Fix Artist model to match Python reference

- Link field removed (not in Python Artist model)
- Description: string → *Description object (text, uri fields)
- SocialLinks []SocialLink → Links []Link (title, href, type, social_network)
- Donations *ArtistDonations → DonationInfo *ArtistDonationInfo (title, url)
- Decomposed []Artist → []Decomposed (accepts string or Artist object)
- Added Decomposed, Link, Description, ArtistDonationInfo types

internal/models/artist.go

@@ -14,25 +14,24 @@ type Artist struct {
 	Genres      []string     `json:"genres"`
 	Tracks      int          `json:"tracks"`
 	Albums      int          `json:"albums"`
-	Link        string       `json:"link"`
 	Available   bool         `json:"available"`
-	Description string       `json:"description"`
 	Composer    bool         `json:"composer"`
 	Various     bool         `json:"various"`
-	Decomposed  []Artist     `json:"decomposed"`
+	Decomposed  []Decomposed `json:"decomposed"`
 	Ratings     *Ratings     `json:"ratings"`
 	Counts      *Counts      `json:"counts"`
-	SocialLinks []SocialLink `json:"social_links"`
+	Links       []Link       `json:"social_links"`
+	Description *Description `json:"description"`
 	// Additional fields
-	IDForFrom  string           `json:"id_for_from"`
+	IDForFrom  string             `json:"id_for_from"`
-	Cover      *Cover           `json:"cover"`
+	Cover      *Cover             `json:"cover"`
-	BriefInfo  *ArtistBriefInfo `json:"brief_info"`
+	BriefInfo  *ArtistBriefInfo   `json:"brief_info"`
-	Donations  *ArtistDonations `json:"donations"`
+	DonationInfo *ArtistDonationInfo `json:"donation_info"`
-	Concerts   []Concert        `json:"concerts"`
+	Concerts   []Concert          `json:"concerts"`
-	Clips      []Clip           `json:"clips"`
+	Clips      []Clip             `json:"clips"`
-	Similar    []Artist         `json:"similar"`
+	Similar    []Artist           `json:"similar"`
-	AlbumsData []Album          `json:"albums_data"`
+	AlbumsData []Album            `json:"albums_data"`
-	TracksData []Track          `json:"tracks_data"`
+	TracksData []Track            `json:"tracks_data"`
 }
 
 // DeJSON deserializes an Artist from JSON data.
@@ -63,15 +62,9 @@ func (a *Artist) DeJSON(data []byte, c ClientInterface) (Model, error) {
 	if v, ok := raw["albums"]; ok {
 		json.Unmarshal(v, &artist.Albums)
 	}
-	if v, ok := raw["link"]; ok {
-		json.Unmarshal(v, &artist.Link)
-	}
 	if v, ok := raw["available"]; ok {
 		json.Unmarshal(v, &artist.Available)
 	}
-	if v, ok := raw["description"]; ok {
-		json.Unmarshal(v, &artist.Description)
-	}
 	if v, ok := raw["composer"]; ok {
 		json.Unmarshal(v, &artist.Composer)
 	}
@@ -84,9 +77,10 @@ func (a *Artist) DeJSON(data []byte, c ClientInterface) (Model, error) {
 
 	// Nested objects
 	if v, ok := raw["decomposed"]; ok {
-		var decomposed []Artist
+		var decomposed []Decomposed
-		json.Unmarshal(v, &decomposed)
+		if err := json.Unmarshal(v, &decomposed); err == nil {
-		artist.Decomposed = decomposed
+			artist.Decomposed = decomposed
+		}
 	}
 	if v, ok := raw["ratings"]; ok {
 		var ratings Ratings
@@ -99,9 +93,10 @@ func (a *Artist) DeJSON(data []byte, c ClientInterface) (Model, error) {
 		artist.Counts = &counts
 	}
 	if v, ok := raw["social_links"]; ok {
-		var links []SocialLink
+		var links []Link
-		json.Unmarshal(v, &links)
+		if err := json.Unmarshal(v, &links); err == nil {
-		artist.SocialLinks = links
+			artist.Links = links
+		}
 	}
 	if v, ok := raw["cover"]; ok {
 		var cover Cover
@@ -113,10 +108,10 @@ func (a *Artist) DeJSON(data []byte, c ClientInterface) (Model, error) {
 		json.Unmarshal(v, &brief)
 		artist.BriefInfo = &brief
 	}
-	if v, ok := raw["donations"]; ok {
+	if v, ok := raw["donation_info"]; ok {
-		var donations ArtistDonations
+		var donation ArtistDonationInfo
-		json.Unmarshal(v, &donations)
+		json.Unmarshal(v, &donation)
-		artist.Donations = &donations
+		artist.DonationInfo = &donation
 	}
 	if v, ok := raw["concerts"]; ok {
 		var concerts []Concert
@@ -210,7 +205,7 @@ type ArtistDonations struct {
 
 // DonationItem represents a donation item.
 type DonationItem struct {
-	ID JSONID `json:"id"`
+	ID          JSONID `json:"id"`
 	Title       string `json:"title"`
 	Description string `json:"description"`
 	Amount      int    `json:"amount"`
@@ -219,6 +214,178 @@ type DonationItem struct {
 	Currency    string `json:"currency"`
 }
 
