package tui

import (
	"fmt"
	"strconv"

	"git.skdevstudios.com/SK-Development-Studios/go-cal-tui/internal/storage"
	"github.com/charmbracelet/huh"
)

// showEventForm prompts user for new event data and calls onSubmit with the result.
func showEventForm(onSubmit func(storage.EventInput)) error {
	var title, description, year, month, day, startHour, endHour, color string

	form := huh.NewForm(
		huh.NewGroup(
			huh.NewInput().Title("Title").Value(&title),
			huh.NewInput().Title("Description").Value(&description),
			huh.NewInput().Title("Year").Value(&year),
			huh.NewInput().Title("Month").Value(&month),
			huh.NewInput().Title("Day").Value(&day),
			huh.NewInput().Title("Start Hour (0–23)").Value(&startHour),
			huh.NewInput().Title("End Hour (0–23)").Value(&endHour),
			huh.NewInput().Title("Color (e.g. 99 or #ff5733)").Value(&color),
		),
	)

	if err := form.Run(); err != nil {
		return err
	}

	yr, _ := strconv.Atoi(year)
	mo, _ := strconv.Atoi(month)
	da, _ := strconv.Atoi(day)
	sh, _ := strconv.Atoi(startHour)
	eh, _ := strconv.Atoi(endHour)

	onSubmit(storage.EventInput{
		Title:       title,
		Description: description,
		Year:        int32(yr),
		Month:       int32(mo),
		Day:         int32(da),
		StartHour:   int32(sh),
		EndHour:     int32(eh),
		Color:       color,
	})

	return nil
}

// showEditForm allows editing of mutable fields in an existing event.
func showEditForm(evt *storage.EventInput, onSubmit func(storage.EventInput)) error {
	// Convert to string for input
	endHourStr := strconv.Itoa(int(evt.EndHour))
	colorStr := evt.Color
	titleStr := evt.Title
	descStr := evt.Description

	form := huh.NewForm(
		huh.NewGroup(
			huh.NewInput().Title("Title").Value(&titleStr),
			huh.NewInput().Title("Description").Value(&descStr),
			huh.NewInput().Title("End Hour (0–23)").Value(&endHourStr),
			huh.NewInput().Title("Color (e.g. 99 or #ff5733)").Value(&colorStr),
		),
	)

	if err := form.Run(); err != nil {
		return err
	}

	endHour, err := strconv.Atoi(endHourStr)
	if err != nil {
		return err
	}

	onSubmit(storage.EventInput{
		Title:       titleStr,
		Description: descStr,
		Year:        evt.Year,
		Month:       evt.Month,
		Day:         evt.Day,
		StartHour:   evt.StartHour,
		EndHour:     int32(endHour),
		Color:       colorStr,
	})

	return nil
}

// showDeleteConfirm prompts for confirmation before deleting an event.
func showDeleteConfirm(evt *storage.EventInput, onConfirm func()) error {
	var confirm bool

	form := huh.NewForm(
		huh.NewGroup(
			huh.NewConfirm().
				Title(fmt.Sprintf("Delete event '%s' on %04d-%02d-%02d at %02d:00?", evt.Title, evt.Year, evt.Month, evt.Day, evt.StartHour)).
				Affirmative("Yes").
				Negative("No").
				Value(&confirm),
		),
	)

	if err := form.Run(); err != nil {
		return err
	}

	if confirm {
		onConfirm()
	}

	return nil
}