package controller

import (
	"bbs-backend/api/reply"
	"bbs-backend/api/request"
	"bbs-backend/common/errcode"
	"bbs-backend/common/response"
	"bbs-backend/logic/appservice"
	"github.com/gin-gonic/gin"
	"net/http"
	"strconv"
)

func CreatePost(c *gin.Context) {
	var req request.CreatePostRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.Error(c, http.StatusBadRequest, errcode.ErrBadRequest)
		return
	}

	post, err := appservice.CreatePost(req)
	if err != nil {
		response.Error(c, http.StatusInternalServerError, errcode.ErrInternalServerError)
		return
	}

	response.Success(c, reply.CreatePostReply{
		ID:      post.ID,
		Title:   post.Title,
		Content: post.Content,
	})
}

func GetPost(c *gin.Context) {
	postID, err := strconv.ParseUint(c.Param("id"), 10, 64)
	if err != nil {
		response.Error(c, http.StatusBadRequest, errcode.ErrBadRequest)
		return
	}

	post, err := appservice.GetPost(uint(postID))
	if err != nil {
		switch err {
		case errcode.ErrPostNotFound:
			response.Error(c, http.StatusNotFound, errcode.ErrPostNotFound)
		default:
			response.Error(c, http.StatusInternalServerError, errcode.ErrInternalServerError)
		}
		return
	}

	response.Success(c, reply.GetPostReply{
		ID:      post.ID,
		Title:   post.Title,
		Content: post.Content,
		Author:  post.Author.Username,
	})
}

func GetPosts(c *gin.Context) {
	posts, err := appservice.GetPosts()
	if err != nil {
		response.Error(c, http.StatusInternalServerError, errcode.ErrInternalServerError)
		return
	}

	var postReplies []reply.GetPostReply
	for _, post := range posts {
		postReplies = append(postReplies, reply.GetPostReply{
			ID:      post.ID,
			Title:   post.Title,
			Content: post.Content,
			Author:  post.Author.Username,
		})
	}

	response.Success(c, reply.GetPostsReply{
		Posts: postReplies,
	})
}