Eric Rakestraw
f13f43cf56
- Introduce internal/providers/nws with shared timestamp parsing used by both NWS sources and normalizers - Migrate NWS observation source + normalizer to use the shared provider helper for consistent RFC3339/RFC3339Nano handling - Introduce internal/providers/openweather with a shared URL invariant helper enforcing units=metric - Remove duplicated OpenWeather URL validation logic from the observation source - Align provider layering: move provider “contract/quirk” logic out of normalizers and into internal/providers - Update normalizer and standards documentation to clearly distinguish: provider helpers (internal/providers) vs canonical mapping logic (internal/normalizers) This refactor reduces duplication between sources and normalizers, clarifies layering boundaries, and establishes a scalable pattern for future forecast and alert implementations.
28 lines
593 B
Go
28 lines
593 B
Go
package nws
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import (
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"fmt"
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"strings"
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"time"
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)
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// ParseTime parses NWS timestamps.
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//
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// NWS observation timestamps are typically RFC3339, sometimes with fractional seconds.
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// We accept RFC3339Nano first, then RFC3339.
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func ParseTime(s string) (time.Time, error) {
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s = strings.TrimSpace(s)
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if s == "" {
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return time.Time{}, fmt.Errorf("empty time")
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}
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if t, err := time.Parse(time.RFC3339Nano, s); err == nil {
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return t, nil
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}
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if t, err := time.Parse(time.RFC3339, s); err == nil {
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return t, nil
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}
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return time.Time{}, fmt.Errorf("unsupported NWS timestamp format: %q", s)
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}
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