Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Add journey generator #153

Merged
merged 9 commits into from
Jan 7, 2025
Merged

Add journey generator #153

merged 9 commits into from
Jan 7, 2025

Conversation

cp-megh-l
Copy link
Collaborator

@cp-megh-l cp-megh-l commented Jan 6, 2025

Summary by CodeRabbit

Summary by CodeRabbit

  • New Features

    • Introduced a new journey generation mechanism for tracking user locations.
    • Added constants for defining movement and steady state distances.
  • Bug Fixes

    • Enhanced error handling to prevent null pointer exceptions in journey details.
  • Refactor

    • Streamlined location tracking and journey management methods.
    • Updated method signatures in location and journey-related services.
    • Introduced a new JourneyResult data class for more flexible journey handling.
    • Simplified dependency injection and management of user preferences.
    • Renamed methods for clarity and consistency.
    • Enhanced accessibility of location tracking methods.
  • Chores

    • Improved code clarity by renaming methods and properties.
    • Enhanced location tracking approach with more precise distance calculations.

Copy link

coderabbitai bot commented Jan 6, 2025

Walkthrough

The pull request introduces changes to the location tracking and journey management system within the application. Key modifications include the implementation of dependency injection for LocationManager, the renaming of properties and methods for clarity, and the restructuring of journey management logic across multiple components. The updates enhance the handling of user location updates and streamline the journey generation process, eliminating unnecessary complexity in the codebase.

Changes

File Change Summary
app/src/main/java/com/canopas/yourspace/domain/fcm/YourSpaceFcmService.kt Added @Inject dependency for LocationManager and replaced location update logic with locationManager.startLocationTracking()
app/src/main/java/com/canopas/yourspace/ui/flow/journey/components/LocationHistory.kt Renamed method isSteadyLocation() to isSteady() in two instances
app/src/main/java/com/canopas/yourspace/ui/flow/journey/detail/UserJourneyDetailScreen.kt Updated property reference from journey.update_at!! to a safe call with journey.update_at?.let { getFormattedLocationTime(it) }
app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt Removed journeyRepository from constructor and made userPreferences public; simplified journey loading logic
data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt Renamed update_at to updated_at, added new JourneyResult data class, renamed isSteadyJourney() to isSteady(), renamed isMovingJourney() to isMoving()
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt New file with journey generation logic, including methods for calculating journey states
data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt Simplified location journey saving, added cacheLocations method, updated method signatures
data/src/main/java/com/canopas/yourspace/data/service/location/ApiJourneyService.kt Renamed saveCurrentJourney to addJourney, simplified journey saving process
data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt Updated location update constants and made startLocationTracking() public

Possibly related PRs

Suggested reviewers

  • cp-sneh-s
  • kaushiksaliya

Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

❤️ Share
🪧 Tips

Chat

There are 3 ways to chat with CodeRabbit:

‼️ IMPORTANT
Auto-reply has been disabled for this repository in the CodeRabbit settings. The CodeRabbit bot will not respond to your replies unless it is explicitly tagged.

  • Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
    • @coderabbitai generate unit testing code for this file.
    • @coderabbitai modularize this function.
  • PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
    • @coderabbitai gather interesting stats about this repository and render them as a table. Additionally, render a pie chart showing the language distribution in the codebase.
    • @coderabbitai read src/utils.ts and generate unit testing code.
    • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
    • @coderabbitai help me debug CodeRabbit configuration file.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (Invoked using PR comments)

  • @coderabbitai pause to pause the reviews on a PR.
  • @coderabbitai resume to resume the paused reviews.
  • @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
  • @coderabbitai full review to do a full review from scratch and review all the files again.
  • @coderabbitai summary to regenerate the summary of the PR.
  • @coderabbitai generate docstrings to generate docstrings for this PR. (Beta)
  • @coderabbitai resolve resolve all the CodeRabbit review comments.
  • @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
  • @coderabbitai help to get help.

Other keywords and placeholders

  • Add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.
  • Add @coderabbitai summary or Summary to generate the high-level summary at a specific location in the PR description.
  • Add @coderabbitai anywhere in the PR title to generate the title automatically.

