81 lines
2.0 KiB
Go
81 lines
2.0 KiB
Go
// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package validator
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import "fmt"
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// Min validates that a number is at least the specified minimum value.
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func Min(min int) ValidatorFunc {
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return func(value any) *ValidationError {
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actualValue, isNil := dereferenceValue(value)
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if isNil {
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return nil
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}
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var num int
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switch v := actualValue.(type) {
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case int:
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num = v
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case int32:
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num = int(v)
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case int64:
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num = int(v)
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default:
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return newValidationError(ErrorCodeInvalidFormat, "value must be a number")
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}
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if num < min {
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return newValidationError(
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ErrorCodeOutOfRange,
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fmt.Sprintf("must be at least %d", min),
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)
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}
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return nil
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}
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}
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// Max validates that a number does not exceed the specified maximum value.
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func Max(max int) ValidatorFunc {
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return func(value any) *ValidationError {
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actualValue, isNil := dereferenceValue(value)
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if isNil {
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return nil
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}
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var num int
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switch v := actualValue.(type) {
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case int:
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num = v
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case int32:
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num = int(v)
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case int64:
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num = int(v)
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default:
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return newValidationError(ErrorCodeInvalidFormat, "value must be a number")
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}
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if num > max {
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return newValidationError(
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ErrorCodeOutOfRange,
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fmt.Sprintf("must be at most %d", max),
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)
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}
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return nil
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}
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}
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