/**
 * AutonomyManager Tests - L4 Self-Evolution Authorization
 *
 * Tests for the tiered authorization system:
 * - Level-based permissions (supervised/assisted/autonomous)
 * - Risk assessment for actions
 * - Approval workflow
 * - Audit logging
 * - Rollback functionality
 */

import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import {
  AutonomyManager,
  getAutonomyManager,
  resetAutonomyManager,
  canAutoExecute,
  executeWithAutonomy,
  DEFAULT_AUTONOMY_CONFIGS,
  type ActionType,
  type AutonomyLevel,
} from '../autonomy-manager';

// === Helper to create fresh manager ===

function createManager(level: AutonomyLevel = 'assisted'): AutonomyManager {
  resetAutonomyManager();
  return getAutonomyManager({ ...DEFAULT_AUTONOMY_CONFIGS[level] });
}

// === Risk Assessment Tests ===

describe('AutonomyManager Risk Assessment', () => {
  let manager: AutonomyManager;

  beforeEach(() => {
    manager = createManager('assisted');
  });

  afterEach(() => {
    resetAutonomyManager();
  });

  it('should classify memory_save as low risk', () => {
    const decision = manager.evaluate('memory_save', { importance: 3 });
    expect(decision.riskLevel).toBe('low');
  });

  it('should classify memory_delete as high risk', () => {
    const decision = manager.evaluate('memory_delete');
    expect(decision.riskLevel).toBe('high');
  });

  it('should classify identity_update as high risk', () => {
    const decision = manager.evaluate('identity_update');
    expect(decision.riskLevel).toBe('high');
  });

  it('should allow risk override', () => {
    const decision = manager.evaluate('memory_save', { riskOverride: 'high' });
    expect(decision.riskLevel).toBe('high');
  });
});

// === Level-Based Permission Tests ===

describe('AutonomyManager Level Permissions', () => {
  afterEach(() => {
    resetAutonomyManager();
  });

  describe('Supervised Mode', () => {
    let manager: AutonomyManager;

    beforeEach(() => {
      manager = createManager('supervised');
    });

    it('should require approval for all actions', () => {
      const decision = manager.evaluate('memory_save', { importance: 1 });
      expect(decision.requiresApproval).toBe(true);
      expect(decision.allowed).toBe(false);
    });

    it('should not auto-execute even low-risk actions', () => {
      const decision = manager.evaluate('reflection_run', { importance: 1 });
      expect(decision.allowed).toBe(false);
    });
  });

  describe('Assisted Mode', () => {
    let manager: AutonomyManager;

    beforeEach(() => {
      manager = createManager('assisted');
    });

    it('should auto-approve low importance, low risk actions', () => {
      const decision = manager.evaluate('memory_save', { importance: 3 });
      expect(decision.allowed).toBe(true);
      expect(decision.requiresApproval).toBe(false);
    });

    it('should require approval for high importance actions', () => {
      const decision = manager.evaluate('memory_save', { importance: 8 });
      expect(decision.requiresApproval).toBe(true);
    });

    it('should always require approval for high risk actions', () => {
      const decision = manager.evaluate('memory_delete', { importance: 1 });
      expect(decision.requiresApproval).toBe(true);
      expect(decision.allowed).toBe(false);
    });

    it('should not auto-approve identity updates', () => {
      const decision = manager.evaluate('identity_update', { importance: 3 });
      expect(decision.allowed).toBe(false);
      expect(decision.requiresApproval).toBe(true);
    });
  });

  describe('Autonomous Mode', () => {
    let manager: AutonomyManager;

    beforeEach(() => {
      manager = createManager('autonomous');
    });

    it('should auto-approve medium risk, medium importance actions', () => {
      const decision = manager.evaluate('skill_install', { importance: 5 });
      expect(decision.allowed).toBe(true);
      expect(decision.requiresApproval).toBe(false);
    });

    it('should still require approval for high risk actions', () => {
      const decision = manager.evaluate('memory_delete', { importance: 1 });
      expect(decision.allowed).toBe(false);
      expect(decision.requiresApproval).toBe(true);
    });

    it('should not auto-approve self-modification', () => {
      // Even in autonomous mode, self-modification requires approval
      manager.updateConfig({
        allowedActions: {
          ...manager.getConfig().allowedActions,
          selfModification: false,
        },
      });

      const decision = manager.evaluate('identity_update', { importance: 3 });
      expect(decision.allowed).toBe(false);
    });
  });
});