CodeRabbit Configuration File (.coderabbit.yaml)

  • You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
  • Please see the configuration documentation for more information.
  • If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json

Documentation and Community

  • Visit our Documentation for detailed information on how to use CodeRabbit.
  • Join our Discord Community to get help, request features, and share feedback.
  • Follow us on X/Twitter for updates and announcements.

Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 3

🧹 Nitpick comments (13)
app/src/main/java/com/canopas/yourspace/ui/flow/journey/components/LocationHistory.kt (1)

Line range hint 371-419: Consider modernizing time and location formatting

The time and location formatting logic could benefit from several improvements:

  1. Replace SimpleDateFormat with the newer DateTimeFormatter from java.time
  2. Consider extracting the address formatting logic into a separate utility class
  3. Add more precision to distance formatting for better UX

Example improvement for time formatting:

-val sdf = SimpleDateFormat("hh:mm a", Locale.getDefault())
+val dtf = DateTimeFormatter
+    .ofPattern("hh:mm a")
+    .withLocale(Locale.getDefault())

Example improvement for distance formatting:

-"${distanceInKm.roundToInt()} km"
+String.format("%.1f km", distanceInKm)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt (3)

43-49: New journey creation flow is clean.
Creating the new journey remotely and then caching the returned journey ensures IDs remain in sync. Consider logging the newly created journey’s ID for debugging purposes.


58-58: Error logging is minimal.
Including contextual details such as userId or location info in the log may speed up debugging.


83-89: FIFO storage of last five locations.
Removing the oldest entry and adding the new location is a straightforward approach. If you anticipate future scaling (e.g., storing more than five locations), consider a ring buffer or parameterizing the capacity.

data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (6)

13-16: Distance/time constants defined here.
Using descriptive constants like MIN_DISTANCE and MIN_TIME_DIFFERENCE helps maintain code readability. Consider referencing them from a centralized config if these thresholds are used across multiple classes.


46-52: Optional geometric median calculation.
This is an interesting approach to refine the reference location. Be aware of potential performance overhead for a large lastLocations list, though the usage of minByOrNull is acceptable for modest data sets.


68-70: Time difference in milliseconds.
Subtracting lastKnownJourney.updated_at from newLocation.time is straightforward. Consider verifying the device’s clock or time synchronization for more accurate calculations.


200-202: Distance in meters from Location.distanceTo.
This straightforward usage is typically accurate for short distances. For large distances, consider using Location.distanceBetween for geodesic calculations.


208-216: Geometric median scanning approach.
Iterating over candidates in locations to find the minimal sum of distances is acceptable for small sets. For large sets, consider a specialized geometric median algorithm for performance.


218-222: Euclidean distance fallback.
This function is primarily for quick approximate checks. Keep in mind that actual earth curvature is ignored. If real-world accuracy is needed, use location-based distance methods.

data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt (1)

28-35: JourneyResult data class is a tidy wrapper.
This clean approach bundles together two possible outcomes — updated or new journeys. Ensure all consuming methods handle cases where one or both are null.

data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt (1)

83-83: startLocationTracking now public.
Elevating visibility allows easier external invocation. Ensure you consider user consent or permission states when calling this from external classes.

Do you want me to open an issue to add runtime checks for location permissions before starting location tracking?

app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (1)

163-163: Avoid double-bang (!!) on updated_at.
If updated_at is always non-null, consider documenting that constraint or using a safe call. This will help prevent potential NPEs in the future if requirements change.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 37f5f91 and f50b02d.

📒 Files selected for processing (9)
  • app/src/main/java/com/canopas/yourspace/domain/fcm/YourSpaceFcmService.kt (3 hunks)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/components/LocationHistory.kt (1 hunks)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/detail/UserJourneyDetailScreen.kt (1 hunks)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (3 hunks)
  • data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt (2 hunks)
  • data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (1 hunks)
  • data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt (3 hunks)
  • data/src/main/java/com/canopas/yourspace/data/service/location/ApiJourneyService.kt (1 hunks)
  • data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt (2 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (1)
  • GitHub Check: build
🔇 Additional comments (26)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt (8)

5-5: Import usage confirmed.
The isSteady import is used at line 54 to determine whether a journey is steady, so there's no issue with this newly added import.


