require 'debug'
# Router class for pairing incoming requests with routes 
class Router
    attr_reader :routes
    def initialize()
        @routes = []
    end

    # Method for adding a route to the router. Incoming requests will be checked against these routes to see if the incoming requests has a valid target.
    #
    # @param method [String] A string with the method for the request
    # @param input [String] A string for the input to match the request with
    # @param &block [Block] The block to execute and respond with if the route is matched.
    def add_route(method, input, &block)
        routeHash = {method: method, resource: input, block: block}
        @routes << routeHash
        p "added successfully, @routes are: #{@routes}"
    end

    # Method for matching the incoming requests with the expected routes. Returns a touple with either the matched object and an int 200 representing status or the request and an int 404 representing status
    #
    # @param request [Request] the Request class to find a match for
    # @return [Array] the array consisting of the matched method or the request and the status of the match.
    def match_route(request)

        match = @routes.find {|route| (route[:method] == request.method) && (request.resource.match?(route[:resource]))}

        if match != nil
            print("\nMatch: ", match, "\n")
            returner = [match, 200]
            return returner
        else
            if request.resource.match?(@routes[0][:resource]) != true #If the requested resource did not match the expected resource for that method
                p "failed to find: #{request.resource} resource.\nExpected: #{String(@routes[0][:resource])} resource"
            elsif @routes[0][:method] != request.method #If the current method did not match the expected method for that resource
                p "failed to find #{request.method} method.\nExpected: #{@routes[0][:method]} method"
            else
                p "Failed to match, got no reason, just kinda didn't feel like it"
            end
            returner = [request, 404]
            return returner
        end
    end

end