Begin web app frontend in PHP.main

While I'd like a command line client for retreiving information and
scripting stuff based on the db contents, a web app is convenient for
the less common stuff like adding and editing data.

The web app could also have been done in rust, however, I feel php is so
convenient for simple web stuff that I think it makes more sense this
way.

2 files changed, 67 insertions, 0 deletions

diff --git a/web/include/api.php b/web/include/api.php
new file mode 100644
index 0000000..c13b15c
--- /dev/null
+++ b/web/include/api.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * Functions for intercting with the remote API.
+ *
+ * @package volse.faktura.web
+ */
+
+namespace Faktura\API;
+
+define('API_URL', 'http://postgrest:3000');
+
+function call(string $method, string $resource, mixed $data = null): string {
+	$ch = curl_init();
+	curl_setopt($ch, CURLOPT_URL, API_URL . '/' . $resource);
+	curl_setopt($ch, CURLOPT_HEADER, 'Accept: application/json');
+	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
+	curl_setopt($ch, CURLOPT_TIMEOUT, 5);
+	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+
+	$result = curl_exec($ch);
+
+	if ($result === false) {
+		echo curl_error($ch);
+		die();
+	}
+
+	curl_close($ch);
+
+	return $result;
+}
+
diff --git a/web/include/misc.php b/web/include/misc.php
new file mode 100644
index 0000000..15b5cea
--- /dev/null
+++ b/web/include/misc.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * Misc utility functions
+ *
+ * @package volse.faktura.web
+ */
+
+/**
+ * Escape an input string so that it's safe fr use in a html context.
+ *
+ * @param string $input   The unescaped input string.
+ *
+ * @return A string that's safe for use in html tags.
+ */
+function esc_html(?string $input): string {
+	if (empty($input)) {
+		return '';
+	}
+
+	return htmlspecialchars($input, ENT_NOQUOTES | ENT_HTML5);
+}
+
+/**
+ * Escape input so that it's safe for use in html attrubutes.
+ *
+ * @param string $input   The unescaped input string.
+ *
+ * @return A string that's safe for use in html attibutes.
+ */
+function esc_attr(?string $input): string {
+	if (empty($input)) {
+		return '';
+	}
+
+	return htmlspecialchars($input, ENT_QUOTES | ENT_HTML5);
+}