module Hominid
  module Campaign
    
    # Get all the campaigns for this account.
    #
    # Parameters:
    # * filters (Hash)    = A hash of filters to apply to query. See the Mailchimp API documentation for more info.
    # * start   (Integer) = Control paging of results.
    # * limit   (Integer) = Number of campaigns to return. Upper limit set at 1000.
    #
    # Returns:
    # An array of campaigns.
    #
    def campaigns(filters = {}, start = 0, limit = 25)
      call("campaigns", filters, start, limit)
    end

    # Find a campaign by id
    #
    # Parameters:
    # * campaign_id (String) = The unique ID of the campaign to return.
    #
    # Returns:
    # A single campaign.
    #    
    def find_campaign_by_id(campaign_id)
      call("campaigns", {:campaign_id => campaign_id}).first
    end

    # Find a campaign by web_id
    #
    # Parameters:
    # * campaign_web_id (Integer) = The unique ID of the campaign to return.
    #
    # Returns:
    # A single campaign.
    #
    def find_campaign_by_web_id(campaign_web_id)
      call("campaigns").find {|campaign| campaign["web_id"] == campaign_web_id}
    end

    # Find a campaign by name
    #
    # Parameters:
    # * title (String) = The title of the campaign to return.
    #
    # Returns:
    # An array of campaigns.
    #
    def find_campaigns_by_title(title)
      call("campaigns", {:title => title})
    end

    # Find campaigns by list name
    #
    # Parameters:
    # * list_name (String)  = The name of the mailing list to return campaigns for.
    # * start     (Integer) = Control paging of results.
    # * limit     (Integer) = Number of campaigns to return. Upper limit set at 1000.
    #
    # Returns:
    # An array of campaigns.
    #    
    def find_campaigns_by_list_name(list_name, start = 0, limit = 25)
      call("campaigns", {:list_id => find_list_id_by_name(list_name)}, start, limit)
    end

    # Find campaigns by list id
    #
    # Parameters:
    # * list_id (String)  = The ID of the mailing list to return campaigns for.
    # * start   (Integer) = Control paging of results.
    # * limit   (Integer) = Number of campaigns to return. Upper limit set at 1000.
    #
    # Returns:
    # An array of campaigns.
    #    
    def find_campaigns_by_list_id(list_id, start = 0, limit = 25)
      call("campaigns", {:list_id => list_id}, start, limit)
    end

    # Find campaigns by type
    #
    # Parameters:
    # * type   (String)  = One of: 'regular', 'plaintext', 'absplit', 'rss', 'inspection', 'trans', 'auto'
    # * start  (Integer) = Control paging of results.
    # * limit  (Integer) = Number of campaigns to return. Upper limit set at 1000.
    #
    # Returns:
    # An array of campaigns.
    #    
    def find_campaigns_by_type(type, start = 0, limit = 25)
      call("campaigns", {:type => type}, start, limit)
    end
    
