package iterate

import (
  "math/big"

  nativemetadata "github.com/samchon/typia/packages/typia/native/core/schemas/metadata"
)

func json_schema_constant(constant *nativemetadata.MetadataConstant) []JsonSchema {
  output := []JsonSchema{}
  for _, value := range constant.Values {
    schemas := json_schema_plugin(struct {
      schema JsonSchema
      tags   [][]nativemetadata.IMetadataTypeTag
    }{
      schema: JsonSchema{
        "const":       json_schema_constant_value(value.Value),
        "title":       json_schema_title(json_schema_constant_props(value)),
        "description": json_schema_description(json_schema_constant_props(value)),
      },
      tags: value.Tags,
    })
    output = append(output, schemas...)
  }
  return output
}

func json_schema_constant_props(value *nativemetadata.MetadataConstantValue) struct {
  description *string
  jsDocTags   []nativemetadata.IJsDocTagInfo
} {
  return struct {
    description *string
    jsDocTags   []nativemetadata.IJsDocTagInfo
  }{
    description: value.Description,
    jsDocTags:   value.JsDocTags,
  }
}

func json_schema_constant_value(value any) any {
  switch v := value.(type) {
  case big.Int:
    return float64(v.Int64())
  case *big.Int:
    if v == nil {
      return nil
    }
    return float64(v.Int64())
  default:
    return value
  }
}