344 lines
8.7 KiB
Go
344 lines
8.7 KiB
Go
package postgres
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import (
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"context"
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"database/sql"
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"fmt"
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"strings"
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"time"
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"github.com/lib/pq"
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"github.com/kms/api-key-service/internal/domain"
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"github.com/kms/api-key-service/internal/repository"
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)
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// ApplicationRepository implements the ApplicationRepository interface for PostgreSQL
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type ApplicationRepository struct {
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db repository.DatabaseProvider
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}
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// NewApplicationRepository creates a new PostgreSQL application repository
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func NewApplicationRepository(db repository.DatabaseProvider) repository.ApplicationRepository {
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return &ApplicationRepository{db: db}
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}
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// Create creates a new application
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func (r *ApplicationRepository) Create(ctx context.Context, app *domain.Application) error {
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query := `
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INSERT INTO applications (
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app_id, app_link, type, callback_url, hmac_key,
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token_renewal_duration, max_token_duration,
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owner_type, owner_name, owner_owner,
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created_at, updated_at
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) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
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`
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db := r.db.GetDB().(*sql.DB)
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now := time.Now()
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// Convert application types to string array
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typeStrings := make([]string, len(app.Type))
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for i, t := range app.Type {
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typeStrings[i] = string(t)
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}
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_, err := db.ExecContext(ctx, query,
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app.AppID,
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app.AppLink,
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pq.Array(typeStrings),
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app.CallbackURL,
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app.HMACKey,
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app.TokenRenewalDuration.Nanoseconds(),
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app.MaxTokenDuration.Nanoseconds(),
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string(app.Owner.Type),
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app.Owner.Name,
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app.Owner.Owner,
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now,
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now,
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)
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if err != nil {
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if isUniqueViolation(err) {
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return fmt.Errorf("application with ID '%s' already exists", app.AppID)
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}
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return fmt.Errorf("failed to create application: %w", err)
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}
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app.CreatedAt = now
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app.UpdatedAt = now
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return nil
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}
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// GetByID retrieves an application by its ID
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func (r *ApplicationRepository) GetByID(ctx context.Context, appID string) (*domain.Application, error) {
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query := `
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SELECT app_id, app_link, type, callback_url, hmac_key,
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token_renewal_duration, max_token_duration,
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owner_type, owner_name, owner_owner,
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created_at, updated_at
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FROM applications
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WHERE app_id = $1
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`
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db := r.db.GetDB().(*sql.DB)
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row := db.QueryRowContext(ctx, query, appID)
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app := &domain.Application{}
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var typeStrings pq.StringArray
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var tokenRenewalNanos, maxTokenNanos int64
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var ownerType string
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err := row.Scan(
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&app.AppID,
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&app.AppLink,
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&typeStrings,
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&app.CallbackURL,
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&app.HMACKey,
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&tokenRenewalNanos,
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&maxTokenNanos,
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&ownerType,
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&app.Owner.Name,
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&app.Owner.Owner,
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&app.CreatedAt,
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&app.UpdatedAt,
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)
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if err != nil {
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if err == sql.ErrNoRows {
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return nil, fmt.Errorf("application with ID '%s' not found", appID)
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}
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return nil, fmt.Errorf("failed to get application: %w", err)
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}
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// Convert string array to application types
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app.Type = make([]domain.ApplicationType, len(typeStrings))
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for i, t := range typeStrings {
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app.Type[i] = domain.ApplicationType(t)
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}
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// Convert nanoseconds to duration
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app.TokenRenewalDuration = time.Duration(tokenRenewalNanos)
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app.MaxTokenDuration = time.Duration(maxTokenNanos)
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// Convert owner type
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app.Owner.Type = domain.OwnerType(ownerType)
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return app, nil
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}
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// List retrieves applications with pagination
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func (r *ApplicationRepository) List(ctx context.Context, limit, offset int) ([]*domain.Application, error) {
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query := `
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SELECT app_id, app_link, type, callback_url, hmac_key,
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token_renewal_duration, max_token_duration,
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owner_type, owner_name, owner_owner,
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created_at, updated_at
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FROM applications
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ORDER BY created_at DESC
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LIMIT $1 OFFSET $2
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`
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db := r.db.GetDB().(*sql.DB)
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rows, err := db.QueryContext(ctx, query, limit, offset)
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if err != nil {
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return nil, fmt.Errorf("failed to list applications: %w", err)
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}
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defer rows.Close()
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var applications []*domain.Application
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for rows.Next() {
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app := &domain.Application{}
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var typeStrings pq.StringArray
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var tokenRenewalNanos, maxTokenNanos int64
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var ownerType string
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err := rows.Scan(
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&app.AppID,
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&app.AppLink,
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&typeStrings,
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&app.CallbackURL,
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&app.HMACKey,
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&tokenRenewalNanos,
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&maxTokenNanos,
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&ownerType,
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&app.Owner.Name,
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&app.Owner.Owner,
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&app.CreatedAt,
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&app.UpdatedAt,
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)
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if err != nil {
