From 3cc233de3ac63e56f5de05ab74f3b1f0f4979081 Mon Sep 17 00:00:00 2001
From: Martijn de Boer <git@sexybiggetje.nl>
Date: Sat, 3 Feb 2024 14:08:03 +0100
Subject: [PATCH] Initial setup for framework

---
 DatabaseMigrations.php    |   6 ++
 LastLog.php               |  19 ++++
 Loader.php                |  63 ++++++++++++
 RunTask.php               |  17 ++++
 Settings.php              |  24 +++++
 lib/Cache.php             | 120 ++++++++++++++++++++++
 lib/Database.php          |  95 +++++++++++++++++
 lib/EmptyTemplate.php     |  28 ++++++
 lib/ITemplate.php         |   8 ++
 lib/KeyValue.php          |  53 ++++++++++
 lib/Logger.php            |  40 ++++++++
 lib/Task.php              |  10 ++
 lib/Template.php          | 207 ++++++++++++++++++++++++++++++++++++++
 schema/_schema.sql        |  30 ++++++
 schema/logs-000.sql       |   0
 schema/migrations-000.sql |   0
 16 files changed, 720 insertions(+)
 create mode 100644 DatabaseMigrations.php
 create mode 100644 LastLog.php
 create mode 100644 Loader.php
 create mode 100644 RunTask.php
 create mode 100644 Settings.php
 create mode 100644 lib/Cache.php
 create mode 100644 lib/Database.php
 create mode 100644 lib/EmptyTemplate.php
 create mode 100644 lib/ITemplate.php
 create mode 100644 lib/KeyValue.php
 create mode 100644 lib/Logger.php
 create mode 100644 lib/Task.php
 create mode 100644 lib/Template.php
 create mode 100644 schema/_schema.sql
 create mode 100644 schema/logs-000.sql
 create mode 100644 schema/migrations-000.sql

diff --git a/DatabaseMigrations.php b/DatabaseMigrations.php
new file mode 100644
index 0000000..8f5deac
--- /dev/null
+++ b/DatabaseMigrations.php
@@ -0,0 +1,6 @@
+<?php
+require_once("Settings.php");
+
+$db = new Database(!file_exists(SQLITE_DB));
+$db->runMigrations();
+$db->close();
\ No newline at end of file
diff --git a/LastLog.php b/LastLog.php
new file mode 100644
index 0000000..7cb196a
--- /dev/null
+++ b/LastLog.php
@@ -0,0 +1,19 @@
+<?php
+require_once("Settings.php");
+
+$limit = 100;
+if (isset($argv[1]) && is_numeric($argv[1])) {
+	$limit = $argv[1];
+}
+
+$db = new Database();
+$stmt = $db::$handle->prepare("SELECT * FROM (SELECT * FROM `logs` ORDER BY datetime(`created`) DESC, `id` DESC LIMIT " . $limit . ") ORDER BY `created` ASC, `id` ASC");
+$result = $stmt->execute();
+
+while ($row = $result->fetchArray(SQLITE3_ASSOC)) {
+	$levelColor = Logger::getColor($row["level"]);
+
+	echo "\033[0;37m[" . $row["created"] . "] " . $levelColor . $row["level"] . "\033[0;37m: " . $row["message"] . "\033[0m" . PHP_EOL;
+}
+
+$db->close();
\ No newline at end of file
diff --git a/Loader.php b/Loader.php
new file mode 100644
index 0000000..00d348b
--- /dev/null
+++ b/Loader.php
@@ -0,0 +1,63 @@
+<?php
+class Loader {
+	protected static array $dirs = [
+		"LIB_MIGRATIONS_DIR",
+		"LIB_TASKS_DIR",
+		"LIB_TEMPLATE_DIR",
+		"LIB_LIB_DIR",
+		"TASKS_DIR",
+		"TEMPLATE_DIR",
+		"LIB_DIR"
+	];
+
+	protected static $classmap = [];
+
+	public static function _autoload($class) {
+
+		if (count(self::$classmap) === 0) {
+			self::buildRecursiveClassMap();
+		}
+
+		if (isset(self::$classmap[$class])) {
+			require_once(self::$classmap[$class]);
+			return;
+		}
+	}
+
+	protected static function buildRecursiveClassMap() {
