Send upcoming invoice to provider billing email

[cyprain-okeke]

Type of change

- [ ] Bug fix
- [x] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [ ] Build/deploy pipeline (DevOps)
- [ ] Other

Objective

Provider Upcoming Invoice Notification

We need to send an email notification to the provider's billing email when an invoice is upcoming. This will ensure that the provider is aware of any upcoming charges and can choose to manage their billing information accordingly.

When an invoice.upcoming event is received, we need to retrieve the associated provider's billing email from the subscription's metadata.
we need to generate an email notification that includes the details of the upcoming invoice.
we need to send this email notification to the provider's billing email to alert them of the upcoming invoice

Code changes

• file.ext: Description of what was changed and why

Before you submit

• Please check for formatting errors (dotnet format --verify-no-changes) (required)
• If making database changes - make sure you also update Entity Framework queries and/or migrations
• Please add unit tests where it makes sense to do so (encouraged but not required)
• If this change requires a documentation update - notify the documentation team
• If this change has particular deployment requirements - notify the DevOps team

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes are missing coverage. Please review.

Project coverage is 39.06%. Comparing base (f224218) to head (d9a0287).
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/Billing/Controllers/StripeController.cs	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4112      +/-   ##
==========================================
- Coverage   39.07%   39.06%   -0.01%     
==========================================
  Files        1201     1201              
  Lines       58021    58033      +12     
  Branches     5339     5341       +2     
==========================================
  Hits        22670    22670              
- Misses      34295    34306      +11     
- Partials     1056     1057       +1     

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[github-actions]

Checkmarx One – Scan Summary & Details – 3bcafec4-1aa2-404d-9562-da52ef877cfe

No New Or Fixed Issues Found

[cturnbull-bitwarden]

Short and sweet. Looks good!