package geodata

import (
	"sync"

	"github.com/xtls/xray-core/common"
)

var privateIPMatcher = sync.OnceValue(func() IPMatcher {
	return common.Must2(IPReg.BuildIPMatcher(common.Must2(ParseIPRules([]string{
		// https://www.iana.org/assignments/iana-ipv4-special-registry
		"0.0.0.0/8",      // "This network"
		"0.0.0.0/32",     // "This host on this network"
		"10.0.0.0/8",     // Private-Use
		"100.64.0.0/10",  // Shared Address Space
		"127.0.0.0/8",    // Loopback
		"169.254.0.0/16", // Link Local
		"172.16.0.0/12",  // Private-Use
		// "192.0.0.0/24",   // IETF Protocol Assignments
		"192.0.0.0/29",   // IPv4 Service Continuity Prefix
		"192.0.0.8/32",   // IPv4 dummy address
		"192.0.0.9/32",   // Port Control Protocol Anycast
		"192.0.0.10/32",  // Traversal Using Relays around NAT Anycast
		"192.0.0.170/32", // NAT64/DNS64 Discovery
		"192.0.0.171/32", // NAT64/DNS64 Discovery
		"192.0.2.0/24",   // Documentation (TEST-NET-1)
		// "192.31.196.0/24",    // AS112-v4
		"192.52.193.0/24", // AMT
		// "192.88.99.0/24",  // Deprecated (6to4 Relay Anycast)
		"192.88.99.2/32", // 6a44-relay anycast address
		"192.168.0.0/16", // Private-Use
		// "192.175.48.0/24",    // Direct Delegation AS112 Service
		"198.18.0.0/15",      // Benchmarking
		"198.51.100.0/24",    // Documentation (TEST-NET-2)
		"203.0.113.0/24",     // Documentation (TEST-NET-3)
		"240.0.0.0/4",        // Reserved
		"255.255.255.255/32", // Limited Broadcast

		// https://www.iana.org/assignments/multicast-addresses
		"224.0.0.0/4",

		// https://www.iana.org/assignments/iana-ipv6-special-registry
		"::1/128", // Loopback Address
		"::/128",  // Unspecified Address
		// "::ffff:0:0/96",     // IPv4-mapped Address
		"64:ff9b::/96",   // IPv4-IPv6 Translat.
		"64:ff9b:1::/48", // IPv4-IPv6 Translat.
		"100::/64",       // Discard-Only Address Block
		"100:0:0:1::/64", // Dummy IPv6 Prefix
		// "2001::/23",      // IETF Protocol Assignments
		"2001::/32",     // TEREDO
		"2001:1::1/128", // Port Control Protocol Anycast
		"2001:1::2/128", // Traversal Using Relays around NAT Anycast
		"2001:1::3/128", // DNS-SD Service Registration Protocol Anycast
		"2001:2::/48",   // Benchmarking
		"2001:3::/32",   // AMT
		// "2001:4:112::/48", // AS112-v6
		// "2001:10::/28",    // Deprecated (previously ORCHID)
		"2001:20::/28",  // ORCHIDv2
		"2001:30::/28",  // Drone Remote ID Protocol Entity Tags (DETs) Prefix
		"2001:db8::/32", // Documentation
		"2002::/16",     // 6to4
		// "2620:4f:8000::/48", // Direct Delegation AS112 Service
		"3fff::/20", // Documentation
		"5f00::/16", // Segment Routing (SRv6) SIDs
		"fc00::/7",  // Unique-Local
		"fe80::/10", // Link-Local Unicast

		// https://www.iana.org/assignments/ipv6-multicast-addresses
		"ff00::/8",
	}))))
})

func GetPrivateIPMatcher() IPMatcher { return privateIPMatcher() }

var privateDomainMatcher = sync.OnceValue(func() DomainMatcher {
	return common.Must2(DomainReg.BuildDomainMatcher(common.Must2(ParseDomainRules([]string{
		"lan",
		"localdomain",
		"example",
		"invalid",
		"localhost",
		"test",
		"local",
		"home.arpa",
		"internal",
		"regexp:^[a-z]([a-z0-9-]{0,61}[a-z0-9])?$", // Dotless domains
	}, Domain_Domain))))
})

func GetPrivateDomainMatcher() DomainMatcher { return privateDomainMatcher() }