Handle openfoodfacts.org links (Add deeplinking towards the product page)

[teolemon]

Who for

• Potential users
• Current users

What

• We have many product pages on the web
• There are in-browser mechanisms to propose installing the native app for those who visit the page in a browser, or directly from Search Engines
• Allow Smoothie to handle openfoodfacts.org links

Design doc with links to implementations in the classic apps

Why

• Convenient for existing users
• Chrome might propose app install as a result after a few visits.
• Google Search might propose app install in some conditions.

Part of

• Distributing the app widely (tracker) #2515

Mockup

Code pointer

• https://docs.flutter.dev/development/ui/navigation/deep-linking

Status

At the moment we handle these urls:

• Android
  • /product
  • /additive
  • /allergen
  • /category
  • /cgi/search.pl
  • /contributor
  • /country
  • /label
  • /manufacturing-place
  • /origin
  • /packaging
  • /state
  • /store
• iOS:
  • ...

Note that we should support those URLs in plural (list of all existing additives), and in singular (list of products for a given additive)

Urls we'd like to support

Depends on

• Switching the navigator (deeplinking ?) #260

[M123-dev]

Note: Its not straight forward, we have to switch to either named routes or router 2.0

• Switching the navigator (deeplinking ?) #260

[g123k]

You're right @M123-dev, before handling deep links, we have to migrate the app named routes or Navigator 2.
I create a separate issue for migration.