package bg

import (
	"math"
	"strconv"
	"time"

	"github.com/go-playground/locales"
	"github.com/go-playground/locales/currency"
)

type bg struct {
	locale                 string
	pluralsCardinal        []locales.PluralRule
	pluralsOrdinal         []locales.PluralRule
	pluralsRange           []locales.PluralRule
	decimal                string
	group                  string
	minus                  string
	percent                string
	perMille               string
	timeSeparator          string
	inifinity              string
	currencies             []string // idx = enum of currency code
	currencyPositiveSuffix string
	currencyNegativePrefix string
	currencyNegativeSuffix string
	monthsAbbreviated      []string
	monthsNarrow           []string
	monthsWide             []string
	daysAbbreviated        []string
	daysNarrow             []string
	daysShort              []string
	daysWide               []string
	periodsAbbreviated     []string
	periodsNarrow          []string
	periodsShort           []string
	periodsWide            []string
	erasAbbreviated        []string
	erasNarrow             []string
	erasWide               []string
	timezones              map[string]string
}

// New returns a new instance of translator for the 'bg' locale
func New() locales.Translator {
	return &bg{
		locale:                 "bg",
		pluralsCardinal:        []locales.PluralRule{2, 6},
		pluralsOrdinal:         []locales.PluralRule{6},
		pluralsRange:           []locales.PluralRule{6},
		decimal:                ",",
		group:                  " ",
		minus:                  "-",
		percent:                "%",
		perMille:               "‰",
		timeSeparator:          ":",
		inifinity:              "∞",
		currencies:             []string{"ADP ", "AED", "AFA ", "AFN", "ALK ", "ALL", "AMD", "ANG", "AOA", "AOK ", "AON ", "AOR ", "ARA ", "ARL ", "ARM ", "ARP ", "ARS", "ATS ", "AUD", "AWG", "AZM ", "AZN", "BAD ", "BAM", "BAN ", "BBD", "BDT", "BEC ", "BEF ", "BEL ", "BGL ", "BGM ", "лв.", "BGO ", "BHD", "BIF", "BMD", "BND", "BOB", "BOL ", "BOP ", "BOV ", "BRB ", "BRC ", "BRE ", "BRL", "BRN ", "BRR ", "BRZ ", "BSD", "BTN", "BUK ", "BWP", "BYB ", "BYR", "BZD", "CAD", "CDF", "CHE ", "CHF", "CHW ", "CLE ", "CLF ", "CLP", "CNX ", "CNY", "COP", "COU ", "CRC", "CSD ", "CSK ", "CUC", "CUP", "CVE", "CYP ", "CZK", "DDM ", "DEM ", "DJF", "DKK", "DOP", "DZD", "ECS ", "ECV ", "EEK ", "EGP", "ERN", "ESA ", "ESB ", "ESP ", "ETB", "€", "FIM ", "FJD", "FKP", "FRF ", "GBP", "GEK ", "GEL", "GHC ", "GHS", "GIP", "GMD", "GNF", "GNS ", "GQE ", "GRD ", "GTQ", "GWE ", "GWP ", "GYD", "HKD", "HNL", "HRD ", "HRK", "HTG", "HUF", "IDR", "IEP ", "ILP ", "ILR ", "ILS", "INR", "IQD", "IRR", "ISJ ", "ISK", "ITL ", "JMD", "JOD", "JPY", "KES", "KGS", "KHR", "KMF", "KPW", "KRH ", "KRO ", "KRW", "KWD", "KYD", "KZT", "LAK", "LBP", "LKR", "LRD", "LSL ", "LTL", "LTT ", "LUC ", "LUF ", "LUL ", "LVL", "LVR ", "LYD", "MAD", "MAF ", "MCF ", "MDC ", "MDL", "MGA", "MGF ", "MKD", "MKN ", "MLF ", "MMK", "MNT", "MOP", "MRO", "MTL ", "MTP ", "MUR", "MVP ", "MVR", "MWK", "MXN", "MXP", "MXV", "MYR", "MZE ", "MZM ", "MZN", "NAD", "NGN", "NIC", "NIO", "NLG ", "NOK", "NPR", "NZD", "OMR", "PAB", "PEI ", "PEN", "PES ", "PGK", "PHP", "PKR", "PLN", "PLZ ", "PTE ", "PYG", "QAR", "RHD ", "ROL ", "RON", "RSD", "RUB", "RUR ", "RWF", "SAR", "SBD", "SCR", "SDD ", "SDG", "SDP ", "SEK", "SGD", "SHP", "SIT ", "SKK ", "SLL", "SOS", "SRD", "SRG ", "SSP", "STD", "SUR ", "SVC", "SYP", "SZL", "THB", "TJR ", "TJS", "TMM ", "TMT", "TND", "TOP", "TPE ", "TRL ", "TRY", "TTD", "TWD", "TZS", "UAH", "UAK ", "UGS ", "UGX", "щ.д.", "USN", "USS", "UYI ", "UYP ", "UYU", "UZS", "VEB ", "VEF", "VND", "VNN ", "VUV", "WST", "FCFA", "XAG ", "XAU ", "XBA ", "XBB ", "XBC ", "XBD ", "XCD", "XDR ", "XEU ", "XFO ", "XFU ", "CFA", "XPD ", "CFPF", "XPT ", "XRE ", "XSU ", "XTS ", "XUA ", "XXX ", "YDD ", "YER", "YUD ", "YUM ", "YUN ", "YUR ", "ZAL ", "ZAR", "ZMK ", "ZMW", "ZRN ", "ZRZ ", "ZWD ", "ZWL ", "ZWR "},
		currencyPositiveSuffix: " ",
		currencyNegativePrefix: "(",
		currencyNegativeSuffix: " )",