+// Decomposed represents a decomposed artist that can be either a string or an Artist object.
+type Decomposed struct {
+	Artist *Artist `json:"-"`
+	Str    string  `json:"-"`
+	IsStr  bool    `json:"-"`
+}
+
+// UnmarshalJSON implements json.Unmarshaler, accepting both string and Artist object.
+func (d *Decomposed) UnmarshalJSON(data []byte) error {
+	var s string
+	if err := json.Unmarshal(data, &s); err == nil {
+		d.Str = s
+		d.IsStr = true
+		return nil
+	}
+	var artist Artist
+	if err := json.Unmarshal(data, &artist); err != nil {
+		return err
+	}
+	d.Artist = &artist
+	d.IsStr = false
+	return nil
+}
+
+// MarshalJSON implements json.Marshaler.
+func (d Decomposed) MarshalJSON() ([]byte, error) {
+	if d.IsStr {
+		return json.Marshal(d.Str)
+	}
+	return json.Marshal(d.Artist)
+}
+
+// Link represents a link to an artist's official page or social network.
+type Link struct {
+	BaseModel
+	Title         string `json:"title"`
+	Href          string `json:"href"`
+	Type          string `json:"type"`
+	SocialNetwork string `json:"social_network"`
+}
+
+// DeJSON deserializes Link from JSON data.
+func (l *Link) DeJSON(data []byte, c ClientInterface) (Model, error) {
+	var raw map[string]json.RawMessage
+	if err := json.Unmarshal(data, &raw); err != nil {
+		return nil, err
+	}
+
+	link := &Link{BaseModel: *NewBaseModel(c)}
+
+	if v, ok := raw["title"]; ok {
+		json.Unmarshal(v, &link.Title)
+	}
+	if v, ok := raw["href"]; ok {
+		json.Unmarshal(v, &link.Href)
+	}
+	if v, ok := raw["type"]; ok {
+		json.Unmarshal(v, &link.Type)
+	}
+	if v, ok := raw["social_network"]; ok {
+		json.Unmarshal(v, &link.SocialNetwork)
+	}
+
+	return link, nil
+}
+
+// DeList deserializes a list of Links from JSON data.
+func (l *Link) DeList(data []byte, c ClientInterface) ([]Model, error) {
+	var rawList []json.RawMessage
+	if err := json.Unmarshal(data, &rawList); err != nil {
+		return nil, err
+	}
+
+	result := make([]Model, 0, len(rawList))
+	for _, item := range rawList {
+		link := &Link{BaseModel: *NewBaseModel(c)}
+		if err := json.Unmarshal(item, link); err != nil {
+			continue
+		}
+		result = append(result, link)
+	}
+	return result, nil
+}
+
+// Description represents artist description.
+type Description struct {
+	BaseModel
+	Text string `json:"text"`
+	URI  string `json:"uri"`
+}
+
+// DeJSON deserializes Description from JSON data.
+func (d *Description) DeJSON(data []byte, c ClientInterface) (Model, error) {
+	var raw map[string]json.RawMessage
+	if err := json.Unmarshal(data, &raw); err != nil {
+		return nil, err
+	}
+
+	desc := &Description{BaseModel: *NewBaseModel(c)}
+
+	if v, ok := raw["text"]; ok {
+		json.Unmarshal(v, &desc.Text)
+	}
+	if v, ok := raw["uri"]; ok {
+		json.Unmarshal(v, &desc.URI)
+	}
+
+	return desc, nil
+}
+
+// DeList deserializes a list of Descriptions from JSON data.
+func (d *Description) DeList(data []byte, c ClientInterface) ([]Model, error) {
+	var rawList []json.RawMessage
+	if err := json.Unmarshal(data, &rawList); err != nil {
+		return nil, err
+	}
+
+	result := make([]Model, 0, len(rawList))
+	for _, item := range rawList {
+		desc := &Description{BaseModel: *NewBaseModel(c)}
+		if err := json.Unmarshal(item, desc); err != nil {
+			continue
+		}
+		result = append(result, desc)
+	}
+	return result, nil
+}
+
+// ArtistDonationInfo represents artist donation info.
+type ArtistDonationInfo struct {
+	BaseModel
+	Title string `json:"title"`
+	URL   string `json:"url"`
+}
+
+// DeJSON deserializes ArtistDonationInfo from JSON data.
+func (adi *ArtistDonationInfo) DeJSON(data []byte, c ClientInterface) (Model, error) {
+	var raw map[string]json.RawMessage
+	if err := json.Unmarshal(data, &raw); err != nil {
+		return nil, err
+	}
+
+	info := &ArtistDonationInfo{BaseModel: *NewBaseModel(c)}
+
+	if v, ok := raw["title"]; ok {
+		json.Unmarshal(v, &info.Title)
+	}
+	if v, ok := raw["url"]; ok {
+		json.Unmarshal(v, &info.URL)
+	}
+
+	return info, nil
+}
+
+// DeList deserializes a list of ArtistDonationInfo from JSON data.
+func (adi *ArtistDonationInfo) DeList(data []byte, c ClientInterface) ([]Model, error) {
+	var rawList []json.RawMessage
+	if err := json.Unmarshal(data, &rawList); err != nil {
+		return nil, err
+	}
+
+	result := make([]Model, 0, len(rawList))
+	for _, item := range rawList {
+		info := &ArtistDonationInfo{BaseModel: *NewBaseModel(c)}
+		if err := json.Unmarshal(item, info); err != nil {
+			continue
+		}
+		result = append(result, info)
+	}
+	return result, nil
+}
+
 // ConcertShort represents a concert (minimal for artist).
 type ConcertShort struct {
 	BaseModel