Create Photoshop Mockup Automate Action Script

I am using two mock up templates and inserting arts into these mock ups. We are looking for someone which can help us to automate the process. What I need : there is one folder with source pictures art (our designs) each with different dimensions and resolution sizes. We already have the mock up. We would like the script to apply each source picture to the mock up and resize them proportionally to the full size of smart object space (sometimes acceptable with only maximizing either height or width due to the nature of some prints) and export the files in another folder (with the name of the source image). so in the attachments are two mock up files we need to apply our art inside