package ui

import (
	"fmt"

	"github.com/gdamore/tcell/v2"
)

func (a *App) inputCapture() func(event *tcell.EventKey) *tcell.EventKey {
	return func(event *tcell.EventKey) *tcell.EventKey {
		key, character := event.Key(), event.Rune()

		switch {
		case character == 'h' || key == tcell.KeyLeft:
			a.shiftColumnFocus(previous)
		case character == 'l' || key == tcell.KeyRight:
			a.shiftColumnFocus(next)
		case character == 'c':
			a.create()
		case character == 'm':
			a.move()
		case character == 'e':
			a.edit()
		case character == 'b':
			a.updateBoardMode(boardEdit)
		case key == tcell.KeyCtrlD:
			a.delete()
		case key == tcell.KeyCtrlQ:
			a.quit()
		case key == tcell.KeyESC:
			a.escape()
		case key == tcell.KeyEnter:
			a.selected()
		}

		return event
	}
}

func (a *App) create() {
	if a.mode == normal {
		a.cardForm.mode = create
		a.cardForm.updateInputFields("", "")
		a.cardForm.frame.SetTitle(" Create Card ")
		a.pages.ShowPage(cardFormPage)
		a.SetFocus(a.cardForm)
	}
}

func (a *App) move() {
	if a.mode == normal {
		a.statusSelection.cardID = a.focusedCardID()
		a.statusSelection.currentStatusID = a.focusedStatusID()
		a.updateBoardMode(selection)
	}
}

func (a *App) edit() {
	switch a.mode {
	case normal:
		a.cardForm.mode = edit

		card, ok := a.getFocusedCard()
		if !ok {
			return
		}

		a.cardForm.updateInputFields(card.Title, card.Description)
		a.cardForm.frame.SetTitle(" Edit Card ")
		a.pages.ShowPage(cardFormPage)
		a.SetFocus(a.cardForm)
	case boardEdit:
		statusName := a.focusedStatusName()
		a.statusForm.updateInputFields(statusName)
		a.statusForm.frame.SetTitle(" Edit Status Name ")
		a.pages.ShowPage(statusFormPage)
		a.SetFocus(a.statusForm)
	}
}

func (a *App) delete() {
	if a.mode == normal {
		card, ok := a.getFocusedCard()
		if !ok {
			return
		}

		text := fmt.Sprintf("Do you want to delete '%s'?", card.Title)
		a.deleteCardModal.SetText(text)
		a.pages.ShowPage(deleteCardModalPage)
		a.SetFocus(a.deleteCardModal)
	}
}

func (a *App) quit() {
	if a.mode == normal {
		a.pages.ShowPage(quitPage)
		a.SetFocus(a.quitModal)
	}
}

func (a *App) selected() {
	switch a.mode {
	case normal:
		card, ok := a.getFocusedCard()
		if !ok {
			break
		}

		status := a.focusedStatusName()
		a.cardView.setText(card.ID, card.Title, status, card.Created, card.Description)
		a.pages.ShowPage(viewPage)
		a.SetFocus(a.cardView)
	case selection:
		a.statusSelection.nextStatusID = a.focusedStatusID()
		if a.statusSelection.currentStatusID != a.statusSelection.nextStatusID {
			if err := a.statusSelection.moveCard(a.board); err != nil {
				a.statusbar.displayMessage(
					errorLevel,
					fmt.Sprintf("Failed to move card: %v", err),
				)
			} else {
				a.statusbar.displayMessage(
					infoLevel,
					"Card moved successfully.",
				)
			}
		}

		a.statusSelection = statusSelection{0, 0, 0}
		a.updateBoardMode(normal)
		a.refresh(false)
	}
}

func (a *App) escape() {
	if a.mode != normal {
		a.updateBoardMode(normal)
	}
}