package ui

import (
	"fmt"

	tea "github.com/charmbracelet/bubbletea"
)

type Action string

const (
	Write  Action = "write"
	Read   Action = "read"
	Edit   Action = "edit"
	Delete Action = "delete"
)

var actions = []Action{Write, Read, Edit, Delete}

type ActionListPageModel struct {
	cursor int
}

func initialActionListPageModel() ActionListPageModel {
	return ActionListPageModel{
		cursor: 0,
	}
}

func (m ActionListPageModel) InitActionListPage() tea.Cmd {
	return nil
}

func (m ActionListPageModel) Update(msg tea.Msg, active bool, ctx *context) (ActionListPageModel, tea.Cmd) {
	switch msg := msg.(type) {
	case tea.KeyMsg:
		if !active {
			return m, nil
		}
		switch msg.String() {
		case "up", "k":
			if m.cursor > 0 {
				m.cursor--
			}
		case "down", "j":
			if m.cursor < len(actions)-1 {
				m.cursor++
			}
		case "enter", " ", "l":
			action := actions[m.cursor]
			switch action {
			case Write:
				return m, WritePostCMD(ctx.config)
			case Read, Delete, Edit:
				switchPageCmd := func() tea.Msg {
					return SwitchPages{Page: EntryList}
				}
				actionToTakeCmd := func() tea.Msg {
					return SelectActionToTake{ActionToTake: action}
				}
				loadGemLogsCmd := LoadGemlogsCMD(ctx.config)
				return m, tea.Batch(switchPageCmd, loadGemLogsCmd, actionToTakeCmd)
			}
		}
	}

	return m, nil
}

func (m ActionListPageModel) View() string {
	s := "Welcome to gemlog cli!\n\nWhat post action would you like to take?\n\n"
	for i, action := range actions {
		cursor := " "
		if m.cursor == i {
			cursor = ">"
		}
		s += fmt.Sprintf("%s %s\n", cursor, action)
	}
	return s
}