=begin
#Timeline

#This feature allows an app to create and configure custom events that can show up in the timelines of certain CRM objects like contacts, companies, tickets, or deals. You'll find multiple use cases for this API in the sections below.

The version of the OpenAPI document: v3

Generated by: https://openapi-generator.tech
OpenAPI Generator version: 6.2.1

=end

require 'date'
require 'json'
require 'logger'
require 'tempfile'
require 'time'
require 'typhoeus'

module Hubspot
  module Crm
    module Timeline
      class ApiClient
        # The Configuration object holding settings to be used in the API client.
        attr_accessor :config

        # Defines the headers to be used in HTTP requests of all API calls by default.
        #
        # @return [Hash]
        attr_accessor :default_headers

        # Initializes the ApiClient
        # @option config [Configuration] Configuration for initializing the object, default to Configuration.default
        def initialize(config = Configuration.default)
          @config = config
          @user_agent = "hubspot-api-client-ruby; #{VERSION}"
          @default_headers = {
            'Content-Type' => 'application/json',
            'User-Agent' => @user_agent
          }
        end

        def self.default
          @@default ||= ApiClient.new
        end

        # Call an API with given options.
        #
        # @return [Array<(Object, Integer, Hash)>] an array of 3 elements:
        #   the data deserialized from response body (could be nil), response status code and response headers.
        def call_api(http_method, path, opts = {})
          request = build_request(http_method, path, opts)
          response = request.run

          if @config.debugging
            @config.logger.debug "HTTP response body ~BEGIN~\n#{response.body}\n~END~\n"
          end

          if !response.success? && config.error_handler.any?
            config.error_handler.each do |statuses, opts|
              statuses = statuses.is_a?(Integer) ? [statuses] : statuses

              retries = opts[:max_retries] || 5
              while retries > 0 && statuses.include?(response.code)
                sleep opts[:seconds_delay] if opts[:seconds_delay]
                response = request.run
                opts[:retry_block].call if opts[:retry_block]
                retries -= 1
              end
            end
          end

          unless response.success?
            if response.timed_out?
              fail ApiError.new('Connection timed out')
            elsif response.code == 0
              # Errors from libcurl will be made visible here
              fail ApiError.new(:code => 0,
                                :message => response.return_message)
            else
              fail ApiError.new(:code => response.code,
                                :response_headers => response.headers,
                                :response_body => response.body),
                   response.status_message
            end
          end

          if opts[:return_type]
            data = deserialize(response, opts[:return_type])
          else
            data = nil
          end
          return data, response.code, response.headers
        end

        # Builds the HTTP request
        #
        # @param [String] http_method HTTP method/verb (e.g. POST)
        # @param [String] path URL path (e.g. /account/new)
        # @option opts [Hash] :header_params Header parameters
        # @option opts [Hash] :query_params Query parameters
        # @option opts [Hash] :form_params Query parameters
        # @option opts [Object] :body HTTP body (JSON/XML)
        # @return [Typhoeus::Request] A Typhoeus Request
        def build_request(http_method, path, opts = {})
          url = build_request_url(path, opts)
          http_method = http_method.to_sym.downcase

          header_params = @default_headers.merge(opts[:header_params] || {})
          query_params = opts[:query_params] || {}
          form_params = opts[:form_params] || {}
          follow_location = opts[:follow_location] || true

          update_params_for_auth! header_params, query_params, opts[:auth_names]

          # set ssl_verifyhosts option based on @config.verify_ssl_host (true/false)
          _verify_ssl_host = @config.verify_ssl_host ? 2 : 0

          req_opts = {
            :method => http_method,
            :headers => header_params,
            :params => query_params,
            :params_encoding => @config.params_encoding,
            :timeout => @config.timeout,
            :ssl_verifypeer => @config.verify_ssl,
            :ssl_verifyhost => _verify_ssl_host,
            :sslcert => @config.cert_file,
            :sslkey => @config.key_file,
            :verbose => @config.debugging,
            :followlocation => follow_location
          }

          # set custom cert, if provided
          req_opts[:cainfo] = @config.ssl_ca_cert if @config.ssl_ca_cert

          if [:post, :patch, :put, :delete].include?(http_method)
            req_body = build_request_body(header_params, form_params, opts[:body])
            req_opts.update :body => req_body
            if @config.debugging
              @config.logger.debug "HTTP request body param ~BEGIN~\n#{req_body}\n~END~\n"
            end
          end

          request = Typhoeus::Request.new(url, req_opts)
          download_file(request) if opts[:return_type] == 'File'
          request
        end

