package actionutils
import (
	"encoding/json"
	"errors"
	"fmt"
	"github.com/TeaOSLab/EdgeAdmin/internal/configloaders"
	"github.com/TeaOSLab/EdgeAdmin/internal/configs"
	"github.com/TeaOSLab/EdgeCommon/pkg/langs/codes"
	rpcerrors "github.com/TeaOSLab/EdgeCommon/pkg/rpc/errors"
	"github.com/iwind/TeaGo/Tea"
	"github.com/iwind/TeaGo/actions"
	"github.com/iwind/TeaGo/logs"
	"github.com/iwind/TeaGo/maps"
	"github.com/iwind/gosock/pkg/gosock"
	"net"
	"net/http"
	"os"
	"path/filepath"
	"reflect"
	"runtime"
	"strings"
	"time"
)
// Fail 提示服务器错误信息
func Fail(actionPtr actions.ActionWrapper, err error) {
	if err == nil {
		err = errors.New("unknown error")
	}
	var langCode = configloaders.FindAdminLangForAction(actionPtr)
	var serverErrString = codes.AdminCommon_ServerError.For(langCode)
	logs.Println("[" + reflect.TypeOf(actionPtr).String() + "]" + findStack(err.Error()))
	_, _, isLocalAPI, issuesHTML := parseAPIErr(actionPtr, err)
	if isLocalAPI && len(issuesHTML) > 0 {
		actionPtr.Object().Fail(serverErrString + "(" + err.Error() + ";最近一次错误提示:" + issuesHTML + ")")
	} else {
		actionPtr.Object().Fail(serverErrString + "(" + err.Error() + ")")
	}
}
// FailPage 提示页面错误信息
func FailPage(actionPtr actions.ActionWrapper, err error) {
	if err == nil {
		err = errors.New("unknown error")
	}
	var langCode = configloaders.FindAdminLangForAction(actionPtr)
	var serverErrString = codes.AdminCommon_ServerError.For(langCode)
	logs.Println("[" + reflect.TypeOf(actionPtr).String() + "]" + findStack(err.Error()))
	actionPtr.Object().ResponseWriter.WriteHeader(http.StatusInternalServerError)
	if len(actionPtr.Object().Request.Header.Get("X-Requested-With")) > 0 {
		actionPtr.Object().WriteString(serverErrString)
	} else {
		apiNodeIsStarting, apiNodeProgress, _, issuesHTML := parseAPIErr(actionPtr, err)
		var html = `
	
		正在处理...
		
		
	
	
	
	`
		if apiNodeIsStarting { // API节点正在启动
			html += "
API节点正在启动,请耐心等待完成"
			if len(apiNodeProgress) > 0 {
				html += ":" + apiNodeProgress + "(刷新当前页面查看最新状态)"
			}
			html += "
"
		} else {
			html += serverErrString + `
		
可以通过查看 $安装目录/logs/run.log 日志文件查看具体的错误提示。
		
		Error: ` + err.Error() + `
`
			if len(issuesHTML) > 0 {
				html += `        
        ` + issuesHTML + `
`
			}
		}
		actionPtr.Object().WriteString(html + `
		
 
	
`)
	}
}
// MatchPath 判断动作的文件路径是否相当
func MatchPath(action *actions.ActionObject, path string) bool {
	return action.Request.URL.Path == path
}
// FindParentAction 查找父级Action
func FindParentAction(actionPtr actions.ActionWrapper) *ParentAction {
	parentActionValue := reflect.ValueOf(actionPtr).Elem().FieldByName("ParentAction")
	if parentActionValue.IsValid() {
		parentAction, isOk := parentActionValue.Interface().(ParentAction)
		if isOk {
			return &parentAction
		}
	}
	return nil
}
func findStack(err string) string {
	_, currentFilename, _, currentOk := runtime.Caller(1)
	if currentOk {
		for i := 1; i < 32; i++ {
			_, filename, lineNo, ok := runtime.Caller(i)
			if !ok {
				break
			}
			if filename == currentFilename || filepath.Base(filename) == "parent_action.go" {
				continue
			}
			goPath := os.Getenv("GOPATH")
			if len(goPath) > 0 {
				absGoPath, err := filepath.Abs(goPath)
				if err == nil {
					filename = strings.TrimPrefix(filename, absGoPath)[1:]
				}
			} else if strings.Contains(filename, "src") {
				filename = filename[strings.Index(filename, "src"):]
			}
			err += "\n\t\t" + string(filename) + ":" + fmt.Sprintf("%d", lineNo)
			break
		}
	}
	return err
}
// 分析API节点的错误信息
func parseAPIErr(action actions.ActionWrapper, err error) (apiNodeIsStarting bool, apiNodeProgress string, isLocalAPI bool, issuesHTML string) {
	// 当前API终端地址
	var apiEndpoints = []string{}
	apiConfig, apiConfigErr := configs.LoadAPIConfig()
	if apiConfigErr == nil && apiConfig != nil {
		apiEndpoints = append(apiEndpoints, apiConfig.RPC.Endpoints...)
	}
	var isRPCConnError bool
	err, isRPCConnError = rpcerrors.HumanError(err, apiEndpoints, Tea.ConfigFile("api.yaml"))
	if isRPCConnError {
		// API节点是否正在启动
		var sock = gosock.NewTmpSock("edge-api")
		reply, err := sock.SendTimeout(&gosock.Command{
			Code:   "starting",
			Params: nil,
		}, 1*time.Second)
		if err == nil && reply != nil {
			var params = maps.NewMap(reply.Params)
			if params.GetBool("isStarting") {
				apiNodeIsStarting = true
				var progressMap = params.GetMap("progress")
				apiNodeProgress = progressMap.GetString("description")
			}
		}
	}
	// 本地的一些错误提示
	if isRPCConnError {
		host, _, hostErr := net.SplitHostPort(action.Object().Request.Host)
		if hostErr == nil {
			for _, endpoint := range apiEndpoints {
				if strings.HasPrefix(endpoint, "http://"+host) || strings.HasPrefix(endpoint, "https://"+host) || strings.HasPrefix(endpoint, host) {
					isLocalAPI = true
					break
				}
			}
		}
	}
	if isLocalAPI {
		// 读取本地API节点的issues
		issuesData, issuesErr := os.ReadFile(Tea.Root + "/edge-api/logs/issues.log")
		if issuesErr == nil {
			var issueMaps = []maps.Map{}
			issuesErr = json.Unmarshal(issuesData, &issueMaps)
			if issuesErr == nil && len(issueMaps) > 0 {
				var issueMap = issueMaps[0]
				issuesHTML = "本地API节点启动错误:" + issueMap.GetString("message") + ",处理建议:" + issueMap.GetString("suggestion")
			}
		}
	}
	return
}