require './test/test_helper'
require 'ruby_http_client'
require 'minitest/autorun'

class MockResponse
  attr_reader :status_code, :body, :headers

  def initialize(response)
    @status_code = response['code']
    @body = response['body']
    @headers = response['headers']
  end
end

class MockHttpResponse
  attr_reader :code, :body, :headers

  def initialize(code, body, headers)
    @code = code
    @body = body
    @headers = headers
  end

  alias to_hash headers
end

class MockResponseWithRequestBody < MockResponse
  attr_reader :request_body

  def initialize(response)
    @request_body = response['request_body']
  end
end

class MockRequest < SendGrid::Client
  def make_request(_http, _request)
    response = {}
    response['code'] = 200
    response['body'] = { 'message' => 'success' }
    response['headers'] = { 'headers' => 'test' }
    MockResponse.new(response)
  end
end

class MockRequestWithRequestBody < SendGrid::Client
  def make_request(_http, request)
    response = {}
    response['code'] = 200
    response['body'] = { 'message' => 'success' }
    response['headers'] = { 'headers' => 'test' }
    response['request_body'] = request.body
    MockResponseWithRequestBody.new(response)
  end
end

class TestClient < Minitest::Test
  def setup
    @headers = JSON.parse('
            {
                "Authorization": "Bearer XXXXXXX",
                "Content-Type": "application/json"
            }
        ')
    @host = 'http://localhost:4010'
    @version = 'v3'
    @http_options = { open_timeout: 60, read_timeout: 60 }
    @client = MockRequest.new(host: @host,
                              request_headers: @headers,
                              version: @version)
    @client_with_options = MockRequest.new(host: @host,
                                           request_headers: @headers,
                                           version: @version,
                                           http_options: @http_options)
  end

  def test_init
    assert_equal(@host, @client.host)
    assert_equal(@headers, @client.request_headers)
  end

  def test_update_headers
    request_headers = { 'X-Test' => 'test' }
    @client.update_headers(request_headers)
    assert_equal(@headers.merge(request_headers), @client.request_headers)
  end

  def test_build_request_headers
    request = {}
    request = @client.build_request_headers(request)
    assert_equal(request, @client.request_headers)
  end

  def test_add_version
    url = ''
    @client.add_version(url)
    assert_equal("/#{@version}", url)
  end

  def test_build_query_params
    url = ''
    query_params = { 'limit' => 100, 'offset' => 0, 'categories' => %w[category1 category2] }
    url = @client.build_query_params(url, query_params)
    assert_equal('?limit=100&offset=0&categories=category1&categories=category2', url)
  end

  def test_build_url
    url1 = @client.my.path.to.the.endpoint
    params = { 'limit' => 100, 'offset' => 0 }
    url = URI.parse(@host + '/' + @version +
                    '/my/path/to/the/endpoint?limit=100&offset=0')
    assert_equal(url, url1.build_url(query_params: params))

    url1 = url1.one_more
    params = { 'limit' => 100, 'offset' => 0 }
    url = URI.parse(@host + '/' + @version +
                    '/my/path/to/the/endpoint/one_more?limit=100&offset=0')
    assert_equal(url, url1.build_url(query_params: params))

    url2 = @client.my.path._('to').the.endpoint
    params = { 'limit' => 100, 'offset' => 0 }
    url = URI.parse(@host + '/' + @version +
                    '/my/path/to/the/endpoint?limit=100&offset=0')
    assert_equal(url, url2.build_url(query_params: params))
  end

  def test_build_request
    name = 'get'
    args = nil
    response = @client.build_request(name, args)
    assert_equal(200, response.status_code)
    assert_equal({ 'message' => 'success' }, response.body)
    assert_equal({ 'headers' => 'test' }, response.headers)
  end

