package gd

import (
	"math"
	"strconv"

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

type gd struct {
	locale          string
	pluralsCardinal []locales.PluralRule
	pluralsOrdinal  []locales.PluralRule
	decimal         []byte
	group           []byte
	minus           []byte
	percent         []byte
	perMille        []byte
	currencies      [][]byte // idx = enum of currency code
}

// New returns a new instance of translator for the 'gd' locale
func New() locales.Translator {
	return &gd{
		locale:          "gd",
		pluralsCardinal: []locales.PluralRule{2, 3, 4, 6},
		pluralsOrdinal:  nil,
		decimal:         []byte{0xd9, 0xab},
		group:           []byte{0xd9, 0xac},
		minus:           []byte{0xe2, 0x80, 0x8f, 0x2d},
		percent:         []byte{0xd9, 0xaa},
		perMille:        []byte{0xd8, 0x89},
		currencies:      [][]uint8{[]uint8{0x41, 0x44, 0x50}, []uint8{0x41, 0x45, 0x44}, []uint8{0x41, 0x46, 0x41}, []uint8{0x41, 0x46, 0x4e}, []uint8{0x41, 0x4c, 0x4b}, []uint8{0x41, 0x4c, 0x4c}, []uint8{0x41, 0x4d, 0x44}, []uint8{0x41, 0x4e, 0x47}, []uint8{0x41, 0x4f, 0x41}, []uint8{0x41, 0x4f, 0x4b}, []uint8{0x41, 0x4f, 0x4e}, []uint8{0x41, 0x4f, 0x52}, []uint8{0x41, 0x52, 0x41}, []uint8{0x41, 0x52, 0x4c}, []uint8{0x41, 0x52, 0x4d}, []uint8{0x41, 0x52, 0x50}, []uint8{0x41, 0x52, 0x53}, []uint8{0x41, 0x54, 0x53}, []uint8{0x41, 0x24}, []uint8{0x41, 0x57, 0x47}, []uint8{0x41, 0x5a, 0x4d}, []uint8{0x41, 0x5a, 0x4e}, []uint8{0x42, 0x41, 0x44}, []uint8{0x42, 0x41, 0x4d}, []uint8{0x42, 0x41, 0x4e}, []uint8{0x42, 0x42, 0x44}, []uint8{0x42, 0x44, 0x54}, []uint8{0x42, 0x45, 0x43}, []uint8{0x42, 0x45, 0x46}, []uint8{0x42, 0x45, 0x4c}, []uint8{0x42, 0x47, 0x4c}, []uint8{0x42, 0x47, 0x4d}, []uint8{0x42, 0x47, 0x4e}, []uint8{0x42, 0x47, 0x4f}, []uint8{0x42, 0x48, 0x44}, []uint8{0x42, 0x49, 0x46}, []uint8{0x42, 0x4d, 0x44}, []uint8{0x42, 0x4e, 0x44}, []uint8{0x42, 0x4f, 0x42}, []uint8{0x42, 0x4f, 0x4c}, []uint8{0x42, 0x4f, 0x50}, []uint8{0x42, 0x4f, 0x56}, []uint8{0x42, 0x52, 0x42}, []uint8{0x42, 0x52, 0x43}, []uint8{0x42, 0x52, 0x45}, []uint8{0x52, 0x24}, []uint8{0x42, 0x52, 0x4e}, []uint8{0x42, 0x52, 0x52}, []uint8{0x42, 0x52, 0x5a}, []uint8{0x42, 0x53, 0x44}, []uint8{0x42, 0x54, 0x4e}, []uint8{0x42, 0x55, 0x4b}, []uint8{0x42, 0x57, 0x50}, []uint8{0x42, 0x59, 0x42}, []uint8{0x42, 0x59, 0x52}, []uint8{0x42, 0x5a, 0x44}, []uint8{0x43, 0x41, 0x24}, []uint8{0x43, 0x44, 0x46}, []uint8{0x43, 0x48, 0x45}, []uint8{0x43, 0x48, 0x46}, []uint8{0x43, 0x48, 0x57}, []uint8{0x43, 0x4c, 0x45}, []uint8{0x43, 0x4c, 0x46}, []uint8{0x43, 0x4c, 0x50}, []uint8{0x43, 0x4e, 0x58}, []uint8{0x43, 