/**
 * ZCLAW API Integration Tests
 *
 * Uses the mock server to test Hands, Workflows, Security, and Audit APIs
 * via REST endpoints. Does not require WebSocket handshake.
 */

import { afterAll, beforeAll, describe, expect, it } from 'vitest';
import { createZclawMockServer, MockServerInstance } from '../../fixtures/zclaw-mock-server';

describe('ZCLAW API Integration', () => {
  let server: MockServerInstance;
  let baseUrl: string;
  const testPort = 14200;

  beforeAll(async () => {
    server = createZclawMockServer({ port: testPort });
    await server.start();
    baseUrl = server.getHttpUrl();
  });

  afterAll(async () => {
    await server.stop();
  });

  // Helper function for REST calls
  async function restGet(path: string): Promise<Response> {
    return fetch(`${baseUrl}${path}`);
  }

  async function restPost(path: string, body?: unknown): Promise<Response> {
    return fetch(`${baseUrl}${path}`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: body ? JSON.stringify(body) : undefined,
    });
  }

  // === Hands API Tests ===

  describe('Hands API', () => {
    it('GET /api/hands returns hands list', async () => {
      const response = await restGet('/api/hands');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result).toBeDefined();
      expect(result.hands).toBeDefined();
      expect(Array.isArray(result.hands)).toBe(true);
      expect(result.hands.length).toBeGreaterThan(0);

      // Verify default hands are present
      const handNames = result.hands.map((h: { name: string }) => h.name);
      expect(handNames).toContain('clip');
      expect(handNames).toContain('lead');
      expect(handNames).toContain('collector');
      expect(handNames).toContain('predictor');
      expect(handNames).toContain('researcher');
      expect(handNames).toContain('twitter');
      expect(handNames).toContain('browser');
    });

    it('GET /api/hands/:name returns hand details', async () => {
      const response = await restGet('/api/hands/clip');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.name).toBe('clip');
      expect(result.description).toBeDefined();
    });

    it('POST /api/hands/:name/trigger triggers a hand', async () => {
      const response = await restPost('/api/hands/clip/trigger');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.runId).toBeDefined();
      expect(result.status).toBeDefined();
      expect(typeof result.runId).toBe('string');
      expect(result.runId).toMatch(/^run-clip-\d+$/);
    });

    it('POST /api/hands/:name/trigger with params passes parameters', async () => {
      const params = { target: 'video.mp4', quality: 'high' };
      const response = await restPost('/api/hands/clip/trigger', params);
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.runId).toBeDefined();
    });

    it('POST /api/hands/lead/trigger returns needs_approval status', async () => {
      // 'lead' hand requires approval in mock server
      const response = await restPost('/api/hands/lead/trigger');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.status).toBe('needs_approval');
    });

    it('POST /api/hands/:name/runs/:runId/approve approves a hand execution', async () => {
      // First trigger a hand that needs approval
      const triggerResponse = await restPost('/api/hands/lead/trigger');
      const triggerResult = await triggerResponse.json();
      expect(triggerResult.status).toBe('needs_approval');

      // Approve the hand
      const approveResponse = await restPost(
        `/api/hands/lead/runs/${triggerResult.runId}/approve`,
        { approved: true }
      );
      expect(approveResponse.ok).toBe(true);

      const approveResult = await approveResponse.json();
      expect(approveResult.status).toBe('running');
    });

    it('POST /api/hands/:name/runs/:runId/approve rejects a hand execution', async () => {
      // First trigger a hand that needs approval
      const triggerResponse = await restPost('/api/hands/lead/trigger');
      const triggerResult = await triggerResponse.json();

      // Reject the hand
      const rejectResponse = await restPost(
        `/api/hands/lead/runs/${triggerResult.runId}/approve`,
        { approved: false, reason: 'Not authorized' }
      );
      expect(rejectResponse.ok).toBe(true);

      const rejectResult = await rejectResponse.json();
      expect(rejectResult.status).toBe('cancelled');
    });

    it('POST /api/hands/:name/runs/:runId/cancel cancels a running hand', async () => {
      // First trigger a hand
      const triggerResponse = await restPost('/api/hands/collector/trigger');
      const triggerResult = await triggerResponse.json();

