/**
 * Strategy implementations for benchmark tasks
 */

import { Task, Result, ResultStatus } from '../core/models';
import { v4 as uuidv4 } from 'uuid';

/**
 * Base strategy interface
 */
export interface Strategy {
  execute(task: Task): Promise<Result>;
}

/**
 * Auto strategy - selects the best strategy based on the task
 */
export class AutoStrategy implements Strategy {
  async execute(task: Task): Promise<Result> {
    // In a real implementation, this would analyze the task and select the best strategy
    // For now, we'll just use a simple implementation
    
    // Create a basic result
    const result = new Result({
      taskId: task.id,
      agentId: `auto-agent-${uuidv4().slice(0, 8)}`,
      status: ResultStatus.SUCCESS,
      output: {
        result: `Auto strategy executed task: ${task.objective}`,
        raw_output: `Task ${task.id} completed successfully using auto strategy selection`
      },
      errors: [],
      warnings: []
    });
    
    // Set some performance metrics
    result.performanceMetrics.executionTime = 0.5;
    result.performanceMetrics.successRate = 1.0;
    result.performanceMetrics.throughput = 1.0;
    
    // Set some resource usage metrics
    result.resourceUsage.cpuPercent = 10;
    result.resourceUsage.averageCpuPercent = 5;
    result.resourceUsage.memoryMb = 100;
    result.resourceUsage.peakMemoryMb = 150;
    
    // Simulate some processing time
    await new Promise(resolve => setTimeout(resolve, 100));
    
    // Mark as completed
    result.completedAt = new Date();
    
    return result;
  }
}

/**
 * Development strategy - for software development tasks
 */
export class DevelopmentStrategy implements Strategy {
  async execute(task: Task): Promise<Result> {
    // Simulate development task execution
    
    // Create a basic result
    const result = new Result({
      taskId: task.id,
      agentId: `dev-agent-${uuidv4().slice(0, 8)}`,
      status: ResultStatus.SUCCESS,
      output: {
        result: `Development strategy executed task: ${task.objective}`,
        raw_output: `Task ${task.id} completed using development approach with code generation and testing`,
        sections: {
          code: 'function example() { return "Hello world"; }',
          tests: 'test("example function", () => { expect(example()).toBe("Hello world"); });'
        }
      },
      errors: [],
      warnings: []
    });
    
    // Set performance metrics
    result.performanceMetrics.executionTime = 1.5;
    result.performanceMetrics.successRate = 0.95;
    result.performanceMetrics.throughput = 0.67;
    
    // Set resource usage metrics
    result.resourceUsage.cpuPercent = 30;
    result.resourceUsage.averageCpuPercent = 20;
    result.resourceUsage.memoryMb = 200;
    result.resourceUsage.peakMemoryMb = 250;
    
    // Simulate processing time
    await new Promise(resolve => setTimeout(resolve, 300));
    
    // Mark as completed
    result.completedAt = new Date();
    
    return result;
  }
}

/**
 * Research strategy - for information gathering tasks
 */
export class ResearchStrategy implements Strategy {
  async execute(task: Task): Promise<Result> {
    // Simulate research task execution
    
    // Create a basic result
    const result = new Result({
      taskId: task.id,
      agentId: `research-agent-${uuidv4().slice(0, 8)}`,
      status: ResultStatus.SUCCESS,
      output: {
        result: `Research strategy executed task: ${task.objective}`,
        raw_output: `Task ${task.id} completed with comprehensive information gathering and analysis`,
        sections: {
          findings: 'Key research findings...',
          analysis: 'Analysis of the results...',
          recommendations: 'Recommended next steps...'
        }
      },
      errors: [],
      warnings: []
    });
    
    // Set performance metrics
    result.performanceMetrics.executionTime = 2.0;
    result.performanceMetrics.successRate = 0.9;
    result.performanceMetrics.throughput = 0.5;
    
    // Set resource usage metrics
    result.resourceUsage.cpuPercent = 25;
    result.resourceUsage.averageCpuPercent = 15;
    result.resourceUsage.memoryMb = 300;
    result.resourceUsage.peakMemoryMb = 350;
    
    // Simulate processing time
    await new Promise(resolve => setTimeout(resolve, 200));
    
    // Mark as completed
    result.completedAt = new Date();
    
    return result;
  }
}

/**
 * Create and return a strategy based on the strategy type
 */
export function create_strategy(strategyType: string): Strategy {
  switch (strategyType.toLowerCase()) {
    case 'development':
      return new DevelopmentStrategy();
    case 'research':
      return new ResearchStrategy();
    case 'auto':
    default:
      return new AutoStrategy();
  }
}