package handler

import (
	"encoding/json"

	"github.com/gin-gonic/gin"
)

// bindJson bind body as a map
func bindJson(c *gin.Context) map[string]interface{} {
	var jsonMap map[string]interface{}
	err := c.ShouldBindJSON(&jsonMap)
	if err != nil {
		var requestBody []byte
		_, err := c.Request.Body.Read(requestBody)
		if err != nil {
			panic(err)
		}
		RequestErr(c, requestBody)
		return nil
	}
	if jsonMap == nil || len(jsonMap) == 0 {
		RequestErr(c, map[string]interface{}{"Body": nil})
		return nil
	}
	return jsonMap
}

// bindJsonStruct bind json as a struct, and convert to map
func bindJsonStruct[T any](c *gin.Context) map[string]interface{} {
	var bindObj T
	err := c.ShouldBind(&bindObj)
	if err != nil {
		var requestBody []byte
		_, err := c.Request.Body.Read(requestBody)
		if err != nil {
			panic(err)
		}
		RequestErr(c, requestBody)
		return nil
	}
	jsonStr, _ := json.Marshal(bindObj)
	var jsonMap map[string]interface{}
	_ = json.Unmarshal(jsonStr, &jsonMap)
	if jsonMap == nil || len(jsonMap) == 0 {
		return nil
	}
	return jsonMap
}

func bindQuery(c *gin.Context) map[string]interface{} {
	jsonMap := map[string]interface{}{}
	queries := c.Request.URL.Query()
	for k := range queries {
		jsonMap[k] = c.Query(k)
	}
	return jsonMap
}