60 lines
1.6 KiB
Go
60 lines
1.6 KiB
Go
package handlers
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import (
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"gestion/models"
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"regexp"
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)
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var postalCodeRe = regexp.MustCompile(`\b(\d{5})\b`)
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// postalSet convertit une slice de codes en set pour lookup O(1).
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func postalSet(codes []string) map[string]struct{} {
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m := make(map[string]struct{}, len(codes))
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for _, c := range codes {
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m[c] = struct{}{}
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}
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return m
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}
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// extractPostalCode extrait le premier code postal à 5 chiffres d'une adresse.
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func extractPostalCode(address string) string {
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m := postalCodeRe.FindStringSubmatch(address)
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if len(m) < 2 {
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return ""
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}
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return m[1]
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}
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// zoneCheckResult est le résultat de la vérification de zone.
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type zoneCheckResult struct {
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PostalCode string
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ZoneName string
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MinAmount float64
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OK bool
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}
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// checkDeliveryZone vérifie si le total respecte le minimum de la zone de l'adresse.
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// Les zones sont lues depuis la DB (settings.PostalZones).
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// Code postal introuvable → OK = false (refus).
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// Code postal hors de toutes les zones → OK = false (refus).
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func checkDeliveryZone(deliveryAddress string, total float64, zones []models.PostalZone) zoneCheckResult {
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code := extractPostalCode(deliveryAddress)
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if code == "" {
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return zoneCheckResult{PostalCode: "", ZoneName: "inconnue", MinAmount: 0, OK: false}
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}
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for _, zone := range zones {
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set := postalSet(zone.Codes)
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if _, found := set[code]; found {
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return zoneCheckResult{
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PostalCode: code,
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ZoneName: zone.Name,
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MinAmount: zone.MinAmount,
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OK: total >= zone.MinAmount,
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}
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}
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}
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return zoneCheckResult{PostalCode: code, ZoneName: "hors zone", MinAmount: 0, OK: false}
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}
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