1 files changed, 278 insertions, 0 deletions
diff --git a/ui/views/login.go b/ui/views/login.go
new file mode 100644
index 0000000..e42d37f
--- /dev/null
+++ b/ui/views/login.go
@@ -0,0 +1,278 @@
+package views
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+// Model holds the state for login page
+type loginModel struct {
+	username  textinput.Model
+	password  textinput.Model
+	focus     int
+	err       error
+	isLoading bool
+	token     string
+	width     int
+	height    int
+}
+
+// Response from API
+type loginResponse struct {
+	Token string `json:"token"`
+	Error string `json:"error"`
+}
+
+// Initialize loginModel
+func LoginModel() loginModel {
+	inputStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("#7EE2A8"))
+
+	username := textinput.New()
+	username.Prompt = " "
+	username.TextStyle = inputStyle
+	username.Placeholder = "mario.rossi"
+	username.Focus()
+	username.CharLimit = 156
+	username.Width = 30
+
+	password := textinput.New()
+	password.Prompt = " "
+	password.TextStyle = inputStyle
+	password.Placeholder = "*****"
+	password.EchoMode = textinput.EchoPassword
+	password.CharLimit = 156
+	password.Width = 30
+
+	width, height := GetTerminalSize()
+
+	return loginModel{
+		username:  username,
+		password:  password,
+		focus:     0,
+		err:       nil,
+		isLoading: false,
+		token:     "",
+		width:     width,
+		height:    height,
+	}
+}
+
+// Init function
+func (m loginModel) Init() tea.Cmd {
+	ClearScreen()
+	return textinput.Blink
+}
+
+// Update function
+func (m loginModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		return m, nil
+	case tea.KeyMsg:
+		switch msg.Type {
+		case tea.KeyUp:
+			m.focus = 0
+			m.username.Focus()
+			m.password.Blur()
+		case tea.KeyDown:
+			m.focus = 1
+			m.username.Blur()
+			m.password.Focus()
+		case tea.KeyEnter:
+			if !m.isLoading {
+				m.isLoading = true
+				return m, m.loginCallback()
+			}
+		case tea.KeyTab:
+			m.focus = (m.focus + 1) % 2
+			if m.focus == 0 {
+				m.username.Focus()
+				m.password.Blur()
+			} else {
+				m.username.Blur()
+				m.password.Focus()
+			}
+		case tea.KeyCtrlC:
+			return m, tea.Quit
+		}
+	case loginResponse:
+		m.isLoading = false
+		if msg.Error != "" {
+			m.err = fmt.Errorf(msg.Error)
+			m.focus = 0
+			m.username.Focus()
+			m.password.Blur()
+		} else {
+			m.token = msg.Token
+			ClearScreen()
+			f, err := os.OpenFile(".rahannarc", os.O_WRONLY|os.O_CREATE, 0644)
+			if err != nil {
+				m.err = err
+				break
+			}
+			defer f.Close()
+
+			f.Write([]byte(m.token))
+
+			return m, tea.Quit
+		}
+	case error:
+		m.isLoading = false
+		m.err = msg
+		m.focus = 0
+		m.username.Focus()
+		m.password.Blur()
+	}
+
+	var cmd tea.Cmd
+	m.username, cmd = m.username.Update(msg)
+	cmdPassword := tea.Batch(cmd)
+	m.password, cmd = m.password.Update(msg)
+	return m, tea.Batch(cmd, cmdPassword)
+}
+
+// Login API callback
+func (m loginModel) loginCallback() tea.Cmd {
+	return func() tea.Msg {
+		url := os.Getenv("API_BASE") + "/auth/login"
+
+		payload, err := json.Marshal(map[string]string{
+			"username": m.username.Value(),
+			"password": m.password.Value(),
+		})
+
+		if err != nil {
+			return loginResponse{Error: err.Error()}
+		}
+
+		resp, err := http.Post(url, "application/json", bytes.NewReader(payload))
+		if err != nil {
+			return loginResponse{Error: err.Error()}
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusOK {
+			var response loginResponse
+			err = json.NewDecoder(resp.Body).Decode(&response)
+			if err != nil {
+				return loginResponse{Error: fmt.Sprintf("HTTP error: %d, unable to decode body", resp.StatusCode)}
+			}
+			return loginResponse{Error: response.Error}
+		}
+
+		var response loginResponse
+		err = json.NewDecoder(resp.Body).Decode(&response)
+		if err != nil {
+			return loginResponse{Error: fmt.Sprintf("Error decoding JSON: %v", err)}
+		}
+
+		return response
+	}
+}
+
+// View function (UI rendering)
+func (m loginModel) View() string {
+	width, height := m.width, m.height
+	formWidth := getFormWidth(width)
+
+	// Styles
+	logoStyle := lipgloss.NewStyle().