+		foreach (self::$dirs as $dir) {
+			if (!defined($dir)) {
+				continue;
+			}
+
+			$dir = constant($dir);
+
+			if (!is_dir($dir) || !is_readable($dir)) {
+				continue;
+			}
+
+			self::buildClassMap($dir);
+		}
+	}
+
+	protected static function buildClassMap($dir) {
+		$files = scandir($dir);
+		foreach ($files as $file) {
+			if ($file === "." || $file === "..") {
+				continue;
+			}
+			if (is_dir($file)) {
+				self::buildClassMap($file);
+			} else {
+				$parts = explode(".", $file);
+				$ext = array_pop($parts);
+				if ($ext === "php") {
+					$classname = array_shift($parts);
+					self::$classmap[$classname] = $dir . "/" . $file;
+				}
+			}
+		}
+	}
+}
+
+spl_autoload_register("Loader::_autoload");
diff --git a/RunTask.php b/RunTask.php
new file mode 100644
index 0000000..0dd9136
--- /dev/null
+++ b/RunTask.php
@@ -0,0 +1,17 @@
+<?php
+require_once("Settings.php");
+
+if (!isset($argv[1]) || empty($argv[1])) {
+	Logger::log("No task specified", Logger::ERROR, "RunTask");
+	exit(1);
+}
+
+$task = $argv[1] . "Task";
+if (!file_exists(LIB_DIR . "/tasks/" . $task . ".php")) {
+	Logger::log("Task " . $task . " does not exist", Logger::ERROR, "RunTask");
+	exit(1);
+}
+
+require_once(LIB_DIR . "/tasks/" . $task . ".php");
+$task = new $task();
+$task->run();
\ No newline at end of file
diff --git a/Settings.php b/Settings.php
new file mode 100644
index 0000000..502e6b2
--- /dev/null
+++ b/Settings.php
@@ -0,0 +1,24 @@
+<?php
+set_error_handler(function ($errno, $errstr, $errfile, $errline) {
+	throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
+});
+
+set_exception_handler(function ($exception) {
+	echo $exception->getMessage() . " on line " . $exception->getLine() . " in " . $exception->getFile() . PHP_EOL;
+	exit;
+});
+
+if (!defined("PROJECT_DIR") ) {
+	define("PROJECT_DIR", rtrim( dirname(__FILE__ . "/../.."), "/"));
+}
+
+if (!defined("SQLITE_DB")) {
+	throw new Exception("SQLITE_DB not defined");
+}
+
+define("LIB_MIGRATIONS_DIR", dirname(__FILE__) . "/schema");
+define("LIB_TASKS_DIR", dirname(__FILE__) . "/tasks");
+define("LIB_TEMPLATE_DIR", dirname(__FILE__) . "/templates");
+define("LIB_LIB_DIR", dirname(__FILE__) . "/lib");
+
+require_once(dirname(__FILE__) . "/Loader.php");
\ No newline at end of file
diff --git a/lib/Cache.php b/lib/Cache.php
new file mode 100644
index 0000000..119e2c5
--- /dev/null
+++ b/lib/Cache.php
@@ -0,0 +1,120 @@
+<?php
+class Cache {
+	public static function getCacheFile(string $name, $maxAge = 3600) {
+		$cacheFile = CACHE_DIR . "/" . $name;
+
+		if (file_exists($cacheFile) && filemtime($cacheFile) > time() - $maxAge) {
+			Logger::log("Cache hit for " . $name, Logger::IOREAD, "Cache");
+			return COMPRESS_LOCAL_CACHE ? gzuncompress(file_get_contents($cacheFile)) : file_get_contents($cacheFile);
+		}
+
+		return null;
+	}
+
+	public static function saveCacheFile(string $name, string $data) {
+		$cacheFile = CACHE_DIR . "/" . $name;
+		file_put_contents($cacheFile, COMPRESS_LOCAL_CACHE ? gzcompress($data,9) : $data );
+		Logger::log("Saved cache file " . $name, Logger::IOWRITE, "Cache");
+	}
+
+	public static function publicCacheExists(string $name, bool $skipExtensionCheck = false) {
+		// For now cache is not reliable since we use a generated name.
