package irc

import (
	"crypto/tls"
	"testing"
	"time"
)

func TestConnectionEmtpyServer(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	err := irccon.Connect("")
	if err == nil {
		t.Fatal("emtpy server string not detected")
	}
}

func TestConnectionDoubleColon(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	err := irccon.Connect("::")
	if err == nil {
		t.Fatal("wrong number of ':' not detected")
	}
}

func TestConnectionMissingHost(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	err := irccon.Connect(":6667")
	if err == nil {
		t.Fatal("missing host not detected")
	}
}

func TestConnectionMissingPort(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	err := irccon.Connect("chat.freenode.net:")
	if err == nil {
		t.Fatal("missing port not detected")
	}
}

func TestConnectionNegativePort(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	err := irccon.Connect("chat.freenode.net:-1")
	if err == nil {
		t.Fatal("negative port number not detected")
	}
}

func TestConnectionTooLargePort(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	err := irccon.Connect("chat.freenode.net:65536")
	if err == nil {
		t.Fatal("too large port number not detected")
	}
}

func TestConnectionMissingLog(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	irccon.Log = nil
	err := irccon.Connect("chat.freenode.net:6667")
	if err == nil {
		t.Fatal("missing 'Log' not detected")
	}
}

func TestConnectionEmptyUser(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	// user may be changed after creation
	irccon.user = ""
	err := irccon.Connect("chat.freenode.net:6667")
	if err == nil {
		t.Fatal("empty 'user' not detected")
	}
}

func TestConnectionEmptyNick(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	// nick may be changed after creation
	irccon.nick = ""
	err := irccon.Connect("chat.freenode.net:6667")
	if err == nil {
		t.Fatal("empty 'nick' not detected")
	}
}

func TestRemoveCallback(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	irccon.VerboseCallbackHandler = true
	irccon.Debug = true

	done := make(chan int, 10)

	irccon.AddCallback("TEST", func(e *Event) { done <- 1 })
	id := irccon.AddCallback("TEST", func(e *Event) { done <- 2 })
	irccon.AddCallback("TEST", func(e *Event) { done <- 3 })

	// Should remove callback at index 1
	irccon.RemoveCallback("TEST", id)

	irccon.RunCallbacks(&Event{
		Code: "TEST",
	})

	var results []int

	results = append(results, <-done)
	results = append(results, <-done)

	if len(results) != 2 || results[0] == 2 || results[1] == 2 {
		t.Error("Callback 2 not removed")
	}
}

func TestWildcardCallback(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	irccon.VerboseCallbackHandler = true
	irccon.Debug = true

	done := make(chan int, 10)

	irccon.AddCallback("TEST", func(e *Event) { done <- 1 })
	irccon.AddCallback("*", func(e *Event) { done <- 2 })

	irccon.RunCallbacks(&Event{
		Code: "TEST",
	})

	var results []int

	results = append(results, <-done)
	results = append(results, <-done)

	if len(results) != 2 || !(results[0] == 1 && results[1] == 2) {
		t.Error("Wildcard callback not called")
	}
}

func TestClearCallback(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	irccon.VerboseCallbackHandler = true
	irccon.Debug = true

	done := make(chan int, 10)

	irccon.AddCallback("TEST", func(e *Event) { done <- 0 })
	irccon.AddCallback("TEST", func(e *Event) { done <- 1 })
	irccon.ClearCallback("TEST")
	irccon.AddCallback("TEST", func(e *Event) { done <- 2 })
	irccon.AddCallback("TEST", func(e *Event) { done <- 3 })

	irccon.RunCallbacks(&Event{
		Code: "TEST",
	})

	var results []int

	results = append(results, <-done)
	results = append(results, <-done)

	if len(results) != 2 || !(results[0] == 2 && results[1] == 3) {
		t.Error("Callbacks not cleared")
	}
}

func TestIRCemptyNick(t *testing.T) {
	irccon := IRC("", "go-eventirc")
	irccon = nil
	if irccon != nil {
		t.Error("empty nick didn't result in error")
		t.Fail()
	}
}

func TestIRCemptyUser(t *testing.T) {
	irccon := IRC("go-eventirc", "")
	if irccon != nil {
		t.Error("empty user didn't result in error")
	}
}
func TestConnection(t *testing.T) {
	irccon1 := IRC("go-eventirc1", "go-eventirc1")
	irccon1.VerboseCallbackHandler = true
	irccon1.Debug = true
	irccon2 := IRC("go-eventirc2", "go-eventirc2")
	irccon2.VerboseCallbackHandler = true
	irccon2.Debug = true
	err := irccon1.Connect("irc.freenode.net:6667")
	if err != nil {
		t.Log(err.Error())
		t.Fatal("Can't connect to freenode.")
	}
	err = irccon2.Connect("irc.freenode.net:6667")
	if err != nil {
		t.Log(err.Error())
		t.Fatal("Can't connect to freenode.")
	}
	irccon1.AddCallback("001", func(e *Event) { irccon1.Join("#go-eventirc") })
	irccon2.AddCallback("001", func(e *Event) { irccon2.Join("#go-eventirc") })
	con2ok := false
	irccon1.AddCallback("366", func(e *Event) {
		t := time.NewTicker(1 * time.Second)
		i := 10
		for {
			<-t.C
			irccon1.Privmsgf("#go-eventirc", "Test Message%d\n", i)
			if con2ok {
				i -= 1
			}
			if i == 0 {
				t.Stop()
				irccon1.Quit()
			}
		}
	})

	irccon2.AddCallback("366", func(e *Event) {
		irccon2.Privmsg("#go-eventirc", "Test Message\n")
		con2ok = true
		irccon2.Nick("go-eventnewnick")
	})

	irccon2.AddCallback("PRIVMSG", func(e *Event) {
		t.Log(e.Message())
		if e.Message() == "Test Message5" {
			irccon2.Quit()
		}
	})

	irccon2.AddCallback("NICK", func(e *Event) {
		if irccon2.nickcurrent == "go-eventnewnick" {
			t.Fatal("Nick change did not work!")
		}
	})
	go irccon2.Loop()
	irccon1.Loop()
}

func TestConnectionSSL(t *testing.T) {
	irccon := IRC("go-eventirc", "go-eventirc")
	irccon.VerboseCallbackHandler = true
	irccon.Debug = true
	irccon.UseTLS = true
	irccon.TLSConfig = &tls.Config{InsecureSkipVerify: true}
	err := irccon.Connect("irc.freenode.net:7000")
	if err != nil {
		t.Log(err.Error())
		t.Fatal("Can't connect to freenode.")
	}
	irccon.AddCallback("001", func(e *Event) { irccon.Join("#go-eventirc") })

	irccon.AddCallback("366", func(e *Event) {
		irccon.Privmsg("#go-eventirc", "Test Message\n")
		time.Sleep(2 * time.Second)
		irccon.Quit()
	})

	irccon.Loop()
}