2025-12-03 19:29:37 +00:00
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package repositories
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import (
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"context"
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"github.com/google/uuid"
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"veza-backend-api/internal/models"
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"gorm.io/gorm"
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)
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// PlaylistRepository définit l'interface pour les opérations sur les playlists
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type PlaylistRepository interface {
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// Create crée une nouvelle playlist
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Create(ctx context.Context, playlist *models.Playlist) error
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// GetByID récupère une playlist par son ID
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GetByID(ctx context.Context, id uuid.UUID) (*models.Playlist, error)
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// GetByUserID récupère les playlists d'un utilisateur
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GetByUserID(ctx context.Context, userID uuid.UUID, limit, offset int) ([]*models.Playlist, int64, error)
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// Update met à jour une playlist
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Update(ctx context.Context, playlist *models.Playlist) error
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// Delete supprime une playlist
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Delete(ctx context.Context, id uuid.UUID) error
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// List récupère une liste de playlists avec pagination
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List(ctx context.Context, filterUserID *uuid.UUID, isPublic *bool, limit, offset int) ([]*models.Playlist, int64, error)
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// Exists vérifie si une playlist existe
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Exists(ctx context.Context, id uuid.UUID) (bool, error)
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// GetByIDWithTracks récupère une playlist avec ses tracks
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// T0501: Create Playlist Performance Optimization
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GetByIDWithTracks(ctx context.Context, id uuid.UUID) (*models.Playlist, error)
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// Search recherche des playlists selon des critères
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// T0496: Create Playlist Search Backend
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Search(ctx context.Context, query string, filterUserID *uuid.UUID, isPublic *bool, limit, offset int) ([]*models.Playlist, int64, error)
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}
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// playlistRepository implémente PlaylistRepository avec GORM
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type playlistRepository struct {
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db *gorm.DB
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}
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// NewPlaylistRepository crée une nouvelle instance de PlaylistRepository
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func NewPlaylistRepository(db *gorm.DB) PlaylistRepository {
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return &playlistRepository{
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db: db,
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}
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}
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// Create crée une nouvelle playlist
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func (r *playlistRepository) Create(ctx context.Context, playlist *models.Playlist) error {
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return r.db.WithContext(ctx).Create(playlist).Error
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}
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// GetByID récupère une playlist par son ID
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// T0501: Optimisé avec lazy loading des tracks
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func (r *playlistRepository) GetByID(ctx context.Context, id uuid.UUID) (*models.Playlist, error) {
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var playlist models.Playlist
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// T0501: Ne pas charger les tracks par défaut (lazy loading)
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// Les tracks seront chargés à la demande via GetTracks si nécessaire
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if err := r.db.WithContext(ctx).
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Preload("User").
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First(&playlist, "id = ?", id).Error; err != nil {
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return nil, err
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}
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return &playlist, nil
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}
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// GetByIDWithTracks récupère une playlist avec ses tracks (pour les cas où on en a besoin)
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// T0501: Méthode séparée pour charger les tracks à la demande
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func (r *playlistRepository) GetByIDWithTracks(ctx context.Context, id uuid.UUID) (*models.Playlist, error) {
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var playlist models.Playlist
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if err := r.db.WithContext(ctx).
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Preload("User").
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Preload("Tracks").
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Preload("Tracks.Track").
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First(&playlist, "id = ?", id).Error; err != nil {
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return nil, err
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}
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return &playlist, nil
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}
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// GetByUserID récupère les playlists d'un utilisateur
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// MIGRATION UUID: userID migré vers uuid.UUID
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func (r *playlistRepository) GetByUserID(ctx context.Context, userID uuid.UUID, limit, offset int) ([]*models.Playlist, int64, error) {
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var playlists []*models.Playlist
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var total int64
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query := r.db.WithContext(ctx).Model(&models.Playlist{}).Where("user_id = ?", userID)
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if err := query.Count(&total).Error; err != nil {
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return nil, 0, err
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}
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if err := query.Preload("User").
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Order("created_at DESC").
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Offset(offset).
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Limit(limit).
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Find(&playlists).Error; err != nil {
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return nil, 0, err
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}
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return playlists, total, nil
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}
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// Update met à jour une playlist
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func (r *playlistRepository) Update(ctx context.Context, playlist *models.Playlist) error {
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return r.db.WithContext(ctx).Save(playlist).Error
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}
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// Delete supprime une playlist
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func (r *playlistRepository) Delete(ctx context.Context, id uuid.UUID) error {
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return r.db.WithContext(ctx).Delete(&models.Playlist{}, "id = ?", id).Error
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}
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// List récupère une liste de playlists avec pagination
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// MIGRATION UUID: filterUserID migré vers *uuid.UUID
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func (r *playlistRepository) List(ctx context.Context, filterUserID *uuid.UUID, isPublic *bool, limit, offset int) ([]*models.Playlist, int64, error) {
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var playlists []*models.Playlist
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var total int64
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query := r.db.WithContext(ctx).Model(&models.Playlist{})
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if filterUserID != nil {
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query = query.Where("user_id = ?", *filterUserID)
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}
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if isPublic != nil {
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query = query.Where("is_public = ?", *isPublic)
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}
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if err := query.Count(&total).Error; err != nil {
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return nil, 0, err
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}
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if err := query.Preload("User").
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Order("created_at DESC").
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Offset(offset).
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Limit(limit).
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Find(&playlists).Error; err != nil {
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return nil, 0, err
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}
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return playlists, total, nil
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}
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// Exists vérifie si une playlist existe
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func (r *playlistRepository) Exists(ctx context.Context, id uuid.UUID) (bool, error) {
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var count int64
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err := r.db.WithContext(ctx).Model(&models.Playlist{}).Where("id = ?", id).Count(&count).Error
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return count > 0, err
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}
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// Search recherche des playlists selon des critères
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// T0496: Create Playlist Search Backend
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// MIGRATION UUID: filterUserID migré vers *uuid.UUID
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func (r *playlistRepository) Search(ctx context.Context, query string, filterUserID *uuid.UUID, isPublic *bool, limit, offset int) ([]*models.Playlist, int64, error) {
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var playlists []*models.Playlist
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var total int64
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dbQuery := r.db.WithContext(ctx).Model(&models.Playlist{})
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// Recherche par titre ou description
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if query != "" {
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searchPattern := "%" + query + "%"
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dbQuery = dbQuery.Where("(title LIKE ? OR description LIKE ?)", searchPattern, searchPattern)
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}
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// Filtrer par utilisateur
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if filterUserID != nil {
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dbQuery = dbQuery.Where("user_id = ?", *filterUserID)
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}
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// Filtrer par statut public/privé
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if isPublic != nil {
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dbQuery = dbQuery.Where("is_public = ?", *isPublic)
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}
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// Compter le total
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if err := dbQuery.Count(&total).Error; err != nil {
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return nil, 0, err
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}
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// Récupérer les playlists avec pagination
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if err := dbQuery.
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Preload("User").
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Order("created_at DESC").
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Offset(offset).
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Limit(limit).
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Find(&playlists).Error; err != nil {
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return nil, 0, err
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}
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return playlists, total, nil
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2025-12-06 16:21:59 +00:00
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}
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