		monthsAbbreviated:      []string{"", "яну", "фев", "март", "апр", "май", "юни", "юли", "авг", "сеп", "окт", "ное", "дек"},
		monthsNarrow:           []string{"", "я", "ф", "м", "а", "м", "ю", "ю", "а", "с", "о", "н", "д"},
		monthsWide:             []string{"", "януари", "февруари", "март", "април", "май", "юни", "юли", "август", "септември", "октомври", "ноември", "декември"},
		daysAbbreviated:        []string{"нд", "пн", "вт", "ср", "чт", "пт", "сб"},
		daysNarrow:             []string{"н", "п", "в", "с", "ч", "п", "с"},
		daysShort:              []string{"нд", "пн", "вт", "ср", "чт", "пт", "сб"},
		daysWide:               []string{"неделя", "понеделник", "вторник", "сряда", "четвъртък", "петък", "събота"},
		periodsAbbreviated:     []string{"пр.об.", "сл.об."},
		periodsNarrow:          []string{"пр.об.", "сл.об."},
		periodsWide:            []string{"пр.об.", "сл.об."},
		erasAbbreviated:        []string{"пр.Хр.", "сл.Хр."},
		erasNarrow:             []string{"", ""},
		erasWide:               []string{"преди Христа", "след Христа"},
		timezones:              map[string]string{"UYT": "Уругвайско стандартно време", "ChST": "Чаморо – стандартно време", "HADT": "Хавайско-алеутско лятно часово време", "TMT": "Туркменистанско стандартно време", "JDT": "Японско лятно часово време", "LHST": "Лорд Хау – стандартно време", "GYT": "Гаяна", "NZDT": "Новозеландско лятно часово време", "GMT": "Средно гринуичко време", "JST": "Японско стандартно време", "PDT": "Северноамериканско тихоокеанско лятно часово време", "CST": "Северноамериканско централно стандартно време", "COST": "Колумбийско лятно часово време", "CDT": "Северноамериканско централно лятно часово време", "BOT": "Боливийско време", "UYST": "Уругвайско лятно часово време", "CHAST": "Чатъм – стандартно време", "ACST": "Австралия – централно стандартно време", "AWST": "Австралия – западно стандартно време", "NZST": "Новозеландско стандартно време", "BT": "Бутанско време", "CLT": "Чилийско стандартно време", "WESZ": "Западноевропейско лятно време", "LHDT": "Лорд Хау – лятно часово време", "CAT": "Централноафриканско време", "EST": "Северноамериканско източно стандартно време", "OESZ": "Източноевропейско лятно часово време", "GFT": "Френска Гвиана", "TMST": "Туркменистанско лятно часово време", "EAT": "Източноафриканско време", "ART": "Аржентинско стандартно време", "ACWST": "Австралия – западно централно стандартно време", "MYT": "Малайзийско време", "AKDT": "Аляска – лятно часово време", "WARST": "Западноаржентинско лятно часово време", "AEST": "Австралия – източно стандартно време", "AST": "Северноамериканско атлантическо стандартно време", "WITA": "Централноиндонезийско време", "HAT": "Нюфаундлендско лятно часово време", "MST": "MST", "∅∅∅": "Амазонско лятно часово време", "MESZ": "Централноевропейско лятно часово време", "CHADT": "Чатъм – лятно часово време", "CLST": "Чилийско лятно часово време", "COT": "Колумбийско стандартно време", "ADT": "Северноамериканско атлантическо лятно часово време", "WART": "Западноаржентинско стандартно време", "AKST": "Аляска – стандартно време", "MEZ": "Централноевропейско стандартно време", "WEZ": "Западноевропейско стандартно време", "WIB": "Западноиндонезийско време", "IST": "Индийско стандартно време", "HNT": "Нюфаундлендско стандартно време", "ACDT": "Австралия – централно лятно часово време", "SRT": "Суринамско време", "EDT": "Северноамериканско източно лятно часово време", "MDT": "MDT", "VET": "Венецуелско време", "WAT": "Западноафриканско стандартно време", "OEZ": "Източноевропейско стандартно време", "ARST": "Аржентинско лятно часово време", "AEDT": "Австралия – източно лятно часово време", "ECT": "Еквадорско време", "SAST": "Южноафриканско време", "WIT": "Източноиндонезийско време", "PST": "Северноамериканско тихоокеанско стандартно време", "WAST": "Западноафриканско лятно часово време", "ACWDT": "Австралия – западно централно лятно часово време", "SGT": "Сингапурско време", "AWDT": "Австралия – западно лятно часово време", "HAST": "Хавайско-алеутско стандартно време", "HKT": "Хонконгско стандартно време", "HKST": "Хонконгско лятно часово време"},
	}
}

