Mercurial > gemma
view pkg/models/isrs.go @ 5637:7f9600ab5461
merge
author | Thomas Junk <thomas.junk@intevation.de> |
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date | Wed, 14 Jun 2023 08:45:11 +0200 |
parents | 1222b777f51f |
children |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2018 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Raimund Renkert <raimund.renkert@intevation.de> // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package models import ( "encoding/json" "errors" "fmt" "strconv" ) // Isrs represents the gauge identification data structure type Isrs struct { CountryCode string LoCode string FairwaySection string Orc string Hectometre int } // UnmarshalJSON implements the json.Unmarshaler interface. func (isrs *Isrs) UnmarshalJSON(data []byte) error { var s string if err := json.Unmarshal(data, &s); err != nil { return err } in, err := IsrsFromString(s) if err != nil { return err } *isrs = *in return nil } // Less orders two Isrs codes. func (isrs *Isrs) Less(other *Isrs) bool { if isrs.CountryCode < other.CountryCode { return true } if isrs.CountryCode > other.CountryCode { return false } if isrs.LoCode < other.LoCode { return true } if isrs.LoCode > other.LoCode { return false } if isrs.FairwaySection < other.FairwaySection { return true } if isrs.FairwaySection > other.FairwaySection { return false } if isrs.Orc < other.Orc { return true } if isrs.Orc > other.Orc { return false } if isrs.Hectometre < other.Hectometre { return true } return false } // MarshalJSON implements the json.Marshaler interface. func (isrs *Isrs) MarshalJSON() ([]byte, error) { if isrs == nil { return nil, nil } return json.Marshal(isrs.String()) } // IsrsFromString converts string representation of isrs code to type Isrs func IsrsFromString(isrsCode string) (*Isrs, error) { if len(isrsCode) < 20 { return nil, errors.New("ISRS code too short") } hm, err := strconv.Atoi(isrsCode[15:20]) if err != nil { return nil, err } isrs := Isrs{ CountryCode: isrsCode[0:2], LoCode: isrsCode[2:5], FairwaySection: isrsCode[5:10], Orc: isrsCode[10:15], Hectometre: hm, } return &isrs, nil } // String creates a isrs code string from Isrs func (isrs *Isrs) String() string { return fmt.Sprintf("%s%s%s%s%05d", isrs.CountryCode, isrs.LoCode, isrs.FairwaySection, isrs.Orc, isrs.Hectometre) }