72 lines
1.3 KiB
Go
72 lines
1.3 KiB
Go
package formats
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import (
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"encoding/json"
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"fmt"
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"sort"
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)
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type Transformer interface {
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Name() string
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Transform(raw json.RawMessage) (*TransformResult, error)
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}
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type TransformResult struct {
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EmisorNIF string
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EmisorNombre string
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NumSerie string
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FechaExpedicion string
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TipoFactura string
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Descripcion string
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Destinatario *DestinatarioData
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IVA []IVAData
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ImporteTotal float64
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Sistema SistemaData
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}
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type DestinatarioData struct {
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Nombre string
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NIF string
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}
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type IVAData struct {
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Base float64
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Cuota float64
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Tipo float64
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}
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type SistemaData struct {
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Nombre string
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NIFProveedor string
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Version string
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}
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var registry = make(map[string]Transformer)
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var order []string
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func Register(t Transformer) {
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name := t.Name()
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if _, exists := registry[name]; !exists {
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order = append(order, name)
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}
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registry[name] = t
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}
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func TransformAuto(raw json.RawMessage) (*TransformResult, string, error) {
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for _, name := range order {
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t := registry[name]
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result, err := t.Transform(raw)
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if err == nil {
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return result, name, nil
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}
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}
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return nil, "", fmt.Errorf("no matching format found (available: %v)", Available())
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}
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func Available() []string {
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names := make([]string, len(order))
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copy(names, order)
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sort.Strings(names)
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return names
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}
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