import { Arbiter } from '../../src/core/Arbiter.js';
import { RuleEvaluator } from '../../src/authorization/RuleEvaluator.js';
import { describe, it, beforeEach } from 'node:test';
import assert from 'node:assert/strict';

describe.skip('Complex Policy Composition - Enterprise Authorization Scenarios', () => {
  let arbiter;
  let ruleEvaluator;

  beforeEach(() => {
    arbiter = new Arbiter({ embeddingDimensions: 256 });
    ruleEvaluator = new RuleEvaluator(arbiter);
    
    // Set up comprehensive enterprise entities
    setupEnterpriseEntities();
    setupFinancialEntities();
    setupTeamHierarchies();
    setupProjectStructures();
  });

  function setupEnterpriseEntities() {
    // Users
    ['alice', 'bob', 'charlie', 'diana', 'eve', 'frank', 'grace', 'henry'].forEach(name => {
      arbiter.addNode(`user:${name}`, 'user');
    });
    
    // Teams and departments
    ['engineering', 'marketing', 'finance', 'hr', 'legal', 'executive'].forEach(dept => {
      arbiter.addNode(`team:${dept}`, 'team');
      arbiter.addNode(`dept:${dept}`, 'department');
    });
    
    // Roles
    ['ceo', 'cto', 'vp', 'director', 'manager', 'senior', 'junior', 'intern'].forEach(role => {
      arbiter.addNode(`role:${role}`, 'role');
    });
  }

  function setupFinancialEntities() {
    // Financial entities
    ['budget:engineering', 'budget:marketing', 'budget:finance'].forEach(budget => {
      arbiter.addNode(budget, 'budget');
    });
    
    // Accounts and transactions
    ['account:corporate', 'account:engineering', 'account:marketing'].forEach(account => {
      arbiter.addNode(account, 'account');
    });
    
    // Financial thresholds
    ['threshold:low', 'threshold:medium', 'threshold:high', 'threshold:executive'].forEach(threshold => {
      arbiter.addNode(threshold, 'threshold');
    });
  }

  function setupTeamHierarchies() {
    // Team memberships
    const memberships = [
      ['user:alice', 'team:engineering'],
      ['user:bob', 'team:engineering'],
      ['user:charlie', 'team:marketing'],
      ['user:diana', 'team:finance'],
      ['user:eve', 'team:executive'],
      ['user:frank', 'team:legal'],
      ['user:grace', 'team:hr'],
      ['user:henry', 'team:engineering']
    ];
    
    memberships.forEach(([user, team]) => {
      arbiter.addRelation(user, 'member_of', team, { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
    });
    
    // Department relationships
    const deptRelations = [
      ['team:engineering', 'dept:engineering'],
      ['team:marketing', 'dept:marketing'],
      ['team:finance', 'dept:finance'],
      ['team:executive', 'dept:executive']
    ];
    
    deptRelations.forEach(([team, dept]) => {
      arbiter.addRelation(team, 'belongs_to', dept, { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
    });
  }

  function setupProjectStructures() {
    // Projects
    ['project:alpha', 'project:beta', 'project:gamma', 'project:classified'].forEach(project => {
      arbiter.addNode(project, 'project');
    });
    
    // Documents and resources
    ['doc:public', 'doc:internal', 'doc:confidential', 'doc:secret'].forEach(doc => {
      arbiter.addNode(doc, 'document');
    });
    
    // Resources
    ['server:prod', 'server:staging', 'server:dev', 'database:main'].forEach(resource => {
      arbiter.addNode(resource, 'resource');
    });
  }

