Added arn to the main repository

arn/search/Posts.go

@@ -0,0 +1,41 @@
+package search
+
+import (
+	"sort"
+	"strings"
+
+	"github.com/animenotifier/notify.moe/arn"
+	"github.com/animenotifier/notify.moe/arn/stringutils"
+)
+
+// Posts searches all posts.
+func Posts(originalTerm string, maxLength int) []*arn.Post {
+	term := strings.ToLower(stringutils.RemoveSpecialCharacters(originalTerm))
+	results := make([]*arn.Post, 0, maxLength)
+
+	for post := range arn.StreamPosts() {
+		if post.ID == originalTerm {
+			return []*arn.Post{post}
+		}
+
+		text := strings.ToLower(post.Text)
+
+		if !strings.Contains(text, term) {
+			continue
+		}
+
+		results = append(results, post)
+	}
+
+	// Sort
+	sort.Slice(results, func(i, j int) bool {
+		return results[i].Created > results[j].Created
+	})
+
+	// Limit
+	if len(results) >= maxLength {
+		results = results[:maxLength]
+	}
+
+	return results
+}