package gateway

import (
	"fmt"
	"github.com/42wim/matterbridge/bridge/config"
	"github.com/BurntSushi/toml"
	"github.com/stretchr/testify/assert"
	"strconv"

	"testing"
)

var testconfig = `
[irc.freenode]
[mattermost.test]
[gitter.42wim]
[discord.test]
[slack.test]

[[gateway]]
    name = "bridge1"
    enable=true
    
    [[gateway.inout]]
    account = "irc.freenode"
    channel = "#wimtesting"
    
    [[gateway.inout]]
    account="gitter.42wim"
    channel="42wim/testroom"
    #channel="matterbridge/Lobby"

    [[gateway.inout]]
    account = "discord.test"
    channel = "general"
    
    [[gateway.inout]]
    account="slack.test"
    channel="testing"
	`

var testconfig2 = `
[irc.freenode]
[mattermost.test]
[gitter.42wim]
[discord.test]
[slack.test]

[[gateway]]
    name = "bridge1"
    enable=true
    
    [[gateway.in]]
    account = "irc.freenode"
    channel = "#wimtesting"
    
    [[gateway.in]]
    account="gitter.42wim"
    channel="42wim/testroom"

    [[gateway.inout]]
    account = "discord.test"
    channel = "general"
    
    [[gateway.out]]
    account="slack.test"
    channel="testing"
[[gateway]]
    name = "bridge2"
    enable=true
    
    [[gateway.in]]
    account = "irc.freenode"
    channel = "#wimtesting2"
    
    [[gateway.out]]
    account="gitter.42wim"
    channel="42wim/testroom"

    [[gateway.out]]
    account = "discord.test"
    channel = "general2"
	`
var testconfig3 = `
[irc.zzz]
[telegram.zzz]
[slack.zzz]
[[gateway]]
name="bridge"
enable=true

    [[gateway.inout]]
    account="irc.zzz"
    channel="#main"		

    [[gateway.inout]]
    account="telegram.zzz"
    channel="-1111111111111"

    [[gateway.inout]]
    account="slack.zzz"
    channel="irc"	
	
[[gateway]]
name="announcements"
enable=true
	
    [[gateway.in]]
    account="telegram.zzz"
    channel="-2222222222222"	
	
    [[gateway.out]]
    account="irc.zzz"
    channel="#main"		
	
    [[gateway.out]]
    account="irc.zzz"
    channel="#main-help"	

    [[gateway.out]]
    account="telegram.zzz"
    channel="--333333333333"	

    [[gateway.out]]
    account="slack.zzz"
    channel="general"		
	
[[gateway]]
name="bridge2"
enable=true

    [[gateway.inout]]
    account="irc.zzz"
    channel="#main-help"	

    [[gateway.inout]]
    account="telegram.zzz"
    channel="--444444444444"	

	
[[gateway]]
name="bridge3"
enable=true

    [[gateway.inout]]
    account="irc.zzz"
    channel="#main-telegram"	

    [[gateway.inout]]
    account="telegram.zzz"
    channel="--333333333333"
`

func maketestRouter(input string) *Router {
	var cfg *config.Config
	if _, err := toml.Decode(input, &cfg); err != nil {
		fmt.Println(err)
	}
	r, err := NewRouter(cfg)
	if err != nil {
		fmt.Println(err)
	}
	return r
}
func TestNewRouter(t *testing.T) {
	var cfg *config.Config
	if _, err := toml.Decode(testconfig, &cfg); err != nil {
		fmt.Println(err)
	}
	r, err := NewRouter(cfg)
	if err != nil {
		fmt.Println(err)
	}
	assert.Equal(t, 1, len(r.Gateways))
	assert.Equal(t, 4, len(r.Gateways["bridge1"].Bridges))
	assert.Equal(t, 4, len(r.Gateways["bridge1"].Channels))

	r = maketestRouter(testconfig2)
	assert.Equal(t, 2, len(r.Gateways))
	assert.Equal(t, 4, len(r.Gateways["bridge1"].Bridges))
	assert.Equal(t, 3, len(r.Gateways["bridge2"].Bridges))
	assert.Equal(t, 4, len(r.Gateways["bridge1"].Channels))
	assert.Equal(t, 3, len(r.Gateways["bridge2"].Channels))
	assert.Equal(t, &config.ChannelInfo{Name: "42wim/testroom", Direction: "out",
		ID: "42wim/testroomgitter.42wim", Account: "gitter.42wim",
		SameChannel: map[string]bool{"bridge2": false}},
		r.Gateways["bridge2"].Channels["42wim/testroomgitter.42wim"])
	assert.Equal(t, &config.ChannelInfo{Name: "42wim/testroom", Direction: "in",
		ID: "42wim/testroomgitter.42wim", Account: "gitter.42wim",
		SameChannel: map[string]bool{"bridge1": false}},
		r.Gateways["bridge1"].Channels["42wim/testroomgitter.42wim"])
	assert.Equal(t, &config.ChannelInfo{Name: "general", Direction: "inout",
		ID: "generaldiscord.test", Account: "discord.test",
		SameChannel: map[string]bool{"bridge1": false}},
		r.Gateways["bridge1"].Channels["generaldiscord.test"])
}

