package gui

import (
	"gitea.tyrel.dev/tyrel/itor/models"
	"github.com/charmbracelet/bubbles/list"
	"github.com/charmbracelet/bubbles/textinput"
	"reflect"
	"sort"
)

type model struct {
	deck []models.Card // items on the to-do list

	selectCardIndex int              // which to-do list item our selectCardIndex is pointing at
	selected        map[int]struct{} // which to-do items are selected
	selectList      list.Model

	createInputs      []textinput.Model // Inputs for front and back, is an array because we change position by an index
	createdInputIndex int               // holds an index for which input is active editing in create mode

	drawSeen   bool
	drawCardId string

	mode Mode
	err  error
}

/// returns an int slice of the selected card indexes, sorted
func (m *model) selectedCardIndexes() []int {
	var keys []int
	for _, key := range reflect.ValueOf(m.selected).MapKeys() {
		keys = append(keys, int(key.Int()))
	}
	sort.Ints(keys)
	return keys
}

/// Returns a card with matching drawCardId
func (m *model) selectedCard() models.Card {
	for _, card := range m.deck {
		if card.Id == m.drawCardId {
			return card
		}
	}
	return models.Card{
		Front: "ERROR",
		Back:  "ERROR",
		Id:    "-1",
	}
}

func initialModel() model {
	front := textinput.New()
	front.Placeholder = "Front..."
	front.Focus()
	front.CharLimit = 256
	front.Width = 80

	back := textinput.New()
	back.Placeholder = "Back..."
	back.CharLimit = 256
	back.Width = 80

	deck := []models.Card{
		models.NewCard("Oui, je parle français.", "Yes, I speak French."),
		models.NewCard("Non, je ne parle pas français.", "No, I don’t speak French."),
		models.NewCard("Merci beaucoup.", "Thank you very much."),
		models.NewCard("Je mange le pain.", "I eat the bread."),
		models.NewCard("Tu manges la salade.", "You seat the salad."),
		models.NewCard("Vous mangez la pizza.", "You eat the pizza."),
		models.NewCard("Le garçon chante.", "The boy sings."),
		models.NewCard("La fille nage.", "The girl swims."),
		models.NewCard("Les enfants chantent.", "The children sing."),
		models.NewCard("Un garçon écrit.", "A boy writes."),
		models.NewCard("Une fille dort.", "A girl sleeps."),
		models.NewCard("Des enfant étudient.", "Some kids study."),
		models.NewCard("Je le/la mange.", "I eat it."),
		models.NewCard("Je les mange.", "I eat them."),
		models.NewCard("Marc et Sylvie.", "Marc and Sylvie."),
		models.NewCard("Il aime Sylvie mais il est trop timide.", "He likes Sylvie but he’s ),too shy."),
	}

	var items []list.Item

	for _, card := range deck {
		items = append(items, card)
	}

	selectedList := list.New(items, itemDelegate{}, 80, 8)
	selectedList.Title = "Card selection"
	selectedList.SetShowStatusBar(false)
	selectedList.SetFilteringEnabled(false)
	selectedList.SetShowHelp(false)
	selectedList.SetFilteringEnabled(false)
	selectedList.Styles.Title = titleStyle
	selectedList.Styles.PaginationStyle = paginationStyle
	selectedList.Styles.HelpStyle = helpStyle

	return model{
		deck:         deck,
		selectList:   selectedList,
		createInputs: []textinput.Model{front, back},
		selected:     make(map[int]struct{}),
		mode:         Select,
	}
}