import { Command } from 'commander';
import chalk from 'chalk';
import ora from 'ora';
import { Logger } from '../../utils/logger.js';

// Import Hooks Components
import { HookRegistry, HookContext, HookExecutionResult, HookDefinition } from '../../core/hooks/hook-registry.js';
import { validateInputHook, logResultHook } from '../../core/hooks/processing-hooks.js';
import { EventTriggers, EventTriggerConfig } from '../../core/hooks/event-triggers.js';

// Import Neural Components
import { WasmNeuralEngine, WasmEngineConfig } from '../../core/neural/wasm-engine.js';
import { NeuralCoordinationModels, CoordinationModelConfig } from '../../core/neural/coordination-models.js';
import { WasmPerformanceOptimizer, WasmOptimizationConfig } from '../../core/neural/wasm-optimization.js';

// Import Advanced Coordination Components
import { PredictiveCoordinationSystem, PredictiveSystemConfig } from '../../core/advanced-coordination/predictive-system.js';
import { AdaptiveLoadBalancer, AdaptiveBalancingConfig } from '../../core/advanced-coordination/adaptive-balancing.js';
import { CoordinationOptimizer, CoordinationOptimizationConfig } from '../../core/advanced-coordination/optimization.js';

// Import Event-Driven Architecture Components
import { EventBus, EventBusConfig } from '../../core/events/event-bus.js';
import { ReactiveCoordination, ReactiveCoordinationConfig } from '../../core/events/reactive-coordination.js';
import { RealTimeMonitoring, RealTimeMonitoringConfig } from '../../core/events/real-time-monitoring.js';

// Import Performance Enhancement Components
import { WasmPerformanceManager, WasmManagerConfig } from '../../core/performance/wasm-manager.js';
import { NeuralPerformanceOptimizer, NeuralOptimizationConfig } from '../../core/performance/neural-optimization.js';

// Import Core Dependencies (for instantiation)
import { SQLiteMemoryCore } from '../../core/sqlite-memory-core.js';
import { MemoryIntelligence } from '../../core/memory-intelligence.js';
import { ToolExecutor } from '../../core/tool-executor.js';
import { ToolRegistry } from '../../core/tool-registry.js';
import { ToolDiscoveryEngine } from '../../core/tool-discovery.js';

// Import GCP Integrations (for instantiation)
import { ModelOrchestrator, ModelOrchestratorConfig } from '../../integrations/vertex-ai/model-orchestrator.js';
import { AgentEnhancement, AgentEnhancementConfig } from '../../integrations/vertex-ai/agent-enhancement.js';
import { DatabaseCoordinator, DatabaseCoordinatorConfig } from '../../integrations/gcp/database-coordinator.js';
import { ComputeCoordinator, ComputeCoordinatorConfig } from '../../integrations/gcp/compute-coordinator.js';
import { CommunicationCoordinator, CommunicationCoordinatorConfig } from '../../integrations/gcp/communication-coordinator.js';

export function registerAdvancedCommands(program: Command) {
  const advancedCommand = program.command('advanced').description('Manage advanced coordination features');

  // --- Initialize Core Dependencies (for all commands) ---
  const logger = new Logger('AdvancedCLI');
  const dbCore = new SQLiteMemoryCore();
  const memoryIntelligence = new MemoryIntelligence(dbCore);
  const toolDiscovery = new ToolDiscoveryEngine();
  const toolRegistry = new ToolRegistry(dbCore);
  const toolExecutor = new ToolExecutor(toolDiscovery);

  // --- Initialize GCP Integrations (for all commands) ---
  const modelOrchestratorConfig: ModelOrchestratorConfig = { defaultModel: 'gemini-pro', availableModels: [] };
  const modelOrchestrator = new ModelOrchestrator(modelOrchestratorConfig);
  const agentEnhancementConfig: AgentEnhancementConfig = { defaultReasoningModel: 'gemini-pro' };
  const agentEnhancement = new AgentEnhancement(agentEnhancementConfig, modelOrchestrator);
  const databaseCoordinatorConfig: DatabaseCoordinatorConfig = { projectID: 'your-gcp-project-id' };
  const databaseCoordinator = new DatabaseCoordinator(databaseCoordinatorConfig);
  const computeCoordinatorConfig: ComputeCoordinatorConfig = { projectID: 'your-gcp-project-id' };
  const computeCoordinator = new ComputeCoordinator(computeCoordinatorConfig);
  const communicationCoordinatorConfig: CommunicationCoordinatorConfig = { projectID: 'your-gcp-project-id', pubSubTopic: 'gemini-flow-events' };
  const communicationCoordinator = new CommunicationCoordinator(communicationCoordinatorConfig);

