package main

import (
	"fmt"
	"gemini_site/gemlog"

	tea "github.com/charmbracelet/bubbletea"
)

type EntryListPageModel struct {
	entries      []gemlog.GemlogListEntry
	actionToTake Action
	cursor       int
}

type SelectActionToTake struct{ ActionToTake Action }

func initialEntryListPageModel() EntryListPageModel {
	return EntryListPageModel{
		cursor:       0,
		actionToTake: Read,
	}
}

func (m EntryListPageModel) Update(msg tea.Msg, active bool, ctx *context) (EntryListPageModel, tea.Cmd) {
	switch msg := msg.(type) {
	case SelectActionToTake:
		m.actionToTake = msg.ActionToTake
	case gemlog.GemLogsLoaded:
		m.entries = msg.Logs
		return m, nil
	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 "left", "h":
			cmd := func() tea.Msg {
				return SwitchPages{Page: ActionList}
			}
			return m, cmd

		case "enter", " ":
			id := m.entries[m.cursor].ID
			rev := m.entries[m.cursor].Rev
			switch m.actionToTake {
			case Delete:
				delCmd := gemlog.DeleteGemlogCMD(ctx.config, id, rev)
				loadCmd := gemlog.LoadGemlogsCMD(ctx.config)
				navCmd := func() tea.Msg {
					return SwitchPages{Page: ActionList}
				}

				return m, tea.Sequence(delCmd, loadCmd, navCmd)
			case Read:
				return m, gemlog.LoadGemlogCMD(ctx.config, id)
			}
		}
	}

	return m, nil
}

func (m EntryListPageModel) View() string {
	s := fmt.Sprintf("Which entry would you like to %s\n\n", m.actionToTake)
	for i, entry := range m.entries {
		cursor := " "
		if m.cursor == i {
			cursor = ">"
		}
		s += fmt.Sprintf("%s %s : %s\n", cursor, entry.Date, entry.Slug)
	}

	s += "\n\n Press h or left arrow to go back"
	return s
}