how to add custom language switcher

[fatheeym]

hi

i intend to use prestashop multistore as every store different language

for example

store.com/en-GB is a store in english

store.com/de-ES is a store in Spain

but the problem is what is the code to add language switcher between this

for example if i'm in 

 

store.com/en-GB/index.php?id_product=1&id_product_attribute=1&rewrite=faded-short-sleeves-tshirt&controller=product#/1-size-s/13-color-orange

iwant when i click on the button move to

store.com/de-ES/index.php?id_product=1&id_product_attribute=1&rewrite=faded-short-sleeves-tshirt&controller=product#/1-size-s/13-color-orange

 

[fatheeym]

any help ?