package main

import (
	"code.google.com/p/go.net/websocket"
	"encoding/json"
	"log"
	"net/http"
	"testing"
)

type result struct {
	b   bool
	msg string
}

type clientIDTest struct {
	clientid ClientID
	expected result
}

type CreatedGame struct {
	Id string `json:"id"`
}

var clientIDTests = []clientIDTest{
	{ClientID{Type: "robot"}, result{true, ""}},
	{ClientID{Type: "spectator"}, result{true, ""}},
	{ClientID{Type: "schmarglenoggler"}, result{false, "usergent must be 'robot' or 'spectator'"}},
}

func TestClientIDs(t *testing.T) {
	for _, tt := range clientIDTests {
		v, msg := tt.clientid.Valid()
		actual := result{v, msg}
		if actual.b != tt.expected.b || actual.msg != tt.expected.msg {
			t.Errorf("%+v: expected %v, actual %v", tt.clientid, tt.expected, actual)
		}
	}
}

func TestClientIDParse(t *testing.T) {
	var s ClientID
	err := json.Unmarshal(
		[]byte(`{
            "type": "robot",
            "name": "dummy",
            "id": "24601",
            "useragent": "gorobots.js"
        }`), &s)
	if err != nil {
		t.Errorf("fail to parse: %v", err)
	}
}

var handled bool

func DummyServer() (*websocket.Conn, error) {
	if !handled {
		http.Handle("/ws/", websocket.Handler(addPlayer))
		http.Handle("/game/start/", JsonHandler(startGame))
		handled = true
	}

	games = make(map[string]*game)
	idg = NewIdGenerator()

	go http.ListenAndServe(*addr, nil)

	origin := "http://localhost/"
	url := "ws://localhost:8666/ws/"
	return websocket.Dial(url, "", origin)
}

func TestGoodProtocol(t *testing.T) {
	ws, err := DummyServer()
	log.Printf("blah: %+v", ws)

	resp, err := http.Get("http://localhost:8666/game/start/")
	if err != nil {
		t.Errorf("error getting: %+v", err)
	}
	defer resp.Body.Close()
	var g CreatedGame
	if err := json.NewDecoder(resp.Body).Decode(&g); err != nil {
		t.Errorf("json parse error? %+v", err)
	}
	log.Printf("g: %+v\n", g)

	err = websocket.JSON.Send(ws, GameID{
		"test",
	})
	if err != nil {
		t.Error(err)
	}

	var idreq IdRequest
	err = websocket.JSON.Receive(ws, &idreq)
	if err != nil {
		t.Errorf("fail: %v", err)
	}

	err = websocket.JSON.Send(ws, ClientID{
		"robot",
		"smcquay test robot 2",
		"unittest",
	})
	if err != nil {
		t.Error(err)
	}

	var gameparam GameParam
	err = websocket.JSON.Receive(ws, &gameparam)
	if gameparam.Type != "gameparam" {
		t.Errorf("didn't receive a good gameparam")
	}

	err = websocket.JSON.Send(ws, &Config{
		"bogus",
		stats{
			Hp:            200,
			Speed:         100,
			WeaponRadius:  50,
			ScannerRadius: 50,
		},
	})

	var handshake Handshake
	websocket.JSON.Receive(ws, &handshake)
	if !handshake.Success {
		t.Errorf("failed to validate correct stats request")
	}
}

func TestTooManyStatsProtocol(t *testing.T) {
	ws, err := DummyServer()

	var idreq IdRequest
	err = websocket.JSON.Receive(ws, &idreq)
	if err != nil {
		t.Errorf("fail: %v", err)
	}

	err = websocket.JSON.Send(ws, ClientID{
		"robot",
		"smcquay test robot",
		"unittest",
	})
	if err != nil {
		t.Error(err)
	}

	var gameparam GameParam
	err = websocket.JSON.Receive(ws, &gameparam)
	if gameparam.Type != "gameparam" {
		t.Errorf("didn't receive a good gameparam")
	}

	err = websocket.JSON.Send(ws, &Config{
		"bogus",
		stats{
			Hp:            200,
			Speed:         100,
			WeaponRadius:  150,
			ScannerRadius: 150,
		},
	})

	var handshake Handshake
	websocket.JSON.Receive(ws, &handshake)
	if handshake.Success {
		t.Errorf("failed to detect bad stats request")
	}
}

func TestBadUseragent(t *testing.T) {
	ws, err := DummyServer()

	var idreq IdRequest
	err = websocket.JSON.Receive(ws, &idreq)
	if err != nil {
		t.Errorf("fail: %v", err)
	}

	err = websocket.JSON.Send(ws, ClientID{
		"shitsnacks",
		"smcquay test robot",
		"unittest",
	})
	if err != nil {
		t.Error(err)
	}

	var gameparam GameParam
	err = websocket.JSON.Receive(ws, &gameparam)
	if gameparam.Type != "failure" {
		t.Errorf("tried sending bad type, didn't detect it")
	}
}

func TestOutOfOrderProtocol(t *testing.T) {
	ws, err := DummyServer()

	// send early here:
	err = websocket.JSON.Send(ws, ClientID{
		"robot",
		"smcquay test robot 2",
		"unittest",
	})
	if err != nil {
		t.Error(err)
	}

	var idreq IdRequest
	err = websocket.JSON.Receive(ws, &idreq)
	if idreq.Type != "idreq" {
		t.Errorf("Server skipped a step (idreq)")
	}

	// XXX: this thing gets interpreted server-side as a Config ...
	err = websocket.JSON.Send(ws, ClientID{
		Type:      "why doesn't this matter?",
		Name:      "smcquay test robot 2",
		Useragent: "unittest",
	})
	if err != nil {
		t.Error(err)
	}

	var gameparam GameParam
	err = websocket.JSON.Receive(ws, &gameparam)
	if gameparam.Type != "gameparam" {
		t.Errorf("didn't receive a good gameparam")
	}

	err = websocket.JSON.Send(ws, &Config{
		"bogus",
		stats{
			Hp:            200000,
			Speed:         10000,
			WeaponRadius:  5000,
			ScannerRadius: 50,
		},
	})

	var handshake Handshake
	websocket.JSON.Receive(ws, &handshake)
	if !handshake.Success {
		t.Errorf("failed to validate correct stats request")
	}
}