package templatefuncs

import (
	"fmt"

	"codeflow.dananglin.me.uk/apollo/spruce/internal/cv"
)

// FormatDuration outputs the employment/education
// duration as a formatted string.
func FormatDuration(duration cv.Duration) string {
	var start string

	startDate, err := duration.Start.Parse()

	if err != nil {
		start = "Unknown"
	} else {
		start = fmt.Sprintf("%s, %d", startDate.Month().String(), startDate.Year())
	}

	var end string

	if duration.Present {
		end = "Present"
	} else {
		endDate, err := duration.End.Parse()
		if err != nil {
			end = "Unknown"
		} else {
			end = fmt.Sprintf("%s, %d", endDate.Month().String(), endDate.Year())
		}
	}

	return start + " - " + end
}