# frozen_string_literal: true

module TimeTree
  module OAuthApp
    # TimeTree API OAuthApp client.
    class Client < BaseClient
      # @return [String]
      attr_reader :token

      # @param token [String] a TimeTree's access token.
      def initialize(token = nil)
        @token = token || TimeTree.configuration.oauth_app_token
        check_token
        @http_cmd = HttpCommand.new(API_HOST, self)
      end

      #
      # Get current user information.
      #
      # @return [TimeTree::User]
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def current_user
        res = @http_cmd.get '/user'
        raise ApiError.new(res) if res.status != 200

        to_model res.body[:data]
      end

      #
      # Get a single calendar's information.
      #
      # @param cal_id [String] calendar's id.
      # @param include_relationships [Array<symbol>]
      # includes association's object in the response.
      # @return [TimeTree::Calendar]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def calendar(cal_id, include_relationships: nil)
        check_calendar_id cal_id
        params = relationships_params(include_relationships, Calendar::RELATIONSHIPS)
        res = @http_cmd.get "/calendars/#{cal_id}", params
        raise ApiError.new(res) if res.status != 200

        to_model(res.body[:data], included: res.body[:included])
      end

      #
      # Get calendar list that current user can access.
      #
      # @param include_relationships [Array<symbol>]
      # includes association's object in the response.
      # @return [Array<TimeTree::Calendar>]
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def calendars(include_relationships: nil)
        params = relationships_params(include_relationships, Calendar::RELATIONSHIPS)
        res = @http_cmd.get '/calendars', params
        raise ApiError.new(res) if res.status != 200

        included = res.body[:included]
        res.body[:data].map { |item| to_model(item, included: included) }
      end

      #
      # Get a calendar's label information used in event.
      #
      # @param cal_id [String] calendar's id.
      # @return [Array<TimeTree::Label>]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def calendar_labels(cal_id)
        check_calendar_id cal_id
        res = @http_cmd.get "/calendars/#{cal_id}/labels"
        raise ApiError.new(res) if res.status != 200

        res.body[:data].map { |item| to_model(item) }
      end

      #
      # Get a calendar's member information.
      #
      # @param cal_id [String] calendar's id.
      # @return [Array<TimeTree::User>]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def calendar_members(cal_id)
        check_calendar_id cal_id
        res = @http_cmd.get "/calendars/#{cal_id}/members"
        raise ApiError.new(res) if res.status != 200

        res.body[:data].map { |item| to_model item }
      end

      #
      # Get the event's information.
      #
      # @param cal_id [String] calendar's id.
      # @param event_id [String] event's id.
      # @param include_relationships [Array<symbol>]
      # includes association's object in the response.
      # @return [TimeTree::Event]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::Error] if the event_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def event(cal_id, event_id, include_relationships: nil)
        check_calendar_id cal_id
        check_event_id event_id
        params = relationships_params(include_relationships, Event::RELATIONSHIPS)
        res = @http_cmd.get "/calendars/#{cal_id}/events/#{event_id}", params
        raise ApiError.new(res) if res.status != 200

        ev = to_model(res.body[:data], included: res.body[:included])
        ev.calendar_id = cal_id
        ev
      end

      #
      # Get the events' information after a request date.
      #
      # @param cal_id[String] calendar's id.
      # @param days [Integer] The number of days to get.
      # @param timezone [String] Timezone.
      # @param include_relationships [Array<symbol>]
      # includes association's object in the response.
      # @return [Array<TimeTree::Event>]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def upcoming_events(cal_id, days: 7, timezone: 'UTC', include_relationships: nil)
        check_calendar_id cal_id
        params = relationships_params(include_relationships, Event::RELATIONSHIPS)
        params.merge!(days: days, timezone: timezone)
        res = @http_cmd.get "/calendars/#{cal_id}/upcoming_events", params
        raise ApiError.new(res) if res.status != 200

        included = res.body[:included]
        res.body[:data].map do |item|
          ev = to_model(item, included: included)
          ev.calendar_id = cal_id
          ev
        end
      end

      #
      # Creates an event to the calendar.
      #
      # @param cal_id [String] calendar's id.
      # @param params [Hash] TimeTree request body format.
      # @return [TimeTree::Event]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def create_event(cal_id, params)
        check_calendar_id cal_id
        res = @http_cmd.post "/calendars/#{cal_id}/events", params
        raise ApiError.new(res) if res.status != 201

        ev = to_model res.body[:data]
        ev.calendar_id = cal_id
        ev
      end

      #
      # Updates an event.
      #
      # @param cal_id [String] calendar's id.
      # @param event_id [String] event's id.
      # @param params [Hash]
      # event's information specified in TimeTree request body format.
      # @return [TimeTree::Event]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::Error] if the event_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def update_event(cal_id, event_id, params)
        check_calendar_id cal_id
        check_event_id event_id
        res = @http_cmd.put "/calendars/#{cal_id}/events/#{event_id}", params
        raise ApiError.new(res) if res.status != 200

        ev = to_model res.body[:data]
        ev.calendar_id = cal_id
        ev
      end

      #
      # Deletes an event.
      #
      # @param cal_id [String] calendar's id.
      # @param event_id [String] event's id.
      # @return [true] if the operation succeeded.
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::Error] if the event_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status will not success.
      # @since 0.0.1
      def delete_event(cal_id, event_id)
        check_calendar_id cal_id
        check_event_id event_id
        res = @http_cmd.delete "/calendars/#{cal_id}/events/#{event_id}"
        raise ApiError.new(res) if res.status != 204

        true
      end

      #
      # Creates comment to an event.
      #
      # @param cal_id [String] calendar's id.
      # @param event_id [String] event's id.
      # @param params [Hash]
      # comment's information specified in TimeTree request body format.
      # @return [TimeTree::Activity]
      # @raise [TimeTree::Error] if the cal_id arg is empty.
      # @raise [TimeTree::Error] if the event_id arg is empty.
      # @raise [TimeTree::ApiError] if the http response status is not success.
      # @since 0.0.1
      def create_activity(cal_id, event_id, params)
        check_calendar_id cal_id
        check_event_id event_id
        res = @http_cmd.post "/calendars/#{cal_id}/events/#{event_id}/activities", params
        raise ApiError.new(res) if res.status != 201

        activity = to_model res.body[:data]
        activity.calendar_id = cal_id
        activity.event_id = event_id
        activity
      end

      def inspect
        limit_info = nil
        if defined?(@ratelimit_limit) && @ratelimit_limit
          limit_info = " ratelimit:#{ratelimit_remaining}/#{ratelimit_limit}"
        end
        if defined?(@ratelimit_reset_at) && @ratelimit_reset_at
          limit_info = "#{limit_info}, reset_at:#{ratelimit_reset_at.strftime('%m/%d %R')}"
        end
        "\#<#{self.class}:#{object_id}#{limit_info}>"
      end

    private

      def check_token
        check_required_property(@token, 'token')
      end

      def check_calendar_id(value)
        check_required_property(value, 'calendar_id')
      end
    end
  end
end