0x4e, 0xc2, 0xa5}, []uint8{0x43, 0x4f, 0x50}, []uint8{0x43, 0x4f, 0x55}, []uint8{0x43, 0x52, 0x43}, []uint8{0x43, 0x53, 0x44}, []uint8{0x43, 0x53, 0x4b}, []uint8{0x43, 0x55, 0x43}, []uint8{0x43, 0x55, 0x50}, []uint8{0x43, 0x56, 0x45}, []uint8{0x43, 0x59, 0x50}, []uint8{0x43, 0x5a, 0x4b}, []uint8{0x44, 0x44, 0x4d}, []uint8{0x44, 0x45, 0x4d}, []uint8{0x44, 0x4a, 0x46}, []uint8{0x44, 0x4b, 0x4b}, []uint8{0x44, 0x4f, 0x50}, []uint8{0x44, 0x5a, 0x44}, []uint8{0x45, 0x43, 0x53}, []uint8{0x45, 0x43, 0x56}, []uint8{0x45, 0x45, 0x4b}, []uint8{0x45, 0x47, 0x50}, []uint8{0x45, 0x52, 0x4e}, []uint8{0x45, 0x53, 0x41}, []uint8{0x45, 0x53, 0x42}, []uint8{0x45, 0x53, 0x50}, []uint8{0x45, 0x54, 0x42}, []uint8{0xe2, 0x82, 0xac}, []uint8{0x46, 0x49, 0x4d}, []uint8{0x46, 0x4a, 0x44}, []uint8{0x46, 0x4b, 0x50}, []uint8{0x46, 0x52, 0x46}, []uint8{0xc2, 0xa3}, []uint8{0x47, 0x45, 0x4b}, []uint8{0x47, 0x45, 0x4c}, []uint8{0x47, 0x48, 0x43}, []uint8{0x47, 0x48, 0x53}, []uint8{0x47, 0x49, 0x50}, []uint8{0x47, 0x4d, 0x44}, []uint8{0x47, 0x4e, 0x46}, []uint8{0x47, 0x4e, 0x53}, []uint8{0x47, 0x51, 0x45}, []uint8{0x47, 0x52, 0x44}, []uint8{0x47, 0x54, 0x51}, []uint8{0x47, 0x57, 0x45}, []uint8{0x47, 0x57, 0x50}, []uint8{0x47, 0x59, 0x44}, []uint8{0x48, 0x4b, 0x24}, []uint8{0x48, 0x4e, 0x4c}, []uint8{0x48, 0x52, 0x44}, []uint8{0x48, 0x52, 0x4b}, []uint8{0x48, 0x54, 0x47}, []uint8{0x48, 0x55, 0x46}, []uint8{0x49, 0x44, 0x52}, []uint8{0x49, 0x45, 0x50}, []uint8{0x49, 0x4c, 0x50}, []uint8{0x49, 0x4c, 0x52}, []uint8{0xe2, 0x82, 0xaa}, []uint8{0xe2, 0x82, 0xb9}, []uint8{0x49, 0x51, 0x44}, []uint8{0x49, 0x52, 0x52}, []uint8{0x49, 0x53, 0x4a}, []uint8{0x49, 0x53, 0x4b}, []uint8{0x49, 0x54, 0x4c}, []uint8{0x4a, 0x4d, 0x44}, []uint8{0x4a, 0x4f, 0x44}, []uint8{0x4a, 0x50, 0xc2, 0xa5}, []uint8{0x4b, 0x45, 0x53}, []uint8{0x4b, 0x47, 0x53}, []uint8{0x4b, 0x48, 0x52}, []uint8{0x4b, 0x4d, 0x46}, []uint8{0x4b, 0x50, 0x57}, []uint8{0x4b, 0x52, 0x48}, []uint8{0x4b, 0x52, 0x4f}, []uint8{0xe2, 0x82, 0xa9}, []uint8{0x4b, 0x57, 0x44}, []uint8{0x4b, 0x59, 0x44}, []uint8{0x4b, 0x5a, 0x54}, []uint8{0x4c, 0x41, 0x4b}, []uint8{0x4c, 0x42, 0x50}, []uint8{0x4c, 0x4b, 0x52}, []uint8{0x4c, 0x52, 0x44}, []uint8{0x4c, 0x53, 0x4c}, []uint8{0x4c, 0x54, 0x4c}, []uint8{0x4c, 0x54, 0x54}, []uint8{0x4c, 0x55, 0x43}, []uint8{0x4c, 0x55, 0x46}, []uint8{0x4c, 0x55, 0x4c}, []uint8{0x4c, 0x56, 0x4c}, []uint8{0x4c, 0x56, 0x52}, []uint8{0x4c, 0x59, 0x44}, []uint8{0x4d, 0x41, 0x44}, []uint8{0x4d, 0x41, 0x46}, []uint8{0x4d, 0x43, 0x46}, []uint8{0x4d, 0x44, 0x43}, []uint8{0x4d, 0x44, 0x4c}, []uint8{0x4d, 0x47, 