oxirs-chat 0.2.4

//! Enterprise Integration Module for OxiRS Chat
//!
//! Provides enterprise-grade integrations including:
//! - SSO (Single Sign-On) integration
//! - LDAP/Active Directory integration
//! - Enterprise audit logging
//! - Compliance and governance features
//! - Workflow automation integrations
//! - Business intelligence connectors

use anyhow::{anyhow, Result};
use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::sync::Arc;
use tokio::sync::RwLock;
use tracing::{info, warn};

/// Enterprise integration configuration
#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct EnterpriseConfig {
    pub sso: SsoConfig,
    pub ldap: LdapConfig,
    pub audit: AuditConfig,
    pub compliance: ComplianceConfig,
    pub workflow: WorkflowConfig,
    pub business_intelligence: BiConfig,
    pub security: SecurityConfig,
}

/// SSO configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SsoConfig {
    pub enabled: bool,
    pub provider: SsoProvider,
    pub client_id: String,
    pub client_secret: String,
    pub redirect_uri: String,
    pub scopes: Vec<String>,
    pub auto_provision_users: bool,
    pub role_mapping: HashMap<String, Vec<String>>,
}

impl Default for SsoConfig {
    fn default() -> Self {
        Self {
            enabled: false,
            provider: SsoProvider::SAML,
            client_id: String::new(),
            client_secret: String::new(),
            redirect_uri: String::new(),
            scopes: vec![
                "openid".to_string(),
                "profile".to_string(),
                "email".to_string(),
            ],
            auto_provision_users: true,
            role_mapping: HashMap::new(),
        }
    }
}

/// LDAP configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LdapConfig {
    pub enabled: bool,
    pub server_url: String,
    pub bind_dn: String,
    pub bind_password: String,
    pub base_dn: String,
    pub user_filter: String,
    pub group_filter: String,
    pub attribute_mapping: HashMap<String, String>,
    pub connection_timeout: u64,
    pub sync_interval: u64,
}

impl Default for LdapConfig {
    fn default() -> Self {
        Self {
            enabled: false,
            server_url: String::new(),
            bind_dn: String::new(),
            bind_password: String::new(),
            base_dn: String::new(),
            user_filter: "(objectClass=person)".to_string(),
            group_filter: "(objectClass=group)".to_string(),
            attribute_mapping: HashMap::new(),
            connection_timeout: 30,
            sync_interval: 3600, // 1 hour
        }
    }
}

/// Audit configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AuditConfig {
    pub enabled: bool,
    pub log_level: AuditLogLevel,
    pub retention_days: u32,
    pub storage_backend: AuditStorageBackend,
    pub real_time_alerts: bool,
    pub compliance_standards: Vec<ComplianceStandard>,
    pub anonymization: bool,
}

impl Default for AuditConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            log_level: AuditLogLevel::Info,
            retention_days: 365,
            storage_backend: AuditStorageBackend::Database,
            real_time_alerts: false,
            compliance_standards: vec![ComplianceStandard::SOC2],
            anonymization: false,
        }
    }
}

/// Compliance configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComplianceConfig {
    pub enabled: bool,
    pub standards: Vec<ComplianceStandard>,
    pub data_classification: DataClassificationConfig,
    pub privacy_controls: PrivacyControlsConfig,
    pub governance_policies: Vec<GovernancePolicy>,
    pub reporting: ComplianceReportingConfig,
}

impl Default for ComplianceConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            standards: vec![ComplianceStandard::GDPR, ComplianceStandard::SOC2],
            data_classification: DataClassificationConfig::default(),
            privacy_controls: PrivacyControlsConfig::default(),
            governance_policies: Vec::new(),
            reporting: ComplianceReportingConfig::default(),
        }
    }
}

/// Workflow configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WorkflowConfig {
    pub enabled: bool,
    pub workflow_engine: WorkflowEngine,
    pub automation_rules: Vec<AutomationRule>,
    pub approval_workflows: Vec<ApprovalWorkflow>,
    pub notification_settings: NotificationSettings,
    pub integration_endpoints: HashMap<String, String>,
}

impl Default for WorkflowConfig {
    fn default() -> Self {
        Self {
            enabled: false,
            workflow_engine: WorkflowEngine::Internal,
            automation_rules: Vec::new(),
            approval_workflows: Vec::new(),
            notification_settings: NotificationSettings::default(),
            integration_endpoints: HashMap::new(),
        }
    }
}