    # Create a new draft campaign to send.
    #
    # Parameters:
    # * options         (Hash)    = A hash of options for creating this campaign including:
    #   * :list_id        = (String)  The ID of the list to send this campaign to.
    #   * :subject        = (String)  The subject of the campaign.
    #   * :from_email     = (String)  The email address this campaign will come from.
    #   * :from_name      = (String)  The name that this campaign will come from.
    #   * :to_email       = (String)  The To: name recipients will see.
    #   * :template_id    = (Integer) The ID of the template to use for this campaign (optional).
    #   * :folder_id      = (Integer) The ID of the folder to file this campaign in (optional).
    #   * :tracking       = (Array)   What to track for this campaign (optional).
    #   * :title          = (String)  Internal title for this campaign (optional).
    #   * :authenticate   = (Boolean) Set to true to authenticate campaign (optional).
    #   * :analytics      = (Array)   Google analytics tags (optional).
    #   * :auto_footer    = (Boolean) Auto-generate the footer (optional)?
    #   * :inline_css     = (Boolean) Inline the CSS styles (optional)?
    #   * :generate_text  = (Boolean) Auto-generate text from HTML email (optional)?
    # * content         (Hash)    = The content for this campaign - use a struct with the following keys:
    #   * :html         (String)  = The HTML content of the campaign.
    #   * :text         (String)  = The text content of the campaign.
    #   * :url          (String)  = A URL to pull content from. This will override other content settings.
    #   * :archive      (String)  = To send a Base64 encoded archive file for Mailchimp to import all media from.
    #   * :archive_type (String)  = Only necessary for the "archive" option. Supported formats are: zip, tar.gz, tar.bz2, tar, tgz, tbz. Defaults to zip. (optional)
    # * segment_options (Hash)    = Segmentation options. See the Mailchimp API documentation for more information.
    # * type            (String)  = One of "regular", "plaintext", "absplit", "rss", "trans" or "auto".
    # * type_opts       (Hash)    = An array of options for this campaign type. See the Mailchimp API documentation for for more information.
    #
    # Returns:
    # The ID for the created campaign. (String)
    #
    def create_campaign(options = {}, content = {}, campaign_type = 'regular', segment_options = {}, type_opts = {})
      call("campaignCreate", campaign_type, options, content, segment_options, type_opts)
      # TODO: Should we return the new campaign instead of the ID returned from the API?
    end

    # List all the folders for a user account.
    #
    # Returns:
    # An array of templates for this campaign including:
    # * folder_id (Integer) = Folder Id for the given folder, this can be used in the campaigns() function to filter on.
    # * name      (String)  = Name of the given folder.
    #    
    def folders
      call("campaignFolders")
    end

    # Retrieve all templates defined for your user account.
    #
    # Returns:
    # An array of templates for this campaign including:
    # * id        (Integer) = The ID of the template.
    # * name      (String)  = The name of the template.
    # * layout    (String)  = The layout of the template - "basic", "left_column", "right_column", or "postcard".
    # * sections  (Array)   = An associative array of editable sections in the template that can accept custom HTML when sending a campaign.
    #
    def templates
      call("campaignTemplates")
    end

    # Get all email addresses that complained about a given campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer)   = Page number to start at. Defaults to 0.
    # * limit (Integer)   = Number of results to return. Defaults to 500. Upper limit is 1000.
    # * since (DateTime)  = Only return email reports since this date. Must be in YYYY-MM-DD HH:II:SS format (GMT).
    #
    # Returns:
    # An array of abuse reports for this list in the format:
    #
    def campaign_abuse_reports(campaign_id, start = 0, limit = 500, since = "2000-01-01 00:00:00") 
      call("campaignAbuseReports", campaign_id, start, limit, since)
    end
    
    # Retrieve the text presented in our app for how a campaign performed and any advice we may have for you - best
    # suited for display in customized reports pages. Note: some messages will contain HTML - clean tags as necessary.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # An array of advice on the campaign's performance including:
    # * msg   (String) = Advice message.
    # * type  (String) = One of: negative, positive, or neutral.
    #
    def advice(campaign_id)
      call("campaignAdvice", campaign_id)
    end
    