+		return false;
+		/*if (!$skipExtensionCheck) {
+			$ext = substr($name, strrpos($name, ".") + 1);
+			if (strtolower($ext) == "jpg" || strtolower($ext) == "jpeg" || strtolower($ext) == "png") {
+				$name = str_replace("." . $ext, ".webp", strtolower($name));
+			}
+		}
+
+		$cacheFile = PUBLIC_CACHE_DIR . "/" . $name;
+
+		try {
+			$fe = file_exists($cacheFile);
+		} catch (Exception $e) {
+			$fe = false;
+			Logger::log("Could not check if public cache file " . $name . " exists: " . $e->getMessage(), Logger::ERROR, "Cache");
+		}
+
+		return $fe;*/
+	}
+
+	public static function savePublicCacheFile(string $name, string $data, int $cacheLevel = 70, bool $skipExtensionCheck = false) {
+		$name = strtolower($name);
+
+		$ext = substr($name, strrpos($name, ".") + 1);
+		if ($skipExtensionCheck || strtolower($ext) == "jpg" || strtolower($ext) == "jpeg" || strtolower($ext) == "png") {
+			$size = strlen($data);
+			$img = new Imagick();
+			$img->readImageBlob($data);
+			$img->setImageFormat('webp');
+			$img->setImageCompressionQuality($cacheLevel);
+			$img->stripImage();
+			$data = $img->getImageBlob();
+			$name = str_replace("." . $ext, ".webp", strtolower($name));
+
+			$cacheFile = PUBLIC_CACHE_DIR . "/" . $name;
+			$blurhash = self::generateBlurHash($cacheFile, $img, $skipExtensionCheck);
+			if (!empty($blurhash)) {
+				$name = "BH-" . bin2hex($blurhash) . "-W" . $img->getImageWidth() . "xH" . $img->getImageHeight() . ".webp";
+				$cacheFile = PUBLIC_CACHE_DIR . "/" . $name;
+			}
+
+			// For now don't transfer file if its generated name exists
+			if (file_exists($cacheFile)) {
+				Logger::log("Public cache file " . $name . " already exists", Logger::INFO, "Cache");
+				return PUBLIC_CACHE_URL . "/" . $name;
+			}
+
+			Logger::log("Compressed image from " . $size . " to " . strlen($data) . " bytes", Logger::METRICS, "Cache");
+		}
+
+		$context = stream_context_create([
+			's3' => [
+				'ACL' => 'public-read'
+			]
+		]);
+
+		file_put_contents($cacheFile, $data, 0, $context);
+
+		Logger::log("Saved public cache file " . $name, Logger::IOWRITE, "Cache");
+
+		return PUBLIC_CACHE_URL . "/" . $name;
+	}
+
+	public static function generateBlurHash(string $cacheFile, ?IMagick $img = null, bool $skipExtensionCheck = false):?string {
+		$ext = substr($cacheFile, strrpos($cacheFile, ".") + 1);
+		if ($skipExtensionCheck || strtolower($ext) == "jpg" || strtolower($ext) == "jpeg" || strtolower($ext) == "png" || strtolower($ext) == "webp") {
+
+			$hashFile = strtolower($cacheFile);
+			$hashFileName = substr($hashFile, strrpos($hashFile, "/") + 1);
+			if (file_exists($hashFile)) {
+				return null;
+			}
+
+			$pixels = [];
+
+			if ($img === null) {
+				$img = new Imagick();
+				$img->readImage($cacheFile);
+			}
+
+			$width = $img->getImageWidth();
+			$height = $img->getImageHeight();
+
+			for ($y = 0; $y < $height; $y++) {
+				$row = [];
+				for ($x = 0; $x < $width; $x++) {
+					$pixel = $img->getImagePixelColor($x, $y);
+					$color = $pixel->getColor();
+					$row[] = [$color["r"], $color["g"], $color["b"]];
+				}
+				$pixels[] = $row;
+			}
+
+			$hash = \kornrunner\Blurhash\Blurhash::encode($pixels, BLURHASH_X, BLURHASH_Y);
