# ADR 0010: Limit MVP reporting periods

- Status: Accepted
- Date: 2026-08-20

## Context

Earlier drafts included named Iranian holidays and analytical event windows. That scope adds calendar sourcing, versioning, UX distinctions, and analytics definitions that are not required for the challenge MVP.

## Decision

Limit reporting periods to Tehran-local daily, weekly, Jalali-month, and Persian-season views. Remove named holidays, Nowruz-specific periods, public-holiday calendars, and generic event-window reporting from the current product and data model.

The reporting week follows the separately approved Saturday-through-Friday boundary in ADR 0012 and must not be inferred differently by the database, API, and frontend.

## Consequences

- No holiday/event entities, imported holiday snapshots, runtime calendar API, or holiday-specific UI are required.
- A reporting-date dimension remains useful for deterministic Gregorian/Jalali conversion and consistent week, month, and season grouping.
- Holiday/event analytics may return only through a future approved spec and ADR.