up

internal/awardref/importers.go

@@ -3,6 +3,7 @@ package awardref
 import (
 	"context"
 	"encoding/csv"
+	"encoding/json"
 	"fmt"
 	"io"
 	"net/http"
@@ -24,6 +25,38 @@ var Importers = map[string]Importer{
 	"POTA": {AwardCode: "POTA", URL: "https://pota.app/all_parks.csv", Fetch: parsePOTA},
 	"SOTA": {AwardCode: "SOTA", URL: "https://www.sotadata.org.uk/summitslist.csv", Fetch: parseSOTA},
 	"WWFF": {AwardCode: "WWFF", URL: "https://wwff.co/wwff-data/wwff_directory.csv", Fetch: parseWWFF},
+	"IOTA": {AwardCode: "IOTA", URL: "https://www.iota-world.org/islands-on-the-air/downloads/download-file.html?path=groups.json", Fetch: parseIOTA},
+}
+
+// parseIOTA reads iota-world.org's groups.json (refreshed daily): an array of
+// {refno, name, dxcc_num, grp_region}. The reference is the IOTA number
+// (EU-005); the DXCC number lets the per-QSO picker filter by entity.
+func parseIOTA(_ context.Context, body io.Reader) ([]Ref, error) {
+	var groups []struct {
+		RefNo  string `json:"refno"`
+		Name   string `json:"name"`
+		DXCC   string `json:"dxcc_num"`
+		Region string `json:"grp_region"`
+	}
+	if err := json.NewDecoder(body).Decode(&groups); err != nil {
+		return nil, fmt.Errorf("parse IOTA json: %w", err)
+	}
+	out := make([]Ref, 0, len(groups))
+	for _, g := range groups {
+		ref := strings.ToUpper(strings.TrimSpace(g.RefNo))
+		if ref == "" {
+			continue
+		}
+		dxcc, _ := strconv.Atoi(strings.TrimSpace(g.DXCC))
+		grp := strings.TrimSpace(g.Region)
+		if grp == "" { // fall back to the continent prefix (AF/EU/NA/…)
+			if i := strings.IndexByte(ref, '-'); i > 0 {
+				grp = ref[:i]
+			}
+		}
+		out = append(out, Ref{Code: ref, Name: strings.TrimSpace(g.Name), DXCC: dxcc, Group: grp})
+	}
+	return out, nil
 }
 
 // CanUpdate reports whether an award has an online reference list.