98 lines
2 KiB
Go
98 lines
2 KiB
Go
// Copyright (C) 2018 Marius Schellenberger
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package index
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import (
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"errors"
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"git.giftfish.de/ston1th/gowiki/pkg/core"
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"github.com/blevesearch/bleve"
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"html/template"
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"os"
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)
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const maxSearchResult = 101
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type indexPage struct {
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Title string `json:"title"`
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StoreTitle string `json:"store_title"`
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Search string `json:"search"`
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}
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type Index struct {
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i bleve.Index
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}
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func NewIndex(path string) (i *Index, err error) {
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var bi bleve.Index
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if _, err = os.Stat(path); os.IsNotExist(err) {
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mapping := bleve.NewIndexMapping()
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bi, err = bleve.New(path, mapping)
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if err != nil {
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err = errors.New("index: " + err.Error())
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return
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}
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} else {
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bi, err = bleve.Open(path)
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if err != nil {
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err = errors.New("index: " + err.Error())
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return
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}
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}
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i = &Index{i: bi}
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return
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}
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func (i *Index) Close() error {
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return i.i.Close()
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}
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func (i *Index) Add(title, storeTitle, search string) error {
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doc, _ := i.i.Document(storeTitle)
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if doc != nil {
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err := i.Delete(storeTitle)
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if err != nil {
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return err
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}
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}
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return i.i.Index(storeTitle, indexPage{title, storeTitle, search})
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}
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func (i *Index) Delete(storeTitle string) error {
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return i.i.Delete(storeTitle)
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}
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func (i *Index) Search(search string) (results []core.Result, err error) {
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req := bleve.NewSearchRequest(bleve.NewQueryStringQuery("title:" + search + " search:" + search))
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req.Highlight = bleve.NewHighlightWithStyle("html")
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req.Size = maxSearchResult
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res, err := i.i.Search(req)
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if err != nil {
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return
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}
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for _, hit := range res.Hits {
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if hit == nil {
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continue
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}
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r := core.Result{StoreTitle: hit.ID}
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d, err := i.i.Document(hit.ID)
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if d == nil || err != nil {
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continue
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}
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for _, v := range d.Fields {
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if v.Name() == "title" {
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r.Title = string(v.Value())
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break
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}
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}
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for fragField, frags := range hit.Fragments {
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if fragField == "title" || fragField == "search" {
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for _, f := range frags {
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r.HTML += template.HTML(f)
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}
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break
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}
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}
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results = append(results, r)
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}
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return
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}
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