1 files changed, 98 insertions, 0 deletions

diff --git a/modules/indexer/issues/meilisearch/meilisearch.go b/modules/indexer/issues/meilisearch/meilisearch.go
new file mode 100644
index 0000000000..877c04f1dc
--- /dev/null
+++ b/modules/indexer/issues/meilisearch/meilisearch.go
@@ -0,0 +1,98 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package meilisearch
+
+import (
+	"context"
+	"strconv"
+	"strings"
+
+	indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
+	inner_meilisearch "code.gitea.io/gitea/modules/indexer/internal/meilisearch"
+	"code.gitea.io/gitea/modules/indexer/issues/internal"
+
+	"github.com/meilisearch/meilisearch-go"
+)
+
+const (
+	issueIndexerLatestVersion = 0
+)
+
+var _ internal.Indexer = &Indexer{}
+
+// Indexer implements Indexer interface
+type Indexer struct {
+	inner                    *inner_meilisearch.Indexer
+	indexer_internal.Indexer // do not composite inner_meilisearch.Indexer directly to avoid exposing too much
+}
+
+// NewIndexer creates a new meilisearch indexer
+func NewIndexer(url, apiKey, indexerName string) *Indexer {
+	inner := inner_meilisearch.NewIndexer(url, apiKey, indexerName, issueIndexerLatestVersion)
+	indexer := &Indexer{
+		inner:   inner,
+		Indexer: inner,
+	}
+	return indexer
+}
+
+// Index will save the index data
+func (b *Indexer) Index(_ context.Context, issues []*internal.IndexerData) error {
+	if len(issues) == 0 {
+		return nil
+	}
+	for _, issue := range issues {
+		_, err := b.inner.Client.Index(b.inner.VersionedIndexName()).AddDocuments(issue)
+		if err != nil {
+			return err
+		}
+	}
+	// TODO: bulk send index data
+	return nil
+}
+
+// Delete deletes indexes by ids
+func (b *Indexer) Delete(_ context.Context, ids ...int64) error {
+	if len(ids) == 0 {
+		return nil
+	}
+
+	for _, id := range ids {
+		_, err := b.inner.Client.Index(b.inner.VersionedIndexName()).DeleteDocument(strconv.FormatInt(id, 10))
+		if err != nil {
+			return err
+		}
+	}
+	// TODO: bulk send deletes
+	return nil
+}
+
+// Search searches for issues by given conditions.
+// Returns the matching issue IDs
+func (b *Indexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*internal.SearchResult, error) {
+	repoFilters := make([]string, 0, len(repoIDs))
+	for _, repoID := range repoIDs {
+		repoFilters = append(repoFilters, "repo_id = "+strconv.FormatInt(repoID, 10))
+	}
+	filter := strings.Join(repoFilters, " OR ")
+	searchRes, err := b.inner.Client.Index(b.inner.VersionedIndexName()).Search(keyword, &meilisearch.SearchRequest{
+		Filter: filter,
+		Limit:  int64(limit),
+		Offset: int64(start),
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	hits := make([]internal.Match, 0, len(searchRes.Hits))
+	for _, hit := range searchRes.Hits {
+		hits = append(hits, internal.Match{
+			ID: int64(hit.(map[string]interface{})["id"].(float64)),
+		})
+	}
+	return &internal.SearchResult{
+		Total: searchRes.TotalHits,
+		Hits:  hits,
+	}, nil
+}