package service

import (
	"context"
	"testing"
	"time"

	"github.com/user-management-system/internal/cache"
)

// =============================================================================
// Email Configuration Tests
// =============================================================================

func TestDefaultEmailCodeConfig(t *testing.T) {
	cfg := DefaultEmailCodeConfig()

	if cfg.CodeTTL != 5*time.Minute {
		t.Errorf("CodeTTL = %v, want %v", cfg.CodeTTL, 5*time.Minute)
	}
	if cfg.ResendCooldown != time.Minute {
		t.Errorf("ResendCooldown = %v, want %v", cfg.ResendCooldown, time.Minute)
	}
	if cfg.MaxDailyLimit != 10 {
		t.Errorf("MaxDailyLimit = %d, want 10", cfg.MaxDailyLimit)
	}
	if cfg.SiteURL != "http://localhost:8080" {
		t.Errorf("SiteURL = %q, want %q", cfg.SiteURL, "http://localhost:8080")
	}
	if cfg.SiteName != "User Management System" {
		t.Errorf("SiteName = %q, want %q", cfg.SiteName, "User Management System")
	}
}

// =============================================================================
// Email Code Service Tests
// =============================================================================

func TestNewEmailCodeService(t *testing.T) {
	t.Run("with default config", func(t *testing.T) {
		l1Cache := cache.NewL1Cache()
		l2Cache := cache.NewRedisCache(false)
		cacheManager := cache.NewCacheManager(l1Cache, l2Cache)
		provider := &MockEmailProvider{}

		svc := NewEmailCodeService(provider, cacheManager, EmailCodeConfig{})
		if svc == nil {
			t.Error("Expected service to be created")
		}
	})

	t.Run("with custom config", func(t *testing.T) {
		l1Cache := cache.NewL1Cache()
		l2Cache := cache.NewRedisCache(false)
		cacheManager := cache.NewCacheManager(l1Cache, l2Cache)
		provider := &MockEmailProvider{}

		cfg := EmailCodeConfig{
			CodeTTL:        10 * time.Minute,
			ResendCooldown: 2 * time.Minute,
			MaxDailyLimit:  20,
		}

		svc := NewEmailCodeService(provider, cacheManager, cfg)
		if svc == nil {
			t.Error("Expected service to be created")
		}
	})
}

func TestEmailCodeService_SendEmailCode(t *testing.T) {
	t.Run("with valid email", func(t *testing.T) {
		l1Cache := cache.NewL1Cache()
		l2Cache := cache.NewRedisCache(false)
		cacheManager := cache.NewCacheManager(l1Cache, l2Cache)
		provider := &MockEmailProvider{}

		svc := NewEmailCodeService(provider, cacheManager, DefaultEmailCodeConfig())
		err := svc.SendEmailCode(context.Background(), "test@example.com", "login")
		if err != nil {
			t.Errorf("Unexpected error: %v", err)
		}
	})
}