package main

import (
	"errors"
	"log"
	"regexp"
	"strconv"
	"time"
)

type ChatWarsMessage struct {
	UserID64       int64  `json:"user_id"`
	SenderUserID64 int64  `json:"sender_user_id"`
	Date           int32  `json:"date"`
	ID64           int64  `json:"id"`
	ChatID64       int64  `json:"chat_id"`
	Text           string `json:"text"`
}

type MessageParsingRule struct {
	ID          int32
	Priority    int32
	Description string
	Rule        string
	MsgTypeID   int32
	re          *regexp.Regexp
}

const (
	objTypeUser      = 1
	objTypeGuild     = 2
	objTypeMessage   = 3
	objTypeWar       = 4
	objTypeWarReport = 5
	objTypeJob       = 6

	objSubTypeMessageUnknown         = 301
	objSubTypeMessageWar             = 302
	objSubTypeMessageMiniWar         = 303
	objSubTypeMessageGuildWar        = 304
	objSubTypeMessageReport          = 305
	objSubTypeMessageGReport         = 306
	objSubTypeMessageQuest           = 307
	objSubTypeMessageFight           = 308
	objSubTypeMessageHero            = 309
	objSubTypeMessageMe              = 310
	objSubTypeMessageInventory       = 311
	objSubTypeMessagePillageInc      = 312
	objSubTypeMessageTributeInc      = 313
	objSubTypeMessagePillageAck      = 314
	objSubTypeMessageTributeAck      = 315
	objSubTypeMessageAuctionAnnounce = 316
	objSubTypeMessageTime            = 317
	objSubTypeJobPillage             = 601
	objSubTypeJobTribute             = 602
	objSubTypeJobStatus              = 603
	objSubTypeJobWithdrawal          = 604
	objSubTypeJobGStock              = 605

	MQGetMsgWorkers       = 3
	SQLCWMsgWorkers       = 6
	SQLIdentifyMsgWorkers = 6
	SQLJobWorkers         = 3
)

var (
	chatWarsMonth = map[string]int{
		"Wintar":  1,
		"Hornung": 2,
		"Lenzin":  3,
		"Ōstar":   4,
		"Winni":   5,
		"Brāh":    6,
		"Hewi":    7,
		"Aran":    8,
		"Witu":    9,
		"Wīndume": 10,
		"Herbist": 11,
		"Hailag":  12}

	chatWarsDaysSpecial = map[int]map[int]int{
		2: {1060: 29},
		4: {1060: 29}}

	chatWarsDays = map[int]int{
		1:  31,
		2:  28,
		3:  31,
		4:  30,
		5:  31,
		6:  30,
		7:  31,
		8:  31,
		9:  30,
		10: 31,
		11: 30,
		12: 31}
)

func fromChatWarsDate(d string) (t time.Time, err error) {
	r := regexp.MustCompile(`(?P<Day>[0-9]{2}) (?P<Month>(Wintar|Hornung|Lenzin|Ōstar|Winni|Brāh|Hewi|Aran|Witu|Wīndume|Herbist|Hailag)) (?P<Year>[0-9]{4})( (?P<Hour>[0-9]{2}):(?P<Minute>[0-9]{2})){0,1}`)
	if r.FindStringSubmatch(d) != nil {
		log.Printf("fromChatWarsDate : Day : %s\n", r.ReplaceAllString(d, "${Day}"))
		day, _ := strconv.Atoi(r.ReplaceAllString(d, "${Day}"))
		log.Printf("fromChatWarsDate : Month : %s\n", r.ReplaceAllString(d, "${Month}"))
		log.Printf("fromChatWarsDate : Year : %s\n", r.ReplaceAllString(d, "${Year}"))
		year, _ := strconv.Atoi(r.ReplaceAllString(d, "${Year}"))
		log.Printf("fromChatWarsDate : Hour : %s\n", r.ReplaceAllString(d, "${Hour}"))
		hour, _ := strconv.Atoi(r.ReplaceAllString(d, "${Hour}"))
		log.Printf("fromChatWarsDate : Minute : %s\n", r.ReplaceAllString(d, "${Minute}"))
		minute, _ := strconv.Atoi(r.ReplaceAllString(d, "${Minute}"))
		days := int(0)
		for i := 1059; i < year; i++ {
			days = days + 365
		}
		for i := 1; i < chatWarsMonth[r.ReplaceAllString(d, "${Month}")]; i++ {
			if _, special := chatWarsDaysSpecial[year][i]; special {
				days = days + chatWarsDaysSpecial[year][i]
			} else {
				days = days + chatWarsDays[i]
			}
		}
		for i := 1; i < day; i++ {
			days++
		}

		t, _ := time.Parse(time.RFC3339, "2017-10-01T00:00:00+00:00")
		t = t.AddDate(0, 0, (days / 3))
		t = t.Add(time.Hour * time.Duration(days%3) * 8)
		t = t.Add(time.Minute * time.Duration(hour) * 20)
		t = t.Add(time.Second * time.Duration(minute) * 20)
		return t, nil
	} else {
		return time.Now(), errors.New("Wrong format")
	}
}

func toChatWarsDate(t time.Time) (s string, err error) {
	return "test", nil
}