func TestGetDestChannel(t *testing.T) {
	r := maketestRouter(testconfig2)
	msg := &config.Message{Text: "test", Channel: "general", Account: "discord.test", Gateway: "bridge1", Protocol: "discord", Username: "test"}
	for _, br := range r.Gateways["bridge1"].Bridges {
		switch br.Account {
		case "discord.test":
			assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "general", Account: "discord.test", Direction: "inout", ID: "generaldiscord.test", SameChannel: map[string]bool{"bridge1": false}, Options: config.ChannelOptions{Key: ""}}},
				r.Gateways["bridge1"].getDestChannel(msg, *br))
		case "slack.test":
			assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "testing", Account: "slack.test", Direction: "out", ID: "testingslack.test", SameChannel: map[string]bool{"bridge1": false}, Options: config.ChannelOptions{Key: ""}}},
				r.Gateways["bridge1"].getDestChannel(msg, *br))
		case "gitter.42wim":
			assert.Equal(t, []config.ChannelInfo(nil), r.Gateways["bridge1"].getDestChannel(msg, *br))
		case "irc.freenode":
			assert.Equal(t, []config.ChannelInfo(nil), r.Gateways["bridge1"].getDestChannel(msg, *br))
		}
	}
}

func TestGetDestChannelAdvanced(t *testing.T) {
	r := maketestRouter(testconfig3)
	var msgs []*config.Message
	i := 0
	for _, gw := range r.Gateways {
		for _, channel := range gw.Channels {
			msgs = append(msgs, &config.Message{Text: "text" + strconv.Itoa(i), Channel: channel.Name, Account: channel.Account, Gateway: gw.Name, Username: "user" + strconv.Itoa(i)})
			i++
		}
	}
	hits := make(map[string]int)
	for _, gw := range r.Gateways {
		for _, br := range gw.Bridges {
			for _, msg := range msgs {
				channels := gw.getDestChannel(msg, *br)
				if gw.Name != msg.Gateway {
					assert.Equal(t, []config.ChannelInfo(nil), channels)
					continue
				}
				switch gw.Name {
				case "bridge":
					if (msg.Channel == "#main" || msg.Channel == "-1111111111111" || msg.Channel == "irc") && (msg.Account == "irc.zzz" || msg.Account == "telegram.zzz" || msg.Account == "slack.zzz") {
						hits[gw.Name]++
						switch br.Account {
						case "irc.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "#main", Account: "irc.zzz", Direction: "inout", ID: "#mainirc.zzz", SameChannel: map[string]bool{"bridge": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						case "telegram.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "-1111111111111", Account: "telegram.zzz", Direction: "inout", ID: "-1111111111111telegram.zzz", SameChannel: map[string]bool{"bridge": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						case "slack.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "irc", Account: "slack.zzz", Direction: "inout", ID: "ircslack.zzz", SameChannel: map[string]bool{"bridge": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						}
					}
				case "bridge2":
					if (msg.Channel == "#main-help" || msg.Channel == "--444444444444") && (msg.Account == "irc.zzz" || msg.Account == "telegram.zzz") {
						hits[gw.Name]++
						switch br.Account {
						case "irc.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "#main-help", Account: "irc.zzz", Direction: "inout", ID: "#main-helpirc.zzz", SameChannel: map[string]bool{"bridge2": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						case "telegram.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "--444444444444", Account: "telegram.zzz", Direction: "inout", ID: "--444444444444telegram.zzz", SameChannel: map[string]bool{"bridge2": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						}
					}
				case "bridge3":
					if (msg.Channel == "#main-telegram" || msg.Channel == "--333333333333") && (msg.Account == "irc.zzz" || msg.Account == "telegram.zzz") {
						hits[gw.Name]++
						switch br.Account {
						case "irc.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "#main-telegram", Account: "irc.zzz", Direction: "inout", ID: "#main-telegramirc.zzz", SameChannel: map[string]bool{"bridge3": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						case "telegram.zzz":
							assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "--333333333333", Account: "telegram.zzz", Direction: "inout", ID: "--333333333333telegram.zzz", SameChannel: map[string]bool{"bridge3": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
						}
					}
				case "announcements":
					if msg.Channel != "-2222222222222" && msg.Account != "telegram" {
						assert.Equal(t, []config.ChannelInfo(nil), channels)
						continue
					}
					hits[gw.Name]++
					switch br.Account {
					case "irc.zzz":
						assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "#main", Account: "irc.zzz", Direction: "out", ID: "#mainirc.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}, config.ChannelInfo{Name: "#main-help", Account: "irc.zzz", Direction: "out", ID: "#main-helpirc.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
					case "slack.zzz":
						assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "general", Account: "slack.zzz", Direction: "out", ID: "generalslack.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
					case "telegram.zzz":
						assert.Equal(t, []config.ChannelInfo{config.ChannelInfo{Name: "--333333333333", Account: "telegram.zzz", Direction: "out", ID: "--333333333333telegram.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
					}
				}
			}
		}
	}
	assert.Equal(t, map[string]int{"bridge3": 4, "bridge": 9, "announcements": 3, "bridge2": 4}, hits)
}