package skillz.admin

import org.joda.time.DateTime
import org.joda.time.Hours
import org.joda.time.Interval
import org.joda.time.format.DateTimeFormat
import org.springframework.transaction.annotation.Transactional
import skillz.Game
import skillz.utils.TimeUtils

@Transactional
class GameMetricsJob {

    private static final String BOOTSTRAP_DATE_STRING = '05/05/2013'
    private static final String BOOTSTRAP_DATE_PATTERN = 'MM/dd/yyyy'
    private static final DateTime BOOTSTRAP_DATE

    static {
        def f = DateTimeFormat.forPattern(BOOTSTRAP_DATE_PATTERN)
        BOOTSTRAP_DATE = f.parseDateTime(BOOTSTRAP_DATE_STRING)
    }

    def createGameMetricsService

    static triggers = {
      simple repeatInterval: 5000l * 600 // execute job once in 5 seconds
    }

    def execute() {
        log.info('executing GameMetricsJob')

        def games = Game.list() + [ id: 'skillz' ]

        def lastMetric = GameMetrics.first()
        def startDate
        if (!lastMetric) {
            // bootstrap start date
            startDate = BOOTSTRAP_DATE
        } else {
            startDate = new DateTime(lastMetric.dateCreated)
        }

        // TEST code
        def f = DateTimeFormat.forPattern(BOOTSTRAP_DATE_PATTERN)
        def end = f.parseDateTime('05/06/2013')

        def intervals = TimeUtils.generateIntervals(Hours.ONE, startDate, end)

        GameMetrics.withTransaction {
            intervals.each { Interval interval ->
                games.each { game ->
                    def m = createGameMetricsService.create(
                            game.id.toString(), 'hourly', interval.start.toDate())
                    m.save()
                }
            }
        }

        log.info('finished GameMetricsJob')
    }
}