// Locale returns the current translators string locale
func (bg *bg) Locale() string {
	return bg.locale
}

// PluralsCardinal returns the list of cardinal plural rules associated with 'bg'
func (bg *bg) PluralsCardinal() []locales.PluralRule {
	return bg.pluralsCardinal
}

// PluralsOrdinal returns the list of ordinal plural rules associated with 'bg'
func (bg *bg) PluralsOrdinal() []locales.PluralRule {
	return bg.pluralsOrdinal
}

// PluralsRange returns the list of range plural rules associated with 'bg'
func (bg *bg) PluralsRange() []locales.PluralRule {
	return bg.pluralsRange
}

// CardinalPluralRule returns the cardinal PluralRule given 'num' and digits/precision of 'v' for 'bg'
func (bg *bg) CardinalPluralRule(num float64, v uint64) locales.PluralRule {

	n := math.Abs(num)

	if n == 1 {
		return locales.PluralRuleOne
	}

	return locales.PluralRuleOther
}

// OrdinalPluralRule returns the ordinal PluralRule given 'num' and digits/precision of 'v' for 'bg'
func (bg *bg) OrdinalPluralRule(num float64, v uint64) locales.PluralRule {
	return locales.PluralRuleOther
}

// RangePluralRule returns the ordinal PluralRule given 'num1', 'num2' and digits/precision of 'v1' and 'v2' for 'bg'
func (bg *bg) RangePluralRule(num1 float64, v1 uint64, num2 float64, v2 uint64) locales.PluralRule {
	return locales.PluralRuleOther
}

// MonthAbbreviated returns the locales abbreviated month given the 'month' provided
func (bg *bg) MonthAbbreviated(month time.Month) string {
	return bg.monthsAbbreviated[month]
}

// MonthsAbbreviated returns the locales abbreviated months
func (bg *bg) MonthsAbbreviated() []string {
	return bg.monthsAbbreviated[1:]
}

// MonthNarrow returns the locales narrow month given the 'month' provided
func (bg *bg) MonthNarrow(month time.Month) string {
	return bg.monthsNarrow[month]
}

// MonthsNarrow returns the locales narrow months
func (bg *bg) MonthsNarrow() []string {
	return bg.monthsNarrow[1:]
}

// MonthWide returns the locales wide month given the 'month' provided
func (bg *bg) MonthWide(month time.Month) string {
	return bg.monthsWide[month]
}

// MonthsWide returns the locales wide months
func (bg *bg) MonthsWide() []string {
	return bg.monthsWide[1:]
}

// WeekdayAbbreviated returns the locales abbreviated weekday given the 'weekday' provided
func (bg *bg) WeekdayAbbreviated(weekday time.Weekday) string {
	return bg.daysAbbreviated[weekday]
}