0x41}, []uint8{0x4d, 0x47, 0x46}, []uint8{0x4d, 0x4b, 0x44}, []uint8{0x4d, 0x4b, 0x4e}, []uint8{0x4d, 0x4c, 0x46}, []uint8{0x4d, 0x4d, 0x4b}, []uint8{0x4d, 0x4e, 0x54}, []uint8{0x4d, 0x4f, 0x50}, []uint8{0x4d, 0x52, 0x4f}, []uint8{0x4d, 0x54, 0x4c}, []uint8{0x4d, 0x54, 0x50}, []uint8{0x4d, 0x55, 0x52}, []uint8{0x4d, 0x56, 0x50}, []uint8{0x4d, 0x56, 0x52}, []uint8{0x4d, 0x57, 0x4b}, []uint8{0x4d, 0x58, 0x24}, []uint8{0x4d, 0x58, 0x50}, []uint8{0x4d, 0x58, 0x56}, []uint8{0x4d, 0x59, 0x52}, []uint8{0x4d, 0x5a, 0x45}, []uint8{0x4d, 0x5a, 0x4d}, []uint8{0x4d, 0x5a, 0x4e}, []uint8{0x4e, 0x41, 0x44}, []uint8{0x4e, 0x47, 0x4e}, []uint8{0x4e, 0x49, 0x43}, []uint8{0x4e, 0x49, 0x4f}, []uint8{0x4e, 0x4c, 0x47}, []uint8{0x4e, 0x4f, 0x4b}, []uint8{0x4e, 0x50, 0x52}, []uint8{0x4e, 0x5a, 0x24}, []uint8{0x4f, 0x4d, 0x52}, []uint8{0x50, 0x41, 0x42}, []uint8{0x50, 0x45, 0x49}, []uint8{0x50, 0x45, 0x4e}, []uint8{0x50, 0x45, 0x53}, []uint8{0x50, 0x47, 0x4b}, []uint8{0x50, 0x48, 0x50}, []uint8{0x50, 0x4b, 0x52}, []uint8{0x50, 0x4c, 0x4e}, []uint8{0x50, 0x4c, 0x5a}, []uint8{0x50, 0x54, 0x45}, []uint8{0x50, 0x59, 0x47}, []uint8{0x51, 0x41, 0x52}, []uint8{0x52, 0x48, 0x44}, []uint8{0x52, 0x4f, 0x4c}, []uint8{0x52, 0x4f, 0x4e}, []uint8{0x52, 0x53, 0x44}, []uint8{0x52, 0x55, 0x42}, []uint8{0x52, 0x55, 0x52}, []uint8{0x52, 0x57, 0x46}, []uint8{0x53, 0x41, 0x52}, []uint8{0x53, 0x42, 0x44}, []uint8{0x53, 0x43, 0x52}, []uint8{0x53, 0x44, 0x44}, []uint8{0x53, 0x44, 0x47}, []uint8{0x53, 0x44, 0x50}, []uint8{0x53, 0x45, 0x4b}, []uint8{0x53, 0x47, 0x44}, []uint8{0x53, 0x48, 0x50}, []uint8{0x53, 0x49, 0x54}, []uint8{0x53, 0x4b, 0x4b}, []uint8{0x53, 0x4c, 0x4c}, []uint8{0x53, 0x4f, 0x53}, []uint8{0x53, 0x52, 0x44}, []uint8{0x53, 0x52, 0x47}, []uint8{0x53, 0x53, 0x50}, []uint8{0x53, 0x54, 0x44}, []uint8{0x53, 0x55, 0x52}, []uint8{0x53, 0x56, 0x43}, []uint8{0x53, 0x59, 0x50}, []uint8{0x53, 0x5a, 0x4c}, []uint8{0xe0, 0xb8, 0xbf}, []uint8{0x54, 0x4a, 0x52}, []uint8{0x54, 0x4a, 0x53}, []uint8{0x54, 0x4d, 0x4d}, []uint8{0x54, 0x4d, 0x54}, []uint8{0x54, 0x4e, 0x44}, []uint8{0x54, 0x4f, 0x50}, []uint8{0x54, 0x50, 0x45}, []uint8{0x54, 0x52, 0x4c}, []uint8{0x54, 0x52, 0x59}, []uint8{0x54, 0x54, 0x44}, []uint8{0x4e, 0x54, 0x24}, []uint8{0x54, 0x5a, 0x53}, []uint8{0x55, 0x41, 0x48}, []uint8{0x55, 0x41, 0x4b}, []uint8{0x55, 0x47, 0x53}, []uint8{0x55, 0x47, 0x58}, []uint8{0x24}, []uint8{0x55, 0x53, 0x4e}, []uint8{0x55, 0x53, 0x53}, []uint8{0x55, 0x59, 0x49}, []uint8{0x55, 0x59, 0x50}, []uint8{0x55, 0x59, 0x55}, []uint8{0x55, 0x5a, 0x53}, []uint8{0x56, 0x45, 0x42}, []uint8{0x56, 0x45, 0x46}, []uint8{0xe2, 