package main

import (
	"strconv"
	"strings"
	"time"
	"unicode"

	todotxt "git.bullercodeworks.com/brian/go-todotxt"
)

func itoa(val int) string {
	return strconv.Itoa(val)
}

func atoi(val string) int {
	return oatoi(val, -1)
}

func oatoi(val string, def int) int {
	v, err := strconv.Atoi(val)
	if err != nil {
		return def
	}
	return v
}

func isCombination(s1, s2 []string) bool {
	if len(s1) != len(s2) {
		return false
	}
	for _, v := range s1 {
		var found bool
		for _, vv := range s2 {
			if v == vv {
				found = true
				break
			}
		}
		if !found {
			return false
		}
	}
	return true
}

// We split projects/contexts on spaces or commas
func splitFields(v string) []string {
	f := func(c rune) bool {
		return unicode.IsSpace(c) || c == ','
	}
	return strings.FieldsFunc(v, f)
}

func tagsToSlice(v map[string]string) []string {
	var ret []string
	for k, v := range v {
		ret = append(ret, k+":"+v)
	}
	return ret
}

func sliceToTags(v []string) map[string]string {
	ret := make(map[string]string)
	for _, vv := range v {
		tags := strings.Split(vv, ":")
		if len(tags) == 2 {
			ret[tags[0]] = tags[1]
		}
	}
	return ret
}

func sliceIsValidTags(v []string) bool {
	for _, vv := range v {
		if len(strings.Split(vv, ":")) != 2 {
			return false
		}
	}
	return true
}

func copyTaskList(t todotxt.TaskList) todotxt.TaskList {
	re := todotxt.NewTaskList()
	for _, v := range t {
		re.AddTask(&v)
	}
	return *re
}

func dateWithinNextDay(d time.Time) bool {
	return !d.IsZero() && d.Before(time.Now().Add(time.Hour*24))
}