#!/bin/bash
# Test: Domain, host, and hostname validation
. "$(dirname "$0")/../lib/setup.sh"

oneTimeTearDown() { rm -rf "${MOCK_ROOT:-}"; }

testIsHost() {
	assertTrue "Simple hostname" "is_host 'router'"
	assertTrue "Hostname with hyphen" "is_host 'my-host'"
	assertTrue "Hostname with numbers" "is_host 'host123'"
	assertTrue "Single character" "is_host 'A'"
	assertFalse "Empty string" "is_host ''"
	assertFalse "Starts with hyphen" "is_host '-invalid'"
}

testIsHostname() {
	assertTrue "Simple domain" "is_hostname 'example.com'"
	assertTrue "Subdomain" "is_hostname 'sub.example.com'"
	assertTrue "Deep subdomain" "is_hostname 'deep.sub.example.com'"
	assertTrue "Hyphenated with ccTLD" "is_hostname 'my-site.co.uk'"
	assertFalse "Single label" "is_hostname 'localhost'"
	assertFalse "Empty string" "is_hostname ''"
	assertFalse "IP address" "is_hostname '192.168.1.1'"
}

testIsPunycode() {
	# Multi-label names where at least one label is xn--*
	assertTrue "Punycode label, ASCII TLD" "is_punycode 'xn--bcher-kva.de'"
	assertTrue "ASCII label, punycode TLD (.рф)" "is_punycode 'example.xn--p1ai'"
	assertTrue "Punycode label, punycode TLD (пример.бел)" "is_punycode 'xn--e1adjldbbpv.xn--90ais'"
	assertTrue "Punycode label, .рф TLD" "is_punycode 'xn--80aaa1cvac.xn--p1ai'"
	# Plain ASCII names should NOT match is_punycode (they go through is_hostname)
	assertFalse "Plain ASCII domain" "is_punycode 'example.com'"
	assertFalse "ASCII subdomain" "is_punycode 'sub.example.com'"
	# Single-label cases go through is_host, not is_punycode
	assertFalse "Bare punycode TLD (single label)" "is_punycode 'xn--p1ai'"
	assertFalse "Single label localhost" "is_punycode 'localhost'"
	# Unicode forms rejected (deferred)
	assertFalse "Unicode label rejected (deferred)" "is_punycode 'пример.бел'"
	assertFalse "Unicode label rejected (deferred)" "is_punycode 'bücher.de'"
	# Edge cases
	assertFalse "Empty string" "is_punycode ''"
	assertFalse "IP address" "is_punycode '192.168.1.1'"
}

testIsDomain() {
	assertTrue "Standard domain" "is_domain 'example.com'"
	assertTrue "Single-label host" "is_domain 'router'"
	assertTrue "Local domain" "is_domain 'my-server.local'"
	assertFalse "IPv4 not a domain" "is_domain '192.168.1.1'"
	assertFalse "Empty string" "is_domain ''"
	assertFalse "Bad MAC notation" "is_domain 'AA-BB-CC-DD-EE-FF'"
}

testIsDomainPunycode() {
	# is_domain composes is_host || is_hostname || is_punycode — all paths covered
	assertTrue "Bare punycode TLD via is_host" "is_domain 'xn--p1ai'"
	assertTrue "Bare punycode TLD via is_host" "is_domain 'xn--90ais'"
	assertTrue "Punycode label, ASCII TLD" "is_domain 'xn--bcher-kva.de'"
	assertTrue "ASCII label, punycode TLD" "is_domain 'example.xn--p1ai'"
	assertTrue "Punycode label, punycode TLD" "is_domain 'xn--e1adjldbbpv.xn--90ais'"
	assertFalse "Unicode form rejected (deferred)" "is_domain 'пример.бел'"
	assertFalse "Unicode form rejected (deferred)" "is_domain 'bücher.de'"
}

. shunit2