yandex-music-api-go/internal/models/queue.go

// Package models provides data models for the Yandex Music API.
package models

import (
	"encoding/json"
)

// Queue represents a playback queue from the Yandex Music API.
type Queue struct {
	BaseModel
	ID JSONID `json:"id"`
	TrackIDs        []string     `json:"track_ids"`
	CurrentIndex    int          `json:"current_index"`
	QueueType       string       `json:"queue_type"`
	RepeatMode      string       `json:"repeat_mode"`
	Shuffle         bool         `json:"shuffle"`
	Device          string       `json:"device"`
	Items           []QueueItem  `json:"items"`
	Context         *PlayContext `json:"context"`
	AvailableTracks int          `json:"available_tracks"`
	TotalDuration   int          `json:"total_duration_ms"`
}

// DeJSON deserializes a Queue from JSON data.
func (q *Queue) DeJSON(data []byte, c ClientInterface) (Model, error) {
	var raw map[string]json.RawMessage
	if err := json.Unmarshal(data, &raw); err != nil {
		return nil, err
	}

	queue := &Queue{BaseModel: *NewBaseModel(c)}

	if v, ok := raw["id"]; ok {
		json.Unmarshal(v, &queue.ID)
	}
	if v, ok := raw["track_ids"]; ok {
		json.Unmarshal(v, &queue.TrackIDs)
	}
	if v, ok := raw["current_index"]; ok {
		json.Unmarshal(v, &queue.CurrentIndex)
	}
	if v, ok := raw["queue_type"]; ok {
		json.Unmarshal(v, &queue.QueueType)
	}
	if v, ok := raw["repeat_mode"]; ok {
		json.Unmarshal(v, &queue.RepeatMode)
	}
	if v, ok := raw["shuffle"]; ok {
		json.Unmarshal(v, &queue.Shuffle)
	}
	if v, ok := raw["device"]; ok {
		json.Unmarshal(v, &queue.Device)
	}
	if v, ok := raw["available_tracks"]; ok {
		json.Unmarshal(v, &queue.AvailableTracks)
	}
	if v, ok := raw["total_duration_ms"]; ok {
		json.Unmarshal(v, &queue.TotalDuration)
	}

	if v, ok := raw["items"]; ok {
		var items []QueueItem
		json.Unmarshal(v, &items)
		queue.Items = items
	}
	if v, ok := raw["context"]; ok {
		var ctx PlayContext
		json.Unmarshal(v, &ctx)
		queue.Context = &ctx
	}

	return queue, nil
}

// DeList deserializes a list of Queues from JSON data.
func (q *Queue) 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 {
		queue := &Queue{BaseModel: *NewBaseModel(c)}
		if err := json.Unmarshal(item, queue); err != nil {
			continue
		}
		result = append(result, queue)
	}
	return result, nil
}

// QueueItem represents a queue item.
type QueueItem struct {
	BaseModel
	TrackID     string       `json:"track_id"`
	Track       *Track       `json:"track"`
	Position    int          `json:"position"`
	AddedAt     string       `json:"added_at"`
	AddedBy     string       `json:"added_by"`
	Playable    bool         `json:"playable"`
	PlayContext *PlayContext `json:"play_context"`
}

// DeJSON deserializes a QueueItem from JSON data.
func (qi *QueueItem) DeJSON(data []byte, c ClientInterface) (Model, error) {
	var raw map[string]json.RawMessage
	if err := json.Unmarshal(data, &raw); err != nil {
		return nil, err
	}

	item := &QueueItem{BaseModel: *NewBaseModel(c)}

	if v, ok := raw["track_id"]; ok {
		json.Unmarshal(v, &item.TrackID)
	}
	if v, ok := raw["position"]; ok {
		json.Unmarshal(v, &item.Position)
	}
	if v, ok := raw["added_at"]; ok {
		json.Unmarshal(v, &item.AddedAt)
	}
	if v, ok := raw["added_by"]; ok {
		json.Unmarshal(v, &item.AddedBy)
	}
	if v, ok := raw["playable"]; ok {
		json.Unmarshal(v, &item.Playable)
	}

	if v, ok := raw["track"]; ok {
		var track Track
		json.Unmarshal(v, &track)
		item.Track = &track
	}
	if v, ok := raw["play_context"]; ok {
		var ctx PlayContext
		json.Unmarshal(v, &ctx)
		item.PlayContext = &ctx
	}

	return item, nil
}

// DeList deserializes a list of QueueItems from JSON data.
func (qi *QueueItem) 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 {
		qi := &QueueItem{BaseModel: *NewBaseModel(c)}
		if err := json.Unmarshal(item, qi); err != nil {
			continue
		}
		result = append(result, qi)
	}
	return result, nil
}

