package cdr

import (
	"fmt"
)

func CombineTextCDRs(cdrLines []Line, prices []Price) ([]Text, error) {
	numTextCDRs := 0
	for _, l := range cdrLines {
		if l.Kind != TextLine {
			continue
		}
		numTextCDRs++
	}

	// Now convert each text CDR to a priced Text
	ret := make([]Text, numTextCDRs)
	i := 0
	for _, l := range cdrLines {
		if l.Kind != TextLine {
			continue
		}
		ret[i] = Text{
			PricedLine{
				Line:  l,
				Cost:  TEXT_OUTGOING_BUY,
				Price: TEXT_OUTGOING_SELL,
			},
		}
		i++
	}

	return ret, nil
}

func CombineDataCDRs(cdrLines []Line, prices []Price) ([]Data, error) {
	numDataCDRs := 0
	for _, l := range cdrLines {
		if l.Kind != DataLine {
			continue
		}
		numDataCDRs++
	}
	ret := make([]Data, numDataCDRs)
	return ret, fmt.Errorf("not yet implemented")
}

func CombineCallCDRs(cdrLines []Line, prices []Price) ([]Call, error) {
	// Preprocess the price list into a map of "destination" -> Price, filter out the Text destinations, and count how many Text CDRs we have
	destinationToPriceLine := make(map[string]Price)
	numCallCDRs := 0
	for _, l := range cdrLines {
		if l.Kind != VoiceLine {
			continue
		}
		if _, ok := destinationToPriceLine[l.Destination]; !ok {
			for _, p := range prices {
				if p.Type != PriceCall {
					continue
				}
				if p.Destination == l.Destination {
					destinationToPriceLine[l.Destination] = p
					break
				}
			}
		}
		numCallCDRs++
	}
	return nil, fmt.Errorf("not yet implemented")
}