/**
 * EO Collab Tool Unit Tests
 * 
 * Tests for the main collaboration tool functionality
 */

import { describe, it, beforeEach, mock } from 'node:test'
import assert from 'node:assert'

// Mock the tools before importing
const mockRagQuery = mock.fn(() => Promise.resolve('Mock RAG query result'))
const mockExpertsList = mock.fn(() => Promise.resolve('Mock experts list'))

// Test suite for handleCollab
describe('EO Collaboration Tool Tests', () => {
  
  describe('handleCollab', () => {
    it('should return available commands when no task provided', async () => {
      // This test verifies the basic structure of collab tool
      const result = await handleCollabMock({})
      assert.ok(result.includes('Available commands') || result.includes('collaboration'), 
        'Should return collaboration info')
    })

    it('should handle empty task parameter', async () => {
      const result = await handleCollabMock({ task: '' })
      assert.ok(typeof result === 'string', 'Should return a string result')
    })
  })

  describe('handleListExperts', () => {
    it('should list available experts', async () => {
      const result = await handleListExpertsMock({})
      assert.ok(typeof result === 'string', 'Should return experts list')
    })

    it('should filter experts by role', async () => {
      const result = await handleListExpertsMock({ filter: 'architect' })
      assert.ok(typeof result === 'string', 'Should return filtered list')
    })
  })
})

// Test suite for eo_plan
describe('EO Plan Tool Tests', () => {
  
  describe('handlePlan', () => {
    it('should generate project plan', async () => {
      const result = await handlePlanMock({ task: 'Build a blog system' })
      assert.ok(typeof result === 'string', 'Should return plan')
    })

    it('should handle complex tasks', async () => {
      const result = await handlePlanMock({ 
        task: 'Create a multi-expert collaboration system' 
      })
      assert.ok(result.length > 0, 'Should return non-empty plan')
    })
  })
})

// Test suite for eo_architect
describe('EO Architect Tool Tests', () => {
  
  describe('handleArchitect', () => {
    it('should generate architecture design', async () => {
      const result = await handleArchitectMock({ task: 'Design a web app' })
      assert.ok(typeof result === 'string', 'Should return architecture')
    })
  })
})

// Test suite for eo_verify
describe('EO Verify Tool Tests', () => {
  
  describe('handleVerify', () => {
    it('should verify checkpoint', async () => {
      const result = await handleVerifyMock({ 
        checkpoint: 'milestone1',
        type: 'code'
      })
      assert.ok(typeof result === 'string', 'Should return verification result')
    })
  })
})

// ============================================================================
// Mock implementations for testing
// These should be replaced with actual imports when running in environment
// ============================================================================

async function handleCollabMock(params: { task?: string }) {
  return JSON.stringify({
    availableCommands: [
      'eo_collab - Main collaboration tool',
      'eo_list_experts - List available experts',
      'eo_plan - Generate project plan',
      'eo_architect - Design system architecture',
      'eo_verify - Verify checkpoint completion',
      'eo_code_review - Code review',
      'eo_dream - Trigger Dream Module',
      'eo_evolve - Trigger evolution',
      'eo_rag_query - Query RAG knowledge base',
      'eo_rag_index - Index content to RAG'
    ],
    task: params.task || 'No task specified'
  })
}

async function handleListExpertsMock(params: { filter?: string }) {
  return JSON.stringify({
    experts: [
      { name: 'System Architect', role: 'Architect' },
      { name: 'Project Planner', role: 'Planner' },
      { name: 'Frontend Expert', role: 'Frontend' },
      { name: 'Backend Expert', role: 'Backend' },
      { name: 'QA Engineer', role: 'QA' },
      { name: 'Security Expert', role: 'Security' },
      { name: 'DevOps Engineer', role: 'DevOps' },
      { name: 'Code Reviewer', role: 'CodeReviewer' }
    ],
    total: 8,
    filter: params.filter || 'none'
  })
}

async function handlePlanMock(params: { task: string }) {
  return JSON.stringify({
    task: params.task,
    wbs: [
      { id: 1, name: 'Requirements Analysis', duration: '2h' },
      { id: 2, name: 'Architecture Design', duration: '4h' },
      { id: 3, name: 'Implementation', duration: '16h' },
      { id: 4, name: 'Testing', duration: '4h' },
      { id: 5, name: 'Deployment', duration: '2h' }
    ],
    milestones: ['Phase 1', 'Phase 2', 'Phase 3']
  })
}

async function handleArchitectMock(params: { task: string }) {
  return JSON.stringify({
    task: params.task,
    architecture: {
      layers: ['Presentation', 'Business Logic', 'Data Access'],
      components: ['API Gateway', 'Auth Service', 'Core Services'],
      technologyStack: ['Node.js', 'TypeScript', 'PostgreSQL']
    }
  })
}

async function handleVerifyMock(params: { checkpoint: string, type?: string }) {
  return JSON.stringify({
    checkpoint: params.checkpoint,
    type: params.type || 'general',
    status: 'passed',
    verifiedAt: new Date().toISOString()
  })
}
