// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package models

import (
	"context"
	"fmt"
	"strings"

	"golang.org/x/text/language"

	"yunion.io/x/jsonutils"
	"yunion.io/x/log"
	"yunion.io/x/pkg/errors"
	"yunion.io/x/pkg/tristate"
	"yunion.io/x/pkg/utils"
	"yunion.io/x/sqlchemy"

	"yunion.io/x/onecloud/pkg/apis"
	api "yunion.io/x/onecloud/pkg/apis/notify"
	"yunion.io/x/onecloud/pkg/cloudcommon/db"
	"yunion.io/x/onecloud/pkg/httperrors"
	"yunion.io/x/onecloud/pkg/mcclient"
	"yunion.io/x/onecloud/pkg/util/stringutils2"
)

type SRobotManager struct {
	db.SSharableVirtualResourceBaseManager
	db.SEnabledResourceBaseManager
}

var RobotManager *SRobotManager

func init() {
	RobotManager = &SRobotManager{
		SSharableVirtualResourceBaseManager: db.NewSharableVirtualResourceBaseManager(
			SRobot{},
			"robots_tbl",
			"robot",
			"robots",
		),
	}
	RobotManager.SetVirtualObject(RobotManager)
}

type SRobot struct {
	db.SSharableVirtualResourceBase
	db.SEnabledResourceBase

	Type    string               `width:"16" nullable:"false" create:"required" get:"user" list:"user" index:"true"`
	Address string               `nullable:"false" create:"required" update:"user" get:"user" list:"user"`
	Lang    string               `width:"16" nullable:"false" create:"required" update:"user" get:"user" list:"user"`
	Header  jsonutils.JSONObject `length:"long" charset:"utf8" nullable:"true" list:"user" create:"optional" update:"user"`
	Body    jsonutils.JSONObject `length:"long" charset:"utf8" nullable:"true" list:"user" create:"optional" update:"user"`
	MsgKey  string               `width:"16" nullable:"true"  update:"user" get:"user" list:"user"`
	// webhook 签名加密
	SecretKey   string            `width:"128" nullable:"true" update:"user"`
	UseTemplate tristate.TriState `default:"false" list:"domain" update:"user" create:"admin_optional"`
}

var RobotList = []string{api.FEISHU_ROBOT, api.DINGTALK_ROBOT, api.WORKWX_ROBOT, api.WEBHOOK, api.WEBHOOK_ROBOT}

func (rm *SRobotManager) ValidateCreateData(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, query jsonutils.JSONObject, input api.RobotCreateInput) (api.RobotCreateInput, error) {
	var err error
	input.SharableVirtualResourceCreateInput, err = rm.SSharableVirtualResourceBaseManager.ValidateCreateData(ctx, userCred, ownerId, query, input.SharableVirtualResourceCreateInput)
	if err != nil {
		return input, errors.Wrap(err, "SSharableVirtualResourceBaseManager.ValidateCreateData")
	}
	// check type
	if !utils.IsInStringArray(fmt.Sprintf("%s-robot", input.Type), GetRobotTypes()) {
		return input, httperrors.NewInputParameterError("unkown type %s support: %s", input.Type, GetRobotTypes())
	}
	// check lang
	if input.Lang == "" {
		input.Lang = "zh_CN"
	}
	// check Address
	_, err = language.Parse(input.Lang)
	if err != nil {
		return input, errors.Wrap(err, "unable to validate address")
	}
	input.SetEnabled()
	input.Status = api.ROBOT_STATUS_READY
	driver := GetDriver(fmt.Sprintf("%s-robot", input.Type))
	err = driver.Send(ctx, api.SendParams{
		Receivers: api.SNotifyReceiver{
			Contact:  input.Address,
			DomainId: input.ProjectDomainId,
		},
		Header:    input.Header,
		Body:      input.Body,
		MsgKey:    input.MsgKey,
		SecretKey: input.SecretKey,
		Title:     "Validate",
		Message:   "This is a verification message, please ignore.",
	})
	if err != nil {
		if errors.ErrConnectRefused == errors.Cause(err) {
			return input, errors.Wrapf(errors.ErrNotImplemented, "url not allow :%s", err.Error())
		}
		return input, errors.Wrap(err, "robot validate")
	}

	return input, nil
}

func (rm *SRobotManager) FetchCustomizeColumns(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, objs []interface{}, fields stringutils2.SSortedStrings, isList bool) []api.RobotDetails {
	sRows := rm.SSharableVirtualResourceBaseManager.FetchCustomizeColumns(ctx, userCred, query, objs, fields, isList)
	rows := make([]api.RobotDetails, len(objs))
	for i := range rows {
		rows[i].SharableVirtualResourceDetails = sRows[i]
	}
	return rows
}

func (rm *SRobotManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQuery, userCred mcclient.TokenCredential, input api.RobotListInput) (*sqlchemy.SQuery, error) {
	q, err := rm.SSharableVirtualResourceBaseManager.ListItemFilter(ctx, q, userCred, input.SharableVirtualResourceListInput)
	if err != nil {
		return nil, err
	}
	q, err = rm.SEnabledResourceBaseManager.ListItemFilter(ctx, q, userCred, input.EnabledResourceBaseListInput)
	if err != nil {
		return nil, err
	}
	if len(input.Type) > 0 {
		q = q.Equals("type", input.Type)
	}
	if len(input.Lang) > 0 {
		q = q.Equals("lang", input.Lang)
	}
	return q, nil
}