+
+			return $hash;
+		}
+	}
+}
\ No newline at end of file
diff --git a/lib/Database.php b/lib/Database.php
new file mode 100644
index 0000000..a69f58f
--- /dev/null
+++ b/lib/Database.php
@@ -0,0 +1,95 @@
+<?php
+class Database
+{
+	public static $handle = null;
+
+	public function __construct($createDatabase = false)
+	{
+		if (self::$handle === null) {
+			self::$handle = new SQLite3(SQLITE_DB);
+			self::$handle->enableExceptions(true);
+
+
+			if ($createDatabase === true) {
+				$this->createDatabase();
+			}
+		}
+	}
+
+	public function createDatabase()
+	{
+		$schemaFiles = [
+			LIB_MIGRATIONS_DIR . "/_schema.sql",
+			MIGRATIONS_DIR . "/_schema.sql"
+		];
+
+		foreach ($schemaFiles as $schemaFile) {
+			if (file_exists($schemaFile)) {
+				$schema = file_get_contents($schemaFile);
+				self::$handle->exec($schema);
+			}
+		}
+	}
+
+	public function runMigrations()
+	{
+		$currentTableVersions = [];
+
+		$result = self::$handle->query("SELECT `table`,`version` FROM `migrations`");
+		while ($row = $result->fetchArray(SQLITE3_ASSOC)) {
+			$currentTableVersions[$row["table"]] = $row["version"];
+		}
+
+		$migrations = [];
+		$migrationPaths = [LIB_MIGRATIONS_DIR, MIGRATIONS_DIR];
+		foreach ($migrationPaths as $migrationPath) {
+			if (is_dir($migrationPath)) {
+				$migrations = array_merge($migrations, scandir($migrationPath));
+			}
+		}
+
+		$migrationCount = 0;
+
+		foreach ($migrations as $migration) {
+			if ($migration == "." || $migration == ".." || $migration == "_schema.sql") {
+				continue;
+			}
+
+			$migrationParts = explode("-", str_replace(".sql", "", $migration));
+			$migrationTable = $migrationParts[0];
+			$migrationVersion = $migrationParts[1];
+
+			$run = false;
+
+			if (!isset($currentTableVersions[$migrationTable])) {
+				$run = true;
+			} else {
+				if ($migrationVersion > $currentTableVersions[$migrationTable]) {
+					$run = true;
+				}
+			}
+
+			if ($run === true) {
+				Logger::log("Found migration for table " . $migrationTable . " version " . $migrationVersion, LOGGER::INFO, "Database");
+				$migrationContents = file_get_contents(MIGRATIONS_DIR . "/" . $migration);
+				if (@self::$handle->exec($migrationContents)) {
+					self::$handle->exec("INSERT INTO `migrations` (`table`,`version`, `schemafile`, `created`) VALUES ('" . $migrationTable . "'," . $migrationVersion . ",'" . $migration . "', strftime('%Y-%m-%d %H:%M:%S','now'))");
+					$migrationCount++;
+				} else {
+					Logger::log("Failed to run migration for table " . $migrationTable . " version " . $migrationVersion . " with error: " . self::$handle->lastErrorMsg(), LOGGER::ERROR, "Database");
+				}
+			}
+		}
+
+		if ($migrationCount > 0) {
+			Logger::log("Ran " . $migrationCount . " migrations", LOGGER::DEBUG, "Database");
+		} else {
+			Logger::log("No migrations to run", LOGGER::DEBUG, "Database");
+		}
+	}
+
+	public function close()
+	{
+		self::$handle->close();
+	}
+}
diff --git a/lib/EmptyTemplate.php b/lib/EmptyTemplate.php
new file mode 100644
index 0000000..760c8fb
--- /dev/null
+++ b/lib/EmptyTemplate.php
@@ -0,0 +1,28 @@
+<?php
+class EmptyTemplate implements ITemplate
