feat(charts): visualize commits over time

[marcgc21]

Description

Create a chart to display the number of commits over time. This will help monitor the project's development pace and identify trends in activity.

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📊 Chart Type

• Line chart or bar chart
• Weekly granularity (preferred)
• Optionally include multiple lines to show per-contributor activity

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🧾 Data Requirements

• Source: GitHub API (GET /repos/:owner/:repo/commits) or local Git logs
• Fields needed:
  • Commit date
  • Commit author (optional)

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✅ Tasks

• Fetch or export commit data grouped by week
• Count commits per week
• (Optional) Separate counts by contributor
• Implement chart using a visualization library (e.g., Chart.js, D3.js, Matplotlib)
• Add legend, axis labels, and chart title
• Handle weeks with zero commits gracefully

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✅ Acceptance Criteria

• Contributors are ordered by activity (highest to lowest)
• Labels and legend are clear and readable
• Chart renders correctly and is exportable or embeddable
• Handles many contributors gracefully (e.g., top 10 only)

[trivedikavya]

Hi @marcgc21 Sir,

I’ve been studying the Disgitbot architecture and would love to take on this feature. The modular design with the Strategy Pattern makes it clear where new processors should live, and I'd like to help expand the analytics capabilities.

Based on my review of the codebase, here is my proposed implementation plan:

1. Data Collection: I will update GitHubService.py to include a method for fetching commit history with weekly granularity.

2. Processing: I'll create a new CommitTrendProcessor in src/pipeline/processors/ to handle the weekly grouping and contributor separation.

3. Visualization: I will implement a CommitTrendChart (Line/Bar chart) in src/utils/analytics/chart_generators.py, ensuring it handles many contributors by focusing on the top 10 as requested.

4. Bot Integration: I’ll add a new slash command to src/bot/commands/analytics_commands.py to allow users to trigger this visualization in Discord.

I am currently going through the Discord Bot Setup Guide to configure my local environment with Python 3.13 and Firestore. I would love to be assigned this issue so I can begin work as soon as my environment is verified.

Best regards, Kavya Trivedi