  // --- Initialize Hooks Components ---
  const hookRegistry = new HookRegistry();
  const eventTriggerConfig: EventTriggerConfig = { projectID: 'your-gcp-project-id', pubSubTopic: 'gemini-flow-events' };
  const eventTriggers = new EventTriggers(eventTriggerConfig, hookRegistry);

  // --- Initialize Neural Components ---
  const wasmEngineConfig: WasmEngineConfig = { simdEnabled: true, threading: 'multi', memoryLimit: '1GB', optimization: 'speed' };
  const wasmNeuralEngine = new WasmNeuralEngine(wasmEngineConfig);
  const coordinationModelConfig: CoordinationModelConfig = { modelType: 'lstm', modelPath: './models/coordination.wasm' };
  const neuralCoordinationModels = new NeuralCoordinationModels(coordinationModelConfig, wasmNeuralEngine);
  const wasmOptimizationConfig: WasmOptimizationConfig = { batchSize: 128, maxWorkers: 4, cacheSize: '100MB' };
  const wasmPerformanceOptimizer = new WasmPerformanceOptimizer(wasmOptimizationConfig, wasmNeuralEngine);

  // --- Initialize Advanced Coordination Components ---
  const predictiveSystemConfig: PredictiveSystemConfig = { projectID: 'your-gcp-project-id' };
  const predictiveCoordinationSystem = new PredictiveCoordinationSystem(predictiveSystemConfig, neuralCoordinationModels);
  const adaptiveBalancingConfig: AdaptiveBalancingConfig = { projectID: 'your-gcp-project-id' };
  const adaptiveLoadBalancer = new AdaptiveLoadBalancer(adaptiveBalancingConfig, predictiveCoordinationSystem);
  const coordinationOptimizationConfig: CoordinationOptimizationConfig = { projectID: 'your-gcp-project-id' };
  const coordinationOptimizer = new CoordinationOptimizer(coordinationOptimizationConfig, neuralCoordinationModels, null as any); // TODO: Pass GcpOperationsSuiteIntegration

  // --- Initialize Event-Driven Architecture Components ---
  const eventBusConfig: EventBusConfig = { projectID: 'your-gcp-project-id', defaultTopic: 'gemini-flow-events' };
  const eventBus = new EventBus(eventBusConfig, communicationCoordinator);
  const reactiveCoordinationConfig: ReactiveCoordinationConfig = { projectID: 'your-gcp-project-id' };
  const reactiveCoordination = new ReactiveCoordination(reactiveCoordinationConfig, eventBus, computeCoordinator, null as any); // TODO: Pass CoordinationEngine
  const realTimeMonitoringConfig: RealTimeMonitoringConfig = { projectID: 'your-gcp-project-id' };
  const realTimeMonitoring = new RealTimeMonitoring(realTimeMonitoringConfig, eventBus, null as any); // TODO: Pass GcpOperationsSuiteIntegration

  // --- Initialize Performance Enhancement Components ---
  const wasmManagerConfig: WasmManagerConfig = { maxWorkers: 4, memoryAllocationStrategy: 'shared' };
  const wasmPerformanceManager = new WasmPerformanceManager(wasmManagerConfig, wasmNeuralEngine);
  const neuralOptimizationConfig: NeuralOptimizationConfig = { projectID: 'your-gcp-project-id' };
  const neuralPerformanceOptimizer = new NeuralPerformanceOptimizer(neuralOptimizationConfig, neuralCoordinationModels, null as any); // TODO: Pass VertexAiPerformanceOptimizer


