feat!: allow registration of multiple users (#340)

feat: administration area
feat: add reset password functionality

migrations/000020.php

@@ -0,0 +1,54 @@
+<?php
+/*
+/ This migration adds user_id foreign key to all the relevant tables, to allow for multiple users.
+/ It also creates the admin table to store the admin settings.
+*/
+
+/** @noinspection PhpUndefinedVariableInspection */
+
+$tablesToUpdate = ['payment_methods', 'subscriptions', 'categories', 'currencies', 'fixer', 'household', 'settings', 'custom_colors', 'notification_settings', 'telegram_notifications', 'webhook_notifications', 'gotify_notifications', 'email_notifications', 'pushover_notifications', 'discord_notifications', 'last_exchange_update'];
+foreach ($tablesToUpdate as $table) {
+    $columnQuery = $db->query("SELECT * FROM pragma_table_info('$table') WHERE name='user_id'");
+    $columnRequired = $columnQuery->fetchArray(SQLITE3_ASSOC) === false;
+
+    if ($columnRequired) {
+        $db->exec("ALTER TABLE $table ADD COLUMN user_id INTEGER DEFAULT 1");
+    }
+}
+
+
+$db->exec('CREATE TABLE IF NOT EXISTS admin (
+    id INTEGER PRIMARY KEY,
+    registrations_open BOOLEAN DEFAULT 0,
+    max_users INTEGER DEFAULT 0,
+    require_email_verification BOOLEAN DEFAULT 0,
+    server_url TEXT,
+    smtp_address TEXT,
+    smtp_port INTEGER DEFAULT 587,
+    smtp_username TEXT,
+    smtp_password TEXT,
+    from_email TEXT,
+    encryption TEXT DEFAULT "tls"
+)');
+
+$db->exec('INSERT INTO admin (id, registrations_open, require_email_verification, server_url, max_users, smtp_address, smtp_port, smtp_username, smtp_password, from_email, encryption) VALUES (1, 0, 0, "", 0, "", 587, "", "", "", "tls")');
+
+$updateQuery = "UPDATE payment_methods SET icon = 'images/uploads/icons/' || icon WHERE id < 32 AND icon NOT LIKE '%/images/uploads/icons%'";
+$db->exec($updateQuery);
+
+$db->exec('CREATE TABLE IF NOT EXISTS email_verification (
+    id INTEGER PRIMARY KEY,
+    user_id INTEGER,
+    email TEXT,
+    token TEXT,
+    email_sent BOOLEAN DEFAULT 0)');
+
+$db->exec('CREATE TABLE IF NOT EXISTS password_resets (
+    id INTEGER PRIMARY KEY,
+    user_id INTEGER,
+    email TEXT,
+    token TEXT,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    email_sent BOOLEAN DEFAULT 0)');
+
+?>