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package search
import (
"sort"
"strings"
"github.com/animenotifier/notify.moe/arn"
"github.com/animenotifier/notify.moe/arn/stringutils"
)
// Anime searches all anime.
func Anime(originalTerm string, maxLength int) []*arn.Anime {
term := strings.ToLower(stringutils.RemoveSpecialCharacters(originalTerm))
results := make([]*Result, 0, maxLength)
check := func(text string) float64 {
if text == "" {
return 0
}
return stringutils.AdvancedStringSimilarity(term, strings.ToLower(stringutils.RemoveSpecialCharacters(text)))
}
add := func(anime *arn.Anime, similarity float64) {
similarity += float64(anime.Popularity.Total()) * popularityDamping
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if anime.Type != "tv" && anime.Type != "movie" {
similarity -= 0.3
}
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results = append(results, &Result{
obj: anime,
similarity: similarity,
})
}
for anime := range arn.StreamAnime() {
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if anime.IsDraft {
continue
}
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if anime.ID == originalTerm {
return []*arn.Anime{anime}
}
// Canonical title
similarity := check(anime.Title.Canonical)
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if similarity >= MinStringSimilarity {
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add(anime, similarity)
continue
}
// English
similarity = check(anime.Title.English)
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if similarity >= MinStringSimilarity {
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add(anime, similarity)
continue
}
// Romaji
similarity = check(anime.Title.Romaji)
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if similarity >= MinStringSimilarity {
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add(anime, similarity)
continue
}
// Synonyms
for _, synonym := range anime.Title.Synonyms {
similarity := check(synonym)
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if similarity >= MinStringSimilarity {
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add(anime, similarity)
goto nextAnime
}
}
// Japanese
similarity = check(anime.Title.Japanese)
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if similarity >= MinStringSimilarity {
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add(anime, similarity)
continue
}
nextAnime:
}
// Sort
sort.Slice(results, func(i, j int) bool {
return results[i].similarity > results[j].similarity
})
// Limit
if len(results) >= maxLength {
results = results[:maxLength]
}
// Final list
final := make([]*arn.Anime, len(results))
for i, result := range results {
final[i] = result.obj.(*arn.Anime)
}
return final
}