restructure app state, basic server connection using inputted user info and basic mainscreen

client/client.go

@@ -20,57 +20,93 @@ import (
 	"crypto/tls"
 	"fmt"
 	"log"
+	"strings"
+
+	"github.com/illusionman1212/gorc/parser"
 )
 
 type Client struct {
 	// tcp connection
-	conn *tls.Conn
+	Conn *tls.Conn
 
 	// channel to receive data that comes through from the connection
-	receive chan string
+	Receive chan string
 }
 
-func NewClient(host string, port string) *Client {
-	// TODO: allow for insecure connections thru a checkbox (needed for irc servers that maybe don't have encryption on)
+const CRLF = "\r\n"
+
+func NewClient(host string, port string, tlsEnabled bool) *Client {
 	// TODO: distinguish between secure and insecure connections
-	cfg := &tls.Config{ServerName: host}
 	addr := fmt.Sprintf("%s:%s", host, port)
+
+	cfg := &tls.Config{ServerName: host}
 	conn, err := tls.Dial("tcp", addr, cfg)
 	if err != nil {
 		// TODO: properly handle the error instead of Fatal-ing (failed to initiate a connection to server)
 		log.Fatal(err)
 	}
 
-	// TODO: read nickname and channel from user input (stdin ?? or TUI)
-	conn.Write([]byte("CAP LS\r\n"))
-	// conn.Write([]byte("PASS password"))
-	conn.Write([]byte("NICK illusion434\r\n"))
-	conn.Write([]byte("USER illusion434 0 * :illusion434\r\n"))
-	// TODO: CAP REQ :whatever capability the client recognizes and supports
-	conn.Write([]byte("CAP END\r\n"))
-	conn.Write([]byte("JOIN ##programming\r\n"))
-
 	return &Client{
-		conn:    conn,
-		receive: make(chan string),
+		Conn:    conn,
+		Receive: make(chan string),
 	}
 }
 
-func (c Client) handleCommand(message IRCMessage) {
+func (c Client) Register(nick string, password string, channel string) {
+	if c.Conn == nil {
+		// TODO: properly handle the error instead of Fatal-ing
+		log.Fatal("Attempted to write data to nil connection")
+	}
+
+	c.sendCommand("CAP", "LS")
+	if password != "" {
+		c.sendCommand("PASS", password)
+	}
+	// TODO: check if nickname has spaces and remove them
+	c.sendCommand("NICK", nick)
+	c.sendCommand("USER", nick, "0", "*", nick)
+	// TODO: CAP REQ :whatever capability the client recognizes and supports
+	c.sendCommand("CAP", "END")
+	c.sendCommand("JOIN", channel)
+}
+
+func (c Client) handleCommand(message parser.IRCMessage) {
+	fmt.Printf("Tags: %s\n", message.Tags)
+	fmt.Printf("Source: %s\n", message.Source)
+	fmt.Printf("Command: %s\n", message.Command)
+	fmt.Printf("Params: %s\n", message.Parameters)
+
 	switch message.Command {
 	case "PING":
-		c.conn.Write([]byte("PONG\r\n"))
+		c.sendCommand("PONG")
 		break
 	}
 	// TODO: handle all other commands
 }
 
+func (c Client) sendCommand(cmd string, params ...string) {
+	paramsString := ""
+	if len(params) > 0 {
+		paramsString = " " + strings.Join(params, " ")
+	}
+
+	// if we have more than 1 param then replace the last param's space with a " :"
+	// NOTE: not sure if we should only check if we have more than 1 param
+	// cuz one param could have spaces and would require a colon
+	if len(params) > 1 {
+		i := strings.LastIndex(paramsString, " ")
+		paramsString = paramsString[:i] + strings.Replace(paramsString[i:], " ", " :", 1)
+	}
+
+	c.Conn.Write([]byte(cmd + paramsString + CRLF))
+}
+
 func (c Client) Run() {
 	for {
 		select {
-		case line := <-c.receive:
-			messages := parseIRCMessage(line)
-			c.handleCommand(messages)
+		case line := <-c.Receive:
+			message := parser.ParseIRCMessage(line)
+			c.handleCommand(message)
 		}
 	}
 }

