feat: automatic db creation and migration

backend-php/.gitignore

@@ -1,4 +1,6 @@
 api.lock
 _api.lock
 
-data.db
+data.db
+dist
+k-api.updates.php

backend-php/admin_api.php

@@ -13,7 +13,7 @@ function db()
 };
 
 
-function relativePathToUrl($rel)
+function relativePathToUrl(string $rel)
 {
     $parts = explode('/', dirname($_SERVER['SCRIPT_NAME']) . '/' . $rel);
     $norm = [];
@@ -37,7 +37,7 @@ function FastDBReq(PDO $db, string $sql, array $params = []): array
     }
 }
 
-function Login($req)
+function Login(mixed $req)
 {
     return isset($req->data['pass']) && $req->data['pass'] == ADMIN_PASS;
 }
@@ -46,7 +46,7 @@ CreateApi(function ($api) {
     $api->on('/', 'GET', function ($req) {
         return 'hi';
     });
-    $api->on('/phpliteadmin', 'GET', function ($req) {
+    $api->on('/phpliteadmin', 'GET', function () {
         header('Location:  ./adm/phpliteadmin.php');
         return "";
     });

backend-php/api.php

@@ -99,6 +99,8 @@ CreateApi(function ($api) {
         die($cnt);
     }
 
+    $api->useUpdates(db());
+
     $api->on('/', 'GET', function () {
         return 'dengi';
     });

backend-php/bundle.sh

@@ -0,0 +1,23 @@
+set -e
+# copy only nessesary files
+
+echo "Copying files..."
+mkdir -p dist
+cp -r *.php sql-updates/ adm/ dist/
+
+set +e
+echo "Downloading phpLiteAdmin"
+wget -nc https://bitbucket.org/phpliteadmin/public/downloads/phpLiteAdmin_v1-9-8-2.zip
+unzip phpLiteAdmin_v1-9-8-2.zip phpliteadmin.php
+mv phpliteadmin.php dist/adm
+
+echo "Cleaning up"
+
+rm -f phpLiteAdmin_v1-9-8-2.zip 
+set -e
+rm -f dist/k-api.updates-status.php
+
+echo "
+
+
+Done."

backend-php/k-api.php

@@ -1,4 +1,6 @@
 <?php
+const UPDATES_STATUS_FILE = "k-api.updates-status.php";
+const SQL_UPDATES_FOLDER = "./sql-updates";
 
 /** @param callable(_K_Api): void $apiFun */
 function CreateApi(callable $apiFun, bool $devmode = false)
@@ -66,13 +68,41 @@ class _K_Api
                     $_a = "unknown return type ($_type), (available bool, array, numeric, string)";
                 }
                 die("ERROR: " . $_a);
-                return;
             }
 
             return;
         }
     }
 
+    public function useUpdates(PDO $db)
+    {
+        $currentVersion = file_get_contents(UPDATES_STATUS_FILE);
+        if ($currentVersion === false) {
+            file_put_contents(UPDATES_STATUS_FILE, "<?php // -1");
+            $currentVersion = -1;
+        } else {
+            $currentVersion = intval(substr($currentVersion, 9));
+        }
+        $files = glob(SQL_UPDATES_FOLDER . '/*.sql');
+        $updateVersion = null;
+        foreach ($files as $file) {
+            if (!is_file($file)) {
+                continue;
+            }
+            $version = intval(basename($file, '.sql'));
+            if ($version > $currentVersion) {
+                $db->exec(file_get_contents($file));
+                $updateVersion = $version;
+            }
+        }
+        if ($updateVersion !== null) {
+            file_put_contents(
+                UPDATES_STATUS_FILE,
+                "<?php // " . $updateVersion
+            );
+        }
+    }
+
     public function end()
     {
         if (!$this->has_exec) {

backend-php/k-api.updates-status.php

@@ -0,0 +1 @@
+<?php // 0

backend-php/sql-updates/0.sql

@@ -0,0 +1,34 @@
+/* initial sql database (dxv4 2.1) */
+
+CREATE TABLE admins (
+    adminId    TEXT    UNIQUE
+                       NOT NULL,
+    adminName  TEXT    NOT NULL,
+    adminClass TEXT    NOT NULL,
+    adminPrems INTEGER DEFAULT (666) 
+);
+
+CREATE TABLE changes (
+    classId TEXT,
+    forDay  TEXT,
+    content TEXT
+);
+
+CREATE TABLE classes (
+    classid       TEXT UNIQUE
+                       NOT NULL,
+    userclassname TEXT NOT NULL
+);
+
+CREATE TABLE rings (
+    classId  TEXT,
+    fromDate TEXT,
+    content  TEXT
+);
+
+CREATE TABLE schedules (
+    classId   TEXT,
+    fromDate  TEXT,
+    dayOfWeek INTEGER,
+    content   TEXT
+);