    # Attach Ecommerce Order Information to a Campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * order (Hash) = A hash of order information including:
    #   * id          (String)  = The order id
    #   * email_id    (String)  = Email id of the subscriber (mc_eid query string)
    #   * total       (Double)  = Show only campaigns with this from_name.
    #   * shipping    (String)  = The total paid for shipping fees. (optional)
    #   * tax         (String)  = The total tax paid. (optional)
    #   * store_id    (String)  = A unique id for the store sending the order in
    #   * store_name  (String)  = A readable name for the store, typicaly the hostname. (optional)
    #   * plugin_id   (String)  = The MailChimp-assigned Plugin Id. Using 1214 for the moment.
    #   * items       (Array)   = The individual line items for an order, using the following keys:
    #   * line_num       (Integer) = The line number of the item on the order. (optional)
    #   * product_id     (Integer) = Internal product id.
    #   * product_name   (String)  = The name for the product_id associated with the item.
    #   * category_id    (Integer) = Internal id for the (main) category associated with product.
    #   * category_name  (String)  = The category name for the category id.
    #   * qty            (Double)  = The quantity of items ordered.
    #   * cost           (Double)  = The cost of a single item (Ex. Not the extended cost of the line).
    #
    # Returns:
    # True if successful, error code if not.
    #
    def add_order(campaign_id, order)
      order = order.merge(:campaign_id => campaign_id)
      call("campaignEcommAddOrder", order)
    end
    alias :ecomm_add_order :add_order
    
    # Retrieve the Google Analytics data we've collected for this campaign. Note, requires Google
    # Analytics Add-on to be installed and configured.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # An array of analytics for the passed campaign including:
    # * visits            (Integer) = Number of visits.
    # * pages             (Integer) = Number of page views.
    # * new_visits        (Integer) = New visits recorded.
    # * bounces           (Integer) = Vistors who "bounced" from your site.
    # * time_on_site      (Double)  = 
    # * goal_conversions  (Integer) = Number of goals converted.
    # * goal_value        (Double)  = Value of conversion in dollars.
    # * revenue           (Double)  = Revenue generated by campaign.
    # * transactions      (Integer) = Number of transactions tracked.
    # * ecomm_conversions (Integer) = Number Ecommerce transactions tracked.
    # * goals             (Array)   = An array containing goal names and number of conversions.
    #
    def analytics(campaign_id)
      call("campaignAnalytics", campaign_id)
    end
    
    # Retrieve the full bounce messages for the given campaign. Note that this can return very large amounts
    # of data depending on how large the campaign was and how much cruft the bounce provider returned. Also,
    # messages over 30 days old are subject to being removed.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 50.
    # * since (Date)    = Pull only messages since this time - use YYYY-MM-DD format in GMT.
    #
    # Returns:
    # An array of full bounce messages for this campaign including:
    # * date    (String) = Date/time the bounce was received and processed.
    # * email   (String) = The email address that bounced.
    # * message (String) = The entire bounce message received.
    #
    def bounce_messages(campaign_id, start = 0, limit = 25, since = "2000-01-01")
      call("campaignBounceMessages", campaign_id, start, limit, since)
    end
    
    # Return the list of email addresses that clicked on a given url, and how many times they clicked.
    # Note: Requires the AIM module to be installed.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * url   (String)  = The URL of the link that was clicked on.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 15000.
    #
    # Returns:
    # An array of structs containing email addresses and click counts including:
    # * email   (String)  = Email address that opened the campaign.
    # * clicks  (Integer) = Total number of times the URL was clicked on by this email address.
    #
    def click_details(campaign_id, url, start = 0, limit = 1000)
      call("campaignClickDetailAIM", campaign_id, url, start, limit)
    end
    alias :click_detail_aim :click_details
    
    # Get an array of the urls being tracked, and their click counts for a given campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # A struct of URLs and associated statistics including:
    # * clicks (Integer) = Number of times the specific link was clicked.
    # * unique (Integer) = Number of unique people who clicked on the specific link.
    #
    def click_stats(campaign_id)
      call("campaignClickStats", campaign_id)
    end
    
    # Get the content (both html and text) for a campaign either as it would appear in the campaign archive
    # or as the raw, original content.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * for_archive (Boolean) = Controls whether we return the Archive version (true) or the Raw version (false), defaults to true.
    #
    # Returns:
    # A struct containing all content for the campaign including:
    # * html (String) = The HTML content used for the campgain with merge tags intact.
    # * text (String) = The Text content used for the campgain with merge tags intact.
    #
    def content(campaign_id, for_archive = true)
      call("campaignContent", campaign_id, for_archive)
    end
    alias :campaign_content :content
    