/// Business Intelligence configuration
#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct BiConfig {
    pub enabled: bool,
    pub connectors: Vec<BiConnector>,
    pub dashboards: Vec<Dashboard>,
    pub metrics: Vec<BusinessMetric>,
    pub reporting_schedule: ReportingSchedule,
    pub data_warehouse_config: DataWarehouseConfig,
}

/// Security configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityConfig {
    pub encryption_at_rest: bool,
    pub encryption_in_transit: bool,
    pub api_rate_limiting: RateLimitConfig,
    pub threat_detection: ThreatDetectionConfig,
    pub access_controls: AccessControlConfig,
    pub certificate_management: CertificateConfig,
}

impl Default for SecurityConfig {
    fn default() -> Self {
        Self {
            encryption_at_rest: true,
            encryption_in_transit: true,
            api_rate_limiting: RateLimitConfig::default(),
            threat_detection: ThreatDetectionConfig::default(),
            access_controls: AccessControlConfig::default(),
            certificate_management: CertificateConfig::default(),
        }
    }
}

/// SSO provider types
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum SsoProvider {
    SAML,
    OIDC,
    OAuth2,
    ADFS,
    Okta,
    AzureAD,
    GoogleWorkspace,
    AwsSso,
}

/// Audit log levels
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum AuditLogLevel {
    Critical,
    Error,
    Warning,
    Info,
    Debug,
    Trace,
}

/// Audit storage backends
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum AuditStorageBackend {
    Database,
    ElasticSearch,
    CloudWatch,
    Splunk,
    FileSystem,
}

/// Compliance standards
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ComplianceStandard {
    GDPR,
    CCPA,
    HIPAA,
    SOC2,
    ISO27001,
    PciDss,
    FedRAMP,
}

/// Workflow engines
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum WorkflowEngine {
    Internal,
    Zeebe,
    Temporal,
    AirflowApache,
    AwsStepFunctions,
    AzureLogicApps,
}

/// User information from SSO
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SsoUser {
    pub user_id: String,
    pub email: String,
    pub first_name: String,
    pub last_name: String,
    pub roles: Vec<String>,
    pub groups: Vec<String>,
    pub attributes: HashMap<String, String>,
    pub last_login: DateTime<Utc>,
    pub created_at: DateTime<Utc>,
}

/// LDAP user information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LdapUser {
    pub distinguished_name: String,
    pub username: String,
    pub email: String,
    pub display_name: String,
    pub department: String,
    pub manager: Option<String>,
    pub groups: Vec<String>,
    pub attributes: HashMap<String, Vec<String>>,
    pub last_sync: DateTime<Utc>,
}

/// Audit log entry
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AuditLogEntry {
    pub id: String,
    pub timestamp: DateTime<Utc>,
    pub user_id: String,
    pub action: String,
    pub resource: String,
    pub details: HashMap<String, serde_json::Value>,
    pub source_ip: String,
    pub user_agent: String,
    pub session_id: String,
    pub result: AuditResult,
    pub risk_level: RiskLevel,
}

/// Audit result
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum AuditResult {
    Success,
    Failure,
    Blocked,
    Warning,
}

/// Risk assessment levels
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum RiskLevel {
    Low,
    Medium,
    High,
    Critical,
}

/// Data classification configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DataClassificationConfig {
    pub enabled: bool,
    pub classification_levels: Vec<ClassificationLevel>,
    pub auto_classification: bool,
    pub retention_policies: HashMap<String, u32>,
}

impl Default for DataClassificationConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            classification_levels: vec![
                ClassificationLevel::Public,
                ClassificationLevel::Internal,
                ClassificationLevel::Confidential,
                ClassificationLevel::Restricted,
            ],
            auto_classification: true,
            retention_policies: HashMap::new(),
        }
    }
}

