Episodes now have their own ID

arn/EpisodeList.go

@@ -0,0 +1,68 @@
+package arn
+
+import (
+	"sort"
+	"strconv"
+	"strings"
+)
+
+// EpisodeList is a list of episodes.
+type EpisodeList []*Episode
+
+// Sort sorts the episodes by episode number.
+func (episodes EpisodeList) Sort() {
+	sort.Slice(episodes, func(i, j int) bool {
+		return episodes[i].Number < episodes[j].Number
+	})
+}
+
+// Find finds the given episode number.
+func (episodes EpisodeList) Find(episodeNumber int) (*Episode, int) {
+	for index, episode := range episodes {
+		if episode.Number == episodeNumber {
+			return episode, index
+		}
+	}
+
+	return nil, -1
+}
+
+// Merge combines the data of both episode lists to one.
+func (episodes EpisodeList) Merge(b EpisodeList) {
+	for index, episode := range b {
+		if index >= len(episodes) {
+			episodes = append(episodes, episode)
+		} else {
+			episodes[index].Merge(episode)
+		}
+	}
+}
+
+// HumanReadable returns a text representation of the anime episodes.
+func (episodes EpisodeList) HumanReadable() string {
+	b := strings.Builder{}
+
+	for _, episode := range episodes {
+		b.WriteString(strconv.Itoa(episode.Number))
+		b.WriteString(" | ")
+		b.WriteString(episode.Title.Japanese)
+		b.WriteString(" | ")
+		b.WriteString(episode.AiringDate.StartDateHuman())
+		b.WriteByte('\n')
+	}
+
+	return strings.TrimRight(b.String(), "\n")
+}
+
+// AvailableCount counts the number of available episodes.
+func (episodes EpisodeList) AvailableCount() int {
+	available := 0
+
+	for _, episode := range episodes {
+		if episode.Available() {
+			available++
+		}
+	}
+
+	return available
+}