    # Delete a campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # True if successful, error code if not.
    #
    def delete(campaign_id)
      call("campaignDelete", campaign_id)
    end
    alias :delete_campaign :delete
    
    # Get the top 5 performing email domains for this campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # An array of email domains and their associated stats including:
    # * domain      (String)  = Domain name or special "Other" to roll-up stats past 5 domains.
    # * total_sent  (Integer) = Total Email across all domains - this will be the same in every row.
    # * emails      (Integer) = Number of emails sent to this domain.
    # * bounces     (Integer) = Number of bounces.
    # * opens       (Integer) = Number of opens.
    # * clicks      (Integer) = Number of clicks.
    # * unsubs      (Integer) = Number of unsubscribes.
    # * delivered   (Integer) = Number of deliveries.
    # * emails_pct  (Integer) = Percentage of emails that went to this domain (whole number).
    # * bounces_pct (Integer) = Percentage of bounces from this domain (whole number).
    # * opens_pct   (Integer) = Percentage of opens from this domain (whole number).
    # * clicks_pct  (Integer) = Percentage of clicks from this domain (whole number).
    # * unsubs_pct  (Integer) = Percentage of unsubs from this domain (whole number).
    #
    def email_domain_performance(campaign_id)
      call("campaignEmailDomainPerformance", campaign_id)
    end
    alias :email_performance :email_domain_performance
    
    # Given a campaign and email address, return the entire click and open history with timestamps, ordered by time.
    # Note: Requires the AIM module to be installed.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * email (String) = The email address to check OR the email "id" returned from listMemberInfo, Webhooks, and Campaigns.
    #
    # Returns:
    # An array of structs containing the actions including:
    # * action    (String)    = The action taken (open or click).
    # * timestamp (DateTime)  = Time the action occurred.
    # * url       (String)    = For clicks, the URL that was clicked.
    #
    def email_stats(campaign_id, email)
      call("campaignEmailStatsAIM", campaign_id, email)
    end
    alias :email_stats_aim :email_stats
    
    # Given a campaign and correct paging limits, return the entire click and open history with timestamps, ordered by time,
    # for every user a campaign was delivered to.
    # Note: Requires the AIM module to be installed.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 1000.
    #
    # Returns:
    # An array of structs containing actions (opens and clicks) for each email, with timestamps including:
    # * action    (String)    = The action taken (open or click).
    # * timestamp (DateTime)  = Time the action occurred.
    # * url       (String)    = For clicks, the URL that was clicked.
    #
    def email_stats_all(campaign_id, start = 0, limit = 100)
      call("campaignEmailStatsAIMAll", campaign_id, start, limit)
    end
    alias :email_stats_aim_all :email_stats_all
    
    # Get all email addresses with Hard Bounces for a given campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 15000.
    #
    # Returns:
    # An array of email addresses with Hard Bounces.
    #
    def hard_bounces(campaign_id, start = 0, limit = 1000)
      call("campaignHardBounces", campaign_id, start, limit)
    end
    
    # Retrieve the list of email addresses that did not open a given campaign.
    # Note: Requires the AIM module to be installed.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 15000.
    #
    # Returns:
    # A list of email addresses that did not open a campaign.
    #
    def not_opened(campaign_id, start = 0, limit = 1000)
      call("campaignNotOpenedAIM", campaign_id, start, limit)
    end
    alias :not_opened_aim :not_opened
    
    # Retrieve the list of email addresses that opened a given campaign with how many times they opened.
    # Note: this AIM function is free and does not actually require the AIM module to be installed.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 15000.
    #
    # Returns:
    # An array of structs containing email addresses and open counts including:
    # * email       (String)  = Email address that opened the campaign.
    # * open_count  (Integer) = Total number of times the campaign was opened by this email address.
    #
    def opened(campaign_id, start = 0, limit = 1000)
      call("campaignOpenedAIM", campaign_id, start, limit)
    end
    alias :opened_aim :opened
    
