import { beforeEach, describe, expect, it, vi } from 'vitest'
import { getProxyConfig } from './util'

// Mock console.log and console.error to avoid noise in tests
const mockConsole = {
  log: vi.fn(),
  error: vi.fn(),
}

// Set up mocks
beforeEach(() => {
  // Clear all mocks
  vi.clearAllMocks()

  // Clear localStorage mocks
  vi.mocked(localStorage.getItem).mockClear()

  // Mock console
  Object.defineProperty(console, 'log', {
    value: mockConsole.log,
    writable: true,
  })
  Object.defineProperty(console, 'error', {
    value: mockConsole.error,
    writable: true,
  })
})

describe('getProxyConfig', () => {
  it('should return null when no proxy configuration is stored', () => {
    vi.mocked(localStorage.getItem).mockReturnValue(null)

    const result = getProxyConfig()

    expect(result).toBeNull()
    expect(localStorage.getItem).toHaveBeenCalledWith('setting-proxy-config')
  })

  it('should return null when proxy is disabled', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: false,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: 'user',
        proxyPassword: 'pass',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: 'localhost,127.0.0.1',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toBeNull()
  })

  it('should return null when proxy is enabled but no URL is provided', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: '',
        proxyUsername: 'user',
        proxyPassword: 'pass',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toBeNull()
  })

  it('should return basic proxy configuration with SSL settings', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'https://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: '',
        proxyIgnoreSSL: true,
        verifyProxySSL: false,
        verifyProxyHostSSL: false,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'https://proxy.example.com:8080',
      ignore_ssl: true,
      verify_proxy_ssl: false,
      verify_proxy_host_ssl: false,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })

  it('should include authentication when both username and password are provided', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: 'testuser',
        proxyPassword: 'testpass',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'http://proxy.example.com:8080',
      username: 'testuser',
      password: 'testpass',
      ignore_ssl: false,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })

  it('should not include authentication when only username is provided', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: 'testuser',
        proxyPassword: '',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'http://proxy.example.com:8080',
      ignore_ssl: false,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
    expect(result?.username).toBeUndefined()
    expect(result?.password).toBeUndefined()
  })

  it('should not include authentication when only password is provided', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: 'testpass',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'http://proxy.example.com:8080',
      ignore_ssl: false,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
    expect(result?.username).toBeUndefined()
    expect(result?.password).toBeUndefined()
  })

  it('should parse no_proxy list correctly', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: '',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: 'localhost, 127.0.0.1, *.example.com , specific.domain.com',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'http://proxy.example.com:8080',
      no_proxy: [
        'localhost',
        '127.0.0.1',
        '*.example.com',
        'specific.domain.com',
      ],
      ignore_ssl: false,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })

  it('should handle empty no_proxy entries', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: '',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: 'localhost, , 127.0.0.1, ,',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'http://proxy.example.com:8080',
      no_proxy: ['localhost', '127.0.0.1'],
      ignore_ssl: false,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })

  it('should handle mixed SSL verification settings', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'https://proxy.example.com:8080',
        proxyUsername: 'user',
        proxyPassword: 'pass',
        proxyIgnoreSSL: true,
        verifyProxySSL: false,
        verifyProxyHostSSL: true,
        verifyPeerSSL: false,
        verifyHostSSL: true,
        noProxy: 'localhost',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'https://proxy.example.com:8080',
      username: 'user',
      password: 'pass',
      no_proxy: ['localhost'],
      ignore_ssl: true,
      verify_proxy_ssl: false,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: false,
      verify_host_ssl: true,
    })
  })

  it('should handle all SSL verification settings as false', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: '',
        proxyIgnoreSSL: false,
        verifyProxySSL: false,
        verifyProxyHostSSL: false,
        verifyPeerSSL: false,
        verifyHostSSL: false,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'http://proxy.example.com:8080',
      ignore_ssl: false,
      verify_proxy_ssl: false,
      verify_proxy_host_ssl: false,
      verify_peer_ssl: false,
      verify_host_ssl: false,
    })
  })

  it('should handle all SSL verification settings as true', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'https://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: '',
        proxyIgnoreSSL: true,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'https://proxy.example.com:8080',
      ignore_ssl: true,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })

  it('should log proxy configuration details', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'https://proxy.example.com:8080',
        proxyUsername: 'testuser',
        proxyPassword: 'testpass',
        proxyIgnoreSSL: true,
        verifyProxySSL: false,
        verifyProxyHostSSL: true,
        verifyPeerSSL: false,
        verifyHostSSL: true,
        noProxy: 'localhost,127.0.0.1',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    getProxyConfig()

    expect(mockConsole.log).toHaveBeenCalledWith('Using proxy configuration:', {
      url: 'https://proxy.example.com:8080',
      hasAuth: true,
      noProxyCount: 2,
      ignoreSSL: true,
      verifyProxySSL: false,
      verifyProxyHostSSL: true,
      verifyPeerSSL: false,
      verifyHostSSL: true,
    })
  })

  it('should log proxy configuration without authentication', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'http://proxy.example.com:8080',
        proxyUsername: '',
        proxyPassword: '',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    getProxyConfig()

    expect(mockConsole.log).toHaveBeenCalledWith('Using proxy configuration:', {
      url: 'http://proxy.example.com:8080',
      hasAuth: false,
      noProxyCount: 0,
      ignoreSSL: false,
      verifyProxySSL: true,
      verifyProxyHostSSL: true,
      verifyPeerSSL: true,
      verifyHostSSL: true,
    })
  })

  it('should return null and log error when JSON parsing fails', () => {
    vi.mocked(localStorage.getItem).mockReturnValue('invalid-json')

    const result = getProxyConfig()

    expect(result).toBeNull()
    expect(mockConsole.error).toHaveBeenCalledWith(
      'Failed to parse proxy configuration:',
      expect.any(SyntaxError)
    )
  })

  it('should handle SOCKS proxy URLs', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'socks5://proxy.example.com:1080',
        proxyUsername: 'user',
        proxyPassword: 'pass',
        proxyIgnoreSSL: false,
        verifyProxySSL: true,
        verifyProxyHostSSL: true,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: '',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'socks5://proxy.example.com:1080',
      username: 'user',
      password: 'pass',
      ignore_ssl: false,
      verify_proxy_ssl: true,
      verify_proxy_host_ssl: true,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })

  it('should handle comprehensive proxy configuration', () => {
    const proxyConfig = {
      state: {
        proxyEnabled: true,
        proxyUrl: 'https://secure-proxy.example.com:8443',
        proxyUsername: 'admin',
        proxyPassword: 'secretpass',
        proxyIgnoreSSL: true,
        verifyProxySSL: false,
        verifyProxyHostSSL: false,
        verifyPeerSSL: true,
        verifyHostSSL: true,
        noProxy: 'localhost,127.0.0.1,*.local,192.168.1.0/24',
      },
      version: 0,
    }

    vi.mocked(localStorage.getItem).mockReturnValue(JSON.stringify(proxyConfig))

    const result = getProxyConfig()

    expect(result).toEqual({
      url: 'https://secure-proxy.example.com:8443',
      username: 'admin',
      password: 'secretpass',
      no_proxy: ['localhost', '127.0.0.1', '*.local', '192.168.1.0/24'],
      ignore_ssl: true,
      verify_proxy_ssl: false,
      verify_proxy_host_ssl: false,
      verify_peer_ssl: true,
      verify_host_ssl: true,
    })
  })
})