0x82, 0xab}, []uint8{0x56, 0x4e, 0x4e}, []uint8{0x56, 0x55, 0x56}, []uint8{0x57, 0x53, 0x54}, []uint8{0x46, 0x43, 0x46, 0x41}, []uint8{0x58, 0x41, 0x47}, []uint8{0x58, 0x41, 0x55}, []uint8{0x58, 0x42, 0x41}, []uint8{0x58, 0x42, 0x42}, []uint8{0x58, 0x42, 0x43}, []uint8{0x58, 0x42, 0x44}, []uint8{0x45, 0x43, 0x24}, []uint8{0x58, 0x44, 0x52}, []uint8{0x58, 0x45, 0x55}, []uint8{0x58, 0x46, 0x4f}, []uint8{0x58, 0x46, 0x55}, []uint8{0x43, 0x46, 0x41}, []uint8{0x58, 0x50, 0x44}, []uint8{0x43, 0x46, 0x50, 0x46}, []uint8{0x58, 0x50, 0x54}, []uint8{0x58, 0x52, 0x45}, []uint8{0x58, 0x53, 0x55}, []uint8{0x58, 0x54, 0x53}, []uint8{0x58, 0x55, 0x41}, []uint8{0x58, 0x58, 0x58}, []uint8{0x59, 0x44, 0x44}, []uint8{0x59, 0x45, 0x52}, []uint8{0x59, 0x55, 0x44}, []uint8{0x59, 0x55, 0x4d}, []uint8{0x59, 0x55, 0x4e}, []uint8{0x59, 0x55, 0x52}, []uint8{0x5a, 0x41, 0x4c}, []uint8{0x5a, 0x41, 0x52}, []uint8{0x5a, 0x4d, 0x4b}, []uint8{0x5a, 0x4d, 0x57}, []uint8{0x5a, 0x52, 0x4e}, []uint8{0x5a, 0x52, 0x5a}, []uint8{0x5a, 0x57, 0x44}, []uint8{0x5a, 0x57, 0x4c}, []uint8{0x5a, 0x57, 0x52}},
	}
}

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

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

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

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

	n := math.Abs(num)

	if n == 1 || n == 11 {
		return locales.PluralRuleOne
	} else if n == 2 || n == 12 {
		return locales.PluralRuleTwo
	} else if (n >= 3 && n <= 10) || (n >= 13 && n <= 19) {
		return locales.PluralRuleFew
	}

	return locales.PluralRuleOther
}

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

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

// FmtNumber returns 'num' with digits/precision of 'v' for 'gd' and handles both Whole and Real numbers based on 'v'
// returned as a []byte just in case the caller wishes to add more and can help
// avoid allocations; otherwise just cast as string.
func (gd *gd) FmtNumber(num float64, v uint64) []byte {

	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
	l := len(s) + len(gd.decimal) + len(gd.group)*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] == '.' {
			for j := len(gd.decimal) - 1; j >= 0; j-- {
				b = append(b, gd.decimal[j])
			}

			inWhole = true

			continue
		}

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

				count = 1
			} else {
				count++
			}
		}

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

	if num < 0 {
		for j := len(gd.minus) - 1; j >= 0; j-- {
			b = append(b, gd.minus[j])
		}
	}

	// 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 b
}