package tui

import (
	"fmt"

	"git.iamthefij.com/iamthefij/slog"
	"github.com/charmbracelet/bubbles/list"
	tea "github.com/charmbracelet/bubbletea"

	"git.iamthefij.com/iamthefij/imap-notes/lib"
)

type noteListItem struct {
	note *lib.Note
}

func (fi noteListItem) Title() string {
	return fi.note.Name()
}

func (fi noteListItem) Description() string {
	return "some body description"
}

func (fi noteListItem) FilterValue() string {
	return fi.note.Name()
}

type noteListModel struct {
	list           list.Model
	selectedFolder *lib.NoteFolder
	selectedNote   *lib.Note
}

func newNoteList() noteListModel {
	m := noteListModel{}

	noteItems := []list.Item{}

	m.list = list.New(noteItems, list.NewDefaultDelegate(), 0, 0)
	m.list.Title = "Notes"
	m.list.SetShowHelp(false)
	m.list.DisableQuitKeybindings()

	return m
}

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

func (m *noteListModel) SetFolder(folder *lib.NoteFolder) error {
	m.selectedFolder = folder

	noteItems := []list.Item{}

	notes, err := folder.ListNotes()
	if err != nil {
		return fmt.Errorf("failed to get notes for list view: %w", err)
	}

	for _, note := range notes {
		noteItems = append(noteItems, noteListItem{note})
	}

	m.list.SetItems(noteItems)

	return nil
}

func (m noteListModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.String() {
		case "ctrl+c", "q":
			return m, tea.Quit
		case "enter":
			noteItem, ok := m.list.SelectedItem().(noteListItem)
			if ok {
				note := noteItem.note
				// slog.Debugf("Yay! We selected note %s", note.Name)
				m.selectedNote = note

				return m, nil
			}

			slog.Fatalf("selected an unknown item?")

			return m, tea.Quit
		}

	case tea.WindowSizeMsg:
		m.list.SetSize(msg.Width, msg.Height)
	}

	var cmd tea.Cmd
	m.list, cmd = m.list.Update(msg)

	return m, cmd
}

func (m noteListModel) View() string {
	return m.list.View()
}

func LaunchNoteView() {
	p := tea.NewProgram(newFolderList(), tea.WithAltScreen())
	slog.OnErrFatalf(p.Start(), "error running TUI")
}