24-26: Sequence of actions looks consistent.
Calling cacheLocations before retrieving the last known journey ensures the newly extracted location is preserved in the cache. This approach helps keep the current location in the list of recent locations used by getJourney.


28-33: Integration with getJourney is clear.
The new function call passes the necessary parameters (userId, extractedLocation, lastKnownJourney, and last five cached locations) to generate or update the journey. Consider adding unit tests to verify different location and journey states.


35-41: Well-structured approach for updated journeys.
Storing the updated journey in cache and remotely ensures consistency. Ensure you handle potential failures of updateJourney gracefully, such as network timeouts.


51-55: State-based location update is sensible.
Checking both updatedJourney and newJourney before adjusting location requests prevents extraneous triggers. Confirm that ignoring one of these journeys won't miss a transition edge case (e.g., only newJourney is created).


68-70: Signature update to private confirmed.
Restricting getLastKnownLocation to private scope is good if it's only needed internally, ensuring a clearer API boundary.


72-72: Cache fallback ensures local-first retrieval.
The usage of ?: run { ... } is a clean way to fetch from remote if the cache is empty. Consider handling potential concurrency if multiple fetches occur simultaneously.


76-78: Cache population from remote is sound.
Populating the cache whenever a valid remote journey is found helps keep data consistent. Ensure wide test coverage for the scenario where lastJourney is null.

data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (7)

27-44: Initial STEADY journey creation is clear.
When no lastKnownJourney exists, creating a new steady journey is straightforward. Verify that external calls handle the newly created journey properly, especially if a user is actually moving.


53-67: Distance determination logic is correct.
Differentiating between a steady and moving journey to pick the right reference point is logical. Ensure you handle edge cases where lastKnownJourney has partially updated coordinates.


75-82: Updating existing STEADY journey on day change.
This makes sense as it preserves continuity for the same physical spot but across different days. Check your domain logic if the user physically moved overnight but the distance is still < MIN_DISTANCE.


98-133: Transition from STEADY to MOVING or updated STEADY.
This block handles the user starting to move (distance > MIN_DISTANCE) or updates an existing steady position if still within range. The creation of a new moving journey is well-defined.


135-173: Handling MOVING journeys thoroughly.
The logic covers both stopping (timeDifference > MIN_TIME_DIFFERENCE) and continuing movement (distance > MIN_DISTANCE_FOR_MOVING). Ensure the route distance accumulations match your business needs (e.g., adding partial distances).


176-178: Null return clarifies no changes.
Returning null when no condition is met is a clean indicator that nothing should be updated. Confirm that upstream callers handle this condition gracefully.


183-195: Day check implemented in isDayChanged.
Using Calendar.DAY_OF_YEAR is valid; watch out for year boundaries (e.g., Dec to Jan). If day/year transitions matter, consider also comparing Calendar.YEAR.

data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt (3)

22-22: Renaming update_at to updated_at improves readability.
This change makes the naming more consistent with standard timestamp conventions.


42-42: isSteady usage in toRoute.
Conditionally returning an empty list for a steady journey is clear. If you need partial route info for stationary locations, ensure the logic covers that scenario.


55-55: isSteady method is concise.
Checking if to_latitude and to_longitude are null is a straightforward definition of steady. This consistent naming also aligns with the rest of the code.

data/src/main/java/com/canopas/yourspace/data/service/location/ApiJourneyService.kt (2)

27-30: New addJourney method signature.
Consolidating multiple parameters into newJourney: LocationJourney simplifies your API. Ensure userId is non-blank to avoid invalid Firestore paths, as noted in the comment.