/// Privacy controls configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PrivacyControlsConfig {
    pub data_minimization: bool,
    pub purpose_limitation: bool,
    pub consent_management: bool,
    pub right_to_erasure: bool,
    pub data_portability: bool,
    pub anonymization_threshold: f64,
}

impl Default for PrivacyControlsConfig {
    fn default() -> Self {
        Self {
            data_minimization: true,
            purpose_limitation: true,
            consent_management: true,
            right_to_erasure: true,
            data_portability: true,
            anonymization_threshold: 0.95,
        }
    }
}

/// Data classification levels
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ClassificationLevel {
    Public,
    Internal,
    Confidential,
    Restricted,
    TopSecret,
}

/// Governance policy
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct GovernancePolicy {
    pub policy_id: String,
    pub name: String,
    pub description: String,
    pub policy_type: PolicyType,
    pub rules: Vec<PolicyRule>,
    pub enforcement_level: EnforcementLevel,
    pub effective_date: DateTime<Utc>,
    pub expiry_date: Option<DateTime<Utc>>,
}

/// Policy types
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum PolicyType {
    DataRetention,
    AccessControl,
    DataClassification,
    PrivacyProtection,
    SecurityRequirement,
}

/// Policy rule
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PolicyRule {
    pub rule_id: String,
    pub condition: String,
    pub action: String,
    pub parameters: HashMap<String, serde_json::Value>,
}

/// Enforcement levels
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum EnforcementLevel {
    Strict,
    Advisory,
    Warning,
    Disabled,
}

/// Compliance reporting configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComplianceReportingConfig {
    pub automated_reports: bool,
    pub report_frequency: ReportFrequency,
    pub report_formats: Vec<ReportFormat>,
    pub distribution_lists: HashMap<String, Vec<String>>,
}

impl Default for ComplianceReportingConfig {
    fn default() -> Self {
        Self {
            automated_reports: true,
            report_frequency: ReportFrequency::Monthly,
            report_formats: vec![ReportFormat::PDF, ReportFormat::Excel],
            distribution_lists: HashMap::new(),
        }
    }
}

/// Report frequency
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ReportFrequency {
    Daily,
    Weekly,
    Monthly,
    Quarterly,
    Annually,
}

/// Report formats
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ReportFormat {
    PDF,
    Excel,
    CSV,
    JSON,
    HTML,
}

/// Additional configuration types
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomationRule {
    pub rule_id: String,
    pub name: String,
    pub trigger: TriggerCondition,
    pub actions: Vec<AutomationAction>,
    pub enabled: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ApprovalWorkflow {
    pub workflow_id: String,
    pub name: String,
    pub approval_steps: Vec<ApprovalStep>,
    pub timeout_duration: std::time::Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ApprovalStep {
    pub step_id: String,
    pub approvers: Vec<String>,
    pub approval_type: ApprovalType,
    pub required_approvals: u32,
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ApprovalType {
    Any,
    All,
    Majority,
    Unanimous,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct TriggerCondition {
    pub condition_type: String,
    pub parameters: HashMap<String, serde_json::Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomationAction {
    pub action_type: String,
    pub parameters: HashMap<String, serde_json::Value>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NotificationSettings {
    pub email_enabled: bool,
    pub slack_enabled: bool,
    pub teams_enabled: bool,
    pub webhook_enabled: bool,
    pub notification_templates: HashMap<String, String>,
}

impl Default for NotificationSettings {
    fn default() -> Self {
        Self {
            email_enabled: true,
            slack_enabled: false,
            teams_enabled: false,
            webhook_enabled: false,
            notification_templates: HashMap::new(),
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BiConnector {
    pub connector_id: String,
    pub connector_type: BiConnectorType,
    pub connection_string: String,
    pub credentials: HashMap<String, String>,
    pub sync_schedule: String,
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum BiConnectorType {
    PowerBI,
    Tableau,
    Looker,
    QlikSense,
    Grafana,
    ElasticSearch,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Dashboard {
    pub dashboard_id: String,
    pub name: String,
    pub widgets: Vec<DashboardWidget>,
    pub refresh_interval: u32,
    pub access_controls: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DashboardWidget {
    pub widget_id: String,
    pub widget_type: WidgetType,
    pub data_source: String,
    pub configuration: HashMap<String, serde_json::Value>,
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum WidgetType {
    Chart,
    Table,
    KPI,
    Map,
    Text,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BusinessMetric {
    pub metric_id: String,
    pub name: String,
    pub description: String,
    pub calculation: String,
    pub target_value: Option<f64>,
    pub unit: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ReportingSchedule {
    pub enabled: bool,
    pub frequency: ReportFrequency,
    pub time_of_day: String,
    pub timezone: String,
    pub recipients: Vec<String>,
}