// WeekdaysAbbreviated returns the locales abbreviated weekdays
func (bg *bg) WeekdaysAbbreviated() []string {
	return bg.daysAbbreviated
}

// WeekdayNarrow returns the locales narrow weekday given the 'weekday' provided
func (bg *bg) WeekdayNarrow(weekday time.Weekday) string {
	return bg.daysNarrow[weekday]
}

// WeekdaysNarrow returns the locales narrow weekdays
func (bg *bg) WeekdaysNarrow() []string {
	return bg.daysNarrow
}

// WeekdayShort returns the locales short weekday given the 'weekday' provided
func (bg *bg) WeekdayShort(weekday time.Weekday) string {
	return bg.daysShort[weekday]
}

// WeekdaysShort returns the locales short weekdays
func (bg *bg) WeekdaysShort() []string {
	return bg.daysShort
}

// WeekdayWide returns the locales wide weekday given the 'weekday' provided
func (bg *bg) WeekdayWide(weekday time.Weekday) string {
	return bg.daysWide[weekday]
}

// WeekdaysWide returns the locales wide weekdays
func (bg *bg) WeekdaysWide() []string {
	return bg.daysWide
}

// FmtNumber returns 'num' with digits/precision of 'v' for 'bg' and handles both Whole and Real numbers based on 'v'
func (bg *bg) FmtNumber(num float64, v uint64) string {

	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
	l := len(s) + 2 + 2*len(s[:len(s)-int(v)-1])/3
	count := 0
	inWhole := v == 0
	b := make([]byte, 0, l)

	for i := len(s) - 1; i >= 0; i-- {

		if s[i] == '.' {
			b = append(b, bg.decimal[0])
			inWhole = true
			continue
		}

		if inWhole {
			if count == 3 {
				for j := len(bg.group) - 1; j >= 0; j-- {
					b = append(b, bg.group[j])
				}
				count = 1
			} else {
				count++
			}
		}

		b = append(b, s[i])
	}

	if num < 0 {
		b = append(b, bg.minus[0])
	}

	// reverse
	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
		b[i], b[j] = b[j], b[i]
	}

	return string(b)
}

// FmtPercent returns 'num' with digits/precision of 'v' for 'bg' and handles both Whole and Real numbers based on 'v'
// NOTE: 'num' passed into FmtPercent is assumed to be in percent already
func (bg *bg) FmtPercent(num float64, v uint64) string {
	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
	l := len(s) + 3
	b := make([]byte, 0, l)

	for i := len(s) - 1; i >= 0; i-- {

		if s[i] == '.' {
			b = append(b, bg.decimal[0])
			continue
		}

		b = append(b, s[i])
	}

	if num < 0 {
		b = append(b, bg.minus[0])
	}

	// reverse
	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
		b[i], b[j] = b[j], b[i]
	}

	b = append(b, bg.percent...)

	return string(b)
}

// FmtCurrency returns the currency representation of 'num' with digits/precision of 'v' for 'bg'
func (bg *bg) FmtCurrency(num float64, v uint64, currency currency.Type) string {

	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
	symbol := bg.currencies[currency]
	l := len(s) + len(symbol) + 4 + 2*len(s[:len(s)-int(v)-1])/3
	count := 0
	inWhole := v == 0
	b := make([]byte, 0, l)

	for i := len(s) - 1; i >= 0; i-- {

		if s[i] == '.' {
			b = append(b, bg.decimal[0])
			inWhole = true
			continue
		}

		if inWhole {
			if count == 3 {
				for j := len(bg.group) - 1; j >= 0; j-- {
					b = append(b, bg.group[j])
				}
				count = 1
			} else {
				count++
			}
		}

		b = append(b, s[i])
	}

	if num < 0 {
		b = append(b, bg.minus[0])
	}

	// reverse
	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
		b[i], b[j] = b[j], b[i]
	}

	if int(v) < 2 {

		if v == 0 {
			b = append(b, bg.decimal...)
		}

		for i := 0; i < 2-int(v); i++ {
			b = append(b, '0')
		}
	}

	b = append(b, bg.currencyPositiveSuffix...)

	b = append(b, symbol...)

	return string(b)
}

// FmtAccounting returns the currency representation of 'num' with digits/precision of 'v' for 'bg'
// in accounting notation.
func (bg *bg) FmtAccounting(num float64, v uint64, currency currency.Type) string {

