import { describe, it, expect, vi, beforeEach } from 'vitest';
import { createCreateCommand } from '../../src/commands/create.js';
import { type ApiClient, ApiError } from '../../src/api-client.js';

function mockClient(): ApiClient {
  return {
    get: vi.fn(async () => []),
    post: vi.fn(async () => ({ id: 'new-id', name: 'test' })),
    put: vi.fn(async () => ({})),
    delete: vi.fn(async () => {}),
  } as unknown as ApiClient;
}

describe('create command', () => {
  let client: ReturnType<typeof mockClient>;
  let output: string[];
  const log = (...args: unknown[]) => output.push(args.map(String).join(' '));

  beforeEach(() => {
    client = mockClient();
    output = [];
  });

  describe('create server', () => {
    it('creates a server with minimal flags', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['server', 'my-server'], { from: 'user' });
      expect(client.post).toHaveBeenCalledWith('/api/v1/servers', expect.objectContaining({
        name: 'my-server',
        transport: 'STDIO',
        replicas: 1,
      }));
      expect(output.join('\n')).toContain("server 'test' created");
    });

    it('creates a server with all flags', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync([
        'server', 'ha-mcp',
        '-d', 'Home Assistant MCP',
        '--docker-image', 'ghcr.io/ha-mcp:latest',
        '--transport', 'STREAMABLE_HTTP',
        '--external-url', 'http://localhost:8086/mcp',
        '--container-port', '3000',
        '--replicas', '2',
        '--command', 'python',
        '--command', '-c',
        '--command', 'print("hello")',
        '--env', 'API_KEY=secretRef:creds:API_KEY',
        '--env', 'BASE_URL=http://localhost',
      ], { from: 'user' });

      expect(client.post).toHaveBeenCalledWith('/api/v1/servers', {
        name: 'ha-mcp',
        description: 'Home Assistant MCP',
        dockerImage: 'ghcr.io/ha-mcp:latest',
        transport: 'STREAMABLE_HTTP',
        externalUrl: 'http://localhost:8086/mcp',
        containerPort: 3000,
        replicas: 2,
        command: ['python', '-c', 'print("hello")'],
        env: [
          { name: 'API_KEY', valueFrom: { secretRef: { name: 'creds', key: 'API_KEY' } } },
          { name: 'BASE_URL', value: 'http://localhost' },
        ],
      });
    });

    it('defaults transport to STDIO', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['server', 'test'], { from: 'user' });
      expect(client.post).toHaveBeenCalledWith('/api/v1/servers', expect.objectContaining({
        transport: 'STDIO',
      }));
    });

    it('strips null values from template when using --from-template', async () => {
      vi.mocked(client.get).mockResolvedValueOnce([{
        id: 'tpl-1',
        name: 'grafana',
        version: '1.0.0',
        description: 'Grafana MCP',
        packageName: '@leval/mcp-grafana',
        dockerImage: null,
        transport: 'STDIO',
        repositoryUrl: 'https://github.com/test',
        externalUrl: null,
        command: null,
        containerPort: null,
        replicas: 1,
        env: [{ name: 'TOKEN', required: true, description: 'A token' }],
        healthCheck: { tool: 'test', arguments: {} },
        createdAt: '2025-01-01',
        updatedAt: '2025-01-01',
      }] as never);
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync([
        'server', 'my-grafana', '--from-template=grafana',
        '--env', 'TOKEN=secretRef:creds:TOKEN',
      ], { from: 'user' });
      const call = vi.mocked(client.post).mock.calls[0]![1] as Record<string, unknown>;
      // null fields from template should NOT be in the body
      expect(call).not.toHaveProperty('dockerImage');
      expect(call).not.toHaveProperty('externalUrl');
      expect(call).not.toHaveProperty('command');
      expect(call).not.toHaveProperty('containerPort');
      // non-null fields should be present
      expect(call.packageName).toBe('@leval/mcp-grafana');
      expect(call.healthCheck).toEqual({ tool: 'test', arguments: {} });
      expect(call.templateName).toBe('grafana');
    });