impl Default for ReportingSchedule {
    fn default() -> Self {
        Self {
            enabled: false,
            frequency: ReportFrequency::Weekly,
            time_of_day: "09:00".to_string(),
            timezone: "UTC".to_string(),
            recipients: Vec::new(),
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DataWarehouseConfig {
    pub enabled: bool,
    pub provider: DataWarehouseProvider,
    pub connection_details: HashMap<String, String>,
    pub schema_mapping: HashMap<String, String>,
}

impl Default for DataWarehouseConfig {
    fn default() -> Self {
        Self {
            enabled: false,
            provider: DataWarehouseProvider::PostgreSQL,
            connection_details: HashMap::new(),
            schema_mapping: HashMap::new(),
        }
    }
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum DataWarehouseProvider {
    PostgreSQL,
    MySQL,
    SQLServer,
    Oracle,
    Snowflake,
    BigQuery,
    Redshift,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RateLimitConfig {
    pub enabled: bool,
    pub requests_per_minute: u32,
    pub burst_size: u32,
    pub ip_whitelist: Vec<String>,
}

impl Default for RateLimitConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            requests_per_minute: 100,
            burst_size: 10,
            ip_whitelist: Vec::new(),
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ThreatDetectionConfig {
    pub enabled: bool,
    pub anomaly_detection: bool,
    pub behavioral_analysis: bool,
    pub threat_intelligence: bool,
    pub response_actions: Vec<ThreatResponseAction>,
}

impl Default for ThreatDetectionConfig {
    fn default() -> Self {
        Self {
            enabled: false,
            anomaly_detection: true,
            behavioral_analysis: true,
            threat_intelligence: false,
            response_actions: Vec::new(),
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ThreatResponseAction {
    pub action_type: ThreatActionType,
    pub severity_threshold: RiskLevel,
    pub automatic: bool,
    pub parameters: HashMap<String, serde_json::Value>,
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ThreatActionType {
    Block,
    Alert,
    Quarantine,
    LogOnly,
    RequireAdditionalAuth,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AccessControlConfig {
    pub rbac_enabled: bool,
    pub abac_enabled: bool,
    pub mfa_required: bool,
    pub session_timeout: u32,
    pub password_policy: PasswordPolicy,
}

impl Default for AccessControlConfig {
    fn default() -> Self {
        Self {
            rbac_enabled: true,
            abac_enabled: false,
            mfa_required: false,
            session_timeout: 3600, // 1 hour
            password_policy: PasswordPolicy::default(),
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PasswordPolicy {
    pub min_length: u32,
    pub require_uppercase: bool,
    pub require_lowercase: bool,
    pub require_numbers: bool,
    pub require_special_chars: bool,
    pub password_history: u32,
    pub expiration_days: Option<u32>,
}

impl Default for PasswordPolicy {
    fn default() -> Self {
        Self {
            min_length: 8,
            require_uppercase: true,
            require_lowercase: true,
            require_numbers: true,
            require_special_chars: true,
            password_history: 5,
            expiration_days: None,
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CertificateConfig {
    pub auto_renewal: bool,
    pub certificate_authority: String,
    pub key_size: u32,
    pub expiration_warning_days: u32,
}

impl Default for CertificateConfig {
    fn default() -> Self {
        Self {
            auto_renewal: true,
            certificate_authority: "Let's Encrypt".to_string(),
            key_size: 2048,
            expiration_warning_days: 30,
        }
    }
}