+{
+	protected Template $template;
+	protected ?object $options = null;
+
+	public function __construct(Template &$template, ?object $options = null)
+	{
+		$this->template = $template;
+		$this->options = $options;
+	}
+
+	public function load()
+	{
+	}
+
+	public function pretransform()
+	{
+	}
+
+	public function transform()
+	{
+	}
+
+	public function save()
+	{
+	}
+}
diff --git a/lib/ITemplate.php b/lib/ITemplate.php
new file mode 100644
index 0000000..a78f831
--- /dev/null
+++ b/lib/ITemplate.php
@@ -0,0 +1,8 @@
+<?php
+interface ITemplate {
+	public function __construct(Template &$template, ?object $options = null);
+	public function load();
+	public function pretransform();
+	public function transform();
+	public function save();
+}
\ No newline at end of file
diff --git a/lib/KeyValue.php b/lib/KeyValue.php
new file mode 100644
index 0000000..95318fd
--- /dev/null
+++ b/lib/KeyValue.php
@@ -0,0 +1,53 @@
+<?php
+class KeyValue {
+	protected static $kv = null;
+
+	public static function get(string $keyname, ?string $channel = null) {
+		if (self::$kv === null) {
+			self::load();
+		}
+
+		if ($channel === null) {
+			$channel = "all";
+		}
+
+		if (isset(self::$kv[$keyname][$channel])) {
+			return self::$kv[$keyname][$channel];
+		}
+
+		return null;
+	}
+
+	public static function save(string $keyname, string $value, ?string $channel = null) {
+		if (self::$kv === null) {
+			self::load();
+		}
+
+		if ($channel === null) {
+			$channel = "all";
+		}
+
+		$db = new Database();
+		$stmt = $db::$handle->prepare("INSERT OR REPLACE INTO `keyvalue` (`key`, `value`, `channel`, `created`) VALUES (:key, :value, :channel, strftime('%Y-%m-%d %H:%M:%S','now'))");
+		$stmt->bindValue(":key", $keyname, SQLITE3_TEXT);
+		$stmt->bindValue(":value", $value, SQLITE3_TEXT);
+		$stmt->bindValue(":channel", $channel, SQLITE3_TEXT);
+		$stmt->execute();
+
+		self::$kv[$keyname][$channel] = $value;
+	}
+
+	protected static function load() {
+		$db = new Database();
+		$stmt = $db::$handle->prepare("SELECT * FROM `keyvalue`");
+		$result = $stmt->execute();
+		while ($row = $result->fetchArray(SQLITE3_ASSOC)) {
+			$channel = $row["channel"];
+			if ($channel === null) {
+				$channel = "all";
+			}
+
+			self::$kv[$row["key"]][$channel] = $row["value"];
+		}
+	}
+}
\ No newline at end of file
diff --git a/lib/Logger.php b/lib/Logger.php
new file mode 100644
index 0000000..ce5acc6
--- /dev/null
+++ b/lib/Logger.php
@@ -0,0 +1,40 @@
+<?php
+class Logger {
+	const INFO = "INFO";
+	const WARNING = "WARNING";
+	const ERROR = "ERROR";
+	const DEBUG = "DEBUG";
+	const IOREAD = "IOREAD";
+	const IOWRITE = "IOWRITE";
+	const METRICS = "METRICS";
+
+	public static function getColor(string $level):string {
+		match ($level) {
+			self::INFO => $levelColor = "\033[0;32m",
+			self::WARNING => $levelColor = "\033[0;33m",
+			self::ERROR => $levelColor = "\033[0;31m",
+			self::DEBUG => $levelColor = "\033[0;34m",
+			self::IOREAD => $levelColor = "\033[0;35m",
+			self::IOWRITE => $levelColor = "\033[0;36m",
+			self::METRICS => $levelColor = "\033[0;41m",
+			default => $levelColor = "\033[0;37m"
+		};
+
+		return $levelColor;
+	}
+
