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David Durán Hernández

PROFILE

David Durán Hernández

David Agosto developed and enhanced the oreplay-frontend repository over five months, delivering features that improved race analytics, multilingual policy pages, and event QR code workflows. He implemented dynamic runner ordering, time loss analysis, and robust chart visualizations using React, TypeScript, and the Nivo charting library, focusing on data-driven insights and accessibility. His work included refining internationalization with i18next, strengthening data models, and aligning UI with backend timing metrics. Through extensive code refactoring, rigorous testing, and UI consistency improvements, David ensured maintainable, scalable solutions that increased data integrity, user clarity, and performance for both organizers and end users.

Overall Statistics

Feature vs Bugs

85%Features

Repository Contributions

215Total
Bugs
13
Commits
215
Features
71
Lines of code
28,473
Activity Months5

Work History

October 2025

6 Commits • 1 Features

Oct 1, 2025

Month: 2025-10 — The oreplay-frontend work this month centered on cleaning up runner progress display, aligning UI with backend timing metrics, and hardening the data model for performance dashboards. Major changes consolidated timing metrics (time_behind, points_behind) into the UI, removed outdated leader calculations, and extended runner state handling; updated entity types and tests accordingly. Refactoring eliminated redundant leader-related utilities, simplified result components, and updated tests to reflect refined EntityTypes. These changes improve data visibility, reliability, and maintainability for performance metrics and dashboards.

September 2025

32 Commits • 9 Features

Sep 1, 2025

September 2025 performance snapshot for oreplay/oreplay-frontend focused on delivering a robust QR code workflow, revamping stage results leadership calculations, and strengthening UI consistency across locales. The team improved business value through self-serve QR-based event interactions, more accurate live results, and higher code quality and maintainability.

August 2025

18 Commits • 5 Features

Aug 1, 2025

August 2025 (2025-08) frontend-focused delivery for oreplay-frontend emphasizing data integrity, UI consistency, and internationalization. Delivered major FootO ranking improvements with chip-data validation and robust tie-breaking; strengthened data filtering and messaging for FootOSplits/Charts; standardized Rogaine score formatting; and laid groundwork for upcoming control timing with Next Control tracking scaffolding in RunnerModel. Improved test coverage and edge-case handling across features, resulting in more accurate standings, clearer UI, and scalable foundation for future enhancements.

July 2025

149 Commits • 52 Features

Jul 1, 2025

July 2025 performance highlights for oreplay-frontend focused on enhancing race analytics, improving data-driven decision making, and strengthening the visualization stack. Delivered dynamic runner ordering with a new RunnerState model and priority-based result sorting, enabling real-time, race-status-aware rankings with accompanying tests and refactors. Implemented time loss analysis core and configuration across FootOSplits, wiring threshold-based visuals into FootOSplitsTable and RunnerRow, and surfacing loss insights in charts to support performance optimization decisions. Expanded the charting capabilities and visualization quality using the @nivo suite (LineChart, BarChart, PositionChart) with data transformation utilities and accessible color palettes. Added translations for graphs/text, accessibility improvements, and responsive chart layouts. Enhanced UI consistency by prop formatting fixes and comprehensive Prettier formatting across changes, along with targeted refactors to improve readability and maintainability (including simplification of timeLossAnalysis logic). Note: Deprecation-driven simplifications included removal of RadarChart/BoxPlot related components and utilities in favor of a streamlined visualization stack. Dev/quality highlights included dependency updates (Sentry plugin, Node engine >=20), backend version visibility via VersionService, and expanded test coverage for new sorting and time-loss features. Overall impact: faster, data-driven race analysis, clearer performance insights for organizers and developers, and a more maintainable, scalable frontend.

June 2025

10 Commits • 4 Features

Jun 1, 2025

June 2025 — oreplay-frontend delivered a set of multilingual policy pages (Privacy Policy, Cookies Policy, Legal Notice) with robust i18n support (EN/ES; improvements incl. About Us header localization), plus accessibility and routing enhancements. Implemented lazy loading for the Legal Notice page and refined the Organizers page. Addressed key localization issues to ensure compliance and clarity across pages.

Activity

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Quality Metrics

Correctness92.0%
Maintainability91.4%
Architecture87.0%
Performance86.6%
AI Usage22.4%

Skills & Technologies

Programming Languages

CSSHTMLJSONJSXJavaScriptReactSVGShellTypeScripttsx

Technical Skills

API IntegrationAccessibilityAlgorithm DesignAlgorithmsBuild ToolsCSS-in-JSChart ConfigurationChart DevelopmentChart LibrariesChart VisualizationChart.jsCode CleanupCode RefactoringComponent DesignComponent Development

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

oreplay/oreplay-frontend

Jun 2025 Oct 2025
5 Months active

Languages Used

HTMLJavaScriptTypeScriptCSSJSONJSXReactShell

Technical Skills

Front End DevelopmentFront-end DevelopmentFrontend DevelopmentInternationalizationInternationalization (i18n)Material-UI

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