      // Cancel it
      const cancelResponse = await restPost(
        `/api/hands/collector/runs/${triggerResult.runId}/cancel`
      );
      expect(cancelResponse.ok).toBe(true);

      const cancelResult = await cancelResponse.json();
      expect(cancelResult.status).toBe('cancelled');
    });

    it('GET /api/hands/:name/runs returns execution history', async () => {
      // Trigger a few hands first
      await restPost('/api/hands/clip/trigger');
      await restPost('/api/hands/collector/trigger');

      const response = await restGet('/api/hands/clip/runs');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.runs).toBeDefined();
      expect(Array.isArray(result.runs)).toBe(true);
      expect(result.runs.length).toBeGreaterThan(0);

      const clipRun = result.runs.find((r: { runId: string }) => r.runId.includes('clip'));
      expect(clipRun).toBeDefined();
      expect(clipRun.status).toBeDefined();
      expect(clipRun.startedAt).toBeDefined();
    });

    it('GET /api/hands/:name returns 404 for non-existent hand', async () => {
      const response = await restGet('/api/hands/nonexistent-hand');
      expect(response.status).toBe(404);
    });

    it('POST /api/hands/:name/trigger returns 404 for non-existent hand', async () => {
      const response = await restPost('/api/hands/nonexistent-hand/trigger');
      expect(response.status).toBe(404);
    });
  });

  // === Workflows API Tests ===

  describe('Workflows API', () => {
    it('GET /api/workflows returns workflows list', async () => {
      const response = await restGet('/api/workflows');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.workflows).toBeDefined();
      expect(Array.isArray(result.workflows)).toBe(true);
      expect(result.workflows.length).toBeGreaterThan(0);

      // Verify default workflows are present
      const workflowIds = result.workflows.map((w: { id: string }) => w.id);
      expect(workflowIds).toContain('wf-001');
      expect(workflowIds).toContain('wf-002');
      expect(workflowIds).toContain('wf-003');
    });

    it('GET /api/workflows/:id returns workflow details', async () => {
      const response = await restGet('/api/workflows/wf-001');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.id).toBe('wf-001');
      expect(result.name).toBeDefined();
      expect(result.steps).toBeDefined();
      expect(Array.isArray(result.steps)).toBe(true);
    });

    it('POST /api/workflows/:id/execute starts a workflow', async () => {
      const input = { topic: 'Test workflow' };
      const response = await restPost('/api/workflows/wf-001/execute', input);
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.runId).toBeDefined();
      expect(result.status).toBeDefined();
      expect(result.status).toBe('running');
      expect(typeof result.runId).toBe('string');
    });

    it('GET /api/workflows/:id/runs/:runId returns execution status', async () => {
      // First execute a workflow
      const executeResponse = await restPost('/api/workflows/wf-001/execute', { data: 'test' });
      const executeResult = await executeResponse.json();

      // Get the run status
      const statusResponse = await restGet(
        `/api/workflows/wf-001/runs/${executeResult.runId}`
      );
      expect(statusResponse.ok).toBe(true);

      const runStatus = await statusResponse.json();
      expect(runStatus.status).toBeDefined();
    });

    it('POST /api/workflows/:id/runs/:runId/cancel cancels a workflow', async () => {
      // First execute a workflow
      const executeResponse = await restPost('/api/workflows/wf-002/execute', {});
      const executeResult = await executeResponse.json();

      // Cancel it
      const cancelResponse = await restPost(
        `/api/workflows/wf-002/runs/${executeResult.runId}/cancel`
      );
      expect(cancelResponse.ok).toBe(true);

      const cancelResult = await cancelResponse.json();
      expect(cancelResult.status).toBe('cancelled');
    });

    it('GET /api/workflows/:id returns 404 for non-existent workflow', async () => {
      const response = await restGet('/api/workflows/nonexistent-wf');
      expect(response.status).toBe(404);
    });

    it('POST /api/workflows/:id/execute returns 404 for non-existent workflow', async () => {
      const response = await restPost('/api/workflows/nonexistent-wf/execute', {});
      expect(response.status).toBe(404);
    });
  });