// === Approval Workflow Tests ===

describe('AutonomyManager Approval Workflow', () => {
  let manager: AutonomyManager;

  beforeEach(() => {
    manager = createManager('supervised');
  });

  afterEach(() => {
    resetAutonomyManager();
  });

  it('should request approval and return approval ID', () => {
    const decision = manager.evaluate('memory_save');
    const approvalId = manager.requestApproval(decision);

    expect(approvalId).toMatch(/^approval_/);
    expect(manager.getPendingApprovals().length).toBe(1);
  });

  it('should approve pending action', () => {
    const decision = manager.evaluate('memory_save');
    const approvalId = manager.requestApproval(decision);

    const result = manager.approve(approvalId);
    expect(result).toBe(true);
    expect(manager.getPendingApprovals().length).toBe(0);
  });

  it('should reject pending action', () => {
    const decision = manager.evaluate('memory_save');
    const approvalId = manager.requestApproval(decision);

    const result = manager.reject(approvalId);
    expect(result).toBe(true);
    expect(manager.getPendingApprovals().length).toBe(0);
  });

  it('should return false for non-existent approval', () => {
    expect(manager.approve('non_existent')).toBe(false);
    expect(manager.reject('non_existent')).toBe(false);
  });
});

// === Audit Log Tests ===

describe('AutonomyManager Audit Log', () => {
  let manager: AutonomyManager;

  beforeEach(() => {
    manager = createManager('assisted');
    manager.clearAuditLog();
  });

  afterEach(() => {
    resetAutonomyManager();
  });

  it('should log decisions', () => {
    manager.evaluate('memory_save', { importance: 3 });

    const log = manager.getAuditLog();
    expect(log.length).toBe(1);
    expect(log[0].action).toBe('memory_save');
  });

  it('should limit log to 100 entries', () => {
    for (let i = 0; i < 150; i++) {
      manager.evaluate('memory_save', { importance: i % 10 });
    }

    const log = manager.getAuditLog(200);
    expect(log.length).toBe(100);
  });

  it('should clear audit log', () => {
    manager.evaluate('memory_save');
    manager.evaluate('reflection_run');

    expect(manager.getAuditLog().length).toBe(2);

    manager.clearAuditLog();

    expect(manager.getAuditLog().length).toBe(0);
  });

  it('should support rollback', () => {
    manager.evaluate('memory_save');
    const log = manager.getAuditLog();
    const entryId = log[0].id;

    const result = manager.rollback(entryId);

    expect(result).toBe(true);

    const updatedLog = manager.getAuditLog();
    expect(updatedLog[0].outcome).toBe('rolled_back');
    expect(updatedLog[0].rolledBackAt).toBeDefined();
  });

  it('should not allow double rollback', () => {
    manager.evaluate('memory_save');
    const log = manager.getAuditLog();
    const entryId = log[0].id;

    manager.rollback(entryId);
    const result = manager.rollback(entryId);

    expect(result).toBe(false);
  });
});

// === Config Management Tests ===

describe('AutonomyManager Config Management', () => {
  let manager: AutonomyManager;

  beforeEach(() => {
    manager = createManager('assisted');
  });

  afterEach(() => {
    resetAutonomyManager();
  });

  it('should get current config', () => {
    const config = manager.getConfig();
    expect(config.level).toBe('assisted');
    expect(config.allowedActions.memoryAutoSave).toBe(true);
  });

  it('should update config', () => {
    manager.updateConfig({
      approvalThreshold: {
        importanceMax: 8,
        riskMax: 'medium',
      },
    });

    const config = manager.getConfig();
    expect(config.approvalThreshold.importanceMax).toBe(8);
  });

  it('should change level', () => {
    manager.setLevel('autonomous');

    const config = manager.getConfig();
    expect(config.level).toBe('autonomous');
    expect(config.allowedActions.memoryAutoSave).toBe(true);
    expect(config.allowedActions.identityAutoUpdate).toBe(true);
  });
});

// === Helper Function Tests ===

describe('Helper Functions', () => {
  beforeEach(() => {
    resetAutonomyManager();
    getAutonomyManager({ ...DEFAULT_AUTONOMY_CONFIGS.assisted });
  });

  afterEach(() => {
    resetAutonomyManager();
  });

  describe('canAutoExecute', () => {
    it('should return true for auto-approvable actions', () => {
      const result = canAutoExecute('memory_save', 3);
      expect(result.canProceed).toBe(true);
    });

    it('should return false for actions needing approval', () => {
      const result = canAutoExecute('memory_delete', 1);
      expect(result.canProceed).toBe(false);
    });
  });

  describe('executeWithAutonomy', () => {
    it('should execute auto-approved actions immediately', async () => {
      const executor = vi.fn().mockResolvedValue('success');

      const result = await executeWithAutonomy('memory_save', 3, executor);

      expect(result.executed).toBe(true);
      expect(result.result).toBe('success');
      expect(executor).toHaveBeenCalled();
    });

    it('should not execute actions needing approval', async () => {
      const executor = vi.fn().mockResolvedValue('success');

      const result = await executeWithAutonomy('memory_delete', 1, executor);

      expect(result.executed).toBe(false);
      expect(executor).not.toHaveBeenCalled();
      expect(result.approvalId).toBeDefined();
    });

    it('should call onApprovalNeeded callback', async () => {
      const executor = vi.fn().mockResolvedValue('success');
      const onApprovalNeeded = vi.fn();

      await executeWithAutonomy('memory_delete', 1, executor, onApprovalNeeded);

      expect(onApprovalNeeded).toHaveBeenCalled();
    });
  });
});