require 'pg'

require_relative 'CachingTable.rb'
require_relative 'TimeseriesTable.rb'

module Timeseries
	module Hoarder
		class Database
			attr_reader :pg
			attr_reader :data_sources
			
			def initialize(pg)
				@pg = pg

				@pg.exec("CREATE EXTENSION IF NOT EXISTS timescaledb")
				@pg.exec("CREATE EXTENSION IF NOT EXISTS timescaledb_toolkit")

				@pg.exec("CREATE SCHEMA IF NOT EXISTS ts_hoarder")

				@data_sources = CachingTable.new(self, 'sources', 'source')

				@series = {}
			end

			def add_timeseries(name, **opts)
				return @series[name] if @series.include? name

				new_series = SeriesTable.new(self, name, **opts)
			end
		end
	end
end