Added delete-unused-characters patch

patches/delete-unused-characters/delete-unused-characters.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/animenotifier/arn"
+	"github.com/fatih/color"
+)
+
+func main() {
+	color.Yellow("Deleting unused characters")
+
+	defer color.Green("Finished")
+	defer arn.Node.Close()
+
+	used := map[string]bool{}
+
+	// Check quotes
+	for quote := range arn.StreamQuotes() {
+		used[quote.CharacterID] = true
+	}
+
+	// Check log
+	for entry := range arn.StreamEditLogEntries() {
+		if entry.ObjectType != "Character" {
+			continue
+		}
+
+		used[entry.ObjectID] = true
+	}
+
+	// Check anime characters
+	for list := range arn.StreamAnimeCharacters() {
+		for _, animeCharacter := range list.Items {
+			used[animeCharacter.CharacterID] = true
+		}
+	}
+
+	characters := []*arn.Character{}
+
+	// Delete unused characters
+	for character := range arn.StreamCharacters() {
+		if used[character.ID] {
+			characters = append(characters, character)
+		} else {
+			fmt.Println("Deleting", character.ID, character)
+		}
+	}
+
+	arn.DB.Clear("Character")
+
+	for _, character := range characters {
+		character.Save()
+	}
+
+	fmt.Println(len(used), len(characters))
+	time.Sleep(2 * time.Second)
+}