- Data models and type definitions done
Created core TypeScript interfaces- Defined UserLocation interface (latitude, longitude, accuracy)
- Defined CelestialObject interface (id, name, position, magnitude, type)
- Defined Star interface extending CelestialObject (temperature, spectralType, distance, size)
- Defined Constellation interface (name, stars, boundaryLines, mythology)
- Defined Configuration interface (twinkleModeEnabled, storytellingMode, lastViewPosition)
Written property tests for data model validation
- Tested latitude range validation (-90 to 90)
- Tested longitude range validation (-180 to 180)
- Tested magnitude values are numeric
- Tested spectral type format validation
- Configuration parser and serialization
Implemented Configuration parser- Created parseConfiguration function that validates JSON structure
- Implemented field presence validation for required fields
- Returned descriptive error messages for invalid configurations
- Handled parsing within 500ms performance requirement
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