package main

import (
	"fmt"
	"time"

	"github.com/gookit/validate"
)

// UserForm struct
type UserForm struct {
	Name     string    `validate:"required|min_len:7" message:"required:{field} is required" label:"User Name"`
	Email    string    `validate:"email" message:"email is invalid" label:"User Email"`
	Age      int       `validate:"required|int|min:1|max:99" message:"int:age must int|min:age min value is 1"`
	CreateAt int       `validate:"min:1"`
	Safe     int       `validate:"-"`
	UpdateAt time.Time `validate:"required" message:"update time is required"`
	Code     string    `validate:"customValidator"`
	// ExtInfo nested struct
	ExtInfo struct{
		Homepage string `validate:"required" label:"Home Page"`
		CityName string
	} `validate:"required" label:"Home Page"`
}

// CustomValidator custom validator in the source struct.
func (f UserForm) CustomValidator(val string) bool {
	return len(val) == 4
}

package main

import (
	"fmt"
	"time"

	"github.com/gookit/validate"
)

// UserForm struct
type UserForm struct {
	Name     string    `validate:"required|min_len:7"`
	Email    string    `validate:"email"`
	Age      int       `validate:"required|int|min:1|max:99"`
	CreateAt int       `validate:"min:1"`
	Safe     int       `validate:"-"`
	UpdateAt time.Time `validate:"required"`
	Code     string    `validate:"customValidator"`
	// ExtInfo nested struct
	ExtInfo struct{
		Homepage string `validate:"required"`
		CityName string
	} `validate:"required"`
}

// CustomValidator custom validator in the source struct.
func (f UserForm) CustomValidator(val string) bool {
	return len(val) == 4
}

// ConfigValidation config the Validation
// eg:
// - define validate scenes
func (f UserForm) ConfigValidation(v *validate.Validation) {
	v.WithScenes(validate.SValues{
		"add":    []string{"ExtInfo.Homepage", "Name", "Code"},
		"update": []string{"ExtInfo.CityName", "Name"},
	})
}

// Messages you can custom validator error messages. 
func (f UserForm) Messages() map[string]string {
	return validate.MS{
		"required": "oh! the {field} is required",
		"email": "email is invalid",
		"Name.required": "message for special field",
		"Age.int": "age must int",
		"Age.min": "age min value is 1",
	}
}

// Translates you can custom field translates. 
func (f UserForm) Translates() map[string]string {
	return validate.MS{
		"Name": "User Name",
		"Email": "User Email",
		"ExtInfo.Homepage": "Home Page",
	}
}

package main

import (
  "fmt"

  "github.com/gookit/validate"
)

func main() {
	u := &UserForm{
		Name: "inhere",
	}
	
	v := validate.Struct(u)
	// v := validate.New(u)

	if v.Validate() { // validate ok
		// do something ...
	} else {
		fmt.Println(v.Errors) // all error messages
		fmt.Println(v.Errors.One()) // returns a random error message text
		fmt.Println(v.Errors.OneError()) // returns a random error
		fmt.Println(v.Errors.Field("Name")) // returns error messages of the field 
	}
}

package main

import (
"fmt"

"github.com/gookit/validate"
)

func main()  {
	m := map[string]any{
		"name":  "inhere",
		"age":   100,
		"oldSt": 1,
		"newSt": 2,
		"email": "some@email.com",
		"tags": []string{"go", "php", "java"},
	}

	v := validate.Map(m)
	// v := validate.New(m)
	v.AddRule("name", "required")
	v.AddRule("name", "minLen", 7)
	v.AddRule("age", "max", 99)
	v.AddRule("age", "min", 1)
	v.AddRule("email", "email")
	
	// can also
	v.StringRule("age", "required|int|min:1|max:99")
	v.StringRule("name", "required|minLen:7")
	v.StringRule("tags", "required|slice|minlen:1")
	// feat: support check sub-item in slice
	v.StringRule("tags.*", "required|string|min_len:7")

	// v.WithScenes(map[string]string{
	//	 "create": []string{"name", "email"},
	//	 "update": []string{"name"},
	// })
	
	if v.Validate() { // validate ok
		safeData := v.SafeData()
		// do something ...
	} else {
		fmt.Println(v.Errors) // all error messages
		fmt.Println(v.Errors.One()) // returns a random error message text
	}
}

package main

import (
	"fmt"
	"net/http"
	"time"

	"github.com/gookit/validate"
)

// UserForm struct
type UserForm struct {
	Name     string
	Email    string
	Age      int
	CreateAt int
	Safe     int
	UpdateAt time.Time
	Code     string
}

func main()  {
	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		data, err := validate.FromRequest(r)
		if err != nil {
			panic(err)
		}

		v := data.Create()
		// setting rules
		v.FilterRule("age", "int") // convert value to int
		
		v.AddRule("name", "required")
		v.AddRule("name", "minLen", 7)
		v.AddRule("age", "max", 99)
		v.StringRule("code", `required|regex:\d{4,6}`)

		if v.Validate() { // validate ok
			// safeData := v.SafeData()
			userForm := &UserForm{}
			v.BindSafeData(userForm)

			// do something ...
			fmt.Println(userForm.Name)
		} else {
			fmt.Println(v.Errors) // all error messages
			fmt.Println(v.Errors.One()) // returns a random error message text
		}
	})

	http.ListenAndServe(":8090", handler)
}

d := FromMap(map[string]any{"key": "val"})
v := d.Validation()

