# Notes to run:
#   gem install bundler
#   bundle install
#   rackup
# 
# Testing:
#   Visit http://localhost:9292/
#   Visit http://localhost:9292/?_escaped_fragment_

require 'bundler/setup'
require 'rack/snap_search'

use Rack::Static, urls: ['/img', '/js', '/css'], root: 'public'

use Rack::SnapSearch do |config|
    
    # Required: The email to authenticate with.
    config.email = 'user@example.com'
    
    # Required: The key to authenticate with.
    config.key = 'API_KEY_HERE'
    
    # Optional: The API URL to send requests to.
    config.api_url = 'https://snapsearch.io/api/v1/robot' # Default
    
    # Optional: The CA Cert file to use when sending HTTPS requests to the API.
    config.ca_cert_file = SnapSearch.root.join('resources', 'cacert.pem') # Default
    
    # Optional: Check X-Forwarded-Proto because Heroku SSL Support terminates at the load balancer.
    config.x_forwarded_proto = true # Default
    
    # Optional: Extra parameters to send to the API.
    config.parameters = {} # Default
    
    # Optional: Whitelisted routes. Should be an Array of Regexp instances.
    config.matched_routes = [] # Default
    
    # Optional: Blacklisted routes. Should be an Array of Regexp instances.
    config.ignored_routes = [] # Default
    
    # Optional: A path of the JSON file containing the user agent whitelist & blacklist.
    config.robots_json = SnapSearch.root.join('resources', 'robots.json') # Default
    
    # Optional: A path to the JSON file containing a single Hash with the keys `ignore` and `match`. These keys contain Arrays of Strings (user agents)
    config.extensions_json = SnapSearch.root.join('resources', 'extensions.json') # Default
    
    # Optional: Set to `true` to ignore requests that have invalid file extensions
    config.check_file_extensions = false # Default
    
    # Optional: A block to run when an exception occurs when making requests to the API.
    config.on_exception do |exception|
        p exception
    end
    
    # Optional: A block to run before the interception of a bot.
    config.before_intercept do |url|
        puts "Before interception\n  URL: #{url}"
    end
    
    # Optional: A block to run after the interception of a bot.
    config.after_intercept do |url, response|
        puts "After interception\n  URL: #{url}\n  Response: #{response}"
    end
    
    # Optional: A block to manipulate the response from the SnapSearch API if a bit is intercepted.
    config.response_callback do |status, headers, body|
        puts "Response callback\n  Status: #{status}\n  Headers: #{headers}\n  Body: #{body}"
        
        [ status, headers, body ]
    end
    
end

class Application
    
    def call(env)
        headers = {
            'Content-Type'    => 'text/html',
            'Cache-Control' => 'public, max-age=86400'
        }
        body = File.read('public/index.html')
        
        [ 200, headers, [body] ]
    end
    
end

run Application.new