+	public static function log(string $message, string $level = "INFO", string $context = "") {
+
+		$db = new Database();
+		$stmt = $db::$handle->prepare("INSERT INTO `logs` (`level`, `message`, `context`, `created`) VALUES (:level, :message, :context, strftime('%Y-%m-%d %H:%M:%S','now'))");
+		$stmt->bindValue(":level", $level, SQLITE3_TEXT);
+		$stmt->bindValue(":message", $message, SQLITE3_TEXT);
+		$stmt->bindValue(":context", $context, SQLITE3_TEXT);
+
+		@$stmt->execute();
+
+		$levelColor = self::getColor($level);
+
+		echo "\033[0;37m[" . date("Y-m-d H:i:s") . "] " . $levelColor . $level . "\033[0;37m: " . $message . "\033[0m" . PHP_EOL;
+	}
+}
\ No newline at end of file
diff --git a/lib/Task.php b/lib/Task.php
new file mode 100644
index 0000000..f0102d6
--- /dev/null
+++ b/lib/Task.php
@@ -0,0 +1,10 @@
+<?php
+abstract class Task {
+	public function run() {
+		Logger::log("Running task " . get_class($this), Logger::DEBUG, "Task");
+		$this->execute();
+		Logger::log("Finished task " . get_class($this), Logger::DEBUG, "Task");
+	}
+
+	abstract protected function execute();
+}
\ No newline at end of file
diff --git a/lib/Template.php b/lib/Template.php
new file mode 100644
index 0000000..9397ccd
--- /dev/null
+++ b/lib/Template.php
@@ -0,0 +1,207 @@
+<?php
+class Template {
+	protected $template = null;
+	protected $data = array();
+
+	public function __construct(string $template, ?array $parentData = null) {
+		$this->template = $template;
+
+		if (isset($parentData)) {
+			$this->data = $parentData;
+		}
+	}
+
+	public function set(string $key, $value) {
+		$this->data[$key] = $value;
+	}
+
+	public function render($options = null): string {
+		Logger::log("Rendering template " . $this->template, Logger::IOREAD, "Template");
+
+		$class = is_object($options) && isset($options->class) ? new $options->class($this, $options) : new EmptyTemplate($this, $options);
+		$class->load();
+		$contents = file_get_contents(TEMPLATE_DIR . "/" . $this->template);
+
+		$class->pretransform();
+		// Replace includes of templates
+		$matches = array();
+		preg_match_all("/{{include (.*\.html)(.*)}}/", $contents, $matches);
+		for ($i = 0; $i < count($matches[1]); $i++) {
+			$matchString = $matches[0][$i];
+			$match = $matches[1][$i];
+			$options = trim($matches[2][$i]);
+
+			$include = new Template(dirname($this->template) . "/" . $match, $this->data);
+			$contents = str_replace($matchString, $include->render(
+				!empty($options) ? json_decode($options, false, 512, JSON_THROW_ON_ERROR) : null
+			), $contents);
+		}
+
+		$class->transform();
+
+		// Replace variables
+		foreach ($this->data as $key => $value) {
+			if (is_string($value) || is_numeric($value)) {
+				$contents = str_replace("{{" . $key . "}}", $value, $contents);
+			} else {
+				$contents = str_replace("{{" . $key . "}}", "", $contents);
+			}
+		}
+
+		// Conditional tags are written as {{?<variablename>}}some content{{/<variablename>}}, find conditional tags and evaluate them if they exist in $this->data
+		$matches = array();
+		preg_match_all("/{{\?(.*)}}(.*){{\/(.*)}}/sU", $contents, $matches);
+		for ($i = 0; $i < count($matches[1]); $i++) {
+			$matchString = $matches[0][$i];
