package headscale

import (
	"gopkg.in/check.v1"
)

func (s *Suite) TestWrongPath(c *check.C) {
	err := app.LoadACLPolicy("asdfg")
	c.Assert(err, check.NotNil)
}

func (s *Suite) TestBrokenHuJson(c *check.C) {
	err := app.LoadACLPolicy("./tests/acls/broken.hujson")
	c.Assert(err, check.NotNil)
}

func (s *Suite) TestInvalidPolicyHuson(c *check.C) {
	err := app.LoadACLPolicy("./tests/acls/invalid.hujson")
	c.Assert(err, check.NotNil)
	c.Assert(err, check.Equals, errEmptyPolicy)
}

func (s *Suite) TestParseHosts(c *check.C) {
	var hosts Hosts
	err := hosts.UnmarshalJSON(
		[]byte(
			`{"example-host-1": "100.100.100.100","example-host-2": "100.100.101.100/24"}`,
		),
	)
	c.Assert(hosts, check.NotNil)
	c.Assert(err, check.IsNil)
}

func (s *Suite) TestParseInvalidCIDR(c *check.C) {
	var hosts Hosts
	err := hosts.UnmarshalJSON([]byte(`{"example-host-1": "100.100.100.100/42"}`))
	c.Assert(hosts, check.IsNil)
	c.Assert(err, check.NotNil)
}

func (s *Suite) TestRuleInvalidGeneration(c *check.C) {
	err := app.LoadACLPolicy("./tests/acls/acl_policy_invalid.hujson")
	c.Assert(err, check.NotNil)
}

func (s *Suite) TestBasicRule(c *check.C) {
	err := app.LoadACLPolicy("./tests/acls/acl_policy_basic_1.hujson")
	c.Assert(err, check.IsNil)

	rules, err := app.generateACLRules()
	c.Assert(err, check.IsNil)
	c.Assert(rules, check.NotNil)
}

func (s *Suite) TestPortRange(c *check.C) {
	err := app.LoadACLPolicy("./tests/acls/acl_policy_basic_range.hujson")
	c.Assert(err, check.IsNil)

	rules, err := app.generateACLRules()
	c.Assert(err, check.IsNil)
	c.Assert(rules, check.NotNil)

	c.Assert(rules, check.HasLen, 1)
	c.Assert(rules[0].DstPorts, check.HasLen, 1)
	c.Assert(rules[0].DstPorts[0].Ports.First, check.Equals, uint16(5400))
	c.Assert(rules[0].DstPorts[0].Ports.Last, check.Equals, uint16(5500))
}

func (s *Suite) TestPortWildcard(c *check.C) {
	err := app.LoadACLPolicy("./tests/acls/acl_policy_basic_wildcards.hujson")
	c.Assert(err, check.IsNil)

	rules, err := app.generateACLRules()
	c.Assert(err, check.IsNil)
	c.Assert(rules, check.NotNil)

	c.Assert(rules, check.HasLen, 1)
	c.Assert(rules[0].DstPorts, check.HasLen, 1)
	c.Assert(rules[0].DstPorts[0].Ports.First, check.Equals, uint16(0))
	c.Assert(rules[0].DstPorts[0].Ports.Last, check.Equals, uint16(65535))
	c.Assert(rules[0].SrcIPs, check.HasLen, 1)
	c.Assert(rules[0].SrcIPs[0], check.Equals, "*")
}

func (s *Suite) TestPortNamespace(c *check.C) {
	namespace, err := app.CreateNamespace("testnamespace")
	c.Assert(err, check.IsNil)

	pak, err := app.CreatePreAuthKey(namespace.Name, false, false, nil)
	c.Assert(err, check.IsNil)

	_, err = app.GetMachine("testnamespace", "testmachine")
	c.Assert(err, check.NotNil)
	ips, _ := app.getAvailableIPs()
	machine := Machine{
		ID:             0,
		MachineKey:     "foo",
		NodeKey:        "bar",
		DiscoKey:       "faa",
		Name:           "testmachine",
		NamespaceID:    namespace.ID,
		Registered:     true,
		RegisterMethod: RegisterMethodAuthKey,
		IPAddresses:    ips,
		AuthKeyID:      uint(pak.ID),
	}
	app.db.Save(&machine)

	err = app.LoadACLPolicy(
		"./tests/acls/acl_policy_basic_namespace_as_user.hujson",
	)
	c.Assert(err, check.IsNil)

	rules, err := app.generateACLRules()
	c.Assert(err, check.IsNil)
	c.Assert(rules, check.NotNil)

	c.Assert(rules, check.HasLen, 1)
	c.Assert(rules[0].DstPorts, check.HasLen, 1)
	c.Assert(rules[0].DstPorts[0].Ports.First, check.Equals, uint16(0))
	c.Assert(rules[0].DstPorts[0].Ports.Last, check.Equals, uint16(65535))
	c.Assert(rules[0].SrcIPs, check.HasLen, 1)
	c.Assert(rules[0].SrcIPs[0], check.Not(check.Equals), "not an ip")
	c.Assert(len(ips), check.Equals, 1)
	c.Assert(rules[0].SrcIPs[0], check.Equals, ips[0].String())
}

func (s *Suite) TestPortGroup(c *check.C) {
	namespace, err := app.CreateNamespace("testnamespace")
	c.Assert(err, check.IsNil)

	pak, err := app.CreatePreAuthKey(namespace.Name, false, false, nil)
	c.Assert(err, check.IsNil)

	_, err = app.GetMachine("testnamespace", "testmachine")
	c.Assert(err, check.NotNil)
	ips, _ := app.getAvailableIPs()
	machine := Machine{
		ID:             0,
		MachineKey:     "foo",
		NodeKey:        "bar",
		DiscoKey:       "faa",
		Name:           "testmachine",
		NamespaceID:    namespace.ID,
		Registered:     true,
		RegisterMethod: RegisterMethodAuthKey,
		IPAddresses:    ips,
		AuthKeyID:      uint(pak.ID),
	}
	app.db.Save(&machine)

	err = app.LoadACLPolicy("./tests/acls/acl_policy_basic_groups.hujson")
	c.Assert(err, check.IsNil)

	rules, err := app.generateACLRules()
	c.Assert(err, check.IsNil)
	c.Assert(rules, check.NotNil)

	c.Assert(rules, check.HasLen, 1)
	c.Assert(rules[0].DstPorts, check.HasLen, 1)
	c.Assert(rules[0].DstPorts[0].Ports.First, check.Equals, uint16(0))
	c.Assert(rules[0].DstPorts[0].Ports.Last, check.Equals, uint16(65535))
	c.Assert(rules[0].SrcIPs, check.HasLen, 1)
	c.Assert(rules[0].SrcIPs[0], check.Not(check.Equals), "not an ip")
	c.Assert(len(ips), check.Equals, 1)
	c.Assert(rules[0].SrcIPs[0], check.Equals, ips[0].String())
}