40-40: updateJourney method is straightforward.
Setting the entire journey object is a clean approach. If partial updates are needed in the future, consider using Firestore’s update function.

data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt (1)

26-27: Introducing MOVING_DISTANCE and STEADY_DISTANCE.
Defining constants clarifies threshold usage. Verify you consistently reference these in the codebase if you intend to enforce them outside createRequest.

app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (2)

111-111: Edge-case check for null updated timestamps.
Skipping items with a null updated_at by design looks fine, but make sure the exclusion of null timestamps aligns with your business logic and does not omit valid records.


101-101: 🛠️ Refactor suggestion

Potential null pointer in updated_at usage.
If allJourneys is empty or contains items with a null updated_at, this line might result in null or trigger an NPE due to !!. Consider using a default value or additional checks before referencing updated_at to ensure runtime safety.

app/src/main/java/com/canopas/yourspace/domain/fcm/YourSpaceFcmService.kt (3)

23-23: Good addition of the LocationManager import.
This import is consistent with the newly introduced injection below.


91-93: Lateinit injection for locationManager.
Using lateinit var is appropriate for Hilt-injected fields. However, be cautious not to reference locationManager before injections are set (e.g., in constructors).


172-172: Verify background location tracking usage.
locationManager.startLocationTracking() can have significant privacy and performance implications. Confirm that proper permissions and concurrency safeguards are in place.

[security]

✅ Verification successful

Location tracking implementation verified and secure
The implementation includes all necessary safeguards:

  • Runtime permission checks before tracking
  • Proper manifest declarations (fine, coarse, and background location)
  • Background service registration
  • Error handling
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify location usage patterns and ensure adequate permission checks.

# We look for references to location permission checks or concurrency measures around location usage.
rg -A 5 "startLocationTracking"

Length of output: 3634


Script:

#!/bin/bash
# Check manifest permissions and location configuration
rg -g "AndroidManifest.xml" "permission.*(LOCATION|FOREGROUND_SERVICE)"

# Check location request configuration
ast-grep --pattern 'val request = LocationRequest$$$'

# Check permission handling
rg "requestPermission.*LOCATION"

Length of output: 734


Script:

#!/bin/bash
# Check service declaration and location configuration
rg -g "AndroidManifest.xml" "service.*Background"

# Check location request configuration with broader pattern
rg "LocationRequest\.(Builder|create)"

Length of output: 321

Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 2

🔭 Outside diff range comments (1)
app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (1)

Line range hint 8-8: Remove unused import

The import com.canopas.yourspace.data.repository.JourneyRepository is no longer used after removing the repository from the constructor.

-import com.canopas.yourspace.data.repository.JourneyRepository
🧹 Nitpick comments (5)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (3)

16-16: Rename constant to match its time unit

The constant MIN_UPDATE_INTERVAL_MINUTE is set to 30000L (30 seconds) but has "MINUTE" in its name. This is misleading.

-private const val MIN_UPDATE_INTERVAL_MINUTE = 30000L // 10 seconds
+private const val MIN_UPDATE_INTERVAL_MS = 30000L // 30 seconds

Also, update the comment to correctly state "30 seconds" instead of "10 seconds".


47-51: Consider limiting the number of locations for geometric median calculation

The geometric median calculation could be computationally expensive for large location lists as it has O(n²) complexity.

Consider limiting the number of recent locations used in the calculation:

     val geometricMedian = if (lastLocations.isNotEmpty()) {
-        geometricMedianCalculation(lastLocations)
+        geometricMedianCalculation(lastLocations.takeLast(10))  // Use last 10 locations
     } else {
         null
     }

13-16: Consider extracting configuration and improving architecture

The current implementation could benefit from the following architectural improvements:

  1. Extract constants into a configuration class that can be injected, making it easier to test and configure for different scenarios.
  2. Consider separating journey state management from location calculations into distinct classes.

Example configuration class:

@Injectable
class JourneyConfig {
    val minDistance: Double = 100.0
    val minTimeDifference: Long = 5 * 60 * 1000L
    val minDistanceForMoving: Double = 10.0
    val minUpdateIntervalMs: Long = 30000L
}

Would you like me to provide a complete example of the refactored architecture?

app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (2)

35-35: Consider maintaining encapsulation of userPreferences

The property userPreferences has been made public by removing the private modifier. Unless there's a specific requirement to access this property from outside the ViewModel, it's recommended to keep it private to maintain encapsulation.