client/structs.go

@@ -1,29 +0,0 @@
-// gorc project
-// Copyright (C) 2021 IllusionMan1212 and contributors
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License along
-// with this program; if not, see https://www.gnu.org/licenses.
-
-package client
-
-type IRCMessage struct {
-	Tags       []Tag    // starts with @ | Optional
-	Source     string   // starts with : | Optional
-	Command    string   // can either be a string or a numeric value | Required
-	Parameters []string // Optional (Dependant on command)
-}
-
-type Tag struct {
-	key   string
-	value string
-}

main.go

@@ -27,22 +27,4 @@ func main() {
 	if err := tea.NewProgram(app.InitialState(), tea.WithAltScreen()).Start(); err != nil {
 		log.Fatal(err)
 	}
-
-	/*
-		// create new client with the provided host and port
-		client := NewClient("irc.libera.chat", "6697")
-		defer client.conn.Close()
-		go client.Run()
-
-		// main loop
-		r := bufio.NewReaderSize(client.conn, 512)
-		for {
-			msg, err := r.ReadString('\n')
-			if err != nil {
-				log.Print(err)
-			}
-
-			client.receive <- msg
-		}
-	*/
 }

parser/parser.go

@@ -14,20 +14,36 @@
 // You should have received a copy of the GNU General Public License along
 // with this program; if not, see https://www.gnu.org/licenses.
 
-package client
+package parser
 
 import (
 	"strings"
 )
 
+type IRCMessage struct {
+	Tags       []Tag    // starts with @ | Optional
+	Source     string   // starts with : | Optional
+	Command    string   // can either be a string or a numeric value | Required
+	Parameters []string // Optional (Dependant on command)
+}
+
+type Tag struct {
+	key   string
+	value string
+}
+
 func parseTags(rawTags string) []Tag {
 	// TODO:
 	// TOOD: some tags don't have an "=" and they're basically considered "true"
 	return nil
 }
 
-func parseIRCMessage(line string) IRCMessage {
-	ircMessage := &IRCMessage{}
+func ParseIRCMessage(line string) IRCMessage {
+	ircMessage := IRCMessage{}
+
+	if len(line) <= 0 {
+		return IRCMessage{}
+	}
 
 	if line[0] == '@' {
 		substrs := strings.SplitN(line, " ", 2)
@@ -63,5 +79,5 @@ func parseIRCMessage(line string) IRCMessage {
 		ircMessage.Parameters = parameters
 	}
 
-	return *ircMessage
+	return ircMessage
 }

ui/app/app.go

@@ -17,12 +17,16 @@
 package app
 
 import (
+	"bufio"
 	"log"
 	"os"
 
+	"github.com/charmbracelet/bubbles/textinput"
 	tea "github.com/charmbracelet/bubbletea"
+	"github.com/illusionman1212/gorc/client"
 	"github.com/illusionman1212/gorc/ui"
 	"github.com/illusionman1212/gorc/ui/login"
+	"github.com/illusionman1212/gorc/ui/mainscreen"
 	"golang.org/x/term"
 )
 
@@ -33,39 +37,44 @@ const (
 	MainScreen
 )
 
-// TODO: have a global State that holds a separate client State and separate tui State
-type State struct {
-	host string
-	port string
-
-	nick     string
-	password string
-
+type UI struct {
 	windowWidth   int
 	windowHeight  int
 	currentScreen Screen
-
-	login login.State
+	login         login.State
+	mainScreen    mainscreen.State
 }
 
-func InitialState() State {
+type State struct {
+	ui     UI
+	client *client.Client
+}
+
+func initialUiState() UI {
 	width, height, err := term.GetSize(int(os.Stdout.Fd()))
 	if err != nil {
+		// TODO: properly handle this error
 		log.Fatal(err)
 	}
 
+	return UI{
+		login:        login.NewLogin(),
+		windowWidth:  width,
+		windowHeight: height,
+	}
+}
+
+func InitialState() State {
 	s := State{
-		login:         login.NewLogin(),
-		windowWidth:   width,
-		windowHeight:  height,
-		currentScreen: Login,
+		client: &client.Client{},
+		ui:     initialUiState(),
 	}
 
 	return s
 }
 
 func (s State) Init() tea.Cmd {
-	return nil
+	return textinput.Blink
 }
 
 func (s State) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
@@ -74,26 +83,52 @@ func (s State) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		switch msg.String() {
 		case "ctrl+c":
 			// TODO: clean up and gracefully quit by leaving the IRC channel/server and then quit bubble.
+			if s.client.Conn != nil {
+				s.client.Conn.Close()
+			}
 			return s, tea.Quit
 		}
 
