package handlers

import (
	"encoding/json"
	"io"
	"io/ioutil"
	"net/http"

	"git.cosysda.de/HuskyTeufel/Hochzeit/planner"
	"github.com/gin-gonic/gin"
	"github.com/jinzhu/gorm"
)

type EnvHandler struct {
	DB *gorm.DB
}

func (e *EnvHandler) GetBesucherListHandler(c *gin.Context) {
	c.JSON(http.StatusOK, planner.Get(e.DB))
}

func (e *EnvHandler) AddBesucherHandler(c *gin.Context) {
	besucherItem, statusCode, err := convertHTTPBodyToBesucher(c.Request.Body)
	if err != nil {
		c.JSON(statusCode, err)
		return
	}

	c.JSON(statusCode, gin.H{"id": planner.Add(e.DB, besucherItem)})
}

func (e *EnvHandler) DeleteBesucherHandler(c *gin.Context) {

}

func (e *EnvHandler) ComeBesucherHandler(c *gin.Context) {

}

func convertHTTPBodyToBesucher(httpBody io.ReadCloser) (planner.Besucher, int, error) {
	body, err := ioutil.ReadAll(httpBody)
	if err != nil {
		return planner.Besucher{}, http.StatusInternalServerError, err
	}
	defer httpBody.Close()
	return convertJSONBodyToBesucher(body)
}

func convertJSONBodyToBesucher(jsonBody []byte) (planner.Besucher, int, error) {
	var besucherItem planner.Besucher
	err := json.Unmarshal(jsonBody, &besucherItem)
	if err != nil {
		return planner.Besucher{}, http.StatusBadRequest, err
	}
	return besucherItem, http.StatusOK, nil
}