// PlayContext represents a play context.
type PlayContext struct {
	BaseModel
	ID JSONID `json:"id"`
	Type        string `json:"type"` // "playlist", "album", "artist", "radio", "search"
	SourceID    string `json:"source_id"`
	SourceKind  string `json:"source_kind"`
	Title       string `json:"title"`
	Description string `json:"description"`
	CoverURI    string `json:"cover_uri"`
	TrackCount  int    `json:"track_count"`
	Owner       *User  `json:"owner"`
	Available   bool   `json:"available"`
}

// DeJSON deserializes a PlayContext from JSON data.
func (pc *PlayContext) DeJSON(data []byte, c ClientInterface) (Model, error) {
	var raw map[string]json.RawMessage
	if err := json.Unmarshal(data, &raw); err != nil {
		return nil, err
	}

	ctx := &PlayContext{BaseModel: *NewBaseModel(c)}

	if v, ok := raw["id"]; ok {
		json.Unmarshal(v, &ctx.ID)
	}
	if v, ok := raw["type"]; ok {
		json.Unmarshal(v, &ctx.Type)
	}
	if v, ok := raw["source_id"]; ok {
		json.Unmarshal(v, &ctx.SourceID)
	}
	if v, ok := raw["source_kind"]; ok {
		json.Unmarshal(v, &ctx.SourceKind)
	}
	if v, ok := raw["title"]; ok {
		json.Unmarshal(v, &ctx.Title)
	}
	if v, ok := raw["description"]; ok {
		json.Unmarshal(v, &ctx.Description)
	}
	if v, ok := raw["cover_uri"]; ok {
		json.Unmarshal(v, &ctx.CoverURI)
	}
	if v, ok := raw["track_count"]; ok {
		json.Unmarshal(v, &ctx.TrackCount)
	}
	if v, ok := raw["available"]; ok {
		json.Unmarshal(v, &ctx.Available)
	}

	if v, ok := raw["owner"]; ok {
		var user User
		json.Unmarshal(v, &user)
		ctx.Owner = &user
	}

	return ctx, nil
}

// DeList deserializes a list of PlayContexts from JSON data.
func (pc *PlayContext) 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 {
		ctx := &PlayContext{BaseModel: *NewBaseModel(c)}
		if err := json.Unmarshal(item, ctx); err != nil {
			continue
		}
		result = append(result, ctx)
	}
	return result, nil
}

// PlayContextsData represents play contexts data.
type PlayContextsData struct {
	BaseModel
	Contexts []PlayContext `json:"contexts"`
	Total    int           `json:"total"`
	Page     int           `json:"page"`
	PageSize int           `json:"page_size"`
}

// DeJSON deserializes PlayContextsData from JSON data.
func (pcd *PlayContextsData) DeJSON(data []byte, c ClientInterface) (Model, error) {
	var raw map[string]json.RawMessage
	if err := json.Unmarshal(data, &raw); err != nil {
		return nil, err
	}

	result := &PlayContextsData{BaseModel: *NewBaseModel(c)}

	if v, ok := raw["contexts"]; ok {
		var contexts []PlayContext
		json.Unmarshal(v, &contexts)
		result.Contexts = contexts
	}
	if v, ok := raw["total"]; ok {
		json.Unmarshal(v, &result.Total)
	}
	if v, ok := raw["page"]; ok {
		json.Unmarshal(v, &result.Page)
	}
	if v, ok := raw["page_size"]; ok {
		json.Unmarshal(v, &result.PageSize)
	}

	return result, nil
}

// DeList deserializes a list of PlayContextsData from JSON data.
func (pcd *PlayContextsData) 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 {
		d := &PlayContextsData{BaseModel: *NewBaseModel(c)}
		if err := json.Unmarshal(item, d); err != nil {
			continue
		}
		result = append(result, d)
	}
	return result, nil
}