    # Retrieve the Ecommerce Orders.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer)   = For large data sets, the page number to start at.
    # * limit (Integer)   = For large data sets, the number of results to return. Upper limit set at 500.
    # * since (DateTime)  = Pull only messages since this time - use YYYY-MM-DD HH:II:SS format in GMT.
    #
    # Returns:
    # An array of orders and their details for this campaign, including:
    # * store_id    (String)  = The store id generated by the plugin used to uniquely identify a store.
    # * store_name  (String)  = The store name collected by the plugin - often the domain name.
    # * order_id    (Integer) = The internal order id the store tracked this order by.
    # * email       (String)  = The email address that received this campaign and is associated with this order.
    # * order_total (Double)  = The order total.
    # * tax_total   (Double)  = The total tax for the order (if collected).
    # * ship_total  (Double)  = The shipping total for the order (if collected).
    # * order_date  (String)  = The date the order was tracked - from the store if possible, otherwise the GMT time received.
    # * lines       (Array)   = Containing details of the order - product, category, quantity, item cost.
    #
    def orders(campaign_id, start = 0, limit = 100, since = "2001-01-01 00:00:00")
      call("campaignEcommOrders", campaign_id, start, limit, since)
    end
    alias :ecomm_orders :orders
    
    # Pause an AutoResponder orRSS campaign from sending.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # True if successful.
    def pause(campaign_id)
      call("campaignPause", campaign_id)
    end
    
    # Replicate a campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # The ID of the newly created replicated campaign. (String)
    #
    def replicate(campaign_id)
      call("campaignReplicate", campaign_id)
    end
    alias :replicate_campaign :replicate
    
    # Resume sending an AutoResponder or RSS campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # True if successful.
    #
    def resume(campaign_id)
      call("campaignResume", campaign_id)
    end
    
    # Schedule a campaign to be sent in the future.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * time    (DateTime) =  The time to schedule the campaign. For A/B Split "schedule" campaigns, the time for Group A - in YYYY-MM-DD HH:II:SS format in GMT.
    # * time_b  (DateTime) =  The time to schedule Group B of an A/B Split "schedule" campaign - in YYYY-MM-DD HH:II:SS format in GMT. (optional)
    #
    # Returns:
    # True if successful.
    #
    def schedule(campaign_id, time = "#{1.day.from_now}", time_b = "")
      call("campaignSchedule", campaign_id, time, time_b)
    end
    alias :schedule_campaign :schedule
    
    # Send this campaign immediately.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign to send.
    #
    # Returns:
    # True if successful.
    def send(campaign_id)
      call("campaignSendNow", campaign_id)
    end
    alias :send_now :send
    
    # Send a test of this campaign to the provided email address(es).
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * emails    (Hash)    = A hash of email addresses to receive the test message.
    # * send_type (String)  = One of 'html', 'text' or nil (send both). Defaults to nil.
    #
    # Returns:
    # True if successful.
    #
    def send_test(campaign_id, emails = {}, send_type = nil)
      call("campaignSendTest", campaign_id, emails, send_type)
    end
    
