package blog

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strconv"

	"git.schreifuchs.ch/schreifuchs/ng-blog/backend/model"
	"github.com/gorilla/mux"
)

func (s Service) SavePost(w http.ResponseWriter, r *http.Request) {
	var post model.Post
	if err := json.NewDecoder(r.Body).Decode(&post); err != nil {
		w.WriteHeader(http.StatusBadRequest)
		fmt.Fprint(w, err.Error())
		return
	}

	if err := s.db.Save(&post).Error; err != nil {
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, err.Error())
	}

	json.NewEncoder(w).Encode(&post)
	w.WriteHeader(http.StatusOK)
}

func (s Service) GetAllPosts(w http.ResponseWriter, r *http.Request) {
	var posts []model.Post

	if err := s.db.Preload("Comments").Order("created_at DESC").Find(&posts).Error; err != nil {
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, err.Error())
		return
	}

	json.NewEncoder(w).Encode(&posts)
	w.WriteHeader(http.StatusOK)
}

func (s Service) DeletePost(w http.ResponseWriter, r *http.Request) {
	idStr, ok := mux.Vars(r)["postID"]
	if !ok {
		w.WriteHeader(http.StatusNotFound)
		return
	}
	id, err := strconv.Atoi(idStr)
	if err != nil {
		w.WriteHeader(http.StatusNotFound)
		return
	}

	err = s.db.Delete(&model.Post{}, id).Error
	if err != nil {
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, err.Error())
	}
	w.WriteHeader(http.StatusNoContent)
}