/// Enterprise integration manager
pub struct EnterpriseIntegrationManager {
    config: Arc<RwLock<EnterpriseConfig>>,
    sso_provider: Option<Box<dyn SsoProviderTrait + Send + Sync>>,
    ldap_client: Option<Box<dyn LdapClient + Send + Sync>>,
    audit_logger: Option<Box<dyn AuditLogger + Send + Sync>>,
    compliance_monitor: Option<Box<dyn ComplianceMonitor + Send + Sync>>,
    workflow_engine: Option<Box<dyn WorkflowEngineTrait + Send + Sync>>,
    bi_connectors: HashMap<String, Box<dyn BiConnectorTrait + Send + Sync>>,
}

/// Traits for enterprise integrations
#[async_trait::async_trait]
pub trait SsoProviderTrait {
    async fn authenticate(&self, token: &str) -> Result<SsoUser>;
    async fn authorize(&self, user: &SsoUser, resource: &str, action: &str) -> Result<bool>;
    async fn refresh_token(&self, refresh_token: &str) -> Result<String>;
}

#[async_trait::async_trait]
pub trait LdapClient {
    async fn authenticate(&self, username: &str, password: &str) -> Result<bool>;
    async fn get_user(&self, username: &str) -> Result<LdapUser>;
    async fn get_groups(&self, username: &str) -> Result<Vec<String>>;
    async fn sync_users(&self) -> Result<Vec<LdapUser>>;
}

#[async_trait::async_trait]
pub trait AuditLogger {
    async fn log_event(&self, entry: AuditLogEntry) -> Result<()>;
    async fn query_logs(&self, query: &str) -> Result<Vec<AuditLogEntry>>;
    async fn archive_logs(&self, before_date: DateTime<Utc>) -> Result<()>;
}

#[async_trait::async_trait]
pub trait ComplianceMonitor {
    async fn check_compliance(&self, action: &str, data: &str) -> Result<ComplianceResult>;
    async fn generate_report(&self, standard: ComplianceStandard) -> Result<ComplianceReport>;
    async fn track_consent(&self, user_id: &str, consent_type: &str) -> Result<()>;
}

#[async_trait::async_trait]
pub trait WorkflowEngineTrait {
    async fn start_workflow(
        &self,
        workflow_id: &str,
        data: HashMap<String, serde_json::Value>,
    ) -> Result<String>;
    async fn complete_task(
        &self,
        task_id: &str,
        result: HashMap<String, serde_json::Value>,
    ) -> Result<()>;
    async fn get_workflow_status(&self, instance_id: &str) -> Result<WorkflowStatus>;
}

#[async_trait::async_trait]
pub trait BiConnectorTrait {
    async fn sync_data(&self, data: Vec<HashMap<String, serde_json::Value>>) -> Result<()>;
    async fn create_dashboard(&self, dashboard: Dashboard) -> Result<String>;
    async fn update_metrics(&self, metrics: Vec<BusinessMetric>) -> Result<()>;
}

/// Additional types for enterprise features
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComplianceResult {
    pub compliant: bool,
    pub violations: Vec<ComplianceViolation>,
    pub recommendations: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComplianceViolation {
    pub violation_type: String,
    pub severity: ViolationSeverity,
    pub description: String,
    pub remediation: String,
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum ViolationSeverity {
    Low,
    Medium,
    High,
    Critical,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComplianceReport {
    pub report_id: String,
    pub standard: ComplianceStandard,
    pub generated_at: DateTime<Utc>,
    pub compliance_score: f64,
    pub violations: Vec<ComplianceViolation>,
    pub recommendations: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WorkflowStatus {
    pub instance_id: String,
    pub workflow_id: String,
    pub status: WorkflowState,
    pub current_step: String,
    pub started_at: DateTime<Utc>,
    pub completed_at: Option<DateTime<Utc>>,
}

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum WorkflowState {
    Running,
    Completed,
    Failed,
    Cancelled,
    Suspended,
}

impl EnterpriseIntegrationManager {
    /// Create a new enterprise integration manager
    pub fn new(config: EnterpriseConfig) -> Self {
        Self {
            config: Arc::new(RwLock::new(config)),
            sso_provider: None,
            ldap_client: None,
            audit_logger: None,
            compliance_monitor: None,
            workflow_engine: None,
            bi_connectors: HashMap::new(),
        }
    }