  // === Security API Tests ===

  describe('Security API', () => {
    it('GET /api/security/status returns security layers', async () => {
      const response = await restGet('/api/security/status');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.layers).toBeDefined();
      expect(Array.isArray(result.layers)).toBe(true);
      expect(result.layers.length).toBe(16);

      // Verify layer structure
      const layer = result.layers[0];
      expect(layer.name).toBeDefined();
      expect(typeof layer.enabled).toBe('boolean');
    });

    it('securityLevel is calculated correctly for critical level', async () => {
      const response = await restGet('/api/security/status');
      const result = await response.json();

      // Default config has 15 enabled layers out of 16
      // This should be 'critical' level (14/16 = 87.5% >= 87.5%)
      const enabledCount = result.layers.filter(
        (l: { enabled: boolean }) => l.enabled
      ).length;
      expect(enabledCount).toBeGreaterThanOrEqual(14);
      expect(result.securityLevel).toBe('critical');
    });

    it('securityLevel is calculated correctly with custom layers', async () => {
      // Set custom security layers with only 10 enabled
      server.setSecurityLayers([
        { name: 'layer1', enabled: true },
        { name: 'layer2', enabled: true },
        { name: 'layer3', enabled: true },
        { name: 'layer4', enabled: true },
        { name: 'layer5', enabled: true },
        { name: 'layer6', enabled: true },
        { name: 'layer7', enabled: true },
        { name: 'layer8', enabled: true },
        { name: 'layer9', enabled: true },
        { name: 'layer10', enabled: true },
        { name: 'layer11', enabled: false },
        { name: 'layer12', enabled: false },
        { name: 'layer13', enabled: false },
        { name: 'layer14', enabled: false },
        { name: 'layer15', enabled: false },
        { name: 'layer16', enabled: false },
      ]);

      const response = await restGet('/api/security/status');
      const result = await response.json();

      expect(result.layers).toBeDefined();
      const enabledCount = result.layers.filter(
        (l: { enabled: boolean }) => l.enabled
      ).length;
      expect(enabledCount).toBe(10);
      expect(result.securityLevel).toBe('high'); // 10/16 = 62.5%
    });

    it('GET /api/capabilities returns capabilities list', async () => {
      const response = await restGet('/api/capabilities');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.capabilities).toBeDefined();
      expect(Array.isArray(result.capabilities)).toBe(true);
      expect(result.capabilities.length).toBeGreaterThan(0);

      // Verify expected capabilities
      expect(result.capabilities).toContain('operator.read');
      expect(result.capabilities).toContain('operator.write');
      expect(result.capabilities).toContain('operator.admin');
      expect(result.capabilities).toContain('operator.approvals');
      expect(result.capabilities).toContain('operator.pairing');
    });
  });

  // === Audit Logs API Tests ===

  describe('Audit Logs API', () => {
    it('GET /api/audit/logs returns paginated logs', async () => {
      const response = await restGet('/api/audit/logs');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.logs).toBeDefined();
      expect(Array.isArray(result.logs)).toBe(true);
    });

    it('GET /api/audit/logs respects limit parameter', async () => {
      // First add some audit logs
      server.addAuditLog({ action: 'test.action', actor: 'test-user', result: 'success' });
      server.addAuditLog({ action: 'test.action2', actor: 'test-user2', result: 'success' });
      server.addAuditLog({ action: 'test.action3', actor: 'test-user3', result: 'failure' });

      const response = await restGet('/api/audit/logs?limit=2');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.logs.length).toBeLessThanOrEqual(2);
    });

