module JiraSync

    require 'httparty'
    require 'uri'
    require 'json'

    class FetchError < StandardError
        attr_reader :status, :message

        def initialize(status, message)
            @reason = status
            @message = message
        end
    end


    class JiraClient

        def initialize(baseurl, username, password)
            @username = username
            @password = password
            @baseurl = baseurl
        end

        def get(jira_id)
            url = "#{@baseurl}/rest/api/latest/issue/#{jira_id}"
            auth = {:username => @username, :password => @password}
            response = HTTParty.get url, {:basic_auth => auth}
            if response.code == 200
                response.parsed_response
            else
                raise FetchError(response.code, "error retrieving #{jira_id}. response code was #{response.code}, url was #{url}")
            end
        end

        def latest_issue_for_project(project_id)
            url = "#{@baseurl}/rest/api/2/search?"
            auth = {:username => @username, :password => @password}

            response = HTTParty.get url, {:basic_auth => auth, :query => {:jql => 'project="' + project_id + '" order by created', fields: 'summary,updated', maxResults: '1'}}
            if response.code == 200
                response.parsed_response
            else
                raise FetchError(response.status, "no issue found for #{project_id}. response code was #{response.code}, url was #{url}")
            end
        end

        def changed_since(project_id, date)
            url = "#{@baseurl}/rest/api/2/search?"
            auth = {:username => @username, :password => @password}
            jql = 'project = "' + project_id + '" AND updated > ' + (date.to_time.to_i * 1000).to_s
            # "' + date.to_s + '"'
            response = HTTParty.get url, {:basic_auth => auth, :query => {:jql => jql, fields: 'summary,updated', maxResults: '1000'}}
            if response.code == 200
                response.parsed_response
            else
                raise FetchError(response.status, "no issue found for #{project_id}. response code was #{response.code}, url was #{url}")
            end
        end

        def project_info(project_id)
            url = "#{@baseurl}/rest/api/2/project/#{project_id}"
            auth = {:username => @username, :password => @password}
            response = HTTParty.get url, {:basic_auth => auth, :query => {:jql => 'project="' + project_id + '"', fields: 'summary,updated', maxResults: '50'}}
            if response.code == 200
                response.parse_response
            else
                raise "no issue found for #{project_id}. response code was #{response.code}, url was #{url}"
            end

        end
    end
end