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return nil, fmt.Errorf("failed to scan application: %w", err)
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}
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// Convert string array to application types
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app.Type = make([]domain.ApplicationType, len(typeStrings))
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for i, t := range typeStrings {
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app.Type[i] = domain.ApplicationType(t)
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}
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// Convert nanoseconds to duration
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app.TokenRenewalDuration = time.Duration(tokenRenewalNanos)
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app.MaxTokenDuration = time.Duration(maxTokenNanos)
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// Convert owner type
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app.Owner.Type = domain.OwnerType(ownerType)
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applications = append(applications, app)
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}
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if err := rows.Err(); err != nil {
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return nil, fmt.Errorf("failed to iterate applications: %w", err)
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}
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return applications, nil
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}
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// Update updates an existing application
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func (r *ApplicationRepository) Update(ctx context.Context, appID string, updates *domain.UpdateApplicationRequest) (*domain.Application, error) {
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// Build dynamic update query
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var setParts []string
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var args []interface{}
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argIndex := 1
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if updates.AppLink != nil {
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setParts = append(setParts, fmt.Sprintf("app_link = $%d", argIndex))
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args = append(args, *updates.AppLink)
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argIndex++
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}
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if updates.Type != nil {
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typeStrings := make([]string, len(*updates.Type))
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for i, t := range *updates.Type {
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typeStrings[i] = string(t)
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}
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setParts = append(setParts, fmt.Sprintf("type = $%d", argIndex))
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args = append(args, pq.Array(typeStrings))
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argIndex++
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}
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if updates.CallbackURL != nil {
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setParts = append(setParts, fmt.Sprintf("callback_url = $%d", argIndex))
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args = append(args, *updates.CallbackURL)
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argIndex++
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}
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if updates.HMACKey != nil {
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setParts = append(setParts, fmt.Sprintf("hmac_key = $%d", argIndex))
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args = append(args, *updates.HMACKey)
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argIndex++
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}
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if updates.TokenRenewalDuration != nil {
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setParts = append(setParts, fmt.Sprintf("token_renewal_duration = $%d", argIndex))
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args = append(args, updates.TokenRenewalDuration.Nanoseconds())
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argIndex++
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}
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if updates.MaxTokenDuration != nil {
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setParts = append(setParts, fmt.Sprintf("max_token_duration = $%d", argIndex))
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args = append(args, updates.MaxTokenDuration.Nanoseconds())
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argIndex++
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}
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if updates.Owner != nil {
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setParts = append(setParts, fmt.Sprintf("owner_type = $%d", argIndex))
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args = append(args, string(updates.Owner.Type))
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argIndex++
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setParts = append(setParts, fmt.Sprintf("owner_name = $%d", argIndex))
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args = append(args, updates.Owner.Name)
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argIndex++
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setParts = append(setParts, fmt.Sprintf("owner_owner = $%d", argIndex))
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args = append(args, updates.Owner.Owner)
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argIndex++
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}
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if len(setParts) == 0 {
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return r.GetByID(ctx, appID) // No updates, return current state
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}
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// Always update the updated_at field
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setParts = append(setParts, fmt.Sprintf("updated_at = $%d", argIndex))
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args = append(args, time.Now())
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argIndex++
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// Add WHERE clause
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args = append(args, appID)
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query := fmt.Sprintf(`
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UPDATE applications
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SET %s
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WHERE app_id = $%d
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`, strings.Join(setParts, ", "), argIndex)
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db := r.db.GetDB().(*sql.DB)
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result, err := db.ExecContext(ctx, query, args...)
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if err != nil {
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return nil, fmt.Errorf("failed to update application: %w", err)
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}
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rowsAffected, err := result.RowsAffected()
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if err != nil {
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return nil, fmt.Errorf("failed to get rows affected: %w", err)
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}
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if rowsAffected == 0 {
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return nil, fmt.Errorf("application with ID '%s' not found", appID)
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}
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// Return updated application
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return r.GetByID(ctx, appID)
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}
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// Delete deletes an application
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func (r *ApplicationRepository) Delete(ctx context.Context, appID string) error {
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query := `DELETE FROM applications WHERE app_id = $1`
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db := r.db.GetDB().(*sql.DB)
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result, err := db.ExecContext(ctx, query, appID)
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if err != nil {
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return fmt.Errorf("failed to delete application: %w", err)
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}
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rowsAffected, err := result.RowsAffected()
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if err != nil {
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return fmt.Errorf("failed to get rows affected: %w", err)
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}
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if rowsAffected == 0 {
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return fmt.Errorf("application with ID '%s' not found", appID)
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}
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return nil
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}
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// Exists checks if an application exists
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func (r *ApplicationRepository) Exists(ctx context.Context, appID string) (bool, error) {
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query := `SELECT 1 FROM applications WHERE app_id = $1`
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db := r.db.GetDB().(*sql.DB)
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var exists int
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err := db.QueryRowContext(ctx, query, appID).Scan(&exists)
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if err != nil {
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if err == sql.ErrNoRows {
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return false, nil
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}
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return false, fmt.Errorf("failed to check application existence: %w", err)
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}
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return true, nil
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}
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// isUniqueViolation checks if the error is a unique constraint violation
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func isUniqueViolation(err error) bool {
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if pqErr, ok := err.(*pq.Error); ok {
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return pqErr.Code == "23505" // unique_violation
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}
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return false
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}
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