From 56c7ac9d048fd36c1cae28ce656d4e00fd6ba89b Mon Sep 17 00:00:00 2001
From: Simon Vieille <simon@deblan.fr>
Date: Mon, 18 Aug 2025 09:45:38 +0200
Subject: [PATCH] feat: add json configuration

---
 form/field.go        | 28 ++++++++++++++--------------
 form/field_choice.go | 25 ++++++++++++++++++++++---
 form/form.go         | 18 +++++++++---------
 form/option.go       |  4 ++--
 4 files changed, 47 insertions(+), 28 deletions(-)

diff --git a/form/field.go b/form/field.go
index 90b5154..1a3f5e5 100644
--- a/form/field.go
+++ b/form/field.go
@@ -56,20 +56,20 @@ func FieldValidation(f *Field) bool {
 
 // Field represents a field in a form
 type Field struct {
-	Name        string
-	Widget      string
-	Data        any
-	Options     []*Option
-	Children    []*Field
-	Constraints []validation.Constraint
-	Errors      []validation.Error
-	BeforeMount func(data any) (any, error)
-	BeforeBind  func(data any) (any, error)
-	Validate    func(f *Field) bool
-	IsSlice     bool
-	IsFixedName bool
-	Form        *Form
-	Parent      *Field
+	Name        string                      `json:"name"`
+	Widget      string                      `json:"widget"`
+	Data        any                         `json:"-"`
+	Options     []*Option                   `json:"options"`
+	Children    []*Field                    `json:"children"`
+	Constraints []validation.Constraint     `json:"-"`
+	Errors      []validation.Error          `json:"-"`
+	BeforeMount func(data any) (any, error) `json:"-"`
+	BeforeBind  func(data any) (any, error) `json:"-"`
+	Validate    func(f *Field) bool         `json:"-"`
+	IsSlice     bool                        `json:"is_slice"`
+	IsFixedName bool                        `json:"is_fixed_name"`
+	Form        *Form                       `json:"-"`
+	Parent      *Field                      `json:"-"`
 }
 
 // Generates a new field with default properties
diff --git a/form/field_choice.go b/form/field_choice.go
index 5572344..70d2545 100644
--- a/form/field_choice.go
+++ b/form/field_choice.go
@@ -16,6 +16,7 @@ package form
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import (
+	"encoding/json"
 	"reflect"
 
 	"github.com/spf13/cast"
@@ -33,9 +34,9 @@ func (c Choice) Match(value string) bool {
 }
 
 type Choices struct {
-	Data         any
-	ValueBuilder func(key int, item any) string
-	LabelBuilder func(key int, item any) string
+	Data         any                            `json:"data"`
+	ValueBuilder func(key int, item any) string `json:"-"`
+	LabelBuilder func(key int, item any) string `json:"-"`
 }
 
 func (c *Choices) Match(f *Field, value string) bool {
@@ -100,6 +101,24 @@ func (c *Choices) GetChoices() []Choice {
 	return choices
 }
 
+func (c Choices) MarshalJSON() ([]byte, error) {
+	var choices []map[string]string
+
+	v := reflect.ValueOf(c.Data)
+
+	switch v.Kind() {
+	case reflect.Slice, reflect.Array, reflect.String, reflect.Map:
+		for i := 0; i < v.Len(); i++ {
+			choices = append(choices, map[string]string{
+				"value": c.ValueBuilder(i, v.Index(i).Interface()),
+				"label": c.LabelBuilder(i, v.Index(i).Interface()),
+			})
+		}
+	}
+
+	return json.Marshal(choices)
+}
+
 // Generates an instance of Choices
 func NewChoices(items any) *Choices {
 	builder := func(key int, item any) string {
diff --git a/form/form.go b/form/form.go
index 85325fa..a2dda2a 100644
--- a/form/form.go
+++ b/form/form.go
@@ -30,15 +30,15 @@ import (
 
 // Field represents a form
 type Form struct {
-	Fields       []*Field
-	GlobalFields []*Field
-	Errors       []validation.Error
-	Method       string
-	JsonRequest  bool
-	Action       string
-	Name         string
-	Options      []*Option
-	RequestData  *url.Values
+	Fields       []*Field           `json:"children"`
+	GlobalFields []*Field           `json:"-"`
+	Errors       []validation.Error `json:"-"`
+	Method       string             `json:"method"`
+	JsonRequest  bool               `json:"json_request"`
+	Action       string             `json:"action"`
+	Name         string             `json:"name"`
+	Options      []*Option          `json:"options"`
+	RequestData  *url.Values        `json:"-"`
 }
 
 // Generates a new form with default properties
diff --git a/form/option.go b/form/option.go
index 9fccd27..95eee67 100644
--- a/form/option.go
+++ b/form/option.go
@@ -18,8 +18,8 @@ import "strings"
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 type Option struct {
-	Name  string
-	Value any
+	Name  string `json:"name"`
+	Value any    `json:"value"`
 }
 
 func NewOption(name string, value any) *Option {