extend drupal website with app (Drupalgap), to add pictures to a node

drupal module development current situation is working in main website. main node type is 'file'. In here is the general information of clients etc. There is a (entity)reference field to a user, the file manager after login The 'file manager' can see a list of all files that are assigned to him/here, this is a view with a context 'uid' filter He can click on a 'file'title to see it. In the file he can see al information, and a log as a table (this is EVA field) thre is a button: when clicked He will create new node, this is a log items, these items are connected though a reference_field. the new node will be added to the EVA field so all information in the file is put together. I want to have the same ability with an app, so file managers can add photos and documents with their is and android devices. It need it be uilt on Drupalgap with modules. For the development You can not have access to the live website, because of privacy issues. The modules have to be written from the information i will send you. I will test the modules, this is not optimal to work, but I have to comply to the law. So only respond if you have experience with drupalgap. (jQuery ) I will take into consideration if you can make some sample modules that get me started, so it would take some minor tweaks by me to have it work. e.g. change field names, titles, views names etc. I will provide information on node, Json/views, filters, menu ites, access restriction etc. in short: 2 Modules are needed see the main page. this is a views page in the main website. 2 modules are needed in drupalgap to archieve the same result. 1 module needed to view the 'file' node, with a link to create a 'log' node 1 module for editing the 'log'node