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feat : [I18PP-249] i18nify-go geo changes (#182)
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132 changes: 132 additions & 0 deletions
132
packages/i18nify-go/modules/country_subdivisions/zipcode/zipcode.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| // Package zipcode manages lookup for all the details related to zipcode (city, state) for a country | ||
| package zipcode | ||
|
|
||
| import ( | ||
| "github.com/razorpay/i18nify/packages/i18nify-go/modules/country_subdivisions" | ||
| "strings" | ||
| ) | ||
|
|
||
| type ZipCodeDetails struct { | ||
| Details []Details | ||
| } | ||
|
|
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| type ZipCodeData struct { | ||
| zipCodeToDetails map[string]ZipCodeDetails | ||
| cityToZipCodes map[string][]string | ||
| } | ||
| type Details struct { | ||
| cityNames []string | ||
| stateCode string | ||
| } | ||
|
|
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| var zipCodeStore = make(map[string]ZipCodeData) | ||
|
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| func GetCountryZipCodeDetails(countryCode string) ZipCodeData { | ||
| if _, exists := zipCodeStore[countryCode]; !exists { | ||
| subdivision := country_subdivisions.GetCountrySubdivisions(countryCode) | ||
| zipCodeData := initializeZipCodeMap(subdivision) | ||
| zipCodeStore[countryCode] = zipCodeData | ||
| } | ||
| return zipCodeStore[countryCode] | ||
| } | ||
| func GetDetailsFromZipCode(zipCode string, countryCode string) []country_subdivisions.State { | ||
| // Validate inputs | ||
| if zipCode == "" || countryCode == "" { | ||
| return nil | ||
| } | ||
|
|
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| // Get zip code data and subdivisions | ||
| zipCodeData := GetCountryZipCodeDetails(countryCode) | ||
| subdivisions := country_subdivisions.GetCountrySubdivisions(countryCode) | ||
|
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| var states []country_subdivisions.State | ||
|
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| // Check if zipcode exists in the data | ||
| zipDetails, exists := zipCodeData.zipCodeToDetails[zipCode] | ||
| if !exists { | ||
| return states | ||
| } | ||
|
|
||
| // Iterate through details for this zipcode | ||
| for _, detail := range zipDetails.Details { | ||
| stateCode := detail.stateCode | ||
| // Check if state exists | ||
| state, stateExists := subdivisions.States[stateCode] | ||
| if !stateExists { | ||
| continue | ||
| } | ||
| // Create a copy of the state to modify | ||
| stateCopy := state | ||
| stateCopy.Cities = map[string]country_subdivisions.City{} | ||
| for _, cityName := range detail.cityNames { | ||
| stateCopy.Cities[cityName] = state.Cities[cityName] | ||
| } | ||
| states = append(states, stateCopy) | ||
| } | ||
|
|
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| return states | ||
| } | ||
|
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| func IsValidZipCode(zipCode string, countryCode string) bool { | ||
| zipCodeData := GetCountryZipCodeDetails(countryCode) | ||
| _, exists := zipCodeData.zipCodeToDetails[zipCode] | ||
| return exists | ||
| } | ||
| func GetZipCodesFromCity(city string, countryCode string) []string { | ||
| zipCodeData := GetCountryZipCodeDetails(countryCode) | ||
| return zipCodeData.cityToZipCodes[strings.ToLower(city)] | ||
| } | ||
|
|
||
| // initializeZipCodeMap builds the zip code maps for the given CountrySubdivisions. | ||
| func initializeZipCodeMap(subdivisions country_subdivisions.CountrySubdivisions) ZipCodeData { | ||
| cityToZipCode := make(map[string][]string) | ||
| zipCodeToDetails := make(map[string]ZipCodeDetails) | ||
|
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| for stateCode, state := range subdivisions.States { | ||
| for _, city := range state.Cities { | ||
| // Lowercase city name once | ||
| cityKey := strings.ToLower(city.Name) | ||
| cityToZipCode[cityKey] = city.Zipcodes | ||
|
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| for _, zipcode := range city.Zipcodes { | ||
| details, exists := zipCodeToDetails[zipcode] | ||
| if !exists { | ||
| details = ZipCodeDetails{} | ||
| } | ||
| // Check if state already exists to avoid duplicates | ||
| stateExists := false | ||
| for _, existingDetail := range details.Details { | ||
| if existingDetail.stateCode == stateCode { | ||
| stateExists = true | ||
| // Ensure unique city names | ||
| existingDetail.cityNames = appendUnique(existingDetail.cityNames, city.Name) | ||
| break | ||
| } | ||
| } | ||
| if !stateExists { | ||
| details.Details = append(details.Details, Details{ | ||
| stateCode: stateCode, | ||
| cityNames: []string{city.Name}, | ||
| }) | ||
| } | ||
|
|
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| zipCodeToDetails[zipcode] = details | ||
| } | ||
| } | ||
| } | ||
|
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| return ZipCodeData{ | ||
| cityToZipCodes: cityToZipCode, | ||
| zipCodeToDetails: zipCodeToDetails, | ||
| } | ||
| } | ||
|
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| // Helper function to append unique strings | ||
| func appendUnique(slice []string, item string) []string { | ||
| for _, existing := range slice { | ||
| if existing == item { | ||
| return slice | ||
| } | ||
| } | ||
| return append(slice, item) | ||
| } |
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