+			$match = $matches[1][$i];
+			$content = $matches[2][$i];
+
+			if (isset($this->data[$match])) {
+				$contents = str_replace($matchString, $content, $contents);
+			} else {
+				$contents = str_replace($matchString, "", $contents);
+			}
+		}
+
+		$class->save();
+
+		return $contents;
+	}
+
+	public function save(string $filename, string $contents, bool $minify = true) {
+		Logger::log("Saving template to " . $filename, Logger::IOWRITE, "Template");
+
+		if ($minify) {
+			$size = strlen($contents);
+
+			$doc = new DOMDocument();
+			$doc->preserveWhiteSpace = false;
+			$doc->formatOutput = false;
+			$doc->normalizeDocument();
+
+			libxml_use_internal_errors(true);
+
+			$doc->loadHTML($contents);
+
+			libxml_use_internal_errors(false);
+
+			$options = [
+				'keep_whitespace_around' => [
+					// keep whitespace around inline elements
+					'b', 'big', 'i', 'small', 'tt',
+					'abbr', 'acronym', 'cite', 'code', 'dfn', 'em', 'kbd', 'strong', 'samp', 'var',
+					'a', 'bdo', 'br', 'img', 'map', 'object', 'q', 'span', 'sub', 'sup',
+					'button', 'input', 'label', 'select', 'textarea'
+				],
+				'keep_whitespace_in' => [/*'script', 'style',*/ 'pre'],
+				'remove_empty_attributes' => ['style', 'class'],
+				'indent_characters' => "\t"
+			];
+
+			//Comments,empty,whitespace
+			$xpath = new \DOMXPath($doc);
+			foreach ($xpath->query('//comment()') as $comment) {
+				$comment->parentNode->removeChild($comment);
+			}
+
+			$xpath = new \DOMXPath($doc);
+			foreach ($options['remove_empty_attributes'] as $attr) {
+				foreach ($xpath->query('//*[@' . $attr . ']') as $el) {
+					if (trim($el->getAttribute($attr)) == '') {
+						$el->removeAttribute($attr);
+					}
+				}
+			}
+
+			$x = new \DOMXPath($doc);
+			$nodeList = $x->query("//text()");
+			foreach ($nodeList as $node) {
+				/** @var \DOMNode $node */
+
+				if (in_array($node->parentNode->nodeName, $options['keep_whitespace_in'])) {
+					continue;
+				};
+
+				$node->nodeValue = str_replace(["\r", "\n", "\t"], ' ', $node->nodeValue);
+
+				while (strpos($node->nodeValue, '  ') !== false) {
+					$node->nodeValue = str_replace('  ', ' ', $node->nodeValue);
+				}
+
+				if (!in_array($node->parentNode->nodeName, $options['keep_whitespace_around'])) {
+					if (!($node->previousSibling && in_array(
+						$node->previousSibling->nodeName,
+						$options['keep_whitespace_around']
+					))) {
+						$node->nodeValue = ltrim($node->nodeValue);
+					}
+
+					if (!($node->nextSibling && in_array(
+						$node->nextSibling->nodeName,
+						$options['keep_whitespace_around']
+					))) {
+						$node->nodeValue = rtrim($node->nodeValue);
+					}
+				}
+
+				if ((strlen($node->nodeValue) == 0)) {
+					$node->parentNode->removeChild($node);
+				}
+			}
+
+			$contents = $doc->saveHTML();
+
+			Logger::log("Minified template from " . $size . " to " . strlen($contents) . " bytes", Logger::METRICS, "Template");
+		}
+
+		file_put_contents(PUBLIC_DIR . "/" . $filename, $contents);
+	}
+
+	public function saveCss(string $filename, string $contents, bool $minify = true)
+	{
+		Logger::log("Saving css to " . $filename, Logger::IOWRITE, "Template");
