feat(tfstated): implement DELETE method

cmd/tfstated/delete.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"git.adyxax.org/adyxax/tfstated/pkg/database"
+)
+
+func handleDelete(db *database.DB) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/" {
+			_ = errorResponse(w, http.StatusBadRequest,
+				fmt.Errorf("no state path provided, cannot DELETE /"))
+			return
+		}
+
+		if err := db.DeleteState(r.URL.Path); err != nil {
+			if errors.Is(err, sql.ErrNoRows) {
+				_ = errorResponse(w, http.StatusNotFound,
+					fmt.Errorf("state path not found: %s", r.URL.Path))
+			} else {
+				_ = errorResponse(w, http.StatusInternalServerError, err)
+			}
+		} else {
+			w.WriteHeader(http.StatusOK)
+		}
+	})
+}

cmd/tfstated/routes.go

@@ -12,6 +12,7 @@ func addRoutes(
 ) {
 	mux.Handle("GET /healthz", handleHealthz())
 
+	mux.Handle("DELETE /", handleDelete(db))
 	mux.Handle("GET /", handleGet(db))
 	mux.Handle("POST /", handlePost(db))
 }

pkg/database/states.go

@@ -4,6 +4,11 @@ import (
 	"database/sql"
 )
 
+func (db *DB) DeleteState(name string) error {
+	_, err := db.Exec(`DELETE FROM states WHERE name = ?;`, name)
+	return err
+}
+
 func (db *DB) GetState(name string) ([]byte, error) {
 	var encryptedData []byte
 	err := db.QueryRow(`SELECT data FROM states WHERE name = ?;`, name).Scan(&encryptedData)