package apps

import (
	"encoding/json"
	"strconv"

	"github.com/TeaOSLab/EdgeAdmin/internal/web/actions/actionutils"
	"github.com/TeaOSLab/EdgeAdmin/internal/web/actions/default/httpdns/httpdnsutils"
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
	"github.com/iwind/TeaGo/actions"
	"github.com/iwind/TeaGo/maps"
)

type AppSettingsAction struct {
	actionutils.ParentAction
}

func (this *AppSettingsAction) Init() {
	this.Nav("httpdns", "app", "settings")
}

func (this *AppSettingsAction) RunGet(params struct {
	AppId   int64
	Section string
}) {
	httpdnsutils.AddLeftMenu(this.Parent())

	app, err := findAppMap(this.Parent(), params.AppId)
	if err != nil {
		this.ErrorPage(err)
		return
	}

	httpdnsutils.AddAppTabbar(this.Parent(), app.GetString("name"), app.GetInt64("id"), "settings")

	section := params.Section
	if len(section) == 0 {
		section = "basic"
	}
	this.Data["activeSection"] = section

	appIDStr := strconv.FormatInt(app.GetInt64("id"), 10)
	this.Data["leftMenuItems"] = []maps.Map{
		{
			"name":     "基础配置",
			"url":      "/httpdns/apps/app/settings?appId=" + appIDStr + "&section=basic",
			"isActive": section == "basic",
		},
		{
			"name":     "认证与密钥",
			"url":      "/httpdns/apps/app/settings?appId=" + appIDStr + "&section=auth",
			"isActive": section == "auth",
		},
	}

	clusterResp, err := this.RPC().HTTPDNSClusterRPC().FindAllHTTPDNSClusters(this.AdminContext(), &pb.FindAllHTTPDNSClustersRequest{})
	if err != nil {
		this.ErrorPage(err)
		return
	}
	clusters := make([]maps.Map, 0, len(clusterResp.GetClusters()))
	clusterApiAddressMap := map[int64]string{}
	clusterNameMap := map[int64]string{}
	for _, cluster := range clusterResp.GetClusters() {
		clusterId := cluster.GetId()
		clusterName := cluster.GetName()

		port := "443"
		if rawTLS := cluster.GetTlsPolicyJSON(); len(rawTLS) > 0 {
			var tlsConfig map[string]interface{}
			if err := json.Unmarshal(rawTLS, &tlsConfig); err == nil {
				if listenRaw, ok := tlsConfig["listen"]; ok && listenRaw != nil {
					if data, err := json.Marshal(listenRaw); err == nil {
						var listenAddresses []map[string]interface{}
						if err := json.Unmarshal(data, &listenAddresses); err == nil {
							if len(listenAddresses) > 0 {
								if portRange, ok := listenAddresses[0]["portRange"].(string); ok && len(portRange) > 0 {
									port = portRange
								}
							}
						}
					}
				}
			}
		}
		apiAddress := "https://" + cluster.GetServiceDomain() + ":" + port

		clusters = append(clusters, maps.Map{
			"id":   clusterId,
			"name": clusterName,
		})
		clusterApiAddressMap[clusterId] = apiAddress
		clusterNameMap[clusterId] = clusterName
	}

	// 读取应用绑定的集群列表，取第一个作为当前选中。
	var selectedClusterId int64
	if raw := app.Get("clusterIds"); raw != nil {
		if ids, ok := raw.([]int64); ok && len(ids) > 0 {
			selectedClusterId = ids[0]
		}
	}

	// 构建服务地址列表。
	serviceAddresses := make([]maps.Map, 0)
	if selectedClusterId > 0 {
		addr := clusterApiAddressMap[selectedClusterId]
		name := clusterNameMap[selectedClusterId]
		if len(addr) > 0 {
			serviceAddresses = append(serviceAddresses, maps.Map{
				"address":     addr,
				"clusterName": name,
			})
		}
	}

	settings := maps.Map{
		"appId":               app.GetString("appId"),
		"appStatus":           app.GetBool("isOn"),
		"selectedClusterId":   selectedClusterId,
		"serviceAddresses":    serviceAddresses,
		"signEnabled":         app.GetBool("signEnabled"),
		"signSecretPlain":     app.GetString("signSecretPlain"),
		"signSecretMasked":    app.GetString("signSecretMasked"),
		"signSecretUpdatedAt": app.GetString("signSecretUpdated"),
	}
	this.Data["app"] = app
	this.Data["settings"] = settings
	this.Data["clusters"] = clusters
	this.Show()
}

func (this *AppSettingsAction) RunPost(params struct {
	AppId int64

	AppStatus bool
	ClusterId int64

	Must *actions.Must
	CSRF *actionutils.CSRF
}) {
	params.Must.Field("appId", params.AppId).Gt(0, "请选择应用")

	appResp, err := this.RPC().HTTPDNSAppRPC().FindHTTPDNSApp(this.AdminContext(), &pb.FindHTTPDNSAppRequest{
		AppDbId: params.AppId,
	})
	if err != nil {
		this.ErrorPage(err)
		return
	}
	if appResp.GetApp() == nil {
		this.Fail("找不到对应的应用")
		return
	}

	var clusterIds []int64
	if params.ClusterId > 0 {
		clusterIds = []int64{params.ClusterId}
	}
	clusterIdsJSON, _ := json.Marshal(clusterIds)

	_, err = this.RPC().HTTPDNSAppRPC().UpdateHTTPDNSApp(this.AdminContext(), &pb.UpdateHTTPDNSAppRequest{
		AppDbId:        params.AppId,
		Name:           appResp.GetApp().GetName(),
		ClusterIdsJSON: clusterIdsJSON,
		IsOn:           params.AppStatus,
		UserId:         appResp.GetApp().GetUserId(),
	})
	if err != nil {
		this.ErrorPage(err)
		return
	}

	this.Success()
}