-    userPreferences: UserPreferences
+    private val userPreferences: UserPreferences

Line range hint 1-299: Consider architectural improvements for better maintainability

The ViewModel has several areas that could benefit from refactoring:

  1. Date/time calculations could be moved to a separate utility class
  2. Error handling could be consolidated to reduce duplication
  3. Journey data transformation logic could be moved to a domain layer

Consider the following improvements:

  1. Extract date/time utilities:
object DateTimeUtils {
    fun getDayStartTimestamp(timestamp: Long): Long {
        // ... existing implementation
    }
    
    fun getTodayStartTimestamp(): Long {
        // ... existing implementation
    }
    
    fun getTodayEndTimestamp(): Long {
        // ... existing implementation
    }
}
  1. Create a common error handler:
private fun handleError(e: Exception, isLoading: Boolean = false, isAppending: Boolean = false) {
    Timber.e(e, "Operation failed")
    _state.value = _state.value.copy(
        error = e.localizedMessage,
        isLoading = isLoading,
        appending = isAppending
    )
}

Would you like me to create a GitHub issue to track these refactoring tasks?

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between f50b02d and 132997f.

📒 Files selected for processing (5)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/components/LocationHistory.kt (3 hunks)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/detail/UserJourneyDetailScreen.kt (1 hunks)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (1 hunks)
  • data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt (2 hunks)
  • data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/components/LocationHistory.kt
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/detail/UserJourneyDetailScreen.kt
  • data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt
🧰 Additional context used
🪛 GitHub Actions: Android Build
app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt

[error] 8-8: Unused import

🔇 Additional comments (2)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (1)

166-166: Verify route distance calculation accuracy

The cumulative route distance might be inaccurate as it uses straight-line distances between points. For moving journeys, the actual path taken might be longer due to roads and obstacles.

Consider using the Google Maps Roads API or similar service to get more accurate route distances. Would you like me to provide an example implementation?

app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (1)

Line range hint 92-127: Verify offline functionality after removing local journey check

The local journey check mechanism has been removed from loadLocations(). Please verify that offline functionality is properly handled elsewhere in the codebase.

@cp-megh-l cp-megh-l requested a review from cp-sneh-s January 6, 2025 09:32
cp-sneh-s
cp-sneh-s previously approved these changes Jan 6, 2025
# Conflicts:
#	app/src/main/java/com/canopas/yourspace/ui/flow/journey/components/LocationHistory.kt
#	data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt
#	data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt
#	data/src/main/java/com/canopas/yourspace/data/service/location/ApiJourneyService.kt
kaushiksaliya
kaushiksaliya previously approved these changes Jan 6, 2025
@cp-megh-l cp-megh-l dismissed stale reviews from kaushiksaliya and cp-sneh-s via 3b4c947 January 6, 2025 14:14
Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 1

🧹 Nitpick comments (2)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (2)

28-182: Consider breaking down the complex journey management logic

The getJourney function is quite long and contains complex nested conditions. Consider extracting the logic into smaller, focused functions:

  1. Journey creation logic
  2. Steady journey management
  3. Moving journey management

This would improve readability and maintainability.

+private fun createNewSteadyJourney(userId: String, location: Location): LocationJourney {
+    return LocationJourney(
+        user_id = userId,
+        from_latitude = location.latitude,
+        from_longitude = location.longitude,
+        created_at = System.currentTimeMillis(),
+        updated_at = System.currentTimeMillis(),
+        type = JourneyType.STEADY
+    )
+}

+private fun handleSteadyJourney(
+    userId: String,
+    newLocation: Location,
+    lastKnownJourney: LocationJourney,
+    distance: Double,
+    timeDifference: Long,
+    lastLocations: List<Location>
+): JourneyResult? {
+    // Extract steady journey logic here
+}

+private fun handleMovingJourney(
+    userId: String,
+    newLocation: Location,
+    lastKnownJourney: LocationJourney,
+    distance: Double,
+    timeDifference: Long
+): JourneyResult? {
+    // Extract moving journey logic here
+}

