Fixed:
- calcSpa with empty angles array no longer crashes (consistent guard with getSpa)
- getSpa with SPA_ZA/SPA_ZA_INC now returns NaN for sunrise/solarNoon/sunset
instead of misleading 0; calcSpa returns "N/A" for those fields
- lib/spa.js header comment corrected from dist/spa.js to lib/spa.js
- dist/spa.js removed (file moved to lib/spa.js in v2.0.0, stale copy deleted)
- wiki-sync.yml handles first-run when GitHub Wiki repo does not yet exist
- CI pack-check grep uses word-boundary pattern to prevent false prefix matches
- Removed package-import-method=hardlink from .npmrc (pnpm default, caused npm warn)
Added:
- options.function validated before calculation; invalid code throws RangeError
- angles with non-RTS function code throws RangeError (requires suntransit)
- TypeScript function overloads for getSpa and calcSpa; angles typed as
[number, ...number[]] non-empty tuple, narrows return type automatically
- SpaFormattedAnglesResult interface, consistent with SpaAnglesResult
- CI jobs declare explicit permissions: contents: read
- Wiki: Implementation Comparison page with accuracy table (8 locations vs C
reference, max delta 0.49 s) and performance benchmarks (nrel-spa vs solar-spa
vs C, both SPA_ZA_RTS and SPA_ZA modes, 200k iterations on Node v24.6.0)
- Wiki: API Reference updated with named types, all throws, Named Types block
- Wiki: Architecture updated with all exported interfaces
Complete modernization of the package. The core SPA algorithm is
unchanged and validated; everything else is rebuilt to match current
JavaScript ecosystem standards.
Changes:
- TypeScript wrapper in src/ with full type definitions
- Dual CJS/ESM build via tsup (dist/index.cjs, dist/index.mjs)
- Core algorithm moved from dist/spa.js to lib/spa.js (same code)
- Input validation with descriptive TypeError/RangeError messages
- formatTime() and SPA function code constants as named exports
- getSpa() / calcSpa() accept null for optional args (tz, options)
- Test suite: 61 ESM assertions and 17 CJS assertions
- GitHub Actions CI: Node 20/22/24 matrix, typecheck, pack-check
- GitHub Wiki: Home, API Reference, Architecture, Twilight, NREL SPA
- NREL attribution in LICENSE and README per their license terms
- package.json: exports map, files, engines >=20, sideEffects: false
- Author corrected to Aric Camarata; repository.url uses git+https://
- LICENSE year corrected to 2023-2026
- Removed: index.js, test.js, dist/spa.js (superseded by above)