	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
	symbol := bg.currencies[currency]
	l := len(s) + len(symbol) + 6 + 2*len(s[:len(s)-int(v)-1])/3
	count := 0
	inWhole := v == 0
	b := make([]byte, 0, l)

	for i := len(s) - 1; i >= 0; i-- {

		if s[i] == '.' {
			b = append(b, bg.decimal[0])
			inWhole = true
			continue
		}

		if inWhole {
			if count == 3 {
				for j := len(bg.group) - 1; j >= 0; j-- {
					b = append(b, bg.group[j])
				}
				count = 1
			} else {
				count++
			}
		}

		b = append(b, s[i])
	}

	if num < 0 {

		b = append(b, bg.currencyNegativePrefix[0])

	}

	// reverse
	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
		b[i], b[j] = b[j], b[i]
	}

	if int(v) < 2 {

		if v == 0 {
			b = append(b, bg.decimal...)
		}

		for i := 0; i < 2-int(v); i++ {
			b = append(b, '0')
		}
	}

	if num < 0 {
		b = append(b, bg.currencyNegativeSuffix...)
		b = append(b, symbol...)
	} else {

		b = append(b, bg.currencyPositiveSuffix...)
		b = append(b, symbol...)
	}

	return string(b)
}

// FmtDateShort returns the short date representation of 't' for 'bg'
func (bg *bg) FmtDateShort(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x2e}...)

	if t.Month() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Month()), 10)

	b = append(b, []byte{0x2e}...)

	if t.Year() > 9 {
		b = append(b, strconv.Itoa(t.Year())[2:]...)
	} else {
		b = append(b, strconv.Itoa(t.Year())[1:]...)
	}

	b = append(b, []byte{}...)
	b = append(b, []byte{0x27, 0xd0, 0xb3, 0x27, 0x2e}...)

	return string(b)
}

// FmtDateMedium returns the medium date representation of 't' for 'bg'
func (bg *bg) FmtDateMedium(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x2e}...)

	if t.Month() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Month()), 10)

	b = append(b, []byte{0x2e}...)
	b = strconv.AppendInt(b, int64(t.Year()), 10)
	b = append(b, []byte{}...)
	b = append(b, []byte{0x27, 0xd0, 0xb3, 0x27, 0x2e}...)

	return string(b)
}

// FmtDateLong returns the long date representation of 't' for 'bg'
func (bg *bg) FmtDateLong(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x20}...)
	b = append(b, bg.monthsWide[t.Month()]...)
	b = append(b, []byte{0x20}...)
	b = strconv.AppendInt(b, int64(t.Year()), 10)
	b = append(b, []byte{}...)
	b = append(b, []byte{0x27, 0xd0, 0xb3, 0x27, 0x2e}...)

	return string(b)
}

// FmtDateFull returns the full date representation of 't' for 'bg'
func (bg *bg) FmtDateFull(t time.Time) string {

	b := make([]byte, 0, 32)

	b = append(b, bg.daysWide[t.Weekday()]...)
	b = append(b, []byte{0x2c, 0x20}...)
	b = strconv.AppendInt(b, int64(t.Day()), 10)
	b = append(b, []byte{0x20}...)
	b = append(b, bg.monthsWide[t.Month()]...)
	b = append(b, []byte{0x20}...)
	b = strconv.AppendInt(b, int64(t.Year()), 10)
	b = append(b, []byte{}...)
	b = append(b, []byte{0x27, 0xd0, 0xb3, 0x27, 0x2e}...)

	return string(b)
}

// FmtTimeShort returns the short time representation of 't' for 'bg'
func (bg *bg) FmtTimeShort(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)

	return string(b)
}

// FmtTimeMedium returns the medium time representation of 't' for 'bg'
func (bg *bg) FmtTimeMedium(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)

	return string(b)
}

// FmtTimeLong returns the long time representation of 't' for 'bg'
func (bg *bg) FmtTimeLong(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20}...)

	tz, _ := t.Zone()
	b = append(b, tz...)

	return string(b)
}

// FmtTimeFull returns the full time representation of 't' for 'bg'
func (bg *bg) FmtTimeFull(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, bg.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20}...)

	tz, _ := t.Zone()

	if btz, ok := bg.timezones[tz]; ok {
		b = append(b, btz...)
	} else {
		b = append(b, tz...)
	}

	return string(b)
}