  describe('Enterprise Financial Authorization', () => {
    it('handles complex budget approval with team hierarchy and spending limits', () => {
      // Set up financial thresholds
      arbiter.addRelation('threshold:low', 'amount', 'budget:engineering', { 
        value: 1000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('threshold:medium', 'amount', 'budget:engineering', { 
        value: 5000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('threshold:high', 'amount', 'budget:engineering', { 
        value: 25000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up user spending limits based on role
      arbiter.addRelation('user:alice', 'spending_limit', 'threshold:medium', { 
        value: 5000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('user:bob', 'spending_limit', 'threshold:low', { 
        value: 1000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up team budget
      arbiter.addRelation('team:engineering', 'budget', 'budget:engineering', { 
        value: 100000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex authorization: user -> team -> budget -> spending limit
      arbiter.setRelationConfig('can_spend', {
        type: 'logical',
        union: {
          rules: [
            { type: 'direct' },
            {
              type: 'chain',
              steps: [
                { relation: 'member_of', direction: 'out' },
                { relation: 'budget', direction: 'out' }
              ]
            },
            {
              type: 'relational_comparator',
              leftRelation: 'spending_limit',
              rightRelation: 'amount',
              operator: '>=',
              decay: { factor: 0.1, maxAge: 86400000 }
            }
          ]
        }
      });
      
      // Test Alice (medium limit) trying to spend $3000
      arbiter.addRelation('user:alice', 'can_spend', 'budget:engineering', { 
        value: 3000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      const result = arbiter.authChecker.check('user:alice', 'can_spend', 'budget:engineering');
      
      assert.ok(result.possibility > 0.8, `Expected high possibility for Alice's spending, got ${result.possibility}`);
      assert.strictEqual(result.reason, 'logical_operator_evaluation');
    });

    it('handles multi-level approval with reputation and risk scoring', () => {
      // Set up user reputation scores
      arbiter.addRelation('user:alice', 'reputation', 'user:alice', { 
        value: 0.9, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('user:bob', 'reputation', 'user:bob', { 
        value: 0.6, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up risk thresholds
      arbiter.addRelation('threshold:risk_low', 'risk_score', 'budget:engineering', { 
        value: 0.3, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('threshold:risk_high', 'risk_score', 'budget:engineering', { 
        value: 0.7, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex approval: reputation + risk + team membership
      arbiter.setRelationConfig('can_approve', {
        type: 'logical',
        intersection: {
          rules: [
            {
              type: 'chain',
              steps: [
                { relation: 'member_of', direction: 'out' },
                { relation: 'can_approve', direction: 'out' }
              ]
            },
            {
              type: 'relational_comparator',
              leftRelation: 'reputation',
              rightRelation: 'risk_score',
              operator: '>=',
              decay: { factor: 0.05, maxAge: 3600000 }
            }
          ]
        }
      });
      
      // Test approval authorization
      const result = arbiter.authChecker.check('user:alice', 'can_approve', 'budget:engineering');
      
      assert.ok(result.possibility > 0.5, `Expected reasonable possibility for approval, got ${result.possibility}`);
    });
  });

  describe('Project Access with Security Clearance', () => {
    it('handles classified project access with clearance levels and team membership', () => {
      // Set up security clearances
      arbiter.addRelation('user:alice', 'clearance', 'user:alice', { 
        value: 0.9, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('user:bob', 'clearance', 'user:bob', { 
        value: 0.4, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up project security levels
      arbiter.addRelation('project:classified', 'security_level', 'project:classified', { 
        value: 0.8, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up team access to projects
      arbiter.addRelation('team:engineering', 'can_access', 'project:classified', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex access: clearance + team membership + project security
      arbiter.setRelationConfig('can_access_project', {
        type: 'logical',
        intersection: {
          rules: [
            {
              type: 'chain',
              steps: [
                { relation: 'member_of', direction: 'out' },
                { relation: 'can_access', direction: 'out' }
              ]
            },
            {
              type: 'relational_comparator',
              leftRelation: 'clearance',
              rightRelation: 'security_level',
              operator: '>=',
              decay: { factor: 0.02, maxAge: 7200000 }
            }
          ]
        }
      });
      
      // Test Alice (high clearance) accessing classified project
      const aliceResult = arbiter.authChecker.check('user:alice', 'can_access_project', 'project:classified');
      assert.ok(aliceResult.possibility > 0.8, `Expected high possibility for Alice, got ${aliceResult.possibility}`);
      
      // Test Bob (low clearance) accessing classified project
      const bobResult = arbiter.authChecker.check('user:bob', 'can_access_project', 'project:classified');
      assert.ok(bobResult.possibility < 0.5, `Expected low possibility for Bob, got ${bobResult.possibility}`);
    });

    it('handles document access with similarity and freshness requirements', () => {
      // Set up document similarity scores
      arbiter.addRelation('doc:confidential', 'similarity', 'doc:secret', { 
        value: 0.8, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up document freshness
      arbiter.addRelation('doc:confidential', 'freshness', 'doc:confidential', { 
        value: 0.9, 
        possibility: 1.0,
        changed_last_at: Date.now() - 3600000 // 1 hour ago
      });
      
