package main

import (
	"charmcal/mite"
	"errors"
	"fmt"
	"strconv"
	"time"

	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/huh"
)

// updateForm handles processing tea.Msg's related to form processing
func (m model) updateForm(msg tea.Msg) (tea.Model, tea.Cmd) {

	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.String() {
		case "esc":
			m.tuiMode = MODE_CAL
			return m, nil
		case "ctrl+c":
			return m, tea.Quit
		}
	}

	newForm, formCmd := m.formData.form.Update(msg)
	m.formData.form = newForm.(*huh.Form)

	if m.formData.form.State == huh.StateCompleted {
		// fmt.Printf("%#v", m.timeData.entries)
		// clientID := m.formData.form.GetString("client")
		serviceID := m.formData.form.GetString("service")
		projectID := m.formData.form.GetString("project")
		description := m.formData.form.GetString("description")
		minutes := m.formData.form.GetString("minutes")
		tracker := m.formData.form.GetBool("tracker")

		minutesInt, err1 := strconv.ParseInt(minutes, 10, 64)
		serviceIDInt, err2 := strconv.ParseInt(serviceID, 10, 64)
		projectIDInt, err3 := strconv.ParseInt(projectID, 10, 64)

		if errors.Join(err1, err2, err3) != nil {
			m.statusBarMessage = errors.Join(err1, err2, err3).Error()
			m.tuiMode = MODE_CAL
		} else {

			id, err := m.miteAPI.AddTimeEntry(m.dest.Format(time.DateOnly), int(minutesInt), description, int(projectIDInt), int(serviceIDInt))
			if err != nil {
				m.statusBarMessage = err.Error()
				m.tuiMode = MODE_CAL
			} else {
				if tracker {
					_, _, err = m.miteAPI.StartTimeTracker(id)
					if err != nil {
						m.statusBarMessage = err.Error()
						m.tuiMode = MODE_CAL
					} else {
						m.statusBarMessage = "Successfully logged time and started tracker"
						m.tuiMode = MODE_CAL
						return m, m.fetchMiteData()
					}
				} else {

					m.statusBarMessage = "Successfully logged time"
					m.tuiMode = MODE_CAL
					return m, m.fetchMiteData()
				}
			}
		}

	}

	return m, formCmd
}

func (m model) buildForm() *huh.Form {

	clOptions := []huh.Option[string]{}
	for _, cust := range m.formData.customers {
		op := miteToHuhOption(cust)
		clOptions = append(clOptions, op)
	}

	svcOptions := []huh.Option[string]{}
	for _, svc := range m.formData.services {
		op := miteToHuhOption(svc)
		svcOptions = append(svcOptions, op)
	}

	projOptions := []huh.Option[string]{
		{
			Key:   "[no project]",
			Value: "0",
		},
	}
	for _, proj := range m.formData.projects {
		op := miteToHuhOption(proj)
		projOptions = append(projOptions, op)
	}

	// cl := huh.NewSelect[string]().
	// 	Key("client").
	// 	Options(clOptions...).
	// 	Title("Client").Height(5).Value(&m.formData.selected.customer)

	sl := huh.NewSelect[string]().
		Key("service").
		Options(svcOptions...).
		Title("Service").
		Height(6)

	pl := huh.NewSelect[string]().
		Key("project").
		Title("Project").
		Options(projOptions...).
		Height(6)

	description := huh.NewText().
		Key("description").
		Title("description").
		Validate(func(s string) error {
			if s == "" {
				return errors.New("must enter a description")
			}
			return nil
		})

	defMinutes := "0"
	minutes := huh.NewInput().
		Key("minutes").
		CharLimit(5).
		Validate(
			func(s string) error {
				h, err := strconv.ParseInt(s, 10, 64)
				if err != nil {
					return err
				}
				if h < 0 {
					return errors.New("must be positive")
				}
				return err
			}).
		Title("Minutes").
		Value(&defMinutes)

	confirmTracker := huh.NewConfirm().
		Key("tracker").
		Affirmative("Yes").
		Negative("No").
		Title("Start tracker")

	form := huh.NewForm(
		huh.NewGroup(
			pl,
			sl,
			description,
		),
		huh.NewGroup(
			minutes,
			confirmTracker,
		),
	)
	return form
}

func miteToHuhOption[T mite.APIObject](i T) huh.Option[string] {
	return huh.Option[string]{
		Key:   i.GetName(),
		Value: fmt.Sprint(i.GetID()),
	}
}