212-220: Improve geometric median accuracy

The geometric median calculation currently uses the incorrect Euclidean distance function. For better accuracy:

  1. Use the distanceBetween function instead of distance
  2. Consider using an iterative algorithm for better approximation
 private fun geometricMedianCalculation(locations: List<Location>): Location {
     val result = locations.minByOrNull { candidate ->
         locations.sumOf { location ->
-            val distance = distance(candidate, location)
+            val distance = distanceBetween(candidate, location)
             distance
         }
     } ?: throw IllegalArgumentException("Location list is empty")
     return result
 }
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 132997f and 3b4c947.

📒 Files selected for processing (3)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt (1 hunks)
  • data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt (2 hunks)
  • data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
  • app/src/main/java/com/canopas/yourspace/ui/flow/journey/timeline/JourneyTimelineViewModel.kt
  • data/src/main/java/com/canopas/yourspace/data/models/location/LocationJourney.kt
⏰ Context from checks skipped due to timeout of 90000ms (1)
  • GitHub Check: build
🔇 Additional comments (2)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (2)

42-42: Update property name for consistency

The property update_at should be renamed to updated_at for consistency, as noted in previous reviews.

Also applies to: 79-82, 107-110, 130-134, 169-175


222-226: Replace simplified distance calculation with proper geographic distance

The current distance calculation uses Euclidean distance with latitude/longitude differences, which is incorrect for geographic coordinates.

Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 1

♻️ Duplicate comments (2)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (2)

42-42: ⚠️ Potential issue

Update property name for consistency

The property should be named updated_at instead of update_at for consistency.

-            update_at = System.currentTimeMillis()
+            updated_at = System.currentTimeMillis()

Also applies to: 81-81, 109-109, 133-133, 174-174


222-226: ⚠️ Potential issue

Replace simplified distance calculation with proper geographic distance

The current distance calculation uses Euclidean distance with latitude/longitude differences, which is incorrect for geographic coordinates.

-private fun distance(loc1: Location, loc2: Location): Double {
-    val latDiff = loc1.latitude - loc2.latitude
-    val lonDiff = loc1.longitude - loc2.longitude
-    return sqrt(latDiff * latDiff + lonDiff * lonDiff)
+private fun distance(loc1: Location, loc2: Location): Double {
+    return distanceBetween(loc1, loc2)
+}
🧹 Nitpick comments (2)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (2)

100-178: Consider extracting journey state handling logic

The journey state handling logic is complex with nested conditions. Consider extracting the steady and moving state handling into separate functions for better readability and maintainability.

Example refactor:

private fun handleSteadyJourney(
    lastKnownJourney: LocationJourney,
    newLocation: Location,
    distance: Double,
    timeDifference: Long,
    userId: String,
    lastLocations: List<Location>
): JourneyResult? {
    // Extract steady state logic here
}

private fun handleMovingJourney(
    lastKnownJourney: LocationJourney,
    newLocation: Location,
    distance: Double,
    timeDifference: Long
): JourneyResult? {
    // Extract moving state logic here
}

212-220: Optimize geometric median calculation

The current implementation has O(n²) complexity and might be inefficient for large location lists. Consider:

  1. Adding a size limit for the location list
  2. Using a more efficient algorithm or approximation
 private fun geometricMedianCalculation(locations: List<Location>): Location {
+    // Limit the number of locations to process
+    val maxLocations = 100
+    val limitedLocations = if (locations.size > maxLocations) {
+        locations.takeLast(maxLocations)
+    } else {
+        locations
+    }
+
     val result = locations.minByOrNull { candidate ->
         locations.sumOf { location ->
             val distance = distance(candidate, location)
             distance
         }
     } ?: throw IllegalArgumentException("Location list is empty")
     return result
 }
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 3b4c947 and 7f0ef20.