      // Set up user document access
      arbiter.addRelation('user:alice', 'can_read', 'doc:confidential', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex document access: similarity + freshness + direct access
      arbiter.setRelationConfig('can_access_document', {
        type: 'logical',
        union: {
          rules: [
            { type: 'direct' },
            {
              type: 'similarity',
              threshold: 0.7,
              relation: 'similarity'
            },
            {
              type: 'relational_comparator',
              leftRelation: 'freshness',
              rightRelation: 'freshness',
              operator: '>=',
              decay: { factor: 0.1, maxAge: 1800000 }
            }
          ]
        }
      });
      
      const result = arbiter.authChecker.check('user:alice', 'can_access_document', 'doc:secret');
      
      assert.ok(result.possibility > 0.5, `Expected reasonable possibility for document access, got ${result.possibility}`);
    });
  });

  describe('Organizational Hierarchy with Delegation', () => {
    it('handles complex delegation chains with approval workflows', () => {
      // Set up organizational hierarchy
      arbiter.addRelation('user:eve', 'reports_to', 'user:alice', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('user:alice', 'reports_to', 'user:charlie', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up delegation permissions
      arbiter.addRelation('user:alice', 'can_delegate', 'user:eve', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up approval authority
      arbiter.addRelation('user:charlie', 'can_approve', 'budget:engineering', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex delegation: hierarchy + delegation + approval
      arbiter.setRelationConfig('can_approve_via_delegation', {
        type: 'logical',
        union: {
          rules: [
            { type: 'direct' },
            {
              type: 'chain',
              steps: [
                { relation: 'reports_to', direction: 'out' },
                { relation: 'can_approve', direction: 'out' }
              ]
            },
            {
              type: 'chain',
              steps: [
                { relation: 'can_delegate', direction: 'out' },
                { relation: 'can_approve_via_delegation', direction: 'out' }
              ]
            }
          ]
        }
      });
      
      // Test delegation chain: Eve -> Alice -> Charlie
      const result = arbiter.authChecker.check('user:eve', 'can_approve_via_delegation', 'budget:engineering');
      
      assert.ok(result.possibility > 0.7, `Expected high possibility for delegation chain, got ${result.possibility}`);
    });

    it('handles team-based resource access with multi-hop traversal', () => {
      // Set up resource access through teams
      arbiter.addRelation('team:engineering', 'can_access', 'server:prod', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('team:engineering', 'can_access', 'database:main', { 
        value: 1.0, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up cross-team access
      arbiter.addRelation('team:marketing', 'can_access', 'team:engineering', { 
        value: 0.5, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure multi-hop access: user -> team -> team -> resource
      arbiter.setRelationConfig('can_access_resource', {
        type: 'multihop',
        maxHops: 3,
        steps: [
          { relation: 'member_of', direction: 'out' },
          { relation: 'can_access', direction: 'out' },
          { relation: 'can_access', direction: 'out' }
        ]
      });
      
      // Test direct team access
      const directResult = arbiter.authChecker.check('user:alice', 'can_access_resource', 'server:prod');
      assert.ok(directResult.possibility > 0.8, `Expected high possibility for direct access, got ${directResult.possibility}`);
      
      // Test cross-team access
      const crossTeamResult = arbiter.authChecker.check('user:charlie', 'can_access_resource', 'server:prod');
      assert.ok(crossTeamResult.possibility > 0.4, `Expected moderate possibility for cross-team access, got ${crossTeamResult.possibility}`);
    });
  });