  def test_build_request_post_empty_content_type
    headers = {
    }
    client = MockRequest.new(
      host: 'https://localhost',
      request_headers: headers,
      version: 'v3'
    )
    args = [{ 'request_body' => { 'hogekey' => 'hogevalue' } }]
    client.build_request('post', args)
    assert_equal('application/json', client.request['Content-Type'])
    assert_equal('{"hogekey":"hogevalue"}', client.request.body)
  end

  def test_build_request_get_application_json
    headers = {
      'Content-Type' => 'application/json'
    }
    client = MockRequest.new(
      host: 'https://localhost',
      request_headers: headers,
      version: 'v3'
    )
    client.build_request('get', nil)
    assert_equal('application/json', client.request['Content-Type'])
    assert_nil(client.request.body)
  end

  def test_build_request_post_empty_body
    headers = {
      'Content-Type' => 'application/json'
    }
    client = MockRequest.new(
      host: 'https://localhost',
      request_headers: headers,
      version: 'v3'
    )
    client.build_request('post', nil)
    assert_equal('', client.request['Content-Type'])
    assert_nil(client.request.body)
  end

  def test_build_request_post_multipart
    headers = {
      'Content-Type' => 'multipart/form-data; boundary=xYzZY'
    }
    client = MockRequest.new(
      host: 'https://localhost',
      request_headers: headers
    )
    name = 'post'
    args = [{ 'request_body' => 'hogebody' }]
    client.build_request(name, args)
    assert_equal('multipart/form-data; boundary=xYzZY', client.request['Content-Type'])
    assert_equal('hogebody', client.request.body)
  end

  def test_json_body_encode_hash
    headers = {
      'Content-Type' => 'application/json'
    }
    client = MockRequestWithRequestBody.new(
      host: 'https://localhost',
      request_headers: headers
    )
    name = 'post'
    args = [{ 'request_body' => { 'this_is' => 'json' } }]
    response = client.build_request(name, args)
    assert_equal('{"this_is":"json"}', response.request_body)
  end

  def test_json_body_encode_array
    headers = {
      'Content-Type' => 'application/json'
    }
    client = MockRequestWithRequestBody.new(
      host: 'https://localhost',
      request_headers: headers
    )
    name = 'post'
    args = [{ 'request_body' => [{ 'this_is' => 'json' }] }]
    response = client.build_request(name, args)
    assert_equal('[{"this_is":"json"}]', response.request_body)
  end

  def test_json_body_do_not_reencode
    headers = {
      'Content-Type' => 'application/json'
    }
    client = MockRequestWithRequestBody.new(
      host: 'https://localhost',
      request_headers: headers
    )
    name = 'post'
    args = [{ 'request_body' => '{"this_is":"json"}' }]
    response = client.build_request(name, args)
    assert_equal('{"this_is":"json"}', response.request_body)
  end

  def test_json_body_do_not_reencode_simplejson
    headers = {
      'Content-Type' => 'application/json'
    }
    client = MockRequestWithRequestBody.new(
      host: 'https://localhost',
      request_headers: headers
    )
    name = 'post'
    args = [{ 'request_body' => 'true' }]
    response = client.build_request(name, args)
    assert_equal('true', response.request_body)
  end

  def add_ssl
    uri = URI.parse('https://localhost:4010')
    http = Net::HTTP.new(uri.host, uri.port)
    http = @client.add_ssl(http)
    assert_equal(http.use_ssl, true)
    assert_equal(http.verify_mode, OpenSSL::SSL::VERIFY_PEER)
  end

  def test_add_http_options
    uri = URI.parse('https://localhost:4010')
    http = Net::HTTP.new(uri.host, uri.port)
    http = @client_with_options.add_http_options(http)
    assert_equal(http.open_timeout, 60)
    assert_equal(http.read_timeout, 60)
  end

  def test__
    url1 = @client._('test')
    assert_equal(['test'], url1.url_path)
  end

  def test_ratelimit_core
    expiry = Time.now.to_i + 1
    rl = SendGrid::Response::Ratelimit.new(500, 100, expiry)
    rl2 = SendGrid::Response::Ratelimit.new(500, 0, expiry)

    refute rl.exceeded?
    assert rl2.exceeded?

