From bad1d140ee1a361f190332c0f782cbcab030cb95 Mon Sep 17 00:00:00 2001
From: Darius Rapalis <info@rdarius.lt>
Date: Tue, 11 Mar 2025 23:04:05 +0200
Subject: [PATCH] Delete chirps

---
 internal/database/DeleteChirpByID.sql.go | 21 +++++++++++
 main.go                                  | 45 ++++++++++++++++++++++++
 sql/queries/DeleteChirpByID.sql          |  2 ++
 3 files changed, 68 insertions(+)
 create mode 100644 internal/database/DeleteChirpByID.sql.go
 create mode 100644 sql/queries/DeleteChirpByID.sql

diff --git a/internal/database/DeleteChirpByID.sql.go b/internal/database/DeleteChirpByID.sql.go
new file mode 100644
index 0000000..4da0b59
--- /dev/null
+++ b/internal/database/DeleteChirpByID.sql.go
@@ -0,0 +1,21 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+// source: DeleteChirpByID.sql
+
+package database
+
+import (
+	"context"
+
+	"github.com/google/uuid"
+)
+
+const deleteChirpByID = `-- name: DeleteChirpByID :exec
+DELETE FROM chirps WHERE id = $1
+`
+
+func (q *Queries) DeleteChirpByID(ctx context.Context, id uuid.UUID) error {
+	_, err := q.db.ExecContext(ctx, deleteChirpByID, id)
+	return err
+}
diff --git a/main.go b/main.go
index 741b88b..abf8a32 100644
--- a/main.go
+++ b/main.go
@@ -139,6 +139,50 @@ func getChirpByIDHandler(cfg *apiConfig) http.HandlerFunc {
 	}
 }
 
+func deleteChirpByIDHandler(cfg *apiConfig) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+
+		token, err := auth.GetBearerToken(r.Header)
+		if err != nil {
+			httpResponse.JSONHandler(w, http.StatusUnauthorized, `{"error": "Unauthorized"}`)
+			return
+		}
+
+		userId, err := auth.ValidateJWT(token, cfg.secret)
+
+		_, err = cfg.db.GetUserByID(context.Background(), userId)
+		if err != nil {
+			httpResponse.JSONHandler(w, http.StatusUnauthorized, `{"error": "Unauthorized"}`)
+			return
+		}
+
+		chirpID, err := uuid.Parse(r.PathValue("chirpID"))
+		if err != nil {
+			httpResponse.JSONHandler(w, http.StatusBadRequest, `{"error": "InvalidChirpID"}`)
+			return
+		}
+
+		chirp, err := cfg.db.GetChirpByID(context.Background(), chirpID)
+		if err != nil {
+			httpResponse.JSONHandler(w, http.StatusNotFound, `{"error": "ChirpNotFound"}`)
+			return
+		}
+
+		if chirp.UserID != userId {
+			httpResponse.JSONHandler(w, http.StatusForbidden, `{"error": "Forbidden"}`)
+			return
+		}
+
+		err = cfg.db.DeleteChirpByID(context.Background(), chirp.ID)
+		if err != nil {
+			httpResponse.SomethingWentWrong(w)
+			return
+		}
+
+		httpResponse.PlainTextHandler(w, http.StatusNoContent, "")
+	}
+}
+
 func updateUserDatahandler(cfg *apiConfig) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		type parameters struct {
@@ -477,6 +521,7 @@ func main() {
 	mux.HandleFunc("POST /api/chirps", postChirpsHandler(apiCfg))
 	mux.HandleFunc("GET /api/chirps", getAllChirpsHandler(apiCfg))
 	mux.HandleFunc("GET /api/chirps/{chirpID}", getChirpByIDHandler(apiCfg))
+	mux.HandleFunc("DELETE /api/chirps/{chirpID}", deleteChirpByIDHandler(apiCfg))
 	mux.HandleFunc("PUT /api/users", updateUserDatahandler(apiCfg))
 
 	mux.HandleFunc("GET /admin/metrics", adminMetricsHandler(apiCfg))
diff --git a/sql/queries/DeleteChirpByID.sql b/sql/queries/DeleteChirpByID.sql
new file mode 100644
index 0000000..c709b15
--- /dev/null
+++ b/sql/queries/DeleteChirpByID.sql
@@ -0,0 +1,2 @@
+-- name: DeleteChirpByID :exec
+DELETE FROM chirps WHERE id = $1;
\ No newline at end of file