package main

import (
	"fmt"
	"os"

	"github.com/charmbracelet/bubbles/list"
	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/huh"
	"periodic/prddeploy/commands"
)

type appState int

const (
	stateList appState = iota
	stateForm
)

type item string

func (i item) FilterValue() string { return string(i) }
func (i item) Title() string       { return string(i) }
func (i item) Description() string { return "" }

type model struct {
	list   list.Model
	form   *huh.Form
	state  appState
	choice int

	RemoteCommand       string
	PrivateKeyFile      string
	Username            string
	Host                string
	LocalFilepath       string
	DestinationFilepath string
}

func (m model) DebugState() {
	fmt.Printf("REMOTE COMMAND: %s\n", m.RemoteCommand)
	fmt.Printf("PRIVATE KEY FILE: %s\n", m.PrivateKeyFile)
	fmt.Printf("USERNAME: %s\n", m.Username)
	fmt.Printf("HOST: %s\n", m.Host)
	fmt.Printf("LOCAL FILEPATH: %s\n", m.LocalFilepath)
	fmt.Printf("DESTINATION FILEPATH: %s\n", m.DestinationFilepath)
}

func (m *model) ReadForm() {
	m.RemoteCommand = m.form.GetString("remote_command")
	m.PrivateKeyFile = m.form.GetString("private_key_file")
	m.Username = m.form.GetString("username")
	m.Host = m.form.GetString("host")
	m.LocalFilepath = m.form.GetString("local_filepath")
	m.DestinationFilepath = m.form.GetString("destination_filepath")
}

func newModel() model {
	items := []list.Item{
		item("Run Command"),
		item("Upload File"),
	}
	l := list.New(items, list.NewDefaultDelegate(), 80, 20)
	l.Title = "prddeploy"
	return model{list: l, state: stateList}
}

func (m model) Init() tea.Cmd {
	return nil
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch m.state {
	case stateList:
		switch msg := msg.(type) {
		case tea.WindowSizeMsg:
			m.list.SetSize(msg.Width, msg.Height)
		case tea.KeyMsg:
			if msg.String() == "enter" {
				m.choice = m.list.Index()
				m.state = stateForm
				if m.choice == 0 {
					m.form = huh.NewForm(
						huh.NewGroup(
							huh.NewInput().Title("Remote Command").Key("remote_command").Value(&m.RemoteCommand),
							huh.NewInput().Title("Private Key File").Key("private_key_file").Value(&m.PrivateKeyFile),
							huh.NewInput().Title("Username").Key("username").Value(&m.Username),
							huh.NewInput().Title("Host").Key("host").Value(&m.Host),
						),
					)
				} else {
					m.form = huh.NewForm(
						huh.NewGroup(
							huh.NewInput().Title("Local Filepath").Key("local_filepath").Value(&m.LocalFilepath),
							huh.NewInput().Title("Destination Filepath").Key("destination_filepath").Value(&m.DestinationFilepath),
							huh.NewInput().Title("Private Key File").Key("private_key_file").Value(&m.PrivateKeyFile),
							huh.NewInput().Title("Username").Key("username").Value(&m.Username),
							huh.NewInput().Title("Host").Key("host").Value(&m.Host),
						),
					)
				}
				return m, m.form.Init()
			}
		}
		var cmd tea.Cmd
		m.list, cmd = m.list.Update(msg)
		return m, cmd

	case stateForm:
		form, cmd := m.form.Update(msg)
		if f, ok := form.(*huh.Form); ok {
			m.form = f
		}
		if m.form.State == huh.StateCompleted {
			m.ReadForm()
			return m, tea.Quit
		}
		if m.form.State == huh.StateAborted {
			m.ReadForm()
			return m, tea.Quit
		}
		return m, cmd
	}

	return m, nil
}

func (m model) View() string {
	switch m.state {
	case stateList:
		return m.list.View()
	case stateForm:
		return m.form.View()
	}
	return ""
}

func main() {
	p := tea.NewProgram(newModel(), tea.WithAltScreen())
	result, err := p.Run()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error running program: %v\n", err)
		os.Exit(1)
	}

	m, ok := result.(model)
	if !ok || m.form == nil || m.form.State != huh.StateCompleted {
		return
	}

	m.DebugState()

	if m.choice == 0 {
		commands.RunCommand(commands.RunCommandArgs{
			RemoteCommand:  m.RemoteCommand,
			PrivateKeyFile: m.PrivateKeyFile,
			Username:       m.Username,
			Host:           m.Host,
		})
	} else {
		commands.UploadFile(commands.UploadFileArgs{
			LocalFilepath:       m.LocalFilepath,
			DestinationFilepath: m.DestinationFilepath,
			PrivateKeyFile:      m.PrivateKeyFile,
			Username:            m.Username,
			Host:                m.Host,
		})
	}
}