// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0

package locale // import "miniflux.app/v2/internal/locale"

// See https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html
// And http://www.unicode.org/cldr/charts/29/supplemental/language_plural_rules.html
var pluralForms = map[string]func(n int) int{
	// nplurals=2; plural=(n != 1);
	"default": func(n int) int {
		if n != 1 {
			return 1
		}
		return 0
	},
	// nplurals=6; plural=(n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n%100>=3 && n%100<=10 ? 3 : n%100>=11 ? 4 : 5);
	"ar_AR": func(n int) int {
		switch {
		case n == 0:
			return 0
		case n == 1:
			return 1
		case n == 2:
			return 2
		case n%100 >= 3 && n%100 <= 10:
			return 3
		case n%100 >= 11:
			return 4
		}
		return 5
	},
	// nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;
	"cs_CZ": func(n int) int {
		switch {
		case n == 1:
			return 0
		case n >= 2 && n <= 4:
			return 1
		}
		return 2
	},
	// nplurals=2; plural=(n > 1);
	"fr_FR": func(n int) int {
		if n > 1 {
			return 1
		}
		return 0
	},
	// nplurals=1; plural=0;
	"id_ID": func(n int) int {
		return 0
	},
	// nplurals=1; plural=0;
	"ja_JP": func(n int) int {
		return 0
	},
	// nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
	"pl_PL": func(n int) int {
		switch {
		case n == 1:
			return 0
		case n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20):
			return 1
		}
		return 2
	},
	// nplurals=2; plural=(n > 1);
	"pt_BR": func(n int) int {
		if n > 1 {
			return 1
		}
		return 0
	},
	// nplurals=3; plural=(n==1 ? 0 : n==0 || (n%100 > 0 && n%100 < 20) ? 1 : 2);
	"ro_RO": func(n int) int {
		switch {
		case n == 1:
			return 0
		case n == 0 || (n%100 > 0 && n%100 < 20):
			return 1
		}
		return 2
	},
	"ru_RU": pluralFormRuSrUa,
	// nplurals=2; plural=(n > 1);
	"tr_TR": func(n int) int {
		if n > 1 {
			return 1
		}
		return 0
	},
	"uk_UA": pluralFormRuSrUa,
	"sr_RS": pluralFormRuSrUa,
	// nplurals=1; plural=0;
	"zh_CN": func(n int) int {
		return 0
	},
	"zh_TW": func(n int) int {
		return 0
	},
	"nan_Latn_pehoeji": func(n int) int {
		return 0
	},
}

// nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
func pluralFormRuSrUa(n int) int {
	switch {
	case n%10 == 1 && n%100 != 11:
		return 0
	case n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20):
		return 1
	}
	return 2
}