        # Builds the HTTP request body
        #
        # @param [Hash] header_params Header parameters
        # @param [Hash] form_params Query parameters
        # @param [Object] body HTTP body (JSON/XML)
        # @return [String] HTTP body data in the form of string
        def build_request_body(header_params, form_params, body)
          # http form
          if header_params['Content-Type'] == 'application/x-www-form-urlencoded' ||
              header_params['Content-Type'] == 'multipart/form-data'
            data = {}
            form_params.each do |key, value|
              case value
              when ::File, ::Array, nil
                # let typhoeus handle File, Array and nil parameters
                data[key] = value
              else
                data[key] = value.to_s
              end
            end
          elsif body
            data = body.is_a?(String) ? body : body.to_json
          else
            data = nil
          end
          data
        end

        # Save response body into a file in (the defined) temporary folder, using the filename
        # from the "Content-Disposition" header if provided, otherwise a random filename.
        # The response body is written to the file in chunks in order to handle files which
        # size is larger than maximum Ruby String or even larger than the maximum memory a Ruby
        # process can use.
        #
        # @see Configuration#temp_folder_path
        def download_file(request)
          tempfile = nil
          encoding = nil
          request.on_headers do |response|
            content_disposition = response.headers['Content-Disposition']
            if content_disposition && content_disposition =~ /filename=/i
              filename = content_disposition[/filename=['"]?([^'"\s]+)['"]?/, 1]
              prefix = sanitize_filename(filename)
            else
              prefix = 'download-'
            end
            prefix = prefix + '-' unless prefix.end_with?('-')
            encoding = response.body.encoding
            tempfile = Tempfile.open(prefix, @config.temp_folder_path, encoding: encoding)
            @tempfile = tempfile
          end
          request.on_body do |chunk|
            chunk.force_encoding(encoding)
            tempfile.write(chunk)
          end
          request.on_complete do |response|
            if tempfile
              tempfile.close
              @config.logger.info "Temp file written to #{tempfile.path}, please copy the file to a proper folder "\
                                  "with e.g. `FileUtils.cp(tempfile.path, '/new/file/path')` otherwise the temp file "\
                                  "will be deleted automatically with GC. It's also recommended to delete the temp file "\
                                  "explicitly with `tempfile.delete`"
            end
          end
        end

        # Check if the given MIME is a JSON MIME.
        # JSON MIME examples:
        #   application/json
        #   application/json; charset=UTF8
        #   APPLICATION/JSON
        #   */*
        # @param [String] mime MIME
        # @return [Boolean] True if the MIME is application/json
        def json_mime?(mime)
          (mime == '*/*') || !(mime =~ /Application\/.*json(?!p)(;.*)?/i).nil?
        end

        # Deserialize the response to the given return type.
        #
        # @param [Response] response HTTP response
        # @param [String] return_type some examples: "User", "Array<User>", "Hash<String, Integer>"
        def deserialize(response, return_type)
          body = response.body

          # handle file downloading - return the File instance processed in request callbacks
          # note that response body is empty when the file is written in chunks in request on_body callback
          return @tempfile if return_type == 'File'

          return nil if body.nil? || body.empty?

          # return response body directly for String return type
          return body if return_type == 'String'

          # ensuring a default content type
          content_type = response.headers['Content-Type'] || 'application/json'

          fail "Content-Type is not supported: #{content_type}" unless json_mime?(content_type)

          begin
            data = JSON.parse("[#{body}]", :symbolize_names => true)[0]
          rescue JSON::ParserError => e
            if %w(String Date Time).include?(return_type)
              data = body
            else
              raise e
            end
          end

