// Copyright © 2023 OpenIM. All rights reserved.
//
// 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 push

import (
	"context"
	"encoding/json"
	"github.com/openimsdk/open-im-server/v3/pkg/common/webhook"

	"github.com/openimsdk/open-im-server/v3/pkg/callbackstruct"
	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
	"github.com/openimsdk/protocol/constant"
	"github.com/openimsdk/protocol/sdkws"
	"github.com/openimsdk/tools/mcontext"
)

func (c *ConsumerHandler) webhookBeforeOfflinePush(ctx context.Context, before *config.BeforeConfig, userIDs []string, msg *sdkws.MsgData, offlinePushUserIDs *[]string) error {
	return webhook.WithCondition(ctx, before, func(ctx context.Context) error {
		if msg.ContentType == constant.Typing {
			return nil
		}
		req := &callbackstruct.CallbackBeforePushReq{
			UserStatusBatchCallbackReq: callbackstruct.UserStatusBatchCallbackReq{
				UserStatusBaseCallback: callbackstruct.UserStatusBaseCallback{
					CallbackCommand: callbackstruct.CallbackBeforeOfflinePushCommand,
					OperationID:     mcontext.GetOperationID(ctx),
					PlatformID:      int(msg.SenderPlatformID),
					Platform:        constant.PlatformIDToName(int(msg.SenderPlatformID)),
				},
				UserIDList: userIDs,
			},
			OfflinePushInfo: msg.OfflinePushInfo,
			ClientMsgID:     msg.ClientMsgID,
			SendID:          msg.SendID,
			GroupID:         msg.GroupID,
			ContentType:     msg.ContentType,
			SessionType:     msg.SessionType,
			AtUserIDs:       msg.AtUserIDList,
			Content:         GetContent(msg),
		}

		resp := &callbackstruct.CallbackBeforePushResp{}

		if err := c.webhookClient.SyncPost(ctx, req.GetCallbackCommand(), req, resp, before); err != nil {
			return err
		}

		if len(resp.UserIDs) != 0 {
			*offlinePushUserIDs = resp.UserIDs
		}
		if resp.OfflinePushInfo != nil {
			msg.OfflinePushInfo = resp.OfflinePushInfo
		}
		return nil
	})
}

func (c *ConsumerHandler) webhookBeforeOnlinePush(ctx context.Context, before *config.BeforeConfig, userIDs []string, msg *sdkws.MsgData) error {
	return webhook.WithCondition(ctx, before, func(ctx context.Context) error {
		if msg.ContentType == constant.Typing {
			return nil
		}
		req := callbackstruct.CallbackBeforePushReq{
			UserStatusBatchCallbackReq: callbackstruct.UserStatusBatchCallbackReq{
				UserStatusBaseCallback: callbackstruct.UserStatusBaseCallback{
					CallbackCommand: callbackstruct.CallbackBeforeOnlinePushCommand,
					OperationID:     mcontext.GetOperationID(ctx),
					PlatformID:      int(msg.SenderPlatformID),
					Platform:        constant.PlatformIDToName(int(msg.SenderPlatformID)),
				},
				UserIDList: userIDs,
			},
			ClientMsgID: msg.ClientMsgID,
			SendID:      msg.SendID,
			GroupID:     msg.GroupID,
			ContentType: msg.ContentType,
			SessionType: msg.SessionType,
			AtUserIDs:   msg.AtUserIDList,
			Content:     GetContent(msg),
		}
		resp := &callbackstruct.CallbackBeforePushResp{}
		if err := c.webhookClient.SyncPost(ctx, req.GetCallbackCommand(), req, resp, before); err != nil {
			return err
		}
		return nil
	})
}

func (c *ConsumerHandler) webhookBeforeGroupOnlinePush(
	ctx context.Context,
	before *config.BeforeConfig,
	groupID string,
	msg *sdkws.MsgData,
	pushToUserIDs *[]string,
) error {
	return webhook.WithCondition(ctx, before, func(ctx context.Context) error {
		if msg.ContentType == constant.Typing {
			return nil
		}
		req := callbackstruct.CallbackBeforeSuperGroupOnlinePushReq{
			UserStatusBaseCallback: callbackstruct.UserStatusBaseCallback{
				CallbackCommand: callbackstruct.CallbackBeforeGroupOnlinePushCommand,
				OperationID:     mcontext.GetOperationID(ctx),
				PlatformID:      int(msg.SenderPlatformID),
				Platform:        constant.PlatformIDToName(int(msg.SenderPlatformID)),
			},
			ClientMsgID: msg.ClientMsgID,
			SendID:      msg.SendID,
			GroupID:     groupID,
			ContentType: msg.ContentType,
			SessionType: msg.SessionType,
			AtUserIDs:   msg.AtUserIDList,
			Content:     GetContent(msg),
			Seq:         msg.Seq,
		}
		resp := &callbackstruct.CallbackBeforeSuperGroupOnlinePushResp{}
		if err := c.webhookClient.SyncPost(ctx, req.GetCallbackCommand(), req, resp, before); err != nil {
			return err
		}
		if len(resp.UserIDs) != 0 {
			*pushToUserIDs = resp.UserIDs
		}
		return nil
	})
}

func GetContent(msg *sdkws.MsgData) string {
	if msg.ContentType >= constant.NotificationBegin && msg.ContentType <= constant.NotificationEnd {
		var notification sdkws.NotificationElem
		if err := json.Unmarshal(msg.Content, &notification); err != nil {
			return ""
		}
		return notification.Detail
	} else {
		return string(msg.Content)
	}
}