package common

import (
	"time"

	"cloud.o-forge.io/core/oc-lib/models/common/pricing"
	"cloud.o-forge.io/core/oc-lib/tools"
)

func GetPlannerNearestStart(start time.Time, planned map[tools.DataType]map[string]pricing.PricedItemITF) float64 {
	near := float64(-1)             // unset sentinel
	for _, items := range planned { // loop through the planned items
		for _, priced := range items { // loop through the priced items
			if priced.GetLocationStart() == nil { // if the start is nil,
				continue // skip the iteration
			}
			newS := priced.GetLocationStart() // get the start
			diff := newS.Sub(start).Seconds() // get the difference
			if near < 0 || diff < near {      // if the difference is less than the nearest start
				near = diff
			}
		}
	}
	if near < 0 {
		return 0 // no items found, start at the given start time
	}
	return near
}

// GetPlannerLongestTime returns the sum of all processing durations (conservative estimate).
// Returns -1 if any processing is a service (open-ended).
func GetPlannerLongestTime(planned map[tools.DataType]map[string]pricing.PricedItemITF) float64 {
	longestTime := float64(0)
	for _, priced := range planned[tools.PROCESSING_RESOURCE] {
		d := priced.GetExplicitDurationInS()
		if d < 0 {
			return -1 // service present: booking is open-ended
		}
		longestTime += d
	}
	return longestTime
}