package models

import (
	"strings"
	"testing"
)

// slugCases is the table the admin SPA's slug preset is tested against as
// well (admin/tests/form/formState.test.ts in the framework repository,
// "slug preset matches the server rule"): the organisation model and the form
// must derive the same slug from the same name.
var slugCases = []struct{ text, want string }{
	{"Acme Records", "acme-records"},
	{"  Acme -- Records ", "acme-records"},
	{"ACME_Records 2", "acme-records-2"},
	{"Zażółć gęślą", "za-g-l"},
	{"Rock & Roll!!!", "rock-roll"},
	{"...leading and trailing...", "leading-and-trailing"},
	{"tab\tand\nnewline", "tab-and-newline"},
	{"emoji 🎵 music", "emoji-music"},
	{"CamelCaseText", "camelcasetext"},
	{"9 lives", "9-lives"},
	{"a", "a"},
	{"---", ""},
	{"   ", ""},
	{"", ""},
	{"ąęść", ""},
	{strings.Repeat("Long Name ", 40), strings.TrimSuffix(strings.Repeat("long-name-", 40), "-")},
}

func TestSlugifyTable(t *testing.T) {
	for _, tc := range slugCases {
		if got := Slugify(tc.text); got != tc.want {
			t.Errorf("Slugify(%q) = %q, want %q", tc.text, got, tc.want)
		}
	}
	// A slug is a fixed point, and it only holds lower-case ASCII letters,
	// digits and single hyphens between them.
	for _, tc := range slugCases {
		slug := Slugify(tc.text)
		if again := Slugify(slug); again != slug {
			t.Errorf("Slugify(Slugify(%q)) = %q, want %q", tc.text, again, slug)
		}
		if strings.HasPrefix(slug, "-") || strings.HasSuffix(slug, "-") || strings.Contains(slug, "--") {
			t.Errorf("Slugify(%q) = %q has a stray hyphen", tc.text, slug)
		}
		for _, r := range slug {
			if !(r >= 'a' && r <= 'z') && !(r >= '0' && r <= '9') && r != '-' {
				t.Errorf("Slugify(%q) = %q holds %q", tc.text, slug, r)
			}
		}
	}
}