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sudoscientist-go-backend/packages/blog/comments.go

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package blog
import (
"database/sql"
"encoding/json"
"fmt"
"github.com/go-chi/chi"
"github.com/go-chi/jwtauth"
"github.com/go-chi/render"
"net/http"
"time"
)
type Comment struct {
ID int `json:"id",db:"id"`
Parent string `json:"post_id",db:"parent"`
Author string `json:"author",db:"author"`
Content string `json:"content",db:"content"`
TimePublished time.Time `json:"time_published", db:"time_published"`
Modified bool `json:"modified", db:"modified"`
TimeModified time.Time `json:"last_modified", db:"last_modified"`
}
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type Comments []Comment
func getCommentById(w http.ResponseWriter, r *http.Request) {
returnMessage := ReturnMessage{}
returnMessage.Error = false
id := chi.URLParam(r, "id")
result := DB.QueryRow("SELECT id, parent, author, content, time_published, modified, last_modified FROM comments WHERE id=$1", id)
comment := Comment{}
err := result.Scan(&comment.ID, &comment.Parent, &comment.Author, &comment.Content, &comment.TimePublished, &comment.Modified, &comment.TimeModified)
if err != nil {
returnMessage.Message = "comment not found"
returnMessage.Error = true
w.WriteHeader(http.StatusBadRequest)
render.JSON(w, r, returnMessage)
return
}
w.WriteHeader(http.StatusOK)
render.JSON(w, r, comment)
return
}
func postComment(w http.ResponseWriter, r *http.Request) {
returnMessage := ReturnMessage{}
returnMessage.Error = false
newComment := &Comment{}
// basic checks
_, claims, _ := jwtauth.FromContext(r.Context())
username := claims["username"].(string)
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post_id := chi.URLParam(r, "post_id")
err := json.NewDecoder(r.Body).Decode(newComment)
if err != nil {
returnMessage.Message = "unknown error, try again later"
returnMessage.Error = true
w.WriteHeader(http.StatusBadRequest)
render.JSON(w, r, returnMessage)
return
}
if newComment.Content == "" {
returnMessage.Message = "content is required"
returnMessage.Error = true
w.WriteHeader(http.StatusBadRequest)
render.JSON(w, r, returnMessage)
return
}
c := `INSERT INTO comments (parent, author, content, time_published, modified, last_modified)
VALUES ($1, $2, $3, $4, $5, $6)
RETURNING id`
comment_id := 0
err = DB.QueryRow(c, post_id, username, newComment.Content, time.Now().UTC(), false, time.Now().UTC()).Scan(&comment_id)
if err != nil {
if err == sql.ErrNoRows {
returnMessage.Message = "something is super broken..."
returnMessage.Error = true
w.WriteHeader(http.StatusInternalServerError)
render.JSON(w, r, returnMessage)
fmt.Println(err)
return
}
returnMessage.Message = "something is super broken..."
returnMessage.Error = true
w.WriteHeader(http.StatusInternalServerError)
render.JSON(w, r, returnMessage)
fmt.Println(err)
return
}
returnMessage.Message = "comment added"
w.WriteHeader(http.StatusCreated)
render.JSON(w, r, returnMessage)
return
}
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func getCommentsByParentId(w http.ResponseWriter, r *http.Request) {
returnMessage := ReturnMessage{}
returnMessage.Error = false
post_id := chi.URLParam(r, "post_id")
search := `
SELECT id, author, content, time_published, modified, last_modified
FROM comments
WHERE parent = $1
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ORDER BY id ASC
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`
rows, err := DB.Query(search, post_id)
if err != nil {
returnMessage.Message = "something is super broken..."
returnMessage.Error = true
w.WriteHeader(http.StatusInternalServerError)
render.JSON(w, r, returnMessage)
fmt.Println(err)
return
}
defer rows.Close()
comment := Comment{}
comments := make(Comments, 0)
for rows.Next() {
if err := rows.Scan(&comment.ID, &comment.Author, &comment.Content, &comment.TimePublished, &comment.Modified, &comment.TimeModified); err != nil {
}
comments = append(comments, comment)
}
if err := rows.Err(); err != nil {
returnMessage.Message = "something is super broken..."
returnMessage.Error = true
w.WriteHeader(http.StatusInternalServerError)
render.JSON(w, r, returnMessage)
fmt.Println(err)
return
}
w.WriteHeader(http.StatusOK)
render.JSON(w, r, comments)
return
}