📒 Files selected for processing (1)
  • data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (1 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (1)
  • GitHub Check: build
🔇 Additional comments (1)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyGenerator.kt (1)

17-17: ⚠️ Potential issue

Fix constant naming to match its time unit

The constant MIN_UPDATE_INTERVAL_MINUTE represents 30 seconds (30000L milliseconds), but its name suggests minutes.

-private const val MIN_UPDATE_INTERVAL_MINUTE = 30000L // 30 seconds
+private const val MIN_UPDATE_INTERVAL_SECONDS = 30000L // 30 seconds

Likely invalid or redundant comment.

@cp-megh-l cp-megh-l requested a review from cp-radhika-s January 7, 2025 11:13
Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 0

🧹 Nitpick comments (2)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt (2)

48-48: Consider adding more context to error logging

While the error handling is concise, adding more context about the userId or journey state could help with debugging.

-            Timber.e(e, "Error while saving location journey")
+            Timber.e(e, "Error while saving location journey for userId: $userId")

73-79: Consider optimizing the caching implementation

While the implementation is functional, consider these improvements:

  1. Extract the magic number 5 as a constant
  2. Consider using a more efficient data structure like CircularFifoQueue from Apache Commons Collections
+    private companion object {
+        private const val MAX_CACHED_LOCATIONS = 5
+    }

     private fun cacheLocations(extractedLocation: Location, userId: String) {
         val lastFiveLocations = (locationCache.getLastFiveLocations(userId) ?: emptyList()).toMutableList()
-        if (lastFiveLocations.size >= 5) {
+        if (lastFiveLocations.size >= MAX_CACHED_LOCATIONS) {
             lastFiveLocations.removeAt(0)
         }
         lastFiveLocations.add(extractedLocation)
         locationCache.putLastFiveLocations(lastFiveLocations, userId)
     }
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between db6886b and b43ef41.

📒 Files selected for processing (1)
  • data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt (2 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (1)
  • GitHub Check: build
🔇 Additional comments (4)
data/src/main/java/com/canopas/yourspace/data/repository/JourneyRepository.kt (4)

14-14: Clean dependency injection setup!

The constructor injection of LocationCache follows best practices for dependency management.


32-45: Well-structured journey update logic!

The code cleanly handles both journey updates and new journey creation with proper caching.


58-70: Excellent refactoring of getLastKnownLocation!

The method has been improved with:

  • Better encapsulation (now private)
  • Clean null handling using Kotlin's safe call operator
  • Clear separation between cache and remote data fetching

25-30: Verify the getJourney implementation

The getJourney method is called but not defined in this file. Please ensure it handles all edge cases properly.

Let's verify the implementation:

✅ Verification successful

Implementation verified: Robust journey state handling

The getJourney implementation in JourneyGenerator.kt is comprehensive and handles all edge cases properly, including:

  • New journey creation
  • State transitions (STEADY ↔ MOVING)
  • Location updates with proper timing and distance thresholds
  • Route tracking and geometric calculations
  • Day change scenarios
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for getJourney implementation
ast-grep --pattern 'fun getJourney($$$)'

Length of output: 19287

Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 1

🧹 Nitpick comments (1)
data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt (1)

Line range hint 73-77: Document usage guidelines for the public API

Since startLocationTracking is now public, please add KDoc documentation explaining:

  • When this method should be called
  • Required permissions
  • Battery consumption implications
  • Any rate limiting considerations
+    /**
+     * Starts location tracking with high accuracy.
+     * Requires android.permission.ACCESS_FINE_LOCATION.
+     * Note: Consider battery consumption implications of continuous tracking.
+     */
     fun startLocationTracking() {
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between b43ef41 and 44ce2bb.

📒 Files selected for processing (1)
  • data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt (2 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (1)
  • GitHub Check: build
🔇 Additional comments (1)
data/src/main/java/com/canopas/yourspace/data/service/location/LocationManager.kt (1)

62-68: LGTM! Clean implementation of location request configuration

The location request is well-configured with appropriate settings:

  • High accuracy priority for precise tracking
  • Consistent use of update interval
  • Approved 50m minimum distance

@cp-megh-l cp-megh-l merged commit f0f6ddd into main Jan 7, 2025
2 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

4 participants