Initial commit: MyCrib API in Go
Complete rewrite of Django REST API to Go with: - Gin web framework for HTTP routing - GORM for database operations - GoAdmin for admin panel - Gorush integration for push notifications - Redis for caching and job queues Features implemented: - User authentication (login, register, logout, password reset) - Residence management (CRUD, sharing, share codes) - Task management (CRUD, kanban board, completions) - Contractor management (CRUD, specialties) - Document management (CRUD, warranties) - Notifications (preferences, push notifications) - Subscription management (tiers, limits) Infrastructure: - Docker Compose for local development - Database migrations and seed data - Admin panel for data management 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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internal/config/config.go
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internal/config/config.go
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package config
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import (
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"fmt"
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"os"
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"strings"
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"time"
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"github.com/spf13/viper"
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)
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// Config holds all configuration for the application
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type Config struct {
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Server ServerConfig
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Database DatabaseConfig
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Redis RedisConfig
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Email EmailConfig
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Push PushConfig
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Worker WorkerConfig
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Security SecurityConfig
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}
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type ServerConfig struct {
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Port int
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Debug bool
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AllowedHosts []string
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Timezone string
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}
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type DatabaseConfig struct {
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Host string
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Port int
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User string
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Password string
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Database string
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SSLMode string
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MaxOpenConns int
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MaxIdleConns int
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MaxLifetime time.Duration
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}
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type RedisConfig struct {
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URL string
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Password string
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DB int
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}
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type EmailConfig struct {
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Host string
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Port int
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User string
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Password string
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From string
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UseTLS bool
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}
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type PushConfig struct {
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// Gorush server URL
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GorushURL string
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// APNs (iOS)
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APNSKeyPath string
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APNSKeyID string
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APNSTeamID string
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APNSTopic string
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APNSSandbox bool
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// FCM (Android)
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FCMServerKey string
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}
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type WorkerConfig struct {
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// Scheduled job times (UTC)
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TaskReminderHour int
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TaskReminderMinute int
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OverdueReminderHour int
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DailyNotifHour int
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}
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type SecurityConfig struct {
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SecretKey string
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TokenCacheTTL time.Duration
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PasswordResetExpiry time.Duration
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ConfirmationExpiry time.Duration
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MaxPasswordResetRate int // per hour
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}
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var cfg *Config
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// Load reads configuration from environment variables
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func Load() (*Config, error) {
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viper.SetEnvPrefix("")
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viper.AutomaticEnv()
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viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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// Set defaults
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setDefaults()
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cfg = &Config{
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Server: ServerConfig{
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Port: viper.GetInt("PORT"),
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Debug: viper.GetBool("DEBUG"),
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AllowedHosts: strings.Split(viper.GetString("ALLOWED_HOSTS"), ","),
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Timezone: viper.GetString("TIMEZONE"),
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},
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Database: DatabaseConfig{
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Host: viper.GetString("DB_HOST"),
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Port: viper.GetInt("DB_PORT"),
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User: viper.GetString("POSTGRES_USER"),
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Password: viper.GetString("POSTGRES_PASSWORD"),
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Database: viper.GetString("POSTGRES_DB"),
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SSLMode: viper.GetString("DB_SSLMODE"),
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MaxOpenConns: viper.GetInt("DB_MAX_OPEN_CONNS"),
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MaxIdleConns: viper.GetInt("DB_MAX_IDLE_CONNS"),
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MaxLifetime: viper.GetDuration("DB_MAX_LIFETIME"),
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},
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Redis: RedisConfig{
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URL: viper.GetString("REDIS_URL"),
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Password: viper.GetString("REDIS_PASSWORD"),
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DB: viper.GetInt("REDIS_DB"),
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},
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Email: EmailConfig{