 	case tea.WindowSizeMsg:
-		s.windowWidth = msg.Width
-		s.windowHeight = msg.Height
+		s.ui.windowWidth = msg.Width
+		s.ui.windowHeight = msg.Height
 
 		ui.MainStyle = ui.MainStyle.
 			Width(msg.Width).
 			Height(msg.Height)
 
 		return s, nil
+	case login.ConnectingMsg:
+		host := s.ui.login.Inputs[0].Value()
+		port := s.ui.login.Inputs[1].Value()
+		channel := s.ui.login.Inputs[2].Value()
+		nickname := s.ui.login.Inputs[3].Value()
+		password := s.ui.login.Inputs[4].Value()
+		tlsEnabled := s.ui.login.TLS
+
+		s.ui.currentScreen = MainScreen
+
+		// create new client with the provided host and port
+		client := client.NewClient(host, port, tlsEnabled)
+		client.Register(nickname, password, channel)
+		s.client = client
+
+		r := bufio.NewReaderSize(client.Conn, 512)
+		s.ui.mainScreen.Reader = r
+
+		return s, mainscreen.InitialRead
 	}
 
 	// switch between which screen is currently active and update its state
-	switch s.currentScreen {
+	switch s.ui.currentScreen {
 	case Login:
-		loginState, loginCmd := s.login.Update(msg)
-		s.login = loginState
-		return s, loginCmd
+		state, cmd := s.ui.login.Update(msg)
+		s.ui.login = state
+		return s, cmd
+	case MainScreen:
+		state, cmd := s.ui.mainScreen.Update(msg)
+		s.ui.mainScreen = state
+		return s, cmd
 	}
 
 	return s, nil
@@ -101,9 +136,11 @@ func (s State) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 
 func (s State) View() string {
 	// switch between which screen is currently active and render it.
-	switch s.currentScreen {
+	switch s.ui.currentScreen {
 	case Login:
-		return s.login.View()
+		return s.ui.login.View()
+	case MainScreen:
+		return s.ui.mainScreen.View()
 	}
 
 	return "Error: this screen shouldn't ever show"

ui/login/cmds.go

@@ -0,0 +1,11 @@
+package login
+
+import (
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type ConnectingMsg struct{}
+
+func connect() tea.Msg {
+	return ConnectingMsg{}
+}

ui/login/login.go

@@ -79,7 +79,7 @@ func (s State) Update(msg tea.Msg) (State, tea.Cmd) {
 
 			// run the newClient cmd when pressing "enter" while focused on the connect button
 			if str == "enter" && s.FocusIndex == len(s.Inputs)+1 {
-				return s, tea.Quit // TODO: change this to create a newClient and connect using a tea.Cmd
+				return s, connect
 			}
 
 			// toggle tls state when pressing "enter" while focused on the checkbox

ui/mainscreen/cmds.go

@@ -0,0 +1,26 @@
+package mainscreen
+
+import (
+	"log"
+
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type ReceivedIRCCommandMsg struct {
+	Msg string
+}
+
+type InitialReadMsg struct{}
+
+func InitialRead() tea.Msg {
+	return InitialReadMsg{}
+}
+
+func (s State) readFromServer() tea.Msg {
+	msg, err := s.Reader.ReadString('\n')
+	if err != nil {
+		log.Print(err)
+	}
+
+	return ReceivedIRCCommandMsg{Msg: msg}
+}

ui/mainscreen/mainscreen.go

@@ -0,0 +1,34 @@
+package mainscreen
+
+import (
+	"bufio"
+	"fmt"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/illusionman1212/gorc/parser"
+)
+
+type State struct {
+	content string
+	Reader  *bufio.Reader
+}
+
+func (s State) Update(msg tea.Msg) (State, tea.Cmd) {
+	switch msg := msg.(type) {
+	case InitialReadMsg:
+		return s, s.readFromServer
+	case ReceivedIRCCommandMsg:
+		message := parser.ParseIRCMessage(msg.Msg)
+		fullMsg := fmt.Sprintf("%s %s %s", message.Source, message.Command, strings.Join(message.Parameters, " "))
+		s.content += fullMsg
+
+		return s, s.readFromServer
+	}
+
+	return s, nil
+}
+
+func (s State) View() string {
+	return s.content
+}