45 lines
996 B
Go
45 lines
996 B
Go
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package weather
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import (
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"regexp"
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"strings"
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)
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var (
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// metarPattern matches METAR or SPECI at the start followed by station code
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metarPattern = regexp.MustCompile(`^(METAR|SPECI)\s+[A-Z0-9]{4}`)
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// tafPattern matches TAF at the start followed by station code
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tafPattern = regexp.MustCompile(`^TAF\s+[A-Z0-9]{4}`)
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)
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// Classify identifies the weather report type from raw text
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// Returns the report type (METAR, SPECI, or TAF) and true if it's a weather report
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func Classify(raw string) (string, bool) {
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raw = strings.TrimSpace(raw)
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if raw == "" {
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return "", false
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}
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// Check for METAR/SPECI
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if metarPattern.MatchString(raw) {
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if strings.HasPrefix(raw, "SPECI") {
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return "SPECI", true
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}
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return "METAR", true
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}
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// Check for TAF
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if tafPattern.MatchString(raw) {
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return "TAF", true
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}
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return "", false
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}
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// HasValidEnding checks if the report ends with '='
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func HasValidEnding(raw string) bool {
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raw = strings.TrimSpace(raw)
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return strings.HasSuffix(raw, "=")
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}
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