+		Foreground(lipgloss.Color("#7ee2a8")).
+		Bold(true).
+		Align(lipgloss.Center).
+		Width(width)
+
+	borderStyle := lipgloss.NewStyle().
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(lipgloss.Color("#00ffcc")).
+		Padding(1, 2).
+		Align(lipgloss.Center).
+		Width(formWidth)
+
+	titleStyle := lipgloss.NewStyle().
+		Bold(true).
+		Foreground(lipgloss.Color("#7ee2a8")).
+		Align(lipgloss.Center).
+		Width(formWidth - 4) // Account for padding
+
+	labelStyle := lipgloss.NewStyle().
+		Width(10).
+		Align(lipgloss.Right)
+
+	inputWrapStyle := lipgloss.NewStyle().
+		Align(lipgloss.Center).
+		Width(formWidth - 4) // Account for padding
+
+	errorStyle := lipgloss.NewStyle().
+		Foreground(lipgloss.Color("#ff0000")).
+		Align(lipgloss.Center).
+		Width(formWidth - 4) // Account for padding
+
+	statusStyle := lipgloss.NewStyle().
+		Align(lipgloss.Center).
+		Bold(true).
+		Width(formWidth - 4) // Account for padding
+
+	// Error message
+	formError := ""
+	if m.err != nil {
+		formError = fmt.Sprintf("Error: %v", m.err.Error())
+	}
+
+	// Status message
+	statusMsg := fmt.Sprintf("Press %s to login", lipgloss.NewStyle().Italic(true).Render("Enter"))
+	if m.isLoading {
+		statusMsg = "Logging in..."
+	}
+
+	form := lipgloss.JoinVertical(lipgloss.Center,
+		titleStyle.Render("Sign in to your account"),
+		"\n",
+		errorStyle.Render(formError),
+		inputWrapStyle.Render(
+			lipgloss.JoinHorizontal(lipgloss.Left,
+				labelStyle.Render("Username:"),
+				m.username.View(),
+			),
+		),
+		inputWrapStyle.Render(
+			lipgloss.JoinHorizontal(lipgloss.Left,
+				labelStyle.Render("Password:"),
+				m.password.View(),
+			),
+		),
+		"\n",
+		statusStyle.Render(statusMsg),
+	)
+
+	// Wrap content inside a border
+	borderedForm := borderStyle.Render(form)
+
+	// Center logo and form in available space
+	contentHeight := lipgloss.Height(logo) + lipgloss.Height(borderedForm) + 2
+	paddingTop := (height - contentHeight) / 2
+	if paddingTop < 0 {
+		paddingTop = 0
+	}
+
+	// Combine logo and form with vertical centering
+	output := lipgloss.NewStyle().
+		MarginTop(paddingTop).
+		Render(
+			lipgloss.JoinVertical(lipgloss.Center,
+				logoStyle.Render(logo),
+				lipgloss.PlaceHorizontal(width, lipgloss.Center, borderedForm),
+			),
+		)
+
+	return output
+}