/**
 * Contract test for IUniversalHttpClient.request()
 *
 * This test validates the core HTTP request functionality of the Universal HTTP Client
 * according to the contract specification. Tests MUST FAIL until implementation is complete.
 */

import { describe, test, expect, beforeEach, jest } from '@jest/globals'

// Import types that will be implemented
import type { IUniversalHttpClient, HttpClientRequest, HttpClientResponse } from '@/types/httpClientCore'

describe('IUniversalHttpClient.request() Contract', () => {
  let httpClient: IUniversalHttpClient

  beforeEach(() => {
    // This will fail until IUniversalHttpClient is implemented
    // eslint-disable-next-line @typescript-eslint/no-require-imports
    const { HttpClientCore } = require('@/core/http-client/HttpClientCore')
    httpClient = new HttpClientCore()
  })

  describe('Basic Request Functionality', () => {
    test('should accept valid HttpClientRequest and return HttpClientResponse', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/v1/account/info',
        headers: {
          'Content-Type': 'application/json'
        }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.status).toBeGreaterThanOrEqual(200)
      expect(response.status).toBeLessThan(600)
      expect(response.ok).toBe(response.status >= 200 && response.status < 300)
      expect(response.data).toBeDefined()
      expect(response.headers).toBeDefined()
      expect(response.metadata).toBeDefined()
      expect(response.metadata.requestId).toBeDefined()
      expect(response.metadata.duration).toBeGreaterThan(0)
      expect(response.metadata.platform).toBe('pacifica')
      expect(response.metadata.accountId).toBe('test-account')
    })

    test('should handle POST request with body', async () => {
      const request: HttpClientRequest = {
        platform: 'binance',
        accountId: 'test-account',
        method: 'POST',
        url: '/api/v3/order',
        headers: {
          'Content-Type': 'application/json'
        },
        body: {
          symbol: 'BTCUSDT',
          side: 'BUY',
          type: 'LIMIT',
          quantity: '0.001',
          price: '50000'
        }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.metadata.platform).toBe('binance')
      expect(response.metadata.accountId).toBe('test-account')
    })

    test('should handle request with custom timeout options', async () => {
      const request: HttpClientRequest = {
        platform: 'aster',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/balances',
        options: {
          timeout: {
            connect: 5000,
            read: 30000,
            write: 15000
          }
        }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.metadata.platform).toBe('aster')
      expect(response.metadata.timeout).toBeDefined()
    })

    test('should handle request with retry configuration', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/v1/markets',
        options: {
          retry: {
            maxAttempts: 3,
            delay: 1000,
            exponentialBackoff: true
          }
        }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.metadata.retryCount).toBeDefined()
      expect(response.metadata.retryCount).toBeGreaterThanOrEqual(0)
    })

    test('should handle request with proxy configuration', async () => {
      const request: HttpClientRequest = {
        platform: 'binance',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/v3/exchangeInfo',
        options: {
          proxy: {
            enabled: true,
            strategy: 'global'
          }
        }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.metadata.usedProxy).toBeDefined()
    })
  })

  describe('Error Handling', () => {
    test('should throw error for invalid platform', async () => {
      const request: HttpClientRequest = {
        platform: 'invalid-platform',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/test'
      }

      await expect(httpClient.request(request)).rejects.toThrow()
    })

    test('should throw error for empty platform', async () => {
      const request: HttpClientRequest = {
        platform: '',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/test'
      }

      await expect(httpClient.request(request)).rejects.toThrow()
    })

    test('should throw error for empty accountId', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: '',
        method: 'GET',
        url: '/api/test'
      }

      await expect(httpClient.request(request)).rejects.toThrow()
    })

    test('should throw error for invalid URL', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: 'test-account',
        method: 'GET',
        url: ''
      }

      await expect(httpClient.request(request)).rejects.toThrow()
    })
  })

  describe('Performance Requirements', () => {
    test('should complete request within 100ms for simple GET', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/v1/ping'
      }

      const startTime = Date.now()
      const response = await httpClient.request(request)
      const duration = Date.now() - startTime

      expect(response).toBeDefined()
      expect(duration).toBeLessThan(100)
      expect(response.metadata.duration).toBeLessThan(100)
    })

    test('should handle concurrent requests without blocking', async () => {
      const requests: HttpClientRequest[] = Array.from({ length: 10 }, (_, i) => ({
        platform: 'pacifica',
        accountId: `test-account-${i}`,
        method: 'GET',
        url: '/api/v1/ping'
      }))

      const startTime = Date.now()
      const responses = await Promise.all(
        requests.map(request => httpClient.request(request))
      )
      const totalDuration = Date.now() - startTime

      expect(responses).toHaveLength(10)
      responses.forEach(response => {
        expect(response).toBeDefined()
        expect(response.ok).toBe(true)
      })
      // Total time should be much less than 10 * 100ms if truly concurrent
      expect(totalDuration).toBeLessThan(500)
    })
  })

  describe('Platform Integration', () => {
    test('should integrate with credential-manager for authentication', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: 'test-account',
        method: 'POST',
        url: '/api/v1/orders',
        body: { test: 'data' }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.metadata.authenticated).toBe(true)
      expect(response.metadata.signatureAlgorithm).toBeDefined()
    })

    test('should handle platform-specific headers and formatting', async () => {
      const request: HttpClientRequest = {
        platform: 'binance',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/v3/account',
        headers: {
          'X-MBX-APIKEY': 'test-key'
        }
      }

      const response = await httpClient.request(request)

      expect(response).toBeDefined()
      expect(response.metadata.platform).toBe('binance')
      expect(response.headers.get('X-MBX-APIKEY')).toBeDefined()
    })
  })

  describe('Logging and Observability', () => {
    test('should provide detailed metadata for request tracking', async () => {
      const request: HttpClientRequest = {
        platform: 'aster',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/balances',
        options: {
          logSensitiveData: true,
          idempotencyKey: 'test-idempotency-key'
        }
      }

      const response = await httpClient.request(request)

      expect(response.metadata).toBeDefined()
      expect(response.metadata.requestId).toBeDefined()
      expect(response.metadata.duration).toBeGreaterThan(0)
      expect(response.metadata.timestamp).toBeInstanceOf(Date)
      expect(response.metadata.platform).toBe('aster')
      expect(response.metadata.accountId).toBe('test-account')
      expect(response.metadata.idempotencyKey).toBe('test-idempotency-key')
      expect(response.metadata.networkLatency).toBeDefined()
      expect(response.metadata.processingTime).toBeDefined()
    })

    test('should track performance metrics', async () => {
      const request: HttpClientRequest = {
        platform: 'pacifica',
        accountId: 'test-account',
        method: 'GET',
        url: '/api/v1/account/info'
      }

      const response = await httpClient.request(request)

      expect(response.metadata.responseSize).toBeGreaterThan(0)
      expect(response.metadata.cacheHit).toBeDefined()
      expect(typeof response.metadata.cacheHit).toBe('boolean')
    })
  })
})