    it('throws on 409 without --force', async () => {
      vi.mocked(client.post).mockRejectedValueOnce(new ApiError(409, '{"error":"Server already exists: my-server"}'));
      const cmd = createCreateCommand({ client, log });
      await expect(cmd.parseAsync(['server', 'my-server'], { from: 'user' })).rejects.toThrow('API error 409');
    });

    it('updates existing server on 409 with --force', async () => {
      vi.mocked(client.post).mockRejectedValueOnce(new ApiError(409, '{"error":"Server already exists"}'));
      vi.mocked(client.get).mockResolvedValueOnce([{ id: 'srv-1', name: 'my-server' }] as never);
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['server', 'my-server', '--force'], { from: 'user' });
      expect(client.put).toHaveBeenCalledWith('/api/v1/servers/srv-1', expect.objectContaining({
        transport: 'STDIO',
      }));
      expect(output.join('\n')).toContain("server 'my-server' updated");
    });
  });

  describe('create secret', () => {
    it('creates a secret with --data flags', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync([
        'secret', 'ha-creds',
        '--data', 'TOKEN=abc123',
        '--data', 'URL=https://ha.local',
      ], { from: 'user' });
      expect(client.post).toHaveBeenCalledWith('/api/v1/secrets', {
        name: 'ha-creds',
        data: { TOKEN: 'abc123', URL: 'https://ha.local' },
      });
      expect(output.join('\n')).toContain("secret 'test' created");
    });

    it('creates a secret with empty data', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['secret', 'empty-secret'], { from: 'user' });
      expect(client.post).toHaveBeenCalledWith('/api/v1/secrets', {
        name: 'empty-secret',
        data: {},
      });
    });

    it('throws on 409 without --force', async () => {
      vi.mocked(client.post).mockRejectedValueOnce(new ApiError(409, '{"error":"Secret already exists: my-creds"}'));
      const cmd = createCreateCommand({ client, log });
      await expect(cmd.parseAsync(['secret', 'my-creds', '--data', 'KEY=val'], { from: 'user' })).rejects.toThrow('API error 409');
    });

    it('updates existing secret on 409 with --force', async () => {
      vi.mocked(client.post).mockRejectedValueOnce(new ApiError(409, '{"error":"Secret already exists"}'));
      vi.mocked(client.get).mockResolvedValueOnce([{ id: 'sec-1', name: 'my-creds' }] as never);
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['secret', 'my-creds', '--data', 'KEY=val', '--force'], { from: 'user' });
      expect(client.put).toHaveBeenCalledWith('/api/v1/secrets/sec-1', { data: { KEY: 'val' } });
      expect(output.join('\n')).toContain("secret 'my-creds' updated");
    });
  });

  describe('create project', () => {
    it('creates a project', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['project', 'my-project', '-d', 'A test project'], { from: 'user' });
      expect(client.post).toHaveBeenCalledWith('/api/v1/projects', {
        name: 'my-project',
        description: 'A test project',
      });
      expect(output.join('\n')).toContain("project 'test' created");
    });

    it('creates a project with no description', async () => {
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['project', 'minimal'], { from: 'user' });
      expect(client.post).toHaveBeenCalledWith('/api/v1/projects', {
        name: 'minimal',
        description: '',
      });
    });

    it('updates existing project on 409 with --force', async () => {
      vi.mocked(client.post).mockRejectedValueOnce(new ApiError(409, '{"error":"Project already exists"}'));
      vi.mocked(client.get).mockResolvedValueOnce([{ id: 'proj-1', name: 'my-proj' }] as never);
      const cmd = createCreateCommand({ client, log });
      await cmd.parseAsync(['project', 'my-proj', '-d', 'updated', '--force'], { from: 'user' });
      expect(client.put).toHaveBeenCalledWith('/api/v1/projects/proj-1', { description: 'updated' });
      expect(output.join('\n')).toContain("project 'my-proj' updated");
    });
  });
});