package example

import (
	"net/http"
	"time"

	"github.com/spf13/cast"
	"gitnet.fr/deblan/go-form/form"
	"gitnet.fr/deblan/go-form/validation"
)

type Item struct {
	Id   uint
	Name string
}

type ExampleOtherInputs struct {
	Number   float32
	Range    uint
	Mail     string
	Password string
}

type ExampleChoices struct {
	Select                 *Item
	SelectExpanded         *Item
	MultipleSelect         []Item
	MultipleSelectExpanded []Item
}

type ExampleDates struct {
	Date          *time.Time
	DateTime      *time.Time
	DateTimeLocal *time.Time
	Time          *time.Time
}

type ExampleData struct {
	Bytes    []byte
	Text     string
	Checkbox bool
	Dates    ExampleDates
	Choices  ExampleChoices
	Inputs   ExampleOtherInputs
}

func CreateDataForm() *form.Form {
	items := []Item{
		Item{Id: 1, Name: "Item 1"},
		Item{Id: 2, Name: "Item 2"},
		Item{Id: 3, Name: "Item 3"},
	}

	itemsChoices := form.NewChoices(items).
		WithValueBuilder(func(key int, item any) string {
			return cast.ToString(item.(Item).Id)
		}).
		WithLabelBuilder(func(key int, item any) string {
			return item.(Item).Name
		})

	return form.NewForm(
		form.NewFieldText("Bytes").
			WithOptions(
				form.NewOption("label", "Bytes"),
				form.NewOption("required", true),
			).
			WithBeforeMount(func(data any) (any, error) {
				return cast.ToString(data), nil
			}).
			WithBeforeBind(func(data any) (any, error) {
				return []byte(cast.ToString(data)), nil
			}).
			WithConstraints(
				validation.NewNotBlank(),
			),
		form.NewFieldTextarea("Text").
			WithOptions(
				form.NewOption("label", "Text"),
				form.NewOption("help", "Must contain 'deblan'"),
			).
			WithConstraints(
				validation.NewRegex(`deblan`),
			),
		form.NewFieldCheckbox("Checkbox").
			WithOptions(
				form.NewOption("label", "Checkbox"),
			),
		form.NewSubForm("Inputs").
			WithOptions(
				form.NewOption("label", "Inputs"),
			).
			Add(
				form.NewFieldNumber("Number").
					WithOptions(
						form.NewOption("label", "Number"),
					).
					WithConstraints(
						validation.NewRange().WithRange(1, 20),
						validation.NewIsEven(),
					),
				form.NewFieldRange("Range").
					WithOptions(
						form.NewOption("label", "Range"),
					),
				form.NewFieldMail("Mail").
					WithOptions(
						form.NewOption("label", "Mail"),
					).
					WithConstraints(
						validation.Mail{},
					),
				form.NewFieldPassword("Password").
					WithOptions(
						form.NewOption("label", "Password"),
					).
					WithConstraints(
						validation.NewLength().WithMin(10),
					),
			),
		form.NewSubForm("Dates").
			WithOptions(
				form.NewOption("label", "Dates"),
			).
			Add(
				form.NewFieldDate("Date").
					WithOptions(
						form.NewOption("label", "Date"),
					),
				form.NewFieldDatetime("DateTime").
					WithOptions(
						form.NewOption("label", "Datetime"),
					),
				form.NewFieldDatetimeLocal("DateTimeLocal").
					WithOptions(
						form.NewOption("label", "DateTime local"),
					),
				form.NewFieldTime("Time").
					WithOptions(
						form.NewOption("label", "Time"),
					),
			),
		form.NewSubForm("Choices").
			WithOptions(form.NewOption("label", "Choices")).
			Add(
				form.NewFieldChoice("Select").
					WithOptions(
						form.NewOption("choices", itemsChoices),
						form.NewOption("label", "Select"),
					).
					WithConstraints(
						validation.NewNotBlank(),
					),
				form.NewFieldChoice("SelectExpanded").
					WithOptions(
						form.NewOption("choices", itemsChoices),
						form.NewOption("label", "Select (expanded)"),
						form.NewOption("expanded", true),
					),
				form.NewFieldChoice("MultipleSelect").
					WithSlice().
					WithOptions(
						form.NewOption("choices", itemsChoices),
						form.NewOption("label", "Multiple select"),
						form.NewOption("multiple", true),
					).
					WithConstraints(
						validation.NewNotBlank(),
						validation.NewLength().WithExact(2),
					),
				form.NewFieldChoice("MultipleSelectExpanded").
					WithSlice().
					WithOptions(
						form.NewOption("choices", itemsChoices),
						form.NewOption("label", "Multiple select (expanded)"),
						form.NewOption("expanded", true),
						form.NewOption("multiple", true),
					),
			),
		form.NewFieldCsrf("_csrf_token").WithData("my-token"),
		form.NewSubmit("submit").
			WithOptions(
				form.NewOption("attr", form.Attrs{
					"class": "btn btn-primary",
				}),
			),
	).
		End().
		WithOptions(
			form.NewOption("help", "Form help"),
		).
		WithMethod(http.MethodPost).
		WithAction("/")
}