Yonah
d4789d958b
This establishes relation between album and song. Signed-off-by: Yonah <contrib@gensokyo.uk>
57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
package monstersirenfetch
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import (
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"bytes"
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"encoding/json"
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)
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// SongResponse is the response of /api/song/%d.
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type SongResponse Response[Song]
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// Song holds the metadata of a song.
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// Fields marked with omitempty are only populated when the IsFull method returns true.
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type Song struct {
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CID StringInt `json:"cid"`
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Name string `json:"name"`
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AlbumCID StringInt `json:"albumCid"`
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SourceURL string `json:"sourceUrl,omitempty"`
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LyricURL string `json:"lyricUrl,omitempty"`
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MvURL string `json:"mvUrl,omitempty"`
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MvCoverURL string `json:"mvCoverUrl,omitempty"`
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Artists []string `json:"artists"`
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}
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// IsFull returns whether the metadata held by [Song] is considered full (originating from a [SongResponse]).
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func (s *Song) IsFull() bool { return s.SourceURL != "" }
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// songDirect is [Song] without its MarshalJSON method.
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type songDirect Song
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// songNullable is [Song] with corresponding nullable string fields.
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type songNullable struct {
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CID StringInt `json:"cid"`
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Name string `json:"name"`
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AlbumCID StringInt `json:"albumCid"`
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SourceURL string `json:"sourceUrl"`
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LyricURL NullableString `json:"lyricUrl"`
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MvURL NullableString `json:"mvUrl"`
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MvCoverURL NullableString `json:"mvCoverUrl"`
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Artists []string `json:"artists"`
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}
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func (s *Song) MarshalJSON() (data []byte, err error) {
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buf := new(bytes.Buffer)
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e := json.NewEncoder(buf)
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e.SetEscapeHTML(false)
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if !s.IsFull() {
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err = e.Encode((*songDirect)(s))
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data = buf.Bytes()
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return
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}
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return json.Marshal(&songNullable{s.CID, s.Name, s.AlbumCID, s.SourceURL,
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NullableString(s.LyricURL), NullableString(s.MvURL), NullableString(s.MvCoverURL),
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s.Artists})
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}
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