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Host: viper.GetString("EMAIL_HOST"),
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Port: viper.GetInt("EMAIL_PORT"),
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User: viper.GetString("EMAIL_HOST_USER"),
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Password: viper.GetString("EMAIL_HOST_PASSWORD"),
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From: viper.GetString("DEFAULT_FROM_EMAIL"),
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UseTLS: viper.GetBool("EMAIL_USE_TLS"),
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},
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Push: PushConfig{
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GorushURL: viper.GetString("GORUSH_URL"),
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APNSKeyPath: viper.GetString("APNS_AUTH_KEY_PATH"),
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APNSKeyID: viper.GetString("APNS_AUTH_KEY_ID"),
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APNSTeamID: viper.GetString("APNS_TEAM_ID"),
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APNSTopic: viper.GetString("APNS_TOPIC"),
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APNSSandbox: viper.GetBool("APNS_USE_SANDBOX"),
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FCMServerKey: viper.GetString("FCM_SERVER_KEY"),
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},
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Worker: WorkerConfig{
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TaskReminderHour: viper.GetInt("CELERY_BEAT_REMINDER_HOUR"),
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TaskReminderMinute: viper.GetInt("CELERY_BEAT_REMINDER_MINUTE"),
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OverdueReminderHour: 9, // 9:00 AM UTC
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DailyNotifHour: 11, // 11:00 AM UTC
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},
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Security: SecurityConfig{
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SecretKey: viper.GetString("SECRET_KEY"),
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TokenCacheTTL: 5 * time.Minute,
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PasswordResetExpiry: 15 * time.Minute,
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ConfirmationExpiry: 24 * time.Hour,
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MaxPasswordResetRate: 3,
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},
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}
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// Validate required fields
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if err := validate(cfg); err != nil {
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return nil, err
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}
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return cfg, nil
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}
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// Get returns the current configuration
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func Get() *Config {
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return cfg
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}
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func setDefaults() {
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// Server defaults
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viper.SetDefault("PORT", 8000)
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viper.SetDefault("DEBUG", false)
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viper.SetDefault("ALLOWED_HOSTS", "localhost,127.0.0.1")
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viper.SetDefault("TIMEZONE", "UTC")
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// Database defaults
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viper.SetDefault("DB_HOST", "localhost")
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viper.SetDefault("DB_PORT", 5432)
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viper.SetDefault("POSTGRES_USER", "postgres")
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viper.SetDefault("POSTGRES_DB", "mycrib")
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viper.SetDefault("DB_SSLMODE", "disable")
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viper.SetDefault("DB_MAX_OPEN_CONNS", 25)
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viper.SetDefault("DB_MAX_IDLE_CONNS", 10)
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viper.SetDefault("DB_MAX_LIFETIME", 600*time.Second)
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// Redis defaults
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viper.SetDefault("REDIS_URL", "redis://localhost:6379/0")
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viper.SetDefault("REDIS_DB", 0)
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// Email defaults
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viper.SetDefault("EMAIL_HOST", "smtp.gmail.com")
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viper.SetDefault("EMAIL_PORT", 587)
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viper.SetDefault("EMAIL_USE_TLS", true)
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viper.SetDefault("DEFAULT_FROM_EMAIL", "MyCrib <noreply@mycrib.com>")
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// Push notification defaults
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viper.SetDefault("GORUSH_URL", "http://localhost:8088")
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viper.SetDefault("APNS_TOPIC", "com.example.mycrib")
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viper.SetDefault("APNS_USE_SANDBOX", true)
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// Worker defaults
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viper.SetDefault("CELERY_BEAT_REMINDER_HOUR", 20)
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viper.SetDefault("CELERY_BEAT_REMINDER_MINUTE", 0)
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}
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func validate(cfg *Config) error {
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if cfg.Security.SecretKey == "" {
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// In development, use a default key
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if cfg.Server.Debug {
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cfg.Security.SecretKey = "development-secret-key-change-in-production"
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} else {
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return fmt.Errorf("SECRET_KEY is required in production")
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}
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}
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if cfg.Database.Password == "" && !cfg.Server.Debug {
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return fmt.Errorf("POSTGRES_PASSWORD is required")
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}
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return nil
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}
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// DSN returns the database connection string
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func (d *DatabaseConfig) DSN() string {
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return fmt.Sprintf(
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"host=%s port=%d user=%s password=%s dbname=%s sslmode=%s",
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d.Host, d.Port, d.User, d.Password, d.Database, d.SSLMode,
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)
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}
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// ReadAPNSKey reads the APNs key from file if path is provided
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func (p *PushConfig) ReadAPNSKey() (string, error) {
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if p.APNSKeyPath == "" {
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return "", nil
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}
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content, err := os.ReadFile(p.APNSKeyPath)
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if err != nil {
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return "", fmt.Errorf("failed to read APNs key: %w", err)
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}
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return string(content), nil
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}
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