package main

import (
	"fmt"
	"github.com/gookit/validate"
)

type Permission struct {
	UserData `json:",inline" validate:"required_if:Type,give"`
	Type     string `json:"type" validate:"required|in:give,remove"`
	Access   string `json:"access" validate:"required_if:Type,remove"`
}

type UserData struct {
	NameField   `json:",inline"`
	BranchField `json:",inline"`
}

type NameField struct {
	Name string `json:"name" validate:"required|max_len:5000"`
}

type BranchField struct {
	Branch string `json:"branch" validate:"required|min_len:32|max_len:32"`
}

func main() {
	// this should fail. UserData is required if type is give
	perm1 := Permission{
		UserData: UserData{},
		Type:     "give",
	}

	val1 := validate.Struct(perm1)
	val1.StopOnError = false
	if !val1.Validate() {
		// and it fails
		fmt.Println(val1.Errors.All())
	}
	fmt.Println()
	fmt.Println()
	fmt.Println()

	// This should not need UserData
	perm2 := Permission{
		Type:   "remove",
		Access: "change_types",
	}
	val2 := validate.Struct(&perm2)
	val2.StopOnError = false
	if !val2.Validate() {
		// but its asked for
		fmt.Println(val2.Errors.All())
	}
}