package config

import (
	"fmt"
	"os"
)

type Config struct {
	Port              string
	DatabaseURL       string
	SupabaseURL       string
	SupabaseAnonKey   string
	SupabaseServiceKey string
	SupabaseJWTSecret string
	AnthropicAPIKey   string
}

func Load() (*Config, error) {
	cfg := &Config{
		Port:             getEnv("PORT", "8080"),
		DatabaseURL:      os.Getenv("DATABASE_URL"),
		SupabaseURL:      os.Getenv("SUPABASE_URL"),
		SupabaseAnonKey:   os.Getenv("SUPABASE_ANON_KEY"),
		SupabaseServiceKey: os.Getenv("SUPABASE_SERVICE_KEY"),
		SupabaseJWTSecret: os.Getenv("SUPABASE_JWT_SECRET"),
		AnthropicAPIKey:  os.Getenv("ANTHROPIC_API_KEY"),
	}

	if cfg.DatabaseURL == "" {
		return nil, fmt.Errorf("DATABASE_URL is required")
	}
	if cfg.SupabaseJWTSecret == "" {
		return nil, fmt.Errorf("SUPABASE_JWT_SECRET is required")
	}

	return cfg, nil
}

func getEnv(key, fallback string) string {
	if v := os.Getenv(key); v != "" {
		return v
	}
	return fallback
}