    # Get the URL to a customized VIP Report for the specified campaign and optionally send an email
    # to someone with links to it. Note subsequent calls will overwrite anything already set for the
    # same campign (eg, the password).
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * options (Hash) = A hash of parameters which can be used to configure the shared report, including: (optional)
    #   * header_type (String)  = One of "text" or "image". Defaults to 'text'. (optional)
    #   * header_data (String)  = If "header_type" is text, the text to display. If "header_type" is "image" a valid URL to an image file. Note that images will be resized to be no more than 500x150. Defaults to the Accounts Company Name. (optional)
    #   * secure      (Boolean) = Whether to require a password for the shared report. Defaults to "true". (optional)
    #   * password    (String)  = If secure is true and a password is not included, we will generate one. It is always returned. (optional)
    #   * to_email    (String)  = Email address to share the report with - no value means an email will not be sent. (optional)
    #   * theme       (Array)   = An array containing either 3 or 6 character color code values for: "bg_color", "header_color", "current_tab", "current_tab_text", "normal_tab", "normal_tab_text", "hover_tab", "hover_tab_text". (optional)
    #   * css_url     (String)  = A link to an external CSS file to be included after our default CSS (http://vip-reports.net/css/vip.css) only if loaded via the "secure_url" - max 255 characters. (optional)
    #
    # Returns:
    # A struct containing details for the shared report including:
    # * title       (String) = The Title of the Campaign being shared.
    # * url         (String) = The URL to the shared report.
    # * secure_url  (String) = The URL to the shared report, including the password (good for loading in an IFRAME). For non-secure reports, this will not be returned.
    # * password    (String) = If secured, the password for the report, otherwise this field will not be returned.
    #
    def share_report(campaign_id, options = {})
      call("campaignShareReport", campaign_id, options)
    end
    
    # Get all email addresses with Soft Bounces for a given campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 15000.
    #
    # Returns:
    # An array of email addresses with Soft Bounces.
    #
    def soft_bounces(campaign_id, start = 0, limit = 1000)
      call("campaignSoftBounces", campaign_id, start, limit)
    end
    
    # Get all the relevant campaign statistics for this campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # An array of statistics for this campaign including:
    # * syntax_error      (Integer) = Number of email addresses in campaign that had syntactical errors.
    # * hard_bounces      (Integer) = Number of email addresses in campaign that hard bounced.
    # * soft_bounces      (Integer) = Number of email addresses in campaign that soft bounced.
    # * unsubscribes      (Integer) = Number of email addresses in campaign that unsubscribed.
    # * abuse_reports     (Integer) = Number of email addresses in campaign that reported campaign for abuse.
    # * forwards          (Integer) = Number of times email was forwarded to a friend.
    # * forwards_opens    (Integer) = Number of times a forwarded email was opened.
    # * opens             (Integer) = Number of times the campaign was opened.
    # * last_open         (Date)    = Date of the last time the email was opened.
    # * unique_opens      (Integer) = Number of people who opened the campaign.
    # * clicks            (Integer) = Number of times a link in the campaign was clicked.
    # * unique_clicks     (Integer) = Number of unique recipient/click pairs for the campaign.
    # * last_click        (Date)    = Date of the last time a link in the email was clicked.
    # * users_who_clicked (Integer) = Number of unique recipients who clicked on a link in the campaign.
    # * emails_sent       (Integer) = Number of email addresses campaign was sent to.
    #
    def stats(campaign_id)
      call("campaignStats", campaign_id)
    end
    alias :campaign_stats :stats
    
    # Update just about any setting for a campaign that has not been sent.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * name  (String)    = The parameter name.
    # * value (Variable)  = An appropriate value for the parameter.
    #
    # Returns:
    # True if successful, error code if not.
    #
    def update(campaign_id, name, value)
      call("campaignUpdate", campaign_id, name, value)
    end
    
    # Unschedule a campaign that is scheduled to be sent in the future.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    #
    # Returns:
    # True if successful.
    #
    def unschedule(campaign_id)
      call("campaignUnschedule", campaign_id)
    end
    
    # Get all unsubscribed email addresses for a given campaign.
    #
    # Parameters:
    # * campaign_id (String) = The ID of the campaign.
    # * start (Integer) = For large data sets, the page number to start at.
    # * limit (Integer) = For large data sets, the number of results to return. Upper limit set at 15000.
    # 
    # Returns:
    # An array of email addresses that unsubscribed from this campaign.
    #
    def unsubsribes(campaign_id, start = 0, limit = 1000)
      call("campaignUnsubscribes", campaign_id, start, limit)
    end
    
  end
end