package form

import (
	"database/sql/driver"
	"fmt"
	"html/template"
	"net/http"
	"strconv"
	"strings"
	"time"
)

type Attribute struct {
	Key, Val string
}

type InputField struct {
	Name       string
	Label      string
	Type       string
	Val        string
	Is         string
	Required   bool
	Attributes []template.HTMLAttr
	Errors     []error
}

func (field *InputField) Scan(value interface{}) error {
	if value == nil {
		field.Val = ""
		return nil
	}
	switch v := value.(type) {
	case time.Time:
		if field.Type == "date" {
			field.Val = v.Format("2006-01-02")
		} else if field.Type == "time" {
			field.Val = v.Format("15:04")
		} else {
			field.Val = v.Format(time.RFC3339)
		}
	default:
		field.Val = fmt.Sprintf("%v", v)
	}
	return nil
}

func (field *InputField) Value() (driver.Value, error) {
	return field.Val, nil
}

func (field *InputField) FillValue(r *http.Request) {
	field.Val = strings.TrimSpace(r.FormValue(field.Name))
}

func (field *InputField) Integer() int {
	value, err := strconv.Atoi(field.Val)
	if err != nil {
		panic(err)
	}
	return value
}

func (field *InputField) IntegerOrNil() interface{} {
	if field.Val != "" {
		if i := field.Integer(); i > 0 {
			return i
		}
	}
	return nil
}

func (field *InputField) Float64() float64 {
	value, err := strconv.ParseFloat(field.Val, 64)
	if err != nil {
		panic(err)
	}
	return value
}

func (field *InputField) String() string {
	return field.Val
}