+
+		if ($minify) {
+			$size = strlen($contents);
+
+			$contents = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $contents);
+			$contents = str_replace(': ', ':', $contents);
+			$contents = str_replace(array("\r\n", "\r", "\n", "\t", '  ', '    ', '    '), '', $contents);
+
+			Logger::log("Minified " . $filename . " from " . $size . " to " . strlen($contents) . " bytes", Logger::METRICS, "Template");
+		}
+
+		file_put_contents(PUBLIC_DIR . "/" . $filename, $contents);
+	}
+
+	public function saveScript(string $filename, string $contents, bool $minify = true)
+	{
+		Logger::log("Saving script to " . $filename, Logger::IOWRITE, "Template");
+
+		if ($minify) {
+			$size = strlen($contents);
+
+			$contents = preg_replace('/([-\+])\s+\+([^\s;]*)/', '$1 (+$2)', $contents);
+			$contents = preg_replace("/\s*\n\s*/", "\n", $contents);
+			$contents = preg_replace("/\h+/", " ", $contents);
+			$contents = preg_replace("/\h([^A-Za-z0-9\_\$])/", '$1', $contents);
+			$contents = preg_replace("/([^A-Za-z0-9\_\$])\h/", '$1', $contents);
+			$contents = preg_replace("/\s?([\(\[{])\s?/", '$1', $contents);
+			$contents = preg_replace("/\s([\)\]}])/", '$1', $contents);
+			$contents = preg_replace("/\s?([\.=:\-+,])\s?/", '$1', $contents);
+			$contents = preg_replace("/;\n/", ";", $contents);
+			$contents = preg_replace('/;}/', '}', $contents);
+			$contents = preg_replace('/\s+/', ' ', $contents);
+			$contents = preg_replace('/\s*([;{}])\s*/', '$1', $contents);
+
+			$contents = preg_replace('/\s*(;{})\s*/', '$1', $contents);
+
+			$contents = str_replace(array("\r\n", "\r", "\n", "\t", '  ', '    ', '    '), '', $contents);
+
+			Logger::log("Minified " . $filename . " from " . $size . " to " . strlen($contents) . " bytes", Logger::METRICS, "Template");
+		}
+
+		file_put_contents(PUBLIC_DIR . "/" . $filename, $contents);
+	}
+
+}
\ No newline at end of file
diff --git a/schema/_schema.sql b/schema/_schema.sql
new file mode 100644
index 0000000..d4a9739
--- /dev/null
+++ b/schema/_schema.sql
@@ -0,0 +1,30 @@
+CREATE TABLE IF NOT EXISTS `migrations` (
+	`id` INTEGER PRIMARY KEY AUTOINCREMENT,
+	`table` TEXT NOT NULL,
+	`version` INTEGER NOT NULL,
+	`schemafile` TEXT NOT NULL,
+	`created` TEXT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS `migrations_table` ON `migrations` (`table`, `version`);
+CREATE INDEX IF NOT EXISTS `migrations_created` ON `migrations` (`created`);
+
+CREATE TABLE IF NOT EXISTS `logs` (
+	`id` INTEGER PRIMARY KEY AUTOINCREMENT,
+	`level` TEXT NOT NULL,
+	`message` TEXT NOT NULL,
+	`context` TEXT,
+	`created` TEXT
+);
+
+CREATE INDEX IF NOT EXISTS `logs_level` ON `logs` (`level`, `created`);
+
+CREATE TABLE IF NOT EXISTS `keyvalue` (
+	`id` INTEGER PRIMARY KEY AUTOINCREMENT,
+	`key` TEXT NOT NULL,
+	`channel` TEXT DEFAULT NULL,
+	`value` TEXT NOT NULL,
+	`created` TEXT NOT NULL
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS `keyvalue_key` ON `keyvalue` (`key`, `channel`);
diff --git a/schema/logs-000.sql b/schema/logs-000.sql
new file mode 100644
index 0000000..e69de29
diff --git a/schema/migrations-000.sql b/schema/migrations-000.sql
new file mode 100644
index 0000000..e69de29