  describe('Complex Value-Based Authorization', () => {
    it('handles financial transactions with balance, reputation, and risk scoring', () => {
      // Set up user balances
      arbiter.addRelation('user:alice', 'balance', 'account:corporate', { 
        value: 50000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('user:bob', 'balance', 'account:corporate', { 
        value: 5000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up transaction amounts
      arbiter.addRelation('transaction:large', 'amount', 'account:corporate', { 
        value: 10000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('transaction:small', 'amount', 'account:corporate', { 
        value: 1000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up risk scores
      arbiter.addRelation('user:alice', 'risk_score', 'user:alice', { 
        value: 0.2, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      arbiter.addRelation('user:bob', 'risk_score', 'user:bob', { 
        value: 0.8, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex transaction authorization: balance + risk + amount
      arbiter.setRelationConfig('can_transact', {
        type: 'logical',
        intersection: {
          rules: [
            {
              type: 'relational_comparator',
              leftRelation: 'balance',
              rightRelation: 'amount',
              operator: '>=',
              decay: { factor: 0.05, maxAge: 300000 }
            },
            {
              type: 'relational_comparator',
              leftRelation: 'risk_score',
              rightRelation: 'risk_score',
              operator: '<=',
              decay: { factor: 0.1, maxAge: 1800000 }
            }
          ]
        }
      });
      
      // Test Alice (high balance, low risk) with large transaction
      const aliceResult = arbiter.authChecker.check('user:alice', 'can_transact', 'transaction:large');
      assert.ok(aliceResult.possibility > 0.8, `Expected high possibility for Alice's large transaction, got ${aliceResult.possibility}`);
      
      // Test Bob (low balance, high risk) with small transaction
      const bobResult = arbiter.authChecker.check('user:bob', 'can_transact', 'transaction:small');
      assert.ok(bobResult.possibility < 0.5, `Expected low possibility for Bob's transaction, got ${bobResult.possibility}`);
    });

    it('handles resource allocation with team budgets and individual limits', () => {
      // Set up team budgets
      arbiter.addRelation('team:engineering', 'budget', 'budget:engineering', { 
        value: 100000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up individual spending limits
      arbiter.addRelation('user:alice', 'spending_limit', 'budget:engineering', { 
        value: 10000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Set up resource costs
      arbiter.addRelation('server:prod', 'cost', 'budget:engineering', { 
        value: 5000, 
        possibility: 1.0,
        changed_last_at: Date.now()
      });
      
      // Configure complex resource allocation: team budget + individual limit + resource cost
      arbiter.setRelationConfig('can_allocate_resource', {
        type: 'logical',
        intersection: {
          rules: [
            {
              type: 'chain',
              steps: [
                { relation: 'member_of', direction: 'out' },
                { relation: 'budget', direction: 'out' }
              ]
            },
            {
              type: 'relational_comparator',
              leftRelation: 'spending_limit',
              rightRelation: 'cost',
              operator: '>=',
              decay: { factor: 0.1, maxAge: 3600000 }
            }
          ]
        }
      });
      
      const result = arbiter.authChecker.check('user:alice', 'can_allocate_resource', 'server:prod');
      
      assert.ok(result.possibility > 0.7, `Expected high possibility for resource allocation, got ${result.possibility}`);
    });
  });

  describe('Performance and Scalability', () => {
    it('handles large-scale authorization with performance optimization', () => {
      // Set up many users and teams
      for (let i = 0; i < 100; i++) {
        arbiter.addNode(`user:user${i}`, 'user');
        arbiter.addNode(`team:team${i}`, 'team');
        
        arbiter.addRelation(`user:user${i}`, 'member_of', `team:team${i}`, { 
          value: 1.0, 
          possibility: 1.0,
          changed_last_at: Date.now()
        });
      }
      
      // Configure performance-optimized authorization
      arbiter.setRelationConfig('can_access_large_scale', {
        type: 'logical',
        union: {
          rules: [
            { type: 'direct' },
            {
              type: 'chain',
              steps: [
                { relation: 'member_of', direction: 'out' },
                { relation: 'can_access_large_scale', direction: 'out' }
              ]
            }
          ]
        }
      });
      
      // Test with performance options
      const result = arbiter.authChecker.check('user:user50', 'can_access_large_scale', 'team:team50', {
        fastPath: true,
        binary: true,
        trackEvaluation: true
      });
      
      assert.ok(result.possibility > 0.8, `Expected high possibility for large-scale authorization, got ${result.possibility}`);
      assert.ok(result.binary, 'Expected binary mode result');
    });
  });
});