    it('GET /api/audit/logs respects offset parameter', async () => {
      // Reset server state and add multiple logs
      server.reset();
      server.addAuditLog({ action: 'action.1', actor: 'user1', result: 'success' });
      server.addAuditLog({ action: 'action.2', actor: 'user2', result: 'success' });
      server.addAuditLog({ action: 'action.3', actor: 'user3', result: 'success' });

      const firstPageResponse = await restGet('/api/audit/logs?limit=1&offset=0');
      const secondPageResponse = await restGet('/api/audit/logs?limit=1&offset=1');

      expect(firstPageResponse.ok).toBe(true);
      expect(secondPageResponse.ok).toBe(true);

      const firstPage = await firstPageResponse.json();
      const secondPage = await secondPageResponse.json();

      expect(firstPage.logs.length).toBe(1);
      expect(secondPage.logs.length).toBe(1);
    });

    it('audit logs contain required fields', async () => {
      server.addAuditLog({
        action: 'hand.trigger',
        actor: 'operator',
        result: 'success',
        details: { handName: 'clip', runId: 'run-123' },
      });

      const response = await restGet('/api/audit/logs');
      const result = await response.json();

      const log = result.logs.find(
        (l: { action: string }) => l.action === 'hand.trigger'
      );

      expect(log).toBeDefined();
      expect(log?.id).toBeDefined();
      expect(log?.timestamp).toBeDefined();
      expect(log?.action).toBe('hand.trigger');
      expect(log?.actor).toBe('operator');
      expect(log?.result).toBe('success');
      expect(log?.details).toBeDefined();
    });
  });

  // === Error Handling Tests ===

  describe('Error Handling', () => {
    it('returns 404 for unknown routes', async () => {
      const response = await restGet('/api/unknown/endpoint');
      expect(response.status).toBe(404);
    });
  });

  // === Agents API Tests ===

  describe('Agents API', () => {
    it('GET /api/agents returns agents list', async () => {
      const response = await restGet('/api/agents');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.clones).toBeDefined();
      expect(Array.isArray(result.clones)).toBe(true);
    });

    it('POST /api/agents creates a new agent', async () => {
      const response = await restPost('/api/agents', {
        name: 'Test Agent',
        role: 'assistant',
        model: 'gpt-4',
      });
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.clone).toBeDefined();
      expect(result.clone.name).toBe('Test Agent');
    });
  });

  // === Chat API Tests ===

  describe('Chat API', () => {
    it('POST /api/chat initiates a chat session', async () => {
      const response = await restPost('/api/chat', {
        message: 'Hello, world!',
        agent_id: 'agent-001',
      });
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.runId).toBeDefined();
      expect(result.sessionId).toBeDefined();
    });
  });

  // === Models API Tests ===

  describe('Models API', () => {
    it('GET /api/models returns available models', async () => {
      const response = await restGet('/api/models');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.models).toBeDefined();
      expect(Array.isArray(result.models)).toBe(true);
      expect(result.models.length).toBeGreaterThan(0);

      const model = result.models[0];
      expect(model.id).toBeDefined();
      expect(model.name).toBeDefined();
      expect(model.provider).toBeDefined();
    });
  });

  // === Config API Tests ===

  describe('Config API', () => {
    it('GET /api/config returns configuration', async () => {
      const response = await restGet('/api/config');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.server).toBeDefined();
      expect(result.agent).toBeDefined();
    });

    it('GET /api/config/quick returns quick config', async () => {
      const response = await restGet('/api/config/quick');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.quickConfig).toBeDefined();
    });
  });

  // === Triggers API Tests ===

  describe('Triggers API', () => {
    it('GET /api/triggers returns triggers list', async () => {
      const response = await restGet('/api/triggers');
      expect(response.ok).toBe(true);

      const result = await response.json();
      expect(result.triggers).toBeDefined();
      expect(Array.isArray(result.triggers)).toBe(true);

      const trigger = result.triggers[0];
      expect(trigger.id).toBeDefined();
      expect(trigger.type).toBeDefined();
      expect(typeof trigger.enabled).toBe('boolean');
    });
  });
});