/*
* Author: RSK World
* Email: help@rskworld.in / support@rskworld.in
* Website: https://rskworld.in/contact.php
* Year: 2026
*/

package validation

import (
	"testing"

	"github.com/stretchr/testify/assert"
)

type TestStruct struct {
	Name  string `validate:"required,min=2,max=10"`
	Email string `validate:"required,email"`
	Age   int    `validate:"gte=18"`
}

func TestValidateStruct(t *testing.T) {
	tests := []struct {
		name      string
		input     TestStruct
		expectErr bool
	}{
		{
			name: "Valid struct",
			input: TestStruct{
				Name:  "John Doe",
				Email: "john@example.com",
				Age:   25,
			},
			expectErr: false,
		},
		{
			name: "Missing required field",
			input: TestStruct{
				Email: "john@example.com",
				Age:   25,
			},
			expectErr: true,
		},
		{
			name: "Invalid email",
			input: TestStruct{
				Name:  "John Doe",
				Email: "invalid-email",
				Age:   25,
			},
			expectErr: true,
		},
		{
			name: "Name too short",
			input: TestStruct{
				Name:  "J",
				Email: "john@example.com",
				Age:   25,
			},
			expectErr: true,
		},
		{
			name: "Age too low",
			input: TestStruct{
				Name:  "John Doe",
				Email: "john@example.com",
				Age:   16,
			},
			expectErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := ValidateStruct(tt.input)
			if tt.expectErr {
				assert.Error(t, err)
			} else {
				assert.NoError(t, err)
			}
		})
	}
}

func TestFormatValidationError(t *testing.T) {
	// This function is tested indirectly through ValidateStruct
	// but we can test the error formatting logic
	err := ValidateStruct(TestStruct{Name: ""})
	assert.Error(t, err)
	assert.Contains(t, err.Error(), "required")
}