package svc

import (
	"regexp"
	"time"

	vi "code.30cm.net/digimon/library-go/validator"
	"github.com/go-playground/validator/v10"
	"github.com/shopspring/decimal"
)

// WithDecimalGt 是否大於等於
func WithDecimalGt() vi.Option {
	return vi.Option{
		ValidatorName: "decimalGt",
		ValidatorFunc: func(fl validator.FieldLevel) bool {
			if val, ok := fl.Field().Interface().(string); ok {
				value, err := decimal.NewFromString(val)
				if err != nil {
					return false
				}

				conditionValue, err := decimal.NewFromString(fl.Param())
				if err != nil {
					return false
				}

				return value.GreaterThan(conditionValue)
			}

			return true
		},
	}
}

// WithDecimalGte 是否大於等於
func WithDecimalGte() vi.Option {
	return vi.Option{
		ValidatorName: "decimalGte",
		ValidatorFunc: func(fl validator.FieldLevel) bool {
			if val, ok := fl.Field().Interface().(string); ok {
				value, err := decimal.NewFromString(val)
				if err != nil {
					return false
				}

				conditionValue, err := decimal.NewFromString(fl.Param())
				if err != nil {
					return false
				}

				return value.GreaterThanOrEqual(conditionValue)
			}

			return true
		},
	}
}

func WithHTTPURL() vi.Option {
	return vi.Option{
		ValidatorName: "httpurl",
		ValidatorFunc: func(fl validator.FieldLevel) bool {
			value := fl.Field().String()
			// 使用正則檢查是否以 http:// 或 https:// 開頭
			re := regexp.MustCompile(`^https?://`)

			return re.MatchString(value)
		},
	}
}

func WithRfc3339Format() vi.Option {
	return vi.Option{
		ValidatorName: "rfc3339",
		ValidatorFunc: func(fl validator.FieldLevel) bool {
			// 使用正則檢查是否以 http:// 或 https:// 開頭
			_, err := time.Parse(time.RFC3339, fl.Field().String())

			return err == nil
		},
	}
}