plugin/search.go

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 plugin

import (
	"context"
)

type SearchResult struct {
	// ID content ID
	ID string
	// Type content type, example: "answer", "question"
	Type string
}

type SearchContent struct {
	ObjectID    string              `json:"objectID"`
	Title       string              `json:"title"`
	Type        string              `json:"type"`
	Content     string              `json:"content"`
	Answers     int64               `json:"answers"`
	Status      SearchContentStatus `json:"status"`
	Tags        []string            `json:"tags"`
	QuestionID  string              `json:"questionID"`
	UserID      string              `json:"userID"`
	Views       int64               `json:"views"`
	Created     int64               `json:"created"`
	Active      int64               `json:"active"`
	Score       int64               `json:"score"`
	HasAccepted bool                `json:"hasAccepted"`
}

type SearchBasicCond struct {
	// From zero-based page number
	Page int
	// Page size
	PageSize int

	// The keywords for search.
	Words []string
	// TagIDs is a list of tag IDs.
	TagIDs [][]string
	// The object's owner user ID.
	UserID string
	// The order of the search result.
	Order SearchOrderCond

	// Weathers the question is accepted or not. Only support search question.
	QuestionAccepted SearchAcceptedCond
	// Weathers the answer is accepted or not. Only support search answer.
	AnswerAccepted SearchAcceptedCond

	// Only support search answer.
	QuestionID string

	// greater than or equal to the number of votes.
	VoteAmount int
	// greater than or equal to the number of views.
	ViewAmount int
	// greater than or equal to the number of answers. Only support search question.
	AnswerAmount int
}

type SearchAcceptedCond int
type SearchContentStatus int
type SearchOrderCond string

const (
	AcceptedCondAll SearchAcceptedCond = iota
	AcceptedCondTrue
	AcceptedCondFalse
)

const (
	SearchContentStatusAvailable = 1
	SearchContentStatusDeleted   = 10
)

const (
	SearchNewestOrder    SearchOrderCond = "newest"
	SearchActiveOrder    SearchOrderCond = "active"
	SearchScoreOrder     SearchOrderCond = "score"
	SearchRelevanceOrder SearchOrderCond = "relevance"
)

type Search interface {
	Base
	Description() SearchDesc
	RegisterSyncer(ctx context.Context, syncer SearchSyncer)
	SearchContents(ctx context.Context, cond *SearchBasicCond) (res []SearchResult, total int64, err error)
	SearchQuestions(ctx context.Context, cond *SearchBasicCond) (res []SearchResult, total int64, err error)
	SearchAnswers(ctx context.Context, cond *SearchBasicCond) (res []SearchResult, total int64, err error)
	UpdateContent(ctx context.Context, content *SearchContent) (err error)
	DeleteContent(ctx context.Context, objectID string) (err error)
}

type SearchDesc struct {
	// A svg icon it wil be display in search result page. optional
	Icon string `json:"icon"`
	// The link address of the search engine. optional
	Link string `json:"link"`
}

type SearchSyncer interface {
	GetAnswersPage(ctx context.Context, page, pageSize int) (answerList []*SearchContent, err error)
	GetQuestionsPage(ctx context.Context, page, pageSize int) (questionList []*SearchContent, err error)
}

var (
	// CallSearch is a function that calls all registered parsers
	CallSearch,
	registerSearch = MakePlugin[Search](false)
)