Module rules 

Structs

DefaultSunsetProvider

Default sunset calculator using VSOP87 astronomy engine.

FixedAdjustment

Fixed day offset for all dates.

NoAdjustment

No adjustment (use astronomical calculation).

RuleContext

Rule engine configuration.

RuleContextBuilder

Builder with validation for RuleContext.

Traits

CustomFastingRule

Custom rule trait.

MoonProvider

Moon sighting adjustment provider.

SunsetProvider

Interface for calculating sunset time.

Functions

analyze

Analyzes fasting status for a specific moment in time.

check

Checks fasting status for a given date. Defaults to Noon UTC.