAll(t1, ".go", ""), "/")
		servicecode := v_servicecodes[len(v_servicecodes)-1]
		doclist, _ := c.readMethodDocLine(t1)
		if len(doclist) > 0 {
			fmt.Println(fmt.Sprintf("%s：%+v", apiDesc, doclist))
			db.Raw("insert IGNORE into global_const_code(code,parentcode,name)values(?,?,?)", servicecode, "pl_service", apiDesc).Exec()
			for _, d := range doclist {
				fmt.Println(fmt.Sprintf("%+v", d))
				db.Raw("insert IGNORE into global_const_code(code,parentcode,name)values(?,?,?)", d[1], servicecode, d[0]).Exec()
			}
		}
	}

}

//缓存接口定义。在正式环境中启用
func (c *ApiDoc) CacheApiDoc() {
	gc := new(bo.Global)
	lst, _ := gc.GetChildrenGlobalCode("pl_service")
	if len(lst) == 0 {
		return
	}
	for _, r := range lst {
		code := tools.IsEmpty(r["code"])
		global.ApiDocCache.Store(fmt.Sprintf("apidoc_%s", code), true)
		childlst, _ := gc.GetChildrenGlobalCode(code)
		if len(childlst) > 0 {
			for _, rc := range childlst {
				code = tools.IsEmpty(rc["code"])
				global.ApiDocCache.Store(fmt.Sprintf("apidoc_%s", code), true)
			}
		}
	}
}

//判断指定的api定义是否存在
func (c *ApiDoc) Exist(api string) bool {
	_, h := global.ApiDocCache.Load(fmt.Sprintf("apidoc_%s", api))
	return h
}
func (c *ApiDoc) readMethodDocLine(fileName string) ([][]string, error) {
	f, err := os.Open(fileName)
	if err != nil {
		return nil, err
	}
	buf := bufio.NewReader(f)
	var result [][]string
	var comments_summary = false
	var notAuth = true
	comments_summary_text := ""
	reg := regexp.MustCompile("\\s+") //去除空白字符，包括空格、tab等
	regPostGet := regexp.MustCompile("\\[.*?\\]")
	for {
		line, err := buf.ReadString('\n')
		if err != nil {
			if err == io.EOF { //读取结束，会报EOF
				return result, nil
			}
			return nil, err
		}
		line = reg.ReplaceAllString(line, "")
		if strings.HasPrefix(line, "//@NotAuth") {
			notAuth = false
		}
		if strings.HasPrefix(line, "//@Summary") || strings.HasPrefix(line, "//@Title") {
			if comments_summary {
				continue
			}
			comments_summary = true
			comments_summary_text = line[10:]
		}
		if strings.HasPrefix(line, "//@router") {
			if comments_summary && notAuth {
				result = append(result, []string{comments_summary_text, "/api" + regPostGet.ReplaceAllString(line[9:], "")})
			}
			comments_summary_text = ""
			comments_summary = false
			notAuth = true
		}
	}
	return result, nil
}