// do validating
if v.Validate() {
	return nil
}

// get errors
es := v.Errors

// check
es.Empty() // bool

// returns an random error, if no error returns nil
fmt.Println(v.Errors.OneError())
fmt.Println(v.Errors.ErrOrNil())

fmt.Println(v.Errors) // all error messages
fmt.Println(v.Errors.One()) // returns a random error message text
fmt.Println(v.Errors.Field("Name")) // returns error messages of the field 

// GlobalOption settings for validate
type GlobalOption struct {
	// FilterTag name in the struct tags.
	//
	// default: filter
	FilterTag string
	// ValidateTag in the struct tags.
	//
	// default: validate
	ValidateTag string
	// FieldTag the output field name in the struct tags.
	// it as placeholder on error message.
	//
	// default: json
	FieldTag string
	// LabelTag the display name in the struct tags.
	// use for define field translate name on error.
	//
	// default: label
	LabelTag string
	// MessageTag define error message for the field.
	//
	// default: message
	MessageTag string
	// StopOnError If true: An error occurs, it will cease to continue to verify
	StopOnError bool
	// SkipOnEmpty Skip check on field not exist or value is empty
	SkipOnEmpty bool
	// UpdateSource Whether to update source field value, useful for struct validate
	UpdateSource bool
	// CheckDefault Whether to validate the default value set by the user
	CheckDefault bool
	// CheckZero Whether validate the default zero value. (intX,uintX: 0, string: "")
	CheckZero bool
	// CheckSubOnParentMarked True: only collect sub-struct rule on current field has rule.
	CheckSubOnParentMarked bool
	// ValidatePrivateFields Whether to validate private fields or not, especially when inheriting other other structs.
	//
	//  type foo struct {
	//	  Field int `json:"field" validate:"required"`
	//  }
	//  type bar struct {
	//    foo // <-- validate this field
	//    Field2 int `json:"field2" validate:"required"`
	//  }
	//
	// default: false
	ValidatePrivateFields bool
}

// change global opts
validate.Config(func(opt *validate.GlobalOption) {
	opt.StopOnError = false
	opt.SkipOnEmpty = false
})

type foo struct {
	somefield int
}

type Bar struct {
	foo
	SomeOtherField string
}

validate.Config(func(opt *validate.GlobalOption) {
	opt.ValidatePrivateFields = true
})

import "github.com/gookit/validate/locales/zhcn"

// for all Validation.
// NOTICE: must be registered before on validate.New(), it only need call at once.
zhcn.RegisterGlobal()

// ... ...

v := validate.New()

// only for current Validation
zhcn.Register(v)

validate.AddGlobalMessages(map[string]string{
    "minLength": "OO! {field} min length is %d",
})

v := validate.New(map[string]any{
    "name": "inhere",
})
v.StringRule("name", "required|string|minLen:7|maxLen:15")

v.AddMessages(map[string]string{
    "minLength": "OO! {field} min length is %d",
    "name.minLen": "OO! username min length is %d",
})

type UserForm struct {
    Name  string `validate:"required|minLen:7" label:"User Name"`
    Email string `validate:"email" message:"email is invalid" label:"User Email"`
}

// Messages you can custom validator error messages. 
func (f UserForm) Messages() map[string]string {
	return validate.MS{
		"required": "oh! the {field} is required",
		"Name.required": "message for special field",
	}
}

validate.AddValidator("myCheck0", func(val any) bool {
	// do validate val ...
	return true
})
validate.AddValidators(validate.M{
	"myCheck1": func(val any) bool {
		// do validate val ...
		return true
	},
})

v := validate.Struct(u)
v.AddValidator("myFunc3", func(val any) bool {
	// do validate val ...
	return true
})
v.AddValidators(validate.M{
	"myFunc4": func(val any) bool {
		// do validate val ...
		return true
	},
})

package main

import "github.com/gookit/validate"

func init() {
	validate.AddFilter("myToIntFilter0", func(val any) int {
		// do filtering val ...
		return 1
	})
	validate.AddFilters(validate.M{
		"myToIntFilter1": func(val any) (int, error) {
			// do filtering val ...
			return 1, nil
		},
	})
}

package main

import "github.com/gookit/validate"

func main() {
	v := validate.New(&someStrcut{})

	v.AddFilter("myToIntFilter0", func(val any) int {
		// do filtering val ...
		return 1
	})
	v.AddFilters(validate.M{
		"myToIntFilter1": func(val any) (int, error) {
			// do filtering val ...
			return 1, nil
		},
	})
}

	type Data struct {
		Age  int    `validate:"required_custom" message:"age is required"`
		Name string `validate:"required"`
	}

	v := validate.New(&Data{
		Name: "tom",
		Age:  0,
	})

	v.AddValidator("required_custom", func(val any) bool {
		// do check value
		return false
	})

	ok := v.Validate()
	assert.False(t, ok)

package main
import (
    "github.com/gin-gonic/gin/binding"
    "github.com/gookit/validate"
)

// implements the binding.StructValidator
type customValidator struct {}

func (c *customValidator) ValidateStruct(ptr any) error {
    v := validate.Struct(ptr)
    v.Validate() // do validating
    
    if v.Errors.Empty() {
	return nil
    }

    return v.Errors
}

func (c *customValidator) Engine() any {
    return nil
}

func main()  {
	// ...

    // after init gin, set custom validator
    binding.Validator = &customValidator{}
}