door: don't require default row in database

dist/sql/pvv_mysql.sql

@@ -39,11 +39,6 @@ CREATE TABLE motd (
 );
 
 CREATE TABLE door (
-  `time` DATETIME PRIMARY KEY,
+  `time` INTEGER PRIMARY KEY,
   `open` BOOLEAN NOT NULL
 );
-
-INSERT INTO
-  `door`(`time`, `open`)
-VALUES
-  (0, FALSE);

dist/sql/pvv_sqlite.sql

@@ -38,9 +38,7 @@ CREATE TABLE "motd" (
   "content" TEXT NOT NULL
 );
 
-CREATE TABLE "door" ("time" INTEGER PRIMARY KEY, "open" BOOLEAN);
-
-INSERT INTO
-  "door"("time", "open")
-VALUES
-  (0, FALSE);
+CREATE TABLE "door" (
+  "time" INTEGER PRIMARY KEY,
+  "open" BOOLEAN NOT NULL
+);

src/pvv/side/door.php

@@ -70,9 +70,9 @@ class Door {
   }
 
   /**
-   * @return array{time: DateTimeImmutable, open: bool}
+   * @return ?array{time: DateTimeImmutable, open: bool}
    */
-  public function getCurrent(): array {
+  public function getCurrent(): ?array {
     $query = '
       SELECT
         time,
@@ -85,6 +85,10 @@ class Door {
     $statement->execute();
     $row = $statement->fetch();
 
+    if (!$row) {
+      return null;
+    }
+
     return [
       'time' => (new DateTimeImmutable)->setTimestamp((int) $row['time']),
       'open' => (bool) $row['open'],

www/door/index.php

@@ -60,7 +60,12 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     ]);
   } else {
     // Only last entry
-    $line = (object) $door->getCurrent();
+    $line = $door->getCurrent();
+    if (is_null($line)) {
+      echo '{"status": "error", "message": "No door data"}';
+      exit;
+    }
+    $line = (object) $line;
     echo json_encode([
       'status'        => 'OK',
       'time'          => $line->time->getTimestamp(),

www/index.php

@@ -9,7 +9,16 @@ $motdfetcher = new pvv\side\MOTD($pdo);
 $motd = $motdfetcher->getMOTD();
 
 $door = new pvv\side\Door($pdo);
-$doorEntry = (object) $door->getCurrent();
+$doorEntry = $door->getCurrent();
+if (!is_null($doorEntry)) {
+  $doorEntry = (object) $doorEntry;
+} else {
+  $doorEntry = (object) [
+    'time' => new DateTimeImmutable('@0'),
+    'open' => false,
+  ];
+}
+
 if ($doorEntry->time->getTimestamp() < (time() - 60 * 30)) {
   $doorStateText = 'Ingen data fra dørsensor';
 } else {

www/spaceapi.php

@@ -9,7 +9,15 @@ $pdo = new PDO($DB_DSN, $DB_USER, $DB_PASS);
 $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 
 $door = new pvv\side\Door($pdo);
-$doorEntry = (object) $door->getCurrent();
+$doorEntry = $door->getCurrent();
+if (!is_null($doorEntry)) {
+  $doorEntry = (object) $doorEntry;
+} else {
+  $doorEntry = (object) [
+    'time' => new DateTimeImmutable('@0'),
+    'open' => false,
+  ];
+}
 
 ?>
 {