Feature/user profile

[tqha1011]

Summary by CodeRabbit

Release Notes

• New Features

  • Added AI-powered chatbot assistant (TaskBot) for intelligent task management via conversational interface
  • Implemented dynamic category management with user-profile-based categories
  • Added custom tag creation functionality
  • Introduced activity heatmap displaying task completion history on user profile
  • Enhanced color adaptation for improved dark mode support

• Improvements

  • Reorganized category and tag selection across task creation and detail screens

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

This PR introduces a comprehensive task management enhancement with three major features: a new category system with dynamic UI selection, an AI-powered chatbot assistant integrated with Google Generative AI for task creation, and a refactored tag system. It also updates the user profile model to include activity heatmap data and modifies the task model to use structured category objects instead of strings. Supporting database migrations add server-side RPC functions for user profile statistics and AI-assisted task creation.

Changes

Cohort / File(s)	Summary
Color Adaptation Utility src/lib/core/utils/adaptive_color_extension.dart	New AdaptiveColorExtension adds theme-aware color adaptation by interpolating colors toward white in dark mode to improve visibility.
Category Feature src/lib/features/category/model/category_model.dart, src/lib/features/category/repository/category_repository.dart, src/lib/features/category/viewmodel/category_viewmodel.dart, src/lib/features/category/view/widgets/category_choice_chips.dart	Complete category system with model (immutable with hex color parsing), repository (Supabase-backed fetching), viewmodel (state management with loading/error), and UI widget (adaptive color choice chips for selection).
ChatBot AI Feature src/lib/features/chatbot/model/chatmessage_model.dart, src/lib/features/chatbot/services/chatbot_services.dart, src/lib/features/chatbot/viewmodel/chatbot_viewmodel.dart, src/lib/features/chatbot/view/chatbot_view.dart, src/lib/features/chatbot/view/widgets/{bot_avatar,chat_header,day_separator,message_composer,message_tile,typing_indicator,user_avatar}.dart	Complete chatbot implementation with Google Generative AI integration, local chat history persistence (SharedPreferences), Supabase RPC task creation, message models with serialization, viewmodel for state/lifecycle management, and comprehensive UI widgets (avatars, message bubbles, input composer, typing indicator, headers).
Tag Feature Refactor src/lib/features/tag/model/tag_model.dart, src/lib/features/tag/repository/tag_repository.dart, src/lib/features/tag/viewmodel/tag_viewmodel.dart, src/lib/features/tag/view/widgets/tag_selector.dart	New tag system extracted from task viewmodel: model with color parsing, repository with fetch/create operations, viewmodel with selection state and custom tag creation (with palette-based color generation), and UI widget (chip-based selector with custom tag creation dialog).
Task Model & Views Updates src/lib/features/tasks/model/task_model.dart, src/lib/features/tasks/view/screens/create_task_screen.dart, src/lib/features/tasks/view/screens/task_detail_screen.dart, src/lib/features/tasks/view/widgets/tag_selector.dart, src/lib/features/tasks/viewmodel/task_viewmodel.dart	Task model refactored to use CategoryModel instead of String for categories; legacy tag management removed from viewmodel and delegated to TagViewModel; UI screens updated to use CategoryViewModel and TagViewModel for data and selection; local TagSelector widget replaced with feature-level tag_feature.TagSelector.
User Profile Feature Updates src/lib/features/user/model/user_profile_model.dart, src/lib/features/user/service/user_service.dart, src/lib/features/user/viewmodel/user_profile_viewmodel.dart, src/lib/features/user/view/user_profile_view.dart	User profile model extended with heatmapData field (map of DateTime to task counts); service adds auth validation; viewmodel generates mock heatmap data; view integrates flutter_heatmap_calendar with interactive cells and bottom sheet modal.
Screen Integration & Navigation src/lib/features/main/view/screens/main_screen.dart, src/lib/features/statistics/view/screens/statistics_screen.dart, src/lib/features/statistics/view/widgets/statistics_widgets.dart	Main screen loads categories/tags on init and replaces calendar placeholder with ChatBotView; Statistics screen integrates category loading; CompletedTaskCard now reads CategoryViewModel to assign dynamic category instead of hardcoded value.
App Setup & Dependencies src/lib/main.dart, pubspec.yaml	App-level providers registered for CategoryViewModel and TagViewModel; new dependencies added: flutter_heatmap_calendar: ^1.0.5, google_generative_ai: ^0.4.7; shared_preferences version downgraded.
Database Migrations supabase/migrations/20260409084009_create_user_profile_rpc.sql, supabase/migrations/20260413084521_update_user_profile_with_heatmap_rpc.sql, supabase/migrations/20260417060333_chatbot_add_task_rpc.sql	Three migrations: user profile RPC (cleanup), enhanced user profile RPC with heatmap calculation and streak logic (7+ lines of complex date/streak grouping), and chatbot task creation RPC (upserts tags, links to task, error handling).

Sequence Diagram(s)

sequenceDiagram
    actor User
    participant ChatBotView
    participant ChatBotViewModel
    participant ChatBotAssistantService
    participant GoogleGenAI
    participant SupabaseRPC
    participant SharedPrefs

    User->>ChatBotView: Type & send message
    ChatBotView->>ChatBotViewModel: sendMessage(text)
    ChatBotViewModel->>SharedPrefs: Load chat history
    ChatBotViewModel->>ChatBotAssistantService: sendMessage(userMessage)
    ChatBotAssistantService->>GoogleGenAI: Send message to chat session
    GoogleGenAI-->>ChatBotAssistantService: Response with function call (create_task_full)
    ChatBotAssistantService->>SupabaseRPC: Call create_task_full(title, priority, profile_id, tags)
    SupabaseRPC-->>ChatBotAssistantService: Task created (task_id)
    ChatBotAssistantService->>GoogleGenAI: Send function result back to session
    GoogleGenAI-->>ChatBotAssistantService: Final text response
    ChatBotAssistantService-->>ChatBotViewModel: Response text
    ChatBotViewModel->>SharedPrefs: Append assistant message & save history
    ChatBotViewModel->>ChatBotView: Notify listeners
    ChatBotView->>User: Display message & typing indicator

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Estimated code review effort

🎯 4 (Complex) | ⏱️ ~65 minutes

Possibly related PRs

• PR #30: Modifies user profile model and related services (user_profile_model.dart, user service/viewmodel) for heatmap data integration; overlaps with this PR's user profile enhancements.
• PR #33: Makes overlapping changes to tag system refactoring, including TagSelector widget, tag management APIs, and TagModel handling across task and tag features.
• PR #23: Updates StatisticsScreen initialization logic to load categories based on Supabase user state; aligns with this PR's category-loading side effects in screen startup.

Suggested reviewers

• hoanghaoz

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🐰 Whiskers twitch with glee—categories hop into place,
A chatbot friend arrives to help tasks embrace,
Tags dance in new colors, heatmaps show the way,
This PR hops forward to brighten your day! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The PR title 'Feature/user profile' is vague and does not clearly summarize the actual changes. The changeset includes chatbot features, category/tag management, adaptive colors, heatmap functionality, and multiple view models—not primarily about user profile.	Replace with a descriptive title that accurately reflects the primary changes, such as 'Add chatbot, category/tag management, and heatmap features' or 'Integrate AI assistant with category and tag selection UI'.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/user-profile

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