func (r *SRobot) ValidateUpdateData(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input api.RobotUpdateInput) (api.RobotUpdateInput, error) {
	var err error
	input.SharableVirtualResourceBaseUpdateInput, err = r.SSharableVirtualResourceBase.ValidateUpdateData(ctx, userCred, query, input.SharableVirtualResourceBaseUpdateInput)
	if err != nil {
		return input, errors.Wrap(err, "SSharableVirtualResourceBase.ValidateUpdateData")
	}
	// check lang
	if len(input.Lang) > 0 {
		_, err = language.Parse(input.Lang)
		if err != nil {
			return input, httperrors.NewInputParameterError("invalid lang %q: %s", input.Lang, err.Error())
		}
	}
	if len(input.Address) > 0 {
		// check Address
		driver := GetDriver(fmt.Sprintf("%s-robot", r.Type))
		err := driver.Send(ctx, api.SendParams{
			Header:    input.Header,
			Body:      input.Body,
			MsgKey:    input.MsgKey,
			SecretKey: input.SecretKey,
			Title:     "Validate",
			Message:   "This is a verification message, please ignore.",
			Receivers: api.SNotifyReceiver{
				Contact: input.Address,
			},
		})
		if err != nil {
			if errors.ErrConnectRefused == errors.Cause(err) {
				return input, errors.Wrapf(errors.ErrNotImplemented, "url not allow :%s", err.Error())
			}
			return input, errors.Wrap(err, "unable to validate address")
		}
	}
	return input, nil
}

func (r *SRobot) PostUpdate(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) {
	db.Update(r, func() error {
		header, ok := data.Get("header")
		if ok == nil && header.IsZero() {
			r.Header = nil
		}
		body, ok := data.Get("body")
		if ok == nil && body.IsZero() {
			r.Body = nil
		}
		return nil
	})
}

func (r *SRobot) CustomizeCreate(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, query jsonutils.JSONObject, data jsonutils.JSONObject) error {
	err := r.SSharableVirtualResourceBase.CustomizeCreate(ctx, userCred, ownerId, query, data)
	if err != nil {
		return err
	}
	r.Enabled = tristate.True
	r.Status = api.ROBOT_STATUS_READY
	return nil
}

func (rm *SRobotManager) FetchByIdOrNames(ctx context.Context, idOrNames ...string) ([]SRobot, error) {
	if len(idOrNames) == 0 {
		return nil, nil
	}
	var err error
	q := idOrNameFilter(rm.Query(), idOrNames...)
	robots := make([]SRobot, 0, len(idOrNames))
	err = db.FetchModelObjects(rm, q, &robots)
	if err != nil {
		return nil, err
	}
	return robots, nil
}

func (r *SRobot) IsEnabled() bool {
	return r.Enabled.Bool()
}

func (r *SRobot) IsEnabledContactType(ctype string) (bool, error) {
	return strings.Contains(ctype, api.ROBOT) || ctype == api.WEBHOOK, nil
}

func (r *SRobot) IsVerifiedContactType(ctype string) (bool, error) {
	return utils.IsInStringArray(ctype, RobotList), nil
}

func (r *SRobot) IsRobot() bool {
	return true
}

func (r *SRobot) IsReceiver() bool {
	return false
}

func (r *SRobot) GetContact(ctype string) (string, error) {
	return r.Address, nil
}

func (r *SRobot) GetTemplateLang(ctx context.Context) (string, error) {
	lang, err := language.Parse(r.Lang)
	if err != nil {
		return "", errors.Wrapf(err, "unable to prase language %q", r.Lang)
	}
	tLang := notifyclientI18nTable.LookupByLang(lang, tempalteLang)
	return tLang, nil
}

func (r *SRobot) GetDomainId() string {
	return r.DomainId
}

func (r *SRobot) PerformEnable(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input apis.PerformEnableInput) (jsonutils.JSONObject, error) {
	err := db.EnabledPerformEnable(r, ctx, userCred, true)
	if err != nil {
		return nil, errors.Wrap(err, "EnabledPerformEnable")
	}
	return nil, nil
}

func (r *SRobot) PerformDisable(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input apis.PerformDisableInput) (jsonutils.JSONObject, error) {
	err := db.EnabledPerformEnable(r, ctx, userCred, false)
	if err != nil {
		return nil, errors.Wrap(err, "EnabledPerformEnable")
	}
	return nil, nil
}

func (r *SRobot) PostDelete(ctx context.Context, userCred mcclient.TokenCredential) {
	q := SubscriberManager.Query().Equals("type", api.SUBSCRIBER_TYPE_ROBOT).Equals("identification", r.GetId())
	subscribers := make([]SSubscriber, 0, 2)
	err := db.FetchModelObjects(SubscriberManager, q, &subscribers)
	if err != nil {
		log.Errorf("unable to fetch subscribers with robot %q", r.GetId())
		return
	}
	for i := range subscribers {
		subscriber := &subscribers[i]
		_, err := db.Update(r, func() error {
			return subscriber.MarkDelete()
		})
		if err != nil {
			log.Errorf("unable to delete subscriber %q because of deleting of robot %q", subscribers[i].GetId(), r.GetId())
		}
	}
}

func GetRobotTypeById(id string) (string, error) {
	imode, err := RobotManager.FetchById(id)
	if err != nil {
		return "", errors.Wrap(err, "FetchById")
	}
	log.Infoln("this is robot:", jsonutils.Marshal(imode))
	robot := imode.(*SRobot)
	return robot.Type, nil
}

func (r *SRobot) GetName() string {
	return r.Name
}