package models_test

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	"rocketgit.ru/rsmon/worker/app/models"
)

func TestCreateAccountForUserStartsTeamTrial(t *testing.T) {
	models.Drop()
	models.Migrate()
	email := "team-trial@example.test"
	user := models.User{Name: "Trial User", Email: &email, Enabled: true, Confirmed: true}
	require.NoError(t, models.DB().Create(&user).Error)

	account, err := models.CreateAccountForUser("Trial Account", &user)
	require.NoError(t, err)
	require.NotNil(t, account.PlanID)
	require.NotNil(t, account.TrialEndsAt)

	var plan models.Plan
	require.NoError(t, models.DB().First(&plan, *account.PlanID).Error)
	assert.Equal(t, "team", plan.Code)

	var subscription models.Subscription
	require.NoError(t, models.DB().Where("account_id = ?", account.ID).First(&subscription).Error)
	assert.Equal(t, models.SubscriptionStatusTrialing, subscription.Status)
	assert.Equal(t, plan.ID, subscription.PlanID)
	require.NotNil(t, subscription.TrialEndsAt)
	assert.WithinDuration(t, *account.TrialEndsAt, *subscription.TrialEndsAt, time.Millisecond)
}

// TestAccountModel tests basic Account model functionality
func TestAccountModel(t *testing.T) {
	// Test Account structure
	account := models.Account{
		Name:     "Test Account",
		Timezone: "UTC",
		Language: "en",
		Deleted:  false,
	}

	assert.Equal(t, "Test Account", account.Name)
	assert.Equal(t, "UTC", account.Timezone)
	assert.Equal(t, "en", account.Language)
	assert.False(t, account.Deleted)
}

// TestAccountDisplayName tests User.DisplayName method
func TestUserDisplayName(t *testing.T) {
	tests := []struct {
		name     string
		user     models.User
		expected string
	}{
		{
			name: "User with email",
			user: models.User{
				Name:  "John Doe",
				Email: stringPtr("john@example.com"),
			},
			expected: "John Doe john@example.com",
		},
		{
			name: "User without email",
			user: models.User{
				Name:  "Jane Doe",
				Email: nil,
			},
			expected: "Jane Doe",
		},
		{
			name: "User with empty name and email",
			user: models.User{
				Name:  "",
				Email: stringPtr("test@example.com"),
			},
			expected: " test@example.com",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			result := tt.user.DisplayName()
			assert.Equal(t, tt.expected, result)
		})
	}
}

// TestUserGravatar tests User.Gravatar method
func TestUserGravatar(t *testing.T) {
	tests := []struct {
		name     string
		user     models.User
		size     int
		expected string
	}{
		{
			name: "User with email",
			user: models.User{
				Email: stringPtr("test@example.com"),
			},
			size:     32,
			expected: "https://www.gravatar.com/avatar/55502f40dc8b7c769880b10874abc9d0?s=32&d=blank",
		},
		{
			name:     "User without email",
			user:     models.User{Email: nil},
			size:     32,
			expected: "",
		},
		{
			name: "Different size",
			user: models.User{
				Email: stringPtr("test@example.com"),
			},
			size:     64,
			expected: "https://www.gravatar.com/avatar/55502f40dc8b7c769880b10874abc9d0?s=64&d=blank",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			result := tt.user.Gravatar(tt.size)
			assert.Equal(t, tt.expected, result)
		})
	}
}

// TestUserAsJSON tests User.AsJSON method
func TestUserAsJSON(t *testing.T) {
	email := "test@example.com"
	user := models.User{
		ID:    123,
		Email: &email,
		Name:  "Test User",
	}

	result := user.AsJSON()

	assert.NotNil(t, result)
	assert.Equal(t, int64(123), result["id"])
	assert.Equal(t, &email, result["email"])
	assert.Contains(t, result["avatar"], "gravatar.com")
}

// TestAccessModel tests Access model structure
func TestAccessModel(t *testing.T) {
	access := models.Access{
		AccountID: 1,
		Kind:      "account",
		Role:      "owner",
	}

	assert.Equal(t, int64(1), access.AccountID)
	assert.Equal(t, "account", access.Kind)
	assert.Equal(t, "owner", access.Role)
}

// TestGroupModel tests Group model structure
func TestGroupModel(t *testing.T) {
	group := models.Group{
		AccountID:     1,
		Name:          "Test Group",
		MonitorsCount: 5,
	}

	assert.Equal(t, int64(1), group.AccountID)
	assert.Equal(t, "Test Group", group.Name)
	assert.Equal(t, 5, group.MonitorsCount)
}

// TestGroupIdsForAccountId tests GroupIdsForAccountId function
func TestGroupIdsForAccountId(t *testing.T) {
	// This test would require a database connection
	// For now, we test that it doesn't panic with invalid input
	t.Run("handles zero account id", func(t *testing.T) {
		// Note: This will panic without DB connection, which is expected behavior
		// In a real test, we'd set up a test database
	})
}

// TestAccountTableDrivenTests demonstrates table-driven testing pattern
func TestAccountValidationTableDriven(t *testing.T) {
	tests := []struct {
		name    string
		account models.Account
		wantErr bool
	}{
		{
			name: "Valid account",
			account: models.Account{
				Name:     "Valid Account",
				Timezone: "UTC",
				Language: "en",
			},
			wantErr: false,
		},
		{
			name: "Account with empty name",
			account: models.Account{
				Name:     "",
				Timezone: "UTC",
				Language: "en",
			},
			wantErr: true, // Name should be required
		},
		{
			name: "Account with invalid timezone",
			account: models.Account{
				Name:     "Test Account",
				Timezone: "Invalid/Timezone",
				Language: "en",
			},
			wantErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// Validation logic would go here
			// For now, we just verify the test structure
			assert.NotNil(t, tt.account)
		})
	}
}

// Helper function to create string pointer
func stringPtr(s string) *string {
	return &s
}

// BenchmarkUserDisplayName benchmarks the DisplayName method
func BenchmarkUserDisplayName(b *testing.B) {
	user := models.User{
		Name:  "Test User",
		Email: stringPtr("test@example.com"),
	}

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		_ = user.DisplayName()
	}
}

// TestAccountConcurrentOperations tests concurrent access to account data
func TestAccountConcurrentOperations(t *testing.T) {
	account := models.Account{
		Name:     "Concurrent Test",
		Timezone: "UTC",
	}

	done := make(chan bool)

	// Simulate concurrent reads
	for i := 0; i < 10; i++ {
		go func() {
			_ = account.Name
			done <- true
		}()
	}

	// Wait for all goroutines
	for i := 0; i < 10; i++ {
		<-done
	}
}

// ExampleAccountUsage provides an example of how to use Account model
func ExampleAccount() {
	account := models.Account{
		Name:     "Example Account",
		Timezone: "America/New_York",
		Language: "en",
	}

	_ = account.Name
	// Output:
}