    assert_equal(rl.used, 400)
    assert_equal(rl2.used, 500)
  end

  def test_response_ratelimit_parsing
    headers = {
      'X-RateLimit-Limit' => '500',
      'X-RateLimit-Remaining' => '300',
      'X-RateLimit-Reset' => Time.now.to_i.to_s
    }

    body = ''
    code = 204
    http_response = MockHttpResponse.new(code, body, headers)
    response = SendGrid::Response.new(http_response)

    refute_nil response.ratelimit
    refute response.ratelimit.exceeded?
  end

  def test_method_missing
    response = @client.get
    assert_equal(200, response.status_code)
    assert_equal({ 'message' => 'success' }, response.body)
    assert_equal({ 'headers' => 'test' }, response.headers)
  end

  def test_http_options
    url1 = @client_with_options._('test')
    assert_equal(@host, @client_with_options.host)
    assert_equal(@headers, @client_with_options.request_headers)
    assert_equal(['test'], url1.url_path)
  end

  def test_proxy_options
    proxy_options = {
      host: '127.0.0.1', port: 8080, user: 'anonymous', pass: 'secret'
    }
    client = MockRequest.new(
      host: 'https://api.sendgrid.com',
      request_headers: { 'Authorization' => 'Bearer xxx' },
      proxy_options: proxy_options
    ).version('v3').api_keys

    assert(client.proxy_address, '127.0.0.1')
    assert(client.proxy_pass, 'secret')
    assert(client.proxy_port, 8080)
    assert(client.proxy_user, 'anonymous')
  end

  def test_proxy_from_http_proxy_environment_variable
    ENV['http_proxy'] = 'anonymous:secret@127.0.0.1:8080'

    client = MockRequest.new(
      host: 'https://api.sendgrid.com',
      request_headers: { 'Authorization' => 'Bearer xxx' }
    ).version('v3').api_keys

    assert(client.proxy_address, '127.0.0.1')
    assert(client.proxy_pass, 'secret')
    assert(client.proxy_port, 8080)
    assert(client.proxy_user, 'anonymous')
  ensure
    ENV.delete('http_proxy')
  end

  # def test_docker_exists
  #   assert(File.file?('./Dockerfile') || File.file?('./docker/Dockerfile'))
  # end

  # def test_docker_compose_exists
  #   assert(File.file?('./docker-compose.yml') || File.file?('./docker/docker-compose.yml'))
  # end

  def test_env_sample_exists
    assert(File.file?('./.env_sample'))
  end

  def test_gitignore_exists
    assert(File.file?('./.gitignore'))
  end

  def test_gh_actions_exists
    assert(File.file?('./.github/workflows/test-and-deploy.yml'))
  end

  def test_changelog_exists
    assert(File.file?('./CHANGELOG.md'))
  end

  def test_code_of_conduct_exists
    assert(File.file?('./CODE_OF_CONDUCT.md'))
  end

  def test_contributing_exists
    assert(File.file?('./CONTRIBUTING.md'))
  end

  def test_issue_template_exists
    assert(File.file?('./ISSUE_TEMPLATE.md'))
  end

  def test_license_exists
    assert(File.file?('./LICENSE'))
  end

  def test_pull_request_template_exists
    assert(File.file?('./PULL_REQUEST_TEMPLATE.md'))
  end

  def test_readme_exists
    assert(File.file?('./README.md'))
  end

  def test_troubleshooting_exists
    assert(File.file?('./TROUBLESHOOTING.md'))
  end

  def test_use_cases_exists
    assert(File.file?('use_cases/README.md'))
  end

  def test_license_date_is_updated
    license_end_year = IO.read('LICENSE').match(/Copyright \(C\) (\d{4}), Twilio SendGrid/)[1].to_i
    current_year = Time.new.year
    assert_equal(current_year, license_end_year)
  end
end