package easyophdl

import (
	"encoding/json"
	"fmt"
	"git.swzry.com/zry/go-zSshRpcServer/server"
	"github.com/tidwall/gjson"
	"golang.org/x/crypto/ssh"
)

type EasyOpHdlRequest struct {
	RawRequest      zsshrpc_server.ZSshRpcOperationRequest
	isGJsonProc     bool
	gjsonResult     gjson.Result
	isErrHappend    bool
	isJsonProcError bool
	errMsg          string
	logger          zsshrpc_server.SvrLogFunc
}

func (this *EasyOpHdlRequest) GetMethodName() string {
	return zsshrpc_server.GetOperationMethodName(this.RawRequest.Method)
}

func (this *EasyOpHdlRequest) GetUserName() string {
	return this.RawRequest.ChannelContext.SessionCtx.ServerConn.User()
}

func (this *EasyOpHdlRequest) GetPermissions() *ssh.Permissions {
	return this.RawRequest.ChannelContext.SessionCtx.ServerConn.Permissions
}

func (this *EasyOpHdlRequest) WriteLogInfo(msg string) {
	this.writeLog(zsshrpc_server.SvrLogLevel_INFO, msg)
}

func (this *EasyOpHdlRequest) WriteLogDebug(msg string) {
	this.writeLog(zsshrpc_server.SvrLogLevel_DEBUG, msg)
}

func (this *EasyOpHdlRequest) WriteErrLog(msg string, err error) {
	this.writeLogWithError(zsshrpc_server.SvrLogLevel_WARNING, msg, err)
}

func (this *EasyOpHdlRequest) writeLog(level int, msg string) {
	this.writeLogWithError(level, msg, nil)
}

func (this *EasyOpHdlRequest) writeLogWithError(level int, msg string, err error) {
	this.logger(level, fmt.Sprint("Backend ", this.RawRequest.URI, " Handler Log: ", msg), err)
}

func (this *EasyOpHdlRequest) GetClientVersion() string {
	return string(this.RawRequest.ChannelContext.SessionCtx.ServerConn.ClientVersion())
}

func (this *EasyOpHdlRequest) GetRemoteAddr() string {
	return this.RawRequest.ChannelContext.SessionCtx.ServerConn.RemoteAddr().String()
}

func (this *EasyOpHdlRequest) ProcGJson() {
	this.gjsonResult = gjson.Parse(this.RawRequest.JSON)
	this.isGJsonProc = true
}

func (this *EasyOpHdlRequest) GJsonGet(path string) *gjson.Result {
	if this.isGJsonProc {
		gjo := this.gjsonResult.Get(path)
		return &gjo
	} else {
		this.isErrHappend = true
		this.errMsg = "Do GJson Getting Operation Before ProcGJson."
		this.doErrLog()
		return nil
	}
}

func (this *EasyOpHdlRequest) ProcRegularJson(v interface{}) bool {
	err := json.Unmarshal([]byte(this.RawRequest.JSON), v)
	if err != nil {
		this.isErrHappend = true
		this.isJsonProcError = true
		this.errMsg = fmt.Sprint("Failed ProcRegularJson: ", err)
		this.doErrLog()
		return false
	}
	return true
}

func (this *EasyOpHdlRequest) doErrLog() {
	if this.isErrHappend {
		this.logger(zsshrpc_server.SvrLogLevel_WARNING,
			fmt.Sprint("Internal Error: ", this.errMsg),
			nil,
		)
	}
}