Adding search related attributed metrics

[cmonfortep]

Task/Issue URL: https://app.asana.com/1/137249556945/project/488551667048375/task/1211382557175158?focus=true

and: https://app.asana.com/1/137249556945/project/488551667048375/task/1211382557175159?focus=true

Description

Introduces 2 attributed metrics and their initial implementation.

Steps to test this PR

While testing this PR you need to add the following in your logcat filter:
tag~:"AttributedMetrics"

Note: Test cases should be executed in order

Not enough data

• We need fresh install (including removing DDG folder in file system)
• Open the app
• wait until "skip onboarding" appears
• After downloading privacy config and atb init, you should see Client status running: true -> isActive: true, isEnabled: true
• Skip onboarding, and go to the browser
• Go to settings -> Attributed Metrics Dev Settings
• Update search atb with v502-1 (and click save)
• Update installation date with 10-8d ago (and click save)
• Go back to the browser
• Perform a search
• No pixels are emitted, Skip emitting...not enough data or no events (both ddg_search_days and ddg_search)

Sending data

• Go to settings -> Attributed Metrics Dev Settings
• Click on "Add Search Events"
• Update search atb with v502-1 (and click save)
• Go back to the browser
• Perform a search
• Ensure you see Fired pixel user_average_searches_past_week_first_month with params {count=0} (Note: 0 is the bucket, not value. Notice first_month in pixel name)
• Ensure you see Fired pixel user_active_past_week with params {days=2}(note: 2 is the bucket, not the value)

Trigger only if search atb refreshes

• Perform a search
• No pixels are emitted, Skip emitting....atb not changed (both ddg_search_days and ddg_search)
• You should see 2 collected events (both ddg_search_days and ddg_search)

installation >1mo ago

• Go to settings -> Attributed Metrics Dev Settings
• Update search atb with v502-1 (and click save)
• Update installation date with some day in August (and click save)
• Perform a search
• Ensure you see Fired pixel user_average_searches_past_week with params {count=0} (Note: 0 is the bucket, not value. Notice this is not first_month)
• Ensure you see Fired pixel user_active_past_week with params {days=2}(note: 2 is the bucket, not the value)

Client not active

• Clear storage
• Open the app
• After downloading privacy config and atb init, you should see Client status running: false -> isActive: false, isEnabled: true
• Skip onboarding, and go to the browser
• Perform a search
• Ensure nothing collected Discard collect event....client not active and not emitted Skip emitting....

UI changes

Before	After
!(Upload before screenshot)	(Upload after screenshot)

[cmonfortep]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• Adding search related attributed metrics #6899 👈 (View in Graphite)
• Add attributed metrics internal dev settings #6901
• Attributed metrics module and skeleton #6887
• develop

This stack of pull requests is managed by Graphite. Learn more about stacking.

[cmonfortep]

internal screen bug fix: before making a search, there's no search retention atb, and override was not working

[cmonfortep]

File only contains logging changes, to improve testing.