          convert_to_type data, return_type
        end

        # Convert data to the given return type.
        # @param [Object] data Data to be converted
        # @param [String] return_type Return type
        # @return [Mixed] Data in a particular type
        def convert_to_type(data, return_type)
          return nil if data.nil?
          case return_type
          when 'String'
            data.to_s
          when 'Integer'
            data.to_i
          when 'Float'
            data.to_f
          when 'Boolean'
            data == true
          when 'Time'
            # parse date time (expecting ISO 8601 format)
            Time.parse data
          when 'Date'
            # parse date time (expecting ISO 8601 format)
            Date.parse data
          when 'Object'
            # generic object (usually a Hash), return directly
            data
          when /\AArray<(.+)>\z/
            # e.g. Array<Pet>
            sub_type = $1
            data.map { |item| convert_to_type(item, sub_type) }
          when /\AHash\<String, (.+)\>\z/
            # e.g. Hash<String, Integer>
            sub_type = $1
            {}.tap do |hash|
              data.each { |k, v| hash[k] = convert_to_type(v, sub_type) }
            end
          else
            # models (e.g. Pet) or oneOf
            klass = Hubspot::Crm::Timeline.const_get(return_type)
            klass.respond_to?(:openapi_one_of) ? klass.build(data) : klass.build_from_hash(data)
          end
        end

        # Sanitize filename by removing path.
        # e.g. ../../sun.gif becomes sun.gif
        #
        # @param [String] filename the filename to be sanitized
        # @return [String] the sanitized filename
        def sanitize_filename(filename)
          filename.gsub(/.*[\/\\]/, '')
        end

        def build_request_url(path, opts = {})
          # Add leading and trailing slashes to path
          path = "/#{path}".gsub(/\/+/, '/')
          @config.base_url(opts[:operation]) + path
        end

        # Update header and query params based on authentication settings.
        #
        # @param [Hash] header_params Header parameters
        # @param [Hash] query_params Query parameters
        # @param [String] auth_names Authentication scheme name
        def update_params_for_auth!(header_params, query_params, auth_names)
          Array(auth_names).each do |auth_name|
            auth_setting = @config.auth_settings[auth_name]
            next unless auth_setting
            case auth_setting[:in]
            when 'header' then header_params[auth_setting[:key]] = auth_setting[:value]
            when 'query'  then query_params[auth_setting[:key]] = auth_setting[:value]
            else fail ArgumentError, 'Authentication token must be in `query` or `header`'
            end
          end
        end

        # Sets user agent in HTTP header
        #
        # @param [String] user_agent User agent (e.g. openapi-generator/ruby/1.0.0)
        def user_agent=(user_agent)
          @user_agent = user_agent
          @default_headers['User-Agent'] = @user_agent
        end

        # Return Accept header based on an array of accepts provided.
        # @param [Array] accepts array for Accept
        # @return [String] the Accept header (e.g. application/json)
        def select_header_accept(accepts)
          return nil if accepts.nil? || accepts.empty?
          # use JSON when present, otherwise use all of the provided
          json_accept = accepts.find { |s| json_mime?(s) }
          json_accept || accepts.join(',')
        end

        # Return Content-Type header based on an array of content types provided.
        # @param [Array] content_types array for Content-Type
        # @return [String] the Content-Type header  (e.g. application/json)
        def select_header_content_type(content_types)
          # return nil by default
          return if content_types.nil? || content_types.empty?
          # use JSON when present, otherwise use the first one
          json_content_type = content_types.find { |s| json_mime?(s) }
          json_content_type || content_types.first
        end

        # Convert object (array, hash, object, etc) to JSON string.
        # @param [Object] model object to be converted into JSON string
        # @return [String] JSON string representation of the object
        def object_to_http_body(model)
          return model if model.nil? || model.is_a?(String)
          local_body = nil
          if model.is_a?(Array)
            local_body = model.map { |m| object_to_hash(m) }
          else
            local_body = object_to_hash(model)
          end
          local_body.to_json
        end

        # Convert object(non-array) to hash.
        # @param [Object] obj object to be converted into JSON string
        # @return [String] JSON string representation of the object
        def object_to_hash(obj)
          if obj.respond_to?(:to_hash)
            obj.to_hash
          else
            obj
          end
        end

        # Build parameter value according to the given collection format.
        # @param [String] collection_format one of :csv, :ssv, :tsv, :pipes and :multi
        def build_collection_param(param, collection_format)
          case collection_format
          when :csv
            param.join(',')
          when :ssv
            param.join(' ')
          when :tsv
            param.join("\t")
          when :pipes
            param.join('|')
          when :multi
            # return the array directly as typhoeus will handle it as expected
            param
          else
            fail "unknown collection format: #{collection_format.inspect}"
          end
        end
      end
    end
  end
end
