Build a PLUGIN for woocommerce

Need plugin to work with latest version of woo-commerce and wordpress. The plugin will be a : Key or License manager. the below features needed: 1- Keys: text and/or images. Send the keys as text or images. In addition, each key can contain one or more lines. Images: keys can be images 2- Order states: define several order states to assign keys to customers (Stated: processing or completed) Keys will be assigned to the order automatically and removed from the list. so there will be no duplication. 3- Import keys: Keys can be imported with a .txt or .csv file (separator can be defined). or in image format (jpg, gif) 4-Security: The keys are encrypted in the database using an encryption key which is defined in module's file. 5-Combinations: You can add keys to any products with or without combinations and in any products category. 6-Statistics: Number of keys available, ordered and disabled. 7- Orders: Ability to manually assign keys to an order and to view keys for a specific order. 8-Permissions: I - You can define permissions on each product keys. II - Orders: keys will be sent to customers belonging to a specific group only. the plugin should have this option as a must !! define to which group the key is allowed to be sent. EX: all the customers added to group XY, will receive the product automatically after checkout. Customer belong to Group XZ will not receive the product key automatically and will be processed manually by the admin. 9- Stock management: Key Manager updates products quantities if stock management is enabled and sends email to the administrator when key's stock is low. 10- Front Office: Key Manager displays keys ordered in the customer's account and sends an email with ordered keys to the customer when the payment is accepted. The module puts links in customer account and "My Account" block. The customer has the ability to receive by email his keys for specific order at any time. 11- Configuration: Advanced configuration features for the Front and Back Office.