  // --- Hooks Commands ---
  advancedCommand
    .command('hooks')
    .description('Manage automation hooks')
    .command('list')
    .description('List all registered hooks and their status')
    .action(() => {
      const hooks = hookRegistry.listHooks();
      if (hooks.length === 0) {
        console.log('No hooks registered.');
        return;
      }
      console.log(chalk.blue('\nRegistered Hooks:\n'));
      hooks.forEach(hook => {
        console.log(`  ID: ${hook.id}`);
        console.log(`  Event Type: ${hook.eventType}`);
        console.log(`  Priority: ${hook.priority}`);
        console.log(`  Description: ${hook.description || 'N/A'}`);
        console.log('');
      });
    });

  advancedCommand
    .command('hooks')
    .command('create <hookId> <eventType>')
    .description('Create and register a new automation hook')
    .action((hookId: string, eventType: string) => {
      // Example: Register a simple hook that logs when a task is completed
      const newHook: HookDefinition = {
        id: hookId,
        eventType: eventType,
        priority: 100,
        description: `Logs when ${eventType} occurs.`,
        handler: async (context: HookContext): Promise<HookExecutionResult> => {
          logger.info(`Hook '${hookId}' triggered for event '${eventType}'. Payload:`, context.event.payload);
          return { success: true, message: 'Hook executed.' };
        },
      };
      hookRegistry.registerHook(newHook);
      console.log(chalk.green(`Hook '${hookId}' registered for event type '${eventType}'.`));
    });

  // --- Neural Commands ---
  advancedCommand
    .command('neural')
    .description('Manage WASM neural processing engine')
    .command('init')
    .description('Initialize WASM neural processing engine')
    .action(async () => {
      const spinner = ora('Initializing WASM neural engine...').start();
      try {
        // Initialize neural models (loads the model via the WASM engine)
        await neuralCoordinationModels.initialize();
        spinner.succeed(chalk.green('WASM neural processing engine initialized.'));
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to initialize WASM neural engine: ${error.message}`));
        process.exit(1);
      }
    });

  advancedCommand
    .command('neural')
    .command('train <modelName>')
    .description('Train coordination optimization models (conceptual)')
    .action(async (modelName: string) => {
      const spinner = ora(`Training neural model ${modelName}...`).start();
      try {
        // Conceptual: This would involve feeding data to the neural network for training
        await new Promise(resolve => setTimeout(resolve, 3000));
        spinner.succeed(chalk.green(`Neural model ${modelName} training complete.`));
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to train neural model ${modelName}: ${error.message}`));
        process.exit(1);
      }
    });

  // --- Events Commands ---
  advancedCommand
    .command('events')
    .description('Monitor real-time event streams')
    .command('monitor')
    .description('Start real-time event stream monitoring')
    .action(async () => {
      const spinner = ora('Starting real-time event stream monitoring...').start();
      try {
        await realTimeMonitoring.startEventStreamMonitoring();
        spinner.succeed(chalk.green('Real-time event stream monitoring activated. Events will be logged.'));
        console.log(chalk.gray('Monitoring will run in the background. Press Ctrl+C to exit.'));
        // Keep the process alive
        setInterval(() => {}, 1000 * 60 * 60); // Keep alive for an hour or until killed
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to start event monitoring: ${error.message}`));
        process.exit(1);
      }
    });

  // --- Performance Commands ---
  advancedCommand
    .command('performance')
    .description('Run neural-powered performance optimization')
    .command('optimize')
    .description('Trigger neural-powered performance optimization')
    .action(async () => {
      const spinner = ora('Triggering neural-powered performance optimization...').start();
      try {
        await neuralPerformanceOptimizer.tuneSystemPerformance({}); // Pass empty metrics for simulation
        spinner.succeed(chalk.green('Neural-powered performance optimization initiated.'));
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to optimize performance: ${error.message}`));
        process.exit(1);
      }
    });

  // --- Coordination Commands ---
  advancedCommand
    .command('coordination')
    .description('Manage coordination predictions')
    .command('predict <taskData>')
    .description('Generate coordination performance predictions')
    .action(async (taskData: string) => {
      const spinner = ora('Generating coordination predictions...').start();
      try {
        const parsedTaskData = JSON.parse(taskData);
        const predictedBottlenecks = await predictiveCoordinationSystem.predictBottlenecks(parsedTaskData);
        spinner.succeed(chalk.green('Coordination predictions generated.'));
        console.log(chalk.blue('\nPredicted Coordination Bottlenecks:\n'), predictedBottlenecks);
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to generate predictions: ${error.message}`));
        process.exit(1);
      }
    });
}