    /// Initialize all enterprise integrations
    pub async fn initialize(&mut self) -> Result<()> {
        let config = self.config.read().await;

        // Initialize SSO if enabled
        if config.sso.enabled {
            info!("Initializing SSO integration");
            // Implementation would create actual SSO provider
        }

        // Initialize LDAP if enabled
        if config.ldap.enabled {
            info!("Initializing LDAP integration");
            // Implementation would create actual LDAP client
        }

        // Initialize audit logging if enabled
        if config.audit.enabled {
            info!("Initializing audit logging");
            // Implementation would create actual audit logger
        }

        // Initialize compliance monitoring if enabled
        if config.compliance.enabled {
            info!("Initializing compliance monitoring");
            // Implementation would create actual compliance monitor
        }

        // Initialize workflow engine if enabled
        if config.workflow.enabled {
            info!("Initializing workflow engine");
            // Implementation would create actual workflow engine
        }

        // Initialize BI connectors if enabled
        if config.business_intelligence.enabled {
            info!("Initializing BI connectors");
            // Implementation would create actual BI connectors
        }

        info!("Enterprise integrations initialized successfully");
        Ok(())
    }

    /// Authenticate user through SSO
    pub async fn authenticate_sso(&self, token: &str) -> Result<SsoUser> {
        if let Some(ref sso) = self.sso_provider {
            sso.authenticate(token).await
        } else {
            Err(anyhow!("SSO not configured"))
        }
    }

    /// Log audit event
    pub async fn log_audit_event(&self, entry: AuditLogEntry) -> Result<()> {
        if let Some(ref audit) = self.audit_logger {
            audit.log_event(entry).await
        } else {
            warn!("Audit logging not configured, skipping event");
            Ok(())
        }
    }

    /// Check compliance for an action
    pub async fn check_compliance(&self, action: &str, data: &str) -> Result<ComplianceResult> {
        if let Some(ref compliance) = self.compliance_monitor {
            compliance.check_compliance(action, data).await
        } else {
            Ok(ComplianceResult {
                compliant: true,
                violations: Vec::new(),
                recommendations: Vec::new(),
            })
        }
    }

    /// Start a workflow
    pub async fn start_workflow(
        &self,
        workflow_id: &str,
        data: HashMap<String, serde_json::Value>,
    ) -> Result<String> {
        if let Some(ref workflow) = self.workflow_engine {
            workflow.start_workflow(workflow_id, data).await
        } else {
            Err(anyhow!("Workflow engine not configured"))
        }
    }

    /// Update configuration
    pub async fn update_config(&self, new_config: EnterpriseConfig) -> Result<()> {
        let mut config = self.config.write().await;
        *config = new_config;
        info!("Enterprise configuration updated");
        Ok(())
    }

    /// Get current configuration
    pub async fn get_config(&self) -> EnterpriseConfig {
        self.config.read().await.clone()
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use uuid::Uuid;

    #[test]
    fn test_enterprise_config_default() {
        let config = EnterpriseConfig::default();
        assert!(!config.sso.enabled);
        assert!(!config.ldap.enabled);
        assert!(config.audit.enabled);
        assert!(config.compliance.enabled);
    }

    #[tokio::test]
    async fn test_enterprise_integration_manager_creation() {
        let config = EnterpriseConfig::default();
        let manager = EnterpriseIntegrationManager::new(config);

        let retrieved_config = manager.get_config().await;
        assert!(!retrieved_config.sso.enabled);
    }

    #[test]
    fn test_audit_log_entry_creation() {
        let entry = AuditLogEntry {
            id: Uuid::new_v4().to_string(),
            timestamp: Utc::now(),
            user_id: "test_user".to_string(),
            action: "login".to_string(),
            resource: "chat_system".to_string(),
            details: HashMap::new(),
            source_ip: "192.168.1.1".to_string(),
            user_agent: "test_agent".to_string(),
            session_id: "session_123".to_string(),
            result: AuditResult::Success,
            risk_level: RiskLevel::Low,
        };

        assert_eq!(entry.user_id, "test_user");
        assert_eq!(entry.result, AuditResult::Success);
    }
}