import { Command } from 'commander';
import chalk from 'chalk';
import ora from 'ora';
import { Logger } from '../../utils/logger';
import { ToolDiscoveryEngine } from '../../core/tool-discovery';
import { ToolExecutor } from '../../core/tool-executor';
import { ToolRegistry } from '../../core/tool-registry';
import { ToolIntegration } from '../../core/tool-integration';
import { SQLiteMemoryCore } from '../../core/sqlite-memory-core';
import { MemoryIntelligence } from '../../core/memory-intelligence';

export function registerToolsCommands(program: Command) {
  const toolsCommand = program.command('tools').description('Manage MCP tools and their ecosystem');

  // Initialize core components (these would typically be singleton instances managed by a central app context) 
  const logger = new Logger('ToolsCLI');
  const dbCore = new SQLiteMemoryCore();
  const memoryIntelligence = new MemoryIntelligence(dbCore);
  const toolDiscovery = new ToolDiscoveryEngine();
  const toolRegistry = new ToolRegistry(dbCore);
  const toolExecutor = new ToolExecutor(toolDiscovery);
  const toolIntegration = new ToolIntegration(dbCore, memoryIntelligence, toolExecutor, toolRegistry);

  toolsCommand
    .command('list')
    .description('Show all available tools by category')
    .action(async () => {
      const spinner = ora('Discovering tools...').start();
      try {
        await toolDiscovery.discoverTools();
        const allTools = toolDiscovery.listAllTools();
        spinner.succeed(chalk.green('Tools discovered.'));

        if (allTools.length === 0) {
          console.log('No tools found.');
          return;
        }

        console.log(chalk.blue('\nAvailable Tools by Category:\n'));
        const categories = new Set(allTools.map(tool => tool.category));
        categories.forEach(category => {
          console.log(chalk.yellow(`  ${category.charAt(0).toUpperCase() + category.slice(1)}:`));
          const toolsInCategory = allTools.filter(tool => tool.category === category);
          toolsInCategory.forEach(tool => {
            console.log(`    - ${tool.name}`);
            tool.capabilities.forEach(cap => console.log(`      - ${cap.name}: ${cap.description}`));
          });
          console.log('');
        });
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to list tools: ${error.message}`));
        process.exit(1);
      }
    });

  toolsCommand
    .command('discover')
    .description('Auto-discover and register new tools')
    .action(async () => {
      const spinner = ora('Auto-discovering and registering tools...').start();
      try {
        await toolDiscovery.discoverTools();
        // In a real scenario, this would also involve registering discovered tools with the ToolRegistry
        // For now, discoverTools populates toolDiscovery's internal map.
        spinner.succeed(chalk.green('Tools auto-discovered and registered.'));
        console.log(`Found ${toolDiscovery.listAllTools().length} tools.`);
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to auto-discover tools: ${error.message}`));
        process.exit(1);
      }
    });

  toolsCommand
    .command('test <toolName> <methodName> [args...]')
    .description('Validate tool functionality and performance')
    .action(async (toolName: string, methodName: string, args: string[]) => {
      const spinner = ora(`Testing tool ${toolName}.${methodName}...`).start();
      try {
        // Convert string args to appropriate types if necessary
        const parsedArgs = args.map(arg => {
          try { return JSON.parse(arg); } catch { return arg; }
        });

        const result = await toolExecutor.executeTool(toolName, methodName, parsedArgs);
        spinner.succeed(chalk.green(`Tool ${toolName}.${methodName} test successful.`));
        console.log(chalk.blue('\nTest Result:\n'), result);
      } catch (error: any) {
        spinner.fail(chalk.red(`Tool ${toolName}.${methodName} test failed: ${error.message}`));
        process.exit(1);
      }
    });

  toolsCommand
    .command('optimize')
    .description('Optimize tool performance and resource usage')
    .action(async () => {
      const spinner = ora('Optimizing tool performance...').start();
      try {
        // This would trigger performance optimization routines within ToolExecutor or ToolIntegration
        await toolExecutor.manageResources(); // Conceptual resource management
        await toolExecutor.monitorPerformance(); // Conceptual performance monitoring
        spinner.succeed(chalk.green('Tool performance optimization initiated.'));
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to optimize tools: ${error.message}`));
        process.exit(1);
      }
    });

  toolsCommand
    .command('monitor')
    .description('Real-time tool performance monitoring')
    .action(async () => {
      const spinner = ora('Setting up real-time tool monitoring...').start();
      try {
        await toolIntegration.setupRealtimeMonitoringAndAlerting();
        spinner.succeed(chalk.green('Real-time tool monitoring activated. Check logs for alerts.'));
        console.log(chalk.gray('Monitoring will run in the background. Press Ctrl+C to exit.'));
        // Keep the process alive for monitoring
        setInterval(() => {}, 1000 * 60 * 60); // Keep alive for an hour or until killed
      } catch (error: any) {
        spinner.fail(chalk.red(`Failed to set up monitoring: ${error.message}`));
        process.exit(1);
      }
    });

  toolsCommand
    .command('workflow <workflowName>')
    .description('Create and manage tool workflows (conceptual)')
    .action(async (workflowName: string) => {
      console.log(`Managing workflow: ${workflowName}`);
      console.log(chalk.gray('This command is conceptual and will be expanded in future sprints.'));
      // Example: gemini-flow tools workflow create-gcp-db-setup
      // This would involve defining a sequence of tool calls using Cloud SQL, Firestore, etc.
    });
}